|| List of recent Carboxylic Acid-related patents
The invention relates to novel polymers containing repeating units based on benzo[2,1,3]thiadiazole-5,6-dicarboxylic acid bis-ester, monomers and methods for their preparation, their use as semiconductors in organic electronic (oe) devices, especially in organic photovoltaic (opv) devices, and to oe and opv devices comprising these polymers.. .
Merck Patent Gmbh
|Toner and two-component developer|
The present invention is a toner including a toner particle containing a binder resin and a charge control agent, wherein the binder resin includes a resin having a polyester unit with at least one aliphatic compound condensed to the terminal thereof, the at least one aliphatic compound being selected from the group consisting of aliphatic monocarboxylic acids each having 30 or more and 102 or less carbon atoms and aliphatic monoalcohols each having 30 or more and 102 or less carbon atoms; and the charge control agent includes a specific compound (a pyrazolone monoazo metal compound).. .
Canon Kabushiki Kaisha
|Toner, process cartridge, developer, and image forming apparatus|
A toner including a polyester resin having an amorphous polyester segment is provided. The amorphous polyester segment includes a condensation polymerization product between a carboxylic acid and an alcohol.
|Composite optical device and optical material for composite optical device|
Provided are a composite optical device including a glass lens; and a resin lens stacked on the glass lens, wherein the resin lens is formed of an optical material; and the optical material comprises an optical resin composition which contains at least a (meth)acrylate-based polymerizable compound; and an aliphatic polyimide precursor obtained from a carboxylic acid anhydride having in a molecular structure, a structure represented by general formula (α): -a1-co—o—co-a2- wherein a1 and a2 are, each independently, a linear, branched or cyclic aliphatic group; and a1 and a2 may form the same cyclic aliphatic group, the aliphatic polyimide precursor being dispersed in a resin material including the (meth)acrylate-based polymerizable compound, and an optical material for a composite optical device.. .
Panasonic Intellectual Property Management Co., Ltd.
|Tin or tin alloy electroplating bath and process for producing bumps using same|
A tin or tin alloy electroplating bath and a process for producing a bump using the same are disclosed. The electroplating bath includes an inorganic acid and an organic acid, as well as a water-soluble salt thereof; a non-ionic surfactant selected from the group consisting of polyoxyalkylene phenyl ethers, polyoxyalkylene polycyclic phenyl ethers, and salts thereof; and leveling agents containing at least one selected from the group consisting of aliphatic aldehydes, aromatic aldehydes, aliphatic ketones, and aromatic ketones; and at least one selected from the group consisting of α,β-unsaturated carboxylic acids, α,β-unsaturated carboxylic acid amides, and salts thereof.
C. Uyemura & Co., Ltd.
|Wet etching methods for copper removal and planarization in semiconductor processing|
Exposed copper regions on a semiconductor substrate can be etched by a wet etching solution comprising (i) one or more complexing agents selected from the group consisting of bidentate, tridentate, and quadridentate complexing agents; and (ii) an oxidizer, at a ph of between about 5 and 12. In many embodiments, the etching is substantially isotropic and occurs without visible formation of insoluble species on the surface of copper.
Novellus Systems, Inc.
|Lubricating composition containing an antiwear agent|
The invention provides a lubricating composition containing an oil of lubricating viscosity, a compound derived from the hydroxy-carboxylic acid and a nitrile compound. The invention further relates to a method of the lubricating an internal combustion engine with the lubricating composition..
The Lubrizol Corporation
|Drilling fluids and drilling fluid additives for treatment of bitumen in wellbore cuttings|
Aqueous drilling fluid compositions include one or more di-functional carboxylic acids in addition to common drilling fluid constituents such as viscosifiers, fluid loss control additives, weighting materials, and other materials. In certain embodiments, the one or more di-functional carboxylic acids comprise dodecanedioic acid.
Marquis Alliance Energy Group Inc.
|Protein adhesives containing an anhydride, carboxylic acid, and/or carboxylate salt compound and their use|
The invention provides protein adhesives, and methods of making and using such adhesives. The protein adhesives contain a protein-bonding agent and plant protein composition, such as an isolated water-soluble protein fraction or ground plant meal obtained from plant biomass.
Biopolymer Technologies, Ltd.
An ionomer composite comprises a partially neutralized acid copolymer that comprises copolymerized units of an α-olefin having 2 to 10 carbons and units of an α,β-ethylenically unsaturated carboxylic acid having 3 to 8 carbons and a nanoscale filler material that are mutually dispersible in an aqueous medium. The ionomer composite itself may be formed into an article of manufacture or let down in a host polymer to form a multipolymer composite.
E.i. Du Pont De Nemours And Company
High hydrocarbon resistant chemically cross-linked aromatic polyimide membrane for separations
This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds.
Graft polymers for enhanced intracellular delivery of antisense molecules
Innovative graft polymers designed for the efficient delivery of antisense molecules into biological cells and for maintaining the biological activity of these molecules while in serum and other aqueous environments are provided. Such polymers may comprise an anionic graft polymer comprising an anionic polymer backbone with pendant carboxylic acid groups and pendant chains comprising amphipathic or hydrophilic polymers covalently bonded to a portion of said pendant carboxylic acid groups.
Rutgers, The State University Of New Jersey
Method for the production of cyclic diesters, in particular dilactide
The present invention relates to a method for the production of cyclic carboxylic acid esters, in particular intramolecular lactones, such as e.g. Dilactide, the production of these cyclic esters from oligomeric carboxylic acids being effected by cyclising depolymerisation.
Uhde Inventa-fischer Gmbh
Process for production of aromatic amide carboxylic acid derivative
The invention provides a method for producing an aromatic amide carboxylic acid derivative represented by the following formula (2), including a step of reacting an aromatic amide halide derivative represented by the following formula (1) with carbon monoxide. In the following formulae (1) and (2), r1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; x1 represents a fluorine atom or a cyano group; x2 represents a halogen atom; and n represents an integer of from 0 to 3..
Mitsui Chemicals Agro, Inc.
Printable protective layer
Disclosed is a multilayer film comprising a first surface layer comprising a cross-linked, partially neutralized copolymer of ethylene and one or more α,β-unsaturated c3 to c8 carboxylic acid, and a second surface layer comprising a polyamide; a use of such multilayer film for, for example, decorating a substrate such as for example a ski, snowboard or skate board; as well as a ski comprising such coextruded multilayer film. Also disclosed is a process for decorating a substrate comprising coextruding a multilayer film comprising the first surface layer and the second surface layer comprising a polyamide; irradiating the coextruded multilayer film to cross-link the film; printing a decorative element on the second surface layer comprising a polyamide; cutting the multilayer film; contacting the second surface layer of the multilayer film with a surface to be decorated on a substrate; laminating, e.g., by heat, the multilayer film to the surface to be decorated..
E. I. Du Pont De Nemours And Company
System and recycling used oil
A method, in an embodiment, that includes receiving an oil having particulates and a first turbidity; selecting an agglomeration aid that includes a carboxylic acid; and mixing the oil with a sufficient quantity of the agglomeration aid for a sufficient time at a sufficient temperature so as to result in a product having a second turbidity of at least 25% less than the first turbidity.. .
Pressure-sensitive adhesive tape or sheet for application on skin
A pressure-sensitive adhesive tape or sheet for application on skin includes a substrate and a pressure-sensitive adhesive layer laminated on at least one surface of the substrate. The pressure-sensitive adhesive layer contains: 100 parts by weight of an acrylic copolymer prepared by copolymerizing a monomer mixture comprising from 5 to 38% by weight of an alkyl (meth)acrylate monomer, from 61 to 90% by weight of an alkoxy group-containing ethylenic unsaturated monomer and from 1 to 10% by weight of a carboxyl group-containing ethylenic unsaturated monomer; and from 30 to 60 parts by weight of a carboxylic acid ester in a paste form or liquid form at room temperature.
Nitto Denko Corporation
Drug delivery using electrochemically-triggered biodegradable electroactive materials
A biodegradable electroactive material can be doped with a drug and the drug can be delivered to a living subject by stimulating the material with an electrical potential. The material (in this case a polymer) has an electrochemically responsive oligoaniline block terminated with a carboxylic acid moiety and is linked to an alcohol-terminated diol by an ester bond.
University Of Florida Research Foundation, Incorporated
Methods of making silver nanoparticles and their applications
Disclosed herein is a method of making silver nanoparticles using an ascorbic acid derivative or an alpha-hydroxyl carboxylic acid derivative as a reducing agent. The silver nanoparticles may be coated onto micro particles, embedded in hydrogel particles or coated with polysaccharide.
Low volatility herbicidal compositions
The present invention relates generally low volatility herbicidal compositions comprising at least one auxin herbicide and at least one monocarboxylic acid, or monocarboxylate thereof. The invention further relates generally to methods for preparing and using such low volatility herbicidal compositions, including methods for controlling auxin-susceptible plant growth on agricultural and non-agricultural lands..
Monsanto Technology Llc
Near-infrared cut filter
There is provided a near-infrared cut filter which has a visible light transmitting property and a near-infrared shielding property both at high levels by that its transmission spectrum has a steep inclination in the vicinity of the boundary between the visible light and the near-infrared, and which can also be sufficiently reduced in size and thickness. The near-infrared cut filter has a near-infrared absorbing layer which contains a near-infrared absorbing dye containing at least one dye in which a condensed ring structure containing at least a benzene ring and a ring having nitrogen atom is bonded to both sides of a squarylium skeleton and which have a carboxylic acid amide structure at a second position of the benzene ring (where the carboxylic acid has a substituent having 5 to 25 having one or more branches), and a transparent resin with a refractive index of 1.45 or more..
Asahi Glass Company, Limited
Chelating agent-based self-diverting acidizing fluids and methods felating thereto
Methods, compositions and systems relating to complexing-acidizing treatment fluids. Some methods include: providing or preparing a complexing-acidizing treatment fluid having an acid concentration of about 0.6 molar, the complexing-acidizing treatment fluid including: an aminopolycarboxylic acid chelating agent, an aqueous base fluid, and an acid, placing the complexing-acidizing treatment fluid in a subterranean formation matrix penetrated by a well bore; allowing the acid to generate metal cations by dissolution of the subterranean formation matrix; reacting the aminopolycarboxylic acid chelating agent with the metal cations so as to form at least a plurality of aggregate blocking agents; and allowing the aggregate blocking agents to divert the complexing-acidizing treatment fluid to a main channel in the subterranean formation matrix that is distinct from a wormhole in the subterranean formation matrix..
Halliburton Energy Services, Inc.
Engine cleaning composition
This invention provides an engine cleaning composition for removing sediment formed in an engine. Such engine cleaning composition comprises: a dispersant containing a carboxylic acid and an amine; a chelating agent; a glycol solvent; and a naphthenic oil..
Toyota Jidosha Kabushiki Kaisha
It is provided that a polyester film containing a polyester resin obtained by recycling pet bottles and having high lamination strength and slight unevenness in thickness. A biaxially stretched polyester film comprising 50 wt.
Toyobo Co., Ltd.
High impact strength polymers
In an embodiment, a copolymer is formed from a monomer composition that includes a 2,2,4,4-tetraalkyl-1,3-cyclobutanediol monomer; one or more aromatic dicarboxylic acids, aromatic dicarboxylic diesters, and/or aromatic dicarboxylic anhydride; 1,3-propanediol or 1,4-butanediol; and 2,2-dimethyl-1,3-propanediol. In some embodiments, a copolymer is formed from a monomer composition that includes a 2,2,4,4-tetraalkyl-1,3-cyclobutanediol monomer, wherein at least 90% of the 2,2,4,4-tetraalkyl-1,3-cyclobutanediol monomer is in the cis- or trans-form..
Texas State University-san Marcos
Selective c-o bond cleavage of oxidized lignin and lignin-type materials into simple aromatic compounds
A method to cleave c—c and c—o bonds in β-o-4 linkages in lignin or lignin sub-units is described. The method includes oxidizing at least a portion of secondary benzylic alcohol groups in β-o-4 linkages in the lignin or lignin sub-unit to corresponding ketones and then leaving c—o or c—c bonds in the oxidized lignin or lignin sub-unit by reacting it with an organic carboxylic acid, a salt of an organic carboxylic acids, and/or an ester of an organic carboxylic acids.
Wisconsin Alumni Research Foundation
Method of producing lactone from hydroxycarboxylic acid or dicarboxylic acid in aqueous solution
A method of producing lactone by converting an aqueous solution including hydroxycarboxylic acid or dicarboxylic acid to lactone under an acid condition and in the presence of a water immiscible solvent.. .
Samsung Electronics Co., Ltd.
Hydrolysable linkers and cross-linkers for absorbable polymers
The present invention relates to the discovery of new class of linear and multiarmed hydrolysable linkers and cross linkers for use in the synthesis of biodegradable polymers such as, polyesters, polyurethanes, polyamides, polyureas and degradable epoxy amine resin. The linear and multiarmed hydrolysable linkers of the present invention include symmetrical and/or unsymmetrical ether carboxylic acids, amines, amide diols, amine polyols and isocyanates..
Bezwada Biomedical, Llc
Low-temperature route for precision synthesis of metal oxide nanoparticles
Methods for making metal oxide nanoparticles, including mixed metal oxides and core-shell metal oxide nanoparticles, are disclosed. A solution comprising a metal carboxylate and a carboxylic acid is combined with a solvent comprising an alcohol heated to a temperature ≦250° c.
University Of Oregon
Polycondensation catalyst for producing polyester and producing polyester using the same
The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on their surfaces either a coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of tio2 per 100 parts by weight of the solid base, or an inner coat layer of an oxide of at least one element selected from silicon, aluminum and zirconium or a composite oxide of at least two elements selected from silicon, aluminum and zirconium in an amount of from 1 to 20 parts by weight per 100 parts by weight of the solid base and an outer coat layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of tio2 per 100 parts by weight of the solid base, and wherein the solid base is hydrotalcite.. .
Sakai Chemical Industry Co., Ltd.
Pharmaceutical compositions comprising sorbitan esters
The present invention relates to a pharmaceutical composition comprising sorbitan esters of carboxylic acids that are useful for the delivery of anti-psychotic drugs.. .
Alkermes Pharma Ireland Limited
Solar cell module with a nanofilled encapsulant layer
A solar cell module comprising a solar cell layer and a sheet comprising at least one layer of a nanofilled ionomer composition, wherein the nanofilled ionomer composition comprises (1) an ionomer that is derived from a precursor α-olefin carboxylic acid copolymer wherein (a) the precursor α-olefin carboxylic acid copolymer comprises (i) copolymerized units of an α-olefin and (ii) about 20 to about 25 weight % of copolymerized units of an α,β-ethylenically unsaturated carboxylic acid; and (b) at least a portion of the total content of the carboxylic acid groups present in the precursor α-olefin carboxylic acid copolymer have been neutralized to form metal salts of the carboxylic acid groups; and (2) one or more nanofillers.. .
E.i. Du Pont De Nemours And Company
Base for artificial leather
A base body for an artificial leather includes an intertwined fiber body mainly including an ultrafine fiber having a 0.01 to 10 μm fiber diameter and an elastic polymer, the ultrafine fiber including, as a constituent polymer, a polyester obtained from a dicarboxylic acid and/or an ester-forming derivative thereof, and a diol, the polyester containing 15 to 500 ppm of a 1,2-propanediol-derived component.. .
Toray Industries, Inc.
Reducing agent, ink-jet recording apparatus, discharge printing method, image forming method, reducing agent stabilizing method, and reducing agent enhancing method
The present invention relates to a reducing agent containing thiourea dioxide. The reducing agent contains thiourea.
Brother Kogyo Kabushiki Kaisha
Continuous biotransformation of substituted aromatic carboxylic acids to their selective aldehydes and alcohols
The present invention discloses a novel method for biological reduction of the carboxylic acids to their corresponding aldehydes and/or alcohols with high productivity and high yield by using fungus in the category of basidiomycetes. This reduction is specific and selective for its functional group (—cooh), without affecting other functional group such as—r groups (—oh, —nh2, -alkyl, -alkyoxy) and their position, number on aromatic ring.
Privi Biotechnologies Private Limited
Micro-organism and methods of use
The invention relates to a micro-organism comprising a hydrogenase enzyme system which is capable of converting carbon dioxide into formic acid and a second enzyme system which is capable of converting formic acid into aliphatic carboxylic acids having a chain length of five or more carbon atoms. Also described are various methods for producing oil, as well as other aspects of the invention..
Verdant Bioproducts Limited
Novel hydrolase protein
It is an object of the present invention to provide a novel hydrolase, which is used when dialkyl 2-vinylcyclopropane-1,1-dicarboxylate is hydrolyzed with an enzyme, so as to efficiently obtain (1s,2s)-1-alkoxycarbonyl-2-vinylcyclopropanecarboxylic acid that is useful as an intermediate for synthesizing therapeutic agents for hepatitis c. According to the present invention, there is provided a hydrolase protein, which consists of the amino acid sequence shown in any one of seq id nos.
The present invention provides a lubricating oil composition comprising a lubricating base oil, and at least one ester additive selected from a first ester that is a fatty acid 3,4-epoxycyclohexyl alkyl ester and a second ester that is a 3,4-epoxycyclohexyl carboxylic acid alkyl ester, wherein a content of the ester additive is 0.01 to 5.0% by mass based on the total mass of the lubricating oil composition.. .
Jx Nippon Oil & Energy Corporation
Polymerizable composition, and cured article
According to the present invention, a polymerizable composition having excellent storage stability can be provided by adding an acid that serves as a stabilizing agent and a free-radical polymerization inhibitor to a polymerizable composition that contains a polythiol compound and an enic compound having a phenylthio backbone as monomer components. In the present invention, an embodiment in which the acid is at least one compound having a protonic-acid-type functional group which is selected from phosphoric acid, phosphonic acid, phosphinic acid, sulfonic acid, sulfoneimide and carboxylic acid is preferred..
Mitsubishi Gas Chemical Company, Inc.
Formulations of easily dispersible (ed) pigments comprising a combination of a carboxylic acid polymer and a non-ionic alkoxylated surfactant are disclosed. The combination is used in the formulation of a plurality of pigments.
Coating composition with trisamine functionalized dispersant
The present invention relates to a composition comprising a stable aqueous dispersion of polymer particles and a dispersant adsorbed onto the surfaces of tio2 particles, wherein the dispersant is a water-soluble polymer functionalized with structural units of a carboxylic acid ester and tris(hydroxymethyl)aminomethane. The composition of the present invention is particularly useful for achieving high hiding for paints containing associative thickeners..
Dow Global Technologies Llc
Semi-aromatic polyamide film
Disclosed is a semi-aromatic polyamide film including 98 to 90% by mass of a semi-aromatic polyamide (a) and 2 to 10% by mass of a thermoplastic elastomer (b). The semi-aromatic polyamide (a) includes a dicarboxylic acid mainly composed of terephthalic acid and a diamine mainly composed of an aliphatic diamine having 9 carbon atoms.
Aromatic polyamide and film-forming composition containing same
An aromatic polyamide, which is obtained by reacting a benzene tricarboxylic acid or a derivative thereof with a diamine compound in the presence of a terminally blocked compound having a crosslinkable group and a functional group that is reactive with a benzene tricarboxylic acid such as 1-amino-2-propanol or a derivative thereof as expressed by scheme (1), and which has a weight average molecular weight of 1,000-100,000 in terms of polystyrene as determined by gel permeation chromatography, has good solubility in organic solvents, while maintaining heat resistance and transparency. A thick film can be formed using a film-forming composition that contains this aromatic polyamide..
Nissan Chemical Industries, Ltd.
Method for producing modified epoxy(meth)acrylate resins, and the use thereof
A method is described for the production of modified epoxy (meth)acrylates, wherein organic compounds containing the epoxide groups are reacted with (meth)acrylic acid in the presence of a suitable catalyst, and after at least 80% of the epoxide groups have been reacted, the product is partially reacted with the anhydride of a saturated dicarboxylic acid. The epoxy (meth)acrylates which can be obtained in this manner can be used as binders in resin mixtures and reactive resin mortar compositions, for example for the purpose of chemical fastening..
Preparation polycyclohexylenedimethylene terephthalate resin having excellent color, and polycyclohexylenedimethylene terephthalate resin prepared by the same
A preparation method of a polycyclohexylenedimethylene terephthalate resin according to the present invention includes the steps of injecting a titanium compound and a germanium compound as catalysts to a mixture of a diol compound and dicarboxylic acid under stirring and performing esterification reaction and polycondensation reaction, in which the titanium compound is injected in a titanium atom content of 20 ppm or less, based on the weight of the final polycyclohexylenedimethylene terephthalate resin. The preparation method of the polycyclohexylenedimethylene terephthalate resin according to the present invention can be used to prepare a polycyclohexylenedimethylene terephthalate resin that has excellent degree of polymerization, color and light reflectance and has remarkably improved heat stability, and it is suitable to use the polycyclohexylenedimethylene terephthalate resin according to the present invention as an led housing material..
Sk Chemicals Co., Ltd.
Method for continuosly preparing biodegradable aliphatic polyester
Provided is a method of continuous production of a biodegradable aliphatic polyester including continuously performing an esterification reaction of a mixture including an aliphatic dihydroxy compound and aliphatic dicarboxylic acid at a temperature of 185° c. Or less to obtain an ester; continuously performing a first polycondensation reaction of the ester to obtain a preliminary polymer; and continuously performing a polycondensation reaction of the preliminary polymer.
S-enpol Co., Ltd.
High-mooney ndbr having mooney jump
3) then sulphur chlorides are added to the polymer, and prior to addition these sulphur chlorides are treated with a carboxylic acid, fatty acid and/or fatty acid ester.. .
Resin mixture based on epoxy(meth)acrylate resin, and the use thereof
The invention relates to a resin mixture having a modified epoxy (meth)acrylate resin as the base resin, and optionally at least one reactive diluent, at least one stabilizer, and at least one accelerator, wherein the modified epoxy (meth)acrylate resin can be obtained by reacting organic compounds having epoxide groups with (meth)acrylic acid, and then by the partial esterification of the β-hydroxyl-groups, the same formed during the reaction, with the anhydride of a saturated dicarboxylic acid, to reactive resin mortars containing the same, and to the use thereof for the purpose of chemical fastening, by means of which it is possible to manufacture products which are not subject to labeling requirements and which additionally provide high bond strength.. .
Self-assembling collagen-like polypeptide sequences for applications and uses related thereto
This disclosure relates to collagen like polypeptides, applications, and uses related thereto. In certain embodiments, the disclosure relates to collagen like polypeptides wherein hydroxy proline is substituted with amino proline and containing amino acids having side chains with carboxylic acids wherein the polypeptides are configured through electrostatic interactions of the amine and carboxylic acid groups to form solid structures.
Process for preparation of perindopril intermediate
The present invention relates to an improved process for the preparation of (2s,3as,7as)-1-[(2s)-2-[[(1s)-1-(ethoxycarbonyl)butyl]amino]3-s-oxopropyl]octahydro-1h-indole-2-carboxylic acid benzyl ester (the compound of formula ii) comprising reacting (2s,3as,7as)-octahydro-1h-indole-2-carboxylic acid phenylmethyl ester 4-methylbenzenesulfonate (the compound of formula iii) with n-[(s)-ethoxycarbonyl-1-butyl]-(s)-alanine (the compound of formula iv), using 1-hydroxybenzotriazole (hobt), dicyclohexylcarbodimide (dcc) and triethylamine in the presence of toluene as a solvent at a temperature of 5-40° c.. .
Piramal Enterprises Limited
Gas barrier laminate
Disclosed is a gas barrier laminate including a gas barrier layer (ii) laminated on a plastic substrate (i), wherein the plastic substrate (i) includes a metal compound in a content of 0.1 to 70% by mass and the gas barrier layer (ii) includes a polycarboxylic acid.. .
Degradable nanogel for drug delivery
A nano-sized hydrogel is made of a water-soluble chain containing carboxylic acid moieties and polyethylene side chains. Such a nanogel is applicable as a cancer-drug delivery agent or an imagining agent, where either a cancer drug, such as cisplatin, or an imaging agent, such as gd3+.
University Of Wyoming
Process for preparing aqueous dispersions
The invention discloses a process for preparing aqueous dispersions comprising the components (a) and (b) and optionally (c) or (d) or both, (a) a copolymer consisting of free-radical-polymerized c1- to c4-esters of acrylic or methacrylic acid and alkyl(meth)acrylate monomers with tertiary ammonium groups in the alkyl side groups, (b) 5 to 25% by weight, based on (a), of a c12- to c18-monocarboxylic acid or a c12- to c18-alcohol, (c) 0 to 10% by weight based on (a) of a dicarboxylic acid having 3 to 10 carbon atoms, (d) 0 to 20% by weight, based on (a), of an emulsifier having an hlb of at least 14 by dispersing the components in water where the water has a temperature of more than 40 and up to 85° c., where the solid content of the dispersion is from 5 to 40% by weight and where a clear colloidal dispersion is obtained in less than 30 min.. .
Evonik Industries Ag
Methods of using (+)-1,4-dihydro-7-[(3s,4s)-3-methoxy-4-(methylamino)-1-pyrrolidinyl]-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acid for treatment of antecedent hematologic disorders
Methods of treating, preventing or managing antecedent hematologic disorders, such as myelodysplastic syndrome, including chronic myelomonocytic leukemia are disclosed. The methods encompass the administration of sns-595.
Sunesis Pharmaceuticals, Inc.
Cosmetic compositions containing phenolic compounds
A method of photoprotecting a keratinous substrate comprising applying a composition onto the keratinous substrate, the composition comprising at least one phenolic compound chosen from at least one ortho-diphenol, at least one phenolic compound having a carboxylic acid moiety, and mixtures thereof; a compound chosen from at least one polyamine, at least one water soluble metal salt, and mixtures thereof; and a cosmetically acceptable carrier. The present disclosure also relates to photoprotective compositions for application onto hair and skin, the compositions comprising at least one phenolic compound chosen from at least one ortho-diphenol, at least one phenolic compound having a carboxylic acid moiety, and mixtures thereof; a compound chosen from at least one polyamine, at least one water soluble metal salt, and mixtures thereof; and a cosmetically acceptable carrier..
The present invention addresses the problem of, in an absorbent article, preventing the leakage of fiber constituting an absorbent core from a non-covered region through a liquid-permeable layer, said leakage possibly occurring when the strength of the absorbent core is decreased due to liquid absorption. To solve this problem, provided is a sanitary napkin which comprises a top sheet, a back sheet and an absorbent core that is interposed between the top sheet and the back sheet, wherein: the absorbent core, which involves a non-covered region where the constituting fiber is exposed on the surface and in contact directly with the top sheet, contains a thermoplastic resin fiber, said thermoplastic resin fiber containing as a monomer component an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride or a mixture thereof, at a mixing ratio by mass to a cellulose-based water absorbent fiber of 1/9 or more; and the wet fiber fall-off rate of the absorbent core is controlled to 13.3% or less..
Polymer dispersions and their use in pigmented coating compositions
A copolymer dispersion is described comprising a copolymer derived from a monomer mixture comprising: (a) 88.5 to 94% by weight of at least one vinyl ester of a saturated carboxylic acid; (b) 5 to 10.5% by weight of ethylene; (c) 0.5 to 5% by weight of at least one ethylenically unsaturated acid and/or an anhydride thereof and/or a salt thereof; and (d) 0.5 to 5% by weight of at least one ethylenically unsaturated monomer having at least one crosslinkable functional unit. The weight ratio of vinylester units to ethylene units in the copolymer is between 89:11 and 94:6 and the dispersion is stabilized with at least 1% by weight of an emulsifier, wherein the amounts of monomers and emulsifier refer to the total amount of monomers in the copolymer..
Celanese Emulsions Gmbh
Vinyl ester-based copolymer dispersions from a continuous tubular emulsion polymerization process
Disclosed are aqueous polymer dispersions which can be used as binders in paper coating compositions. Such dispersions are made using a continuous polymerization process involving a tubular reactor with a continuous loop section and a secondary line section and comprise a polymer of polymerized copolymers (a) a vinyl ester, (b) an ethylenically unsaturated mono or di-carboxylic acid or half ester of a di-carboxylic acid, and (c) a comonomer having a multifunctional moiety..
Celanese Emulsions Gmbh
Polyurethane coating material composition, multi-stage coating methods, and also the use of the coating material composition
Described are nonaqueous coating material compositions comprising (a) at least one polyhydroxyl group-containing compound, (b) at least one polyisocyanate group-containing compound having free or blocked isocyanate groups, (d) at least one amine-blocked phosphoric acid or phosphonic acid compound as a catalyst and (s) at least one monomeric aromatic optionally substituted carboxylic acid whose carboxyl group is in conjugation with a π-electron system, wherein the component (b) comprises at least one structural unit —nr—(x—sir″x(or′)3−x) (ii), and/or at least one structural unit —n(x—sir″x(or′)3−x)n(x′—sir″y(or′)3−y)m (iii). Also described are multistage coating methods, and use of the coating material compositions..
Basf Coating Gmbh
Functionalized polymer compositions and films formed from the same
The invention provides a composition comprising at least the following: a) an anhydride and/or carboxylic acid functionalized ethylene/alpha-olefin interpolymer having the following properties: i) a melt viscosity (177° c.) less than, or equal to, 200,000 cp, ii) a density from 0.855 to 0.900 g/cc; b) an ethylene-based polymer; and c) a polar polymer.. .
Dow Global Technologies Llc
Crystalline polyester resin, and binder resin dispersion for toner using same
The invention provides a crystalline polyester resin obtained by condensation polymerization of a mixture comprising a polycarboxylic acid component and a polyol component, present in a range such that the ratio of the number of carboxyl groups from the polycarboxylic acid component and the number of hydroxyl groups from the polyol component is in the range of 100:108 to 100:120, and having an acid value of 5 to 20 mgkoh/g, wherein the polycarboxylic acid component includes a c8-12 aliphatic dicarboxylic acid, the content ratio of carboxyl groups from the c8-12 aliphatic dicarboxylic acid is at least 90 mol % of the total amount of carboxyl groups from the polycarboxylic acid component, the polyol component includes a c8-12 aliphatic diol, and the content ratio of hydroxyl groups from the c8-12 aliphatic diol is at least 90 mol % of the total amount of hydroxyl groups from the polyol component.. .
Nicca Chemical Co., Ltd.
Golf ball resin composition and golf ball using the same
An object of the present invention is to provide a golf ball resin composition that comprises an ionomer resin with an excellent resilience and fluidity. Another object of the present invention is to provide a golf ball excellent in the resilience without lowering the durability significantly in a golf ball using the ionomer resin for the intermediate layer.
Dunlop Sports Co. Ltd.
Multicomponent crystalline system comprising nilotinib and selected co-crystal formers
The present invention relates to crystalline materials comprising nilotinib and a carboxylic acid, carboxylic acid ester, carboxylic acid amide or sulfonic acid as a co-crystal former, and to pharmaceutical compositions comprising said materials. The invention also relates to processes for preparing said crystalline materials and to methods of using said crystalline materials to treat a disease condition in which tyrosine kinase inhibition is beneficial..
Process for hydrogenation of esters of aromatic carboxylic acids to yield saturated homologues thereof
A process for the hydrogenation of substituted aromatic compounds, with particular reference to esters of aromatic carboxylic acids, for example of aromatic esters used commonly as plasticizers in polymers having wide commercial application (see, in particular, esters of phthalic acid and trimellitic acid).. .
Negative electrode for secondary battery and secondary battery including the negative electrode
A negative electrode for a secondary battery, the negative electrode including: a current collector; an interlayer on the current collector and consisting of at least one first polymer selected from a cation-substituted polycarboxylic acid and a copolymer thereof; a negative electrode active material layer on the interlayer and which includes a negative electrode active material and a binder.. .
Samsung Electronics Co., Ltd.
Lubricant comprising a mixture of an olefin-ester copolymer with an ethylene alpha-olefin copolymer
A lubricant composition comprising an oil of lubricating viscosity having a kinematic viscosity at 100° c. Of less than 15 mm2/s; and an esterified copolymer with a backbone comprising units derived from (i) an α-olefin monomer of at least 6 carbon atoms and (ii) an ethylenically unsaturated carboxylic acid or derivative thereof, optionally containing nitrogen functionality; and an ethylene α-olefin copolymer comprising greater than 5 weight percent ethylene monomer units, exhibits good operating efficiency when used to lubricate a mechanical device..
The Lubrizol Corporation
Hydroesterification process for producing biodiesel from wet microalgae biomass
The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (b) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (mu) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis.
Petroleo Brasileiro S.a. - Petrobras
Controllably degradable thermoplastic polyurethane
Controllably degradable overgrips are provided, as well as methods of producing controllably degradable thermoplastic polyurethane. Methods comprise pre-blending a catalyst on a matrix, dispersing a specified amount of the pre-blended catalyst throughout solid granular thermoplastic polyurethane to yield a polymer component, and determining an onset timing of hydrolytic breakdown of the polymer component by adjusting the specified amount of dispersed catalyst.
Eco Sports Llc.
Novel cross-linkers for hydrogels, hydrogels including these cross-linkers and applications thereof
The present invention relates to novel cross-linkers for hydrogels, in particular for hyaluronan hydrogels, corresponding hydrogels including said cross-linkers and various applications thereof. The cross linker of the invention is a bi- or multifunctional cross-linker comprising or consisting of an aromatic or heteroaromatic ring system with 3-6 c atoms which is coupled via functional groups on at least 2 ring positions with at least 2 terminal groups capable to form a covalent bond with thiol or amino groups, in particular with thiol groups in a thiol-en reaction.
Max-planck-gesellschaft Zur Foerderung Der Wissenschaften E.v.
Sulfonated co-polyesters and manufacturing
A method of forming a polymer includes polymerizing a first pre-polymer, produced by the reaction of a dicarboxylic acid, or ester thereof with a first alkylene diol; with a second pre-polymer produced by the reaction of an aromatic sulfonate or a salt thereof, or ester thereof, with a second alkylene diol; to form a metal sulfonate co-polymer; reacting the metal sulfonate co-polymer with a fast crystallizing polyester block having a degree of polymerization of at least about 20 to provide an amorphous sulfonated co-polyester; and crystallizing the amorphous sulfonated co-polyester to form a crystallized sulfonated co-polyester.. .
Ester Industries Limited
Epoxy resin system containing polyethylene tetraamines for resin transfer molding processes
A two-component curable epoxy resin system is disclosed. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol.
Dow Global Technologies Llc
Curing of aromatic carbodiimides
A method for polymerizing an aromatic multi-functional carbodiimide by contacting the aromatic multi-functional carbodiimide with a carboxylic acid salt at a temperature from 15° c. To 90° c..
Rohm And Haas Company
Production solid catalyst component for polymerizing olefins, catalyst for polymerizing olefins, and production polymerized olefins
A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high mfr, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds excluding an aromatic dicarboxylic acid diester into contact with each other to effect a reaction, followed by washing; a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing; and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction..
Toho Titanium Co., Ltd.
Process for the preparation of (1s,4s,5s)-4-bromo-6-oxabicyclo[3.2.1]octan-7-one
Which is a key intermediate in the synthesis of edoxaban, a compound that exhibits on inhibitory effect on activated blood coagulation factor x (also referred to as activated factor x or fxa), and is useful as a preventive and/or therapeutic drug for thrombotic diseases. The process includes reacting (1s)-cyclohex-3-ene-1-carboxylic acid of formula (ii) with a brominating agent selected from the group consisting of n-bromosuccinimide or 1,3-dibromo-5, 5-dimethylhydantoin in the presence of a base selected from calcium oxide or calcium hydroxide in a solvent selected from the group comprising of dicholoromethane, toluene, tetrahydrofuran, ethyl acetate, hexanes, cyclopentyl methyl ether (cpme) or a misture thereof to get (1s, 4s 5s)-4-bromo-6-oxabicyclo[3.2.1]octan-y-one of formula (1).
Method for producing cis-5-hydroxy-2-piperidinecarboxylic acid derivative, and purifying cis-5-hydroxy-2-piperidinecarboxylic acid
The present invention aims to provide a method for purifying cis-5-hydroxy-2-piperidinecarboxylic acid with high purity, and a method for producing its derivative. The present invention provides a method for producing a cis-5-hydroxy-2-piperidinecarboxylic acid derivative, which method comprises a step of converting cis-5-hydroxy-2-piperidinecarboxylic acid into a compound(s) of formula (1) and/or formula (2) (wherein r1 represents a protective group for an amino group, and r2 represents a c1-c6 alkyl group), and a method for purifying cis-5-hydroxy-2-piperidinecarboxylic acid..
Condensation product of theanine derivative and carboxylic acid coumarin derivative, its intermediate, preparation method and use thereof
Alicyclic dicarboxylic acid ester compound and manufacturing method thereof
Wherein r each independently represent an alkyl group having 1 to 4 carbon atoms.. .
Metal organic framework adsorbent for solar adsorption refrigeration
The metal organic framework adsorbent for solar adsorption refrigeration is a nanocomposite made from a metal organic framework matrix having carbon nanotubes incorporated therein. Preferably, the metal organic framework is composed of mil-100(fe), and the carbon nanotubes are functionalized with carboxyl (cooh) groups.
King Fahd University Of Petroleum And Minerals
Pharmaceutical composition containing luliconazole
Means for controlling the formation amount of a formed amide form in relation to a pharmaceutical composition containing luliconazole is provided. Disclosed is a pharmaceutical composition containing 1) luliconazole and 2) one component or two or more components selected from carboxylic acid and derivative thereof, ketone, phosphoric acid and derivative thereof, local anesthetic, antihistamine, and poe-based nonionic surfactant; wherein a content of an amide derivative of luliconazole is not more than 0.2% by mass with respect to a charged amount of luliconazole after storage at 60° c.
Nihon Nohyaku Co., Ltd.,
Method of production of the stable selenium-comprising pharmaceutical composition with a high selenium level
The present disclosure relates to the new method of producing of the stable selenium-comprising pharmaceutical compositions with a high selenium level based on the mixing of nitric acid with therapeutically effective amounts of at least two active ingredients selected from the groups consisting of 2,2-dichlorocarboxylic acids, selenium-containing compound. As a selenium-containing compound the aqueous solution of selenious acid in the amount of no more than 20%, preferably 0.5-10.0%, is used.
Obschestvos S. Ogranitchennoi Otvetstvennostju "oxygon"
Benzenetricarboxylic acid and methods of use
Methods of treating or preventing cancer and/or a neurodegenerative disorder in a subject are provided. The methods comprise administering to a subject a therapeutically effective amount of 1,2,3-benzenetricarboxylic acid or a hydrate or pharmaceutically acceptable salt thereof..
The present invention addresses the problem of, in an absorbent article, maintaining at a certain level or lower the difference between the dry flexural rigidity and wet flexural rigidity [(dry flexural rigidity)−(wet flexural rigidity)] at a bonding part. To solve this problem, provided is a sanitary napkin which comprises a top sheet, a back sheet, an absorbent body that is interposed between the top sheet and the back sheet and a compressed part that unites the top sheet and the absorbent body in the thickness direction, wherein: the absorbent body contains a cellulose-based water absorbing fiber and a thermoplastic resin fiber, said thermoplastic resin fiber containing as a monomer component an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride or a mixture thereof; and the difference between the dry gurley stiffness and wet gurley stiffness of the compressed part is maintained at 2.5 mn/12.5 mm or lower..
Thiazol-4-carboxylic acid esters and thioesters as plant protection agents
R1, r2, r3, r4, r5, r6, r7, y1, y2, y3, w, x and g have the meanings given in the description, and also of agrochemically active salts thereof, as fungicides.. .
Highly luminescent nanostructures and methods of producing same
Highly luminescent nanostructures, particularly highly luminescent quantum dots, are provided. The nanostructures have high photoluminescence quantum yields and in certain embodiments emit light at particular wavelengths and have a narrow size distribution.
Electrolytic solution for electrolytic capacitor, and electrolytic capacitor
Provided is an electrolytic solution suitable for use in a 100 wv class electrolytic capacitor having low inductance at low temperatures and high durability in high-temperature use conditions. This electrolytic solution for an electrolytic capacitor contains: a mixed organic solvent including sulfolane and y-butyrolactone; water; an electrolyte selected from the group consisting of a quaternized pyridinium salt of carboxylic acid and a quaternized imidazolinium salt of carboxylic acid; boric acid; and mannitol; and has a mass ratio of boric acid and mannitol in the range of 1:1.2 to 1:1.6, and a total amount of boric acid and mannitol of 10.0 to 14.5% by mass of the total electrolytic solution, the water content being 1.5 to 2.0% by mass of the total electrolytic solution..
Nippon Chemi-con Corporation
Polyester resin for toner, toner for electrostatic charge image development, and toner cartridge
There is provided a polyester resin for a toner, which is a polycondensate of (a) a polycarboxylic acid component and a polyol component including (b) polyol represented by the specific general formula and (c) a chain-like aliphatic polyol, wherein the total amount of (b) the polyol represented by the specific general formula and (c) the chain-like aliphatic polyol is 60 mol % to 100 mol % in the entire alcohol components, and the molar ratio ((b)/(c)) of (b) the polyol represented by the specific general formula to (c) the chain-like aliphatic polyol is 0.1 to 1.0.. .
Fuji Xerox Co., Ltd.
Method and device for carboxylic acid production
A multi-compartment electrolysis cell includes an anodic compartment, a cathodic compartment, and a solid alkali ion transporting membrane (such as a nasicon membrane). An anolyte is added to the anodic compartment.
Dicarboxylic acid production by fermentation at low ph
The present invention relates to a process for the production of a dicarboxylic acid. The process comprises fermenting a yeast in the presence of a carbohydrate-containing substrate and low amounts of oxygen at a ph value at which at least 50% of the dicarboxylic acid is in the acid form.
Dsm Ip Assets B.v.
Method of producing unsaturated acid from salt of hydroxycarboxylic acid
A method of producing an unsaturated acid from a salt of a hydroxycarboxylic acid, the method includes providing an aqueous solution including a salt of a hydroxycarboxylic acid; adding a solvent with a boiling point of 200° c. Or higher to the aqueous solution; and heating the aqueous solution at a temperature lower than the boiling point of the solvent to split a salt from the salt of the hydroxycarboxylic acid while simultaneously dehydrating the hydroxycarboxylic acid, thereby converting the hydroxycarboxylic acid to the unsaturated acid..
Samsung Electronics Co., Ltd.
Lubricating composition including esterified copolymer and method
A lubricating composition includes an (a) esterified copolymer comprising units (a1) derived from a vinyl monomer and units (a2) derived from a carboxylic acid monomer, the vinyl monomer comprising a vinyl aliphatic monomer, the carboxylic acid monomer comprising an ethylenically unsaturated carboxylic acid or derivative thereof, esterified with a primary alcohol; and (b) an oil of lubricating viscosity. The lubricating composition can provide a lubricant with at least one (or at least two, or all) of acceptable or improved hths, kv, shear stability, acceptable or improved viscosity index control, and acceptable or improved low temperature viscosity..
The Lubrizol Corporation
Fuel additive for diesel engines
In accordance with the disclosure, exemplary embodiments provide a method for improving injector performance, a method for restoring power to a diesel fuel injected engine, and a method of operating a fuel injected diesel engine. The method includes combining a fuel with a reaction product derived from (i) a hydrocarbyl substituted dicarboxylic acid or anhydride, wherein the hydrocarbyl substituent has a number average molecular weight ranging from about 600 to about 800 and (ii) a polyamine includes a compound of the formula h2n—((chr1—(ch2)n—nh)m—h, wherein r1 is hydrogen, n is 1 and m is 4, wherein a molar ratio of (i) reacted with (ii) ranges from about 1.3:1 to about 1.6:1.
Afton Chemical Corporation
Highly luminescent nanostructures and methods of producing same
Highly luminescent nanostructures, particularly highly luminescent quantum dots, are provided. The nanostructures have high photoluminescence quantum yields and in certain embodiments emit light at particular wavelengths and have a narrow size distribution.
Foamed chelating agent treatment fluids for use in subterranean matrix stimulations and subterranean and surface cleanout operations
Treatment fluids and methods include a method that includes the steps of providing or preparing a foamed chelating agent treatment fluid that includes: an aminopolycarboxylic acid chelating agent, an aqueous base fluid, a gas, and a foaming agent, and lacing the foamed chelating agent treatment fluid in a subterranean formation penetrated by a well bore. The aminopolycarboxylic acid chelating agent foamed fluids may also be used in equipment clean-out operations..
Halliburton Energy Services, Inc.
An adhesive composition comprises an aqueous dispersion of a polymer comprising at least one vinyl ester of a carboxylic acid having up to 20 carbon atoms; and a plasticizer comprising an ester of a polyol and a linear or branched aliphatic monocarboxylic acid having 3 to 20 carbon atoms in the molecule.. .
Celanese Emulsions Gmbh
Blocked bio-based carboxylic acids and their use in thermosetting materials
This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition.
Ndsu Research Foundation
Carboxylic acid-modified nitrile-based copolymer latex composition and dip molded article including the same
The present invention relates to a carboxylic acid-modified nitrile-based copolymer latex composition and a dip molded article including the same, the composition including: a carboxylic acid-modified nitrile-based copolymer latex having a glass transition temperature of −30 to −20° c.; and a bentonite dispersion solution. The dip molded article using the carboxylic acid-modified nitrile-based copolymer latex composition according to the present invention has high tensile strength and excellent wearable sensation, and thus the dip molded article may be usefully applied to dip molded latex articles such as surgical gloves, checkup gloves, a condom, a catheter, industrial gloves, household gloves, or health care articles..
Lg Chem, Ltd.
Method of producing polyimide resin, producing polyimide coating, producing polyamic acid solution, polyimide coating, and polyamic acid solution
A method of producing a polyimide resin that produces a polyimide resin having excellent heat resistance and mechanical properties, and having a low dielectric constant even when heat-treated at a lower temperature. The method includes heating at 120° c.
Tokyo Ohka Kogyo Co., Ltd.
Polyimide formed from at least one dianhydride and at least one diamine, wherein at least 50 wt. % of the diamine is comprised of dimer fatty diamine, and a process of making the polyimide.
Croda International Plc
Method for the synthesis of alpha-aminoalkylenephosphonic acid
A method for the synthesis of alpha-aminoalkylenephosphonic acid or its phosphonate esters including the steps of forming a reaction mixture by mixing a p—o—p anhydride moiety including a compound, having one p-atom at the oxidation state (+iii) and the other p-atom at the oxidation state (+iii) or (+v), an aminoalkanecarboxylic acid and an acid catalyst, wherein the reaction mixture includes an equivalent ratio of alpha-aminoalkylene carboxylic acid to p—o—p anhydride moieties of at least 0.2, and recovering the resulting alpha-aminoalkylene phosphonic acid compound or an ester thereof from the reaction mixture.. .
Straitmark Holding Ag
Silicon-containing carboxylic acid derivative
A compound represented by the formula (i) [at least one of r1, r2, and r3 represents a cyclic alkyl group, the remaining represents a linear or branched alkyl group; n represents 0 or 1; r4 represents an amino group or —(cx2)m—cooh (m represents 0 to 3, and x represents hydrogen atom); and r5 represents —(cy2)p—coor6 (p represents 0 to 3, y represents hydrogen atom, and r6 represents hydrogen atom or an alkyl group)], or a salt thereof.. .
6-substituted phenoxychroman carboxylic acid derivatives
In which a1, a2, w, l, g, r7a, r7b, r8, r9 and r10 have the meanings given in the specification, which are dp2 receptor modulators useful in the treatment of immunologic diseases.. .
Most effective process for base-free preparation of ketone intermediates usable for manufacture of nebivolol
Comprising the steps of: activation of a carboxylic acid by using a peptide coupling agent, coupling of the activated carboxylic acid with a malonic acid derivative providing a β-ketoester precursor and converting the β-ketoester precursor to the ketone of the general formula 1.. .
2-substituted-2h-1, 2, 3-triazole derivative and its preparation method
Disclosed is a 2-substituted-2h-1,2,3-triazole derivative, a compound as represented by formula i or ii. Also disclosed is a preparation method of the compound as represented by formula i or ii, in particular to a preparation method of 2-substituted-4-bromo-5-chloro-1h-1,2,3-triazole, 2-substituted-4-bromo-5-iodo-1h-1,2,3-triazole, and 2-substituted-5-chloro-1h-1,2,3-triazole-4-carboxylic acid.
Aba Chemicals Corporation
1, 3-butadiene-separating material, and separation method using said separating material
The invention separating material and separation method make it possible to separate and collect 1,3-butadiene selectively from a mixed gas containing 1,3-butadiene and a c4 hydrocarbon other than 1,3-butadiene. A separating material capable of adsorbing 1,3-butadiene selectively includes: a dicarboxylic acid compound (i) represented by formula (i) (wherein r1, r2, r3 and r4 independently represent a hydrogen atom, an alkyl group or the like); a metal ion such as a zinc ion and a cobalt ion; and a metal complex having such a structure that multiple pseudo-diamondoid frameworks are intruded mutually, wherein each of the pseudo-diamondoid frameworks comprises an organic ligand (ii) that is represented by formula (ii) (wherein x represents —ch2—, —ch2—ch2—, —ch═ch— or the like; and r5, r6, r7, r8, r9, r10, r11 and r12 independently represent a hydrogen atom, an alkyl group or the like) and is capable of being bidentately coordinated with the metal ion..
Showa Denko K.k.
Alkali-activated aluminosilicate binder with superior freeze-thaw stability
We herewith propose the use of at least one nitrogen-containing organic compound and/or a salt thereof in combination with at least one aromatic carboxylic acid and/or a salt thereof for improving the freeze-thaw stability of an alkali-activated aluminosilicate binder, and a preferred alkali-activated aluminosilicate binder comprising ε-caprolactam and sodium benzoate as freeze-thaw stabilizers.. .
Construction Research & Technology Gmbh