|| List of recent Ethane-related patents
| Integrated negative pressure bandages|
An integrated negative pressure bandage is constructed with a non-woven polyurethane matrix pad secured on the outside surface to a sheet of polyurethane film formed with an outer adhesive boundary to establish a seal against the skin of the patient around the wound site. The integrated negative pressure bandage is applied to a patient having said wound by removing said release member and attaching said adhesive layer exposed by the removal of said release member to said patient such that said adhesive layer is sealed to the patient around said wound with said non-woven polymer matrix pad being positioned over said wound, and attaching said connector port to said source of negative pressure.
| Purification method and purification system for propane|
[solution] water, carbon dioxide, at least one of ethane and propylene, and at least one of isobutane and normal butane present in low-purity propane in a gaseous phase are adsorbed by means of a zeolite molecular sieve that preferentially adsorbs water and carbon dioxide over propane, an activated carbon molecular sieve that preferentially adsorbs ethane and propylene over propane, and activated carbon that preferentially adsorbs isobutane and normal butane over propane. Propane is condensed in a state in which nitrogen and oxygen are maintained in a gaseous state by introducing the low-purity propane in a gaseous phase into a partial condenser.
| Dehydroxylation of polyether polyols and their derivatives using a halogen-based catalyst|
Polyether polyols, derivatives and combinations thereof are converted to olefins under reductive or non-reductive dehydroxylation conditions, in the presence of a halogen-based catalyst. Derivatives include polyether polyols incorporated in polyurethanes.
| Process for preparing levomilnacipran hcl|
The invention relates to one-pot process for preparing (1s,2r)-1-phenyl-1-(n,n-diethylaminocarbonyl)-2-aminomethylcyclopropane of formula (i) comprising the step of reacting (1s,2r)-n,n-diethyl-2-(hydroxymethyl)-1-phenylcyclopropanecarboxamide successively with the following reactants 1) triethyl orthoformate and methanesulfonic acid or triethylamine and methanesulfonyl chloride, 2) a phthalimidating agent, 3) aqueous etnh2, wherein the reaction is carried out in toluene. In another aspect the invention concerns a process for preparing (1s,2r)-n,n-diethyl-2-(hydroxymethyl)-1-phenylcyclopropanecarboxamide trough a step of crystallization of (1s,5r)-1-phenyl-3-oxabicyclo[3.1.0]hexan-2-one..
| Biostable polyurethanes|
The present invention relates to a biostable polyurethane or polyurea comprising: (a) a soft segment comprising a polysiloxane of the general formula (i); and (b) greater than o and less than 40 wt % of a hard segment which is a reaction product of a diisocyanate and a linear difunctional chain extender, processes for their preparation and their use in the manufacture of biomaterials, devices, articles or implants.. .
| Bismuth-containing catalyst for polyurethane compositions|
Invention relates to bismuth-containing catalysts, obtainable by reacting at least one bismuth(iii) salt or bismuth(iii) complex with at least one 1,3-ketoamide with the formula (i). Such complex compounds are suited in particular as catalysts for one- and two-component polyurethane compositions.
| Method for making waterborne polyurethane with a reactive functional group and a nanocomposite made of the same|
Wherein idd was synthesized by methylenedi-p-phenyl diisocyanate and isobutyryl chloride using triethylamine as catalyst.. .
| Powder coating composition|
A powder coating composition includes fluoro-modified polyurethane (meth)acrylate. The fluoro-modified polyurethane (meth)acrylate is prepared from an isocyanate component, a hydroxy-c2-c4-alkyl (meth)acrylate and an alcohol component comprising a perfluoroalkyl alcohol that are reacted stoichiometrically with one another, providing the powder coating composition a fluorine content (calculated as elementary fluorine with molecular mass 19) in a range of about 0.1 to about 3 wt %, the wt % based on the total weight of the powder coating composition the powder coating composition based on the fluoromodified polyurethane (meth)acrylate provides a highly improved flow, chemical resistance and particularly an improved and sustainable self-cleaning effect of the coatings..
| Controllably degradable thermoplastic polyurethane and overgrips made therefrom|
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.
| Novel phosphonamidates-synthesis and flame retardant applications|
A group of novel compounds containing one or more amino substituted dopo (9,10-dihydro-9-oxa-phosphaphenthren-10-oxide) moieties. The compounds were found to have good flame retardant properties and also good thermal stability, which makes them particularly suitable as flame retardant additives for various thermoplastic polymers.
| Thermoset polyurethane foam containing brominated polymeric flame retardant|
Prepare a thermoset polyurethane foam containing a brominated polymer with aliphatic bromine as a flame retardant.. .
| Cleansing compositions with polyurethane-34|
A cleansing composition comprising a cleansing effective amount of surfactant and polyurethane-34. The polyurethane-34 can deposit on skin during cleansing and form a barrier that reduces bacterial attachment to skin..
| Comfort molded bra cup|
A brassiere having molded bra cups that have been factory-molded into predetermined cup size and shape, made of a mechanically frothed flexible shape memory molded elastomer, and having a polyurethane gel applied to or infused into the inside of the cup or around the underwire area to create a cooling sensation for the wearer.. .
| Composite fiber, method for producing polyurethane elastomer fabric, and polyurethane elastomer fabric|
Provided is a composite fiber capable of forming a fabric giving a good wearing feeling to a human body. This composite fiber is composed of a polyurethane elastomer having a glass transition temperature of 15 to 50° c.
| Aqueous polyurethane dispersion for waterproof breathable coatings|
Aqueous polyurethane dispersion for waterproof breathable coatings an aqueous polyurethane dispersion comprises a polyurethane polymer obtainable by the reaction of an isocyanate-functional polyurethane prepolymer a) with an isocyanate-reactive component b), wherein the isocyanate-functional prepolymer a) is obtainable by the reaction of a mixture comprising: a polyol component comprising a polyester polyol obtainable by the reaction of a mixture comprising an aliphatic dicarboxylic acid and at least one diol selected from the group consisting of linear aliphatic diols and a branched aliphatic diols; and a polyisocyanate component comprising ≧50 weight-%, based on the total weight of polyisocyanates, of dicyclohexylmethane diisocyanate. The isocyanate-reactive component b) comprises a compound comprising sulfonate groups which is employed in an amount of ≧3.5 weight-% to ≦10 weight-%, based on the total weight of the polyol component, the polyisocyanate component and the isocyanate-reactive component b).the invention also concerns the use of such an aqueous polyurethane dispersion for coatings, a method of manufacturing a coated substrate and to a coated substrate..
| Toner, developer, and image forming apparatus|
To provide a toner for developing an electrostatic image, the toner including toner particles, wherein the toner particles contain: a non-crystalline resin a; and a crystalline resin, wherein the crystalline resin contains a crystalline resin c containing a urethane bond, or a urea bond, or both thereof, and wherein the toner particles each have a sea-island structure, where the resin c is dispersed in the non-crystalline resin on a cross-section of the toner particle.. .
| Electrophotographic photosensitive member, method of producing the same, process cartridge, and electrophotographic apparatus|
An electrophotographic photosensitive member includes an undercoat layer containing a silane coupling agent having a divalent group represented by —nh— and an urethane resin. The modulus of elastic deformation (we/wt) of a surface of the undercoat layer satisfies formula (x), where the modulus of elastic deformation is measured by a universal hardness test..
| Structurally stable active material for battery electrodes|
A process of producing active material for an electrode of an electrochemical cell includes providing lithium-intercalating carbon particles having an average particle size of 1 μm to 100 μm as component 1, providing silicon particles having an average particle size of 5 nm to 500 nm as component 2, providing a polymer or polymer precursor which can be pyrolyzed to form amorphous carbon and is selected from the group consisting of epoxy resin, polyurethane resin and polyester resin, as component 3, mixing components 1 to 3 in to a mixture and heat treating the mixture substatually in the absence of atmospheric oxygen at a temperature at which the pyrolyzable polymer or the pyrolyzable polymer precursor decomposes to form amorphous carbon.. .
| Adhesive bond using different adhesives|
A method for adhesively bonding shaped elements made from wood-based materials to flexible film substrates, in which i) the side that is to be bonded is mechanically processed, ii) a reactive one- or two-component polyurethane adhesive is applied to the center regions of this side, iii) an aqueous adhesive based on eva, pvac, pvoh is applied at least to the outer region of this side, and iv) this side is bonded to a flexible substrate as an edge coating.. .
| Thermoplastic polyurethane from low free monomer prepolymer|
Thermoplastic polyurethane (tpu) made using low free isocyanate monomer (lf) prepolymer, for example a prepolymer based on p-phenylene diisocyanate (ppdi) with low free isocyanate content, possess unique performance features including exceptional tear strength, low compression set, and an exceptional overall balance of physical properties including high temperature mechanical strength.. .
| Layered structures and articles prepared therefrom|
The invention provides a layered structure comprising at least two layers: a) a first layer a, formed from a composition a, comprising a polyurethane; and b) a second layer b, formed from a composition b, comprising at least one functionalized polymer b comprising the following: i) at least one polymerized monomeric unit comprising a functional group selected from the group consisting of the following: a) an acid group, b) an anhydride group, c) a primary or secondary amine group, and d) combinations thereof; or ii) at least one reacted functionalization agent comprising a functional group selected from the group consisting of the following: e) an acid group, f) an anhydride group, g) a primary or secondary amine group, and h) combinations thereof; or iii) combinations thereof; and wherein the functionalized polymer b has a number-average molecular weight greater than 1,000 g/mole, and/or a melt index (i2) less than, or equal to, 2500 g/10 min.. .
| Solid pharmaceutical composition comprising an antibiotic from the quinolone family and method of production thereof|
The invention also includes a process for obtaining a solid pharmaceutical composition comprising, as an active ingredient, an antibiotic from the quinolone family, with said process comprising the steps of: (a) mixing and homogenizing the active ingredient and dry excipients in the granulator, i.e., at least one diluent and at least one disintegrant; (b) dissolving at least one binder in an organic solvent selected from the group consisting of isopropyl alcohol, acetone, ethanol, dichloromethane or mixtures thereof; (c) granulating the dried mixture of step (a) with the solution of step (b); (d) sorting and drying the granules of step (c) at a suitable temperature; (e) sorting the dried granulate; (f) mixing and homogenizing the granules of step (e) with an additional amount of disintegrant to obtain the composition of the invention.. .
| Cosmetic composition carrier containing urethane foam layer structure|
Disclosed are a cosmetic composition carrier containing a urethane foam layer structure, and cosmetics including the cosmetic composition carrier that contains a cosmetic composition.. .
| Hydroxy amino polymer and use thereof in polyurea/polyurethane tissue adhesives|
Wherein the ratio of added amino groups to hydroxyl groups in a hydroxy amino polymer is at least 0.6. Furthermore, the invention relates to a hydroxy amino polymer, which can be achieved according to this process as well as a polyurea/polyurethane system, which contains such a hydroxy amino polymer..
| Associative thickeners based on hyperbranched polymers|
The present invention relates to associative polyurethane thickeners which comprise hyperbranched polymers in polymerized-in form, to the preparation of these thickeners, and to the use thereof, particularly in cosmetic preparations.. .
| Low cost, fast curing optical fiber coatings|
A low cost composition that cures rapidly and which is suitable for coating an optical fiber comprises at least one ethylenically unsaturated monomer; at least one photoinitiator; and at least one non-radiation-curable polar polymer having pendent groups that facilitate low energy chemical bonding, hydrogen bonding, dipolar interactions or other interactions with radical compounds formed during polymerization of the monomer. The non-radiation-curable polar polymer(s) are inexpensive and reduce and/or eliminate the need for expensive urethane acrylate oligomers, without sacrificing properties, and while achieving rapid cure speeds..
| Photochromic composition|
A photochromic composition functions as an adhesive layer for bonding optical sheets or films made from a polycarbonate resin or the like, and can be used to produce a laminated sheet that exhibits excellent adhesive properties, heat resistance, photochromic properties, and perspiration resistance. The photochromic composition includes (a) a polyurethane-urea resin having a urea bond in a molecular chain, in which a tetrahydrofuran insoluble content is 20.0 to 90.0 wt %; and (b) a photochromic compound..
| Method and composition for filling elongated channels with expanding foam insulation|
The invention described herein generally pertains to the use of low boiling point, low vapor pressure blowing agents with froth polyurethane or polyisocyanurate foams to fill hollow cavities (particularly window lineals) and which have lowered exotherms, which prevent deformation of the hollow cavity (e.g., window lineal) and additional achieve filling of longer lengths of window lineals by increasing the foaming and gel times of the reaction.. .
| Method for determining the content of organic silicon compounds in anthropogenic and/or biogenic gases containing methane|
The aim of the invention is to provide a solution by means of which the content of organic silicon compounds in anthropogenic and/or biogenic gases containing methane can be determined in the simplest and most reliable manner possible using a method for determining the content of organic silicon compounds in anthropogenic and/or biogenic gases containing methane, such as biogases, sewer gases, and landfill gases. The aim is achieved by using ion mobility spectrometry as a measurement method, wherein the anthropogenic and/or biogenic gas containing methane is used as a measurement gas..
| Method for minimizing emissions while forming a polyurethane foam|
A method minimizes emissions while spraying a mixture of a resin composition and a polyisocyanate onto a surface. The resin composition has a hydroxyl content of at least 400 mg koh/g and includes a blowing agent that is a liquid under pressure, a first polyol, at least one additional polyol other than the first polyol, and optionally a catalyst, surfactant, and water.
| Apparatus for protecting electronic devices and methods of making and using the same|
The present invention relates to an apparatus for protecting electronic devices from excessive drops. Specifically, the apparatus is designed to protect iphones, ipads, ipods, or similar electronic devices.
| Photocatalytic co2 reduction system|
A system employing sunlight energy for reducing co2 into methane and water is disclosed. The system may include the use of a photoactive material including plasmonic nanoparticles and photocatalytic capped colloidal nanocrystals (pccn).
| Enhanced coal-bed methane production|
Methods and systems for enhanced recovery of coal bed methane are described. A method includes generating a diluent gas mixture comprising n2 and co2 in a semi-closed brayton cycle power plant, injecting at least a portion of the diluent gas mixture into a coal bed, and recovering a mixed production gas comprising methane from the coal bed..
| Method for producing silicon foam using dissimilar materials|
A method for producing a silicon foam using dissimilar materials is disclosed. The method includes partially melting one side of a polyurethane foam using a torch to give the one side adhesiveness, attaching a non-woven fabric to the one side of the polyurethane foam having the adhesiveness, pressing a composite foam of the polyurethane foam and the non-woven fabric using a pressure roller to easily bond them, producing a breathable composite foam having dissimilar materials of the polyurethane foam and the non-woven fabric, impregnating the composite foam having the dissimilar materials with a silicon solution, pressing the composite foam using a pressure roller to control an amount of the silicon solution impregnating the composite foam, and hot-air drying the composite foam while the composite foam passes through a dryer..
| Solar cell module|
A solar cell module is provided with a solar cell, a first protection member, a second protection member, and a sealing material. The first protection member is disposed at a first side of the solar cell.
| Process for dissolving an oxide layer|
The invention relates to a process for dissolving a chromium, iron, nickel, zinc and radionuclides containing oxide layer, in particular for breaking down oxide layers deposited on inner surfaces of systems and components of a nuclear power plant, by means of an aqueous decontamination solution containing methanesulfonic acid, which flows in a loop, wherein in regular intervals small amounts of permanganic acid are added, and following reaction of the permanganic acid a second loop is added on in bypass and the dissolved cations and anions are removed by ion-exchange resins from the decontamination solution.. .
| Electronic cigarette|
An electronic cigarette is provided, including a battery sleeve and a lamp cap mounted at one end of the battery sleeve, wherein, the lamp cap includes a contact surface sleeved in the battery sleeve, and at least one strip configured to increase friction is formed on the contact surface. The invention of electronic cigarette, uses flexible materials including rubber, thermoplastic polyurethane, polyvinyl chloride (pvc) to make soft lamp cap, and the lamp cap includes a contact surface sleeved in the battery sleeve, the strip is configured to increase the friction of the contact surface, the lamp cap and the battery sleeve are fixedly connected with each other by interference fit, which effectively avoids the lamp cap falling off from soft battery sleeve, and simulate the soft feel of real cigarettes, thus, the users' experience is enhanced,.
| Multi-polymer grip member|
A grip member and a method of making such a grip member including at least a polymerized region with two or more polymers. The first and second polymers cooperate to each form a portion of the top surface of the region.
| Methods for separating hydrocarbon gases|
The present invention relates to a process for separating a hydrocarbon gas into a fraction containing a predominant portion of the methane or ethane and lighter components and a fraction containing a predominant portion of the c2 or c3 and heavier components in which process the feed gas is treated in one or more heat exchange, and expansion steps; partly condensed feed gas is directed into a separator wherein a first residue vapor is separated from a c2 or c3-containing liquid; and c2 or c3-containing liquids, at substantially the pressure of separation, are directed into a distillation column wherein said liquid is separated into a second residue is separated to recover a c2 or c3-containing product. The foregoing process is improved by cooling said second residue to partially condense it..
| Multilayer mattress|
A multilayer mattress comprising a top polyurethane polyether reticulated foam layer; a middle polyurethane polyether reticulated foam layer; and a bottom support layer. The top layer has an open-cell structure, a thickness of 1.5-5 cm, a compression resistance of 1-5.5 kpa and a resilience of 40-55%; whereas the middle layer has an open-cell structure, a thickness of 2.5-7.5 cm, a compression resistance of 1-5.5 kpa and a resilience of 1-15%..
| Sun towel|
The invention disclosed provides an improved sun towel with added features to be used by beachgoers, picnickers, and the like. The topside comprised of soft pile terrycloth to provide comfort and absorbance, and the backside comprised of a polyurethane film backing to repel moisture from underneath.