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Acid Anhydride

Acid Anhydride-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Nonaqueous electrolyte solution for secondary batteries and secondary battery provided with same
Stella Chemifa Corporation
February 01, 2018 - N°20180034102

A nonaqueous electrolytic solution exhibits excellent storage characteristics even in high-temperature environments. The solution for the secondary battery includes at least one of boron complex salts, boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode ...
Polyamide composition including hollow glass microspheres and articles and methods relating to the same
3m Innovative Properties Company
February 01, 2018 - N°20180030270

The composition can include a polyamide, hollow glass microspheres having amino groups on at least a portion of their surfaces, and an impact modifier comprising at least one of polyolefin units or polydiene units and at least one of carboxylic acid or carboxylic acid anhydride functional groups. The composition can include a matrix of a polyamide modified with an impact ...
Process for preparing an esterified cellulose ether in the presence of an aliphatic carboxylic acid
Dow Global Technologies Llc
February 01, 2018 - N°20180030158

A process for preparing an ester of a cellulose ether comprises the steps of reacting a cellulose ether with a dicarboxylic acid anhydride or with a combination of a dicarboxylic acid anhydride and an aliphatic monocarboxylic acid anhydride, wherein the esterification is conducted i) in the absence of an esterification catalyst or in the presence of no more than 0. 1 mole ...
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Medical/cosmetic material and adhesion preventing material
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
January 25, 2018 - N°20180021482

There is provided a medical/cosmetic material that retains the properties which are inherent in a polyanionic polysaccharide being a raw material, that has a high level of safety because there is no need to use a chemical crosslinking agent during production, and that makes it possible to place a powder of a water-insoluble polyanionic polysaccharide at an affected area ...
Medical material and anti-adhesion material
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
January 25, 2018 - N°20180021477

There is provided a medical material that retains the properties which are inherent in a polyanionic polysaccharide being a raw material, that has a high level of safety because there is no need to use a chemical crosslinking agent during production, and that has a moderate strength with which a suture and the like can be conducted. The medical material ...
Nonaqueous electrolyte solution for secondary batteries and secondary battery provided with same
Stella Chemifa Corporation
January 18, 2018 - N°20180019498

A nonaqueous electrolytic solution for a secondary battery exhibits excellent cycle characteristics even in high-temperature environments. The solution includes at least one of boric acid esters, acid anhydrides, cyclic carbonates having an unsaturated bond, cyclic carbonates having a halogen atom, cyclic sulfonic acid esters, and amines having an acetoacetyl group. A secondary battery having a positive electrode and a negative ...
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Saponified ethylene-vinyl ester copolymer resin composition, resin tube for high-pressure gas or resin liner for ...
The Nippon Synthetic Chemical Industry Co., Ltd.
January 18, 2018 - N°20180016430

The present invention relates to a resin composition having gas barrier properties, which has excellent low-temperature characteristics and resistance to hydrogen brittleness without greatly detracting from gas barrier properties, and which can contribute to improve durability when used as a resin tube for high-pressure gas or as a resin liner for a composite container. Provided is an evoh resin composition ...
Resin composition, coating material, electronic component, molded transformer, motor coil and cable
Hitachi, Ltd.
January 11, 2018 - N°20180009955

A resin produced by a conventional technique has a weak nature in terms of hydrolysis resistance. For example, in a case where the resin produced by a conventional technique is used in an area with a highly humid climate such as japan for a long period of time, deterioration of the resin due to hydrolysis becomes a concern. A resin ...
Dinadic phenyl amine reactive endcaps
The Boeing Company
January 11, 2018 - N°20180009949

Dinadic phenyl amine reactive endcap monomers for application in high-temperature polymeric composites are described. The amine group of the endcap is directly reacted with a desired chemical backbone to provide the preferred rigidity and chemical resistance. The ability of the amine group to react with a wide variety of chemical backbones allows the tailoring of formulations for various application temperatures, ...
Method for manufacturing medical material, medical material, and anti-adhesion material
Dainichiseika Color & Chemicals Mfg. Co., Ltd.
January 04, 2018 - N°20180000994

There is provided a process for producing a medical, material that retains the properties which are inherent in a polyanionic polysaccharide being a raw material, that has a high level of safety because there is no need to use a chemical crosslinking agent, and that has moderate strength and flexibility. The present invention is a process for producing a medical ...
Process for preparing organic solvent-based dispersions, coating compositions and coated metal substrate useful for packaging ...
Akzo Nobel Coatings International B.v.
December 28, 2017 - N°20170369733

The invention relates to a process for preparing an organic solvent-based dispersion comprising a melt-blended network of an epoxy-functional and/or amino-functional polymer having a polymer-o—si—o-polymer linkage and a polyolefin (co)polymer having carboxylic acid and/or carboxylic acid anhydride groups, the process comprising the steps of a) forming the melt-blended network from a prepolymer, a ...
Transparent, highly heat resistant resin composition
Denka Company Limited
December 28, 2017 - N°20170369694

A resin composition that is transparent and excellent in weather resistance and heat resistance, and a molded article thereof are provided. According to the present invention, a transparent and highly heat-resistant resin composition, comprising: an aromatic vinyl-(meth) acrylic acid ester-unsaturated dicarboxylic acid anhydride copolymer (a); and an ultraviolet absorbing agent (b); wherein an amount of a residual unsaturated dicarboxylic ...
Efficient process for preparing an ester of a cellulose ether
Dow Global Technologies Llc
December 14, 2017 - N°20170355783

A process for producing an esterified cellulose ether can be efficiently be produced by reacting a moist cellulose ether having a water content of at least 10 percent, based on the weight of the moist cellulose ether, with an aliphatic monocarboxylic acid anhydride, a dicarboxylic acid anhydride or a combination thereof. Further improvements in efficiency and reduction in process steps are ...
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Surface-treated carbon fiber, surface-treated carbon fiber strand, and manufacturing method therefor
The University Of Tokyo
November 23, 2017 - N°20170335507

A surface-treated carbon fiber having a mole ratio between a carboxyl group and an acid anhydride of 50:50 to 70:30 when measured by pyrolysis gas analysis, is manufactured by spraying a reactive gas that has been made into a plasma onto the surface of a carbon fiber and introducing a functional group into the surface of the carbon fiber.
Process for preparing an ester of a cellulose ether
Dow Global Technologies Llc
November 23, 2017 - N°20170335019

A process for producing an esterified cellulose ether comprises the step of reacting a cellulose ether with an aliphatic monocarboxylic acid anhydride and/or a dicarboxylic acid anhydride and with a depolymerizing agent, wherein the cellulose ether has an initial viscosity of at least 500 mpa·s, measured as a 2 weight-% solution in water at 20° c., and the reaction ...
Process for the manufacture of carboxylic anhydride
Solvay Acetow Gmbh
November 16, 2017 - N°20170327450

The present invention concerns a process for manufacturing a fraction comprising carboxylic acid anhydride by reaction of a fraction comprising carboxylic acid with a ketene, and the use of the fraction comprising carboxylic acid anhydride in a process for acylation of polysaccharides.
Catalyst arrangement with optimized void fraction for the production of phthalic acid anhydride
Clariant International Ltd.
November 09, 2017 - N°20170320803

The invention relates to a catalyst arrangement for preparing phthalic anhydride by gas-phase oxidation of aromatic hydrocarbons, which comprises a reactor having a gas inlet end for a feed gas and a gas outlet end for a product gas and also a first catalyst zone made up of catalyst bodies and at least one second catalyst zone made up of ...
Adhesive resin composition, adhesive film, and flexible metal laminate
November 02, 2017 - N°20170313916

The present invention relates to an adhesive resin composition including a styrene-ethylene-butylene-styrene copolymer with a specific chemical structure, an epoxy resin, an acid anhydride compound, and a curing catalyst, an adhesive film obtained from the resin composition, and a flexible metal laminate including the adhesive film.
Tire
November 02, 2017 - N°20170313847

A tire comprising a tire frame that is formed of a resinous material and has a circular form, the resinous material including a thermoplastic polyamide-based elastomer, silica, and a silane coupling agent that has a functional group, the functional group including at least one selected from the group consisting of a nitrogen atom, a carboxyl group, an acid anhydride, and ...
Photosensitive resin composition and cured product thereof
Nippon Kayaku Kabushiki Kaisha
October 12, 2017 - N°20170293225

Provided is a photosensitive resin composition that contains (a) a photobase generator and (b) an alkali-soluble epoxy compound, wherein the photobase generator (a) contains a compound represented by formula (2-1) and the alkali-soluble in epoxy compound (b) is an epoxy compound obtained by reacting (c) a polybasic acid anhydride with a product of a reaction between (a) an epoxy compound ...
Polyamide and polyimide sticker adjuvants
Huntsman Petrochemical Llc
October 05, 2017 - N°20170280711

A sticker adjuvant that may be used in agrochemical compositions is disclosed. The sticker adjuvant is a polyether amide or a polyether imide formed by the reaction of a polyether polyamine with a polyfunctional monomer. The polyfunctional monomer may be a polyacid, a di-functional acyl halide, an acid anhydride, a poly(acid anhydride) and a mixture thereof.
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