Nitrogen-containing Reactant Patents (Class 524/602)
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Patent number: 7345108Abstract: Additives comprising dispersed silica nanoparticles are disclosed. The silica nanoparticles are dispersed in an aminoplast, such as a modified aminoplast formed from the reaction between an aminoplast, a modifying component, and optionally a siloxane. The resulting additives can be added to coating compositions to provide improved mar and/or scratch resistance.Type: GrantFiled: November 14, 2005Date of Patent: March 18, 2008Assignee: PPG Industries Ohio, Inc.Inventors: Ronald R. Ambrose, Shengkui Hu, William H. Retsch, Jr., Kristin M. Bartlett, Richard J. Sadvary, Masayuki Nakajima
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Publication number: 20070249117Abstract: A polymer resin composition, a method for forming a pattern using the polymer resin composition, and a method for fabricating a capacitor using the polymer resin composition are disclosed. The polymer resin composition includes about 75 to 93 percent by weight of a copolymer prepared from benzyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate; about 1 to 7 percent by weight of a cross-linking agent; about 0.01 to 0.5 percent by weight of a thermal acid generator; about 0.01 to 1 percent by weight of a photoacid generator; about 0.00001 to 0.001 percent by weight of an organic base; and a solvent.Type: ApplicationFiled: March 30, 2007Publication date: October 25, 2007Inventors: Kyong-Rim Kang, Sun-Yul Ahn, Young-Ho Kim, Jae-Hyun Kim, Joo-Hyung Yang, Tae-Sung Kim
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Patent number: 7285585Abstract: This invention provides processes for isolating particles from an emulsion including the steps of: (a) forming an emulsion having a solid component having a population of particles, a liquid component, and a first ionic forming compound, wherein the presence of the first ionic forming compound in the emulsion does not result in the coagulation of the population of particles contained therein; (b) obtaining a composition having a second ionic forming compound which, by itself, is not sufficient to result in the coagulation of the population of particles contained in the emulsion; and (c) mixing the emulsion and the composition having the second ionic compound such that the first ionic forming compound reacts with the second ionic forming compound to form a coagulating agent which results in the coagulation of the population of particles. The invention also provides processes for preparing a polymer matrix system using the aforementioned process for isolating particles from an emulsion.Type: GrantFiled: August 8, 2003Date of Patent: October 23, 2007Assignee: Rohm and Haas CompanyInventors: Robert William Coyle, Morris Christopher Wills
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Patent number: 7226971Abstract: The present invention is directed to a polyester resin for use in a coating composition. The polyester resin is the reaction product of a first compound comprising a plurality of hydroxyl groups, a lactone compound, a carboxylic acid anhydride, an epoxy compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a coating composition including the polyester resin and to a method of preparing the resin.Type: GrantFiled: July 26, 2002Date of Patent: June 5, 2007Assignee: BASF CorporationInventors: Swaminathan Ramesh, Marvin L Green
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Patent number: 7211615Abstract: A composition containing from 88 to 99.99% by weight of a polyamide, a compound of a polyamide and mixtures of these, and from 0.01 to 0.25% by weight of a flow aid where the drying loss from the flow aid after 5 days of conditioning at a relative humidity of 95% is less than or equal to 1%, determined by ISO 787/2.Type: GrantFiled: November 5, 2003Date of Patent: May 1, 2007Assignee: Degussa AGInventors: Franz-Erich Baumann, Sylvia Monsheimer, Maik Grebe, Wolfgang Christoph, Dirk Heinrich, Holger Renners, Heinz Scholten, Thomas Schiffer, Joachim Muegge, Johannes Chiovaro
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Patent number: 7183352Abstract: The present invention relates to novel polyesterpolyols with cyclic imide structure and to their use in coating compositions.Type: GrantFiled: August 11, 2003Date of Patent: February 27, 2007Assignee: Bayer MaterialScience AGInventors: Christian Wamprecht, Hans-Gerd Van Treek, Raul Pires, Ulrich Freudenberg, Robert Reyer
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Patent number: 7148269Abstract: A method for producing a composite material containing nanotubes and an interfacial polymer, and a composite material made by the method. The method involves contacting two mutually insoluble monomer solutions, at least one of which contains nanotubes, to provide an insoluble polymer containing entrained nanotubes.Type: GrantFiled: March 11, 2003Date of Patent: December 12, 2006Assignee: Trustees of the University of PennsylvaniaInventors: Karen I. Winey, Reto Haggenmueller, Fangming Du
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Patent number: 7147889Abstract: Described are imbibition compositions that incorporate kinetic enhancing additive(s) into photochromic polymeric host material. Kinetic enhancing additives include organic polyol(s), epoxy-containing compound(s) or a mixture thereof that improves the performance of organic photochromic compounds in the polymeric host as determined in the Photochromic Performance Test. Also described is a process for incorporating kinetic enhancing additives into polymeric substrates prior to, after and/or with organic photochromic compounds and the resulting photochromic articles produced by such a process.Type: GrantFiled: January 16, 2004Date of Patent: December 12, 2006Assignee: Transition Optical, Inc.Inventors: Michael S. Misura, Anil Kumar
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Patent number: 7148307Abstract: The present invention relates to novel polyesterpolyols with cyclic imide and isocyanurate structure and to their use in coating compositions.Type: GrantFiled: August 11, 2003Date of Patent: December 12, 2006Assignee: Bayer AktiengesellschaftInventors: Christian Wamprecht, Raul Pires, Ulrich Freudenberg, Robert Reyer
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Patent number: 7109258Abstract: A polymeric material with antistatic properties, characterised by comprising a dispersion of ions within a polymeric matrix containing heteroatoms.Type: GrantFiled: January 5, 2000Date of Patent: September 19, 2006Assignees: Cryvet S.R.L.Inventors: Gualtiero Valeri, Vito Di Noto
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Patent number: 7053172Abstract: The fuel-barrier polyamide resin of the present invention is a product of the polycondensation of a diamine component comprising 70 mol % or higher of m-xylylenediamine and a dicarboxylic acid component comprising 70 mol % or higher of a mixed dicarboxylic acid which comprises a C4 to C20 ?,?-linear aliphatic dicarboxylic acid and at least one dicarboxylic acid selected from the group consisting of isophthalic acid and naphthalenedicarboxylic acid in a molar ratio of 30:70 to 95:5. The polyamide resin is excellent in not only fuel-barrier property and heat resistance, but also moldability and recyclability, and therefore suitably used as a barrier material of fuel containers.Type: GrantFiled: May 4, 2004Date of Patent: May 30, 2006Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Kazunobu Sato, Kazunobu Maruo, Jun Mitadera, Masashi Kurokawa
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Patent number: 7053125Abstract: Comb polymers are used as dispersants to increase the stability of colloidal suspensions containing multivalent or high concentrations of monovalent ions. Stabilized colloidal suspensions and methods of forming stabilized colloidal suspensions are described, including suspensions containing ceramic precursors or bioactive agents useful in forming ceramic substrates or pharmaceutical compositions, respectively.Type: GrantFiled: January 3, 2003Date of Patent: May 30, 2006Assignees: The Board of Trustees of the University of Illinois, W.R. Grace & Co.-Conn.Inventors: Jennifer A. Lewis, Glen Kirby, Josephine Ho-Wah Cheung, Ara Avedis Jeknavorian
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Patent number: 7026436Abstract: The present invention relates to a polyimide adhesive composition having a polyimide derived from an aromatic dianhydride and a diamine component, where the diamine component is preferably about 50 to 90 mole % of an aliphatic diamine and about 10 to 50 mole % of an aromatic diamine. In one embodiment, the aliphatic diamine has the structural formula H2N—R—NH2 wherein R is hydrocarbon from C4 to C16 and the polyimide adhesive has a glass transition temperature in the range of from 150° C. to 200° C. The present invention also relates to compositions comprising the polyimide adhesive of the present invention, including polyimide metal-clad laminate useful as flexible circuit when metal traces are formed out of the metal used in flexible, rigid, or flex-rigid circuit applications.Type: GrantFiled: November 26, 2002Date of Patent: April 11, 2006Assignee: E.I. du Pont de Nemours and CompanyInventor: Kuppusamy Kanakarajan
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Patent number: 7005473Abstract: The present invention is directed to a polyester polycarbamate polymeric pigment dispersant to be used as a grind resin to incorporate pigment into pigment dispersions for coating compositions. The pigment dispersant is the reaction product of a first compound having a plurality of hydroxyl groups, a carboxylic acid anhydride, a second compound having at least one epoxy group, and a carbamate compound. The present invention is also directed to a method of preparing the pigment dispersant.Type: GrantFiled: April 16, 2002Date of Patent: February 28, 2006Assignee: BASF CorporationInventors: Swaminathan Ramesh, Paul Harris
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Patent number: 6984714Abstract: This invention relates to a siloxane-modified polyimide resin which shows excellent adhesiveness and can be bonded by thermocompression at high temperature even after subjection to thermal hysteresis in the manufacturing step for electronic parts. This polyimide resin is obtained from an aromatic tetracarboxylic acid dianhydride (A) and a diamine (B) comprising 30–95 mol % of a bis(4-aminophenoxy)alkane (B1) and 5–70 mol % of a siloxanediamine (B2) as essential components.Type: GrantFiled: April 23, 2003Date of Patent: January 10, 2006Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Kiwamu Tokuhisa, Hongyuan Wang
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Patent number: 6960642Abstract: Fiber, fabric, film, molded or blown article comprising a water- and oil-repellent composition comprising a melt blend of components (a) and (b) in which: (a) comprises a repellency-imparting, fluorochemical composition comprising at least one fluorine-containing aromatic ester oligomer comprising (1) at least two repeat units derived or derivable from the reaction of at least one dicarboxylic acid (or a derivative thereof) and at least one polyol, with the proviso that either the dicarboxylic acid (or derivative) or the polyol (or both) is aromatic or heteroaromatic, and (2) fluorochemical endgroups derived or derivable from the reaction of (i) the dicarboxylic acid (or derivative) and at least one fluorine-containing monoalcohol, or (ii) the polyol and at least one fluorine-containing monocarboxylic acid; and (b) comprises a treatable substrate material; with the proviso that, when the treatable substrate material comprises a mixture of at least two polymers, the mixture is non-stratifying.Type: GrantFiled: January 9, 2003Date of Patent: November 1, 2005Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Thomas P. Klun, Jeffrey G. Linert, Richard M. Stern
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Patent number: 6956081Abstract: The invention relates to reinforced thermoplastic polyamide molding materials having simultaneously good surface quality, good flowability and good heat dimensional stability, from polyamide compositions on the basis of semi-crystalline semi-aromatic polyamides and copolyamides having a melting point of at least 240° C. (A) and amorphous (co)polyamides (B). The molded articles produced by the molding materials according to the present invention are used for production of interior and exterior parts, especially having structural or mechanical function in the fields of electric components, electronics, telecommunication, automobile, transport, packaging, domestic, furniture, sports, apparatus engineering, machine construction, heating installation, air conditioning, and sanitation.Type: GrantFiled: March 13, 2002Date of Patent: October 18, 2005Assignee: Ems-Chemie AGInventors: Martina Ebert, Reinhard Furst, Franz Felsberger
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Patent number: 6946088Abstract: The invention relates to a thermosetting coating mass, comprising a carboxyl functional polyester, and/or a carboxyl functional polyacrylate, a ?-hydroxyalkylamide, in which a portion of the hydroxyl groups are chemically blocked and/or fillers and/or heat stabilisers and/or triboadditives and/or further additives, such as, for example, dispersing and degassing agents.Type: GrantFiled: January 29, 2001Date of Patent: September 20, 2005Assignee: EMS-Chemie AGInventors: Andreas Kaplan, Albert Reich
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Patent number: 6930155Abstract: A polyurethane composition comprising: A) from 3 to 35% by weight of a polymeric composition comprising 1) at least one polymer and 2) at least one thermoset in amounts of from 0.5 to 50% by weight, based on the sum of A1) and A2), prepared by reaction in the polymer matrix A1) of a) at least one starting component containing NH2 groups and b) at least one starting component containing NCO groups, a) and b) having simultaneously or independently a functionality of ?2 and at least one starting component having a functionality of >2 being present in amounts of from 0.5 to 100% by weight, based on the weight of A2); B) from 15 to 45% by weight in the polymeric composition A), based thereon, of at least one amorphous and/or crystalline polyester having an OH number of from 10 to 250 mg KOH/g; C) from 7 to 25% by weight in the polymeric composition A), based thereon, of at least one curing agent based on blocked polyisocyanates, isocyanurates and/or uretdiones having a functionality of at least 1.Type: GrantFiled: November 29, 2002Date of Patent: August 16, 2005Assignee: Degussa AGInventors: Jörn Volker Weiss, Werner Grenda
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Patent number: 6930165Abstract: The invention concerns polyamides modified by a multifunctional compound. Finished articles formed from said polyamides or from compositions based on said polyamides exhibit excellent mechanical properties, and a very good surface appearance. The modified polyamide is obtained by mixing in melted form a polyamide and a polyamide macromolecular compound comprising star-shaped or H-shaped macromolecular chains.Type: GrantFiled: June 15, 2001Date of Patent: August 16, 2005Assignee: Rhodia Engineering Plastics S.r.l.Inventors: Nicolangelo Peduto, Franco Speroni, Haichun Zhang
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Patent number: 6908983Abstract: The present invention contemplates a process for forming polyaminoamide polymers formed by the reaction of a dibasic acid/ester with excess amounts of an amine; the intermediate polymer resulting therefrom; a process for synthesizing effective, high solids resins resulting from the reaction of intermediate polymers with an epihalohydrin; and the resultant high, solids resin. These resins may be used as wet strength resins in the papermaking industry.Type: GrantFiled: April 1, 2003Date of Patent: June 21, 2005Assignee: Hercules CorporationInventor: William W. Maslanka
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Patent number: 6906165Abstract: The invention concerns copolyamides obtained by using multifunctional monomers. It consists in using a multifunctional monomer comprising at least three reactive functions and at least another multifunctional monomer, in amounts such that the terminal group concentrations are balanced. The copolyamides are particularly high viscosity copolyamides. The invention also concerns compositions based on said copolyamides.Type: GrantFiled: August 7, 2001Date of Patent: June 14, 2005Assignee: Rhodia Engineering Palstics S.R.L.Inventors: Giuseppe Di Silvestro, Franco Speroni, Cuiming Yuan, Haichun Zhang
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Patent number: 6906125Abstract: A composition having a trisamino triphenyl compound and a layer composition having a trisamino triphenyl compound and a polyamide.Type: GrantFiled: September 30, 2002Date of Patent: June 14, 2005Assignee: Xerox CorporationInventors: Timothy J. Fuller, Kenny-Tuan T. Dinh, John F. Yanus, Yuhua Tong, Markus R. Silvestri, Dale S. Renfer
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Patent number: 6884865Abstract: The invention concerns copolyamides obtained by using multifunctional monomers. It consists in using at least one multifunctional monomer comprising at least three reactive functions and at least another multifunctional monomer, in amounts such that the terminal group concentrations are balanced. The copolyamides are more particularly high viscosity copolyamides. The invention also concerns compositions based on said copolyamides.Type: GrantFiled: August 7, 2001Date of Patent: April 26, 2005Assignee: Rhodia Engineering Plastics S.R.L.Inventors: Giuseppe Di Silvestro, Franco Speroni, Cuiming Yuan, Haichun Zhang
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Patent number: 6881775Abstract: An adhesive composition which can be formulated to have low or substantially no VOC emissions is provided. Adhesives in accordance with the invention can be formulated as high solids, one-part, reactive, cross-linked adhesives. This can be achieved by utilizing amide-ester-acrylate reactions or reactions with any other carboxylated polymers. Adhesive compositions in accordance with the invention can include oils, such as various drying oils and similarly acting polymers, co-polymers, and fatty acids. Adhesives in accordance with the invention can also include various hydrocarbon resins, particularly crosslinkable hydrocarbons having a melting point in the range 70° C. to 140° C. Cross-linking agents, such as materials with pendant oxazoline groups are also advantageously included. Various other mixing, flow and other handling ingredients can also be included.Type: GrantFiled: December 30, 2003Date of Patent: April 19, 2005Assignee: W.F. Taylor Co., Inc.Inventors: Robert Kintu Ddamulira, John Edmund Raidy, Jr., Barry Kenneth Wright, Darwin Carles Regis
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Patent number: 6881490Abstract: Inorganic particle/polymer composites are described that involve chemical bonding between the elements of the composite. In some embodiments, the composite composition includes a polymer having side groups chemically bonded to inorganic particles. Furthermore, the composite composition can include chemically bonded inorganic particles and ordered copolymers. Various electrical, optical and electro-optical devices can be formed from the composites.Type: GrantFiled: April 24, 2003Date of Patent: April 19, 2005Assignee: NanoGram CorporationInventors: Nobuyuki Kambe, Yigal Dov Blum, Benjamin Chaloner-Gill, Shivkumar Chiruvolu, Sujeet Kumar, David Brent MacQueen
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Patent number: 6878800Abstract: Process for providing a binder for mineral fibers, comprising the steps of: mixing together under reactive conditions an amine and an anhydride whereby water is added thereto, once substantially all the anhydride is dissolved and/or reacted in the amine.Type: GrantFiled: July 3, 2001Date of Patent: April 12, 2005Assignee: Rockwool International A/SInventors: Thor Husemoen, Erling Lennart Hansen, Povl Nissen
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Patent number: 6864349Abstract: Polymerized fatty acid-based polyamides may be combined with low polarity and high polarity co-solvents to produce homogeneous water-in-oil emulsions. These emulsions have the appearance of white or translucent creams, with stiffnessranging from soft and greasy, to hard and able to support weight. These emulsions are stable in the presence or absence of surfactant, and are formed easily by mixing components with heat and then cooling. These emulsions are useful in applications favoring an oil base, such as skin creams and cosmetics with emulsions of low stiffness, and car polish with emulsions of greater stiffness.Type: GrantFiled: December 13, 2002Date of Patent: March 8, 2005Assignee: Arizona Chemical CompanyInventors: Mark S. Pavlin, Richard A. O'Brien
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Patent number: 6861468Abstract: A polyester resin composition containing a thermoplastic polyester resin; a polyester copolymer containing a monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group; a layered silicate; and an antioxidant. The monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group is contained in the polyester copolymer in an amount of 5 to 15 mol %. The monomer having at least one of an amino group, an imino group, an amido group, and a sulfonic acid group is contained in the polyester resin composition in an amount of 1 to 5 mol % based on a total polyester content of the polyester resin composition. The antioxidant is contained in the polyester resin composition in an amount of 0.01% to 1.0% by mass.Type: GrantFiled: September 26, 2003Date of Patent: March 1, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuya Yoshida, Yukio Shirokura, Tadahiro Kegasawa, Masami Okamoto
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Patent number: 6858656Abstract: Active water compatible actinic radiation curable printing ink or coating compositions comprised of maleimide derivatives, water compatible resins and water, which are capable of curing at a practical intensity and energy level and a method for curing same.Type: GrantFiled: August 27, 2003Date of Patent: February 22, 2005Assignee: Sun Chemical CorporationInventors: David Anthony Biro, Mikhail Laksin, Yoshinobu Sakurai, Hisatomo Yonehara, Katsuji Takahashi
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Polymeric pigment dispersant utilized as a grind resin for pigments and method of preparing the same
Patent number: 6849686Abstract: The present invention is directed to a polymeric pigment dispersant to be used as a grind resin to incorporate pigment into a pigment dispersion for a coating composition. The polymeric pigment dispersant is the reaction product of dipentaerylthritol, hexahydrophthalic anhydride, glycidylneodecanoate, dimethylethanolamine, and polyphosphoric acid. The present invention is also directed to a method of preparing the polymeric pigment dispersant. In this method, the dipentaerythritol and the hexahydrophthalic anhydride are polymerized to form an intermediate compound. Next, an epoxy group of the glycidylneodecanoate reacts with the intermediate compound, and then the dimethylethanolamine salts the intermediate compound. Finally, the polyphosphoric acid is added to form the completed polymeric pigment dispersant. The polymeric pigment dispersant has improved stability in the pigment dispersion and is utilized for efficient wetting and grinding of the pigment in the pigment dispersion.Type: GrantFiled: September 25, 2001Date of Patent: February 1, 2005Assignee: BASF CorporationInventors: Joseph F. Michalec, Swaminathan Ramesh, Paul J. Harris -
Patent number: 6841651Abstract: The polyamide resin of the present invention is produced by polycondensation of a diamine component comprising 70 mol % or more of m-xylylenediamine and a dicarboxylic acid component comprising 70 mol % or more of a C4-C20 ?, ?-straight-chain aliphatic dicarboxylic acid in the presence of at least one phosphorus compound selected from the group consisting of phosphinic acid compounds and phosphonous acid compounds and in the presence of an alkali metal compound of a weak acid. The weak acid has a dissociation constant lower than a first dissociation constant of a dicarboxylic acid mainly constituting the polyamide resin. The polyamide resin satisfies the following requirements (A), (B) and (C): 14000?a?40000??(A) b?1.000??(B) 0.9930?b?1.1a2×10?11+3.2a×10?7?0.9980??(C) wherein a and b are as defined in the disclosure.Type: GrantFiled: April 8, 2003Date of Patent: January 11, 2005Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kazunobu Maruo, Tomomichi Kanda, Koji Yamamoto
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Patent number: 6838513Abstract: A golf ball 1 has a core 2, a cover 3, a mark layer 4, and a finishing coat layer 5. An ink used for the mark layer 4 includes an isocyanate curing agent that contains a diisocyanate trimer, a base material, and a colorant. Preferred curing agent contains an isophorone diisocyanate trimer. The ink includes a diisocyanate curing agent at equal to or greater than 1% by weight and equal to or less than 20% by weight, calculated on the basis of the solid content. The base material includes a polymer having a hydroxyl group as a principal component. The “NCO/OH” value, which is a ratio of isocyanate groups of the isocyanate curing agent and hydroxyl groups of the base material, is equal to or greater than 0.5 and equal to or less than 2.0. The mark layer 4 may be printed on a base coat layer, alternatively, may be printed on a crosslinked rubber. This ink has excellent adhesiveness to a base.Type: GrantFiled: May 23, 2002Date of Patent: January 4, 2005Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yoshiyuki Okido, Satoru Komatsu, Hiroaki Tanaka, Kazuhisa Fushihara
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Publication number: 20040254293Abstract: The present invention provides coating compositions that include reactive diluents and have high performance, low VOC levels, and low irritation levels. Certain embodiments of the present invention include water and water-dispersible polymers and other embodiments do not include water.Type: ApplicationFiled: May 27, 2004Publication date: December 16, 2004Inventors: T. Howard Killilea, James M. Bohannon
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Patent number: 6828413Abstract: The invention relates to a process for the preparation of a polyamide comprising at least a step in which a composition that comprises at least (a) a primary aminocarbonamide and (b) an aminocarboxylic acid and/or a lactam is polymerised, said composition comprising at least (a) 10-90 wt. % primary aminocarbonamide; (b) 10-90 wt. % aminocarboxylic acid and/or lactam; (c) 0-4 wt. % water; the amounts being relative to the sum of the compounds (a+b+c). Preferably the sum of the compounds (a+b+c) is at least 75 wt. % of the total composition, more preferably 85 wt. %, most preferably 90 wt. %. The polyamide obtained with the process has a &eegr;rel of more than 2.2. The process is eminently suitable for the preparation of polyamide-6 (polycapronamide) from a composition comprising 6-aminocapronamide, 6-aminocaproic acid and/or &egr;-caprolactam. This composition is preferably obtained via the reductive amination of a 5-formylyalerate ester, preferably 5-formylmethylvalerate in water.Type: GrantFiled: June 24, 2002Date of Patent: December 7, 2004Assignee: OSM IP Asseta, B.V.Inventors: Cornelis E. Koning, Rudy Rulkens, Nicolaas F. Haasen, Albert A. Van Geenen
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Patent number: 6818731Abstract: A polyamide resin composition contains 100 parts by weight of (A) a polyamide resin with a melting point of 270° C. to 340° C.; 0.2 to 20 parts by weight of (B) a compound represented by Formula (I) where R1 and R2 are alkyl groups having at least 9 carbon atoms, and m and n are integers from 1 to 3; and 1 to 100 parts by weight of (C) a bromine-based flame retardant.Type: GrantFiled: April 15, 2003Date of Patent: November 16, 2004Assignees: Kuraray Co., Ltd., Asahi Denka Co., Ltd.Inventors: Hideharu Matsuoka, Hideaki Oka, Koichi Uchida, Masahide Tsuzuki, Koji Beppu
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Patent number: 6787244Abstract: The present invention describes the use of poly-o-hydroxy amides (PHAs) for adhesively bonding articles or materials, especially components used in the semiconductor industry, such as chips and wafers, a process for adhesively bonding materials, especially chips and/or wafers, chip and/or wafer stacks produced by the process, and adhesive compositions which comprise the poly-o-hydroxy amides of the formula (I).Type: GrantFiled: July 30, 2002Date of Patent: September 7, 2004Assignee: Infineon Technologies AGInventors: Recai Sezi, Andreas Walter
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Publication number: 20040171748Abstract: A polyester resin is the reaction product of plurality of a first compound and a plurality of a carboxylic acid anhydride. The first compound has hydroxyl groups. The carboxylic acid anhydrides react with the hydroxyl groups of the first compounds to form a plurality of first intermediate compounds. These first intermediate compounds have at least one hydroxyl group and carboxylic acid groups. A temperature of the first intermediate compounds is increased until the hydroxyl group of one first intermediate compound condenses with one of the carboxylic acid groups of another first intermediate compound. This condensing, or condensation, forms the polyester resin having an ester linkage and carboxylic acid groups. A second compound having at least one epoxy group and a carbamate compound can be subsequently reacted with the polyester resin. A coating composition includes the polyester resin and a cross-linking agent reactive with the polyester resin.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Inventors: Swaminathan Ramesh, Marvin L. Green
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Patent number: 6784276Abstract: This invention is a highly concentrated stable solution of polyimide precursors (monomers) having a solids content ranging from about 80 to 98 percent by weight in lower aliphatic alcohols i.e. methyl and/or ethyl alcohol. The concentrated polyimide precursor solution comprises effective amounts of at least one aromatic diamine, at least one aromatic dianhydride or a lower molecular weight alkyl ester of said dianhydride, and a monofunctional endcap including monoamines, monoanhydrides and the lower alkyl esters of said monoanhydrides. These concentrated polyimide precursor solutions are particularly useful for the preparation of fibrous prepregs and composites for use in structural materials for military and civil applications.Type: GrantFiled: July 25, 2002Date of Patent: August 31, 2004Assignee: The United States of America as represented by the United States National Aeronautics and Space AdministrationInventor: Chun-Hua Chuang
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Patent number: 6780941Abstract: Blending of thermoplastic polyester with fiber-forming polyamide in the production of melt-colored melt-spun fibers results in improved color strength and aesthetics, and dimensional stability.Type: GrantFiled: May 7, 2001Date of Patent: August 24, 2004Assignee: Prisma Fibers, Inc.Inventors: Matthew B. Studholme, Arthur Roth, Jr., Brendan Francis McSheehy, Jr.
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Publication number: 20040162369Abstract: An adhesive composition which can be formulated to have low or substantially no VOC emissions is provided. Adhesives in accordance with the invention can be formulated as high solids, one-part, reactive, cross-linked adhesives. This can be achieved by utilizing amide-ester-acrylate reactions or reactions with any other carboxylated polymers. Adhesive compositions in accordance with the invention can include oils, such as various drying oils and similarly acting polymers, co-polymers, and fatty acids. Adhesives in accordance with the invention can also include various hydrocarbon resins, particularly crosslinkable hydrocarbons having a melting point in the range 70° C. to 140° C. Cross-linking agents, such as materials with pendant oxazoline groups are also advantageously included. Various other mixing, flow and other handling ingredients can also be included.Type: ApplicationFiled: December 30, 2003Publication date: August 19, 2004Inventors: Robert Kintu Ddamulira, John Edmund Raidy, Barry Kenneth Wright, Darwin Carles Regis
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Patent number: 6777525Abstract: Polyimides having a desired combination of high thermo-oxidative stability, low moisture absorption and excellent chemical and corrosion resistance are prepared by reacting a mixture of compounds including (a) 3,3′,4,4′-benzophenonetetracarboxylic dianhydride (BTDA), (b) 3,4′-oxydianiline (3,4′-ODA), and (c) 5-norbornene-2,3-dicarboxylic anhydride (NA) in a high boiling, aprotic solvent to give 5 to 35% by weight of polyamic acid solution. The ratio of (a), (b), and (c) is selected to afford a family of polyimides having different molecular weights and properties. The mixture first forms a polyamic acid precursor. Upon heating at or above 300° C., the polyamic acids form polyimides, which are particularly suitable for use as a high temperature coating, adhesive, thin film, or composite matrix resin.Type: GrantFiled: April 1, 2002Date of Patent: August 17, 2004Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Ruth H. Pater
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Patent number: 6777526Abstract: A separating agent that serves as an optical resolution agent is composed of a novel, useful optically active polymer. The separating agent is obtained through anionic polymerization of a novel maleimide and serves to separate optically active compounds.Type: GrantFiled: August 23, 2002Date of Patent: August 17, 2004Assignee: Tosoh CorporationInventors: Takumi Kagawa, Hideo Sakka
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Patent number: 6774205Abstract: A process for the preparation of novel polyamides, the use of such polyamides for the production of fibers, sheets and moldings, and fibers, sheets and moldings obtainable from such polyamides, are provided.Type: GrantFiled: December 26, 2002Date of Patent: August 10, 2004Assignee: BASF AktiengesellschaftInventors: Paul-Michael Bever, Ulrike Breiner, Bernd-Steffen von Bernstorff, Gerhard Conzelmann
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Patent number: 6770709Abstract: The present invention provides a resin composition comprising: (1) a vinyl copolymer obtained from a starting material containing vinyl monomer (a) which comprises at least one carbonyl group or aldehyde group and vinyl monomer (b) which is different from vinyl monomer (a) and capable of copolymerization; (2) a hydrazide derivative represented by general formula (I): (wherein R1 represents substituted or unsubstituted phenylene, substituted or unsubstituted cyclohexylene or alkylene; and R2 and R3, which may be the same or different, each represent a single bond or alkylene) or a hydrazide derivative in which the amino group(s) of the hydrazide derivative represented by general formula (I) are protected with a low molecular carbonyl compound; and (3) a polyamine compound represented by general formula (II): (wherein R4 represents substituted or unsubstituted phenylene, substituted or unsubstituted cyclohexylene or alkylene; and R5 and R6, which may be the samType: GrantFiled: December 27, 2002Date of Patent: August 3, 2004Assignee: Kyowa Yuka Co., Ltd.Inventors: Yoshio Nakano, Shigeru Murata, Shohei Konishi, Iwao Hotta
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Patent number: 6770711Abstract: A cross-linked acrylic polymer that is highly biocompatible is prepared from a water-soluble acrylic monomer by preparing an aqueous polymerization solution containing an acrylamide monomer and a catalyzing agent; polymerizing the monomer present in the polymerization solution by agitating and heating the polymerization solution. The polymerization is conducted in the presence of gaseous oxygen.Type: GrantFiled: November 7, 2002Date of Patent: August 3, 2004Assignee: Polymekon S.r.l.Inventors: Gerardo Balestrieri, Carmelo Protopapa
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Patent number: 6730729Abstract: The invention relates to a process for preparing an aqueous polymer dispersion comprising an emulsion polymer a polymer composed of at least 5% by weight of an ethylenically unsaturated monocarboxylic acid, dicarboxylic acid or dicarboxylic anhydride (acid polymer SP for short), and an alkoxysilane of the formula SiR1R2R3R4 in which the groups R1 to R4 independently of one another are each an organic radical with the proviso that at least one of the groups is an alkoxy group, which comprises preparing said emulsion polymer by emulsion polymerization in the presence of at least some of the alkoxysilane.Type: GrantFiled: April 18, 2002Date of Patent: May 4, 2004Assignee: BASF AktiengesellschaftInventors: Matthias Gerst, Matthias Laubender, Bernd Reck
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Patent number: 6730733Abstract: Aqueous polymer composition suitable for coating which comprises the following components dispersed in water: (1) a combination of an acrylic polymer(s) A and an acrylic polymer(s) B where polymer(s) A has a Tg of not more than 30° C. and polymer(s) B has a Tg of at least 35° C., more preferably at least 45° C., which is at least 25° C. higher than the Tg of polymer(s) A, and wherein one or both of polymers A and B bear crosslinker functional groups capable of imparting ambient-temperature crosslinkability to component (1) in a coating formed from the composition via the formation of non-radically-formed covalent bonds; and (2) a self-dispersible, ionically stabilised polymer having olefinically unsaturated bond functionality capable of imparting radiation-curability (preferably uv-radiation curability) thereto in a coating formed from the composition.Type: GrantFiled: August 28, 2002Date of Patent: May 4, 2004Assignee: Avecia LimitedInventors: Gerardus Cornelis Overbeek, Pablo Steenwinkel, Ronald Tennebroek, Tijs Nabuurs
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Patent number: 6710160Abstract: Disclosed are a polyamic acid having repeating units represented by the formula (1): wherein the norbornane skeleton of comprises four components of and their contents satisfy the following: 1%≦2,5-[diexo]≦90%, 1%≦2,5-[exo,endo]≦90%, 1%≦2,6-[diexo]≦90%, 1% ≦2,6-[exo,endo]≦90%, provided that (2,5-[diexo])+(2,5-[exo,endo])+(2,6-[diexo])+(2,6-[exo,endo])=100%, R represents from 4 to 27 carbon atoms, and represents a tetravalent group selected from the group consisting of an aliphatic group, a monocyclic aliphatic group, a condensed polycyclic aliphatic group, a monocyclic aromatic group, a condensed polycyclic aromatic group, and a non-condensed polycyclic aliphatic or aromatic group which is composed of cycloaliphatic or aromatic groups mutually bonded to each other either directly or via a crosslinking member; and a polyimideType: GrantFiled: March 20, 2002Date of Patent: March 23, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Wataru Yamashita, Katsuji Watanabe, Hideaki Oikawa, Hisato Ito
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Patent number: 6706777Abstract: Active water compatible energy curable compositions comprised of maleimide derivatives, water compatible resins and water which are capable of curing at a practical intensity and energy level and a method for curing same.Type: GrantFiled: July 23, 2001Date of Patent: March 16, 2004Assignee: Sun Chemical CorporationInventors: David Anthony Biro, Mikhail Laksin, Yoshinobu Sakurai, Hisatomo Yonehara, Katsuji Takahashi