Patents by Inventor Shuichi Okuzono
Shuichi Okuzono has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6384097Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=0 any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.Type: GrantFiled: August 27, 2001Date of Patent: May 7, 2002Assignee: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Patent number: 6384177Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3, provided that at n=o any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.Type: GrantFiled: August 27, 2001Date of Patent: May 7, 2002Assignee: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Publication number: 20020026078Abstract: An amine catalyst for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): 1Type: ApplicationFiled: August 27, 2001Publication date: February 28, 2002Applicant: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Patent number: 6307102Abstract: An amine catalyst-for production of a polyurethane and a polyisocyanurate is provided which comprises a quaternary ammonium compound represented by General Formula (1): where R1 to R6 are independently a linear or branched saturated hydrocarbon group of 1 to 4 carbon atoms; R7 and R8 are independently a linear or branched, saturated or unsaturated hydrocarbon group of 2 to 12 carbon atoms; n is a number of 0 to 3 provided that at n=o any one of R1, R2 and R3, and R5 and/or R6 may be linked together to form a heterocycle, or at n=1, 2, or 3, R5 or R6 and R4 may be linked together to form a heterocycle; A is a carbonate group or an organic acid group; and X is number of 1 to 2. The catalyst has high activity in formation of polyurethane foams and polyisocyanurate foams, having less odor, and producing foams of high fire retardance, having high curability, high retarding effect, and low corrosiveness.Type: GrantFiled: October 14, 1998Date of Patent: October 23, 2001Assignee: Tosoh CorporationInventors: Katsumi Tokumoto, Yutaka Tamano, Shuichi Okuzono
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Patent number: 5591781Abstract: A process for producing a flexible or rigid polyurethane foam is provided in which a polyol and a polyisocyante are reacted in the presence of an amine catalyst, a blowing agent, and a foam stabilizer, the amine catalyst comprising at least one amine compound represented by General Formula (1) below: ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are respectively an alkyl group of 1 to 6 carbons independently; n is an integer of 0 or 1; and A is an alkyl group of 11 to 14 carbons when n is 0, or an alkylene group of 10 to 15 carbons when n is 1. The amine catalyst has low odor and low volatility, and gives high curing rate, and excellent moldability with a formulation of reduced fluorocarbon and increased water as the blowing agent.Type: GrantFiled: October 24, 1994Date of Patent: January 7, 1997Assignee: Tosoh CorporationInventors: Hiroyuki Yoshimura, Hideaki Kisaka, Yutaka Tamano, Shuichi Okuzono
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Patent number: 5374666Abstract: An amine catalyst for producing polyurethane comprising a compound of formula (I): ##STR1## wherein n is an integer from 0 to 3, and R.sub.1, R.sub.2, and R.sub.3 are each independently a C.sub.1-3 alkyl group. The amine catalyst has a secondary hydroxyl group in the molecule and is non-bleeding in the polyurethane resin and excellent in moldability. A process for producing a polyurethane foam by reacting a polyol with a polyisocyanate in the presence of the amine catalyst defined above and a foaming agent are also disclosed.Type: GrantFiled: July 30, 1991Date of Patent: December 20, 1994Assignee: Tosoh CorporationInventors: Yutaka Tamano, Masaki Ishida, Shuichi Okuzono
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Patent number: 5304578Abstract: A process is provided for producing a polyurethane foam having a high-density skin layer by reacting a polyol with a polyisocyanate in a short time. The reaction is allowed to proceed in the presence of a blowing agent, a catalyst, and optionally an additive, the blowing agent being composed only of water, and the catalyst being an amine represented by formula (I) below and/or an organic acid salt thereof: ##STR1## where R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are, independently, an alkyl group of 1 to 12 carbons, or R.sub.1 and R.sub.2, and/or R.sub.3 and R.sub.4 may be linked to form a cycloalkyl or heterocyclic ring together with the adjacent nitrogen atom; and R.sub.5 is hydrogen, an alkyl group of 1 to 12 carbons, a phenyl group, or a cycloalkyl group. This process does not use halogenated hydrocarbons which cause ozone layer destruction.Type: GrantFiled: March 8, 1993Date of Patent: April 19, 1994Assignee: Tosoh CorporationInventors: Yutaka Tamano, Shuichi Okuzono
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Patent number: 5229430Abstract: An amine catalyst for producing polyurethane comprising a compound of formula (I): ##STR1## wherein n is an integer from 0 to 3, and R.sub.1, R.sub.2, and R.sub.3 are each independently a C.sub.1-3 alkyl group. The amine catalyst has a secondary hydroxyl group in the molecule and is non-bleeding in the polyurethane resin and excellent in moldability. A process for producing a polyurethane foam by reacting a polyol with a polyisocyanate in the presence of the amine catalyst defined above and a foaming agent are also disclosed.Type: GrantFiled: November 20, 1992Date of Patent: July 20, 1993Assignee: Tosoh CorporationInventors: Yutaka Tamano, Masaki Ishida, Shuichi Okuzono
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Patent number: 5104907Abstract: A process for producing a high resilience polyurethane foam by reacting a polyol with a polyisocyanate in the presence of a catalyst, a blowing agent, and a foam stabilizer; said polyisocyanate containing at least diphenylmethane diisocyanate and/or a mixture of diphenylmethane diisocyanate with a derivative thereof, the blowing agent being water, or water and a halogenated hydrocarbon in amounts of not less than 2 parts by weight of water and not more than 20 parts by weight of the halogenated hydrocarbon based on 100 parts by weight of the polyol, and the catalyst being at least one selected from the compounds represented by the formula (I) below: ##STR1## where R.sup.1 is alkyl having 1 to 4 carbons, dimethylaminopropyl, benzyl, vinyl, or hydroxyalkyl having 1 to 3 carbons; R.sup.2 is hydrogen, alkyl having 1 to 4 carbons, alkyl, benzyl or phenyl; and R.sup.3 and R.sup.4 are independently hydrogen, alkyl having 1 to 4 carbons, or hydroxymethyl.Type: GrantFiled: July 30, 1990Date of Patent: April 14, 1992Assignee: Tosoh CorporationInventors: Hiroyuki Yoshimura, Shuichi Okuzono, Shoji Arai
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Patent number: 5100927Abstract: A process for producing a rigid polyurethane foam by use of a decreased amount of a CFC blowing agent and an increased amount of water used as a blowing agent, maintaining a high degree of heat insulation and improving the deterioration in friability of the product. The catalyst is one of the imidazoles represented by the formula (I): ##STR1## where R.sup.1 is alkyl having 1 to 4 carbons, benzyl, dimethylaminopropyl, or hydroxyalkyl having 1 to 3 carbons; R.sup.2 is hydrogen, alkyl having 1 to 4 carbons, allyl, or benzyl; and R.sup.3 and R.sup.4 are independently hydrogen, methyl, or hydroxymethyl.Type: GrantFiled: June 6, 1990Date of Patent: March 31, 1992Assignee: Tosoh CorporationInventors: Yutaka Tamano, Shuichi Okuzono, Masaki Ishida, Shoji Arai, Hiroyuki Yoshimura
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Patent number: 4753658Abstract: Disclosed is a coloring material including a rubber having a sulfonic acid group or a salt thereof, which is dyed with a basic dye. The coloring material is prepared by adding a solution of an alkali in an alcohol to a solution of a chlorosulfonated polyolefin in an organic solvent and then adding a basic dye to the obtained reaction liquid, or adding a basic dye to a solution of a sulfonated product of a rubber in an organic solvent, and optionally removing the solvent from the obtained solution.Type: GrantFiled: July 14, 1987Date of Patent: June 28, 1988Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Shuichi Okuzono, Tatsushi Nakagawa, Takashi Shintani
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Patent number: 4740549Abstract: Disclosed is a wipe-erasable ink composition for a writing board, which has good erasability and long-period stability. This ink composition comprises a colored polymer formed by dyeing an organic solvent-soluble resin having a sulfonic acid group or a salt thereof with a basic dye, a volatile organic solvent and, as additives, (A) a nonionic surface active agent having an HLB value of 8 to 14 and/or a cationic organic compound, and (B) a slightly volatile or nonvolatile organic compound.Type: GrantFiled: July 10, 1986Date of Patent: April 26, 1988Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Shuichi Okuzono, Takashi Shintani, Yasuhiro Sakanaka
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Patent number: 4713083Abstract: A coloring material comprising a solution of an alcohol-soluble resin having a sulfonic acid group or a salt thereof, which is dyed with a basic dye, in a solvent comprising an alcohol as a main component. The coloring material is prepared either by (a) polymerizing an ethylenically unsaturated sulfonic acid or a salt thereof in water and adding a basic dye to the obtained aqueous liquid of the formed polymer or (b) carrying out said polymerization in the presence of a basic dye, and dissolving (i) the obtained aqueous liquid of the formed colored polymer of (ii) a colored polymer obtained by removing water from the obtained aqueous liquid of the formed colored polymer in a solvent comprising an alcohol as a main component; or, (a') carrying out said polymerization in a solvent comprising an alcohol as a main component and then adding a basic dye to the obtained polymer solution, or (b') carrying out said polymerization in the presence of a basic dye.Type: GrantFiled: July 3, 1985Date of Patent: December 15, 1987Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Shuichi Okuzono, Tetsuo Tanaka, Yasuhiro Oda, Takashi Shintani, Noriaki Emura
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Patent number: 4639508Abstract: A granular composition of ethylenethiourea-chloroprene rubber is produced by adding dropwise a mixture of chloroprene rubber latex and ethylenethiourea at a ratio of 5-100 wt. % per rubber of said rubber latex and a macromolecular polyanion having carboxyl group or hydroxyl group at a ratio of 2-8 wt. % per rubber of said rubber latex lower than 10.degree. C. into an aqueous solution containing at least one of alkaline earth metal salt at lower than 10.degree. C. for form granule and then, dehydrating and drying the granule.Type: GrantFiled: April 30, 1984Date of Patent: January 27, 1987Assignee: Toyo Soda Manufacturing Co., Ltd.Inventors: Yasuhiro Sakanaka, Shuichi Okuzono
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Patent number: 4612343Abstract: A colored polymer emulsion having dispersed therein particles of a copolymer having at least 2.times.10.sup.-5 g-eq./g of the copolymer, of a phosphoric acid group or salt thereof. The copolymer particles have an average particle size of not larger than 1 .mu.m and a minimum film-forming temperature of not higher than 35.degree. C., and have been dyed with a basic dye. The emulsion is capable of forming a film having an improved water resistance and light resistance. The emulsion is prepared by polymerizing a monomer mixture comprising (a - 1) a monomer having a phosphoric acid group or a salt thereof, (a - 2) a hydrophobic monomer and (b) a optional hydrophilic monomer by an emulsion polymerization procedure, and then incorporating a basic dye to the obtained polymer emulsion, or by carrying out the emulsion polymerization in the presence of a basic dye.Type: GrantFiled: July 3, 1985Date of Patent: September 16, 1986Assignee: Toya Soda Manufacturing Co., Ltd.Inventors: Shuichi Okuzono, Yasuhiro Oda, Takashi Shintani, Noriaki Emura