Patents by Inventor Kaneyoshi Ashida
Kaneyoshi Ashida 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: 5336696Abstract: A halogen-free blowing agent is used to produce isocyanate-based polymeric foams. The blowing agent is an organic liquid which is free from halogens and contains a positive binary azeotrope having a minimum boiling temperature in the range of about 15.degree. C. to about 80.degree. C. at normal atmospheric pressure. Particularly preferred is a binary azeotrope of an alicyclic hydrocarbon such as cyclopentane or cyclohexane and methyl formate.The halogen-free blowing agents contemplated herein provide the following advantages: no ozone depletion potential, no global warming potential, direct replacement in foam formulations for trichloromonofluoromethane (CFC-11), relatively higher blowing action, relatively lower foam density, relatively lower thermal conductivity, better compatibility, and relatively lower materials cost.Type: GrantFiled: December 10, 1993Date of Patent: August 9, 1994Assignee: Nisshinbo Industries, Inc.Inventor: Kaneyoshi Ashida
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Patent number: 5260344Abstract: Rigid isocyanurate foams having a substantially open cell structure are prepared by foaming a mixture of an organic polyisocyanate and a polyol having a NCO/OH equivalent ratio of 3.5 to 13.Type: GrantFiled: March 13, 1992Date of Patent: November 9, 1993Assignee: Asahi Glass Company, Ltd.Inventors: Kaneyoshi Ashida, Josho Kashiwame
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Patent number: 5091436Abstract: There is disclosed a polyurethane/unsaturated polyester hybrid foam of the rigid type prepared from novel components including not only polyol and polyisocyanate but also a unique hydroxy-containing vinyl ester and vinyl monomer, optionally together with an additional polar vinyl monomer, all together providing the necessary components for a hybrid polyurethane-polyvinyl ester matrix, which mixture of components before foaming is capable of having suspended therein fillers and reinforcing fibers to produce a foam or reinforced foam composite having a density between about 20 and 100 pounds per cubic foot. The reinforced foam can be made into baords and the like and advantageously has continuous fiberglass strands or yarn disposed longitudinally in or adjacent the surface skin of the foam.Type: GrantFiled: February 20, 1990Date of Patent: February 25, 1992Inventors: Kurt C. Frisch, Kaneyoshi Ashida
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Fire retardant for isocyanate-based foams comprising ammonium sulfate and a cyanuric acid derivative
Patent number: 4908161Abstract: Ammonium sulfate powder is employed, alone, or in conjunction with a weakly basic powder to neuturalize the acidity of the sulfate, as a flame retardant for isocyanate-based foams and, in particular, rigid and flexible polyurethane foams.Type: GrantFiled: June 23, 1988Date of Patent: March 13, 1990Assignee: Harry FischerInventor: Kaneyoshi Ashida -
Patent number: 4898893Abstract: A blend of liquid hydrocarbon and halogenated aliphatic hydrocarbon is used as a blowing agent. The blowing agent is particularly useful to replace chlorofluorocarbons as blowing agents in isocyanate-based foams.Type: GrantFiled: September 20, 1988Date of Patent: February 6, 1990Assignee: Harry A. FischerInventor: Kaneyoshi Ashida
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Patent number: 4780485Abstract: A highly flame retardant and substantially non-combustible polyisocyanurate foam having low friability and no bursting characteristics and method for preparing the same. The method includes the step of reacting an isocyanate having an average isocyanate equivalent weight between about 135 and 145 with a polyether polyol having a hydroxyl number between about 300 and about 600 and a hydroxyl functionality of at least 3. The compounds are combined in amounts to provide NCO/OH equivalent ratio between about 10 and about 50 and are reacted in the presence of a chlorofluorocarbon blowing agent and a catalyst having the general formula: ##STR1## wherein R is a hydrocarbon having between about 1 and about 2 carbon atoms, R' is an alcohol radical having between about 2 and about 3 carbon atoms, and R" is selected from the group consisting of hydrogen and an alkane group having between 1 and 8 carbon atoms.Type: GrantFiled: July 2, 1987Date of Patent: October 25, 1988Assignee: Harry A. FischerInventor: Kaneyoshi Ashida
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Patent number: 4752626Abstract: This invention generally relates to a high resilience urethane foam (HR foam) having low compression set at a wide range of isocyanate index for use in small void filling in integrated foam parts.The small voids formed in the molding process of integrated foam parts can be filled without penetration of foaming liquids into existing foam cells. In addition, resulting foams have very low compression set values at a wide range of isocyanate index.The foaming system of the present invention is composed of two components, i.e., thixotropic polyisocyanate component and thixotropic polyol component. Their thixotropicity is obtained by adding benzal sorbitol into respective components. The polyisocyanate is selected from organic polyisocyanates and the polyol component is prepared by mixing a polyol blend composed of a polyolefinic polyol and a polyoxyalkylene polyol in a weight ratio between 95/5 to 50/50, a blowing agent, a surfactant and a catalyst.Type: GrantFiled: August 27, 1987Date of Patent: June 21, 1988Assignee: General Motors CorporationInventors: Robert J. Hoye, Vabilisetti S. Murty, Kaneyoshi Ashida, Chin-Jui Chang
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Patent number: 4742128Abstract: The present invention provides a molded product composed of a polymer alloy of a polyamide polymer and at least one polyurethane polymer, polyurea polymer, and/or polyisocyanurate polymer. The polymer alloy is an interpenetrated network of different polymers, a semi-interpenetrating network of different polymers, or a polyblend of different polymers.Reactant streams containing the compounds for forming the polymers of the polymer alloy are admixed to form a reaction mixture. The liquid reaction mixture is preferably a substantially homogeneous mixture of the reactant compounds. Each reactant stream thus contains only a portion of the components required to obtain the polymer alloy product. The resulting mixture is then rapidly introduced into a mold wherein chemical reaction takes place and the polymer alloy forms. Preferably, the mold is heated. The solid polymer alloy product is then recovered from the mold.Type: GrantFiled: October 15, 1985Date of Patent: May 3, 1988Assignee: Stamicarbon B.V.Inventors: Kurt C. Frisch, Kaneyoshi Ashida, Jozef L. M. van der Loos, Albert A. van Geenen
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Patent number: 4680214Abstract: There is disclosed a polyurethane foam of the rigid type having three different types of polyol components capable of having suspended therein fillers and reinforcing fibers. The foam is made into boards and the like and has continuous fiber glass strands or yarn disposed longitudinally in or adjacent the surface skin of the foam. The strands or yarn are parallel and close together and are flattened out in the foam-forming process so that the surfaces have a continuous fiber glass implant longitudinally and substantially so transversely.Type: GrantFiled: March 12, 1986Date of Patent: July 14, 1987Assignee: Polymetrics CorporationInventors: Kurt C. Frisch, Kaneyoshi Ashida
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Patent number: 4626385Abstract: An N-substituted carbamoyl-lactam compound of the formula ##STR1## wherein R is a di-valent radical derived from polytetramethylene glycol, R' is an at least divalent radical derived from a diisocyanate, Y is a C.sub.3 -C.sub.14 ring-forming alkylene group, and a has a value of at least 1 and is a number corresponding to the mean functionality of the aforesaid polyisocyanate minus 1. A process for preparing the N-substituted carbamoyl-lactam compound is also described.Type: GrantFiled: May 21, 1985Date of Patent: December 2, 1986Inventors: Kaneyoshi Ashida, Jozef L. M. van der Loos
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Patent number: 4614615Abstract: The invention relates to a process for preparing an N-substituted carbamoyl-lactam compound having the formula: ##STR1## by admixing a polyhydroxy compound having the formula R(OH).sub.n with a polyisocyanate having the formula OCH--R'--NCO, wherein saidn has a value of at least 3,R' is a di-valent hydrocarbon group having 6-25 carbon atoms, andY is a C.sub.3 -C.sub.14 alkylene group,and reacting the product thereof with a lactam. The n value may advantageously range from 3 to 10. The invention also relates to certain novel n-substituted carbamoyl-lactam compounds which can advantageously be used in the preparation of nylon 6 block copolymers, and are particularly useful in reaction injection molding nylon 6.Type: GrantFiled: April 15, 1985Date of Patent: September 30, 1986Inventors: Kaneyoshi Ashida, Jozef L. M. van der Loos, Kurt C. Frisch
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Patent number: 4611013Abstract: New compounds which are salts of the formula A.sup.+ B.sup.- where A.sup.+ is a quaternary ammonium cation and B.sup.- is a tetrahedral boron-oxygen complex anion are prepared from boric acid by reaction with a hydroxyl compound and a quaternary ammonium hydroxide. The salts are used as catalysts to prepare carbodiimides and isocyanurates from isocyanates which can be in the form of foamed resins.Type: GrantFiled: June 12, 1984Date of Patent: September 9, 1986Assignee: BP Chemicals LimitedInventor: Kaneyoshi Ashida
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Patent number: 4582879Abstract: A reaction injection molding process is disclosed comprising:introducing a mixture of substantially stable reactant streams into a mold, said mixture, in the aggregate, containing polyamide polymer forming compounds and polyurethane polymer forming compounds, said polyamide polymer forming compounds including lactam, an anionic polymerization catalyst and a polymerization activator, said polyurethane polymer forming compounds including a polyol, a polyisocyanate, a chain extender if desired, and a polyurethane polymerization catalyst, said polyamide polymer forming compounds and said polyurethane forming compounds reacting to respectively form polyamide and polyurethane polymers in said mold to thereby yielding a reaction injection molded product composed of said polymers; andrecovering said product from said mold.Type: GrantFiled: March 22, 1984Date of Patent: April 15, 1986Inventors: Kurt C. Frisch, Kaneyoshi Ashida, Jozef L. M. van der Loos, Albert A. van Geenen
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Patent number: 4568703Abstract: Titanium compounds of the formula Ti(OX).sub.4 or Ti((O--R.sub.2).sub.2 NR.sub.3).sub.2, where (a) X is selected from the group comprising --R.sub.1, --R.sub.2 --OH, --(R.sub.2 --O).sub.n --OH, --R.sub.2 N(R.sub.3).sub.2, and --R.sub.2 --N(R.sub.2)(R.sub.3)OH; (b) R.sub.1 is a C.sub.5 -C.sub.8 alkyl group, R.sub.2 is a C.sub.2 -C.sub.4 alkylene group and R.sub.3 is either --CH.sub.3 or --CH.sub.2 CH.sub.3 ; and (c) n=1-20, are catalysts for the trimerization of isocyanates to isocyanurates and for the formation of 2-oxazolidones from epoxides and isocyanates.The catalysts may also be used to produce poly(isocyanurates), poly(2-oxazolidones), poly(2-oxazolidone/isocyanurates) and polyurethanes containing isocyanurate and or 2-oxazolidone linkages from the appropriate polyfunctional feedstocks.Type: GrantFiled: July 27, 1984Date of Patent: February 4, 1986Assignee: BP Chemicals LimitedInventor: Kaneyoshi Ashida
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Patent number: 4514525Abstract: In a process for preparing a smoke-retardant polyisocyanurate foam by reacting an organic polyisocyanate in the presence of a blowing agent and an isocyanate-trimerization catalyst, the improvement comprising conducting the reaction by adding 0.5 to 6 wt. % as Si to the total components of the foam of an organosilicone surfactant having a Si content of 4-22%, and selected from an organopolysiloxane-poly-oxyalkylene copolymer, polyvinylsilane having polyoxyalkylene side chain or modified products thereof wherein the mole % of the ethylene oxide units of the polyoxyalkylene moiety of the organosilicone surfactant is greater than 40 mole % based on the total number of ethylene oxide and propylene oxide units in said polyoxyalkylene moiety.Type: GrantFiled: March 10, 1976Date of Patent: April 30, 1985Assignee: Mitsubishi Chemical Industries, LimitedInventors: Kaneyoshi Ashida, Masaaki Ohtani, Shoichi Ohkubo
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Patent number: 4133781Abstract: A smoke-retardant polyisocyanurate foam which contains an organosilicate having hydroxypolyoxyalkylene group which is obtained by reacting a polyoxyalkyleneglycol with at least one of metallic silicon, halosilicon compounds and lower alkyl silicates.Type: GrantFiled: August 24, 1977Date of Patent: January 9, 1979Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Kaneyoshi Ashida, Masaaki Ohtani, Takashi Yokoyama, Shoichi Ohkubo
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Patent number: 4072636Abstract: In a process for preparing a smoke-retardant polyisocyanurate foam by reacting an organic polyisocyanate in the presence of a blowing agent and an isocyanate-trimerization catalyst, an improvement is characterized in that the reaction is conducted in the presence of an organosilicate having the formula Si(OR).sub.4 or R.sub.n Si(OR').sub.4-n wherein R and R' are the same or different and represent aliphatic, alicyclic and aromatic hydrocarbon groups having 1-12 carbon atoms or substituted derivatives thereof and n is an integer of 1 to 3.Type: GrantFiled: March 3, 1976Date of Patent: February 7, 1978Assignee: Mitsubishi Chemical Industries LimitedInventors: Kaneyoshi Ashida, Masaaki Ohtani, Shoichi Ohkubo
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Patent number: 4066628Abstract: Oxazolidones are produced by reacting an organic isocyanate with an epoxide in the presence of a catalyst selected from the group consisting of dialkyl zinc, zinc carboxylate, organozinc chelate compound and trialkyl aluminum. Polyoxazolidones produced according to the present invention are useful starting materials for the manufacture of a wide variety of product including foams, coatings, adhesives, elastomers and the like.Type: GrantFiled: August 2, 1976Date of Patent: January 3, 1978Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Kaneyoshi Ashida, Kurt C. Frisch, Panagiotis Kordomenos
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Patent number: 4055522Abstract: There is disclosed a process for producing an isocyanate-based polymer by catalytically reacting a polyisocyanate alone or in combination with a polyhydroxy compound, the improvement in which an aromatic aldehyde having aldehyde group and no functional group capable of reacting with the isocyanate group, as a smoke suppressing agent is added to the reaction system.Type: GrantFiled: September 19, 1975Date of Patent: October 25, 1977Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Kaneyoshi Ashida, Masaaki Ohtani, Takashi Yokoyama, Shoichi Ohkubo
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Patent number: 4044184Abstract: A cryogenic heat insulating structure comprises: a wall coated with a plurality of superposed rigid foam layers each of the layers having a skin and each layer containing fibers oriented parallel to the wall.Type: GrantFiled: September 12, 1975Date of Patent: August 23, 1977Assignee: Mitsubishi Chemical Industries Ltd.Inventors: Kaneyoshi Ashida, Masaaki Ohtani, Makoto Ichii, Tatsuhiko Kobayashi