Polymer Containing A Hydantoin Group Patents (Class 525/908)
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Patent number: 4702953Abstract: The invention relates to laminates of polyhydantoins.Type: GrantFiled: May 3, 1985Date of Patent: October 27, 1987Assignee: Bayer AktiengesellschaftInventors: Friedrich Jonas, Richard Muller, Rudolf Merten, Ludwig Rottmaier
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Patent number: 4499245Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of the cyanate esters, coprepolymers of the cyanate esters and an amine and mixtures thereof, (b) a polyhydantoin resin and optionally (c) at least one maleimide compound selected from the group consisting of polyfunctional maleimides, prepolymer of the maleimides, coprepolymers of the maleimides and an amine and mixtures thereof is disclosed.Type: GrantFiled: July 15, 1983Date of Patent: February 12, 1985Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Nobuyuki Ikeguchi, Hidenori Kimbara
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Patent number: 4486558Abstract: A carboxy-functional curative for epoxy resins comprising the reaction product of trimellitic anhydride and capped epoxy resins, the capped resins comprising a hydantoin diepoxide or a diglycidol ether of bisphenyl A reacted with benzoic acid or phenyl. The curative is used in conjunction with a thermosettable epoxy resin powder composition useful for applying electrically insulating coatings to electrical wire.Type: GrantFiled: February 9, 1984Date of Patent: December 4, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventor: Curtis R. Guilbert
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Patent number: 4410666Abstract: A curable resin composition comprising a mixture and/or a preliminary reaction product of (a) at least one cyanate compound selected from the group consisting of polyfunctional cyanate esters, prepolymers of the cyanate esters, coprepolymers of the cyanate esters and an amine and mixtures thereof, (b) a polyhydantoin resin and optionally (c) at least one maleimide compound selected from the group consisting of polyfunctional maleimides, prepolymer of the maleimides, coprepolymers of the maleimides and an amine and mixtures thereof is disclosed.Type: GrantFiled: January 27, 1981Date of Patent: October 18, 1983Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Nobuyuki Ikeguchi, Hidenori Kimbara
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Patent number: 4296158Abstract: Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer.Type: GrantFiled: February 1, 1980Date of Patent: October 20, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Terry W. Lewis
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Patent number: 4262072Abstract: Abrasion resistant coatings are comprised of a crosslinked polymeric coating comprising at least 15% by weight of said polymer derived from a polyacrylate material having a heterocyclic nucleus therein.Type: GrantFiled: June 25, 1979Date of Patent: April 14, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry A. Wendling, John B. Covington
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Patent number: 4243778Abstract: The thermosetting heat bondable lacquer comprises a solution of a thermosetting mixture of various resins in a solvent or mixture of solvents which boils at a temperature in the range of 50.degree. to 230.degree. C., preferably 130.degree. to 210.degree. C. The thermosetting mixture consists of a polyhydantoin resin, a polyhydroxy polyether or phenoxy resin and a polyurethane resin, each of which must have a pre-determined structure and a pre-determined specific viscosity. The composition of the thermosetting mixture must be within the hatched area in FIG. 1.The thermosetting heat bondable lacquer can be obtained by mixing solutions of the three resin components and can contain auxiliaries and additives and/or catalysts. If the solvent or mixture of solvents is removed from the heat bondable lacquer, e.g.Type: GrantFiled: June 14, 1979Date of Patent: January 6, 1981Assignee: Schweizerische Isola-WerkeInventors: Peter Heim, Karl Borer, Werner Allemann
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Patent number: 4206104Abstract: Resin mixtures of N,N'-dihydroxyalkyl ester substituted imidazolidinediones are especially useful in coating compositions having a low organic solvent content. The substituted imidazolidinediones have the formula ##STR1## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, X is ##STR2## where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms.Type: GrantFiled: October 10, 1978Date of Patent: June 3, 1980Assignee: PPG Industries, Inc.Inventors: Rostyslaw Dowbenko, Ronald J. Lewarchik, William J. Birkmeyer
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Patent number: RE31193Abstract: The thermosetting heat bondable lacquer comprises a solution of a thermosetting mixture of various resins in a solvent or mixture of solvents which boils at a temperature in the range of 50.degree. to 230.degree. C., preferably 130.degree. to 210.degree. C. The thermosetting mixture consists of a polyhydantoin resin, a polyhydroxy polyether or phenoxy resin and a polyurethane resin, each of which must have a pre-determined structure and a pre-determined specific viscosity. The composition of the thermosetting mixture must be within the hatched area in FIG. 1.The thermosetting heat bondable lacquer can be obtained by mixing solutions of the three resin components and can contain auxiliaries and additives and/or catalysts. If the solvent or mixture of solvents is removed from the heat bondable lacquer, e.g.Type: GrantFiled: September 8, 1981Date of Patent: March 29, 1983Assignee: Schweizerische Isola-WerkeInventors: Peter Heim, Karl Borer, Werner Alleman
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Patent number: RE31533Abstract: Information-carrying discs are comprised of a substrate having an information bearing layer derived from 15 to 100% by weight of at least one polyacryloyl-containing heterocyclic monomer.Type: GrantFiled: December 3, 1982Date of Patent: March 6, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventor: Terry W. Lewis