Patent ID: 7622514
Filing Date: 2009-11-24
Classification: B82Y,C01P,C08F,C09C,Y10T

Abstract:
1. A curable composition which comprises: a) functionalized colloidal silica obtained from the reaction of surface hydroxyl groups of colloidal silica with at least one functionalizing silane of the general formula: wherein each R 1 is, independently, a monovalent alkyl, cycloalkyl, aryl, alkaryl or aralkyl group of up to 18 carbon atoms, optionally possessing at least one chemically reactive functionality selected from the group consisting of alkenyl, acrylate and epoxy; each R 2 is, independently, a monovalent hydrocarbon radical of up to 18 carbon atoms; and “a” is a whole number of from 1 to 3; b) at least one first curable monomer possessing at least one of alkenyl and acrylate functionality; c) at least one second curable monomer possessing epoxy functionality; wherein the second curable monomer is at least one epoxy resin selected from the group consisting of glycidyl ester of mono- or dicarboxylic acid, butyl glycidyl ether, phenylglycidyl ether, 2-ethylhexyl glycidyl ether, 3-cyclohexenylmethyl-3-cyclohexenylcarboxylate diepoxide, 2-(3,4-epoxy)cyclohexyl-5,5-spiro-(3,4-epoxy)cyclohexane-m-dioxane, 3,4-epoxycyclohexylmethyl-3,4- epoxycyclo-hexanecarboxylate, 3,4-epoxy-6-methycyclohexylmethyl-3,4-epoxy-6-methyl-cyclohexanecarboxylate, vinyl cyclohexanedioxide, bis(3,4-epoxycyclohexyl-methyl)adipate, bis(3,4-epoxy-6-methyl cyclohexylmethyl)adipate, exo-exo bis(2,3-epoxycyclopentyl) ether, endo-exo bis(2,3-epoxycyclopentyl) ether, 2,2-bis(4-(2,3-epoxypropoxy)cyclohexyl)propane, 2,6-bis(2,3-epoxypropoxy-cyclohexyl-p-dioxane), 2,6-bis(2,3-epoxypropoxy)norbornene, the diglycidylether of linoleic acid dimer, limonene dioxide, 2,2-bis(3,4-epoxycyclohexyl)propane, dicyclopentadiene dioxide, 1,2-epoxy-6-(2,3-epoxypropoxy)hexahydro-4,7-methanoindane, p-(2,3-epoxy)cyclopentylphenyl-2,3-epoxypropylether, 1-(2,3epoxypropoxy)phenyl-5,6-epoxy-hexadydro-4,7-methanoindane, o-(2,3-epoxy)cyclopentylphenyl-2,3-epoxypropyl ether), 1,2-bis(5-(1,2-epoxy)-4,7-hexahydromethanoindanoxyl)ethane, cyclopentenylphenyl glycidyl ether, cyclohexanediol diglycidyl ether, diglycidyl hexahydrophthalate, diglycidyl ether of bisphenol A and bisphenol F, alkyl glycidyl ether; alkyl- or alkenyl-glycidyl ester; alkyl-, mono- or poly-phenol glycidyl ether; polyglycidyl ether of pyrocatechol, resorcinol or hydroquinone, 4,4-dihydroxydiphenyl methane, 4, 4′-dihydroxy-3,3′-dimethyldiphenyl methane, 4,4′-dihydroxydiphenyl dimethyl methane, 4,4′-dihydroxydiphenyl methyl methane, 4,4′-dihydroxydiphenyl cyclohexane, 4,4′-dihydroxy-3,3′-dimethyldiphenyl propane, 4,4′-dihydroxydiphenyl sulfone, tris(4-hydroxyphyenyl)methane, polyglycidyl ether of the chlorination and bromination products of diphenols: polyglycidyl ether of novolacs; polyglycidyl ether of diphenols obtained by estertifying ethers of diphenols obtained by esterifying salts of an aromatic hydro carboxylic acid with a dihaloalkane or dihalogen dialkyl ether, polyglycidyl ether of polyphenol obtained by condensing a phenol and a long-chain halogen paraffin containing at least two halogen atoms; phenol novolac epoxy resin: cresol novolac epoxy resin and sorbitol glycidyl ether; d) at least one third curable monomer possessing at least one of alkenyl and acrylate functionality together with epoxy functionality, the third curable monomer replacing or supplementing the first curable monomer; and, optionally, e) at least one curing agent for the curable monomer(s).