Composition with improved pot life

Claim 1

A composition consisting essentially of a mixture of 0.01 to 10 parts by weight of a hardening catalyst and 100 parts by weight of a vinyl resin containing at least one silyl radical coupled with a hydrolytic radical at end groups or in side chains of each molecule, said silyl radical represented by the formula: ##STR5## wherein X represents a hydrolytic radical, R 1 and R 2 represent hydrogen atom, alkyl, aryl, or aralkyl radicals, any of which has 1 to 10 carbon atoms, and n is an integer of 1,2 or 3, said hydrolytic radical being selected from the group consisting of halogen, alkoxy, acryloxy, ketoximato, amino, acid amide, aminoxy, mercapto, and alkenyloxy radicals; and wherein said viny resin containing silyl group is produced by copolymerization reaction of one or more vinyl compounds to produce a vinyl resin having a carbon double bond followed by hydrosilylation reaction with hydrosilane, or copolymerization of said one or more vinyl compounds with silane compound having a double bond capable of polymerization, wherein said one or more vinyl compounds is selected from the group consisting of acrylic or methacrylic esters, carboxylic acids, acid anhydrides, epoxy compounds, amino compounds, acrylonitrile, iminolmethacrylate styrene, alpha methyl styrene, vinyl chloride, vinyl acetate, and vinyl propionate; and wherein said hardening catalyst comprises a mercaptide organic tin compound having Sn--S bond, or a sulfide organic tin compound having Sn═S bond, selected from the group consisting of (n--C 4 H 9 ) 2 Sn(SCH 2 COO) (n--C 8 H 17 ) 2 Sn(SCH 2 CH 2 COO) (n--C 8 H 17 ) 2 Sn(SCH 2 COOCH 2 CH 2 OCOCH 2 S) (n--C 8 H 17 ) 2 Sn(SCH 2 COOCH 2 CH 2 CH 2 CH 2 OCOCH 2 S) (n--C 4 H 9 ) 2 Sn(SCH 2 COOC 8 H 17-iso ) 2 (n--C 4 H 9 ) 2 Sn(SCH 2 COOC 12 H 25-n ) 2 (n--C 4 H 9 ) 2 Sn(SCH 2 COOC 8 H 17-iso ) 3 , and (n--C 8 H 17 ) 2 Sn═S; wherein said carboxylic acid is selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, and fumeric acid; wherein said acid anhydride is maleic acid anhydride; wherein said epoxy compound is selected from the group consisting of glycidyl acrylate and glycidyl methacrylate; and wherein said amino compound is selected from the group consisting of diethylamino ethyl acrylate, diethylaminoethyl methacrylate, and amino ethyl vinylether; and wherein said acrylic or methacrylic ester is selected from the group consisting of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, 2-ethylhexyl acrylate, and 2-ethylhexyl methacrylate; whereby pot life of said mixture is substantially lengthened.