Patent ID: 8044138

Claim:
A carboxylic acid-modified nitrile copolymer latex comprising a carboxylic acid-modified nitrile copolymer prepared from a conjugated diene monomer, an ethylenically unsaturated nitrile monomer, an ethylenically unsaturated acid monomer, and an unsaturated monomer having at least one crosslinkable functional group, wherein the conjugated diene monomer, the ethylenically unsaturated nitrile monomer, the ethylenically unsaturated acid monomer and the unsaturated monomer having at least one crosslinkable functional group are used in amounts of 40 to 90% by weight, 10 to 50% by weight, 0.1 to 10% by weight and 0.1 to 1% by weight, respectively, wherein the unsaturated monomer is selected from the group consisting of glycidyl (meth)acrylate, α-methylglycidyl (meth)acrylate, allyl glycidyl ether, oxocyclohexyl (meth)acrylate, 3,4-epoxycyclohexylmethyl (meth)acrylate, ethyleneglycol dimethacrylate, diethyleneglycol dimethacrylate, triethyleneglycol dimethacrylate, 1,3-butanediol dimethacrylate, 1,6-hexanediol dimethacrylate, 2,5-hexanediol dimethacrylate, 2,4-pentanediol diacrylate, 2,4-pentanediol dimethacrylate, dipropyleneglycol diacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, neopentylglycol diacrylate, neopentylglycol dimethacrylate, and mixtures thereof.