Curable acrylamido oligomer compositions with initiator, and cured products

Claim 1

A composition of matter comprising (a) an acrylamido- or methacrylamido-acyl oligomer having the general formula: A.sub.P (HX).sub.n-p R wherein R is an organic group having a valence of n and is the residue of a nucleophilic group-substituted oligomer, (HX) n R, said oligomer being selected from the group consisting of polyoxyalkylene, polyalkyleneimine, organic polyester, polyacrylic acid ester, polysiloxane, and polyolefin oligomers having one or more hydroxyl, amino, or thiol groups and having a molecular weight of 200 to 20,000; n is a positive number of at least one and represents the valence of R; p is a positive number in the range of 1 to n; A is an acrylamido-acyl group or a methacrylamido-acyl group having the formula ##STR9## wherein F 1 is hydrogen, chlorine, or a methyl group; R 2 is a single bond or a methylene or ethylene group that can be substituted by an alkyl group having 1 to 6 atoms or phenyl; R 3 and R 4 are independently hydrogen, an alkyl or cycloalkyl group having 1 to 12 carbon atoms, phenyl or alkyl-substituted phenyl having 6 to 12 carbon atoms, or R 3 and R 4 taken together with the carbon atom to which they are attached form a 5- to 12-membered carbocyclic ring; and X is ##STR10## --O--, or --S--, in which R 5 is (a) hydrogen, (b) a group selected from an alkyl or cycloalkyl group having 1 to 12 carbon atoms optionally substituted by a cyano, hydroxyl, or an alkoxy group having 1 to 4 carbon atoms, or A; with the proviso that when R 5 is an alkyl or cycloalkyl group, then at least one of R 3 and R 4 is hydrogen, and (b) an amount of a thermally or photochemically activatable free radical generator sufficient to initiate polymerization of said composition.