| http://www.w3.org/ns/prov#value | - A polymer capable of being cross-linked by light consisting essentially of units of the formula ##SPC7##where R is hydrogen or methyl; R1 is a straight-chain or branched, saturated or unsaturated hydrocarbon radical having from 1 to 3 carbon atoms in which a hydrogen atom may be substituted by cyano, (C1 to C2) alkoxy, carbo- (C1 to C2)-alkoxy, (C1 to C2) acyl or (C1 to C2) acyloxy; R2 and R3 are
|
