halogen, such as chlorine or bromine or fluorine, or a --CO--R1 group; each Y4 is independently hydrogen, a hydrocarbyl or hydrocarbyloxy group having from 1 to about 5 carbon atoms, or a halogen, such as chlorine or bromine or fluorine and X is ##STR23## or the acrylate or methacrylate compounds represented by the following Formula XXXXII ##STR24## wherein R4 is a hydrocarbyl group having from 2