"As examples of other polymerizable unsaturated monomers there may be mentioned C1-24 alkyl esters or cycloalkyl esters of acrylic acid or methacrylic acid, such as methyl (meth)acrylate, ethyl (meth)acrylate, n- or i-propyl (meth)acrylate, n-, i- or t-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, cyclohexyl (meth)acrylate, lauryl (meth)acrylate, isobornyl (meth)acrylate and the like; hydroxya" . . . . .