| abstract |
The crosslinking composition each independently comprises a compound having at least two functional groups represented by the formula (I) of claim 1 : X is oxygen, sulfur or nitrogen; R 1 is an alkyl group, an aryl group, or an alkylaryl group; R 2 , R 3 and R 4 are each independently an alkyl group, an aryl group, an alkylaryl group, or hydrogen; R 5 is an alkyl group, an aryl group, an alkylaryl group, or hydrogen; z is 0 when X is oxygen or sulfur, z is 1 when X is nitrogen; m is 0 when a double bond is formed between the carbon atom bonded to R 3 and the adjacent nitrogen, and m is 1 when a single bond is formed between the carbon atom bonded to R 3 and the adjacent nitrogen. |