Patent ID: 8481244

Claim:
An epoxy-containing polymer comprising recurring units of the following general formula (1) and having a weight average molecular weight of 3,000 to 500,000, wherein R 1 to R 4 are each independently a monovalent hydrocarbon radical of 1 to 8 carbon atoms, m is an integer of 1 to 100, a, b and d are each 0 or a positive number, satisfying 0.05≦c/(a+b+c+d)≦0.5 and 0.05≦(c+d)/(a+b+c+d)≦1.0, X and Y are each independently a divalent organic radical of the general formula (2) or (3) with proviso that at least one divalent organic radical of formula (3) is present: wherein Z is a divalent organic radical selected from the group consisting of n is 0 or 1, R 5 and R 6 are each independently an alkyl or alkoxy radical of 1 to 4 carbon atoms, and k is 0, 1 or 2, wherein V is a divalent organic radical selected from the group consisting of p is 0 or 1, R 7 and R 8 are each independently an alkyl or alkoxy radical of 1 to 4 carbon atoms, and h is 0, 1 or 2.