Silylmethacrylate copolymers, methods of obtaining them, antifoulding painting compositions containing such copolymers, antifoulding films formed of such painting compositions, methods of preventing surface fouling using such painting compositions and und

摘要

A silyl (meth)acrylate copolymer which comprises (a) silyl (meth)acrylate constituent units of formula (I), or (III) CHEM -CH2-CR(COOSiR11R12R13) wherein R1 to R4 and R to R13 are as defined herein, (b) acrylic unsaturated monomer constituent units of formula (II) or silyl (meth)acrylate constituent units of formula (IV) CHEM -CH2-CR(COOSiR14R15R16) wherein R, R5, Z and R14 to R16 are as defined herein and (c) unsaturated monomer constituent units other than the constituent units (a) and (b), providing that when (a) is a component of formula (I), (b) is a compound of formula (II); when (a) is a compound of formula (III), (b) is a compound of formula (IV); and the total amount of the constituent units (a), (b) and (c) is 100 % by weight; and which has a weight-average molecular weight, as measured by GPC, of not more than 200,000.