Patent ID: 7534850

Claim:
A silyl group-containing polymer represented by the following formula (1): wherein R 1 is a group having a hydroxyl group(s) removed from a monohydroxy or polyhydroxy compound having t hydroxyl group(s) in its molecule, R 2 is a bivalent organic group, R 3 is a C 1-20 monovalent organic group which may have a substituent, X is a hydroxyl group or a hydrolysable group, Y is a bivalent group derived from a combination of at least one cyclic ester and at least one alkylene oxide, wherein the group derived from the cyclic ester is represented by the following formula (A) and the group derived from the alkylene oxide is represented by the following formula (B), “a” is an integer of from 1 to 3, r is an integer of from 2 to 1,000, and t is an integer of from 1 to 8, provided that when a plurality of Y's are present in the molecule, the plurality of Y's may be the same or different, and when t is from 2 to 8, a plurality of monovalent groups bonded to R 1 may be the same or different: in the formula (A), R 4 is a C 2-8 alkylene group, and in the formula (B), R 5 is a C 2-4 alkylene group.