Patent ID: 7241553

Claim:
A polymer comprising recurring units having the general formulae (1a), (1b) and (1c): wherein R 1 , R 2 , R 5 , and R 6 each are a hydrogen or fluorine atom, R 3 and R 7 each are a fluorine atom or a straight, branched or cyclic fluoroalkyl group of 1 to 10 carbon atoms, R 4 is an acid labile group, R 8 is an adhesive group, d is 0, R 10 is a methylene group or an oxygen atom, and R 9a , R 9b , R 9c , and R 9d each are hydrogen or alkyl groups which have adhesive groups and two of R 9a to R 9d may bond together to form a ring, with the proviso that all of R 9a to R 9d are not hydrogen atoms at the same time, the embodiments of R 9a , R 9b , R 9c , R 9d , and R 10 being selected so that the general formula (1c) is at least one member selected from the group consisting of the following specific formulae: