Patent ID: 7005228

Claim:
A polymer comprising recurring units of each of the following general formulae (1a), (1b) and (1c): wherein R 1 , R 2 , R 5 and R 6 each are hydrogen, a fluorine atom or a straight, branched or cyclic alkyl or fluorinated alkyl group of 1 to 20 carbon atoms, R 3 and R 7 each are a fluorine atom or a straight, branched or cyclic fluorinated alkyl group of 1 to 20 carbon atoms, R 4 is an acid labile group, R 8 is an adhesive group, R 9 is hydrogen, R 10 is a single bond or an alkylene or fluorinated alkylene group of 1 to 20 carbon atoms, R 11 and R 12 each are hydrogen, a fluorine atom or a straight, branched or cyclic alkyl or fluorinated alkyl group of 1 to 20 carbon atoms, at least either one of R 11 and R 12 contains at least one fluorine atom, R 13 which may be the same or different is hydrogen, a fluorine atom or a straight, branched or cyclic alkyl or fluorinated alkyl group of 1 to 10 carbon atoms, R 14 is hydrogen or a straight, branched or cyclic alkyl group of 1 to 10 carbon atoms which may contain an ether, carbonyl, ester group or lactone ring, “a,” “b” and “c” each are a number from more than 0 to less than 1, and 0<a+b+c≦1, m is an integer of 1 to 5, n is an integer of 0 to 4, and m+n=5.