Patent ID: 8900711

Claim:
A fluorooxyalkylene group-containing polymer composition comprising a liner fluorooxyalkylene group-containing polymer represented by the following formula (1): wherein Rf is represented by —(CF 2 ) d —(OC 2 F 4 ) e (OCF 2 ) f —O(CF 2 ) d —, A is a monovalent fluorinated group having a CF 3 group at a terminal, Q is a divalent organic group, Z is a divalent to octavalent organopolysiloxane moiety having a siloxane bond, R is an alkyl group having 1 to 4 carbon atoms or a phenyl group, X is a hydrolysable group, a is 2 or 3, b is an integer of from 1 to 6, c is an integer of from 1 to 5, α is 0 or 1, d is, independently of each other, 0 or an integer of from 1 to 5, e is an integer of from 0 to 80, f is a positive integer which is not zero and is at most 80, and a total of e and f is from 5 to 100, and these repeating units may be sequenced at random, said polymer being hereinafter called “one-terminal modified polymer”; a liner fluorooxyalkylene group-containing polymer represented by the following formula (2): wherein Rf, Q, Z, R, X, a, b, c and α are as defined above, said polymer being hereinafter called “both-terminal modified polymer”, wherein an amount of the both-terminal modified polymer is 0.1 mole % or more and less than 10 mole %, relative to a total mole of the one-terminal modified polymer and the both-terminal modified; and a fluorooxyalkylene group-containing polymer represented by the following formula (3): A-Rf-A (3) wherein Rf and A are as defined above, hereinafter called “non-modified polymer”, wherein an amount of the one-terminal modified polymer is 80 mole % or more and an amount of the both-terminal modified polymer is 0.1 mole % or more and less than 10 mole %, relative to a total mole of the one-terminal modified polymer, the both-terminal modified polymer and the non-modified polymer.