Patent ID: 7858721

Claim:
An alkali soluble polymer comprising a first, a second and a third type of repeating unit derived from a monomer represented by structural Formula 10: where in Formula 10, X is (CH 2 ) p , oxygen, or sulfur, p is 1 or 2, m is an integer from 0 to 5; and each of R 1 , R 2 , R 3 and R 4 is independently a hydrogen, a C 1 to C 25 hydrocarbyl, a C 1 to C 25 halohydrocarbyl, a C 1 to C 25 perhalohydrocarbyl or one of —C(OH)—(CF 3 ) 2 , —N(H)—S(O) 2 —CF 3 , —CH 2 —(CH 2 ) n —C(O)—OH, —(CH 2 ) n —C(O)—R 31 , —(CH 2 ) n —O—C(O)—R 31 , and —(CH 2 ) n —O—R 31 , where n is an integer from 0 to 8, R 31 is one of a mono- or multi-functional phenol represented by Formula AA, where A is optional and if present is an oxygen, where for a mono-functional phenol only one of R 5 , R 6 , R 7 , R 8 and R 9 is —OH and the others of R 5 to R 9 are a hydrogen, a C 1 to C 25 hydrocarbyl, a C 1 to C 25 halohydrocarbyl, or a C 1 to C 25 perhalohydrocarbyl and where for a multi-functional phenol two or more of R 5 to R 9 are —OH and the others of R 5 to R 9 are as defined above; with the proviso that for the monomer from which the first type of repeating unit is derived, one of R 1 to R 4 is a pendent group selected from either —C(OH)—(CF 3 ) 2 or —N(H)—S(O) 2 —CF 3 , the others being a hydrogen; and for the monomer from which the second type of repeating unit is derived, one of R 1 to R 4 is a carboxylic acid pendent group or a mono- or multi-functional phenol pendent group, the others being a hydrogen; and for the monomer from which the third type of repeating unit is derived, one of R 1 to R 4 is a pendent group selected from a C 1 to C 25 hydrocarbyl, a C 1 to C 25 halohydrocarbyl, a C 1 to C 25 perhalohydrocarbyl, the others being a hydrogen.