Patent ID: 8580477

Claim:
A polymer composition for forming a negative tone, self-imageable film comprising: a polymer comprising a first repeating unit and a second repeating unit represented by formula Ia: where for said first repeating unit one of R 1 , R 2 , R 3 and R 4 is —R 5 COOH and the others are hydrogen, and where for said second repeating unit one of R 1 , R 2 , R 3 and R 4 is a pendent hydrocarbyl group represented by one of formulae B, C or D: where R 5 for said first repeating unit is a C 1 to C 6 alkyl moiety and the others of R 1 , R 2 , R 3 and R 4 are hydrogen, and R 5 for said second repeating unit is —CH 2 CH 2 OCH 2 —; a photoacid generator; and a casting solvent selected from one or more of propyleneglycol monomethylether, propyleneglycol monomethylether acetate, gamma-butyrolactone, and cyclohexanone.