Patent ID: 8329838

Claim:
An imageable polymer consisting of norbomene-type repeating units, said polymer comprising a first norbornene-type repeating unit represented by Formula I: where X is —CH 2 —, —CH 2 CH 2 —, O or S; n is an integer from 0 to 5 inclusive; each of R 1 to R 4 independently represents hydrogen, a linear or branched alkyl group, or a linear or branched haloalkyl group, subject to the proviso that at least one of R 1 to R 4 is a -QNHSO 2 R 5 group where Q is a linear or branched alkyl spacer of 1 to 5 carbons, and R 5 is a perhalo group of 1 to 10 carbon atoms; a second norbornene-type repeating unit represented by Formula V: where X is —CH 2 —, —CH 2 CH 2 —, O or S; n is an integer from 0 to 5 inclusive; each of R 19 to R 22 independently represents hydrogen, a linear or branched alkyl group, or a linear or branched haloalkyl group, subject to the proviso that at least one of R 19 to R 22 is a group represented by formula G: where Q ‡ is an optional linear or branched alkyl spacer where if present is of 1 to 5 carbons; a third norbornene-type repeating unit represented by Formula VI: where in Formula VI, X and n are as defined for Formula V, and each of R 23 to R 26 independently represents hydrogen, a linear or branched alkyl group, or a linear or branched haloalkyl group, but with the proviso that least one of R 23 to R 26 is a group represented by one of formulae: where Q ‡ is as defined above and R 27 is a linear or branched alkyl group of 1 to about 5 carbon atoms; and a fourth type of repeating unit represented by Formula VI acid: where in Formula VI acid, X, n and R 23 to R 26 are as defined for Formula VI, but with the proviso that least one of R 23 to R 26 is a Q ‡ -COOH group where Q ‡ is also as defined for Formula VI, where said imageable polymer is imageable in the presence of a photoacid generator.