Patent ID: 6197476
Filing Date: 2001-03-06
Classification: C08F,C09D

Abstract:
A photosensitive composition comprising a cyclic dione copolymer of (a) a cyclic dione monomer selected from the group consisting of ##STR14##and (b) a norobornene derivative monomer selected from the group consisting of ##STR15##whereinm and a are independently integers from 1 to 3,X is selected from O, --NH--, and S,D is an acid-labile protective group which is decomposed in the presence of an acid, so as to make the cyclic dione copolymer alkali-soluble, andR.sup.3 is selected from the group consisting of hydrogen, C.sub.1-20 linear and branched alkyl, and C.sub.3-20 cyclic and pericyclic alkyl.