Patent ID: 6303268
Filing Date: 2001-10-16
Classification: C08G,C08L,G03F,Y10S

Abstract:
A resist resin comprisinga copolymer in which a polyorganosilsesquioxane structure and a (meth)acrylic-based polymer structure having a side chain decomposable with an acid to generate an organic acid group are present in one molecule, ora mixture of (co)polymers in which said structures are each present in different molecules,wherein the polyorganosilsesquioxane structure is represented by formula (1): ##STR28##wherein R.sup.1 and R.sup.2, which may be the same or different, each represent a hydrocarbon group having 1 to 10 carbon atom(s) which may be substituted with a (meth)acryloyloxy, vinyl, amino, epoxy or mercapto group, said (meth)acryloyloxy and vinyl group may form (meth)acrylic-based or vinyl-based polymer structures respectively, and a plurality of R.sup.1 or R.sup.2 present in the same molecule may be different from each other.