Patent ID: 6531260
Filing Date: 2003-03-11
Classification: C07F,C08G,C08L,G03F

Abstract:
A polysiloxane having the following structural unit (III) and either or both of the following structural unit (I) or the following structural unit (II), wherein A1 and A2 individually represent a monovalent organic group having an acid-dissociable group which dissociates by the action of an acid, R1 represents a hydrogen atom, a monovalent hydrocarbon group having 1-20 carbon atoms, a monovalent halogenated hydrocarbon group having 1-20 carbon atoms, a halogen atom, or a primary, secondary, or tertiary amino group, and R2 represents a monovalent hydrocarbon group having 1-20 carbon atoms, a monovalent halogenated hydrocarbon group having 1-20 carbon atoms, a halogen atom, or a primary, secondary, or tertiary amino group, the polysiloxane having a polystyrene-reduced weight average molecular weight determined by gel permeation chromatography (GPC) in the range of 500-1,000,000;with the proviso that, when the polysiloxane does not comprise the structural unit (II), Aâ€² is represented by: â€”Pâ€”Qâ€”Zâ€²wherein P represents a single bond, a methylene group, a difluoromethylene group, an alkylene group having 2-20 carbon atoms, a fluoroalkylene group having 2-20 carbon atoms, a divalent aromatic group having 6-20 carbon atoms, or a divalent alicyclic group having 3-20 carbon atoms, Q represents â€”Oâ€” or â€”COOâ€”, and Zâ€² represents a monovalent organic group dissociating by the action of acid to produce hydrogen atoms; wherein R individually represents a hydrogen atom or a methyl group and n is an integer from 0 to 3 inclusive, the Si atom in the structural unit (I) binding with the 2 or 3 position of the uppermost bicyclo [2.2.1] heptane ring; or wherein R individually represents a hydrogen atom or a methyl group, Rf represents a hydrogen atom, a methyl group, or a trifluoromethyl group, Zâ€² represents a monovalent organic group dissociating by the action of acid to produce hydrogen atoms, and n is an integer from 0-3 inclusive, the Si atom in the structural unit (I) binding with the 2 or 3 position of the uppermost bicyclo [2.2.1] heptane ring.