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Title:
STAR POLYMER, ACID-DECOMPOSABLE RESIN COMPOSITION, RESIST COMPOSITION AND DI(METH)ACRYLATE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2006/016648
Kind Code:
A1
Abstract:
Disclosed is a star polymer having a core portion derived from a compound represented by the following formula (I): (I) (wherein R1 and R2 respectively represent a hydrogen atom or an alkyl group having 1-4 carbon atoms; A represents a divalent or higher-valent organic linking group having no acetal structure; B represents a divalent or higher-valent organic linking group having an acetal structure or a ketal structure; and n1-n4 respectively represent an integer of not less than 1). The star polymer has an acetal structure which is thermally stable and can be easily mass-produced, and is readily cleavable by an acid.

Inventors:
MARUMO SHINJI (JP)
Application Number:
PCT/JP2005/014740
Publication Date:
February 16, 2006
Filing Date:
August 11, 2005
Export Citation:
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Assignee:
NIPPON SODA CO (JP)
MARUMO SHINJI (JP)
International Classes:
C08F20/20; C07C69/54
Domestic Patent References:
WO2005022260A12005-03-10
Foreign References:
JP2004091757A2004-03-25
JP2002338535A2002-11-27
JP2000063327A2000-02-29
JPH1129617A1999-02-02
JPH07505915A1995-06-29
JPS63132914A1988-06-04
JPS62297306A1987-12-24
Attorney, Agent or Firm:
Shiga, Masatake (Yaesu Chuo-ku, Tokyo 53, JP)
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