The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2015
Filed:
Nov. 21, 2012
Applicant:
Tokyo Ohka Kogyo Co., Ltd., Kawasaki, JP;
Inventors:
Assignee:
Tokyo Ohka Kogyo Co., Ltd., Kawasaki-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/039 (2006.01); C08F 2/38 (2006.01); G03F 7/004 (2006.01); C08F 28/06 (2006.01); G03F 7/11 (2006.01); G03F 7/20 (2006.01);
U.S. Cl.
CPC ...
G03F 7/004 (2013.01); C08F 28/06 (2013.01); G03F 7/0397 (2013.01); G03F 7/11 (2013.01); G03F 7/2041 (2013.01);
Abstract
A method of producing a polymeric compound, including: copolymerizing a monomer containing an —SO— containing cyclic group with a monomer containing an acid decomposable group which exhibits increased polarity by the action of acid, thereby obtaining the polymeric compound, provided that the polymeric compound comprises no structural unit derived from a monomer that generates acid upon exposure, wherein the copolymerizing is conducted in the presence of 0.001 to 1.0 mol % of a basic compound, based on the monomer containing an —SO— containing cyclic group.