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. 02, 2023
Filed:
Feb. 04, 2020
Applicant:
Shin-etsu Chemical Co., Ltd., Kamisu, JP;
Inventors:
Hiroaki Saito, Kamisu, JP;
Toshihiko Kawakubo, Kamisu, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Kamisu, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 114/06 (2006.01); C08L 29/04 (2006.01); C08L 33/10 (2006.01); C08L 39/06 (2006.01); C08K 5/14 (2006.01);
U.S. Cl.
CPC ...
C08F 114/06 (2013.01); C08L 29/04 (2013.01); C08L 33/10 (2013.01); C08L 39/06 (2013.01); C08K 5/14 (2013.01); C08L 2207/53 (2013.01);
Abstract
A method for producing a vinyl polymer including a polymerization step of using a composition including a microcapsule and polymerizing a vinyl monomer by radical reaction to produce a vinyl polymer, in which the microcapsule has a core/shell structure, and the shell includes a water-soluble polymer and the core includes an organic peroxide. The water-soluble polymer is preferably at least one water-soluble polymer selected from the group consisting of polyvinyl alcohol, cellulose derivatives, gelatin, poly(meth)acrylic acid derivatives, polyvinylpyrrolidone, and polyethylene oxide.