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:
Dec. 07, 2021
Filed:
Oct. 04, 2018
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Junji Kodemura, Tokyo, JP;
Yoshitaka Satoh, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 19/08 (2006.01); C08J 3/07 (2006.01); B29C 41/00 (2006.01); B29C 41/14 (2006.01); C08F 236/08 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08J 3/07 (2013.01); B29C 41/003 (2013.01); B29C 41/14 (2013.01); C08C 19/08 (2013.01); C08F 236/08 (2013.01); B29K 2105/0064 (2013.01); C08J 2309/10 (2013.01); C08J 2409/10 (2013.01);
Abstract
A method for producing a polymer latex includes: a preparation step of reducing the weight average molecular weight of a conjugated diene polymer (A) by 20 to 70 mass %, thereby obtaining an organic solvent solution containing a conjugated diene polymer (B) having a weight average molecular weight lower than that of the conjugated diene polymer (A); and an emulsification step of emulsifying the organic solvent solution in water in the presence of a surfactant, thereby obtaining a polymer latex.