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:
Aug. 10, 2021
Filed:
Nov. 02, 2017
Applicant:
Zeon Corporation, Tokyo, JP;
Inventors:
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08C 2/06 (2006.01); C08C 3/00 (2006.01); C08C 19/00 (2006.01); C08L 9/10 (2006.01); B29C 41/00 (2006.01); B29C 41/14 (2006.01); B65D 65/42 (2006.01); C09D 109/10 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
C08L 9/10 (2013.01); B29C 41/003 (2013.01); B29C 41/14 (2013.01); B65D 65/42 (2013.01); C08C 2/06 (2013.01); C08C 3/00 (2013.01); C08C 19/00 (2013.01); C09D 109/10 (2013.01); B29K 2105/0064 (2013.01); C08L 2201/52 (2013.01); C08L 2205/025 (2013.01); C08L 2312/00 (2013.01);
Abstract
A method for producing a synthetic polyisoprene latex, including a step of mixing a latex of synthetic polyisoprene (A) synthesized by use of a Ziegler type catalyst and a latex of synthetic polyisoprene (B) synthesized by use of an organic alkali metal catalyst at a weight ratio of 'synthetic polyisoprene (A): synthetic polyisoprene (B)=10:90 to 90:10'. In the method, preferably, the weight average molecular weight of the synthetic polyisoprene (A) is 100,000 to 3,000,000 and the weight average molecular weight of the synthetic polyisoprene (B) is 1,000,000 to 5,000,000.