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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.:

US 10934399 B1

PDFFull Text
Date of Patent:
Mar. 02, 2021

Filed:

Jan. 26, 2017

Polymer latex production method

Applicant:

Zeon Corporation, Tokyo, JP;

Inventors:

Hidetake Ishii, Tokyo, JP;

Junji Kodemura, Tokyo, JP;

Assignee:

ZEON CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Megan McCulley

Int. Cl.
CPC ...
C08J 3/07 (2006.01); C08L 53/02 (2006.01); B29C 41/00 (2006.01); C08J 5/02 (2006.01); C08F 36/08 (2006.01); C08C 1/075 (2006.01); B60C 1/00 (2006.01); C08F 297/04 (2006.01); C08F 6/20 (2006.01); C08J 3/05 (2006.01); C08K 5/098 (2006.01); B29C 41/14 (2006.01);
U.S. Cl.
CPC ...
C08J 3/07 (2013.01); B29C 41/00 (2013.01); B60C 1/00 (2013.01); C08C 1/075 (2013.01); C08F 6/20 (2013.01); C08F 36/08 (2013.01); C08F 297/044 (2013.01); C08F 297/046 (2013.01); C08J 3/05 (2013.01); C08J 5/02 (2013.01); C08K 5/098 (2013.01); C08L 53/02 (2013.01); B29C 41/14 (2013.01); C08J 2309/00 (2013.01); C08J 2309/06 (2013.01); C08J 2353/00 (2013.01);
Abstract

A method for producing a polymer latex, including an emulsification step of emulsifying a polymer solution obtained by dissolution of synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer having a molecular weight distribution of 1.0 to 2.6 in an organic solvent, in water in the presence of a surfactant, to thereby obtain an emulsified liquid, wherein as the synthetic polyisoprene and/or styrene-isoprene-styrene block copolymer, used are/is synthetic polyisoprene and/or a styrene-isoprene-styrene block copolymer which, when dissolved in an organic solvent to thereby be formed into a polymer solution having a viscosity at a temperature of 60° C. of 20,000 cps, have/has a solid content concentration in the range of 10 to 60% by weight.

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