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:
Sep. 02, 2025
Filed:
Feb. 04, 2021
Applicant:
Zeon Corporation, Tokyo, JP;
Inventor:
Keisuke Kojima, Tokyo, JP;
Assignee:
ZEON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08C 1/15 (2006.01); B29C 48/00 (2019.01); B29C 48/395 (2019.01); C08J 3/16 (2006.01); C08K 5/13 (2006.01); C08L 33/20 (2006.01); B29K 33/18 (2006.01);
U.S. Cl.
CPC ...
C08C 1/15 (2013.01); B29C 48/022 (2019.02); B29C 48/397 (2019.02); C08J 3/16 (2013.01); C08K 5/13 (2013.01); C08L 33/20 (2013.01); B29K 2033/18 (2013.01);
Abstract
A method for producing a nitrile rubber, includes recovering a nitrile rubber from a latex of nitrile rubber by continuously feeding the latex of nitrile rubber and a coagulant into an extruder including a screw disposed inside a barrel to be rotatably driven, wherein the latex of nitrile rubber fed into the extruder contains 0.1 to 3 parts by weight of a hindered phenol-based antiaging agent having a molecular weight of 300 to 3000 relative to 100 parts by weight of the nitrile rubber.
Kojima, Keisuke. (2025). Method for producing nitrile rubber (U.S. Patent No. 12404350). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12404350
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile