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:
Feb. 03, 2026
Filed:
Oct. 11, 2022
Applicant:
Toyobo MC Corporation, Osaka, JP;
Inventor:
Yoshiyuki Kitagawa, Otsu, JP;
Assignee:
TOYOBO MC CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/00 (2019.01); B29C 48/16 (2019.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/023 (2019.02); B29C 48/16 (2019.02); B29C 2948/92695 (2019.02); B29K 2023/12 (2013.01); B29K 2023/18 (2013.01);
Abstract
According to the method of the present invention, poly-4-methyl-1-pentene with a lower molecular weight can be easily and safely produced by mixing poly-4-methyl-1-pentene and another type of polyolefin (I) and conducting melt-stirring at a temperature equal to or higher than the melting points of both the poly-4-methyl-1-pentene and the polyolefin (I).
Kitagawa, Yoshiyuki. (2026). Method for producing poly-4-methyl-1-pentene with lower molecular weight (U.S. Patent No. 12539656). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12539656
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile