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:
Jun. 13, 2023
Filed:
Aug. 30, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/26 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 48/91 (2019.01); H01M 50/446 (2021.01); B29C 55/00 (2006.01); B29C 55/12 (2006.01); C08J 9/36 (2006.01); C08L 23/06 (2006.01); C08L 51/00 (2006.01); H01M 10/0525 (2010.01); H01M 50/443 (2021.01); B29K 23/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
C08J 9/26 (2013.01); B29C 48/0018 (2019.02); B29C 48/022 (2019.02); B29C 48/08 (2019.02); B29C 48/91 (2019.02); B29C 55/005 (2013.01); B29C 55/12 (2013.01); C08J 9/365 (2013.01); C08L 23/06 (2013.01); C08L 51/003 (2013.01); H01M 10/0525 (2013.01); H01M 50/443 (2021.01); H01M 50/446 (2021.01); B29K 2023/065 (2013.01); B29L 2031/3468 (2013.01); C08J 2201/042 (2013.01); C08J 2323/06 (2013.01); C08J 2351/08 (2013.01); C08J 2423/06 (2013.01); C08J 2451/08 (2013.01); C08L 2203/20 (2013.01); C08L 2312/08 (2013.01);
Abstract
A method for manufacturing a crosslinked polyolefin separator and the crosslinked polyolefin separator obtained therefrom are provided. The method includes non-grafted polyolefin having a weight average molecular weight of 300,000 or more and silane-grafted polyolefin having a weight average molecular weight of 300,000 or more. The method minimizes gel formation, a side reaction occurring in an extruder during the manufacture of the separator, and provides the separator having a uniform surface.