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:
Oct. 03, 2023
Filed:
Oct. 28, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Kwang Jin Lee, Daejeon, KR;
Yang Jun Jeon, Daejeon, KR;
Jae Hyun Park, Daejeon, KR;
Hyun Kyou Ha, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 14/06 (2006.01); C08K 3/26 (2006.01); C08K 5/12 (2006.01);
U.S. Cl.
CPC ...
C08F 14/06 (2013.01); C08K 3/26 (2013.01); C08K 5/12 (2013.01); C08K 2003/262 (2013.01);
Abstract
The present disclosure relates to a vinyl chloride-based polymer having a pH of 7 to 11 and satisfying the number of olefin-type defects (N) of 1.5 or less and the number of chloro-type defects (N) of 11.0 or less. The vinyl chloride-based polymer contains reduced defects in the entire polymer and may suppress dehydrochlorination reaction or crosslinking reaction during processing, and effects of preventing discoloration phenomenon, improving heat resistance and preventing the deterioration of physical properties may be expected.