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. 30, 2020
Filed:
Sep. 05, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Seong Yong Ahn, Daejeon, KR;
Kun Ji Kim, Daejeon, KR;
Se Woong Lee, Daejeon, KR;
Hyun Kyou Ha, Daejeon, KR;
Seong Jae Shin, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 14/06 (2006.01); C08F 2/02 (2006.01); C08K 5/524 (2006.01); C08F 2/44 (2006.01); C08F 2/01 (2006.01); C08F 2/00 (2006.01);
U.S. Cl.
CPC ...
C08F 14/06 (2013.01); C08F 2/001 (2013.01); C08F 2/02 (2013.01); C08F 2/44 (2013.01); C08K 5/524 (2013.01);
Abstract
The present invention relates to a method of preparing a vinyl chloride-based polymer, which comprises bulk-polymerizing a vinyl chloride-based monomer in the presence of an initiator (Step 1); and preparing a vinyl chloride-based polymer after the bulk polymerization (Step 2), wherein a phosphite is added in the step 1, a vinyl chloride-based polymer, and a vinyl chloride-based polymer composition comprising the vinyl chloride-based polymer.