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:
Aug. 07, 2018
Filed:
Sep. 14, 2015
Lg Chem, Ltd., Seoul, KR;
Kyung Seog Youk, Daejeon, KR;
Hyun Min Lee, Daejeon, KR;
Chan Hee Lee, Daejeon, KR;
Heung Kwon Bae, Daejeon, KR;
Kwang Jin Lee, Daejeon, KR;
Kyung Hyun Kim, Daejeon, KR;
Jung Rae Lee, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a vinyl chloride polymer having good thermal stability due to the restraint of dehydrochlorination by heat or ultraviolet rays, and a method of preparing the same. The generation of the dehydrochlorination of the vinyl chloride polymer due to heat or ultraviolet rays may be markedly restrained, the thermal stability thereof may be improved, and the discoloration thereof or the modification of the physical properties thereof may be prevented. In addition, a modifier may be introduced to a polymerization process at the end of the polymerization, and high thermal stability may be attained without generating the transformation of the vinyl chloride polymer.