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. 27, 2017
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 method of preparing a vinyl chloride polymer having good thermal stability by restraining a dehydrochlorination reaction due to heat or ultraviolet rays, and a vinyl chloride polymer prepared thereby. According to the preparation method, the adding point of a modifier is controlled, and a vinyl chloride polymer markedly restraining the generation of dehydrochloric acid due to heat or ultraviolet rays may be prepared. Therefore, the preparation method of the vinyl chloride polymer via the emulsion polymerization and the vinyl chloride polymer prepared thereby in the present invention may be readily applied to industries requiring the vinyl chloride polymer such as industries concerning a vinyl chloride resin and a molded article.