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:
Feb. 25, 2020
Filed:
Nov. 02, 2016
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jae Bum Seo, Daejeon, KR;
Chang Hun Han, Daejeon, KR;
Dae Woo Lee, Daejeon, KR;
Jung Tae Park, Daejeon, KR;
Gyu Sun Kim, Daejeon, KR;
Assignee:
LG Chem, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 212/10 (2006.01); C08F 6/10 (2006.01); C08F 2/38 (2006.01); C08F 2/04 (2006.01); C08F 2/44 (2006.01);
U.S. Cl.
CPC ...
C08F 212/10 (2013.01); C08F 2/04 (2013.01); C08F 2/38 (2013.01); C08F 2/44 (2013.01); C08F 6/10 (2013.01); C08F 2800/20 (2013.01);
Abstract
The present invention relates to a method of preparing a styrene-based resin having a low oligomer content and a styrene-based resin prepared thereby. The preparation method according to the present invention may prepare a styrene-based resin having a reduced oligomer content by using a polymerization initiator having a 1 hour half-life temperature, which is 5° C. to 25° C. lower than a temperature during polymerization, and controlling devolatilization conditions.