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:
Nov. 23, 2021
Filed:
Jul. 26, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jae Bum Seo, Daejeon, KR;
Dae Woo Lee, Daejeon, KR;
Jung Tae Park, Daejeon, KR;
Gyu Sun Kim, Daejeon, KR;
Ji Uk Jang, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 212/08 (2006.01); C08F 220/18 (2006.01); C08F 220/44 (2006.01); C08F 2/02 (2006.01); C08F 6/10 (2006.01); C08F 6/28 (2006.01); C08F 222/40 (2006.01);
U.S. Cl.
CPC ...
C08F 212/08 (2013.01); C08F 2/02 (2013.01); C08F 6/10 (2013.01); C08F 6/28 (2013.01); C08F 220/18 (2013.01); C08F 220/44 (2013.01); C08F 222/40 (2013.01); C08F 220/1803 (2020.02);
Abstract
The present invention relates to a copolymer including 20 to 65 wt % of units derived from an alkyl styrene-based monomer; 10 to 40 wt % of units derived from a (meth)acrylate-based monomer; and 20 to 40 wt % of units derived from vinyl cyan-based monomer, based on the total weight of the copolymer, wherein the residual monomer content is 780 ppm or less, and a method for preparing the same.