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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.:

US 12790421 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Nov. 18, 2021

Method for preparing copolymer, copolymer prepared therefrom, and thermoplastic resin composition comprising the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Min Seung Shin, Daejeon, KR;

Hyung Sub Lee, Daejeon, KR;

Dae Woo Lee, Daejeon, KR;

Min Cheol Ju, Daejeon, KR;

Sung Won Hong, Daejeon, KR;

In Soo Kim, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Heidi R Kelley

Assistant Examiner:

Adam J Berro

Int. Cl.
CPC ...
C08F 212/10 (2006.01); C08L 25/12 (2006.01);
U.S. Cl.
CPC ...
C08F 212/10 (2013.01); C08L 25/12 (2013.01);
Abstract

The present disclosure relates to a method for preparing a copolymer, a copolymer prepared therefrom, and a thermoplastic resin composition including the copolymer. The method includes introducing and polymerizing an aromatic vinyl-based monomer, a vinyl cyan-based monomer, and an imide-based monomer, wherein the imide-based monomer is introduced at once in an amount of 1 wt % to 24 wt % before the start of polymerization, and is continuously introduced in an amount of 76 wt % to 99 wt % from the start of the polymerization.

Find Patent Forward Citations

Quick Actions:

Shin, Min. (2026). Method for preparing copolymer, copolymer prepared therefrom, and thermoplastic resin composition comprising the same (U.S. Patent No. 12790421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12790421

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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