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:
Oct. 20, 2026
Filed:
Nov. 08, 2022
Lg Chem, Ltd., Seoul, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a method of preparing a diene-based rubbery polymer, comprising initiating and performing polymerization of monomers in the presence of an amine-based compound and a thermal decomposition initiator, wherein the amine-based compound is one or more selected from the group consisting of a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, a content of the amine-based compound is 0.03 to 0.70 parts by weight, based on 100 parts by weight of the total amount of monomers added during preparation of the diene-based rubbery polymer, the monomer may be a diene-based monomer, or a diene-based monomer and a vinyl aromatic monomer, and the polymerization is initiated at 25 to 50° C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile