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:
Apr. 09, 2019
Filed:
Nov. 18, 2015
Lg Chem, Ltd., Seoul, KR;
Won Hee Kim, Daejeon, KR;
Hyo Jin Bae, Daejeon, KR;
Kyoung Hwan Oh, Daejeon, KR;
Woo Jin Cho, Daejeon, KR;
Jeong Heon Ahn, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention provides a method for preparing a conjugated diene-based polymer including preparing a mixture of a molecular weight modifier and a conjugated diene-based monomer; and polymerization reacting the mixture using a catalyst composition including a lanthanide rare earth element-containing compound, modified methylaluminoxane, a halogen compound and an aliphatic hydrocarbon-based solvent, and therefore, capable of preparing a conjugated diene-based polymer having a high cis-1,4-bond content ratio, high linearity and narrow molecular weight distribution.