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:
Aug. 30, 2016
Filed:
Jun. 30, 2014
Lg Chem, Ltd., Seoul, KR;
Sung Ho Park, Daejeon, KR;
Sung Cheol Yoon, Daejeon, KR;
Sun Keun Kim, Daejeon, KR;
Jun Seok Ko, Daejeon, KR;
Sang Eun Park, Daejeon, KR;
Soo Young Choi, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present invention relates to a long-chain branched elastic terpolymer capable of satisfying excellent processability and elasticity (flexibility) at the same time, which is obtained in the presence of a Group IV transition metal catalyst, and a preparation method thereof. The elastic terpolymer is a copolymer of ethylene, an alpha-olefin having 3 to 20 carbon atoms, and a diene, wherein (i) its weight average molecular weight measured by GPC is 100,000 to 500,000, and (ii) x which is an ethylene content (% by weight) and y which is a crystallization temperature (K) of the copolymer measured when the ethylene content is X satisfy a relationship of 2.628x+100≦y≦2.628x+112.