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:
Dec. 25, 2018
Filed:
Aug. 28, 2015
Hanwha Chemical Corporation, Seoul, KR;
Ui Gab Joung, Daejeon, KR;
Dong Ok Kim, Seoul, KR;
Dong Wook Kim, Daejeon, KR;
Ah Reum Kim, Gyeonggi-do, KR;
Hye Ran Park, Gyeongsangbuk-do, KR;
Kil Sagong, Daejeon, KR;
Sung Hae Jun, Gyeonggi-do, KR;
Chun Sun Lee, Gyeonggi-do, KR;
Eun Yeong Hwang, Gyeonggi-do, KR;
HANWHA CHEMICAL CORPORATION, Seoul, KR;
Abstract
The present invention relates to a novel group 4 transition metal compound, a method for preparing the compound, a catalyst composition containing the compound, and a method for preparing a polyolefin, comprising a step for forming a polymerization reaction of olefin monomers in the presence of the catalyst composition. The group 4 transition metal compound of the present invention exhibits an excellent catalytic activity and has excellent thermal stability in a polyolefin synthesis reaction, and thus can be used even in a polyolefin synthesis reaction at a high temperature. In addition, the compound of the present invention can be advantageously used in the synthesis process of grade-controlled polyolefin since the weight average molecular weight of the synthesized polyolefin and the octane content in the polymer can be adjusted by varying the kinds of center metal and ligand.