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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 10934370 B1

PDFFull Text
Date of Patent:
Mar. 02, 2021

Filed:

Mar. 29, 2016

Hybrid supported metallogen catalyst, method for preparing olefin polymer by using same, and olefin polymer having improved melt strength

Applicant:

Hanwha Chemical Corporation, Seoul, KR;

Inventors:

Ah Ra Cho, Daejeon, KR;

Ah Reum Kim, Sejong-si, KR;

Lan Hua Piao, Seoul, KR;

Jun Ho Seo, Daejeon, KR;

Song Hee Yang, Incheon, KR;

So Jung Lee, Daejeon, KR;

Yu Jeong Lim, Busan, KR;

Dong Wook Jeong, Daejeon, KR;

Seung Il Choi, Jeollanam-do, KR;

Assignee:

HANWHA CHEMICAL CORPORATION, Seoul, KR;

Attorney:

RatnerPrestia

Primary Examiner:

Fred M Teskin

Int. Cl.
CPC ...
C08F 4/6592 (2006.01); C08F 210/16 (2006.01); B01J 31/22 (2006.01); C08F 4/659 (2006.01); C08F 10/02 (2006.01); C08F 10/06 (2006.01); C08F 10/08 (2006.01); C08F 10/14 (2006.01);
U.S. Cl.
CPC ...
C08F 4/65925 (2013.01); B01J 31/2295 (2013.01); C08F 210/16 (2013.01); B01J 2231/12 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 10/02 (2013.01); C08F 10/06 (2013.01); C08F 10/08 (2013.01); C08F 10/14 (2013.01); C08F 2500/01 (2013.01); C08F 2500/04 (2013.01); C08F 2500/07 (2013.01); C08F 2500/12 (2013.01);
Abstract

The invention relates to: a hybrid supported metallocene catalyst includes at least one first metallocene compound among the compounds represented by chemical formula 1, at least one second metallocene compound among the compounds represented by chemical formula 2 and a cocatalyst compound; a method for preparing an ethylene-α-olefin copolymer, comprising polymerizing olefin monomers in the presence thereof; and an ethylene-α-olefin copolymer having improved melt strength.

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