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. 29, 2020
Filed:
Apr. 06, 2017
Lotte Chemical Corporation, Seoul, KR;
Byung Hun Chae, Daejeon, KR;
Hyun Yul Woo, Daejeon, KR;
Rai Ha Lee, Suwon-si, KR;
Joon Keun Min, Daejeon, KR;
Sung Won Jung, Seoul, KR;
Youn Jin Hong, Daejeon, KR;
Eun Hye Shin, Daejeon, KR;
LOTTE CHEMICAL CORPORATION, Seoul, KR;
Abstract
Disclosed is a propylene-diene copolymer resin having excellent melt tension, with improved melt strength, high molecular weight and broad molecular weight distribution by using a specific metallocene catalyst system. The present invention provides a propylene-diene copolymer resin produced by polymerizing propylene and a diene compound of C4-C20 by using a metallocene catalyst system, wherein the propylene-diene copolymer resin has the melt index (2.16 kg load at 230° C.) of 0.1-100 g/10 min and the melt tension (advanced rheometric expansion system (ARES)) of 5-100 g.