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:
Mar. 31, 2020
Filed:
Nov. 15, 2016
Scg Chemicals Co., Ltd., Bangkok, TH;
Mitsui Chemicals, Inc., Tokyo, JP;
Natthaporn Suchao-in, Bangkok, TH;
Kenji Iwamasa, Chiba, JP;
Eiji Shiba, Chiba, JP;
Warachad Klomkamol, Bangkok, TH;
Patcharin Samphawamontri, Bangkok, TH;
Watcharee Cheevasrirungruang, Bangkok, TH;
Shinichi Kojoh, Chiba, JP;
Yasunori Kaneko, Chiba, JP;
Takashi Fukawa, Chiba, JP;
Thipphaya Pathaweeisariyakul, Bangkok, TH;
SCG Chemicals Co., Ltd., Bangkok, TH;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
The pipe articles with excellent stress crack resistance can be achieved by providing ethylene copolymer composition comprises ethylene and a C6-C10 α-olefin comonomer; the ethylene copolymer having a total density of 0.945-0.980 g/cmand a MFRof 0.10-0.50 g/10 min; and the ethylene copolymer having a comonomer content of 1-5% wt. The ethylene copolymer has M/Min the range of not less than 14.0; gpcBR in the range of from 0.20 to 0.80; and strain hardening modulus <Gp> in the range of not less than 53.4.