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:
Feb. 16, 2021
Filed:
Sep. 11, 2017
Thai Polyethylene Co., Ltd., Bangkok, TH;
Scg Chemicals Co., Ltd., Bangkok, TH;
Chatchai Jarumaneeroj, Bangkok, TH;
Saranya Traisilanun, Bangkok, TH;
Watcharee Cheevasrirungruang, Bangkok, TH;
Piyawan Tiyapiboonchaiya, Bangkok, TH;
Thai Polyethylene Co., Ltd., Bangkok, TH;
SCG Chemicals Co., Ltd., Bangkok, TH;
Abstract
The present inventions relates to a multimodal polyethylene composition comprising; (A) 30 to 65 parts by weight, preferably 30 to 50 parts by weight, most preferred 30 to 40 parts by weight of the low molecular weight polyethylene having a weight average molecular weight (Mw) of 20,000 to 90,000 g/mol or medium molecular weight polyethylene having a weight average molecular weight (Mw) of more than 90,000 to 150,000 g/mol; (B) 5 to 40 parts by weight, preferably 10 to 35 parts by weight, most preferred 15 to 35 parts by weight, of the first high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the first ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol; and (C) 10 to 60 parts by weight, preferably 15 to 60 parts by weight, most preferred 20 to 60 parts by weight of the second high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 150,000 to 1,000,000 g/mol or the second ultra high molecular weight polyethylene having a weight average molecular weight (Mw) of more than 1,000,000 to 5,000,000 g/mol, wherein a MIof the multimodal polyethylene composition is less than 2.0 g/10 min, and a Charpy impact strength at 23° C. the of multimodal polyethylene composition is at least 70 kJ/m, preferably 70 to 120 kJ/m, measured by ISO 179, a sheet comprising the multimodal polyethylene composition as well as the use of the sheet.