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:
Jul. 04, 2017
Filed:
Apr. 06, 2016
Nova Chemicals (International) S.a., Fribourg, CH;
Celine Bellehumeur, Calgary, CA;
XiaoChuan Wang, Calgary, CA;
Tieqi Li, Calgary, CA;
Christopher John Brooke Dobbin, Calgary, CA;
Fazle Sibtain, Calgary, CA;
Kenneth Edward Taylor, Sarnia, CA;
Hamidreza Khakdaman, Calgary, CA;
NOVA Chemicals (International) S.A., Fribourg, CH;
Abstract
This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y) greater than −1.0; total catalytic metal ≧3.0 ppm; ≧0.03 terminal vinyl unsaturations per 100 carbon atoms. The ethylene interpolymer products have a melt index from about 0.5 to about 15 dg/minute, a density from about 0.930 to about 0.955 g/cm, a polydispersity (M/M) from about 2 to about 6 and a CDBIfrom about 50% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.