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:
Jun. 09, 2020
Filed:
May. 21, 2018
Applicant:
Nova Chemicals (International) S. A., Fribourg, CH;
Inventors:
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 210/16 (2006.01); C08J 5/18 (2006.01); C08F 2/34 (2006.01); C08F 4/642 (2006.01); C08F 4/649 (2006.01); C08F 4/659 (2006.01);
U.S. Cl.
CPC ...
C08F 210/16 (2013.01); C08F 2/34 (2013.01); C08F 4/6425 (2013.01); C08F 4/6493 (2013.01); C08F 4/65916 (2013.01); C08J 5/18 (2013.01); C08F 2500/04 (2013.01); C08F 2500/08 (2013.01); C08F 2500/12 (2013.01); C08F 2500/18 (2013.01); C08F 2500/26 (2013.01); C08J 2323/08 (2013.01);
Abstract
The disclosure provides an ethylene copolymer having a density of from 0.912 g/cmto 0.925 g/cm, a melt flow ratio (I/I) of from 20 to 30, and a normal comonomer distribution profile in a GPC-FTIR analysis, wherein the normal comonomer distribution profile has a slope of from −3.5 to −7.5, where the slope is defined as the number of short chain branches per 1000 carbons at a molecular weight of 300,000 minus the number of short chain branches per 1000 carbons at a molecular weight of 30,000. The ethylene copolymers have improved bulk density and when made into film, provide good physical properties.