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:
Aug. 03, 2021
Filed:
Mar. 05, 2018
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
Fazle Sibtain, Calgary, CA;
Christopher John Brooke Dobbin, Calgary, CA;
Kenneth Edward Taylor, Sarnia, CA;
Hamidreza Khakdaman, Calgary, CA;
P Scott Chisholm, Calgary, CA;
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/08 (2006.01); C08J 5/00 (2006.01); C08F 2/00 (2006.01); C08F 4/6592 (2006.01); B29C 41/22 (2006.01); C08F 2/06 (2006.01); B32B 3/26 (2006.01); B32B 27/32 (2006.01); C08J 5/18 (2006.01); C08L 23/20 (2006.01); B29C 41/04 (2006.01); C08F 210/16 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/34 (2006.01); C08F 4/655 (2006.01); C08F 4/658 (2006.01); C08F 4/659 (2006.01); C08L 23/14 (2006.01); B29K 23/00 (2006.01); B29K 105/00 (2006.01); C08F 210/14 (2006.01);
U.S. Cl.
CPC ...
C08L 23/0815 (2013.01); B29C 41/04 (2013.01); B29C 41/22 (2013.01); B32B 3/266 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/327 (2013.01); B32B 27/34 (2013.01); C08F 2/001 (2013.01); C08F 2/06 (2013.01); C08F 4/6555 (2013.01); C08F 4/6583 (2013.01); C08F 4/6585 (2013.01); C08F 4/6592 (2013.01); C08F 4/65904 (2013.01); C08F 210/16 (2013.01); C08J 5/00 (2013.01); C08J 5/18 (2013.01); C08L 23/08 (2013.01); C08L 23/14 (2013.01); C08L 23/20 (2013.01); B29K 2023/08 (2013.01); B29K 2105/0058 (2013.01); B29K 2105/0085 (2013.01); B29K 2105/0094 (2013.01); B29K 2905/02 (2013.01); B29K 2995/0063 (2013.01); B29K 2995/0088 (2013.01); B32B 2307/7265 (2013.01); B32B 2439/40 (2013.01); C08F 4/65908 (2013.01); C08F 4/65912 (2013.01); C08F 210/14 (2013.01); C08F 2420/01 (2013.01); C08F 2420/04 (2013.01); C08F 2500/03 (2013.01); C08F 2500/09 (2013.01); C08F 2500/11 (2013.01); C08F 2500/12 (2013.01); C08F 2500/13 (2013.01); C08F 2500/17 (2013.01); C08F 2500/18 (2013.01); C08F 2500/26 (2013.01); C08J 2323/06 (2013.01); C08J 2323/08 (2013.01); C08J 2323/20 (2013.01); C08J 2323/24 (2013.01); C08J 2423/08 (2013.01); C08J 2423/20 (2013.01); C08J 2423/24 (2013.01); C08L 2203/16 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/06 (2013.01); C08L 2314/02 (2013.01); C08L 2314/06 (2013.01);
Abstract
This disclosure relates to a continuous solution polymerization process where ethylene interpolymer products having an improved color index; for example, products having higher whiteness (Whiteness Index (WI)) and lower yellowness (Yellowness Index (YI)). Product color was improved by adjusting selected solution polymerization reaction conditions. The disclosed ethylene interpolymer products have improved color relative to comparative polyethylene compositions.