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. 07, 2020
Filed:
May. 22, 2018
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Justin Wade Kamplain, Bartlesville, OK (US);
Elizabeth Mary Lanier, Bartlesville, OK (US);
Assignee:
Chevron Phillips Chemical Comany LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/08 (2006.01); C08K 5/134 (2006.01); C08K 5/526 (2006.01); B01J 21/06 (2006.01); B01J 23/26 (2006.01); C08K 3/08 (2006.01); C08K 3/32 (2006.01); C08K 5/098 (2006.01); C08K 5/13 (2006.01); C08F 210/16 (2006.01);
U.S. Cl.
CPC ...
C08L 23/0815 (2013.01); B01J 21/063 (2013.01); B01J 23/26 (2013.01); C08K 3/08 (2013.01); C08K 3/32 (2013.01); C08K 5/098 (2013.01); C08K 5/13 (2013.01); C08K 5/1345 (2013.01); C08K 5/526 (2013.01); C08F 210/16 (2013.01); C08F 2500/01 (2013.01); C08F 2500/04 (2013.01); C08F 2500/12 (2013.01); C08L 2201/08 (2013.01); C08L 2207/062 (2013.01); C08L 2207/066 (2013.01); C08L 2314/04 (2013.01);
Abstract
Polymer compositions containing a titanated chromium-based ethylene polymer, 150-350 ppm of zinc stearate and/or calcium stearate, 50-5000 ppm of a phenolic antioxidant, 200-3000 ppm of a diphosphite antioxidant, and optionally, 200-3000 ppm of a monophosphite antioxidant, are described. These polymer compositions have improved long-term color stability, as well as lower levels of color formation after aging.