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. 04, 2020
Filed:
Jan. 17, 2019
Applicant:
Chevron Phillips Chemical Company Lp, The Woodlands, TX (US);
Inventors:
Qing Yang, Bartlesville, OK (US);
Tony R. Crain, Niotaze, KS (US);
George R. Rajaendran, Kingwood, TX (US);
Assignee:
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 4/6592 (2006.01); C08F 210/16 (2006.01); C08F 10/02 (2006.01); C08F 4/659 (2006.01); C07F 17/00 (2006.01); C08F 4/6392 (2006.01);
U.S. Cl.
CPC ...
C08F 10/02 (2013.01); C07F 17/00 (2013.01); C08F 4/63925 (2013.01); C08F 4/6592 (2013.01); C08F 4/65912 (2013.01); C08F 4/65916 (2013.01); C08F 4/65927 (2013.01); C08F 210/16 (2013.01); C08F 2420/01 (2013.01);
Abstract
Methods for treating solid metallocene compounds that are exposed to air are disclosed. These methods include a step of contacting the exposed solid metallocene compound with a purging gas stream containing an inert gas, and optionally, subjecting the exposed solid metallocene compound to a sub-atmospheric pressure.