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. 10, 1990
Filed:
Nov. 29, 1988
Applicant:
Inventors:
Charles A Drake, Nowata, OK (US);
William R Parrish, Bartlesville, OK (US);
Roy C Lee, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585868 ; 585522 ; 585523 ; 585525 ;
Abstract
Olefin monomer is recovered from a liquid polymerization reaction mixture comprising olefin monomer, catalyst residue, and catalyst deactivation compounds by washing the mixture with water and then separating the organic phase and aqueous phase. The liquid mixture can also comprise soluble olefin polymer.
Drake, Charles. (1990). Olefin monomer separation process (U.S. Patent No. 4940833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4940833
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile