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.

Date of Patent:
Nov. 18, 1986

Filed:

Nov. 08, 1985
Applicant:
Inventors:

Dennis R Dembicki, Fort Saskatchewan, CA;

Frederick L Coan, Pittsburg, CA (US);

Craig L Glassford, Sarnia, CA;

Dana C Overman, Pleasant Hill, CA (US);

Assignee:

The Dow Chemical Company, Midland, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 68 ; 526 73 ;
Abstract

An improved process for recovery of ethylene from a polymerization process is described. A normally solid membrane is employed to recover an ethylene enriched gas stream from the polymerization vent gases. The ethylene enriched gas stream is recycled to the polymerization process.


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Dembicki, Dennis. (1986). Use of membranes for ethylene recovery in polymerization processes (U.S. Patent No. 4623704). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4623704

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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