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:
Mar. 16, 1993
Filed:
Oct. 28, 1991
Applicant:
Inventors:
James D McCullough, Jr, Houston, TX (US);
Isreal G Burstain, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 78 ;
Abstract
An improved process for making changes in polymer product type in an ongoing olefin polymerization process without undue disruption of the ongoing polymerization process comprises adding to the polymerization reactor a hydrogenation catalyst and sufficient molecular hydrogen to hydrogenate the unreacted olefin monomer, subsequently removing hydrogenated product and hydrogenation catalyst while resuming polymerization to produce polymer product of changed type upon addition to the reactor of olefin feed appropriate for production of such polymer product of changed type.