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:
Sep. 27, 2005
Filed:
Nov. 18, 2003
Agapios Kyriacos Agapiou, Humble, TX (US);
Robert Olds Hagerty, La Porte, TX (US);
F. David Hussein, Cross Lanes, WV (US);
Michael Elroy Muhle, Kingwood, TX (US);
Richard B. Pannell, Kingwood, TX (US);
Kathryn Ann Russell, Seabrook, TX (US);
Robert Lynn Santana, Baytown, TX (US);
X. Simon Zhang, London, GB;
Agapios Kyriacos Agapiou, Humble, TX (US);
Robert Olds Hagerty, La Porte, TX (US);
F. David Hussein, Cross Lanes, WV (US);
Michael Elroy Muhle, Kingwood, TX (US);
Richard B. Pannell, Kingwood, TX (US);
Kathryn Ann Russell, Seabrook, TX (US);
Robert Lynn Santana, Baytown, TX (US);
X. Simon Zhang, London, GB;
Univation Technologies, LLC, Houston, TX (US);
Abstract
Processes for transitioning among polymerization catalyst systems, preferably catalyst systems that are incompatible with each other. In particular, the processes relate to transitioning from olefin polymerizations utilizing metallocene catalyst systems to olefin polymerizations utilizing traditional Ziegler-Natta catalyst systems.