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. 16, 2013
Filed:
Nov. 30, 2011
George R. Rajaendran, Porter, TX (US);
Max P. Mcdaniel, Bartlesville, OK (US);
Gregory G. Hendrickson, Kingwood, TX (US);
John D. Stewart, Friendswood, TX (US);
John D. Hottovy, Kingwood, TX (US);
Ted H. Cymbaluk, Seabrook, TX (US);
Susannah Lane, Houston, TX (US);
Richard A. Hernandez, Houston, TX (US);
Elliott W. Johnson, Friendswood, TX (US);
Qing Yang, Bartlesville, OK (US);
William L. Valerioti, Houston, TX (US);
Eric Schwerdtfeger, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
George R. Rajaendran, Porter, TX (US);
Max P. McDaniel, Bartlesville, OK (US);
Gregory G. Hendrickson, Kingwood, TX (US);
John D. Stewart, Friendswood, TX (US);
John D. Hottovy, Kingwood, TX (US);
Ted H. Cymbaluk, Seabrook, TX (US);
Susannah Lane, Houston, TX (US);
Richard A. Hernandez, Houston, TX (US);
Elliott W. Johnson, Friendswood, TX (US);
Qing Yang, Bartlesville, OK (US);
William L. Valerioti, Houston, TX (US);
Eric Schwerdtfeger, Bartlesville, OK (US);
Albert P. Masino, Tulsa, OK (US);
Chevron Phillips Chemical Company LP, The Woodlands, TX (US);
Abstract
Methods for removing polymer skins or build-up from reactor walls in polymerization reactor systems containing a loop slurry reactor are disclosed. Such methods can employ removing some or all of the comonomer from the reactor system in combination with increasing the polymerization temperature of the loop slurry reactor.