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:
Sep. 19, 2006

Filed:

Jun. 07, 2005
Applicants:

Robert R. Mcelvain, Kingwood, TX (US);

John D. Hottovy, Kingwood, TX (US);

Bryan M. Garner, Friendswood, TX (US);

Gregory G. Hendrikson, Kingwood, TX (US);

John H. Tait, Stafford, TX (US);

Inventors:

Robert R. McElvain, Kingwood, TX (US);

John D. Hottovy, Kingwood, TX (US);

Bryan M. Garner, Friendswood, TX (US);

Gregory G. Hendrikson, Kingwood, TX (US);

John H. Tait, Stafford, TX (US);

Assignee:

Chevron Phillips Chemical Company LP, The Woodlands, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for transferring polymer within a polymerization system, comprising continuously withdrawing the polymer from the reactor and conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber. A method for transferring polymer within a polymerization system comprising conveying the polymer from a reactor to a flash chamber via a pressure differential between the reactor and the flash chamber and purging interstitial gases from the polymer prior to conveying the polymer from the flash chamber to a purge column. A method for transferring polymer within a polymerization system comprising conveying the polymer from a flash chamber directly to a purge column via a pressure differential between the flash chamber and the purge column.


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