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:
Nov. 08, 2005
Filed:
Jan. 09, 2002
Applicants:
Michel Daumerie, Houston, TX (US);
Douglas A. Berti, Nassau Bay, TX (US);
Jose Sosa, Deer Park, TX (US);
Aron T. Griffith, Humble, TX (US);
Inventors:
Michel Daumerie, Houston, TX (US);
Douglas A. Berti, Nassau Bay, TX (US);
Jose Sosa, Deer Park, TX (US);
Aron T. Griffith, Humble, TX (US);
Assignee:
Fina Technology, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F002/06 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus are disclosed for purifying copolymer compounds having monovinyl aromatic blocks and conjugated diene blocks by reducing the residual monomer content of the finished polymer. The method and apparatus includes a combination of heat exchangers and devolatilizers used in conjunction with a copolymerization reactor system.