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. 15, 2005
Filed:
Aug. 28, 2002
Applicants:
Robert C. Bening, Katy, TX (US);
Zaida Diaz, Houston, TX (US);
Inventors:
Robert C. Bening, Katy, TX (US);
Zaida Diaz, Houston, TX (US);
Assignee:
KRATON Polymers U.S. LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F236/06 ; C08F008/36 ;
U.S. Cl.
CPC ...
Abstract
Removing silicon species from hydrocarbon solvents such as cyclohexane. The process comprises contacting the hydrocarbon solvent with sulfuric acid in an amount sufficient to phase separate the silicon species and removing at least 20% by weight of the residual silicon species from the hydrocarbon solvent. The hydrocarbon solvent may be a polymerization solvent containing residual silicon species, and more than 80% by weight of the silicon species can be removed.