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:
Oct. 01, 2013
Filed:
Mar. 14, 2008
Applicants:
Haibo Zhao, The Woodlands, TX (US);
Matthew W. Forkner, Spring, TX (US);
Wenjin Zhang, Fort Erie, CA (US);
Inventors:
Haibo Zhao, The Woodlands, TX (US);
Matthew W. Forkner, Spring, TX (US);
Wenjin Zhang, Fort Erie, CA (US);
Assignee:
Huntsman Petrochemical LLC, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process includes receiving a process stream including at least about 80.0% by weight propylene glycol, and contacting the process stream with an absorbent material to produce a product stream. The absorbent material is configured to preferentially absorb ethylene glycol relative to propylene glycol.