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:
May. 27, 2014
Filed:
Sep. 29, 2011
Dick Nagaki, The Woodlands, TX (US);
Craig Peterson, Houston, TX (US);
Mark Scates, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Josefina T. Chapman, Houston, TX (US);
Alexandra S. Locke, West Valley City, UT (US);
Dick Nagaki, The Woodlands, TX (US);
Craig Peterson, Houston, TX (US);
Mark Scates, Houston, TX (US);
Heiko Weiner, Pasadena, TX (US);
Josefina T. Chapman, Houston, TX (US);
Alexandra S. Locke, West Valley City, UT (US);
Celanese International Corporation, Dallas, TX (US);
Abstract
In one embodiment, the invention is to a catalyst composition comprising vanadium and titanium. The catalyst composition further comprises ethylene glycol and citric acid. Preferably, the catalyst composition is substantially free of oxalic acid and lactic acid.