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:
Apr. 14, 2009
Filed:
Oct. 01, 2004
Machteld M. Mertens, Boortrneerbeek, BE;
Marcel J. Janssen, Kessel-Lo, BE;
Yun-feng Chang, Houston, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
Machteld M. Mertens, Boortrneerbeek, BE;
Marcel J. Janssen, Kessel-Lo, BE;
Yun-feng Chang, Houston, TX (US);
Stephen N. Vaughn, Kingwood, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
A catalyst composition for use in the conversion of oxygenates to olefins comprises a first crystalline silicoaluminophosphate molecular sieve comprising at least one intergrown form of an AEI structure type material and a CHA structure type material, and a second crystalline material different from said first molecular sieve and resulting from dehydration of an aluminophosphate or silicoaluminophosphate hydrate.