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. 09, 2001
Filed:
Nov. 08, 1999
Applicant:
Inventors:
Wim Herman Verrelst, Edegem, BE;
Luc Roger Marc Martens, Meise, BE;
Johannes Petrus Verduijn, Leefdaal, BE;
Assignee:
Exxon Mobil Chemical Patents, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 2/02 ; B01J 2/406 ; B01J 2/100 ;
U.S. Cl.
CPC ...
C07C 2/02 ; B01J 2/406 ; B01J 2/100 ;
Abstract
A molecular sieve comprising a core having deposited thereon a surface layer, wherein the core is a zeolite containing silicon and at least one element selected from gallium and iron and the surface layer has a higher Si:Al ratio than that of the silicon:selected element ratio of the core, provides for lower branching in olefin oligomerization products.