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.

Date of Patent:
Apr. 29, 2003

Filed:

Aug. 11, 2000
Applicant:
Inventors:

Dennis Stamires, Newport Beach, CA (US);

Paul O'Connor, Hoevelaken, NL;

Gregory Pearson, Seabrook, TX (US);

William Jones, Cambridge, GB;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/340 ; B01J 2/342 ; B01J 2/300 ; B01J 2/356 ; B01J 2/344 ;
U.S. Cl.
CPC ...
B01J 2/340 ; B01J 2/342 ; B01J 2/300 ; B01J 2/356 ; B01J 2/344 ;
Abstract

A microcrystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group consisting of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. The microcrystalline boehmite according to the invention may be prepared in several ways. In general, a microcrystalline boehmite precursor and an additive are converted to a microcrystalline boehmite containing the additive in a homogeneously dispersed state. The additive does not contain zirconia or magnesia.


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