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. 20, 2010
Filed:
Aug. 25, 2008
Russell Craig Ackerman, Katy, TX (US);
Christian Gabriel Michel, Houston, TX (US);
John Anthony Smegal, Houston, TX (US);
Johannes Anthonius Robert Van Veen, Cm Amsterdam, NL;
Russell Craig Ackerman, Katy, TX (US);
Christian Gabriel Michel, Houston, TX (US);
John Anthony Smegal, Houston, TX (US);
Johannes Anthonius Robert Van Veen, Cm Amsterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
Described is a novel amorphous silica-alumina composition having a high ratio of pore volume contained in large pores to pore volume contained in medium to small pores. The amorphous silica-alumina composition also may have the characteristic of a strong aluminum-NMR penta-coordinated peak representing greater than 30% of the total aluminum and a method of making such novel amorphous silica-alumina composition using a pH swing preparation method.