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:
Feb. 11, 1992
Filed:
Jun. 19, 1991
Applicant:
Inventors:
Pei-Shing E Dai, Port Arthur, TX (US);
David E Sherwood, Jr, Port Arthur, TX (US);
Bobby R Martin, Beaumont, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208111 ; 208144 ; 208213 ; 2082 / ; 2082 / ;
Abstract
A novel treated charge zeolite is prepared by treating charge zeolite (which is essentially free of Secondary Pores) with steam for 5-60 hours at 1000.degree. F.-1500.degree. F. Product is particularly characterized by increased Secondary Pore Volume (pores of diameter of 100A-600A) in amount of as high as 0.20 cc/g.