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:
Dec. 27, 1994
Filed:
May. 04, 1993
Applicant:
Inventors:
Philip W Dellinger, Lake Jackson, TX (US);
Rebecca G Moore, Lake Jackson, TX (US);
Fred A Sherrod, Lake Jackson, TX (US);
Allen R Smith, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502304 ; 502218 ; 502241 ; 502243 ; 502439 ;
Abstract
A calcined dehydrogenation catalyst comprising at least one sodium compound and one calcium compound is disclosed. The catalyst exhibits improved moisture stability as evidenced by improved crush strength and resistance to swelling and cracking.