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. 06, 1976
Filed:
Apr. 21, 1972
Applicant:
Inventors:
Sun W Chun, Murrysville, PA (US);
Franklin E Massoth, Valencia, PA (US);
Howard G McIlvried, McCandless Township, Allegheny County, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
2605 / ; 2605 / ; 2605 / ; 260598 ; 260599 ; 2606 / ; 2606 / ; 260602 ; 2606 / ;
Abstract
A cyclic aldol condensation process in which a silica-supported metallic tin catalyst is contacted in sequence with a carbonyl compound at an elevated temperature and with hydrogen for regeneration at a higher temperature.