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:
May. 25, 1982
Filed:
Apr. 20, 1981
Applicant:
Inventors:
Wayne R Pretzer, Gibsonia, PA (US);
Richard B Pannell, Allison Park, PA (US);
Assignee:
Gulf Research & Development Company, Pittsburgh, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C07C / ;
U.S. Cl.
CPC ...
2524 / ; 252430 ; 2604 / ;
Abstract
Organic isocyanates are prepared by reacting an organic nitrocompound with carbon monoxide in the presence of a novel catalyst system. The catalyst system is comprised of a noble metal compound, a heteroaromatic nitrogen compound, and an oxide of thorium or uranium.