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:
Oct. 28, 2003
Filed:
May. 31, 2001
Applicant:
Inventors:
Sergio Castillon Miranda, Altafulla, ES;
Carmen Claver Cabrero, Altafulla, ES;
Elena Fernandez Gutierrez, Tarragona, ES;
Pilar Salagre Carnero, Reus, ES;
Marc Serra Queralt, Tarragona, ES;
Pedro Uriz Sola, Tarragona, ES;
Assignee:
Repsol Quimica, S.A., Madrid, ES;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
The procedure consists of the catalytic thermal decomposition of a carbamate in the presence of natural or synthetic carbamates as catalysts. Isocyanates with high yields and high reaction speeds are formed selectively.