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:
Jun. 02, 2009
Filed:
Dec. 11, 2007
Applicants:
Fritz Pohl, Brunsbuttel, DE;
Klaus Biskup, Leverkusen, DE;
Rainer Bruns, Leverkusen, DE;
Friedhelm Steffens, Leverkusen, DE;
Herbert Stutz, Dormagen, DE;
Inventors:
Fritz Pohl, Brunsbuttel, DE;
Klaus Biskup, Leverkusen, DE;
Rainer Bruns, Leverkusen, DE;
Friedhelm Steffens, Leverkusen, DE;
Herbert Stutz, Dormagen, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 263/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An isocyanate is produced by reacting a primary amine with phosgene in the gas phase above the boiling point of the amine over an average contact time of 0.05 to 15 seconds under adiabatic conditions.