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. 04, 1999
Filed:
Feb. 13, 1997
Applicant:
Inventors:
Pieter Ooms, Krefeld, DE;
Hans-Josef Buysch, Krefeld, DE;
Steffen Kuhling, Meerbusch, DE;
Gottfried Zaby, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
558274 ; 558271 ; 558272 ; 558273 ;
Abstract
The present invention relates to a process for the continuous production of carbonates having aromatic ester groups by the reaction of aromatic hydroxy compounds with phosgene in the presence of heterogeneous catalysts, phosgene still present being removed from the stream of waste gas by returning the waste gas to an additional reactor.
Ooms, Pieter. (1999). Process for the continuous production of aryl carbonates (U.S. Patent No. 5900501). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5900501
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile