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:
Jan. 16, 2001
Filed:
Aug. 18, 1993
Applicant:
Inventors:
Hans-Josef Buysch, Krefeld, DE;
Norbert Schön, Krefeld, DE;
G{umlaut over (u)}nther Jeromin, Krefeld, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 2/379 ; C07D / ; C07C 6/800 ; C07C 4/3162 ;
U.S. Cl.
CPC ...
C07D 2/379 ; C07D / ; C07C 6/800 ; C07C 4/3162 ;
Abstract
A process for the preparation of carbonates containing aromatic ester groups is disclosed. The process entails reacting aromatic monohydroxy componds with phosgene or with chlorocarbonic acid esters of aromatic monohydroxy compounds at a temperature of 50 to 350° C. and in the presence of active carbon as catalyst.
Buysch, Hans-Josef. (2001). Process for the production of aryl carbonates (U.S. Patent No. 6175017). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6175017
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile