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:
Apr. 01, 2003
Filed:
Jan. 11, 2002
Applicant:
Inventors:
Assignee:
Roehm GmbH & Co., KG, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/702 ;
U.S. Cl.
CPC ...
C07C 6/702 ;
Abstract
Acrylic or methacrylic acid esters may be efficiently prepared by the transesterification of a C to C alcohol ester of acrylic or methacrylic acid and a different alcohol in the presence of a mixture of a) an alkali metal cyanate or alkali metal thiocyanate, and b) an alkaline earth metal oxide, an alkaline earth metal hydroxide or an alkali metal halide.