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:
Jul. 21, 1981
Filed:
Aug. 14, 1979
Applicant:
Inventors:
Heinz Erpenbach, Surth bei Koln, DE;
Klaus Gehrmann, Erftstadt Lechenich, DE;
Hans-Klaus Kubbeler, Swisttal, DE;
Winfried Lork, Erftstadt Friesheim, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560205 ;
Abstract
Alkyl acrylates free from ether are made continuously by reacting acrylic acid with a C.sub.1 -C.sub.4 -alkanol, in a molar ratio of 1:1 to 1:2, in liquid phase, at 80.degree. to 130.degree. C., under 100 to 760 mm Hg, in the presence of an acid catalyst.