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:
Mar. 04, 2014
Filed:
Nov. 23, 2010
Virginie Bette, Mannheim, DE;
Jochen Petzoldt, Weisenheim am Berg, DE;
Boris Breitscheidel, Limburgerhof, DE;
Virginie Bette, Mannheim, DE;
Jochen Petzoldt, Weisenheim am Berg, DE;
Boris Breitscheidel, Limburgerhof, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for preparing (meth)acrylates of C-alcohol mixtures by reacting (meth)acrylic acid with a C-alcohol mixture in the presence of at least one acidic catalyst and of at least one polymerization inhibitor and in the presence of a solvent which, with water, forms an azeotrope in which the esterification is performed in a reactor with a circulation evaporator, the azeotrope is distilled off and condensed, and the condensate splits into an aqueous phase and an organic phase, wherein the C-alcohol mixture has a mean degree of branching (iso index) of 2.8 to 3.7.