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:
Nov. 27, 2012
Filed:
Feb. 26, 2009
Uwe Meisenburg, Mannheim, DE;
Frank Hoefer, Bad Duerkheim, DE;
Reinhold Schwalm, Wachenheim, DE;
Nick Gruber, Mannheim, DE;
Lothar Karrer, Pfungstadt, DE;
Uwe Meisenburg, Mannheim, DE;
Frank Hoefer, Bad Duerkheim, DE;
Reinhold Schwalm, Wachenheim, DE;
Nick Gruber, Mannheim, DE;
Lothar Karrer, Pfungstadt, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Process for preparing (meth)acrylates of C-alcohol mixtures, by reacting (meth)acrylic acid with an isomer mixture of C-alcohols composed of 2-propylheptanol as the main isomer and at least one of the C-alcohols 2-propyl-4-methylhexanol, 2-propyl-5-methylhexanol, 2-isopropylheptanol, 2-isopropyl-4-methylhexanol, 2-isopropyl-5-methylhexanol and/or 2-propyl-4,4-dimethylpentanol, in the presence of at least one acidic catalyst and of at least one polymerization inhibitor and in the presence of a solvent which forms an azeotrope with water, the azeotrope is distilled off and condensed, and the condensate splits into an aqueous phase and an organic phase, wherein