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. 27, 2010
Filed:
Feb. 15, 2006
Applicants:
Jörg Heilek, Bammental, DE;
Klaus Joachim Müller-engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Martin Dieterle, Mannheim, DE;
Inventors:
Jörg Heilek, Bammental, DE;
Klaus Joachim Müller-Engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Martin Dieterle, Mannheim, DE;
Assignee:
BASF Akiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for removing methacrylic acid from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component in which the removal is effected by crystallization, the acrylic acid accumulating in the crystals formed and the methacrylic acid in the remaining mother liquor.