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:
Oct. 13, 2009
Filed:
Feb. 22, 2006
Applicants:
Joerg Heilek, Bammental, DE;
Klaus Joachim Mueller-engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Martin Dieterle, Mannheim, DE;
Inventors:
Joerg Heilek, Bammental, DE;
Klaus Joachim Mueller-Engel, Stutensee, DE;
Christoph Adami, Weinheim, DE;
Martin Dieterle, Mannheim, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for removing methacrolein from liquid phase P comprising acrylic acid as a main constituent and target product, and methacrolein as a secondary component in which the removal is effected by crystallization, the acrylic acid accumulating in the crystals formed and the methacrolein in the remaining mother liquor.