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. 31, 2006
Filed:
May. 02, 2002
Applicants:
Ulrich Hammon, Mannheim, DE;
Bernd Eck, Viernheim, DE;
Dieter Baumann, Walldorf, DE;
Joerg Heilek, Bammental, DE;
Klaus Joachim Mueller-engel, Stutensee Blankenlock, DE;
Inventors:
Ulrich Hammon, Mannheim, DE;
Bernd Eck, Viernheim, DE;
Dieter Baumann, Walldorf, DE;
Joerg Heilek, Bammental, DE;
Klaus Joachim Mueller-Engel, Stutensee Blankenlock, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/42 (2006.01); C07D 207/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for the production of a purified melt of a monomer melt obtained by condensation, absorption or extraction in a crystallizer, wherein the inlet to the crystallizer is subjected to a mechanical solid/liquid separation operation.