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.:

US 6852881 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 08, 2005

Filed:

Jan. 24, 2001
Applicants:

Emile DE Decker, Schoten, BE;

Erik Bastiaensen, Kapellen, BE;

Dieter Baumann, Walldorf, DE;

Bernd Eck, Viernheim, DE;

Jörg Heilek, Bammental, DE;

Inventors:

Emile De Decker, Schoten, BE;

Erik Bastiaensen, Kapellen, BE;

Dieter Baumann, Walldorf, DE;

Bernd Eck, Viernheim, DE;

Jörg Heilek, Bammental, DE;

Assignee:

BASF Aktiengesellschaft, Ludwigshafen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C051/42 ;
U.S. Cl.
CPC ...
Abstract

(Meth)acrylic acid is purified by crystallization by a process in which the (meth)acrylic acid is purified by a combination of at least two different dynamic crystallization processes, in particular a suspension crystallization and a layer crystallization.


Find Patent Forward Citations

De Decker, Emile. (2005). Purification method for (meth)acrylic acid (U.S. Patent No. 6852881). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6852881

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