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:
Jul. 23, 2013
Filed:
Dec. 09, 2010
Applicants:
Gunter Lipowsky, Ladenburg, DE;
Steffen Rissel, Kirchheim, DE;
Volker Schliephake, Schifferstadt, DE;
Ulrich Jäger, Römerberg, DE;
Sylke Haremza, Neckargemünd, DE;
Inventors:
Gunter Lipowsky, Ladenburg, DE;
Steffen Rissel, Kirchheim, DE;
Volker Schliephake, Schifferstadt, DE;
Ulrich Jäger, Römerberg, DE;
Sylke Haremza, Neckargemünd, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 69/54 (2006.01); C07C 7/05 (2006.01); C07C 7/20 (2006.01); C07C 53/15 (2006.01); B01D 3/42 (2006.01); B01D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters by introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylic ester, in which the (meth)acrylic acid and/or the (meth)acrylic ester has a degree of purity of at least 95% and is in the liquid state.