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:
Aug. 20, 2002
Filed:
Aug. 24, 2000
Hartmann F. Leube, Ludwigshafen, DE;
Kurt Leidinger, Limburgerhof, DE;
Matthias Geisendörfer, Neustadt, DE;
Erich Beck, Ladenburg, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
(Meth)acrylates are prepared by esterifying a high-boiling compound having one or more alcoholic hydroxyl groups with (meth)acrylic acid in the presence of an entraining agent, such as a (cyclo)aliphatic hydrocarbon, by heating the reaction mixture to the boil and discharging the water of reaction with the entraining agent, in a substantially shorter reaction time and constant product quality, if, during the esterification reaction, the entraining agent is metered into the reaction mixture under temperature control at a rate such that the boiling point of the reaction mixture remains constant.