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:
Apr. 03, 2012
Filed:
Nov. 28, 2008
Ruediger Carloff, Darmstadt, DE;
Joachim Heid, Fraenkisch-Crumbach, DE;
Olaf Pickenaecker, Lampertheim, DE;
Ruediger Carloff, Darmstadt, DE;
Joachim Heid, Fraenkisch-Crumbach, DE;
Olaf Pickenaecker, Lampertheim, DE;
Evonik Roehm GmbH, Darmstadt, DE;
Abstract
The invention relates to a stirred-tank reactor and to a method for carrying out a polymerization reaction of unsaturated monomers using a stirred-tank reactor. According to the invention, said stirred-tank reactor is characterized in that the product discharge point is designed as the central base outlet that is at least partially traversed by the agitator shaft. Said polymerization is performed continuously under positive pressure, so that the stirred-tank reactor is operated hydrodynamically.