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:
Feb. 17, 2015
Filed:
Jul. 18, 2012
Vinit Chilekar, Tervuren, BE;
Oliver Bey, Niederkirchen, DE;
Andreas Brodhagen, Tiefenthal, DE;
Achim Loffler, Speyer, DE;
Fatemeh Admadnian, Ludwigshafen, DE;
Ralf Bohling, Lorsch, DE;
Christoph Grossmann, Grunstadt, DE;
Ulrich Kammel, Kapellen, BE;
Ronald Adelmann, Darmstadt, DE;
Thomas Ostrowski, Mannheim, DE;
Milind Joshi, Ludwigshafen, DE;
Gerrit Waters, Karlsruhe, DE;
Dirk Meckelnburg, Limburgerhof, DE;
Vinit Chilekar, Tervuren, BE;
Oliver Bey, Niederkirchen, DE;
Andreas Brodhagen, Tiefenthal, DE;
Achim Loffler, Speyer, DE;
Fatemeh Admadnian, Ludwigshafen, DE;
Ralf Bohling, Lorsch, DE;
Christoph Grossmann, Grunstadt, DE;
Ulrich Kammel, Kapellen, BE;
Ronald Adelmann, Darmstadt, DE;
Thomas Ostrowski, Mannheim, DE;
Milind Joshi, Ludwigshafen, DE;
Gerrit Waters, Karlsruhe, DE;
Dirk Meckelnburg, Limburgerhof, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for a continuous production of a polyetherol first involves reacting a catalyst () with an alcohol starter () or an alkoxylated precursor, to give a mixture comprising an alcoholate and water. Water is then removed from the mixture. The process further involves feeding the alcoholate into a bubble column and feeding an alkylene oxide into the bottom of a compartment of the bubble column, such that the alkylene oxide rises in the alcoholate. The alkylene oxide then reacts with the alcoholate or a secondary product from the reaction between the alcoholate and alkylene oxide, to give the polyetherol.