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. 13, 2013
Filed:
Nov. 17, 2008
Dieter Boeckh, Limburgerhof, DE;
Stefan Frenzel, Mannheim, DE;
Christian Bittner, Bensheim, DE;
Andrea Misske, Speyer, DE;
Ulrich Annen, Hassloch, DE;
Wilfried Sager, Mutterstadt, DE;
Sophia Ebert, Mannheim, DE;
Andreas Eichhorn, Ellerstadt, DE;
Dieter Boeckh, Limburgerhof, DE;
Stefan Frenzel, Mannheim, DE;
Christian Bittner, Bensheim, DE;
Andrea Misske, Speyer, DE;
Ulrich Annen, Hassloch, DE;
Wilfried Sager, Mutterstadt, DE;
Sophia Ebert, Mannheim, DE;
Andreas Eichhorn, Ellerstadt, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a process for the alkoxylation of a first polymer comprising at least one monomer unit having NH groups and optionally NHgroups, wherein the first polymer has a molecular weight Mof at least 500 g/mol, comprising the steps of (a) reacting the first polymer with alkylene oxide in a reaction mixture comprising a solvent until the average degree of alkoxylation of each NH group and each optional NHgroup, calculated as two NH groups, is from 0.75 to 1.25; (b) adding a second polymer of formula (I), wherein R is a linear or branched alkyl group having from 1 to 20 carbon atoms, each R' is independently a linear or branched alkyl group having from 1 to 20 carbon atoms or hydrogen, each n is independently from 1 to 5 and m is from 5 to 40, to the reaction mixture of step (a); (c) at least partially removing the solvent from the reaction mixture of step (b); and (d) further reacting the reaction mixture of step (c) with alkylene oxide at a given temperature until the average degree of alkoxylation of each NH group and each optional NHgroup, calculated as two NH groups, of the first polymer is from 2 to 40. The present invention also relates to a polymer composition obtainable from that process and the use of such a polymer composition.