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:
Oct. 04, 2011
Filed:
Sep. 06, 2007
Michael Ferenz, Essen, DE;
Christian Eilbracht, Herne, DE;
Jutta Esselborn, Esse, DE;
Sascha Herrwerth, Essen, DE;
Gabriele Platte, Castrop-Rauxel, DE;
Michael Ferenz, Essen, DE;
Christian Eilbracht, Herne, DE;
Jutta Esselborn, Esse, DE;
Sascha Herrwerth, Essen, DE;
Gabriele Platte, Castrop-Rauxel, DE;
Evonik Goldschmidt GmbH, Essen, DE;
Abstract
The invention relates to the use of polyethers containing urethane or urea groups as foam stabilizers, obtained by reacting at least one isocyanate with (a) at least one hydrophilic polyether which statistically carries at least one OH and/or NHand/or NH function and (b) at least one hydrophobic polyether which statistically carries at least one OH and/or NHand/or NH function and optionally (c) further compounds which carry at least one OH and/or NHand/or NH function and/or other isocyanate-reactive groups, such as carboxyl or epoxide functions, with the proviso that at least one isocyanate is ≧difunctional.