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:
Dec. 26, 2023
Filed:
Jul. 13, 2017
Evonik Operations Gmbh, Essen, DE;
Michael Klostermann, Essen, DE;
Martin Glos, Borken, DE;
Jan Marian Von Hof, Bochum, DE;
Verena Dahl, Bergisch Gladbach, DE;
Christian Eilbracht, Herne, DE;
Oliver Springer, Wesel, DE;
Hans Henning Wenk, Mülheim an der Ruhr, DE;
Evonik Operations GmbH, Essen, DE;
Abstract
The invention relates to a process for producing a porous polyurethane coatings, using a polyol ester as additives in an aqueous polymer dispersion, the process comprising the steps of a) providing a mixture comprising an aqueous polymer dispersion, a polyol ester, and an additive, b) foaming the mixture to give a homogeneous, fine-cell foam, c) adding at least one thickener to establish the desired viscosity of the wet foam, d) applying a coating of the foamed polymer dispersion to a suitable carrier, e) drying the coating. The invention further relates to a phosphorylated polyol ester.