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:
Mar. 23, 2010
Filed:
Jun. 28, 2005
Ilse Casteren Van, Waalwijk, NL;
Marc Roelands, Waalwijk, NL;
Gerardus Cornelis Overbeek, Waalwijk, NL;
Richard George Coogan, Wilmington, MA (US);
Ronald Tennebroek, Waalwijk, NL;
Ann Kuzmin, Wilmington, MA (US);
Ilse Casteren Van, Waalwijk, NL;
Marc Roelands, Waalwijk, NL;
Gerardus Cornelis Overbeek, Waalwijk, NL;
Richard George Coogan, Wilmington, MA (US);
Ronald Tennebroek, Waalwijk, NL;
Ann Kuzmin, Wilmington, MA (US);
DSM IP Assets B.V., Heerlen, NL;
Abstract
An aqueous composition with a sediment content <5%, comprising a polyurethane dispersion wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a) <5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane, (b) at least one diluent and (c) water.