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.:

US 7683139 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 23, 2010

Filed:

Jun. 28, 2005
Applicants:

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);

Inventors:

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);

Assignee:

DSM IP Assets B.V., Heerlen, NL;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 283/04 (2006.01);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Casteren Van, Ilse. (2010). Low nmp aqueous polyurethane composition with a diluent (U.S. Patent No. 7683139). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7683139

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