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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 12698413 B1

PDFFull Text
Date of Patent:
Aug. 04, 2026

Filed:

Aug. 26, 2022

Aqueous polyurethane-urea dispersion

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Yingdan Zhu, Shanghai, CN;

Huimin Ye, Shanghai, CN;

Shifeng Tang, Shanghai, CN;

Mingming Yu, Shanghai, CN;

Yuan Li, Shanghai, CN;

Hongliang Song, Shanghai, CN;

Changjing Jiang, Shanghai, CN;

Assignee:

Covestro Deutschland AG, Leverkusen, DE;

Attorney:

The Webb Law Firm

Primary Examiner:

Cheng Yuan Huang

Int. Cl.
CPC ...
C09D 175/12 (2006.01); C08G 18/10 (2006.01); C08G 18/34 (2006.01); C08G 18/38 (2006.01); C08G 18/42 (2006.01); C08G 18/44 (2006.01); C08G 18/66 (2006.01); C08G 18/72 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C09D 11/102 (2014.01); C09D 11/30 (2014.01); C09D 175/02 (2006.01);
U.S. Cl.
CPC ...
C09D 175/12 (2013.01); C08G 18/10 (2013.01); C08G 18/348 (2013.01); C08G 18/3857 (2013.01); C08G 18/4238 (2013.01); C08G 18/4277 (2013.01); C08G 18/44 (2013.01); C08G 18/6659 (2013.01); C08G 18/722 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 18/758 (2013.01); C09D 11/102 (2013.01); C09D 11/30 (2013.01); C09D 175/02 (2013.01);
Abstract

The present invention relates to an aqueous polyurethane-urea dispersion including polyurethane-urea and a preparation method and use thereof, especially in the field of coating compositions, binders or inks, and a product obtained by coating, bonding, sealing or printing with the aqueous polyurethane-urea dispersion. The polyurethane-urea of the aqueous polyurethane-urea dispersion including polyurethane-urea is obtained by the reaction of a system including the following components: a polyisocyanate, a polycarbonate polyol with a hydroxyl functionality of 1.9-2.1, a polyester polyol with a hydroxyl functionality of 1.9-2.1, an amino-containing compound, a hydroxyl-containing carboxylic acid and a neutralizer, where the weight ratio of the polycarbonate polyol to the polyester polyol is 6:1-20:1. The aqueous polyurethane-urea dispersion of the present invention has small particle size, narrow particle size distribution, good color rendering, hydrolysis resistance and color fastness to rubbing, and can be used as a binder for inkjet inks.

Find Patent Forward Citations

Zhu, Yingdan. (2026). Aqueous polyurethane-urea dispersion (U.S. Patent No. 12698413). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12698413

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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