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. 03, 2026
Filed:
Sep. 29, 2021
Covestro Deutschland Ag, Leverkusen, DE;
Hao Liu, Shanghai, CN;
Yaguang MA, Shanghai, CN;
Na Xu, Shanghai, CN;
Tian Xia, Shanghai, CN;
Karsten Danielmeier, Solingen, DE;
Raul Pires, Cologne, DE;
Hans-Josef Laas, Odenthal, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
The invention relates to a water-dispersible modified polyisocyanate and use thereof, especially as a crosslinking component in water-soluble or water-dispersible coating compositions. The water-dispersible modified polyisocyanate can be obtained by the reaction of a system comprising a water-dispersible polyisocyanate and an isocyanate-reactive component; wherein the viscosity of the water-dispersible modified polyisocyanate is 3000 mPa·s-11000 mPa·s, which is measured with a MV-DIN rotor according to DIN EN ISO 3219:1994-10 at 23° C. and a shear rate of 10 s. The modified polyisocyanate according to the present invention has good manual stirring behavior and good dispersibility, and the coating formed by the coating composition containing the modified polyisocyanate has high gloss and good transparency.