Patent · US Active

Aqueous polyurethaneurea dispersion containing free acid groups

US10087294B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Hans Georg Grablowitz · Cologne, DE
Thomas Feller · Solingen, DE
Martin Kreuter · Leverkusen, DE
Petra Janßen · Kerken, DE
Ingo Gipperich · Leverkusen, DE

Key dates

Filing date	Mar 2, 2016
Grant date	Oct 2, 2018
Priority date	—
Expiry date	Dec 6, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2375/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to an aqueous polyurethaneurea dispersion, wherein the polyurethaneurea has specific formation components, and which is characterized in that it has a content of —COOH groups of at least 0.75% by weight, where 0% to 35% of these groups have been neutralized, and in that 5 to 50 mol % of isocyanate groups present have been reacted with a monofunctional component. The invention further relates to the use of this dispersion as coating composition, to a fiber having a cured coating and to a composite material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.