Patent · US Active

Method of preparation of aqueous polyurethane-polyurea dispersion and aqueous base paint containing said dispersion

US11697747B2 · kind B2 · utility

0Cited by

5References

15Claims

0Family size

Assignee

BASF COATINGS GMBH · DE

Inventors

Hardy Reuter · Kohlenbissen, DE
Matthias BLOHM · Munster, DE
Bernhard Steinmetz · Meiningen, DE
Peggy Jankowski · Würzburg, DE
Dirk Eierhoff · Munster, DE
Thomas ZIHANG · Sendenhorst, DE

Key dates

Filing date	Sep 18, 2020
Grant date	Jul 11, 2023
Priority date	—
Expiry date	Aug 6, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D5/002
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to an aqueous polyurethane-polyurea dispersion (PD) having polyurethane-polyurea particles, present in the dispersion, having an average particle size of 40 to 2000 nm, and having a gel fraction of at least 50%, obtainable by The present invention also relates to basecoat materials comprising the dispersion (PD), and to multicoat paint systems produced using the basecoat materials.

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