Polyurethane-urea resins with incorporated hydrophobic microparticle fillers
US5008325A · kind A · utility
6Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Apr 16, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/4072
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are novel, stable aqueous dispersions of ionic polyurethane-urea prepared by reacting an aliphatic or cycloaliphatic diisocyanate, an organic polyol, a large particle size hydrophobic copolymer polyol, a difunctional isocyanate reactive component, and a water dispersible amine chain extender. Also disclosed are the films and coated substrates obtained through the use of said dispersions as coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.