Aqueous dispersions of polyurethane/ureas containing alkoxysilane groups and colloidal silicas
US5859118A · kind A · utility
12Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to aqueous dispersions which contain PA1 A) 30 to 90% by weight, based on the solids content of A) and B), of polyurethane/ureas containing 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28) and PA1 B) 10 to 70% by weight, based on the solids content of A) and B), of colloidal silica. The present invention relates to coatings prepared from these aqueous dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.