Aqueous polyurethane/urea dispersions containing alkoxysilane groups
US5932652A · kind A · utility
12Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to aqueous polyurethane/urea dispersions wherein the polyurethane/ureas contain 0.5 to 6% by weight, based on the weight of the polyurethane/ureas, of alkoxysilane groups (calculated as Si, MW 28), which have been incorporated by the reaction of isocyanate groups with compounds containing alkoxysilane groups and aspartate groups. The present invention also relates to a process for preparing these aqueous polyurethane/urea dispersions and to coatings prepared from these aqueous polyurethane/urea dispersions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.