Water-dispersible polyurethanes
US4190566A · kind A · utility
68Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1976 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Dec 2, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7818
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to non-ionic, water-dispersible polyurethanes having a substantially linear molecular structure and lateral polyalkylene oxide polyether chains containing ethylene oxide units characterized in that from about 40 to 95% of the alkylene oxide units of the lateral polyalkylene oxide polyether chains consist of ethylene oxide units and from about 5 to 60% consist of propylene oxide, butylene oxide or styrene oxide, to aqueous dispersions of these non-ionic, water-dispersible polyurethanes and to processes for producing these non-ionic, water-dispersible polyurethanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.