Stable dispersions and the manufacture thereof
US4847320A · kind A · utility
6Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1988 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Jul 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the production of stable dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material by reacting an organic di- or polyisocyanate with a composition selected from the group consisting of polyamines containing primary and/or secondary amine groups, hydrazines, hydrazides, and mixtures thereof, in said hydroxyl-group containing material, in the presence of a dispersion stabilizing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.