Composition, for use in coatings, based on a mixture of emulsion(s) and of dispersion(s) of polyol polymer and coating(s) produced therefrom
US6972308B2 · kind B2 · utility
1Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D175/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a composition comprising at least one masked or unmasked polyisocyanate in the form of an aqueous emulsion whose mean size is between 0.1 and 10 micometers; and at least one polyhydroxylated polymer, advantageously a polyol, in the form of a second aqueous dispersion whose mean size is between 10 and 200 nanometers wherein the content of polyhydroxylated polymer, advantageously of polyol, expressed in mass per cent, is at least equal to 5/6R-20, with R equal to the ratio of the mean size (d50) of the emulsion to that of the dispersion of polyhydroxylated polymer, advantageously of polyol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.