Stable aqueous dispersions of particles of vinylidene fluoride polymer
US4309328A · kind A · utility
11Cited by
8References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Nov 28, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Coating compositions based on stable aqueous dispersions of particles of vinylidene fluoride polymer are prepared by bringing into admixture unstabilized particles of vinylidene fluoride polymer, liquid organic active solvent for the vinylidene fluoride polymer, liquid nonsolvent, which may be liquid organic nonsolvent, water or a combination of liquid organic nonsolvent and water, and, if not present in the liquid nonsolvent, water. The mixing is conducted such that the particles of vinylidene fluoride polymer are wetted by the dispersion vehicle, yet the particles are not substantially solubilized by the active solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.