Production method for polyvinylidene fluoride aqueous dispersion liquid, and polyvinylidene fluoride aqueous dispersion liquid
US10150820B2 · kind B2 · utility
1Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Jan 6, 2014 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Apr 13, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention aims to provide a production method that can produce an aqueous dispersion containing polyvinylidene fluoride with high productivity. The present invention relates to a method of producing an aqueous dispersion of polyvinylidene fluoride, including: emulsion polymerization of vinylidene fluoride in the presence of a surfactant, an organic peroxide, and water to produce an aqueous dispersion that contains polyvinylidene fluoride. The surfactant has a surface tension of 55 mN/m or smaller when added in an amount of 1000 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.