Modified polytetrafluoroethylene particles, method for producing the same, and modified polytetrafluoroethylene molded product
US8969432B2 · kind B2 · utility
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5References
11Claims
0Family size
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Key dates
| Filing date | Jan 13, 2012 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Nov 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided are modified polytetrafluoroethylene particles having excellent moldability and processability. The modified polytetrafluoroethylene particles each have a core-shell structure that includes a particle core and a particle shell, the particle core having repeating units of tetrafluoroethylene and a comonomer (a), the particle shell having repeating units of tetrafluoroethylene and a comonomer (b), the comonomer (a) being a (perfluoroalkyl)ethylene represented by the following formula (I):CH2═CH—Rf (I)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.