Claims
- 1. A dielectric polymer material consisting essentially of approximately 25 to approximately 90 mol% of vinylidene fluoride, approximately 5 to approximately 70 mol% of ethylene trifluoride, approximately 3 to approximately 10 mol% of ethylene chloride trifluoride, and up to about 3 mol% of another fluorine-containing monomer said material having a dielectric constant of at least about 20 over at least a fifty celcius degree temperature range between room temperature and 100.degree. C., said material having a difference between maximum and minimum dielectric constant values less than about 13 over said fifty degree range.
- 2. The dielectric polymer material according to claim 1, wherein vinylidene fluoride is present in an amount of approximately 30 to approximately 85 mol%.
- 3. The dielectric polymer material according to claim 1, wherein ethylene trifluoride is present in an amount of approximately 10 to approximately 65 mol%.
- 4. The dielectric polymer material of claim 1 in the form of a sheet or film.
- 5. The dielectric polymer material according to claim 4 wherein said film has been drawn or stretched.
Priority Claims (1)
Number |
Date |
Country |
Kind |
55-56817 |
Apr 1980 |
JPX |
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CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 398,192, filed July 14, 1982, now abandoned, which is a continuation-in-part of application Ser. No. 256,839, filed Apr. 23, 1981, now abandoned.
US Referenced Citations (3)
Continuations (1)
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Number |
Date |
Country |
Parent |
398192 |
Jul 1982 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
256839 |
Apr 1981 |
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