Degradable polymeric compositions and articles comprising same
US-2024425683-A1 · Dec 26, 2024 · US
Film
US2020032014A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020032014-A1 |
| Application number | US-201716337186-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 27, 2017 |
| Priority date | Sep 28, 2016 |
| Publication date | Jan 30, 2020 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
The invention provides a film having a high relative permittivity, a high volume resistivity, and a high breakdown strength. The film has a relative permittivity of 9 or higher at a frequency of 1 kHz and 30° C., a volume resistivity of 5E+15 Ω·cm or higher at 30° C., and a breakdown strength of 500 V/μm or higher.
First claim
Opening claim text (preview).
1 . A film having: a relative permittivity of 9 or higher at a frequency of 1 kHz and 30° C.; a volume resistivity of 5E+15 Ω·cm or higher at 30° C.; and a breakdown strength of 500 V/μm or higher. 2 . The film according to claim 1 , wherein the film has a crystallinity of 60% or higher. 3 . The film according to claim 1 , wherein the film has a half width of a crystal peak of 0.5 to 1.5 in X-ray diffraction. 4 . The film according to claim 1 , wherein the film comprises a polymer. 5 . The film according to claim 1 , wherein the film comprises a fluoropolymer having a melting point of 180° C. or higher. 6 . The film according to claim 1 , wherein the film comprises a fluoropolymer containing a vinylidene fluoride unit. 7 . The film according to claim 1 , wherein the film has a thickness of 1 to 100 μm. 8 . The film according to claim 1 , wherein the film is a highly dielectric film or a piezoelectric film. 9 . The film according to claim 1 , wherein the film is intended to be used in a film capacitor, an electrowetting device, or a piezoelectric panel.
Assignees
Inventors
Classifications
halogenated (H01G4/145 takes precedence) · CPC title
Homopolymers or copolymers of vinylidene fluoride · CPC title
of synthetic material, e.g. derivatives of cellulose (H01G4/16 takes precedence) · CPC title
Wound capacitors · CPC title
Homopolymers or copolymers of tetrafluoroethylene · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2020032014A1 cover?
- The invention provides a film having a high relative permittivity, a high volume resistivity, and a high breakdown strength. The film has a relative permittivity of 9 or higher at a frequency of 1 kHz and 30° C., a volume resistivity of 5E+15 Ω·cm or higher at 30° C., and a breakdown strength of 500 V/μm or higher.
- Who is the assignee on this patent?
- Daikin Ind Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 30 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).