WO2008105482A1 - Dielectric elastomer composition and antenna member - Google Patents
Dielectric elastomer composition and antenna member Download PDFInfo
- Publication number
- WO2008105482A1 WO2008105482A1 PCT/JP2008/053463 JP2008053463W WO2008105482A1 WO 2008105482 A1 WO2008105482 A1 WO 2008105482A1 JP 2008053463 W JP2008053463 W JP 2008053463W WO 2008105482 A1 WO2008105482 A1 WO 2008105482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- elastomer composition
- dielectric
- dielectric elastomer
- temperature
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
Abstract
Disclosed is a dielectric elastomer composition which has excellent flame retardancy, while lowering environmental impact. This dielectric elastomer composition has dielectric characteristics sufficient for an antenna material over a wide temperature range from low temperature to high temperature. Also disclosed is an antenna member obtained by molding such a composition. Specifically disclosed is a dielectric elastomer composition obtained by blending 100-600 parts by weight of a metal hydroxide such as an aluminum hydroxide powder or a magnesium hydroxide powder per 100 parts by weight of an elastomer such as an ethylene propylene rubber. This dielectric elastomer composition has a relative dielectric constant of not less than 3 and a dielectric loss tangent of not more than 0.02 at a frequency of 400 MHz and a temperature of 30˚C. In addition, the relative dielectric constant of this composition at an arbitrary temperature within the range from -10˚C to 70˚C is within ±0.4˚C of the reference relative dielectric constant at 30˚C. Also specifically disclosed is an antenna member obtained by molding such a composition.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-050742 | 2007-02-28 | ||
JP2007050742 | 2007-02-28 | ||
JP2007-321586 | 2007-12-13 | ||
JP2007321586A JP5544066B2 (en) | 2007-02-28 | 2007-12-13 | Dielectric elastomer composition and antenna member |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008105482A1 true WO2008105482A1 (en) | 2008-09-04 |
Family
ID=39721306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/053463 WO2008105482A1 (en) | 2007-02-28 | 2008-02-28 | Dielectric elastomer composition and antenna member |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008105482A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009041507A1 (en) * | 2007-09-28 | 2009-04-02 | Ntn Corporation | Dielectric elastomer composition and high-frequency electronic component material |
JP2009096979A (en) * | 2007-09-28 | 2009-05-07 | Ntn Corp | Dielectric elastomer composition and high-frequency electronic component material |
US8357314B2 (en) | 2007-09-28 | 2013-01-22 | Ntn Corporation | Dielectric elastomer composition and high-frequency electronic component material |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62218432A (en) * | 1986-03-19 | 1987-09-25 | Sumitomo Electric Ind Ltd | Flame-retarding rubber composition |
JP2000336225A (en) * | 1999-06-01 | 2000-12-05 | Sumitomo Electric Ind Ltd | Flame retarded resin composition and electric wire/cable using same |
JP2002194149A (en) * | 2000-12-26 | 2002-07-10 | Starlite Co Ltd | Flame retardant resin material, and coated cable and laminated commodity which use the same |
JP2005333516A (en) * | 2004-05-21 | 2005-12-02 | Nec Tokin Corp | Coil antenna |
JP2006001989A (en) * | 2004-06-16 | 2006-01-05 | Ntn Corp | High dielectric elastomer composition |
-
2008
- 2008-02-28 WO PCT/JP2008/053463 patent/WO2008105482A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62218432A (en) * | 1986-03-19 | 1987-09-25 | Sumitomo Electric Ind Ltd | Flame-retarding rubber composition |
JP2000336225A (en) * | 1999-06-01 | 2000-12-05 | Sumitomo Electric Ind Ltd | Flame retarded resin composition and electric wire/cable using same |
JP2002194149A (en) * | 2000-12-26 | 2002-07-10 | Starlite Co Ltd | Flame retardant resin material, and coated cable and laminated commodity which use the same |
JP2005333516A (en) * | 2004-05-21 | 2005-12-02 | Nec Tokin Corp | Coil antenna |
JP2006001989A (en) * | 2004-06-16 | 2006-01-05 | Ntn Corp | High dielectric elastomer composition |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009041507A1 (en) * | 2007-09-28 | 2009-04-02 | Ntn Corporation | Dielectric elastomer composition and high-frequency electronic component material |
JP2009096979A (en) * | 2007-09-28 | 2009-05-07 | Ntn Corp | Dielectric elastomer composition and high-frequency electronic component material |
US8357314B2 (en) | 2007-09-28 | 2013-01-22 | Ntn Corporation | Dielectric elastomer composition and high-frequency electronic component material |
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