GB2307106B - Polymer material for absorbing electromagnetic waves - Google Patents

Polymer material for absorbing electromagnetic waves

Info

Publication number
GB2307106B
GB2307106B GB8924800A GB8924800A GB2307106B GB 2307106 B GB2307106 B GB 2307106B GB 8924800 A GB8924800 A GB 8924800A GB 8924800 A GB8924800 A GB 8924800A GB 2307106 B GB2307106 B GB 2307106B
Authority
GB
United Kingdom
Prior art keywords
polymer material
electromagnetic waves
absorbing electromagnetic
absorbing
waves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8924800A
Other languages
English (en)
Other versions
GB2307106A (en
GB8924800D0 (en
Inventor
Mehaute Alain Le
Denis Cottevieille
Jean-Jacques Bonte
Jean-Paul Parneix
Frederic Heliodore
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB8924800D0 publication Critical patent/GB8924800D0/en
Publication of GB2307106A publication Critical patent/GB2307106A/en
Application granted granted Critical
Publication of GB2307106B publication Critical patent/GB2307106B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/004—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using non-directional dissipative particles, e.g. ferrite powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/16—EPDM, i.e. ethylene propylene diene monomer
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Aerials With Secondary Devices (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)
GB8924800A 1988-11-17 1989-11-03 Polymer material for absorbing electromagnetic waves Expired - Fee Related GB2307106B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8814939A FR2736647B1 (fr) 1988-11-17 1988-11-17 Materiau polymere pour l'absorption d'ondes electromagnetiques

Publications (3)

Publication Number Publication Date
GB8924800D0 GB8924800D0 (en) 1996-12-18
GB2307106A GB2307106A (en) 1997-05-14
GB2307106B true GB2307106B (en) 1998-01-07

Family

ID=9371930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8924800A Expired - Fee Related GB2307106B (en) 1988-11-17 1989-11-03 Polymer material for absorbing electromagnetic waves

Country Status (8)

Country Link
BE (1) BE1011412A4 (it)
CA (1) CA2003073C (it)
DE (1) DE3936196C2 (it)
FR (1) FR2736647B1 (it)
GB (1) GB2307106B (it)
IT (1) IT1267134B1 (it)
NL (1) NL8902826A (it)
NO (1) NO306888B1 (it)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996710A (en) * 1945-09-20 1961-08-15 Du Pont Electromagnetic radiation absorptive article
JPS54124298A (en) * 1978-03-20 1979-09-27 Tdk Corp Material for radio wave absorber
JPS5887142A (ja) * 1981-11-20 1983-05-24 Showa Denko Kk ポリオレフイン組成物
JPS60127366A (ja) * 1983-12-15 1985-07-08 Tounen Sekiyu Kagaku Kk 熱可塑性樹脂組成物

Also Published As

Publication number Publication date
DE3936196C2 (de) 2000-02-03
CA2003073A1 (fr) 1996-10-11
NO306888B1 (no) 2000-01-03
NO894439L (no) 1996-08-13
NL8902826A (nl) 1997-08-01
DE3936196A1 (de) 1997-02-20
BE1011412A4 (fr) 1999-09-07
IT1267134B1 (it) 1997-01-24
CA2003073C (fr) 2000-01-18
GB2307106A (en) 1997-05-14
FR2736647A1 (fr) 1997-01-17
GB8924800D0 (en) 1996-12-18
FR2736647B1 (fr) 1998-05-15
IT8967956A1 (it) 1991-05-07
IT8967956A0 (it) 1989-11-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031103