ELECTRICAL INSULATING RESIN MATERIAL, ELECTRICAL INSULATING MATERIAL, AND ELECTRIC WIRE AND CABLE USING THE SAME

Title:

ELECTRICAL INSULATING RESIN MATERIAL, ELECTRICAL INSULATING MATERIAL, AND ELECTRIC WIRE AND CABLE USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2000/015713

Kind Code:

A1

Abstract:

An electrical insulating resin material characterized in that the rein component thereof which comprises an ethylene $g(a)-olefin copolymer satisfying specific parameters, such as 0.92 to 0.96 g/cm?3¿ in terms of density, 0.01 to 200 g/10 minutes in terms of MFR, 1.0 to 5.0 in terms of molecular weight distribution (Mw/Mn), and only one (peak) in terms of the number of peaks observed in an elution temperature-eluted amount curve as measured by the temperature raising elution fractionation (TREF) method, further comprises a monomer unit selected from among a carbonyl or carbonyl-derivative group-containing monomer, a hydroxyl group-containing monomer, a nitro group-containing monomer, an aromatic ring-containing monomer and a compound or monomer containing two or more ethylenic groups; an electrical insulating material and an electric wire and cable using the same. The electrical insulating resin material suitable for use in an electrical insulating material for an electric wire and cable, since it exhibits excellent processability without detriment to mechanical strength and shows excellent electrical insulating characteristics both before and after crosslinking.

Inventors:

IKEDA MASAAKI (JP)
SHIMIZU YOSHIMI (JP)

Application Number:

PCT/JP1999/005000

Publication Date:

March 23, 2000

Filing Date:

September 14, 1999

Export Citation:

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Assignee:

JAPAN POLYOLEFINS CO LTD (JP)
IKEDA MASAAKI (JP)
SHIMIZU YOSHIMI (JP)

International Classes:

C08F255/00; C08F255/02; C08F255/08; C08L23/08; C08L51/06; H01B3/44; C08F210/16; C08L9/00; C08L21/00; C08L23/02; (IPC1-7): C08L23/26; C08F210/02; C08F255/02; H01B3/30

Foreign References:

JPH087653A	1996-01-12
JPH10212377A	1998-08-11
JPH0917235A	1997-01-17
JPH05298928A	1993-11-12
US4824906A	1989-04-25

Other References: