Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1994-07-28
1995-11-28
Ryan, Patrick J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428461, 428457, 428462, 428458, 428382, 428380, 174110SR, 174110PM, 174110V, B32B 900
Patent
active
054706572
ABSTRACT:
Disclosed is a heat-resistant, high-voltage insulated lead wire for direct current, which meets the demand for higher heat resistance, and its insulating coating over the conductor is formed by a polyolefin resin composition. The polyolefin resin composition is a flame-retarded resin composition comprising of a mixture of a polyethylene whose crystalline component has melting point higher than 125.degree. C. and a copolymer of ethylene and .alpha.-olefin, which contains a multifunctionalized monomer having unsaturated carbon-carbon bond moiety in the molecule as an indispensable component. The insulating coating made of this resin composition is irradiated by an ionizing radiation to give a heat-resistant, high-voltage lead wire for direct current, which has a perpendicular flame resistance (VW-1) acceptable in the UL Standards and has a temperature rating of higher than 125.degree. C.
REFERENCES:
patent: 3971884 (1976-07-01), Meeks et al.
patent: 4446254 (1984-05-01), Nakae et al.
patent: 5057367 (1991-10-01), Morri et al.
patent: 5063114 (1991-11-01), Nambu et al.
patent: 5221781 (1993-06-01), Aida et al.
Jewik Patrick R.
Ryan Patrick J.
Sumitomo Electric Industries Ltd.
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