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AssigneesSumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorsMasashi Sato, Tatsuya Hase, Hiroshi Fujimoto
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There is provided an olefin-based resin composition which may be applied to the coatings of electrical cables used in automobiles. The coatings have neatly balanced properties to satisfy product requirements, such as wear and flame resistance, tensile strength, flexibility, and heat and freeze resistance. The olefin-based resin composition includes: (i) a polymeric material in an amount of 100 parts by weight which includes: (a) about 50 to 95 parts by weight of propylene polymer portion including at least one propylene polymer having a melt flow rate of up to about 5 g/10 min; (b) about 1 to 20 parts by weight of at least one polyolefin, a proportion of about 0.1 to 10% by weight of which is structurally modified through maleic acid anhydride treatment; and (c) about 5 to 40 parts by weight of olefin-based apolymer portion including at least one ethylene-α-olefin copolymer; and (ii) about 30 to 200 parts by weight of at least one metal-hydroxide, wherein the at least one metal hydroxide is treated with silane coupling agent.
An olefin-based resin composition comprising:
An olefin-based resin composition which is substantially free of halogen, said olefin-based resin composition comprising:
An electrical cable coated with an olefin-based resin composition, said olefin-based resin composition comprising:
Dependencies are inferred from the claim text.