US Patent 7201970 Automobile insulated wire
Patent 7201970 was granted and assigned to Yazaki on April, 2007 by the United States Patent and Trademark Office.
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An insulated wire for an automobile coated with an insulating material which is a fire retardant polypropylene-based resin composition,wherein the fire retardant polypropylene-based resin composition comprises a polypropylene-based resin and an inorganic fire retardant at a ratio of from 80 to 20% by weight and from 20 to 80% by weight, respectively,wherein the ratio Λ(=λ/λa) of the elongation percentage at a yield point λ of the fire retardant polypropylene-based resin in the resin composition to the elongation percentage at a tensile yield point λa of the polypropylene-based resin alone satisfies the following equation (1):Λ=1−αW (1)wherein α represents a number of 0.6 or less; and W is the weight fraction of the inorganic fire retardant.
US Patent 07201970 Automobile insulated wire US Patent 7201970 Automobile insulated wire
US Patent 07201970 Automobile insulated wire
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