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US 2006/0134416 A1Published application
Flame retardant electrical wire
OwnerHiroshi Kubo, Vijay Mhetar +4inventors
InventorsHiroshi Kubo, Vijay Mhetar, Vijay Rajamani, Sho Sato, Xiangyang Tai, Weiguang Yao
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Abstract
An electrical wire comprising conductor and a covering disposed over the conductor. The covering comprises a thermoplastic composition. The thermoplastic composition comprises a poly(arylene ether); a polypropylene, a block copolymer; and an organophosphate ester. The sum of weighted average aryl alkylene content of the block copolymer and the amount of organophosphate ester is greater than or equal to 46.5.
Claims27
An electrical wire comprising:
- a conductor;
- and
- a covering disposed over the conductor wherein the covering comprises a thermoplastic composition and the thermoplastic composition comprises:
- (i) a poly(arylene ether) in an amount by weight;
- (ii) a polypropylene in an amount by weight;
- (iii) a block copolymer, wherein the block copolymer has a weighted average aryl alkylene content (B);
- and
- (iv) an organophosphate ester, wherein the organophosphate ester is present in an amount (A) in weight percent based on the combined weight of poly(arylene ether), polypropylene, block copolymer and organophosphate ester;
- wherein the amount of organophosphate ester (A), and the weighted average aryl alkylene content of the block copolymer (B) satisfy the formula:
- A+B≧46.5;
- and
- wherein the amount of polypropylene by weight is less than the amount of poly(arylene ether) by weight based on the total amount of polypropylene and poly(arylene ether) in the thermoplastic composition.
9 more elements
An electrical wire comprising
- a conductor;
- and
- a covering disposed over the conductor wherein the covering comprises a thermoplastic composition and the thermoplastic composition comprises:
- (i) a poly(arylene ether) in an amount by weight;
- (ii) a polypropylene in an amount by weight;
- (iii) a block copolymer having a weighted average aryl alkylene content (B);
- and
- (iv) an organophosphate ester comprising an amount of phosphorous (C), in weight percent based on the combined weight of poly(arylene ether), polypropylene, block copolymer and organophosphate ester,
- wherein the amount of phosphorous (C) and the weighted average aryl alkylene content of the block copolymer (B) satisfy the formula:
- C+B≧31.7 and wherein the amount of polypropylene by weight is less than the amount of poly(arylene ether) by weight based on the total amount of polypropylene and poly(arylene ether) in the thermoplastic composition.
7 more elements
An electrical wire comprising
- a conductor;
- and
- a covering disposed over the conductor wherein the covering comprises a thermoplastic composition and the thermoplastic composition consists essentially of:
- (i) a poly(arylene ether) in an amount by weight;
- (ii) a polypropylene in an amount by weight;
- (iii) a block copolymer having a weighted average aryl alkylene content (B);
- and
- (iv) an organophosphate ester comprising an amount of phosphorous (C), in weight percent based on the combined weight of poly(arylene ether), polypropylene, block copolymer and organophosphate ester,
- wherein the amount of phosphorous (C) and the weighted average aryl alkylene content of the block copolymer (B) satisfy the formula:
- C+B≧31.7 and
- wherein the amount of polypropylene by weight is less than the amount of poly(arylene ether) by weight based on the total amount of polypropylene and poly(arylene ether) in the thermoplastic composition.
8 more elements
Dependencies are inferred from the claim text.