Flame-retardant resin composition for aluminum electric wire and aluminum electric wire using same

US9406413B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9406413-B2
Application numberUS-201213590347-A
CountryUS
Kind codeB2
Filing dateAug 21, 2012
Priority dateMar 5, 2010
Publication dateAug 2, 2016
Grant dateAug 2, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention relates to a flame-retardant resin composition for an aluminum electric wire, the resin composition comprising: a base resin containing (A) 75 to 95 parts by weight of a resin composition containing 45 to 65 parts by weight of an olefin-based resin having a tensile modulus of 1000 to 1500 MPa, 10 to 30 parts by weight of an olefin-based resin having a D hardness of 40 to 55, and 5 to 15 parts by weight of a maleic acid-modified resin and (B) 5 to 25 parts by weight of a flexible resin, and (C) 90 to 150 parts by weight of magnesium hydroxide blended into 100 parts by weight of the base resin.

First claim

Opening claim text (preview).

What is claimed is: 1. A flame-retardant resin composition for an aluminum electric wire, the resin composition comprising: a base resin containing (A) 75 to 95 parts by weight of a resin composition containing 45 to 65 parts by weight of an olefin-based resin having a tensile modulus of 1000 to 1500 MPa, 10 to 30 parts by weight of an olefin-based resin having a D hardness of 40 to 55, and 5 to 15 parts by weight of a maleic acid-modified resin and (B) 5 to 25 parts by weight of a flexible resin, which is a hydrogenated styrene-based thermoplastic elastomer, and (C) 90 to 150 parts by weight of magnesium hydroxide blended into 100 parts by weight of the base resin, wherein the flexible resin has a melt flow rate at 230° C. and 2.16 kg of 4.5 g per 10 minutes or less. 2. An aluminum electric wire comprising an aluminum conductor and an insulating coating layer which is formed of the flame-retardant resin composition for an aluminum electric wire according to claim 1 and coats the aluminum conductor. 3. The flame-retardant resin composition for an aluminum electric wire according to claim 1 , wherein the 5 to 15 parts by weight of a maleic acid-modified resin comprise 0.5 to 6.0 wt % of the base resin. 4. The flame-retardant resin composition for an aluminum electric wire according to claim 1 , wherein the 5 to 15 parts by weight of a maleic acid-modified resin comprise 2 to 3 wt % of the base resin. 5. The flame-retardant resin composition for an aluminum electric wire according to claim 1 , wherein the resin composition does not comprise either of an ethylene-vinyl acetate copolymer or an ethylene-(meth)acrylate ester copolymer.

Assignees

Inventors

Classifications

  • of metals · CPC title

  • H01B7/295Primary

    using material resistant to flame · CPC title

  • of vinyl-aromatic monomers and conjugated dienes · CPC title

  • grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond · CPC title

  • not modified by chemical after-treatment · CPC title

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What does patent US9406413B2 cover?
The invention relates to a flame-retardant resin composition for an aluminum electric wire, the resin composition comprising: a base resin containing (A) 75 to 95 parts by weight of a resin composition containing 45 to 65 parts by weight of an olefin-based resin having a tensile modulus of 1000 to 1500 MPa, 10 to 30 parts by weight of an olefin-based resin having a D hardness of 40 to 55, and 5…
Who is the assignee on this patent?
Kogo Kousuke, Yazaki Corp
What technology area does this patent fall under?
Primary CPC classification H01B7/295. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Aug 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).