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Flexible flat cable

A flat cable and flexible technology, applied in the field of flexible flat cables, can solve the problems of corrosive gas generation, plasticizer precipitation, etc., and achieve the effect of excellent electrical insulation

Inactive Publication Date: 2011-11-30
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of flexible polyvinyl chloride resin, in addition to the danger of corrosive gas and dioxins being generated if incinerated, may also precipitate plasticizers after disposal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] Using a twin-shaft mixer (45 mm φ, L / D = 42), melt-mix the components with the mixing formula shown in Example 1 in Table 1, melt-extrude in the form of strands, and then cool and cut the melted strands to make small pellets . In the resin composition described in Table 1, in 100 parts by weight of the resin component, 0.5 part by weight of oleic acid amide is mixed as a lubricant, and 1 part by weight of tetrakis [3-(3,5-bis tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester.

[0094] Eight flat conductors (flat tinned copper wires) with a width of 1.2 mm and a thickness of 0.15 mm are fed from the supply bobbin group to the concentrator, and arranged in parallel at a conductor pitch of 2.0 mm. Then, the eight flat conductors arranged in parallel were conveyed to a mold of a melt injection molding machine, and small pellets of the resin composition shown in Example 1 in Table 1 were supplied from the melt injection molding machine for insulating coating. T...

Embodiment 2～8

[0097] Each flexible flat cable was produced in the same manner as in Example 1, except that the mixing recipe of the flame-retardant resin composition in Example 1 was changed to that shown in Examples 2 to 8 in Table 1. The results are shown in Table 1.

[0098] Table 1

[0099] Example

1

2

3

4

5

6

7

8

TPU

(1) Adipate type TPU JIS hardness = A80

(2)PTMG type TPU JIS hardness=A80

(3) PC type TPU JIS hardness = A80

(4)PTMG type TPU JIS hardness=A85

(5) PC type TPU JIS hardness = A85

(6) Adipate type TPU JIS hardness = A85

(7) Adipate type TPU JIS hardness = A97

(8)PTMG type TPU JIS hardness=A98

EVA

(9) EVA-1 VA=90wt%

(10) EVA-2 VA=50wt%

(11) EVA-3 VA=41wt%

metal hydroxide

(12) Synthetic magnesium hydroxide

(13) Natural Magnesium Hydroxide

(14)Organic peroxide

(15) Cross-linking assistant

- ...

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Abstract

The invention provides a flexible flat cable which utilizes an insulation wrapping material without the content of a combing halogenous atom or a flame retardant of the halogen family and has the advantages of the high flame retardant capability which meets the UL specification, flexibility, mechanical property, heat tolerance, resistance against the aging in high temperature, resistance against the deformation during heating, a property of low temperature, electric insulation, etc. The flexible flat cable of the invention comes into being through the wrapping of a plurality of flat conductors into a whole with the insulation wrapping material. The insulation wrapping material is a flame retardant resin compound with a content of a metal hydroxide with a weight proportion of 40 to 250 in the 100 weight shares of the following resin ingredients. The resin ingredients contains a thermoplastic PU elastomer, the JIS hardness of which is measure to be less than or equal to A97 according to the JIS-K-7311, and an ethylene- vinyl acetate copolymer which contains an acetic ethylene unit with a weight percentage of 50-90%.

Description

technical field [0001] The present invention relates to a flexible flat cable which is formed by integrally insulating and overmolding a plurality of flat conductors arranged in parallel with an insulating coating material. Specifically, it relates to a flexible flat cable which does not contain Insulation coating material of halogen flame retardant, has high flame retardancy, and excellent mechanical properties, heat resistance, heat aging resistance, heat deformation resistance, low temperature characteristics (flexibility at low temperature), and electrical insulation . Background technique [0002] Insulated wires or shielded wires, insulated cables and other insulation-coated wires, the conductors of which are insulated and coated with insulating coating materials. In insulation-coated electric wires, flame retardancy is generally required in addition to insulation. Therefore, as an insulation coating material for insulation coating electric wires used for in-device w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/08H01B7/04H01B7/295H01B3/42H01B3/44C09K21/00
CPCH01B3/30H01B7/04H01B7/0838H01B7/295
Inventor 新地敦大川裕之森内清晃早味宏山崎智
Owner SUMITOMO ELECTRIC IND LTD
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