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Kit for electrical wire water-sealing material, electrical wire water-sealing material, water-sealing member, water-sealed electrical wire, and water-sealing method

A water-stopping material and wire technology, applied in chemical instruments and methods, electrical components, circuits, etc., can solve problems such as reduced electrical conductivity, deterioration of wires and cables, etc.

Active Publication Date: 2015-01-21
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water from the external environment may intrude into the gap between the conductor of the exposed conductor and its coating, or between the multiple wires constituting the cable, causing a decrease in conductivity and deterioration of the wire and cable.

Method used

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  • Kit for electrical wire water-sealing material, electrical wire water-sealing material, water-sealing member, water-sealed electrical wire, and water-sealing method
  • Kit for electrical wire water-sealing material, electrical wire water-sealing material, water-sealing member, water-sealed electrical wire, and water-sealing method
  • Kit for electrical wire water-sealing material, electrical wire water-sealing material, water-sealing member, water-sealed electrical wire, and water-sealing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0209] Next, the present invention will be described in detail with reference to examples, but the present invention is not limited by these examples.

Synthetic example 1

[0210] [Synthesis example 1: Synthesis 1 of (A) urethane (meth)acrylate]

[0211] 190.51 g of 2,4-toluene diisocyanate, 268.4 g of isobornyl acrylate, 0.167 g of 2,6-di-tert-butyl-p-cresol, 0.558 g of dibutyltin dilaurate and phen Thiazine (0.056 g) was ice-cooled to a liquid temperature of 10° C. or lower while stirring these substances. 280.14 g of ring-opened polymers of propylene oxide having a number average molecular weight of 2,000 were added, and the mixture was stirred for 2 hours while controlling the liquid temperature to 35° C. or lower to perform a reaction. Next, 47.78 g of hydroxypropyl alkylate was slowly added dropwise, and after stirring for 1 hour while controlling the temperature of the liquid so that the temperature of the liquid did not reach 40° C. or higher, 178.39 g of hydroxyethyl acrylate was dropped so that the temperature did not reach 40° C. or higher. , After completion of the dropping, stirring was continued at a liquid temperature of 70 to 75°...

Synthetic example 2

[0213] [Synthesis Example 2: Synthesis of Urethane (Meth)acrylate]

[0214] 0.240 g of 2,6-di-t-butyl-p-cresol, 428.10 g of 2,4-toluene diisocyanate, and 0.799 g of dibutyltin dilaurate were added to a reaction container equipped with a stirrer, and cooled to 15° C. while stirring. After dropping 570.86 g of hydroxyethyl acrylate while controlling the liquid temperature to 20° C. or lower, it was stirred in a 40° C. water bath for 1 hour. Then, after confirming that a temperature rise was not observed, it stirred at 65 degreeC for 3 hours, and when the residual isocyanate was 0.1 mass % or less, it was regarded as completion|finish of reaction. The obtained urethane (meth)acrylate was designated as UA-2.

[0215] UA-2 has a structure in which 2-hydroxyethyl acrylate is bonded to both ends of 2,4-toluene diisocyanate.

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Abstract

A kit for preparing a water-sealing agent, a water-sealing material for an electrical wire, a water-sealed electrical wire, and a water-sealing method, which are used for insulated wires and the like. A kit for preparing water-sealing material for electrical wire comprising compositions (I) and (II), wherein the water-sealing material for electrical wire is prepared by mixing them in an arbitrary ratio. (I): a liquid composition containing one or more components selected from the following components (A) to (C), and (D), without containing (E). (II): a liquid composition containing one or more components selected from the following components (A) to (C), and (E), without containing (D). (A) a urethane (meth)acrylate, (B) a compound having one ethylenically unsaturated group, (C) a radiation polymerization initiator, (D) an organic peroxide, and (E) a polymerization promotor; and water-sealing material for electrical wire: which is a liquid curing composition containing 5 to 50% by mass of(A), 30 to 90% by mass of (B), 0.01 to 10% by mass of (C), 0.1 to 5% by mass of (D), and 0.01 to 0.5% by mass of (E).

Description

technical field [0001] The present invention relates to a water-stopping agent kit, a water-stopping material for electric wires, wires, etc., which are used for insulated wires and cables, especially telephone wires and cables, connecting wires between or in electronic equipment, wiring for automobiles or aircraft, etc. A water-stop component, a water-stop-treated electric wire and a water-stop treatment method. Background technique [0002] Insulated wires are often used for electric wires, telephone wires and cables, connecting wires between or within electronic equipment, and wiring for automobiles and aircrafts. As conductors, copper wires and aluminum wires with excellent electrical and conductive properties are used for the insulated wires. , Polyvinyl chloride (PVC) and polyethylene (PE) are used as the covering layer covering the conductor. For wires of televisions, etc., PE-coated wires or wires whose outer sheaths are made of rubber are used. In addition, PVC, p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G15/04C09K3/10H01B7/282H01B13/32H02G3/22
CPCC09K3/1021H01B7/282H02G15/013
Inventor 山口宙志高濑胜行近藤一幸黑泽孝彦
Owner JSR CORPORATIOON
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