Covering material for electric wire, insulated electric wire, and wiring harness

Patent metadata

Field	Value
Publication number	US-9484126-B2
Application number	US-201314075537-A
Country	US
Kind code	B2
Filing date	Nov 8, 2013
Priority date	Jun 2, 2011
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A covering material for electric wire, and an insulated electric wire and a wiring harness including the same, wherein the wire including the covering material has a reduced diameter, is inserted into a connector. The covering material containing a polyvinyl chloride having, with respect to 100 parts by mass of the polyvinyl chloride, 10 to 20 parts by mass of a plasticizer, 1 to 6 parts by mass of a chlorinated polyethylene, and 1 to 6 parts by mass of an MBS resin, and a total amount of the chlorinated polyethylene and the MBS resin is 2 to 7 parts by mass. The wire has an external diameter of smaller than 1.1 mm, and has a conductor 1 and an insulator 2 that covers the conductor 1 . The insulator 2 is made of the covering material, and has a thickness of 0.25 mm or smaller.

First claim

The invention claimed is:

1. A covering material for electric wire containing a polyvinyl chloride, wherein
the covering material comprises, with respect to 100 parts by mass of the polyvinyl chloride:
10 to 20 parts by mass of a plasticizer;
1 to 6 parts by mass of a chlorinated polyethylene; and
1 to 6 parts by mass of an MBS resin,

a total amount of the chlorinated polyethylene and the MBS resin is 2 to 7 parts by mass, and
a resin content of the covering material consists of the polyvinyl chloride, the MBS resin and the chlorinated polyethylene.

2. The covering material according to claim 1 , wherein the plasticizer comprises one or more selected from a phthalate ester plasticizer, a trimellitate ester plasticizer, a pyromellitate ester plasticizer, and an aliphatic ester plasticizer.

3. An insulated electric wire having an external diameter of smaller than 1.1 mm, the wire comprising:
a conductor; and
an insulator that covers the conductor, the insulator
having a thickness of 0.25 mm or smaller, and
being made of the covering material according to claim 2 .

4. A wiring harness comprising the insulated electric wire according to claim 3 .

5. An insulated electric wire having an external diameter of smaller than 1.1 mm, the wire comprising:
a conductor; and
an insulator that covers the conductor, the insulator
having a thickness of 0.25 mm or smaller, and
being made of the covering material according to claim 1 .

6. A wiring harness comprising the insulated electric wire according to claim 5 .

7. The covering material according to claim 1 , wherein the covering material comprises, with respect to 100 parts by mass of the polyvinyl chloride:
2 to 5 parts by mass of a chlorinated polyethylene; and
2 to 5 parts by mass of an MBS resin.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Wiring Systems
• Sumitomo Electric Industries

Inventors

• Furukawa Toyoki
• Sato Masashi
• Nakamura Masahiro

Classifications

• H01B3/443 Primary

  from vinylhalogenides or other halogenoethylenic compounds · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title

• C08K5/12

  of cyclic polycarboxylic acids · CPC title

• C08L51/04

  grafted on to rubbers · CPC title

• C08L27/06

  Homopolymers or copolymers of vinyl chloride · CPC title