Resin composition for wire covering material, insulated wire, and wiring harness

Patent metadata

Field	Value
Publication number	US-9701837-B2
Application number	US-201414895427-A
Country	US
Kind code	B2
Filing date	May 29, 2014
Priority date	Jun 19, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A resin composition for a wire covering material that is excellent in high-temperature oil resistance, wear resistance, and elongation, and an insulated wire and a wiring harness in which the resin composition for a wire covering material is used as the covering material contains a (A) polysulfone-based resin, a (B) aromatic polyester resin, a (C) polyester elastomer, and a (D) compound having a reactive functional group that reacts with one of a carboxyl group and a hydroxyl group, wherein the (D) component reacts with the (B) component or the (C) component to form a bond.

First claim

The invention claimed is:

1. A resin composition for a wire covering material, the composition comprising:
a (A) polysulfone-based resin;
a (B) aromatic polyester resin;
a (C) polyester elastomer; and
a (D) compound having a reactive functional group that reacts with one of a carboxyl group and a hydroxyl group,
wherein the (D) component reacts with one of the (B) component and the (C) component to form a bond, and
wherein 1 to 40 mass % of the (B) aromatic polyester resin is contained with respect to the total mass of the (A) component and the (B) component.

2. The resin composition for a wire covering material according to claim 1 , wherein 1 to 50 mass % of the (C) polyester elastomer is contained with respect to the total mass of the (A) component and the (C) component.

3. The resin composition for a wire covering material according to claim 1 , wherein 0.01 to 5 parts by mass of the (D) compound having a reactive functional group that reacts with one of a carboxyl group and a hydroxyl group is contained with respect to 100 parts by mass of the total of the (A) component to the (C) component.

4. The resin composition for a wire covering material according to claim 1 , wherein the (A) polysulfone-based resin comprises one or two or more kinds of polysulfone-based resins selected from the group consisting of polyether sulfone and polyphenyl sulfone.

5. The resin composition for a wire covering material according to claim 1 , wherein the (B) aromatic polyester resin has a naphthyl group in a repeating unit structure.

6. The resin composition for a wire covering material according to claim 1 , wherein the (C) polyester elastomer has a melting point of 200° C. or higher.

7. An insulated wire comprising a wire covering that comprises the resin composition for a wire covering material according claim 1 .

8. A wiring harness comprising the insulated wire according to claim claim 7 .

9. The resin composition for a wire covering material according to claim 1 , wherein the combined amount of (A), (B), (C), and (D) is equal to 100% of the total amount of materials present in the resin composition.

10. The resin composition for a wire covering material according to claim 1 , wherein:
(A) is present from 30 to 98 parts by weight per 100 parts by weight of the combined amount of (A), (B) and (C);
(B) is present from 0.5 to 40 parts by weight per 100 parts by weight of the combined amount of (A), (B) and (C);
(C) is present from 0.5 to 60 parts by weight per 100 parts by weight of the combined amount of (A), (B) and (C); and
(D) is present from 0.001 to 3 parts by weight per 100 parts by weight of the combined amount of (A), (B) and (C).

11. The resin composition for a wire covering material according to claim 1 , wherein the reactive functional group in the (D) component is a carbodiimide group or an oxazoline group.

Assignees

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

Inventors

• Furukawa Toyoki
• Murao Satoshi

Classifications

• C08L2205/03

  containing three or more polymers in a blend · CPC title

• H01B3/301

  Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302 · CPC title

• H01B3/421

  Polyesters · CPC title

• C08L81/06 Primary

  Polysulfones; Polyethersulfones · CPC title

• H01B3/423

  Linear aromatic polyesters · CPC title