The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 27, 2024

Filed:

Jun. 01, 2020
Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Yutaka Matsumura, Osaka, JP;

Shigeyuki Tanaka, Osaka, JP;

Taro Fujita, Osaka, JP;

Takaya Kohori, Kanuma, JP;

Takumi Ooshima, Kanuma, JP;

Jo Yagisawa, Kanuma, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/02 (2006.01); C09D 5/18 (2006.01); C09D 123/06 (2006.01); C09D 123/08 (2006.01); H01B 3/44 (2006.01); H01B 7/00 (2006.01); H01B 7/295 (2006.01);
U.S. Cl.
CPC ...
H01B 7/0009 (2013.01); C09D 5/18 (2013.01); C09D 123/06 (2013.01); C09D 123/0869 (2013.01); H01B 3/441 (2013.01); H01B 7/295 (2013.01);
Abstract

A core electric wire for a multicore cable. The core electric wire includes a conductor composed of a plurality of elemental wires twisted together and an insulating layer coating a circumference of the conductor. The insulating layer includes a first component and a second component, the first component being high density polyethylene, the second component being at least one selected from the group consisting of a copolymer of ethylene and an α-olefin having a carbonyl group, and very-low density polyethylene. The first component has a content ratio of 10% by mass or more and 60% by mass or less to a total content of the polyethylene-based resin, and the second component has a content ratio of 20% by mass or more and 80% by mass or less to the total content of the polyethylene-based resin.


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