Title:
発泡ポリオレフィン被覆電線・ケーブルの製造方法および発泡ポリオレフィン被覆電線・ケーブル
Document Type and Number:
Japanese Patent JP7156822
Kind Code:
B2
Abstract:
To provide a method of manufacturing a foamed polyolefin coated electric wire/cable, having excellent workability with improved easy tearability and strippability, and having sufficient mechanical characteristics, and having good foamability, and to provide a foamed polyolefin coated electric wire/cable.SOLUTION: The manufacturing method includes: (1) a step of mixing at least 10 to 60 pts.wt. of a polyolefin-based resin and 40 to 90 pts.wt. of a rubber component based on 100 pts.wt. of a base resin with a crosslinking agent, a crosslinking auxiliary and a foaming agent to produce a polyolefin-based foamable resin composition; (2) a step of crosslinking the polyolefin-based foamable resin composition, obtained in the step (1), to form a crosslinked body of the polyolefin-based foamable resin composition; (3) a step of extruding the crosslinked body, obtained in the step (2), to form a coating layer comprising the crosslinked body on the outer periphery of a conductor; and (4) a step of foaming the coating layer, obtained in the step (3), so as to have a foaming ratio of 0.3 to 3%.SELECTED DRAWING: Figure 1
Inventors:
Hiroaki Muramatsu
Application Number:
JP2018101803A
Publication Date:
October 19, 2022
Filing Date:
May 28, 2018
Export Citation:
Assignee:
Yazaki Energy System Co., Ltd.
International Classes:
C08J9/04; C08L21/00; C08L23/02; H01B7/18; H01B7/295; H01B13/24
Domestic Patent References:
| JP6940367B2 | ||||
| JP2018085309A | ||||
| JP2018029016A | ||||
| JP2009520608A | ||||
| JP2004095259A |
Attorney, Agent or Firm:
Patent business corporation glory patent office