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Title:
COMPOSITION FOR WIRE COVERING MATERIALS, INSULATED WIRE AND WIRING HARNESS
Document Type and Number:
WIPO Patent Application WO/2019/181398
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a composition for wire covering materials, which is a silane crosslinkable polyolefin composition having excellent flame retardancy, and which has excellent flexibility, while exhibiting excellent fusion resistance and excellent thermal deformation resistance; and an insulated wire and a wiring harness, each of which uses this composition for wire covering materials. A composition for wire covering materials according to the present invention contains (A) a silane-grafted polyolefin which is obtained by graft-polymerizing a silane coupling agent to a polyolefin, (B) an unmodified polyolefin, (C) a modified polyolefin which has one or more functional groups selected from among a carboxyl group, an ester group, an acid anhydride group, an amino group and an epoxy group, (D) a flame retardant and (E) a crosslinking catalyst, while being configured such that: the polyolefin of the silane-grafted polyolefin (A) before silane grafting has a density of 0.855-0.890 g/cm3 and a melting point of 80°C or higher; and the unmodified polyolefin (B) has a density of 0.855-0.950 g/cm3.

Inventors:
SHIMADA TATSUYA (JP)
Application Number:
PCT/JP2019/007483
Publication Date:
September 26, 2019
Filing Date:
February 27, 2019
Export Citation:
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Assignee:
AUTONETWORKS TECHNOLOGIES LTD (JP)
SUMITOMO WIRING SYSTEMS (JP)
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C08L51/00; C08F255/00; C08K3/22; C08K3/24; C08K13/00; C08L23/02; C08L23/26; H01B3/44
Domestic Patent References:
WO2009008537A12009-01-15
WO2016084613A12016-06-02
WO2016175076A12016-11-03
Foreign References:
JP2016181413A2016-10-13
JP2011168697A2011-09-01
JP2010174157A2010-08-12
JP2017174551A2017-09-28
JP2008234883A2008-10-02
JP2018154679A2018-10-04
Attorney, Agent or Firm:
WENO & PARTNERS (JP)
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