Title:
オレフィン系樹脂組成物および被覆電線
Document Type and Number:
Japanese Patent JP4795528
Kind Code:
B2
Abstract:
There is provided an olefin-based resin composition applied to the coatings of electrical cables used in automobiles. The coatings have neatly balanced properties to satisfy product requirements, such as wear and flame resistance, tensile strength, flexibility, and heat and freeze resistance. The olefin-based resin composition comprises: (i) a polymeric material in an amount of 100 parts by weight which includes: (a) a propylene-type polymer portion (b) a polyolefin portion treated with maleic acid anhydride; and (c) an olefin-type polymer portion; and (ii) a metal hydroxide product. The propylene-type polymer portion (a) comprises at least one propylene polymer having a melt flow rate of 5g/10 min. at the most, and accounts for a proportion of 50 to 95% by weight of the polymeric material (i). The polyolefin portion treated with maleic acid anhydride (b) comprises at least one polyolefin, a proportion of 0.1 to 10% by weight of which is structurally modified through maleic acid anhydride treatment, and the polyolefin portion accounts for a proportion of 1 to 20% by weight of the polymeric material (i). The olefin-type polymer portion (c) comprises at least one ethylene- alpha -olefin copolymer, and accounts for 5 to 40% by weight of the polymeric material (i). The metal hydroxide product (ii) comprises at least one metal hydroxide in an amount of 30 to 200 parts by weight relative to the polymeric material (i).
Inventors:
Tatsuya Hase
Koji Fujimoto
Masashi Sato
Koji Fujimoto
Masashi Sato
Application Number:
JP2000364859A
Publication Date:
October 19, 2011
Filing Date:
November 30, 2000
Export Citation:
Assignee:
SUMITOMO WIRING SYSTEMS,LTD.
Sumitomo Electric Industries, Ltd.
Sumitomo Electric Industries, Ltd.
International Classes:
C08L23/10; C08K3/22; C08K9/06; C08L23/12; H01B3/00; H01B3/44; H01B7/17; H01B7/295; C08L23/08; C08L51/06; C08L53/00
Domestic Patent References:
| JP7182930A | ||||
| JP6283030A | ||||
| JP7252388A | ||||
| JP11116828A | ||||
| JP200086858A |
Attorney, Agent or Firm:
Mitsuo Tanaka
Samejima Mutsumi
Yasuo Shibata
Samejima Mutsumi
Yasuo Shibata