Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1995-06-27
1997-08-12
Yoon, Tae
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
156 47, 156 51, 428392, H01H 330, H01H 900, H01H 1100
Patent
active
056563710
ABSTRACT:
An insulating composition comprising a syndiotactic polypropylene (s-PP) having a syndiotactic pentad ratio of not less than 0.7 and an MFR of 0.05-2.0 g/10 min. The composition of the present invention comprising a specific s-PP can provide an article having superior electric properties and mechanical properties. In particular, the article can retain superior electric properties and mechanical properties even after rapid cooling or gradual cooling for re-processing of said article. Accordingly, the composition of the present invention can be suitable used for insulating layer, coating layer of various power cables inclusive of high voltage wires and low voltage wires, coating layer of optical fibers and insulator of wire-connecting structures.
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Patent Abstracts of Japan, 17(42) (C-1020) (abstract of JP 04-258645) (1992).
Patent Abstracts of Japan, 17(42) (C-1020) (abstract of JP 04-258644) (1992).
Chemical Abstract, 106(12), abstract No. 91266 (1987).
Kato Hiroshi
Kawahigashi Masaki
Sugimoto Ryuichi
Uchikawa Nobutaka
Yoshino Katsumi
Mitsubishi Cable Industries Ltd.
Mitsui Toatsu Chemicals Inc.
Yoon Tae
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