C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 110/06 (2006.01) C08L 23/12 (2006.01) H01B 3/30 (2006.01) H01B 3/44 (2006.01)
Patent
CA 2152632
An insulating composition comprising a syndiotactic polypropylene (s-PP) having a syndiotactic pentad ratio of not less than 0.7 and an MFR of 0.05-20 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.
Kato Hiroshi
Kawahigashi Masaki
Sugimoto Ryuichi
Uchikawa Nobutaka
Yoshino Katsumi
Fetherstonhaugh & Co.
Mitsubishi Cable Industries Ltd.
Mitsui Chemicals Incorporated
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