Global patent index - EP 1052655 A1

EP 1052655 A1 2000-11-15 - Silicone rubber compositions for high-voltage electrical insulators

Title (en)

Silicone rubber compositions for high-voltage electrical insulators

Title (de)

Silikonkautschukzusammensetzung für Hochspannungsisolatoren

Title (fr)

Caoutchouc de silicone pour isolateurs à haute tension

Publication

EP 1052655 A1 (EN)

Application

EP 00300163 A

Priority

JP 13110099 A

Abstract (en)

A mixture of a first aluminum hydroxide surface treated with a silicon-containing compound and having a mean particle size of 5-20 mu m and a second aluminum hydroxide surface treated with a silicon-containing compound and having a mean particle size of 0.1-2.5 mu m is blended in a silicone rubber composition comprising an organopolysiloxane, finely divided silica, and an organic peroxide. The silicone rubber composition cures into silicone rubber having sufficiently improved properties to serve as high-voltage electrical insulators, even when exposed to air polluted conditions or rigorous weather conditions.

IPC 1-7 (main, further and additional classification)

H01B 3/46; C08K 3/22; C08L 83/04

IPC 8 full level (invention and additional information)

H01B 3/46 (2006.01)

CPC (invention and additional information)

H01B 3/46 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1052655 A1 20001115; EP 1052655 B1 20040102; DE 60007481 D1 20040205; DE 60007481 T2 20041125

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