Catechol or pyrogallol containing flexible insulating tape havin

Details Catechol or pyrogallol containing flexible insulating tape havin Catechol or pyrogallol containing flexible insulating tape havin

1979-05-17

1981-10-20

Hess, Bruce H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

174120C, 174120SR, 260 336EP, 260 4575K, 260 4575Q, 336206, 427386, 428363, 428413, B32B 1902, B32B 2738, C08K 507, C08K 513

Patent

active

042960185

ABSTRACT:
A flexible mica tape having a low gel time is prepared from a composition of an epoxy resin, an organotin salt, and catechol or pyrogallol. A mica sheet is immersed in the composition and the solvent is evaporated to form a tack-free A-staged resin. A conductor is wound with the tape and is impregnated with an impregnating resin using vacuum-pressure impregnation.

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patent: 4178323 (1979-12-01), Chattha
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