Electrically conductive polyether polyurethanes

H - Electricity – 01 – B

Patent

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Details

H01B 1/12 (2006.01) C08K 5/098 (2006.01)

Patent

CA 2265876

A process is disclosed for making an electrically conductive polyurethane elastomer from a polyether polyol prepolymer by blending an isocyanate terminated polyalkyleneether polyol prepolymer, preferably TDI and MDI terminated polyalkyleneether polyol, with conductive metallic salts such as CuCl2 dispersed in a prepolymer-miscible carrier, preferably tri(betachloropropyl)phosphate, thus providing a cured polymer with good conductivity while retaining its performance properties.

L'invention se rapporte à un procédé de fabrication d'un élastomère de polyuréthane conducteur d'électricité à partir d'un prépolymère de polyol de polyéther. Ledit procédé consiste à mélanger un prépolymère de polyol de polyalkylèneéther à terminaison isocyanate, de préférence un polyol de polyalkylèneéther à terminaison TDI ou MDI, avec des sels métalliques conducteurs, tels que du CuCl¿2? dispersé dans un porteur miscible avec un prépolymère, de préférence du tri(bétachloropropyl)phosphate. On obtient ainsi un polymère durci avec une bonne conductivité, qui conserve toutes ses propriétés.

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