Antistatic molded article comprising a polyesteramide resin

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 69/44 (2006.01)

Patent

CA 2359333

To simply provide an antistatic molded resin article having a low resistivity without using a substantive amount of an electrically conductive additive. An antistatic molded article comprising a polyesteramide resin, characterized in that said molded article is prepared by copolymerizing (a) a cyclic amide and at least one ester selected from the group consisting of (b1) a cyclic ester and (b2) at least one linear ester selected from the group consisting of polyesterpolyol, polyesteretherpolyol, and polycarbonatepolyol, said molded article having a surface resistivity of less than 1013 .OMEGA..

L'invention vise à permettre la production d'un article de résine moulé antistatique de faible résistivité sans avoir à utiliser un additif électriquement conducteur en quantité importante. Ledit article moulé antistatique comprend, à cet effet, une résine de polyesteramide. L'invention est caractérisée en ce que ledit article moulé se prépare par copolymérisation (a) d'une amide cyclique et d'au moins un ester sélectionné dans le groupe constitué (b¿1?) d'un ester cyclique et (b¿2?) d'au moins un ester linéaire sélectionné dans le groupe comprenant polyesterpolyol, polyesteretherpolyol, et polycarbonatepolyol, ledit article moulé ayant une résistivité superficielle inférieure à 10?13¿ .OMEGA..

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