Stripping fingers for copying machine

Details Stripping fingers for copying machine Stripping fingers for copying machine

B - Operations, Transporting

65

H

B65H 29/56 (2006.01) G03G 15/00 (2006.01) G03G 15/20 (2006.01)

Patent

CA 2069568

Stripping fingers for use in a copying machine, molded of a liquid crystal polyester resin composition containing a liquid crystal polyester having a flow temperature of 340°C or higher and aluminum borate whiskers. The stripping fingers have excellent heat deflection resistance, heat aging resistance, thermal shock resistance, heat load resistance, low attack on the counter roller, good shape retainability of the finger edges, and good non-stick property against toner. Coating with PFA at 330°C or higher on the stripping finger increases non-tackiness.

La présente invention concerne des doigts séparateurs pour polycopieuse faits d'une composition de résine de polyester à cristaux liquides. Cette composition comprend du polyester à cristaux liquides, dont la température d'écoulement est d'au moins 340 degrés C, et des trichites de borate d'aluminium. Les doigts possèdent d'excellentes propriétés contre la déflexion et le vieillissement à la chaleur, le choc et la charge thermique, la détérioration de leur forme aux extrémités, l'adhésion relativement à la poudre imprimante, et affichent une faible atteinte au rouleau de comptoir. L'application du PFA à 330 degrés ou plus sur les doigts augmente la propriété d'anti- adhésion .

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