COMPOSITIONS AND METHOD FOR MAKING BIASABLE MEMBERS

摘要

COMPOSITIONS AND METHOD FOR MAKING BIASABLE MEMBERS Rolls, belts and other biasable members having controlled resistivity are described. The resistivity of the elastomeric resilient polyurethane coating on biasable members is byionic additives incorporated in the polyurethane. Biasable members having at least one layer or coating of a hydrophilic elastomeric polyurethane containing resistivity altering compounds or agents have substantially reduced resistivity changes with changes in relative humidity. The utility of such biasable members is in the transfer of xerographic images from a photoconductor to a final support sheet where the member, for example, a bias transfer roll, electrically cooperates with a photoconductor to establish a directional force field therebetween.