Biasable member and method for making

Details Biasable member and method for making Biasable member and method for making

1974-04-26

1976-05-25

Husack, Ralph

Stock material or miscellaneous articles

Composite

Of polyamidoester

29132, 346 74ES, 355 3R, 427 24, 427 58, 428 36, G03G 1300, G03G 1500

Patent

active

039595749

ABSTRACT:
Rolls, belts and other biasable members having controlled resistivity are described. The resistivity of the elastomeric resilient polyurethane coating on biasable members is controlled by ionic 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.

REFERENCES:
patent: 3479310 (1969-11-01), Dieterich et al.
patent: 3697171 (1972-10-01), Sullivan
patent: 3702482 (1972-11-01), Dolcimascolo et al.
patent: 3830656 (1974-08-01), Takenaka et al.
patent: 3832055 (1974-08-01), Hamaker
patent: 3863603 (1975-02-01), Buckley et al.

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