Imaging process employing toner particles containing arylsulphon

Details Imaging process employing toner particles containing arylsulphon Imaging process employing toner particles containing arylsulphon

1975-01-21

1977-01-11

Gwinnell, Harry J.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

96 1SD, 427 14, G03G 902

Patent

active

040027767

ABSTRACT:
An electrostatographic imaging process comprising the steps of forming an electrostatic latent image on a surface and developing said image by contacting it with an electrostatographic developer material comprising particles, the particles including finely-divided toner material have a particle size of up to about 30 microns, a melting point of at least about 110.degree. F, a melt viscosity of less than about 2.5 .times. 10.sup..sup.-4 poise at temperatures up to about 450.degree. F, the toner material comprising a colorant, a thermoplastic resin consisting essentially of a vinyl polymer having a melting point of at least about 110.degree. F, and from about 5 percent to about 55 percent by weight, based on the weight of the vinyl polymer, of an arylsulfonamide formaldehyde adduct having a melting point between about 50.degree. F and about 250.degree. F, whereby at least a portion of the toner material is attracted to and held on the surface in conformance to the electrostatic latent image.

REFERENCES:
patent: 2244183 (1941-06-01), Austin
patent: 3377286 (1968-04-01), Sticklin
patent: 3740334 (1973-06-01), Jacknow et al.
patent: 3775326 (1973-11-01), Westdale
Santolite MHP, Technical Bulletin O-D-112, May 25, 1950, Monsanto Chemical Company.
Santolite MHP and Santolite MS-80% (Monsanto Industrial Resins) Monsanto Technical Bulletin No. 0-94, Apr., 1953, pp. 2-11.

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