Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Magnetic imaging
Patent
1979-11-05
1981-03-17
Welsh, John D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Magnetic imaging
430120, 430122, 430126, 430124, 252 6254, 252 6256, 260 4222, 260DIG38, 430109, G03G 1100, G03G 1900
Patent
active
042568188
ABSTRACT:
This invention is directed to new electrophotographic, and magnetic toners, which are useful for example in high speed fusing systems, these toners being comprised of a polyamide resin, a pigment or colorant, which pigment or colorant may be magnetic and as an optional ingredient, a carrier material. The polyamide resin is of the formula ##STR1## wherein R, R.sub.1, R.sub.2, and R.sub.3 are radicals independently selected from aliphatic, substituted aliphatic, aromatic, substituted aromatic, cycloaliphatic, and heterocyclic, x is a number of from 1 to about 100, and y is a number of from 1 to about 100. In one preferred embodiment the toner composition is comprised of the polyamide resin and a high loading, 50-75 percent of a magnetic material, allowing for high speed fusing in magnetic imaging systems.
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Blossey Daniel F.
Dickerson Charles G.
Erhardt Peter F.
Kuder James E.
Swigert J. Kirk
Brownrout H. M.
Kondo P. H.
Palazzo E. O.
Welsh John D.
Xerox Corporation
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