Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1992-06-30
1994-10-11
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
252 6254, 430108, 430137, G03G 9113
Patent
active
053546385
ABSTRACT:
A magnetic carrier in the form of magnetic particles having a resinous coating on the surface thereof is used in combination with a toner for electrophotographic development. The resinous coating is predominantly comprised of a copolymer of an alkyl (meth)acrylate and styrene in which the alkyl group has 1 to 5 carbon atoms and the content of styrene ranges from 5 to 45% by weight of the copolymer. The copolymer is prepared by emulsion polymerization of alkyl (meth)acrylate and styrene monomers in the presence of a polymerizable emulsifier. The coating becomes tough by heat treating at a temperature of 100.degree. to 300.degree. C.
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Patent Abstracts of Japan vol. 11, No. 189 (P-587) (2636) 18 Jun. 1987, & JP-A-62 15561 (TDK Corporation) 23 Jan. 1987, *the whole document*-no translation.
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Xerox Disclosure Journal (J. H. Moriconi et al.) vol. 1 No. 4 p. 55 Apr. 1976.
Rodee Christopher D.
TDK Corporation
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