Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1999-05-25
2000-09-26
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
G03G 9113
Patent
active
061240699
ABSTRACT:
A carrier composition is provided for electrophotographic development. Core particles are coated with a graft copolymer of a fluoropolymer and methyl methacrylate. The core particles preferably are a material selected from steel, nickel, iron, ferrites, passivated iron, or mixtures or alloys thereof. The fluoropolymer preferably is a polymer selected from chlorotrifluoroethylene, polyvinylidene fluoride, polytrifluoroethylene, polytetrafluoroethylene, copolymers of vinylidene fluoride and hexafluoropropylene, and copolymers of vinylidene fluoride and tetrafluoroethylene. In a preferred carrier composition, the coating consists of two layers. The exterior layer is a graft copolymer made of a fluoropolymer and methyl methacrylate.
REFERENCES:
patent: 5512403 (1996-04-01), Tyagi et al.
patent: 5514513 (1996-05-01), Cunningham et al.
patent: 5518855 (1996-05-01), Creatura et al.
patent: 5567562 (1996-10-01), Creatura et al.
patent: 5665507 (1997-09-01), Takagi et al.
Bartus Jan
Vail Wilfred Emerson
Goodrow John
Nashua Corporation
Neuner George W.
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