G - Physics – 03 – G
Patent
G - Physics
03
G
96/52
G03G 9/10 (2006.01) G03G 9/087 (2006.01)
Patent
CA 1131488
A B S T R A C T A heat fusible toner powder for the development of latent electrostatic images, the components of which include an insulating thermo- plastic resin material, characterized in that the insulating thermoplastic resin material includes (1) a modified epoxy resin of which at least 50% of the total number of initial epoxy groups have been blocked partly by chemical reaction with a monofunctional carboxylic acid, phenol or diarylsulphonamide and, partly by reaction with the hydroxylic groups of the epoxy resin and optionally by reaction with a bi- or polyfunctional epoxy hardener, and, optionally, (2) a phenoxy resin which components (1) and (2) may be mutually cross-linked; the toner powder having a melt viscosity at 140°C of between 2 and 200,000 s.Pa. and a glass transition temperature of between 45 and 85°C.
316144
Oce-Van Der Grinten N.v.
Smart & Biggar
LandOfFree
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