Graft copolymers and colorless, transparent electrophotographic

Details Graft copolymers and colorless, transparent electrophotographic Graft copolymers and colorless, transparent electrophotographic

1995-12-27

1998-02-03

Dote, Janis L.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430115, 430904, 525279, 525286, G03G 913, G03G 9135

Patent

active

057142963

ABSTRACT:
A graft copolymer of recurring units of (C.sub.6 -C.sub.18)alkyl (meth)acrylate (A), vinylpyridine (B), glycidyl (meth) acrylate (C), and glycidyl (meth) acrylate units esterified with (meth)acrylic acid (D) onto which polymeric side chains of units of vinylpyridine, (C.sub.1 -C.sub.3)alkyl acrylate, and optionally (C.sub.1 -C.sub.3)alkyl methacrylate are grafted. The polymer is suitable as a binder for colorless, positively chargeable liquid toners, in particular in combination with a copolymer of (C.sub.6 -C.sub.18)alkyl (meth) acrylate and hydroxyalkyl (meth)acrylate as charge control agents. After fixing of the electrophotographically produced toner image, the toners give colorless resist masks or printing screens with a high resistance toward etching agents and solvents.

REFERENCES:
patent: 3880656 (1975-04-01), Nagashima et al.
patent: 4081391 (1978-03-01), Tsubuko et al.
patent: 4148968 (1979-04-01), Nagashima et al.
patent: 4374918 (1983-02-01), Veillette et al.
patent: 4764447 (1988-08-01), Tsubuko et al.

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