Constant viscosity inks

Details Constant viscosity inks Constant viscosity inks

1975-05-29

1977-01-25

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Marking

252 621L, C09D 1108

Patent

active

040049310

ABSTRACT:
Ink compositions and particularly liquid developer compositions wherein the viscosity is insensitive to temperature changes, are disclosed. The developers, the viscosities of which are substantially insensitive to temperature changes, comprise by weight about 3-25 percent resin binder, about 1-3 percent of alkylated polyvinylpyrrolidone dispersing agent, the ratio of the dispersing agent to the pigment being about 5-15 percent and about 25-90 percent organic liquid carrier and/or solvent, the dispersing agent being soluble in the carrier and/or solvent.

REFERENCES:
patent: 3542682 (1970-11-01), Mutaffis
patent: 3907694 (1975-09-01), Lu
patent: 3909433 (1975-09-01), Gilliams et al.

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