Dyed stabilized liquid developer and method for making

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430115, 430137, G03G 912

Patent

active

044762100

ABSTRACT:
A stable colored liquid developer and method for making such are described wherein an improved optical density resulting from a colored dye being imbibed into a thermoplastic resin core occurs. In particular, the liquid developer comprises a marking particle dispersed in an aliphatic dispersion medium, the marking particle comprises a thermoplastic resin core having an amphipathic block or graft copolymeric steric stabilizer irreversibly chemically or physically anchored to the thermoplastic resin core with the dye being imbibed in the resin core and being soluble therein and insoluble in the dispersion medium. The stable colored liquid developer is preferably made by first preparing a graft or block copolymer amphipathic steric stabilizer, anchoring said stabilizer to a thermoplastic resin core, and to the aliphatic disperion of said particle adding a solution of a dye dissolved in a polar solvent, preferrably methanol, the dye being soluble in the thermoplastic resin core to enable it to be imbibed therein and substantially insoluble in the dispersion medium.

REFERENCES:
patent: 3542681 (1970-11-01), Mutaffis
patent: 3554946 (1971-01-01), Okuno et al.
patent: 3623986 (1971-11-01), Machida et al.
patent: 3625897 (1971-12-01), Machida
patent: 3890240 (1975-01-01), Hockberg
patent: 3900412 (1975-08-01), Kosel
patent: 3976583 (1976-08-01), Herrmann et al.
patent: 4058470 (1977-11-01), Moschovis et al.
patent: 4081391 (1978-03-01), Tsubuko et al.
patent: 4087393 (1978-05-01), Tsubuko et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Dyed stabilized liquid developer and method for making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dyed stabilized liquid developer and method for making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dyed stabilized liquid developer and method for making will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1600897

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.