Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1995-09-01
1996-06-11
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430119, G03G 9135
Patent
active
055254500
ABSTRACT:
A liquid developer comprised of a nonpolar liquid, thermoplastic resin particles, a charge adjuvant, pigment, and a charge director selected from the group consisting of the triblock polymers BAA', BA'A, and ABA' wherein A, A' and B represent polymer segments or blocks, the polar A block repeat units contain an alkylated or protonated ammonium charged site and the polar A' block repeat units contain an acid group of a pKa equal to or less than about 7.0, and wherein the nonpolar B block repeat units contain aliphatic hydrocarbon solubilizing groups; and wherein the A and A' block number average molecular weights range from about 200 to 120,000, and the B block number average molecular weights range from about 2,000 to 190,000; and the total number average molecular weight of said charge director is from about 2,400 to about 300,000, and the ratio of M.sub.w to M.sub.n for said charge director is 1 to 5.
REFERENCES:
patent: 529653 (1894-03-01), Pearlstine
patent: 5045425 (1991-09-01), Swidler
patent: 5130221 (1992-07-01), El-Sayed et al.
patent: 5407775 (1995-04-01), Larson et al.
patent: 5409796 (1995-04-01), Fuller et al.
patent: 5411834 (1995-05-01), Fuller et al.
patent: 5441841 (1995-08-01), Larson et al.
Chamberlain Scott D.
Larson James R.
Spiewak John W.
Martin Roland
Palazzo E. O.
Xerox Corporation
LandOfFree
Liquid developer compositions with multiple block copolymers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid developer compositions with multiple block copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid developer compositions with multiple block copolymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-350788