Processes for encapsulated toners

Details Processes for encapsulated toners Processes for encapsulated toners

1990-10-01

1992-05-19

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

430138, 42840224, G03G 9093

Patent

active

051148242

ABSTRACT:
A process for the preparation of encapsulated toner which comprises (1) mixing a blend of a core monomer or monomers, free radical chemical initiator, pigment, and an oil soluble shell monomer to form an organic phase; (2) dispersing the resulting organic phase in the absence of surfactant or stabilizer in an aqueous solution comprised of a water-soluble shell monomer whereby interfacial shell polymerization is initiated; (3) stirring the resulting suspension to allow completion of interfacial shell polymerization; (4) initiating free radical core polymerization by increasing the temperature of the suspension from ambient to about 75.degree. to about 90.degree. C.; (5) completing core polymerization by maintaining the aforementioned temperature in step (4) for an effective period of time; (6) cooling; (7) filtering; and (8) drying.

REFERENCES:
patent: 4125700 (1978-11-01), Graham
patent: 4299903 (1981-11-01), AuClair
patent: 4307169 (1981-12-01), Matkan
patent: 4316830 (1982-02-01), Mallow
patent: 4407922 (1983-10-01), Grushkin et al.
patent: 4465755 (1984-08-01), Kiritani et al.
patent: 4610945 (1986-09-01), Matsuoka et al.
patent: 4642281 (1987-02-01), Kakimi et al.
patent: 4727011 (1988-02-01), Mahabadi et al.
patent: 4758506 (1988-07-01), Lok et al.
patent: 4937167 (1990-06-01), Moffat et al.
patent: 4943505 (1990-07-01), Aoki

Affiliated with

Also associated with

Rating

Processes for encapsulated toners does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Processes for encapsulated toners, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for encapsulated toners will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2416962