Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1989-02-21
1990-06-26
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
430138, 430109, 430110, G03G 908
Patent
active
049371673
ABSTRACT:
Disclosed is a process for controlling the electrical characteristics of colored toner particles. The process comprises preparing a first core material comprising first pigment particles, core monomers, a free radical initiator, and optional polymer components; preparing a second core material which comprises second pigment particles, core monomers, a free radical initiator, and optional polymer components, said second pigment particles being of a different color from that of the first pigment particles; encapsulating separately the first core material and the second core material within polymeric shells by means of interfacial polymerization reactions between at least two shell monomers, of which at least one is soluble in aqueous media and at least one of which is soluble in organic media, wherein the polymeric shell encapsulating the first core material is of substantially the same composition as the polymeric shell encapsulating the second core material; and subsequently polymerizing the first and second core monomers via free radical polymerization, thereby producing two encapsulated heat fusible toner compositions of different colors with similar triboelectric charging characteristics.
REFERENCES:
patent: 4000087 (1976-12-01), Maalouf
patent: 4070186 (1978-01-01), Gibson et al.
patent: 4070296 (1978-01-01), Gibson et al.
patent: 4134760 (1979-01-01), Gibson et al.
patent: 4227011 (1988-02-01), Mahabadi et al.
patent: 4254201 (1981-03-01), Sawai et al.
patent: 4307169 (1981-12-01), Matkan et al.
patent: 4520091 (1985-05-01), Kakimi et al.
patent: 4565764 (1986-01-01), Nakahara et al.
patent: 4613559 (1986-09-01), Ober et al.
patent: 4628019 (1986-12-01), Suematsu et al.
patent: 4702988 (1987-10-01), Fukumoto et al.
patent: 4708924 (1987-11-01), Nagai et al.
patent: 4725522 (1988-02-01), Breton et al.
patent: 4766051 (1988-08-01), Breton et al.
Breton Marcel P.
Gerroir Paul J.
Martin Trevor I.
Moffat Karen A.
Byorick Judith L.
Martin Roland E.
Xerox Corporation
LandOfFree
Process for controlling the electrical characteristics of 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 Process for controlling the electrical characteristics of toners, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for controlling the electrical characteristics of toners will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1125288