Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1998-02-18
2000-02-15
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430108, G03G 9097
Patent
active
060251050
ABSTRACT:
A substantially chromium-free toner composition which comprises, as a negative charge control agent, one or more complexes of Formula 1: ##STR1## including other acceptable forms of such complex, in which: X+ is H+, Na+ or mixtures thereof; M is Fe or Co; R.sup.1 is sulphonyl or sulphamoyl, substituted by one or more C.sub.1-4 alkyl; and R.sup.2 is carboxy or phenylcarbamoyl, optionally substituted by one or more C.sub.1-4 alkyl; but when R.sub.1 is methylsulphonyl, R.sup.2 is not carboxy.
REFERENCES:
patent: 4206064 (1980-06-01), Kiuchi et al.
patent: 4407926 (1983-10-01), Stahlhofen
patent: 4624907 (1986-11-01), Niimua et al.
patent: 5143809 (1992-09-01), Kaneko et al.
patent: 5770341 (1998-06-01), Mukudai et al.
patent: 5843611 (1998-12-01), Sukata et al.
patent: 5856055 (1999-01-01), Ugai et al.
CAS entry for the well known prior art CCA--Spilon Black TRH.
Extract relating to CCAs from the text book "Chemistry and Technology of Printing and Imaging Systems" edited by P. Gregory, published by Balckie Academic and Professional, 1996, ISBN 0-7514-238-9.
Devonald David
Rice Steven M.
Sato Shuitsu
Goodrow John
Toshiba America Business Solutions, Inc.
LandOfFree
Toner compositions and use does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toner compositions and use, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner compositions and use will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1904502