Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2003-08-01
2009-10-13
Goodrow, John L (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S108700
Reexamination Certificate
active
07601472
ABSTRACT:
Toner compositions have a post-blended particulate additive which comprises aluminum oxide and aluminum hydroxide with, optionally, a third component such as silica or a wax, which is a tribo-charging additive which, upon tribo-charging of the toner particles, shifts the charge distribution in either the positive or negative direction. As well as providing toner compositions having adequate fluidity, the use of pre-extrusion charge-control additives can be avoided. There are also advantages, for example, in terms of charge distribution characteristics, stability of charge distribution, and avoidance of matting effects. Developer compositions are formed by admixture with suitable carrier particles.
REFERENCES:
patent: 3607337 (1971-09-01), Eisenmenger et al.
patent: 3816154 (1974-06-01), Baldyga et al.
patent: 5501934 (1996-03-01), Sukata et al.
patent: 5547796 (1996-08-01), Kohtaki et al.
patent: 5607806 (1997-03-01), Kanbayashi et al.
patent: 5874019 (1999-02-01), Uchida et al.
patent: 5885743 (1999-03-01), Takayanagi et al.
patent: 6531524 (2003-03-01), Ring et al.
patent: 2001/0005735 (2001-06-01), Ring et al.
patent: 2002/0169234 (2002-11-01), Ring et al.
patent: 2002/0192584 (2002-12-01), Hayashi et al.
patent: 287 392 (1991-02-01), None
patent: 0 601 235 (1994-06-01), None
patent: 1 373 220 (1974-11-01), None
patent: 1 528 110 (1978-10-01), None
patent: 2074745 (1981-11-01), None
patent: 58 091463 (1983-05-01), None
patent: 2002-029730 (2002-04-01), None
patent: WO 97/08250 (1997-03-01), None
International Preliminary Examination Report No. PCT/GB03/03381, dated Mar. 18, 2004.
International Search Report No. PCT/GB 03/03381, dated Dec. 2, 2003.
Derwent Abstract 008711875, abstracting DD 287 392.
Patent Abstracts of Japan abstracting JP 2002-029730.
Computer Translation of JP 2002-029730.
Akzo Nobel Coatings International B.V.
Goodrow John L
Kenyon & Kenyon LLP
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