Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Reexamination Certificate
2006-05-24
2009-02-17
Le, Hoa V (Department: 1795)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
C430S109400, C430S110100
Reexamination Certificate
active
07491481
ABSTRACT:
A method of manufacturing a toner comprising the steps of: (i) forming oil droplets in an aqueous medium comprising a surfactant having a long chain hydrocarbon group and an acid group, the oil droplets comprising: (i-a) a polycarboxylic acid having two or more carboxyl groups, (1-b) a polyalcohol having two or more hydroxyl groups, (i-c) a styrene compound, (i-d) a (meth)acrylate ester; (ii) polycondensing the polycarboxylic acid and the polyalcohol by heating to form a polyester resin in the oil droplets; (iii) radically polymerizing the styrene compound and the (meth)acrylate ester by supplying radicals to form a styrene-acryl copolymer resin in the droplets, as a result of steps (ii) and (iii), composite resin particles containing the polyester resin and the styrene-acryl copolymer resin are formed; and (iv) coagulating the composite resin particles in an aqueous medium.
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Polymer 44 (2003) 2833-2841.
Hayashi Kenji
Koyama Mikio
Konica Minolta Business Technologies Inc.
Le Hoa V
Lucas & Mercanti LLP
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