Method of manufacturing toner, toner, and image forming method

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

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C430S109400, C430S110100

Reexamination Certificate

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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.

REFERENCES:
patent: 5314777 (1994-05-01), Watanabe et al.
patent: 6296980 (2001-10-01), Oshiba et al.
patent: 2002/0187416 (2002-12-01), Jiang et al.
patent: 6003856 (1994-01-01), None
patent: 2000214629 (2000-08-01), None
patent: 2001125313 (2001-05-01), None
Polymer 44 (2003) 2833-2841.

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