Process for producing cured epoxy resin spherical particles

Details Process for producing cured epoxy resin spherical particles Process for producing cured epoxy resin spherical particles

1984-09-17

1986-05-13

Jacobs, Lewis T.

Coating processes

Immersion or partial immersion

Chemical compound reducing agent utilized

523414, 523420, 528 88, 528 93, 528111, 528118, 528123, 528124, 8506, B05D 118, C08L 6300, D06P 500

Patent

active

045886172

ABSTRACT:
Spherical particles of cured epoxy resin having an average size not larger than 50 .mu.m can be produced by adding a water-soluble amine curing agent to an emulsion of uncured epoxy resin.
It is possible to prepare spherical particles incorporating a UV absorber or inorganic particles, to dye these particles with an acid dye, and to subject them to electroless plating.
In addition, after-treatment of the cured particles enhances their heat resistance and destroys the epoxide groups left unreacted inside each particle.
These particles may be used as an ingredient of cosmetic and coating compositions, as a toner of electrostatic copiers, and for other applications.

REFERENCES:
patent: 4446257 (1984-05-01), Kooijmans et al.

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