Method for manufacture of colored particles

Details Method for manufacture of colored particles Method for manufacture of colored particles

1994-12-09

1997-04-15

Cain, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523201, 523205, 523206, 523207, 523208, 523209, 523210, 428904, 524449, 524501, C08K 900

Patent

active

056210230

ABSTRACT:
To produce colored particles with a 10-200 .mu.m average grain size simply, efficiently, and in high yields, in order to obtain suede-type paint constituents with excellent decorative features capable of producing finely detailed, marble-like, multi-color patterns. Water-insoluble particles and a polyvalent carboxylic acid resin with an acid value (solid-based) of about 20-120, either water-soluble or water-diffusing, are mixed in water; and after primary coated particles are formed on the surfaces of the water-insoluble particles on which the polyvalent carboxylic acid resin is adsorbed, a dispersion-stabilized emulsion resin containing a colored pigment is mixed in the dispersion liquid; and a metal salt is added to this mixture so that colored particles with an average particle size of about 10-200 .mu.m with a surface colored coating are obtained. The water-insoluble particles can be either synthetic resin particles or inorganic particles.

REFERENCES:
patent: 5106889 (1992-04-01), Hirata et al.

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