Process for manufacturing thermosetting resin particles

Details Process for manufacturing thermosetting resin particles Process for manufacturing thermosetting resin particles

1995-12-18

1997-03-11

Weber, Thomas R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528503, C08F 618

Patent

active

056102690

ABSTRACT:
Thermosetting resin particles having a narrow particle size distribution useful for powder coating application are produced by the steps of (a) providing a first water-soluble polymer having a cloud point within the range between 30.degree. C. and 90.degree. C. and a second water-soluble polymer not having any cloud point; (b) preparing an aqueous suspension in which an organic solvent-containing, liquid thermosetting resin composition is suspended as primary particles of oil droplets in an aqueous suspension medium containing the first and second water-soluble polymers, (c) heating the suspension to a temperature higher than the cloudy point to allow the oil droplets to agglomerate into secondary particles of larger particle sizes, (d) removing the organic solvent contained in the particles during or after step (c) and optionally (e) recovering the particles.

REFERENCES:
patent: 4043952 (1977-08-01), Ganslaw et al.

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