Process for preparing powder coating composition

Details Process for preparing powder coating composition Process for preparing powder coating composition

1992-04-13

1993-04-27

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525934, C08L 6300

Patent

active

052063135

ABSTRACT:
A powder coating composition in which epoxy resin particles and curing agent particles are uniformly distributed is prepared by heating a specific powdery blend of (a) at least one crystalline epoxy resin, (b) at least one crystalline curing agent and (c) at least one non-crystalline epoxy resin and/or at least one non-crystalline curing agent at a specific temperature so that the crystalline particles are bonded with each other with the non-crystalline substance serving as a binder.

REFERENCES:
patent: 4255553 (1981-05-01), Mizumura et al.
patent: 4421897 (1983-12-01), Gutekunst et al.
patent: 4920164 (1990-04-01), Sasaki et al.

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