Melt-blending method of forming pigmented powder coatings

Details Melt-blending method of forming pigmented powder coatings Melt-blending method of forming pigmented powder coatings

1980-06-30

1982-03-16

Jacobs, Lewis T.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

264101, 264211, 523340, 523512, C08J 320

Patent

active

043200486

ABSTRACT:
An improved method of forming a pigmented powder coating composition of the kind wherein the constituents are melt-extruded and the solidified extrudate then ground into a powder is provided. In the improved method, the non-pigment constituents are introduced into a melt-extruder and a pigment dispersion is simultaneously introduced into the extruder at a point downstream of the introduction of the non-pigment constituents. Powder coatings produced by this improved method display enhanced appearance and gloss.

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patent: 4247501 (1981-01-01), Easley et al.
patent: 4250132 (1981-02-01), Beach
Mueller; Producing Colored Powders; Paint and Varnish Production, Apr. 1974.

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