Color powder for coating

Details Color powder for coating Color powder for coating

2008-12-31

2011-11-15

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Processes

Combined

C241S101800, C366S160500

Reexamination Certificate

active

08056842

ABSTRACT:
A method for producing a color powder concentrate, the method comprising: performing a first dry-mixing of a base powder with an excess amount of a pigment powder to produce an initial mixture; filtering out pigment agglomerates larger than a pre-determined size, to produce a sieved mixture; and performing a second dry-mixing of the sieved mixture with a compensatory amount of a base powder to produce the color powder concentrate, wherein the compensatory amount of the base powder may be determined based on the excess amount of the pigment powder and on an amount of the pigment agglomerates filtered out.

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