Milled talc material and milling method

Details Milled talc material and milling method Milled talc material and milling method

1974-02-11

1976-01-13

Garvin, Patrick P.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106309, 241 5, C09C 102

Patent

active

039321940

ABSTRACT:
Milled talc materials containing about twenty to about thirty-five weight percent tremolite having particle size distributions such that no more than five percent of the particles are larger than 10 microns, no more than 12 percent of the particles are larger than five microns and no more than 15 percent of the particles are smaller than 0.3 microns in equivalent spherical diameter have improved opacifying properties for use in paper, rubber, plastics and paint manufacture. The materials can be obtained by jet or fluid energy milling and by controlling the milling variables to produce particle size distributions within the critical range.

REFERENCES:
patent: 3366501 (1968-01-01), Lamar
patent: 3643875 (1972-02-01), Dille

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