Rare earth metal sulfide pigments comprising fluorine values

Details Rare earth metal sulfide pigments comprising fluorine values Rare earth metal sulfide pigments comprising fluorine values

1994-06-09

1996-03-26

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106400, 106401, 106451, 423263, 423265, 423266, C01F 100, C01F 1700, C04B 3550

Patent

active

055017339

ABSTRACT:
Fluoridated particulates, especially external face surface-fluoridated particulates of the rare earth metal sesquisulfide pigments/colorants, advantageously encapsulated within a coating layer of at least one transparent oxide or hydrate thereof, e.g., silica, have improved chromatic properties and are well suited for the coloration/pigmentation of a wide variety of materials and substrates, for example paints, plastics, resins, varnishes, rubbers, ceramics, glazes, papers, inks, leathers, cosmetics, dyes, coatings, etc.

REFERENCES:
patent: 4545967 (1985-10-01), Reynolds et al
Chemical Abstract 84:107942 of SU 493436, Markovskii et al., Nov. 30, 1975.
Derwent Abstract 76-69998x/37 of Su 493436-A Feb. 26. 1976.

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