Process for rendering nacreous pigments hydrophobic

Details Process for rendering nacreous pigments hydrophobic Process for rendering nacreous pigments hydrophobic

1983-03-25

1984-12-25

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106291, 106300, C09C 308

Patent

active

044901798

ABSTRACT:
A process for rendering nacreous pigments hydrophobic, the pigments being based on mica platelets coated with metal oxides, comprises coating the pigments in aqueous suspension with a chromium (III) or aluminum (III) hydroxide or silicate, and then treating the coated pigments with a solution of a hydrocarbon carboxylic acid having more than four carbon atoms per carboxyl group.

REFERENCES:
patent: 3087828 (1963-04-01), Linton
patent: 3087829 (1963-04-01), Linton
patent: 3333980 (1967-08-01), McCord
patent: 3647492 (1972-03-01), Chapman et al.
patent: 3650790 (1972-03-01), Klenke et al.
patent: 3711308 (1973-01-01), Brand et al.
patent: 4086100 (1978-04-01), Esselborn et al.
patent: 4323554 (1982-04-01), Bernhard
Morrison, R. T. et al., Organic Chemistry-second ed., pub. by Allyn and Bacon, Inc., Boston (1966), pp. 578-579.

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