Stable aqueous alkali metal silicate/iron oxide pigment suspensi

Details Stable aqueous alkali metal silicate/iron oxide pigment suspensi Stable aqueous alkali metal silicate/iron oxide pigment suspensi

1977-05-18

1978-07-25

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C09D 102

Patent

active

041026993

ABSTRACT:
This invention relates to aqueous alkali metal silicate/iron oxide pigment suspensions which are resistant to sedimentation, to a process for the preparation thereof and to the use thereof. The pigment suspensions comprise:
A. from about 10 to about 40%, by weight, of iron oxide pigment,
B. from about 20 to about 40%, by weight, of alkali metal silicate and
C. from about 30 to about 70%, by weight, of water,
Wherein at least 95% by weight of the iron oxide pigment has a particle size equal to or less than 1 .mu..

REFERENCES:
patent: 2845394 (1958-07-01), Thompson
patent: 3100154 (1963-08-01), Oshima et al.

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