Process for coloring building materials

Details Process for coloring building materials Process for coloring building materials

1993-07-06

1994-06-21

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106425, 106437, 106453, 106456, C09C 122

Patent

active

053225635

ABSTRACT:
A method for coloring building materials is disclosed, wherein a pigment suspension is added to the building materials. The pigment suspension based on pigment granules contains at least one pigment such as iron oxide, and a soluble phosphate salt. The soluble phosphate salt has a number ratio of monofunctional metal ions to phosphorus of 2:1 to 1:1, and is exemplified by sodium pyrophosphate, sodium polyphosphate, and sodium hexametaphosphate.

REFERENCES:
patent: 4277288 (1981-07-01), Lawrence et al.
patent: 4946505 (1990-08-01), Jungk
Din Iso 737/11, (Aug. 1, 1981).

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