Aqueous coating compositions for asbestos-cement and the like

Details Aqueous coating compositions for asbestos-cement and the like Aqueous coating compositions for asbestos-cement and the like

1974-02-28

1976-03-30

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

427302, 427322, 260 296MN, 260 296MP, 260 296N, 260 296E, 260 297M, 260 297N, 260 297NQ, 260 297P, 428271, 428391, 428447, C08L 908, C08L 3308

Patent

active

039473970

ABSTRACT:
Pigmented, in situ reduced zinc dichromate coatings on asbestos-cement and similar surfaces are made more reproducible in color by including as at least a portion of the reducing agent a hexitol or pentitol such as sorbitol, or a low alkanolamine, or mixtures of these. An acid like phosphoric acid that forms a water-insoluble calcium salt but does not precipitate the zinc can also be added to the coating formulation.

REFERENCES:
patent: 3094435 (1963-01-01), Schuster et al.
patent: 3421934 (1965-01-01), Schuster et al.
patent: 3472681 (1969-01-01), Schuster et al.
patent: 3516847 (1970-01-01), Schuster et al.

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