Methods for preparing stable silica sols and inorganic coating c

Details Methods for preparing stable silica sols and inorganic coating c Methods for preparing stable silica sols and inorganic coating c

1976-03-15

1977-11-08

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 294UA, 428502, 428524, 428528, C08L 6128

Patent

active

040575250

ABSTRACT:
A novel stable silica sol which does not gel even at low temperatures is prepared by adding a di -or polyhydric alcohol having three or more carbon atoms and a water-soluble melamine resin to a silica sol. A novel water-based coating composition which requires only an applying step, not a baking step nor a drying step, in the use is prepared by adding an aggregate or filler and usual additives for coating material to the aforesaid stable silica sol as binder. By adding further a small amount of a synthetic resin emulsion to said binder, an inorganic coating composition containing a smaller amount of organic materials than that in prior products can be obtained. The coating therefrom is excellent in strength and its fire resistance is not lowered.

REFERENCES:
patent: 2953534 (1960-09-01), Schneider
patent: 3069375 (1962-12-01), Bullitt, Jr. et al.
patent: 3355314 (1967-11-01), Gagnon et al.

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