Rust preventive coating composition

Details Rust preventive coating composition Rust preventive coating composition

1988-01-29

1990-08-07

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1435, 106 1436, 524 62, C23F 1100

Patent

active

049465031

ABSTRACT:
A rust preventive coating composition to be applied to the underfloor of an automotive vehicle for the purpose of preventing the underfloor from being rusted. The rust preventive coating composition comprises asphalt, metallic salt of petroleum sulfonic acid, metallic salt of petrolatum oxide, wax-like material, microwax, metallic salt of lanolin fatty acid, metallic salt of synthetic sulfonic acid, plasticizer, solvent, extender pigment, additive, reforming agent and inorganic running preventive agent. The extender pigment includes barium sulfate ranging not less than 20 wt % of the total amount of the extender pigment, and calcium carbonate ranging not less than 5 wt % of the total amount of the extender pigment. The reforming agent ranges from 1 to 10 wt % of the total amount of the rust preventive coating coposition. The inorganic running preventive agnet ranges from 0.5 to 10 wt % of the total amount of the rust preventive coating composition. Additionally, the rust preventive coating composition has a nonvolative content of 70 wt %. This rust preventive coating composition makes it possible to form both relatively thin and thick rust preventive coating films, without using two kinds of conventional coating compositions, exhibiting high performance of rust preventive coating while decreasing the used amount of organic solvent.

REFERENCES:
patent: 3492231 (1970-01-01), McMillen
patent: 4305855 (1981-12-01), Bretz
patent: 4729791 (1988-03-01), Laura et al.

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