Acid based variable viscosity compositions such as corrosion and

Details Acid based variable viscosity compositions such as corrosion and Acid based variable viscosity compositions such as corrosion and

1983-07-22

1985-05-21

Willis, Prince E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

134 40, 134 41, 252 86, 252 87, 252143, 252146, 252149, 252150, 25217423, 252391, 252392, 252394, 252396, 422 7, C11D 708, C11D 734

Patent

active

045185190

ABSTRACT:
An improved, highly penetrating rust remover and/or degreaser composition for metallic surfaces is provided which is chemically inhibited to substantially prevent oxidation-reduction reactions with a metal substrate and limit the action of the composition to a chemical attack on corrosion. The composition is preferably a single phase dispersion and includes respective quantities of an acid such as hydrochloric acid and phosphoric acid, an organic compound containing a nitrogen, oxygen or sulfur atom such as N-(2-hydroxyethyl) oxazolidine, an alcohol or other organic solvent for grease removal, water and one or more emulsifiers (e.g., a derivative of hydrogenated tallow) for stabilizing and lowering the surface tension of the resultant composition. The compositions may be formulated as liquids or with a viscosity control agent such as a polymer of vinyl pyrrolidone to give a paste-like consistency permitting easy use thereof on vertical surfaces, In other forms, the compositions hereof may include a mild abrasive such as activated silica gel.

REFERENCES:
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patent: 2524825 (1950-10-01), Pabst et al.
patent: 2737491 (1956-03-01), Hughes et al.
patent: 2814593 (1957-11-01), Beiswanger et al.
patent: 3113113 (1963-12-01), Marsh et al.
patent: 3249548 (1966-05-01), Herman et al.
patent: 3709823 (1973-01-01), Sugahara et al.
patent: 3962110 (1976-06-01), Tate
patent: 4079011 (1978-03-01), Tate
patent: 4212759 (1980-07-01), Young et al.
patent: 4216032 (1980-08-01), Hyner et al.
patent: 4244826 (1981-01-01), Swanson
patent: 4247344 (1981-01-01), Tsuda et al.

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