Cleaning and liquid contact with solids – Processes – Using solid work treating agents
Patent
1981-08-31
1983-01-25
Caroff, Marc L.
Cleaning and liquid contact with solids
Processes
Using solid work treating agents
134 26, 134 38, 252163, 252164, 252165, 252167, B08B 308, C11D 750
Patent
active
043701744
ABSTRACT:
The invention comprises a cleaning composition and a method for its use in the removal of asphaltic, polyvinyl acetate, and rubber base adhesive coatings from floors. The coating removal composition comprises an organic solvent having a flash point above about 140 degrees F., an inorganic solid adsorbent powder, a water-in-oil surfactant in an amount sufficient to form an oil external phase emulsion and an oil-in-water surfactant in an amount sufficient to reverse the emulsion to a water external phase upon the addition of water thereto. The method of the invention comprises applying the composition to a substrate surface bearing an adhesive coating, permitting the cleaning composition to remain in contact with the adhesive coating on the substrate surface for a sufficient time to soften the adhesive, scrubbing the surface to loosen the adhesive coating and to work the loosened adhesive into the composition, adding water to the emulsion to reverse the emulsion phase and form a water dispersible residue, and removing the resultant water external phase emulsion from the substrate.
REFERENCES:
patent: 2317038 (1943-04-01), Ellinger
patent: 3214867 (1965-11-01), Henning
patent: 3523826 (1970-08-01), Lissant
patent: 3956162 (1976-05-01), Lautenberger
patent: 3983078 (1976-09-01), Collins
patent: 4108681 (1978-08-01), Lawson et al.
Atlas Surface Active Agents (1950), p. 22.
Brij Surfactants (1961), p. 4.
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