Cleaning and liquid contact with solids – Processes – Paints – varnishes – lacquers – or enamels – removal
Patent
1995-08-23
1997-02-25
Warden, Jill
Cleaning and liquid contact with solids
Processes
Paints, varnishes, lacquers, or enamels, removal
510202, 510206, B08B 700
Patent
active
056055790
ABSTRACT:
Stripping action of an alkaline paint stripper is improved when ammonia is partially or completely replaced with ammonium bicarbonate or chemical equivalent thereof which decomposes into ammonia and carbon dioxide. A benzyl alcohol solvent system containing at least ammonium bicarbonate is preferably a water-in-oil emulsion emulsified with oleic hydroxyethyl imidazoline and thickened with hydroxypropyl cellulose or hydroxypropyl methylcellulose. A mixture of ammonium carbamate and ammonium bicarbonate identified as ammonium carbonate is the preferred activator for this alkaline paint stripper. Improved stripping can also be provided by reacting ammonium bicarbonate and ammonia in situ within the water-in-oil emulsion.
REFERENCES:
patent: 1034819 (1912-08-01), Nicles
patent: 1467654 (1921-09-01), Scoles
patent: 1495547 (1924-05-01), Clark
patent: 3356614 (1967-12-01), Gilbert
patent: 3463735 (1969-08-01), Stonebraker et al.
patent: 4071645 (1978-01-01), Kahn
patent: 4120810 (1978-10-01), Palmer
patent: 4135947 (1979-01-01), Rink
patent: 4414128 (1983-11-01), Goffinet
patent: 4445939 (1984-05-01), Hodson
patent: 4732695 (1988-03-01), Francisco
patent: 4927556 (1990-05-01), Pokorny
patent: 5015410 (1991-05-01), Sullivan
patent: 5188666 (1993-02-01), Boccardo
patent: 5259848 (1993-11-01), Terry et al.
patent: 5387363 (1995-02-01), Distaso
The Merck Index--Tenth Edition--p. 76.
Catalog of Aldrich Chemical Company, Inc 1992, p. 87.
Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold Company; 1993 pp. 64 & 66.
Elf Atochem North America Inc.
Markoff Alexander
Warden Jill
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