Cleaning and liquid contact with solids – Processes – Paints – varnishes – lacquers – or enamels – removal
Patent
1998-03-11
1999-12-14
Gupta, Yogendra
Cleaning and liquid contact with solids
Processes
Paints, varnishes, lacquers, or enamels, removal
510201, 510212, 510409, B08B 304
Patent
active
060011920
ABSTRACT:
Inexpensive paint stripper compositions containing neither chlorinated nor alkaline solvents and well adapted for removing paints such as glycerophtalic, alkyd-urethane or arylic urethane paints on a variety of substrates, e.g. wood and metal substrates comprise (a) 1 to 99% by volume of an aprotic polar solvent chosen from the group comprising: dimethyl sulfoxide, dimethyl formamide, N-methylpyrrolidone, N-methylmorpholine, .gamma.-butyrolactone, acetonitrile and mixtures thereof; and (b) 99 to 1% by volume of an ether selected from the family of ethers having a flash point higher than 0.degree. C., a molar volume less than 160 and a molecule that includes one or several methoxy groups.
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Fouquay Stephane
Lallier Jean-Pierre
Elf Atochem S.A.
Gupta Yogendra
Webb Gregory E.
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