Cleaning and liquid contact with solids – Processes – Including forming a solidified or hardened coating for cleaning
Patent
1988-08-31
1990-02-13
Lacey, David L.
Cleaning and liquid contact with solids
Processes
Including forming a solidified or hardened coating for cleaning
134 26, 134 38, 252156, 25217423, 252DIG3, 252DIG8, C11D 1000, C11D 314, B08B 700
Patent
active
049003640
ABSTRACT:
A method for stripping cured paint from a surface using a stripper composition containing a caustic alkali and a film forming liquid coating which is sprayed on the stripper composition to form a film on the surface of the stripper composition, the liquid coating containing a volatile thinner and a parafin formulation or a liquid vinyl-solvent, the coating being separable from the stripper composition to allow for removal of the composition and softened paint by scrapping or washing with a high pressure water wash. A further method is to mix a solvent free liquid vinyl coating with a stripper composition and an additive to form a homogeneous mixture that can be sprayed onto the cured paint and removed by peeling to remove the softened paint.
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patent: 4477288 (1984-10-01), Kazmierczak et al.
patent: 4579627 (1986-04-01), Brailsford
patent: 4643840 (1987-02-01), Brocklehurst et al.
patent: 4734138 (1988-03-01), Ely et al.
patent: 4801397 (1989-01-01), Flanagan et al.
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Dang Thi
Lacey David L.
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