Coating processes – With post-treatment of coating or coating material – Heating or drying
Patent
1977-10-14
1981-01-27
Smith, Ronald H.
Coating processes
With post-treatment of coating or coating material
Heating or drying
427421, B05D 302, B05D 102
Patent
active
042475813
ABSTRACT:
Surface coating methods and apparatus are disclosed which eliminate many of the disadvantages associated with known coating processes from pollution, equipment, materials, energy, labor and cost standpoints. According to techniques described, liquid compositions containing film-forming solids are formulated, then conveyed in the foam state towards a surface, and upon foam disintegration, form a film of solids on the surface. The techniques disclosed eliminate the need for solvents in paints or reduce volatile content to very minimal amounts. This method also enables polymeric compositions having high molecular weight to be employed as coating materials. Furthermore, the method has utility in nearly all coating processes where the film-forming solids are conveyed from a bulk state to a surface for coating.
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patent: 3245828 (1966-04-01), Iwata
patent: 3607341 (1971-09-01), Goins et al.
patent: 3640916 (1972-02-01), Dill
patent: 3764069 (1973-10-01), Runstadler et al.
patent: 3884844 (1975-05-01), Plunguira et al.
patent: 3979535 (1976-09-01), Govindra
patent: 4026828 (1977-05-01), Smiley
patent: 4118526 (1978-10-01), Gregorirr et al.
Cobbs, Jr. Walter H.
Rehman William R.
Shong Robert G.
Childs S. L.
Nordson Corporation
Smith Ronald H.
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