Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized
Patent
1997-03-04
1998-02-03
Cameron, Erma
Coating processes
Direct application of electrical, magnetic, wave, or...
Electrostatic charge, field, or force utilized
427195, 427201, 427393, 427397, B05D 104
Patent
active
057142068
ABSTRACT:
Wood is electrostatically coated with a thermosetting powder coating system in which a mixture of a self-curing epoxy resin and a catalyst therefore is extruded and a low temperature curing agent are both pulverized and the powders are blended with conventional additives to make a coating powder which is deposited on a wooden substrate and heated to cure. The mixture of resin and catalyst does not cure within the extruder but it is made to cure at low temperatures by the separate addition of the curing agent. A small amount of the low temperature curing agent, insufficient to cause substantial curing during extrusion may be used in place of the catalyst.
REFERENCES:
patent: 5212263 (1993-05-01), Schreffler
Correll Glenn D.
Daly Andrew T.
Haley Richard P.
Horinka Paul R.
Kozlowski Joseph J.
Cameron Erma
Didrick Robert M.
Morton International Inc.
White Gerald K.
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