C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
117/198, 400/512
C09D 5/46 (2006.01) C08G 59/18 (2006.01) C08G 59/68 (2006.01) C09D 163/00 (2006.01)
Patent
CA 2202336
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.
Correll Glenn D.
Daly Andrew T.
Haley Richard P.
Horinka Paul R.
Kozlowski Joseph J.
Gowling Lafleur Henderson Llp
Morton International Inc.
Rohm And Haas Chemicals Llc
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