Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-08-19
1999-05-25
Cameron, Erma
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525504, C08F28300
Patent
active
059070200
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: 3384610 (1968-05-01), Lee
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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