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AssigneeMorton International, Inc.
InventorsGlenn D. Correll, Andrew T. Daly, Joseph J. Kozlowski, Richard P. Haley, Jeno Muthiah, Paul R. Horinka, Eugene P. Reinheimer
Estimating the term…
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.
An article coated with a fused and cured coating powder which comprised an extruded mixture of a self-curing epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, said catalyst being epoxy adduct of an imidazole having the general formula:
A paper article coated with a fused and cured coating powder which comprised an extruded mixture of a self-curing epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, said catalyst being an epoxy adduct of an imidazole having the general formula:
A wooden article coated with a fused and cured coating powder which comprised an extruded mixture of a self-curing epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, said catalyst being an epoxy adduct of an imidazole having the general formula:
A plastic article coated with a fused and cured coating powder which comprised an extruded mixture of a self-curing epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, said catalyst being an epoxy adduct of an imidazole having the general formula:
An article coated with a fused and cured coating powder which comprised an extruded mixture of an epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, wherein the curing agent of (B) is an epoxy adduct of an aliphatic polyamine having a primary or a secondary amino group.
A paper article coated with a fused and cured coating powder which comprised an extruded mixture of an epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, wherein the curing agent of (B) is an epoxy adduct of an aliphatic polyamine having a primary or a secondary amino group.
The article of claim wherein the catalyst is an imidazole having the general formula:
A wooden article coated with a fused and cured coating powder which comprised an extruded mixture of an epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, wherein the curing agent of (B) is an epoxy adduct of an aliphatic polyamine having a primary or a secondary amino group.
The article of claim wherein the catalyst is an imidazole having the general formula:
A plastic article coated with a fused and cured coating powder which comprised an extruded mixture of an epoxy resin and (A) a catalyst or (B) an amount of a low temperature curing agent insufficient to cause substantial curing of the resin during extrusion, and an amount of the same or different low temperature curing agent sufficient to complete the cure, wherein the curing agent of (B) is an epoxy adduct of an aliphatic polyamine having a primary or a secondary amino group.
Dependencies are inferred from the claim text.