Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2008-01-29
2008-01-29
Feely, Michael J. (Department: 1712)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S416000, C428S418000, C427S239000, C427S318000, C427S327000, C427S386000, C427S410000, C427S458000, C427S470000, C523S445000, C523S457000, C525S523000
Reexamination Certificate
active
07323234
ABSTRACT:
The present invention provides a curable alkanolamine containing epoxy powder coating composition comprising at least one epoxy resin, at least one alkanolamine, a curing agent in an amount effective to cure the coating and optionally at least one zinc borate compound. Further, the present invention provides a method of cathode corrosion protection which includes the steps of subjecting a metal substrate to a mechanical treatment, applying the curable alkanolamine containing epoxy powder coating composition to the surface of the metal substrate, and polarizing the coated material as a cathode. The present invention also relates to a process for making and applying the alkanolamine containing epoxy powder coating compositions of the present invention.
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Edmondson Stephen J.
Marx Edward John
E.I. du Pont de Nemours & Company
Feely Michael J.
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