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US 7,147,897 B2Granted
Weldable compositions comprising a conductive pigment and silicon and methods for using the same
AssigneePPG Industries Ohio, Inc.
InventorsMichael J. Pawlik, Ralph C. Gray, Steven D. Perrine, Daniel L. Hopkins
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Abstract
A weldable coating composition is disclosed. The composition comprises a binder in which is dispersed a conductive pigment and a source of silicon. Enhanced corrosion protection is offered, without sacrificing weldability of the coating layer. The composition is applied to and cured on a metal substrate.
Claims25
A weldable composition comprising:
- a) a binder comprising the reaction product of one or more epoxy-containing materials and one or more phosphorous-containing materials;
- b) a conductive pigment;
- and
- c) a particulate material consisting essentially of elemental silicon.
1 more element
Dependencies are inferred from the claim text.