Method and composition for electrostatic coating, and articles made therefrom
AssigneeMatthews, Inc.
InventorKevin E. Stay
Life of this patent
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Abstract
An improved method of pretreating and electrostatically coating an article made of a material which has little or no conductivity, and the article made therefrom.
Claims35
A method of electrostatically coating a substrate having poor electrical conductivity comprising the steps of:
- a) applying a surface treatment composition comprising a halogen, halogen salt, or halogen complex to said substrate to induce conductivity;
- b) applying a charge to said substrate after applying said surface treatment;
- and
- c) electrostatically applying a coating to said substrate.
A method of electrostatically coating a substrate having poor electrical conductivity comprising the steps of:
- a) applying a surface treatment composition comprising iodine or iodine complex to said substrate;
- b) applying a negative charge to said substrate;
- and
- b) electrostatically applying a coating to said substrate.
A conductivity inducing surface treatment composition applied to a substrate having poor electrical conductivity comprising a halogen, a halogen salt, or a halogen complex.
An article formed of a substantially nonconductive material wherein said article is pretreated with a surface treatment composition comprising a halogen, halogen complex, halogen salt, or mixture thereof, and electrostatically coated.
Dependencies are inferred from the claim text.