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AssigneeUnitech Co., Ltd.
InventorsWayne B. LeGrande, Robert C. Boyd
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A coating composition having outstanding electrically conductive and electromagnetic radiation absorptive properties is disclosed with a water emulsion polymer binder. The binder is a blend of a first emulsion containing a conjugated diene as monomer or comonomer, and a second emulsion containing an acrylic, aliphatic or aromatic polyurethane, polyester urethane, polyester, epoxy, polyamide, polyimide, vinyl, fluoropolymer, or silicone polymer. An effective amount of electrically conductive and electromagnetic radiation absorptive particles is dispersed in the binder. The particles include a combination of graphite particles, carbon nanotubes and metal containing particles. An effective amount of water is also present.
A coating composition having electrically conductive and electromagnetic radiation absorptive properties, comprising:
A coating composition having electrically conductive and electromagnetic radiation absorptive properties, which comprises by weight:
A method of electromagnetic shielding of an object which comprises applying a continuous coating to said object to be shielded, said coating including a water emulsion polymer binder, uncoated carbon particles and metallic coated ceramic microspheres or ceramic fibers sufficient to provide electrical conductivity and electromagnetic radiation absorption properties to said coating, and an effective amount of water, and allowing said coating to cure and dry to a hard coating surface.
Dependencies are inferred from the claim text.