Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1989-12-28
1991-10-29
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Composite
Of polyamidoester
4284246, 4284258, 4284259, 524 93, 524 94, 524435, 524715, 524720, B32B 2740
Patent
active
050615661
ABSTRACT:
A corrosion inhibiting, EMI/RFI shielding composition is provided comprising a polyurethane resin which comprises a hydroxy or amine functional first polymer and an isocyanate terminated second polymer, a stabilized conductive filler, and an azole. In one embodiment of the invention a coating is provided comprising a polyurethane which comprises a fluoroolefin vinyl ether and an isocyanate terminated castor oil prepolymer, a stabilized copper powder, and a triazole selected from the group consisting of alkyl substituted aromatic trianzoles and other azoles. The invention further provides a method of coating a substrate with a coating of the invention in order to provide EMI/RFI shielding and prevent corrosion, and a substrate thus coated.
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Baker William L.
Cashion Jr. Merrell C.
Chomerics, Inc.
Hubbard John Dana
Ketley Celia H.
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