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Selective deposition of circuit-protective polymer

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专利名称:Selective deposition of circuit-protective

polymers

发明人:Alphonsus V. Pocius,Rita A. Latourelle申请号:US091559申请日:20010626公开号:US06803092B2公开日:20041012

摘要:A composition for electrophoretic deposition of an insulating, protectivecoating. The composition comprises a cationic resin emulsion; and a curative mixed withthe cationic resin emulsion. The composition after electrophoretic deposition and curingprovides the protective coating that has a concentration of extractable ioniccontaminants less than about 200 nanograms/cm; and a concentration of labile

components less than about 36,000 nanograms/cm. A coating composition according tothe present invention provides an article in the form of a flexible printed circuit, used asan interconnect, comprising a film substrate and a plurality of conductive traces adjacentto a surface of the film substrate to receive the insulating protective coating usingelectrophoretic deposition techniques.

申请人:3M INNOVATIVE PROPERTIES COMPANY

代理人:Melanie G. Gover

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