B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/08 (2006.01) B05D 5/10 (2006.01) B32B 7/12 (2006.01) C08J 5/12 (2006.01) C09J 179/08 (2006.01) H05K 3/38 (2006.01) H05K 1/00 (2006.01)
Patent
CA 2085653
60LT01061 POLYETHERIMIDE/DIMETHYLSILOXANE COPOLYMER ADHESIVE SYSTEM FOR BONDING COPPER FOIL TO POLYETHERIMIDE FLEXIBLE FILMS ABSTRACT OF THE DISCLOSURE Broadly, the present invention is directed to a method for making a composite article wherein metal foil is laminated to a polyetherimide sheet. The method comprises applying an adhesive composition to one side of each of two foils of metal. The adhesive composition comprises a polyetherimide/amine-terrminated dimethylsiloxane copolymer. The adhesive coated side of the metal foil then is mated on opposite sides of the polyetherimide sheet under elevated temperature and pressure for forming the composite article. The polyetherimide sheet advantageously is flexible for use in forming a flexible circuit board.
Company General Electric
Craig Wilson And Company
LandOfFree
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