B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 5/28 (2006.01) B05D 5/10 (2006.01) B29C 65/34 (2006.01) B32B 27/04 (2006.01) B32B 27/12 (2006.01) C08J 5/12 (2006.01) C09J 5/06 (2006.01) H05B 3/28 (2006.01)
Patent
CA 2052427
Abstract Bonding of Thermoset Composite Structures A pair of thermoset composite structures (19,19') are bonded together by a pair of adhesive strips (10,10'). An adhesive strip (10) is comprised of a layer of semi-crystalline thermoplastic material (12), a layer of amorphous thermoplastic material (14), a layer of dry fiber reinforcement (16) partially embedded in the layer of amorphous thermoplastic material (14), and a layer of thermosetting resin (18) covering the exposed fibers of the dry fiber reinforcement. An adhesive strip is bonded to the bonding surface (20) of the structure (19) during the curing process for the thermoset composite structure. A resistance heating element is placed between the bonding surfaces (20,20'), the bonding surfaces (20,20') are pressed together, and electrical energy is passed through the heating element (24) to heat the joint and fuse the thermoplastic adhesive layers together. The dry fiber reinforcement (16) forms a mechanical lock between the cumulative layer of thermoplastic adhesive (32) and the thermosetting structures (19,19') to provide the bond strength. S-4297 - 19 -
Davis Geoffrey C.
Jacaruso Gary J.
Mcintire Allen J.
Swabey Ogilvy Renault
United Technologies Corporation
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