Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-09-08
1977-01-18
Whitby, Edward G.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 82, 156148, 156290, 156306, 156324, 260 25AE, 260 25BE, 260 25M, 264 456, 428262, 428323, 428904, B29D 702
Patent
active
040037770
ABSTRACT:
A method of forming a laminated structure in which an outer layer of hardenable material and a carrier layer are respectively bonded to opposite faces of a preformed substantially shape-retaining barrier layer. The face of the carrier layer to which one of the opposite faces of the barrier layer is bonded is formed with projecting and recess portions and the barrier layer is bonded thereto in such a manner so as to adhere substantially only to the projecting portions without filling the recess portions. For instance, when the carrier layer is formed from a sheet of woven or knitted textile material, the barrier layer will adhere only to portions of the yarns or threads at the one face of the sheet substantially without filling the interstices between the threads. Evidently, the hardenable material of the outer layer will also not penetrate into the interstices, due to the interposition of the barrier layer between the outer and the carrier layer, even if the material of the outer layer is applied in flowable condition or in liquid form to the preformed barrier layer so that the laminated structure produced will be very pliable.
REFERENCES:
patent: 2722495 (1955-11-01), Hedges
patent: 3562043 (1971-02-01), Eddy
patent: 3634184 (1972-01-01), Wang
patent: 3832214 (1974-08-01), Wang
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