Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1978-05-30
1979-10-02
Goolkasian, John T.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 734, 1565801, 228 1R, 264 23, 428167, 428185, B29C 2708, B32B 3216
Patent
active
041697510
ABSTRACT:
An article and its method of manufacture is disclosed wherein at least three sheets of thermoplastic web material are bonded to form a laminated unit. Energy director element sets are disposed between adjacent sheets in an orientation such that the director elements of one set are angularly oriented with respect to those of the next adjacent set to define points at which the elements of one set cross the elements of the adjacent set. When a compressive force and high frequency vibratory energy are applied to the unit, the pressure and vibratory energy are concentrated at the defined points so that the thermoplastic material in the region of the concentrated pressure is first to soften. Subsequent application of compressive force and vibratory energy softens the thermoplastic material adjacent the defined points. By initially concentrating the pressure and vibratory energy, the bonding time is substantially reduced and an even flow of material is assured.
REFERENCES:
patent: 3661661 (1972-05-01), Berleyoung
patent: 3819437 (1974-06-01), Paine
patent: 3874963 (1975-04-01), Barger
patent: 3973064 (1976-08-01), Paine
patent: 3992158 (1976-11-01), Przybylowicz et al.
patent: 4060438 (1977-11-01), Johnson
Dawson Robert A.
Eastman Kodak Company
Goolkasian John T.
Sales M. S.
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