Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1997-03-17
1999-12-28
Crispino, Richard
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156259, 156264, 156286, 156322, 156512, 156563, 1565831, 83 15, 144348, B32B 3100
Patent
active
060076593
ABSTRACT:
A method for preparing a laminate including pressing a heater against the upper and lower surfaces of a veneer during which an inner portion of the veneer in the thickness direction is dried to the smallest extend then the surfaces so that a water content of the inner portion is kept higher than that of the surfaces, dividing the veneer in terms of its thickness into two counter veneers, placing a ligneous board between the counter veneers using an adhesive so that the surfaces resulting from the diving are disposed as outer surfaces, and pressing a heater against the outer surfaces to effect bonding of the counter veneers and the ligneous board. The period of time for pressing the heater against the upper and lower surfaces of the veneer is such that the surfaces and a region in a vicinity thereof, against which the heaters have been pressed, are dried to a water content of between about 5% and about 20% while the inner portion of the veneer in the thickness direction is dried to a water content higher than the fiber saturation point at which contraction begins.
REFERENCES:
patent: 3205111 (1965-09-01), Williamson et al.
patent: 5255726 (1993-10-01), Hasegawa et al.
patent: 5564199 (1996-10-01), Yamamoto et al.
patent: 5758434 (1998-06-01), Gipson
Crispino Richard
Gray Linda L
Meinan Machinery Works Inc.
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