Process for bonding together boards of wood with rough or smooth surface, of sliced off or peeled veneer, product used for said bonding and final material obtained
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United States of America Patent
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-
Mar 8, 1983
Grant Date -
N/A
app pub date -
May 19, 1981
filing date -
May 20, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a process for bonding together boards of wood with surface rough from sawing or with smooth surface, or sliced off or peeled veneers, wherein at least one of the surfaces to be brought into contact is coated with the aid of an expanding polymer glue containing at least one hardener and at least one volatile pore-generating agent, the mating surfaces are brought into contact with possible application of a pressure and the whole is then heated up to a temperature at which the expansion of the glue has been provoked, up to a rate of expansion of between 30 and 100%. The invention also relates to the product used for said bonding and to the final material obtained.
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Cited Art Landscape
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