Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1982-03-02
1983-11-29
Dawson, Robert A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156311, 156324, 156337, 156498, 156547, 156550, 4273982, 428489, B32B 3106, B32B 3112
Patent
active
044179391
ABSTRACT:
A system for producing a relatively thin bitumen laminate comprised of an bitumen mastic core to which is adhered a fabric web on each side thereof, adherence being established simply by contacting the fabric web with the bitumen mastic while it is hot. The method includes continuous deposit at a fixed location of hot bitumen mastic to form the core on a moving lower fabric web, the laminated lower fabric web being in direct contact with a fluid cooled endless belt to prevent degradation of the fabric. The bitumen mastic is deposited on the lower web as it traverses the endless belt's upstream end roll, thereby insuring a firm, non-flexible surface upon which the mastic core can be sized by a doctor roll on the lower web. A moving top fabric web is laminated to the sized bitumen mastic core on the lower web at a location that is variable relative to the fixed location at which the mastic is deposited on the lower web. This variability of the upper fabric web's lamination point with the bitumen mastic core and lower web allows the system to be easily and simply modified for use with various synthetic fabrics, as well as with various thickness bitumen mastic cores, simply by adjusting the upper web's lamination point to that location which does not cause degradation of the upper fabric web due to the temperature of the mastic core.
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Dawson Robert A.
McAdams Manufacturing Co., Inc.
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