Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1993-05-03
1994-11-08
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 77, 156 78, 156 79, 156575, 156578, B32B 3106
Patent
active
053623428
ABSTRACT:
A method of bonding a roof tile to a roof substrate utilizing a two component polyurethane foam. The method includes the step of applying under low pressure a stream of a two component foamable liquid polyurethane on a roof substrate. Preferably, the foamable liquid polyurethane has a density in the range of about one and one-half to about two pounds per cubic foot and a reactivity period in the range of about one and one-half to about four minutes. Preferably, the foamable liquid polyurethane is applied at a rate of about two to about three pounds per minute. The roof tile is placed into contact with the foamable liquid polyurethane during the reactivity period of the foamable liquid polyurethane.
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Huber E. Richard
Hughes Thomas C.
Murray Pat L.
Polyfoam Products, Inc.
Weston Caleb
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