B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
20/23, 154/90
B32B 7/12 (2006.01) B32B 5/18 (2006.01) E04D 11/02 (2006.01)
Patent
CA 1183073
PROTECTIVE COVERING AND METHOD ABSTRACT OF THE DISCLOSURE A method and product produced thereby of bonding insulation board to a substrate. The method comprises applying by spraying a layer of an adhesive to a substrate positioning the insulation board on the substrate in the desired position prior to curing the adhesive followed by curing the adhesive. The adhesive consists of a heated mixture of a polyurethane adhesive and an isocyanate curing catalyst which is admixed in a proportion to permit curing the adhesive at a temperature of less than 140°F. The insulation board is positioned on the adhesive preferably from about one to about ten minutes after spraying the adhesive layer onto the surface of the substrate. By this method the use of asphalt and other hot tar materials with the attendant risk of damage to the insulating board may be largely eliminated.
389432
Borden Ladner Gervais Llp
Suomala Paul
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