Bonding adhesive and adhered roofing systems prepared using the same
AssigneeAmrize Technology Switzerland LLC
InventorsJiansheng Tang, Joseph Carr
Life of this patent
Estimating the term…
Abstract
A method is provided for forming an adhered membrane roof system that meets Factory Mutual (FM) 4470/4474 standards for wind uplift. The method comprises applying a bond adhesive to a substrate on a roof to form an adhesive layer and applying a membrane directly to the adhesive layer. The bond adhesive includes a moisture-curable polymer.
Claims18
A method for forming an adhered membrane roof system that meets FM 4474 standards for wind uplift, the method comprising:
- (i) applying a bond adhesive to an asphalt-based substrate on a roof to form an adhesive layer, where the bond adhesive includes a silyl-terminated polymer and a hydrocarbon tackifier resin, and where the bond adhesive is devoid of phenolic resin;
- and
- (ii) applying a roofing membrane directly to the adhesive layer, whereby a bond is formed between the substrate and the membrane that exceeds 1 pli, when measured according to ASTM D1876, where the roofing membrane is a thermoplastic olefin or EPDM membrane.
A method for forming an adhered membrane roof system that meets FM 4474 standards for wind uplift, the method comprising:
- (i) applying a bond adhesive to an asphalt-based substrate on a roof to form an adhesive layer, where the bond adhesive includes a silyl-terminated polymer and a low VOC-generating moisture scavenger, where the low VOC-generating moisture scavenger is a silane including at least one organo functional group and at least one hydrolysable group that, upon hydrolysis, does not generate methanol;
- and
- (ii) applying a roofing membrane directly to the adhesive layer, whereby a bond is formed between the substrate and the membrane that exceeds 1 pli, when measured according to ASTM D1876, where the roofing membrane is a thermoplastic olefin or EPDM membrane.
A method for forming an adhered membrane roof system that meets FM 4474 standards for wind uplift, the method comprising:
- (i) applying a bond adhesive to an asphalt-based substrate on a roof, where the bond adhesive includes a silyl-terminated polymer and a non-phthalate plasticizer;
- and
- (ii) applying a roofing membrane directly to the adhesive layer, whereby a bond is formed between the substrate and the membrane that exceeds 1 pli, when measured according to ASTM D1876, where the roofing membrane is a thermoplastic olefin or EPDM membrane.
Dependencies are inferred from the claim text.