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US 10,550,575 B2Granted
Bonding adhesive and adhered roofing systems prepared using the same
AssigneeFirestone Building Products Company, LLC
InventorsJiansheng Tang, Joseph Carr
Life of this patent
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Abstract
A bond adhesive composition comprising a polymer having a silicon-containing hydrolyzable terminal group and a hydrocarbon resin, where the composition is substantially devoid of phenolic resin.
Claims26
An adhered membrane roof system comprising:
- a roof substrate;
- a polymeric membrane comprising EPDM;
- and
- an adhesive layer disposed between the roof substrate and the polymeric membrane that is adhered directly to the polymeric membrane, where there is no fleece or other backing layer between the roof substrate and the polymeric membrane, said adhesive layer being formed from a bond adhesive composition comprising:
- a polymer having a silicon-containing hydrolysable terminal group and from about 1 to about 30 wt. % of a C9 aromatic hydrocarbon tackifying resin, where the bond adhesive composition is devoid of phenolic resin, where the hydrocarbon tackifying resin is characterized by a softening point of from 90 to about 140° C., and a number average molecular weight of from about 300 to about 3000 g/mole.
2 more elements
A method for forming an adhered membrane roof system, the method comprising:
- applying a bond adhesive composition to a roof substrate to form an adhesive layer, where the bond adhesive composition includes a polymer having a silicon-containing hydrolyzable terminal group and from about 1 to about 30 wt. % of a C9 aromatic hydrocarbon tackifying resin, where the bond adhesive composition is devoid of phenolic resin, where the hydrocarbon tackifying resin is characterized by a softening point of from 90 to about 140° C. and a number average molecular weight of from about 300 to about 3000 g/mole;
- and
- applying a polymeric membrane comprising EPDM directly to the adhesive layer, where there is no fleece or other backing layer between the roof substrate and the polymeric membrane.
Dependencies are inferred from the claim text.