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AssigneeAdco Products, Inc.
InventorsBrian Jonathon Briddell, Dennis Keith Fisher, James Fredrick Wood
Estimating the term…
A cured adhesive tape composition for adhering together roofing materials such as synthetic EPDM rubber and which provides long term water tightness is provided. The adhesive composition includes a) a rubbery polymer comprising a blend of (i) from about 12% or less by weight of the total composition of an ethylene-propylene-diene terpolymer, (ii) a halogenated butyl rubber or a halogenated copolymer of p-methylstyrene and isobutylene, (iii) polyisobutylene, and (iv) a butyl terpolymer, and b) a compatible tackifier, and c) an accelerator/cure package for the rubbery polymer. The cured composition exhibits a peel strength of at least 1000 grams/cm at room temperature, at least 500 grams/cm at 70° C., and supports a static load of at least 300 grams at 70° C.
A cured adhesive composition for adhering together EPDM roofing materials comprising a) a rubbery polymer comprising a blend of (i) from about 12% or less by weight of the total composition of an ethylene-propylene-diene terpolymer, (ii) a halogenated butyl rubber or a halogenated copolymer of p-methylstyrene and isobutylene, and (iii) polyisobutylene, and b) a compatible tackifier, said composition being fully vulcanized prior to use by heating to achieve essentially full crosslinking of the components, said composition having a peel strength of at least 1000 grams/cm at room temperature, at least 500 grams/cm at 70° C., and support a static load of at least 300 grams at 70° C.
An adhesive composition for adhering together roofing materials comprising:
Dependencies are inferred from the claim text.