Patent ID: 6297324
Filing Date: 2001-10-02
Classification: C08L,C09J

Abstract:
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.degree. C., and support a static load of at least 300 grams at 70.degree. C.