C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
400/4043, 400/51
C09J 4/00 (2006.01) C08L 23/32 (2006.01) C08L 61/10 (2006.01)
Patent
CA 1278131
ABSTRACT OF THE DISCLOSURE Adhesive compositions for bonding EPDM elastomers comprise (a) a neutralized sulfonated EPDM elastomeric terpolymer; (b) an organic hydrocarbon solvent; (c) an ionic plasticizer or mixture of ionic plasticizers; (d) a phenolic hydrocarbon resin or mixture of phenolic hydrocarbon resins and (e) a material selected from mineral oils, petroleum oils, polybutenes, polyisobutylenes and ethylene/propylene copolymers. Such adhesive compositions are particularly suitable for bonding sheets of black EPDM, especially sheets of cured black EPDM, elastomeric membranes together and may also be utilized to bond sheets of cured black EPDM to other uncured elastomers and to non-elastomeric substrates as well. The adhesive compositions by proper selection of the component (e) material and the addition of a color pigment or dye thereto may also be used to bond colored EPDM elastomers such as white, blue, yellow, green, etc. An adhesive composition for bonding sheets of EPDM elastomeric roofing membrane in cases where the membrane is to be anchored to the roof surface by mechanical systems will further contain a hydrophobic silica.
502009
Fieldhouse John W.
Stayer Mark L.
Fieldhouse John W.
Firestone Tire & Rubber Company (the)
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Stayer Mark L.
LandOfFree
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