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US 6,607,793 B2Granted
Large width heat-weldable roof membrane
AssigneeOMNOVA Solutions Inc.
InventorsMichael J. Hubbard, Raymond J. Weinert, John Pomeroy
Life of this patent
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Abstract
A large width single-ply heat-weldable roof membrane. The roof membrane includes at least two sheets of a thermoplastic polyolefin and one fold strip of a thermoplastic elastomer. The sheets have side edges. The fold strip is bonded to the sheets to join the sheets and form the large width single-ply roof membrane. The thermoplastic elastomer consists of a highly cross-linked rubbery polymer and a thermoplastic polymer.
Claims9
A large width single-ply heat-weldable roof membrane comprising:
- at least two sheets of a thermoplastic polyolefin, said sheets having side edges;
- and one fold strip of a thermoplastic elastomer bonded to said sheets to join said sheets;
- wherein said thermoplastic elastomer is a cross-linked rubbery polymer and a thermoplastic polymer, wherein the rubbery polymer is selected from the group consisting of ethylene-propylene-diene polymer, ethylene-propylene copolymer rubber (EPR), and ethylene octane.
Dependencies are inferred from the claim text.