Patent ID: 6764968
Filing Date: 2004-07-20
Classification: B32B,D06N,E04D,Y10T

Abstract:
A recyclable, reinforced roofing membrane for use in single ply roofing systems, comprising:first and second propylene-ethylene-copolymer sheets wherein the propylene-ethylene-copolymer of the sheets is polymerized from a polypropylene and ethylene-monomer blend comprising about 30% to about 70% by weight polypropylene and about 30% to about 70% by weight ethylene-monomer; and a hydrophobic polypropylene reinforcing mesh intermediate the first and second propylene-ethylene-copolymer sheets and bonded to the first and second propylene-ethylene-copolymer sheets for reinforcing the membrane; the polypropylene reinforcing mesh being chemically compatible with the first and second propylene-ethylene-copolymer sheets for permitting scrap produced in a process of manufacturing of the membrane to be recycled back into the process.