Johns Manville

Diego Pedrazzoli

Jordan Kortmeyer

Bradley Robert Crume

Jawed Asrar

Lance Wang

Lichih R Peng

Daniel R Blasini

Daniel Blasini

A self-adhering roofing membrane may include a polymeric membrane. The roofing membrane may include a first adhesive layer disposed on a major surface of the polymeric membrane. The first adhesive layer may include one or both of a hot melt adhesive and a butyl rubber-based adhesive. The roofing membrane may include a UV curable adhesive layer disposed on the first adhesive layer. The UV curable adhesive layer may have a thickness of less than about 4 mils.

Double pass process of making a self adhering roofing membrane with improved adhesion at lower installation temperature

Disclosed is an adhesive composition comprising an acrylic resin and an oligomeric resin having a reactive group and methods for making and using the adhesive composition in roofing membranes. The adhesive composition is thermally cured to form an adhesive layer. The adhesive composition may be applied to a membrane, such as a single-ply membrane, and then thermally cured. The single-ply membrane may then be adhered, via the adhesive layer, to a substrate, such as a roofing substrate.

Membranes comprising a thermally cured adhesive

A roofing membrane includes a thermoplastic polyolefin (TPO) layer and a polyvinyl chloride (PVC) layer. The TPO layer forms a bottom layer of the roofing membrane, and the PVC layer is positioned atop the TPO layer so that the PVC layer forms a top layer of the roofing membrane. The TPO layer and the PVC layer are configured to be chemically compatible so that the TPO layer and the PVC layer are chemically bonded and function as a single roofing membrane. Compatibilizing includes at least one of (i) adding a compatibilizing agent to at least one of the TPO material and the PVC material prior to extrusion and (ii) positioning at least one compatibilizing film, prior to bonding, between the TPO material and the PVC material.

Hybrid roofing membrane and methods of making same

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Littleton, CO, United States of America

Diego Pedrazzoli