Membranes comprising a thermally cured adhesive
AssigneeJohns Manville
InventorsJordan Kortmeyer, Diego Pedrazzoli
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Abstract
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.
Claims20
A method of applying an adhesive layer to a membrane, the method comprising:
- a) providing a membrane;
- b) applying an adhesive composition to a surface of the membrane, wherein the adhesive composition comprises an acrylic resin and an oligomeric resin having a reactive group;
- and
- c) thermally curing the adhesive composition to form an adhesive layer on the membrane.
A method of adhering a membrane to a roofing substrate, the method comprising:
- a) providing a membrane;
- b) applying an adhesive composition to a surface of the membrane, wherein the adhesive composition comprises an acrylic resin and an oligomeric resin having a reactive group;
- c) thermally curing the adhesive composition to form an adhesive layer on the membrane;
- and
- d) contacting the adhesive layer with a roofing substrate to adhere the membrane to the roofing substrate.
An adhesive layer comprising an acrylic-based polymer crosslinked by thermal heating with an oligomer having a reactive group, wherein the adhesive layer has a (shear adhesion failure temperature test (SAFT) value from 80 to 110° C. and a Tg from −40 to −30° C.
Dependencies are inferred from the claim text.