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US 2025/0128504 A1Published application
Thermoplastic roofing membranes adapted for adhesion to polar adhesives
AssigneeHolcim Technology Ltd
InventorsHao WANG, Donna C. TIPPMANN
Life of this patent
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Abstract
A method of preparing a thermoplastic roofing membrane, the method comprising (i) extruding a composition including a thermoplastic polymer and a mineral filler to form an extrudate; (ii) forming the extrudate into a sheet having first and second planar surfaces; (iii) allowing the sheet to at least partially cool; and (iv) mechanically treating the first planar surface of the sheet to thereby expose the mineral filler.
Claims21
1-10. (canceled)
A thermoplastic roofing membrane comprising:
- (i) a first extruded thermoplastic layer, where said first extruded thermoplastic layer includes first and second planar surfaces, and where said first extruded thermoplastic layer includes a first mineral filler;
- (ii) an reinforcing fabric adjacent to said second planar surface of said first thermoplastic layer;
- (iii a second extruded thermoplastic layer laminated to said second planar surface of said first extruded thermoplastic layer, where said first planar surface of said first extruded thermoplastic layer is a mechanically-treated surface that exposes the first mineral filler contained within the first extruded layer.
A roofing system comprising a substrate;
- and a thermoplastic membrane adhesively mated to said substrate through a polar adhesive, said thermoplastic membrane including first and second thermoplastic layers laminated to each other with a reinforcing fabric disposed between the first and second thermoplastic layers, said polar adhesive adhesively mating the membrane along a mechanically treated surface that exposes mineral filler within the membrane.
Dependencies are inferred from the claim text.