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US 2022/0126547 A1Published application
Asphaltic sheet materials including expandable graphite
AssigneeHolcim Technology Ltd
InventorsWensheng ZHOU, Donald R. KIRK, James YOUNG, Robert ANDERSON, Joseph STANDEFORD, Lance BLACK
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Abstract
An asphaltic sheet comprising an asphaltic component including an asphalt binder and expandable graphite.
Claims16
An asphaltic sheet comprising:
- (i) an asphaltic component including an asphalt binder and a flame retardant, other than expandable graphite, dispersed within the asphalt binder, said asphaltic component including first and second planar surfaces;
- (ii) a release film removably secured to said second planar surface;
- (iii) a polymeric sheet adhesively secured to said second planar surface;
- and
- (iv) a concentrated region of expandable graphite at or near at least one of said first and second planar surfaces.
2 more elements
A method forming an asphaltic composite, the method comprising:
- (i) providing an asphaltic sheet, where the asphaltic sheet includes an asphaltic binder and a flame retardant dispersed within said asphaltic binder, and where said asphaltic sheet includes first and second planar surfaces;
- (ii) introducing expandable graphite to the first planar surface of the asphaltic sheet;
- (iii) laminating a polymeric sheet to the first planar surface of the asphaltic sheet;
- and
- (iv) removably securing a release film to the second planar surface of the asphaltic sheet.
2 more elements
Dependencies are inferred from the claim text.