Composition for asphalt roofing materials
OwnerFred R. Huege, Starr Curtisinventors
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Abstract
An asphalt roofing composition is provided in the form of a roll or a shingle in which a hot mixture of an asphaltic base and filler is applied to a substrate form, wherein the composition also comprises an amount of Ca(OH)2 (HL) in order to impart strength and durability to the composition. The composition contains HL between about 1-10%, and preferably between about 3-5%, of the total composition by weight. The filler can be fly ash, CaCO3, MgCO2.CaCO3, MgCO3, or other suitable materials known in the art. In a typical embodiment of the invention, the HL is added directly to the asphaltic base of the composition either with the filler, or with filler added after mixing the asphalt and HL.
Claims36
An asphalt roofing composition in the form of a roll or a shingle-like structure in which a hot mixture of an asphaltic base and filler is applied to a substrate form, wherein the composition also comprises an amount of an alkaline earth metal hydroxide in order to impart strength and durability to the composition.
An asphalt roofing composition in the form of a roll or a shingle-like structure in which a hot mixture of an asphaltic base, filler, and water is applied to a substrate form, wherein the composition also comprises an amount of an alkaline earth metal oxide in order to impart strength and durability to the composition, the metal oxide reacting with water in the filler to produce the corresponding metal hydroxide.
A method of forming an asphalt roofing composition in the form of a roll or a shingle-like structure, the method comprising:
- heating an amount of asphalt;
- providing a desired amount of an alkaline earth metal hydroxide;
- providing a filler;
- combining the asphalt, metal hydroxide, and filler to form the composition;
- and
- placing the composition onto a substrate form and allowing the second hot mixture to cool around the substrate form.
A method of forming an asphalt roofing composition in the form of a roll or a shingle-like structure, the method comprising:
- heating an amount of asphalt;
- providing a desired amount of an alkaline earth metal oxide;
- providing a filler and water;
- combining the asphalt, metal oxide, water and filler to form the composition;
- and
- placing the composition onto a substrate form and allowing the second hot mixture to cool around the substrate form.
Dependencies are inferred from the claim text.