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US 2019/0375940 A1Published application
Asphalt compositions including reclaimed asphalt material
AssigneeOwens Corning Intellectual Capital, LLC
InventorsMichael Franzen, Laurand Lewandowski
Life of this patent
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Abstract
Asphalt compositions for use in roofing products are disclosed that include a virgin asphalt material and a reclaimed asphalt material. The asphalt compositions exhibit properties comparable to conventional oxidized asphalt compositions, yet the asphalt compositions are made without using an oxidation or air blowing process.
Claims19
An asphalt composition comprising:
- a virgin asphalt material;
- and
- a reclaimed asphalt material having a solubility of at least 94% and a softening point of 190° F. to 320° F.,
- wherein the asphalt composition has a solubility of at least 99%, a softening point of 135° F. to 235° F., and a penetration at 77° F. of 12 dmm to 60 dmm.
1 more element
A wax-modified asphalt composition comprising:
- a virgin asphalt material;
- a reclaimed asphalt material having a solubility of at least 94% and a softening point of 190° F. to 320° F.;
- and
- a wax,
- wherein the wax-modified asphalt composition has a solubility of at least 95%, a softening point of 210° F. to 230° F., and a penetration at 77° F. of 12 dmm to 30 dmm.
2 more elements
A method of making an asphalt composition, the method comprising:
- mixing a virgin asphalt material with a reclaimed asphalt material at a temperature of 300° F. to 400° F. to form the asphalt composition,
- wherein the reclaimed asphalt material has a solubility of at least 94% and a softening point of 190° F. to 320° F.,
- wherein the asphalt composition has a solubility of at least 99%, a softening point of 135° F. to 225° F., and a penetration at 77° F. of 12 dmm to 35 dmm, and wherein no oxidation or air blowing process is used to make the asphalt composition.
Dependencies are inferred from the claim text.