Oxidized mixture of bio-based material and asphalt, a bio-based asphaltic material, and methods of making the same

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United States of America Patent

PATENT NO 9540544
SERIAL NO

13729222

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Abstract

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A method of forming an asphalt mixture can include mixing a bio-source material and a bitumen source to form a bitumen mixture. The bitumen mixture can be mixed with a catalyst to form the asphalt mixture. Particles can be added to the asphalt mixture to form a roofing-grade asphalt mixture. In an embodiment, the bitumen source material can have a softening point of at least approximately 93° C. and a penetration distance no greater than approximately 25 dmm. In another embodiment, the roofing-grade asphalt mixture can have a softening point of at least approximately 104° C., a penetration distance no greater than approximately 12 dmm, a viscosity of at least approximately 3000 cps at a temperature of 204° C., or any combination thereof. The asphalt mixture can be applied to a base material to form a roofing product. The asphalt mixture can be applied as a pavement product.

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Patent Owner(s)

Patent OwnerAddress
CERTAINTEED CORPORATION750 EAST SWEDESFORD ROAD P O BOX 860 VALLEY FORGE PA 19482

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hong, Keith Lititz, US 3 13
Jacobs, Gregory F Oreland, US 232 6769
Kalkanoglu, Husnu M Swarthmore, US 195 6626
Ranjan, Rajesh Princeton, US 22 108

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