Roofing product including bio-based asphalt mixture and methods of making the roofing product and the roofing-grade asphalt mixture

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United States of America

PATENT NO 12234648
APP PUB NO 20230175262A1
SERIAL NO

18163316

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Abstract

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A method of forming an asphalt mixture includes mixing a polyol with a bio-source material to form a bio-asphalt. The method can further include mixing the bio-asphalt with a bitumen source different from the bio-asphalt to form an asphalt mixture. The bio-source material can include an oil, such as a vegetable oil, an animal fat, or any combination thereof. The bitumen source can include a petroleum-based asphalt. The method can further include adding a modifier, such as a fatty acid, a polycarboxylic acid, a polyacrylic acid, a polyacrylate comprising a copolymer, or any combination thereof. Moreover, a roofing grade asphalt mixture includes a bio-asphalt. The bio-asphalt includes an alkyd, wherein the alkyd is a reaction product of a polyol and a bio-source material. The roofing grade asphalt mixture further includes a bitumen source material and particles.

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Patent Owner(s)

  • CERTAINTEED LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hong, Keith C Lititz, US 68 1239
Jacobs, Gregory F Sullivan, US 232 6769
Ranjan, Rajesh Princeton, US 22 108

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