Crude sterol as an additive in asphalt binder

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United States of America Patent

PATENT NO 11912874
APP PUB NO 20190153229A1
SERIAL NO

16308408

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Abstract

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Disclosed are binders and methods for making such binders with crude sterols. The crude sterols improve various rheological properties of the binders. The disclosure provides a method for slowing the aging rate of aged asphalt binder comprising adding a crude sterol to an asphalt binder, wherein the asphalt binder comprises both virgin asphalt binder, and reclaimed asphalt binder material comprising asphalt pavement (RAP), asphalt shingles (RAS) or combinations of RAP and RAS.

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Patent Owner(s)

Patent OwnerAddress
A L M HOLDING COMPANY920 10TH AVENUE NORTH ONALASKA WI 54650
ERGON ASPHALT & EMULSIONS INC2829 LAKELAND DRIVE JACKSON MS 39232

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Baumgardner, Gaylon L Arkadelphia, US 53 618
Hanz, Andrew La Crosse, US 19 149
Reinke, Gerald H La Crosse, US 54 646

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