Rejuvenation of vacuum tower bottoms through bio-derived materials

Patent metadata

Field	Value
Publication number	US-10961395-B2
Application number	US-201715445307-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	Feb 29, 2016
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

The present invention relates to an asphalt product. The asphalt product includes an asphalt binder and a bio-oil blend comprising a mixture of a non-hydrogenated bio-oil and a partially hydrogenated bio-oil, where the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C. The present invention further relates to methods of producing an asphalt product and methods of applying an asphalt product to a surface.

First claim

What is claimed:

1. An asphalt product comprising:
an asphalt binder and
a bio-oil blend comprising a mixture of a non-hydrogenated heat bodied bio-oil and a partially hydrogenated heat bodied bio-oil, wherein the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.

2. The asphalt product of claim 1 , wherein the binder is a vacuum tower distillation bottom.

3. The asphalt product of claim 1 , wherein the asphalt product has a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C.

4. The asphalt product of claim 1 , wherein the asphalt product has a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.

5. The asphalt product of claim 1 , wherein the asphalt product has a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C.

6. The asphalt product of claim 1 , wherein the bio-oil blend comprises 0.1 to 10.0 wt. % of the asphalt product.

7. The asphalt product of claim 1 , wherein the bio-oil is from an oil derived from a source selected from the group consisting of fish, animal, vegetable, synthetic and genetically-modified plant oils, and mixtures thereof.

8. The asphalt product of claim 1 , wherein the bio-oil blend is a mixture of heat-bodied linseed oil (HBL) and partially hydrogenated heat-bodied linseed oil (PHBL).

9. The asphalt product of claim 1 , wherein the product has a specific gravity of 1.019-1.052.

10. The asphalt product of claim 1 further comprising:
a mineral aggregate.

11. The asphalt product of claim 1 , wherein the product is in the form of an asphalt mixture.

12. The asphalt product of claim 1 further comprising:
fiberglass and
a mineral aggregate.

13. A roofing shingle, wherein the improvement comprises the asphalt product of claim 1 .

14. The asphalt product of claim 1 , wherein the asphalt binder modifier further comprises a carboxyl additive.

15. The asphalt product of claim 1 , wherein the asphalt binder further comprises a styrene-butadiene type polymer.

16. The asphalt product of claim 7 , wherein the bio-oil is an oil from a vegetable source.

17. The asphalt product of claim 16 , wherein the bio-oil is selected from the group consisting of high erucic acid rapeseed, soybean, safflower, canola, castor, sunflower, palm, and linseed oil.

18. The asphalt product of claim 7 , wherein the bio-oil is an oil from a fish source.

19. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for an unaged binder ranging from 0.21 kPa to 7.45 kPa at a temperature ranging from 64° C. to 82° C.

20. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for a short term aged binder ranging from 0.45 kPa to 23.25 kPa at a temperature ranging from 64° C. to 82° C.

21. The asphalt product of claim 3 , wherein the asphalt product has a shear stiffness for a long term aged binder ranging from 659.04 kPa to 10,883.63 kPa at a temperature ranging from 31° C. to 40° C.

22. The asphalt product of claim 4 , wherein the asphalt product has a viscosity of 0.18 Pa·s to 1.35 Pa·s at a temperature ranging from 135° C. to 165° C.

23. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.6469 Pa·s to 1.33 Pa·s at a temperature of 135° C.

24. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.3244 Pa·s to 0.5435 Pa·s at a temperature of 150° C.

25. The asphalt product of claim 20 , wherein the asphalt product has a viscosity of 0.1808 Pa·s to 0.2825 Pa·s at a temperature of 165° C.

Assignees

• Univ Iowa State Res Found Inc

Inventors

• Williams Ronald Christopher
• Podolsky Joseph Herbert
• Hernandez Nacu
• Cochran Eric W

Classifications

• E01C7/22

  Binder incorporated in hot state, e.g. heated bitumen · CPC title

• E01C7/187

  Repairing bituminous covers, e.g. regeneration of the covering material in situ, application of a new bituminous topping (application of thin surface layers with other binders E01C7/35; repairing pavings in general E01C11/005) · CPC title

• Y02A30/30

  in transportation, e.g. on roads, waterways or railways · CPC title

• C08L2555/64

  Oils, fats or waxes based upon fatty acid esters, e.g. fish oil, olive oil, lard, cocoa butter, bees wax or carnauba wax · CPC title

• C08L2555/52

  Aggregate, e.g. crushed stone, sand, gravel or cement · CPC title