Preparation and uses of bio-adhesives
View Patent ↗The present application relates generally to bio-adhesive components isolated from bio-oil prepared from animal waste, methods of preparation of the bio-adhesive components and uses thereof. Such uses include, but are not limited to, asphalt bio-binders, bio-adhesion promoters, asphalt bio-rejuvenators, asphalt bio-extenders, bio-asphalt as well as uses in roofing, soil stabilization, crack and joint sealing and flooring adhesives.
1. A bio-adhesive composition comprising a heavy liquid fraction and a bio-residue, wherein the composition has a viscosity of about 0.5 cP at 135° C., wherein said heavy liquid fraction and bio-residue are isolated from bio-oil produced from animal waste and wherein said bio-adhesive composition does not contain a light liquid fraction from said bio-oil.
2. The bio-adhesive composition of claim 1 , wherein the composition is free of compounds that have a boiling point at 3 mm Hg of less than 60° C.
3. The bio-adhesive composition of claim 1 , wherein the animal waste comprises beef manure, dairy manure, swine manure, sheep manure, poultry manure or combinations thereof.
4. The bio-adhesive composition of claim 3 , wherein the animal waste comprises swine manure comprising at least about 30% solid manure.
5. A bio-adhesive composition comprising a heavy liquid fraction having a viscosity of between about 0.1 cP and about 0.5 cP at 135° C., wherein said heavy liquid fraction is isolated from bio-oil produced from animal waste and said bio-adhesive composition does not contain a light liquid fraction from said bio-oil.
6. The bio-adhesive composition of claim 5 , wherein the composition is free of compounds that have a boiling point at 3 mm Hg of less than 60° C.
7. The bio-adhesive composition of claim 5 , wherein the bio-adhesive composition comprises:
(a) a heavy liquid fraction comprising at least about 5% by weight of amide-containing compounds, or
(b) a heavy liquid fraction comprising up to about 5% by weight of amide-containing compounds.
8. The bio-adhesive composition of claim 7 , wherein the bio-adhesive composition comprises a heavy liquid fraction comprising at least about 5% by weight of amide-containing compounds.
9. The bio-adhesive composition of claim 8 , wherein the bio-adhesive composition comprises a heavy liquid fraction comprising at least about 10% by weight of amide-containing compounds.
10. The bio-adhesive composition of claim 9 , wherein the bio-adhesive composition comprises a heavy liquid fraction comprising at least 15% by weight of amide-containing compounds.
11. The bio-adhesive composition of claim 9 , wherein the bio-adhesive composition comprises a heavy liquid fraction comprising 10-20% by weight of amide-containing compounds.
12. The bio-adhesive composition of claim 11 , wherein the composition has a viscosity of about 0.1 cP.
13. The bio-adhesive composition of claim 7 , wherein the composition has a viscosity of about 0.1 cP.
14. The bio-adhesive composition of claim 5 , wherein the animal waste comprises beef manure, dairy manure, swine manure, sheep manure, poultry manure or combinations thereof.
15. The bio-adhesive composition of claim 14 , wherein the animal waste comprises swine manure.
16. The bio-adhesive composition of claim 15 , wherein the swine manure comprises at least about 30% solid manure.
17. A bio-adhesive composition comprising a bio-residue having a viscosity of at least about 0.4 cP at 135° C., wherein said bio-residue is isolated from bio-oil produced from animal waste, and wherein said bio-adhesive composition does not contain a light liquid fraction from said bio-oil.
18. The bio-adhesive composition of claim 17 , wherein the composition is free of compounds that have a boiling point at 3 mm Hg of less than 60° C.
19. The bio-adhesive composition of claim 17 , wherein the animal waste comprises beef manure, dairy manure, swine manure, sheep manure, poultry manure or combinations thereof.
20. The bio-adhesive composition of claim 19 , wherein the animal waste comprises swine manure comprising at least about 30% solid manure.