Methods for reducing odors in asphalt

Patent metadata

Field	Value
Publication number	US-9631093-B2
Application number	US-201213706980-A
Country	US
Kind code	B2
Filing date	Dec 6, 2012
Priority date	Dec 7, 2011
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

Compositions and methods for reducing the foul odors of a hydrocarbonaceous material such as asphalt comprise the addition of an odor reducing amount of a reducing carbohydrate and/or a soluble zinc compound. The reducing carbohydrate may be a monosaccharide, oligosaccharide or polysaccharide, including a starch; and it may be used as a sole odor reducing agent or in combination with soluble zinc compounds and/or other odor reducing compounds.

First claim

What is claimed is:

1. A composition having reduced foul odors, comprising:
at least 95 weight % of a hydrocarbonaceous material; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor mitigating compound being present in said composition in an amount of about 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether,
wherein the foul odors are reduced by 20% to 95% relative to the hydrocarbonaceous material in the absence of the odor mitigating concentrate; and
wherein said odor mitigating compound comprises at least one reducing carbohydrate and a carbonyl compound having a molecular weight greater than about 100 Daltons and a boiling point greater than about 375° F.

2. A composition having reduced foul odors, comprising:
at least 95 weight % of a hydrocarbonaceous material; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor mitigating compound being present in said composition in an amount of about 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether,
wherein the foul odors are reduced by 20% to 95% relative to the hydrocarbonaceous material in the absence of the odor mitigating concentrate; and
wherein said odor mitigating compound comprises at least one reducing carbohydrate that is a monosaccharide.

3. A composition having reduced foul odors, comprising:
at least 95 weight % of a hydrocarbonaceous material; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor mitigating compound being present in said composition in an amount of about 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether,
wherein the foul odors are reduced by 20% to 95% relative to the hydrocarbonaceous material in the absence of the odor mitigating concentrate; and
wherein said odor mitigating compound comprises at least one reducing carbohydrate that is a polysaccharide having a dextrose equivalent of 2 to 70.

4. A composition having reduced foul odors, comprising:
at least 95 weight % of a hydrocarbonaceous material; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor mitigating compound being present in said composition in an amount of about 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether,
wherein the foul odors are reduced by 20% to 95% relative to the hydrocarbonaceous material in the absence of the odor mitigating concentrate; and
wherein said odor mitigating compound comprises at least one reducing carbohydrate that is an oligosaccharide.

5. A composition having reduced foul odors, comprising:
at least 95 weight % of an asphalt; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor litigating compound being present in said composition in an amount of about 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether,
wherein the foul odors are reduced by 20% to 95% relative to the hydrocarbonaceous material in the absence of the odor mitigating concentrate; and
wherein said odor mitigating compound comprise at least one reducing carbohydrate.

6. The composition of claim 5 , wherein the odor mitiagting compound further comprises at least one soluble zinc compound.

7. The composition of claim 6 , wherein the soluble zinc compound is salt of a C8-C20 fatty acid.

8. The material composition of claim 7 , wherein the soluble zinc compound is selected from salts of lauric acid, myristic acid, myristoleic, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and combinations thereof.

9. The composition of claim 6 , wherein the soluble zinc compound is a salt of a C12-C18 fatty acid.

10. The composition of claim 5 , wherein the odor mitigating compound has a molecular weight of less than 10,000 daltons.

11. A composition having reduced foul odors, comprising:
at least 95 weight % of an asphalt; and
an odor mitigating concentrate containing an odor mitigating compound and a carrier vehicle, said odor mitigating compound being present in said composition in an amount of 0.001 weight % to 1.0 weight % and said carrier vehicle being one of vegetable oil, mineral oil, fatty acid alkyl esters, ethoxylates, and polyether;
wherein the foul odors are reduced by 20% to 95% relative to the asphalt in the absence of the odor mitigating concentrate; and
wherein the odor mitigating compound comprises a soluble zinc compound.

12. The composition of claim 11 , wherein the soluble zinc compound is a salt of a C8-C20 fatty acid.

13. The composition of claim 11 , wherein the soluble zinc compound is a salt of a C12-C18 fatty acid.

14. The composition of claim 11 , wherein the soluble zinc compound is selected from salts of lauric acid, myristic acid, myristoleic, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and combinations thereof.

15. The composition of claim 11 , wherein the odor mitigating concentrate further comprises at least one additional odor mitigating compound.

16. The composition of claim 15 , wherein the at least one additional odor mitigating compound comprises a carbonyl compound having a molecular weight greater than about 100 daltons and a boiling point greater than about 375° F.

17. The composition of claim 15 , wherein the at least one additional odor mitigating compound comprises a reducing carbohydrate.

18. The composition of claim 17 , wherein the reducing carbohydrate comprises a monosaccharide.

19. The composition of claim 17 , wherein the reducing carbohydrate comprises a polysaccharide having a dextrose equivalent of 2 to 70.

20. The composition of claim 17 , wherein the reducing carbohydrate comprises an oligosaccharide.

Assignees

• Owens Corning Intellectual Capital Llc

Inventors

• Quinn Robert Edwin

Classifications

• C08K5/098 Primary

  Metal salts of carboxylic acids · CPC title

• C08K3/10

  Metal compounds · CPC title

• C08L95/00 Primary

  Compositions of bituminous materials, e.g. asphalt, tar, pitch · CPC title

• C08L5/00

  Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00 · CPC title

• C08K5/1545

  Six-membered rings · CPC title