Polymerized oils and methods of manufacturing the same

Patent metadata

Field	Value
Publication number	US-11787945-B2
Application number	US-201816227948-A
Country	US
Kind code	B2
Filing date	Dec 20, 2018
Priority date	Feb 27, 2015
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

Described herein is a polymerized biorenewable, petroleum based, previously modified, or functionalized oil, comprising a polymeric distribution having about 2 to about 80 wt % oligomer content, a polydispersity index ranging from about 1.0 to about 5.0, and sulfur content ranging from 0.001 wt % to about 8 wt %. Methods of manufacturing the polymerized oil as well as its incorporation into asphalt paving, roofing, and coating applications are also described.

First claim

The invention claimed is:

1. A method of polymerizing a petroleum-based oil, comprising:
heating a petroleum-based oil to at least 100° C.;
adding a sulfur-containing compound to the heated oil; and
allowing the sulfur-containing compound to react with the oil to produce a polymerized oil crosslinked with the sulfur-containing compound, the oil comprising
a polymeric distribution having about 2 to about 80 wt % oligomer content, and
a sulfur content ranging from about 0.001 wt % to about 8 wt %

wherein a weight ratio of the polymerized oil to a combination of the petroleum-based oil and the sulfur content of the polymerized oil is 1:1.

2. The method of claim 1 , further comprising passing a gas-containing stream through the reaction mixture during the reacting of the sulfur-containing compound with the oil.

3. The method of claim 2 , wherein the gas-containing stream is selected from the group consisting of nitrogen, and inert gas.

4. The method of claim 1 , wherein during the heating of the oil, the oil is heated to about 130° C. to about 250° C.

5. The method of claim 1 , wherein the sulfur-containing compound is added in a solid form, a molten form, or a combination thereof.

6. The method of claim 1 , wherein the sulfur-containing compound is a reduced form of sulfur.

7. The method of claim 1 , wherein the sulfur-containing compound is elemental sulfur.

8. The method of claim 1 , further comprising adding an accelerator after adding the sulfur-containing compound to the heated oil.

9. The method of claim 1 , wherein the oligomer content ranges from about 15 to about 60 wt %.

10. The method of claim 1 , wherein the sulfur content is less than about 6 wt %.

11. The method of claim 1 , wherein the sulfur content is less than about 2 wt %.

12. The method of claim 1 , wherein the polymerized oil has a flash point ranging from about 100° C to about 400° C.

13. The method of claim 1 , wherein the polymerized oil has a flash point ranging from about 245° C. to about 275° C.

14. The method of claim 1 , wherein the polymerized oil is a liquid at 40° C.

15. A modified asphalt comprising the polymerized oil made in accordance to claim 1 .

16. A modified asphalt for use in compositions for paving roads comprising the polymerized oil made in accordance to claim 1 .

17. A modified asphalt for use in compositions for roofing materials comprising the polymerized oil made in accordance to claim 1 .

18. A rejuvenator for use in asphalt comprising polymerized oil made according to claim 1 .

19. A performance grade modifier for use in asphalt comprising polymerized oil made according to claim 1 .

20. A compatibilizer and swelling agent for use in asphalt comprising polymerized oil made according to claim 1 .

21. A warm mix additive for use in asphalt comprising polymerized oil made according to claim 1 .

Assignees

• Cargill Inc

Inventors

• Kurth Todd L
• Nivens Scott
• Stevermer Christopher Patrick
• Tabatabaee Hassan Ali

Classifications

• C08L91/00 Primary

  Compositions of oils, fats or waxes; Compositions of derivatives thereof · CPC title

• C08H3/00 Primary

  Vulcanised oils, e.g. factice · CPC title

• C08L91/02

  Vulcanised oils, e.g. factice · CPC title

• C08L95/00

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

• C08L95/005

  Aqueous compositions, e.g. emulsions · CPC title