IP Library Granted Patent US 8,580,160
Granted Patent B2
US 8,580,160 · App. 12/977,324 · Granted Nov 12, 2013

Algae oil based dielectric fluid for electrical components

Inventors: Suh Joon Han (Belle Mead, NJ); Dirk B. Zinkweg (Flemington, NJ); Jeffrey M. Cogen (Flemington, NJ); Steve Gluck (Lake Jackson, TX)
Assignee: Dow Global Technologies LLC
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Quick Facts
Patent No.
US 8,580,160
App. No.
12/977,324
Granted
Nov 12, 2013
Kind
B2
Abstract

The disclosure is directed to a dielectric fluid. The dielectric fluid includes an algae oil. The algae oil includes a natural algae antioxidant. The natural algae antioxidant is selected from β-carotene, astaxanthin, tocopherol, polyunsaturated triglycerides, and combinations thereof.

Claims (22)

1. A dielectric fluid comprising:

an algae oil comprising from 0.0001 wt % to 10 wt % of a natural algae antioxidant which is astaxanthin.

2. The dielectric fluid of claim 1 comprising a microbial oil.

3. The dielectric fluid of claim 1 comprising a blend component selected from the group consisting of a vegetable oil, a vegetable seed oil, a mineral oil, a silicon fluid, a synthetic hydrocarbon, a natural ester, a synthetic ester, α-polyolefin liquid, and combinations thereof.

4. The dielectric fluid of claim 3 comprising from 1 to 50 weight percent algae oil and from 50 to 99 weight percent blend component.

5. The dielectric fluid of claim 1 comprising from about 70 wt % to about 100 wt % percent algae oil.

6. The dielectric fluid of claim 1 comprising from 0.1 wt % to 1.5 wt % astaxanthin.

7. The dielectric fluid of claim 1 comprising a synthetic antioxidant.

8. The dielectric fluid of claim 1 comprising a metal deactivator additive.

9. The dielectric fluid of claim 1 comprising a pour point depressant.

10. A device comprising:

an electrical component; and

a dielectric fluid comprising an algae oil in operative communication with the electrical component.

11. The device of claim 10 wherein the electrical component is selected from the group consisting of a transformer, a capacitor, a switching gear, a transmission component, a distribution component, a switch, a regulator, a circuit breaker, an autorecloser, and combinations thereof.

12. The dielectric fluid of claim 1 which is winterized to remove components which solidify at temperatures at or below −12° C.

13. The dielectric fluid of claim 1 which has a dissipation factor of less than 0.5% at 25° C. as measured in accordance with ASTM D 924.

14. The dielectric fluid of claim 1 which has a dissipation factor of less than 0.2% at 25° C. as measured in accordance with ASTM D 924.

15. The dielectric fluid of claim 1 which has a water content of less than 200ppm as measured in accordance with ASTM D 1533.

16. The dielectric fluid of claim 1 which has a viscosity of less than 50 cSt at 40° C.

17. The dielectric fluid of claim 1 which has a viscosity of less than 15 cSt at 100° C.

18. The dielectric fluid of claim 1 comprising 2 wt % or less polymethacrylate.

19. The dielectric fluid of claim 1 comprising greater than 20 wt % unsaturated fatty acids.

Assignments (4)
CHANGE OF NAME Recorded Oct 10, 2013
From: DOW GLOBAL TECHNOLOGIES INC.
To: DOW GLOBAL TECHNOLOGIES LLC
Reel/Frame 031394/0887 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2010
From: ZINKWEG, DIRK B.; GLUCK, STEVE
To: DOW GLOBAL TECHNOLOGIES INC.
Reel/Frame 025565/0716 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2010
From: HAN, SUH JOON; COGEN, JEFFREY M.
To: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC
Reel/Frame 025566/0506 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2010
From: UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC
To: DOW GLOBAL TECHNOLOGIES INC.
Reel/Frame 025566/0702 →
Continuity (2)
Provisional Application 61290315 · Dec 28, 2009
Related Publication 20110188202A1 · Aug 4, 2011