Non-oleic triglyceride based, low viscosity, high flash point dielectric fluids

US9607730B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9607730-B2
Application numberUS-201314432929-A
CountryUS
Kind codeB2
Filing dateSep 17, 2013
Priority dateOct 18, 2012
Publication dateMar 28, 2017
Grant dateMar 28, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A vegetable-based dielectric fluid comprising in weight percent of triglycerides based on the weight of the fluid: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; and at least one of: B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids. The dielectric fluid is a useful transformer oil.

First claim

Opening claim text (preview).

What is claimed is: 1. A dielectric fluid composition of triglycerides comprising in weight percent based on the weight of the composition: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; and at least one of: B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids and wherein the composition has a viscosity of equal to or less than (<) 33 cP at 40° C. and equal to or less than (<) 120 cP at 10° C.; a flash point of equal to or greater than (>) 260° C.; and a melting point of equal to or less than (<) −15° C. 2. The composition of claim 1 comprising at least two of the fatty acids of (B), (C) and (D). 3. The composition of claim 1 comprising all three of the fatty acids of (B), (C) and (D). 4. A dielectric fluid composition of triglycerides consisting essentially of, in weight percent based on the weight of the composition: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; and at least one of: B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids and wherein the composition has a viscosity of equal to or less than (<) 33 cP at 40° C. and equal to or less than (<) 120 cP at 10° C.; a flash point of equal to or greater than (>) 260° C.; and a melting point of equal to or less than (<) −15° C. 5. An electrical device comprising a dielectric fluid in which the dielectric fluid is a composition of triglycerides comprising in weight percent based upon the weight of the composition: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids and wherein the composition has a viscosity of equal to or less than (<) 33 cP at 40° C. and equal to or less than (<) 120 cP at 10° C.; a flash point of equal to or greater than (>) 260° C.; and a melting point of equal to or less than (<) −15° C. 6. The electrical device of claim 5 in which the dielectric fluid consists essentially of a triglyceride of C14:1 and/or C16:1 fatty acid. 7. The electrical device of claim 5 in which the dielectric fluid consists essentially of triglycerides of: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids. 8. The electrical device of claim 5 in which the dielectric fluid comprises 100 wt % of the at least one of C14:1 or C16:1 fatty acids.

Assignees

Inventors

Classifications

  • Oleic acid · CPC title

  • Food ingredients · CPC title

  • Other edible oils or fats, e.g. shortenings or cooking oils (preservation of other edible oils A23B20/30) · CPC title

  • Food compositions, function of food ingredients or processes for food or foodstuffs · CPC title

  • H01B3/20Primary

    liquids, e.g. oils (silicone oils H01B3/46) · CPC title

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Frequently asked questions

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What does patent US9607730B2 cover?
A vegetable-based dielectric fluid comprising in weight percent of triglycerides based on the weight of the fluid: A. Greater than 0 to 100% of at least one of C14:1 or C16:1 fatty acids; and at least one of: B. No more than (≦) 10% of C18:1 fatty acids; C. No more than (≦) 12% of one or more polyunsaturated fatty acids; and D. No more than (≦) 7% of one or more saturated fatty acids. The diele…
Who is the assignee on this patent?
Dow Global Technologies Llc
What technology area does this patent fall under?
Primary CPC classification H01B3/20. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 28 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).