Tracers and method of marking liquids
US-9506000-B2 · Nov 29, 2016 · US
Biphenyl benzyl ether marker compounds for liquid hydrocarbons and other fuels and oils
US9005314B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9005314-B2 |
| Application number | US-201113252456-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 4, 2011 |
| Priority date | Oct 14, 2010 |
| Publication date | Apr 14, 2015 |
| Grant date | Apr 14, 2015 |
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- Title
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Abstract
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A compound having formula (I) wherein G represents at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound selected from the group consisting of 4,4′-bis(4-methylphenoxymethyl)-1,1′-biphenyl, 4,4′-bis(2-methylphenoxymethyl)-1,1′-biphenyl and 4,4′-bis(4-t-butylphenoxymethyl)-1,1′-biphenyl. 2. A method for marking a petroleum hydrocarbon, biodiesel fuel or ethanol fuel; said method comprising adding to said petroleum hydrocarbon, biodiesel fuel or ethanol fuel at least one compound having formula (I) wherein G represents at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy and wherein each compound of formula (I) is present at a level from 0.05 ppm to 20 ppm. 3. The method of claim 2 in which each compound of formula (I) is present at a level from 0.05 ppm to 10 ppm. 4. The method of claim 3 in which G represents at least one substituent selected from the group consisting of C 1 -C 6 alkyl or C 1 -C 6 alkoxy. 5. The method of claim 4 in which G represents two or three substituents selected from the group consisting of C 1 -C 4 alkyl. 6. The method of claim 5 in which G represents two or three methyl groups or two or three ethyl groups. 7. The method of claim 3 in which said at least one compound having formula (I) is 4,4′-bis(4-methylphenoxymethyl)-1,1′-biphenyl, 4,4′-bis(2-methylphenoxymethyl)-1,1′-biphenyl or 4,4′-bis(4-t-butylphenoxymethyl)-1,1′-biphenyl.
Assignees
Inventors
Classifications
Flashing oils or marking oils · CPC title
Ethers; Acetals; Ortho-esters; Ortho-carbonates · CPC title
containing more than one ether bond · CPC title
Ethers; Acetals; Ketals; Orthoesters · CPC title
Coloured or dyes-containing lubricant compositions · CPC title
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Frequently asked questions
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- What does patent US9005314B2 cover?
- A compound having formula (I) wherein G represents at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy.
- Who is the assignee on this patent?
- Green George David, Swedo Raymond John, Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C10L1/003. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 14 2015 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).