Tracers and method of marking liquids
US-9506000-B2 · Nov 29, 2016 · US
Distillable fuel markers
US9688930B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9688930-B2 |
| Application number | US-201314441202-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 5, 2013 |
| Priority date | Nov 20, 2012 |
| Publication date | Jun 27, 2017 |
| Grant date | Jun 27, 2017 |
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- Title
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Abstract
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A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel by adding to the petroleum hydrocarbon or liquid biologically derived fuel at least one compound having formula Ar(R 2 ) m (OR 1 ) n , wherein Ar is an aromatic ring system having from six to twenty carbon atoms, R 1 is C 1 -C 12 alkyl or C 2 -C 12 alkenyl, R 2 is C 1 -C 12 alkyl or C 3 -C 12 alkenyl, m is an integer from zero to five and n is an integer from one to three; wherein each compound of formula Ar(R 2 ) m (OR 1 ) n is present at a level from 0.01 ppm to 100 ppm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel; said method comprising adding to said petroleum hydrocarbon or liquid biologically derived fuel at least one compound having formula (I) wherein R 1 is C 1 -C 12 alkyl or C 2 -C 12 alkenyl, R 2 is C 1 -C 12 alkyl or C 3 -C 12 alkenyl, m is an integer from zero to five and n is an integer from one to three; wherein each compound of formula (I) is present at a level from 0.01 ppm to 100 ppm. 2. The method of claim 1 in which m is zero to two. 3. The method of claim 2 in which R 2 is C 1 -C 6 alkyl. 4. The method of claim 3 in which n is one. 5. The method of claim 4 in which m is zero or one, and R 2 is C 1 -C 4 alkyl. 6. The method of claim 5 in which each compound of formula (I) is present at a level from 0.05 ppm to 50 ppm. 7. The method of claim 3 in which n is two or three, R 1 is methyl, R 2 is methyl and m is zero or one. 8. The method of claim 7 in which R 1 is methyl and m is zero. 9. The method of claim 8 in which each compound of formula (I) is present at a level from 0.05 ppm to 50 ppm. 10. The method of claim 1 in which m is zero, n is one and R 1 is C 4 -C 12 alkyl or C 4 -C 12 alkenyl. 11. The method of claim 10 in which R 1 is C 4 -C 12 alkyl. 12. The method of claim 11 in which R 1 is C 4 -C 10 alkyl.
Assignees
Inventors
Classifications
- C10L1/003Primary
Marking, e.g. coloration by addition of pigments · CPC title
Use of additives to fuels or fires for particular purposes (additives for liquid carbonaceous fuels characterised by their chemical nature C10L1/10; using binders for briquetting solid fuels C10L5/10; using additives to improve the combustion of solid fuels C10L9/10) · CPC title
Absorbents, e.g. in the absence of an actual absorbent column or scavenger · CPC title
Ethers; Acetals; Ketals; Orthoesters · CPC title
- C10L1/18Primary
containing oxygen · CPC title
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- What does patent US9688930B2 cover?
- A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel by adding to the petroleum hydrocarbon or liquid biologically derived fuel at least one compound having formula Ar(R 2 ) m (OR 1 ) n , wherein Ar is an aromatic ring system having from six to twenty carbon atoms, R 1 is C 1 -C 12 alkyl or C 2 -C 12 alkenyl, R 2 is C 1 -C 12 alkyl or C 3 -C 12 alkenyl, m is …
- Who is the assignee on this patent?
- Angus Chemical, 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 Jun 27 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).