THPE ethers
US-9371497-B2 · Jun 21, 2016 · US
Tetrarylmethane ethers as fuel markers
US9926506B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9926506-B2 |
| Application number | US-201515308864-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 21, 2015 |
| Priority date | May 9, 2014 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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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 a compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p }, wherein Ph represents a benzene ring, R 1 , R 3 and R 5 independently are C 1 -C 18 alkyl or C 4 -C 18 heteroalkyl; R 2 , R 4 and R 6 independently are C 1 -C 18 alkyl or C 4 -C 18 heteroalkyl, i, j, m, n, o and p independently are zero, one or two. Each compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p } is present at a level from 0.01 ppm to 20 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 C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p }, wherein Ph represents a benzene ring, R 1 , R 3 and R 5 independently are C 1 -C 8 alkyl or C 4 -C 18 heteroalkyl; R 2 , R 4 and R 6 independently are C 1 -C 8 alkyl or C 4 -C 18 heteroalkyl, i, j, m, n, o and p independently are zero, one or two; provided that (a) at least one of i and j is not zero, or (b) at least one of m and n and at least one of o and p are not zero; wherein each compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p } is present at a level from 0.01 ppm to 20 ppm and wherein all R 1 , R 2 , R 3 , R 4 , R 5 and R 6 substituents collectively have a total of eight to thirty-five carbon atoms. 2. The method of claim 1 in which at least one of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 has at least three carbon atoms. 3. The method of claim/in which R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently are C 1 -C 16 alkyl. 4. The method of claim 3 in which each compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p } is present at a level from 0.01 ppm to 10 ppm. 5. The method of claim 4 in which R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are saturated and acyclic. 6. The method of claim 5 in which j is one or two. 7. The method of claim 1 in which at least one of R 1 , R 2 , R 3 , R 4 , R 5 and R 6 has at least three carbon atoms. 8. The method of claim/in which R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently are C 1 -C 16 alkyl. 9. The method of claim 8 in which each compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p } is present at a level from 0.01 ppm to 10 ppm.
Assignees
Inventors
Classifications
- C10L1/1852Primary
Ethers; Acetals; Ketals; Orthoesters · CPC title
Tracers which serve to track or identify the fuel component or fuel composition · CPC title
Coloured or dyes-containing lubricant compositions · CPC title
- C10L1/003Primary
Marking, e.g. coloration by addition of pigments · CPC title
containing more than one ether bond · CPC title
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- What does patent US9926506B2 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 a compound having formula C{Ph(R 1 ) i (OR 2 ) j } 2 {Ph(R 3 ) m (OR 4 ) n }{Ph(R 5 ) o (OR 6 ) p }, wherein Ph represents a benzene ring, R 1 , R 3 and R 5 independently are C 1 -C 18 alkyl or C 4 -C 18 heteroalkyl; R 2 , R 4 and R 6…
- Who is the assignee on this patent?
- Dow Global Technologies Llc, Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C10L1/1852. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 27 2018 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).