Patent EA-004426-B1 (EA)
Title: Aromatic esters for marking or tagging organic products
Inventor: DESAI BHARAT
IPC: C10L1/18
Filed: 2000-06-30
Abstract: 1. A concentrate solution comprising an organic solvent and 5-50% by weight of at least one compound of formula I: wherein Ar<1> and Ar<2> each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; and R<3> represents a hydrogen atom, a straight or branched chain alkyl group having 1 to 12 carbon atoms, a straight or branched chain alkoxy group having 1 to 12 carbon atoms, a hydroxyl group, or a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; and Z represents a hydrogen atom or a group of atoms that combine with Ar<2> or R<3> to form a lactone ring. 2. A solution according to claim 1; wherein said organic solvent is selected from the group consisting of an aromatic solvent and an aprotic solvent. 3. A solution according to claim 2, wherein said organic solvent is an aromatic solvent. 4. A solution according to claim 3, wherein said aromatic solvent is selected from the group consisting of xylene, naphthalenes, benzyl alcohol and phenolglycol ether. 5. A solution according to claim 2, wherein said compound is: wherein R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; X<2> - X<13> each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a cyano group, a carboxylic acid group, and a carboxylic acid ester group, except that X<7> and X<11> are not hydrogen. 6. A solution according to claim 2, wherein said compound is: 7. A solution according to claim 5, wherein said aromatic solvent is selected from the group consisting of alkyl benzenes, aromatic alcohols and aromatic substituted alkanols. 8. A solution according to claim 5, wherein said aromatic solvent is selected from the group consisting of xylene, napthalenes, benzyl alcohol and phenolglycolether. 9. A solution according to claim 5, wherein said aprotic solvent is selected from the group consisting of formamide, N,N dimethylformamide, N,N-dimethyl acetamide, 1-methyl pyrrolidinone, n-octyl pyrrolidinone and 1-dodecyl pyrrolidinone. 10. A solution according to claim 5, wherein said organic solvent is an aromatic solvent. 11. A solution according to claim 10, wherein said aromatic solvent is selected from the group consisting of xylene, naphthalenes, benzyl alcohol and phenolglycol ether. 12. A solution comprising aromatic and aprotic solvents in a ratio of aromatic: aprotic of 25:75 to 75:25 parts by weight and 5 - 50% by weight of at least one compound represented by a formula: wherein R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; X<2> -X<13> each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a cyano group, a carboxylic acid group, and a carboxylic acid ester group, except that X<7> and X<1> are not hydrogen. 13. A solution according to claim 12, wherein said aromatic solvent is selected from the group consisting of alkyl benzenes, aromatic alcohols and aromatic substituted alkanols. 14. A solution according to claim 12; wherein said aromatic solvent is selected from the group consisting of xylene, napthalenes, benzyl alcohol and phenyl phenoglycolether. 15. A solution according to claim 12; wherein said aprotic solvent is selected from the group consisting of formamide, N,N dimethylformamide, N,N-dimethyl acetamide, 1-methyl pyrrolidinone, n-octyl pyrrolidinone and 1-dodecyl pyrrolidinone. 16. A solution comprising: an aromatic solvent and n-octyl pyrrolidinone in a ratio of organic n-octyl pyrrolidinone of 25:75 to 75:25 parts by weight; and at least one compound represented by a formula: wherein R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; X<2> - X<13> each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a cyano group, a carboxylic acid group, and a carboxylic acid ester group, except that X<7> and X<11> are not hydrogen. 17. A solution comprising: an organic solvent having a mixture of an aromatic solvent and n-octyl pyrrolidinone in a ratio of aromatic n-octyl pyrrolidinone of 25:75 to 75:25 parts by weight; and a compound represent by a formula: 18. A solution comprising a petroleum product and at least one compound represented by a formula: wherein Ar<1> and Ar<2> each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; and R<3> represents a hydrogen atom, a straight or branched chain alkyl group having 1 to 12 carbon atoms, a straight or branched chain alkoxy group having 1 to 12 carbon atoms, a hydroxyl group, or a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; and Z represents a hydrogen atom or H a group of atoms that combine with Ar<2> or R<3> to form a lactone ring. 19. A solution according to claim 18, wherein said compound comprises about 0.05 ppm to 50 ppm of said solution. 20. A solution according to claim 18, wherein said petroleum product is a hydrocarbon selected from the group consisting of fuels, oils or greases. 21. A solution according to claim 18, wherein said petroleum product is selected from the group consisting of gasoline, diesel fuel, fuel oil, kerosene and lamp oil. 22. A solution comprising a petroleum product and at least one compound represented by a formula: wherein R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; X<2> - X<13>, each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a cyano group, a carboxylic acid group, and a carboxylic acid ester group, except that X<7> and X<11> are not hydrogen. 23. A solution according to claim 22, wherein said compound comprises about 0.05 ppm to 50 ppm of said solution. 24. A solution according to claim 22, wherein said petroleum product is a hydrocarbon selected from the group consisting of fuels, oils or greases. 25. A solution according to claim 22, wherein said petroleum product is selected from the group consisting of gasoline, diesel fuel, fuel oil, kerosene and lamp oil. 26. A solution according to claim 22, wherein said compound is represented by the formula: 27. A solution according to claim 26; wherein said petroleum product is selected from the group consisting of gasoline, diesel fuel, fuel oil, kerosene and lamp oil. 28. A solution comprising a diesel fuel and at least one compound represented by a formula: wherein Ar<1> and Ar<2> each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; and R<3> represents a hydrogen atom, a straight or branched chain alkyl group having 1 to 12 carbon atoms, a straight or branched chain alkoxy group having 1 to 12 carbon atoms, a hydroxyl group, or a substituted or unsubstituted phenyl group or a substituted or unsubstituted naphthyl group; and Z represents a hydrogen atom or a group of atoms that combine with Ar<2> or R<3> to form a lactone ring. 29. A solution according to claim 28, wherein said compound comprises about 0.05 ppm to 50 ppm of said solution. 30. A solution according to claim 29, wherein said compound represented by the formula: wherein R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a hydrogen atom or a group of the formula C(O)R<4> where R<4> is a hydrogen atom or a straight or branched chain alkyl group having 1 to 22 carbon atoms; X<2>- X<13> each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxyl group, a cyano group, a carboxylic acid group, and a carboxylic acid ester group, and except that X<7> and X<11> are not hydrogen. 31. A solution according to claim 30, wherein said compound is represented by the formula: 32. A solution comprising a petroleum product, a compound represented by the formula: wherein Ar<1> and Ar<2> each independently represent a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group; R<1> represents a straight or branched chain alkyl group having 1 to 22 carbon atoms; R<2> represents a