Patent EA-002741-B1 (EA)
Title: Liquid benz-quinoline derivatives
Inventor: DESAI BHARAT
IPC: C10M171/00
Filed: 1998-05-29
Abstract: 1. A compound represented by formula (I):   wherein R<1> and R<2> are each independently selected from the group consisting of branched alkyl groups containing 7-8 carbon atoms and alkyloxyalkyl groups containing 4 to 24 carbon atoms. 2. The composition according to claim 1, wherein R<1> is a branched alkyl group containing 7 or 8 carbon atoms. 3. The composition according to claim 2, wherein R<2> is a branched alkyl group containing 7 or 8 carbon atoms. 4. The composition according to claim 1, wherein R<2> is a branched alkyl group containing 7 or 8 carbon atoms. 5. The composition according to claim 1, wherein R<1> and R<2> represent the same group. 6. The composition according to claim 5, wherein R<1> and R<2> are both 2-ethylhexyl. 7. The composition according to claim 1, wherein the alkyloxy moiety of said alkyloxyalkyl group contains 1-15 carbon atoms and the alkyl moiety of said alkyloxyalkyl group contains 2-8 carbons. 8. The composition according to claim 7, wherein the alkyloxy moiety contains 6-10 carbon atoms. 9. The composition according to claim 8, wherein the alkyl moiety contains 3 carbon atoms. 10. The composition according to claim 9, wherein said alkyloxyalkyl group is selected from the group consisting of 2-ethylhexyloxypropyl and tridecyloxypropyl. 11. A composition, which comprises a high boiling point organic solvent and a coloring component, wherein the coloring component consists of one or more compounds represented by formula (I):   wherein R<1> and R<2> are each independently selected from the group consisting of branched alkyl groups containing 7-8 carbon atoms and alkyloxyalkyl groups containing 4 to 24 carbon atoms. 12. The composition according to claim 11, wherein said high boiling point organic solvent is selected from the group consisting of aromatic hydrocarbons. 13. The composition according to claim 12, wherein said high boiling point organic solvent is an alkyl naphthalene. 14. The composition according to claim 11, wherein said coloring component is present in an amount that is equivalent to a 10 to 50 wt % solution of Solvent Yellow 43. 15. A lubricant composition for a refrigerant, comprising an oil and a compound of formula (I):   wherein R<1> and R<2> are each independently selected from the group consisting of branched alkyl groups containing 7-8 carbon atoms and alkyloxyalkyl groups containing 4 to 24 carbon atoms. 16. The lubricant according to claim 15, wherein said oil is selected from the group consisting of naphthalenic oils paraffinic oils, alkylated benzene oils, polyalkyl silicate oils, polyglycols, esters, polyether polyols, polyvinyl ethers, polycarbonates, fluorinated silicones, perfluoroethers, aromatic compounds with fluoroalkyloxy or fluoroalkylthio substituents, and mixtures thereof. 17. The lubricant according to claim 16, wherein said lubricant comprises an alkylene glycol or ester thereof. 18. The lubricant according to claim 17, wherein said lubricant comprises polyethylene glycol esters. 19. The lubricant according to claim 16, wherein said dye is contained in an amount of from about 100 to 800 ppm.