RU2007139717A - LUBRICANT OIL COMPOSITION WITH REDUCED PHOSPHORIA LEVELS - Google Patents

LUBRICANT OIL COMPOSITION WITH REDUCED PHOSPHORIA LEVELS Download PDF

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RU2007139717A
RU2007139717A RU2007139717/04A RU2007139717A RU2007139717A RU 2007139717 A RU2007139717 A RU 2007139717A RU 2007139717/04 A RU2007139717/04 A RU 2007139717/04A RU 2007139717 A RU2007139717 A RU 2007139717A RU 2007139717 A RU2007139717 A RU 2007139717A
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group
composition
oil
molybdenum
equal
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RU2007139717/04A
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Винсент Джеймс ГАТТО (US)
Винсент Джеймс ГАТТО
Уилльям Эмил МЕЛЕ (US)
Уилльям Эмил МЕЛЕ
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Альбемарл Корпорейшн (Us)
Альбемарл Корпорейшн
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    • C10M141/00Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
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    • C10M141/06Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic nitrogen-containing compound
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Abstract

1. Моторное масло с низким содержанием фосфора, содержащее: ! 4,4′-метиленбис(2,6-ди-трет-бутилфенол) и ! алкилированный дифениламин; ! в котором ! весовое отношение 4,4′-метиленбис(2,6-ди-трет-бутилфенола) к упомянутому алкилированному дифениламину больше или равно приблизительно 0,5; и ! общее количество отложений, образуемое упомянутым моторным маслом, меньше или равно 35 мг, согласно измерению по методике ASTM D7097. ! 2. Моторное масло по п.1, дополнительно содержащее диалкилдитиофосфат цинка; в котором упомянутое моторное масло содержит приблизительно 600 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка. ! 3. Моторное масло по п.2, дополнительно содержащее растворимое в масле органическое соединение молибдена. ! 4. Композиция, содержащая: ! (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров; ! (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол); ! (c) алкилированный дифениламин; ! (d) по меньшей мере, один компонент, выбранный из группы, состоящей из диспергирующих и моющих присадок; и ! (e) диалкилдитиофосфат цинка; ! в которой ! упомянутая композиция содержит приблизительно 600 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка; и ! весовое отношение (b) к (c) больше или равно приблизительно 0,5. ! 5. Композиция по п.4, дополнительно содержащая ! (f) растворимое в масле органическое соединение молибдена. ! 6. Композиция по п.5, в которой упомянутое растворимое в масле органическое соединение молибдена содержит серу и не содержит фосфор. ! 7. Композиция по п.6, в которой весовое отн�1. Low phosphorus engine oil containing:! 4,4′-methylenebis (2,6-di-tert-butylphenol) and! alkylated diphenylamine; ! in which ! the weight ratio of 4,4′-methylenebis (2,6-di-tert-butylphenol) to said alkylated diphenylamine is greater than or equal to about 0.5; and! the total amount of deposits formed by said engine oil is less than or equal to 35 mg, as measured by ASTM D7097. ! 2. The engine oil according to claim 1, additionally containing zinc dialkyldithiophosphate; wherein said engine oil contains about 600 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate. ! 3. The engine oil of claim 2, further comprising an oil soluble organic molybdenum compound. ! 4. A composition comprising:! (a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; ! (b) 4,4′-methylenebis (2,6-di-tert-butylphenol); ! (c) alkylated diphenylamine; ! (d) at least one component selected from the group consisting of dispersing and washing additives; and! (e) zinc dialkyldithiophosphate; ! wherein ! said composition comprising about 600 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate; and! the weight ratio of (b) to (c) is greater than or equal to about 0.5. ! 5. The composition according to claim 4, additionally containing! (f) an oil soluble organic compound of molybdenum. ! 6. The composition according to claim 5, in which the aforementioned oil-soluble organic compound of molybdenum contains sulfur and does not contain phosphorus. ! 7. The composition according to claim 6, in which the relative weight

Claims (44)

1. Моторное масло с низким содержанием фосфора, содержащее:1. Low phosphorus engine oil containing: 4,4′-метиленбис(2,6-ди-трет-бутилфенол) и4,4′-methylenebis (2,6-di- tert- butylphenol) and алкилированный дифениламин;alkylated diphenylamine; в которомwherein весовое отношение 4,4′-метиленбис(2,6-ди-трет-бутилфенола) к упомянутому алкилированному дифениламину больше или равно приблизительно 0,5; иthe weight ratio of 4,4′-methylenebis (2,6-di- tert- butylphenol) to said alkylated diphenylamine is greater than or equal to about 0.5; and общее количество отложений, образуемое упомянутым моторным маслом, меньше или равно 35 мг, согласно измерению по методике ASTM D7097.the total amount of deposits formed by said motor oil is less than or equal to 35 mg, as measured by ASTM D7097. 2. Моторное масло по п.1, дополнительно содержащее диалкилдитиофосфат цинка; в котором упомянутое моторное масло содержит приблизительно 600 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка.2. The engine oil according to claim 1, additionally containing zinc dialkyldithiophosphate; wherein said engine oil contains about 600 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate. 3. Моторное масло по п.2, дополнительно содержащее растворимое в масле органическое соединение молибдена.3. The engine oil of claim 2, further comprising an oil-soluble organic molybdenum compound. 4. Композиция, содержащая:4. A composition comprising: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол);(b) 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) алкилированный дифениламин;(c) alkylated diphenylamine; (d) по меньшей мере, один компонент, выбранный из группы, состоящей из диспергирующих и моющих присадок; и(d) at least one component selected from the group consisting of dispersing and washing additives; and (e) диалкилдитиофосфат цинка;(e) zinc dialkyldithiophosphate; в которойwherein упомянутая композиция содержит приблизительно 600 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка; иsaid composition contains about 600 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate; and весовое отношение (b) к (c) больше или равно приблизительно 0,5.the weight ratio of (b) to (c) is greater than or equal to about 0.5. 5. Композиция по п.4, дополнительно содержащая5. The composition according to claim 4, additionally containing (f) растворимое в масле органическое соединение молибдена.(f) an oil soluble organic compound of molybdenum. 6. Композиция по п.5, в которой упомянутое растворимое в масле органическое соединение молибдена содержит серу и не содержит фосфор.6. The composition according to claim 5, in which the aforementioned oil-soluble organic compound of molybdenum contains sulfur and does not contain phosphorus. 7. Композиция по п.6, в которой весовое отношение фосфора к молибдену больше или равно 1,0.7. The composition according to claim 6, in which the weight ratio of phosphorus to molybdenum is greater than or equal to 1.0. 8. Композиция по п.6, в которой весовое отношение фосфора к молибдену больше 0,0 и меньше 1,0.8. The composition according to claim 6, in which the weight ratio of phosphorus to molybdenum is more than 0.0 and less than 1.0. 9. Композиция по п.6, в которой весовое отношение фосфора к молибдену меньше или равно 1,0.9. The composition according to claim 6, in which the weight ratio of phosphorus to molybdenum is less than or equal to 1.0. 10. Композиция по п.4, дополнительно содержащая:10. The composition according to claim 4, additionally containing: (g) экранированный фенольный антиоксидант при условии, что упомянутый экранированный фенольный антиоксидант не является 4,4′-метиленбис(2,6-ди-трет-бутилфенолом).(g) a shielded phenolic antioxidant, provided that said shielded phenolic antioxidant is not 4,4′-methylenebis (2,6-di- tert- butylphenol). 11. Композиция по п.10, в которой суммарное количество (b), (c) и (g) меньше или равно приблизительно 1,5 мас.% от упомянутой композиции.11. The composition of claim 10, in which the total amount of (b), (c) and (g) is less than or equal to about 1.5 wt.% From the said composition. 12. Композиция по п.6, дополнительно содержащая12. The composition according to claim 6, additionally containing (g) экранированный фенольный антиоксидант при условии, что упомянутый экранированный фенольный антиоксидант не является 4,4′-метиленбис(2,6-ди-трет-бутилфенолом).(g) a shielded phenolic antioxidant, provided that said shielded phenolic antioxidant is not 4,4′-methylenebis (2,6-di- tert- butylphenol). 13. Композиция по п.12, в которой суммарное количество (b), (c) и (g) меньше или равно приблизительно 1,5 мас.% от упомянутой композиции.13. The composition according to item 12, in which the total amount of (b), (c) and (g) is less than or equal to about 1.5 wt.% From the said composition. 14. Композиция по п.4, в которой упомянутое масло смазочной вязкости содержит приблизительно до 15 мас.% масла-компонента группы I.14. The composition according to claim 4, in which said lubricating oil oil contains up to about 15 wt.% The oil component of group I. 15. Композиция, содержащая:15. A composition comprising: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол);(b) 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) алкилированный дифениламин;(c) alkylated diphenylamine; (e) диалкилдитиофосфат цинка; и(e) zinc dialkyldithiophosphate; and (f) растворимое в масле органическое соединение молибдена;(f) an oil soluble organic molybdenum compound; в которой:wherein: весовое отношение (b) к (c) больше или равно приблизительно 0,5; иthe weight ratio of (b) to (c) is greater than or equal to about 0.5; and общее количество отложений, образуемое упомянутой композицией, меньше или равно приблизительно 35 мг, согласно измерению по методике ASTM D7097.the total amount of deposits formed by said composition is less than or equal to about 35 mg, as measured by ASTM D7097. 16. Композиция по п.15, в которой упомянутое растворимое в масле органическое соединение молибдена содержит серу и не содержит фосфора.16. The composition of claim 15, wherein said oil-soluble organic molybdenum compound contains sulfur and does not contain phosphorus. 17. Композиция по п.15, в которой весовое отношение фосфора к молибдену больше или равно 1,0.17. The composition according to clause 15, in which the weight ratio of phosphorus to molybdenum is greater than or equal to 1.0. 18. Композиция по п.15, в которой весовое отношение фосфора к молибдену больше 0,0 и меньше 1,0.18. The composition according to clause 15, in which the weight ratio of phosphorus to molybdenum is more than 0.0 and less than 1.0. 19. Композиция по п.15, в которой весовое отношение фосфора к молибдену меньше или равно 1,0.19. The composition according to clause 15, in which the weight ratio of phosphorus to molybdenum is less than or equal to 1.0. 20. Композиция по п.15, дополнительно содержащая:20. The composition according to clause 15, additionally containing: (d) по меньшей мере, один компонент, выбранный из группы, состоящей из диспергирующих и моющих присадок.(d) at least one component selected from the group consisting of dispersing and washing additives. 21. Композиция по п.15, дополнительно содержащая:21. The composition of claim 15, further comprising: (g) экранированный фенольный антиоксидант при условии, что упомянутый экранированный фенольный антиоксидант не является 4,4′-метиленбис(2,6-ди-трет-бутилфенолом).(g) a shielded phenolic antioxidant, provided that said shielded phenolic antioxidant is not 4,4′-methylenebis (2,6-di- tert- butylphenol). 22. Композиция по п.21, в которой суммарное количество (b), (c) и (g) меньше или равно приблизительно 1,5 мас.% от упомянутой композиции.22. The composition according to item 21, in which the total amount of (b), (c) and (g) is less than or equal to about 1.5 wt.% From the said composition. 23. Композиция по п.21, в которой общее количество отложений, образуемое упомянутой композицией, меньше или равно приблизительно 25 мг, согласно измерению по методике ASTM D7097.23. The composition according to item 21, in which the total amount of deposits formed by said composition is less than or equal to about 25 mg, as measured by ASTM D7097. 24. Композиция по п.20, дополнительно содержащая24. The composition according to claim 20, additionally containing (g) экранированный фенольный антиоксидант при условии, что упомянутый фенольный антиоксидант не является 4,4′-метиленбис(2,6-ди-трет-бутилфенолом).(g) a shielded phenolic antioxidant, provided that said phenolic antioxidant is not 4,4′-methylenebis (2,6-di- tert- butylphenol). 25. Композиция по п.24, в которой суммарное количество (b), (c) и (g) меньше или равно приблизительно 1,5 мас.% от упомянутой композиции.25. The composition according to paragraph 24, in which the total amount of (b), (c) and (g) is less than or equal to approximately 1.5 wt.% From the said composition. 26. Композиция по п.24, в которой общее количество отложений, образуемое упомянутой композицией, меньше или равно приблизительно 25 мг, согласно измерению ASTM D7097.26. The composition of claim 24, wherein the total amount of deposits formed by said composition is less than or equal to about 25 mg, as measured by ASTM D7097. 27. Композиция, содержащая:27. A composition comprising: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол); и(b) 4,4′-methylenebis (2,6-di- tert- butylphenol); and (c) алкилированный дифениламин;(c) alkylated diphenylamine; (d) по меньшей мере, один компонент, выбранный из группы, состоящей из диспергирующих и моющих присадок;(d) at least one component selected from the group consisting of dispersing and washing additives; (e) диалкилдитиофосфат цинка;(e) zinc dialkyldithiophosphate; (f) растворимое в масле органическое соединение молибдена; и(f) an oil soluble organic molybdenum compound; and (g) экранированный фенольный антиоксидант при условии, что упомянутый экранированный фенольный антиоксидант не является 4,4′-метиленбис(2,6-ди-трет-бутилфенолом);(g) a shielded phenolic antioxidant, provided that said shielded phenolic antioxidant is not 4,4′-methylenebis (2,6-di- tert- butylphenol); в которой упомянутая композиция содержит:wherein said composition comprises: приблизительно 600 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка; иapproximately 600 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate; and приблизительно 50-400 ч./млн молибдена, происходящего из упомянутого, растворимого в масле органического соединения молибдена.approximately 50-400 ppm of molybdenum derived from said oil-soluble organic molybdenum compound. 28. Композиция по п.27, в которой упомянутое растворимое в масле органическое соединение молибдена содержит серу и не содержит фосфор.28. The composition of claim 27, wherein said oil soluble organic molybdenum compound contains sulfur and does not contain phosphorus. 29. Композиция по п.27, в которой весовое отношение фосфора к молибдену больше или равно 1,0.29. The composition according to item 27, in which the weight ratio of phosphorus to molybdenum is greater than or equal to 1.0. 30. Композиция по п.27, в которой весовое отношение фосфора к молибдену больше 0,0 и меньше 1,0.30. The composition according to item 27, in which the weight ratio of phosphorus to molybdenum is more than 0.0 and less than 1.0. 31. Композиция по п.27, в которой весовое отношение фосфора к молибдену меньше или равно 1,0.31. The composition according to item 27, in which the weight ratio of phosphorus to molybdenum is less than or equal to 1.0. 32. Композиция по п.27, в которой упомянутая композиция содержит приблизительно 550 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка.32. The composition of claim 27, wherein said composition comprises about 550 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate. 33. Композиция по п.27, в которой упомянутая композиция содержит приблизительно 100-250 ч./млн молибдена, происходящего из упомянутого, растворимого в масле органического соединения молибдена.33. The composition of claim 27, wherein said composition contains about 100-250 ppm of molybdenum derived from said oil-soluble organic molybdenum compound. 34. Композиция по п.27, в которой упомянутая композиция содержит приблизительно 500 ч./млн или меньше фосфора, происходящего из упомянутого диалкилдитиофосфата цинка.34. The composition of claim 27, wherein said composition contains about 500 ppm or less of phosphorus derived from said zinc dialkyldithiophosphate. 35. Композиция по п.27, в которой упомянутая композиция содержит приблизительно 250-400 ч./млн молибдена, происходящего из упомянутого, растворимого в масле органического соединения молибдена.35. The composition of claim 27, wherein said composition comprises about 250-400 ppm of molybdenum derived from said oil-soluble organic molybdenum compound. 36. Моторное масло, содержащее:36. Motor oil containing: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол);(b) 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) от 0,2 до 1,0 мас.% алкилированного дифениламина;(c) from 0.2 to 1.0 wt.% alkylated diphenylamine; (d) от 1,0 до 12,0 мас.%, по меньшей мере, одного соединения, выбранного из группы, состоящей из диспергирующих и моющих присадок;(d) from 1.0 to 12.0 wt.%, at least one compound selected from the group consisting of dispersing and washing additives; (e) от 200 до 600 ч./млн фосфора, происходящего из диалкилдитиофосфата цинка; и(e) 200 to 600 ppm of phosphorus derived from zinc dialkyldithiophosphate; and (f) от 50 до 400 ч./млн молибдена, происходящего из растворимого в масле органического соединения молибдена;(f) 50 to 400 ppm of molybdenum derived from an oil-soluble organic compound of molybdenum; в котором весовое отношение (b) к (c) больше или равно 0,5.in which the weight ratio of (b) to (c) is greater than or equal to 0.5. 37. Моторное масло, содержащее:37. Motor oil containing: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) от 0,1 до 1,5 мас.% 4,4′-метиленбис(2,6-ди-трет-бутилфенола);(b) from 0.1 to 1.5% by weight of 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) алкилированный дифениламин;(c) alkylated diphenylamine; (d) от 1,0 до 12,0 мас.%, по меньшей мере, одного соединения, выбранного из группы, состоящей из диспергирующих и моющих присадок;(d) from 1.0 to 12.0 wt.%, at least one compound selected from the group consisting of dispersing and washing additives; (e) от 200 до 600 ч./млн фосфора, происходящего из диалкилдитиофосфата цинка; и(e) 200 to 600 ppm of phosphorus derived from zinc dialkyldithiophosphate; and (f) от 50 до 400 ч./млн молибдена, происходящего из растворимого в масле органического соединения молибдена;(f) 50 to 400 ppm of molybdenum derived from an oil-soluble organic compound of molybdenum; в котором весовое отношение (b) к (c) больше или равно 0,5.in which the weight ratio of (b) to (c) is greater than or equal to 0.5. 38. Моторное масло по п.37, дополнительно содержащее:38. The engine oil according to clause 37, further comprising: (g) от 0,1 до 0,5 мас.% любого сложного эфира, производного 3,5-ди-трет-бутил-4-гидроксигидрокоричной кислоты.(g) from 0.1 to 0.5% by weight of any ester derivative of 3,5-di- tert -butyl-4-hydroxyhydrocinnamic acid. 39. Моторное масло, содержащее:39. Motor oil containing: (a) основное количество масла смазочной вязкости, выбранного из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of a lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) 4,4′-метиленбис(2,6-ди-трет-бутилфенол);(b) 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) от 0,2 до 1,0 мас.% алкилированного дифениламина и(c) from 0.2 to 1.0 wt.% alkylated diphenylamine and (d) от 1,0 до 12,0 мас.%, по меньшей мере, одного соединения, выбранного из группы, состоящей из диспергирующих и моющих присадок, и(d) from 1.0 to 12.0 wt.%, at least one compound selected from the group consisting of dispersing and washing additives, and (e) от 300 до 600 ч./млн фосфора, происходящего из диалкилдитиофосфата цинка;(e) 300 to 600 ppm of phosphorus derived from zinc dialkyldithiophosphate; в котором весовое отношение (b) к (c) больше или равно 0,5.in which the weight ratio of (b) to (c) is greater than or equal to 0.5. 40. Моторное масло по п.39, дополнительно содержащее:40. The engine oil of claim 39, further comprising: (g) от 0,1 до 0,5 мас.% любого сложного эфира, производного 3,5-ди-трет-бутил-4-гидроксигидрокоричной кислоты.(g) from 0.1 to 0.5% by weight of any ester derivative of 3,5-di- tert -butyl-4-hydroxyhydrocinnamic acid. 41. Моторное масло, содержащее:41. Motor oil containing: (a) основное количество масла смазочной вязкости, выбранное из группы, состоящей из группы II, группы III, группы IV и синтетических масел-компонентов на основе сложных эфиров;(a) a major amount of lubricating oil selected from the group consisting of group II, group III, group IV and synthetic ester based oil components; (b) от 0,1 до 1,5 мас.% 4,4′-метиленбис(2,6-ди-трет-бутилфенола);(b) from 0.1 to 1.5% by weight of 4,4′-methylenebis (2,6-di- tert- butylphenol); (c) алкилированный дифениламин;(c) alkylated diphenylamine; (d) от 1,0 до 12,0 мас.%, по меньшей мере, одного соединения, выбранного из группы, состоящей из диспергирующих и моющих присадок, и(d) from 1.0 to 12.0 wt.%, at least one compound selected from the group consisting of dispersing and washing additives, and (e) от 300 до 600 ч./млн фосфора, происходящего из диалкилдитиофосфата цинка;(e) 300 to 600 ppm of phosphorus derived from zinc dialkyldithiophosphate; в котором весовое отношение (b) к (c) больше или равно 0,5.in which the weight ratio of (b) to (c) is greater than or equal to 0.5. 42. Способ уменьшения общего количества летучих органических соединений, производимых двигателем внутреннего сгорания при нагревании и окислении моторного масла, включающий в себя смазку упомянутого двигателя композицией по п.1.42. A method of reducing the total amount of volatile organic compounds produced by an internal combustion engine when heating and oxidizing engine oil, comprising: lubricating said engine with the composition of claim 1. 43. Способ уменьшении количества отложений в двигателе внутреннего сгорания, включающий в себя смазку упомянутого двигателя композицией по п.1.43. A method of reducing the amount of deposits in an internal combustion engine, comprising lubricating said engine with the composition of claim 1. 44. Способ уменьшения загрязнения каталитического нейтрализатора в системе выхлопа двигателя внутреннего сгорания, включающий в себя смазку упомянутого двигателя композицией по п.1.44. A method of reducing contamination of a catalytic converter in an exhaust system of an internal combustion engine, comprising lubricating said engine with the composition of claim 1.
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