LUBRICATING OIL COMPOSITION AND AUTOMOTIVE TRANSMISSION OIL USING SAME
An object of the present invention is to provide a lubricating oil composition having a low viscosity and an extremely high viscosity index as well as an excellent shearing stability. The present invention relates to a lubricating oil composition including the following components (A) to (C): (A) a...
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| creator | YOKOMIZO, MASATO ICHIHASHI, TOSHIHIKO TAMOTO, YOSHITAKA |
| description | An object of the present invention is to provide a lubricating oil composition having a low viscosity and an extremely high viscosity index as well as an excellent shearing stability. The present invention relates to a lubricating oil composition including the following components (A) to (C):
(A) a low-viscosity synthetic oil including a compound containing an ether bond in a molecule thereof and having a kinematic viscosity of less than 10 mm 2 /s as measured at 40°C, in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm 2 /s) of the compound as measured at 40°C satisfy the following formula (1): Kinematic Viscosity at 40 ¢ °C ¤ 12 - O / C ratio × 30
(B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm 2 /s or more as measured at 100°C which includes at least one compound selected from the group consisting of an ±-olefin oligomer or a hydrogenated product of the ±-olefin oligomer, and an ethylene-propylene co-oligomer; and
(C) a polymethacrylate having a weight-average molecular weight of 50,000 or less. |
| format | Patent |
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(A) a low-viscosity synthetic oil including a compound containing an ether bond in a molecule thereof and having a kinematic viscosity of less than 10 mm 2 /s as measured at 40°C, in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm 2 /s) of the compound as measured at 40°C satisfy the following formula (1): Kinematic Viscosity at 40 ¢ °C ¤ 12 - O / C ratio × 30
(B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm 2 /s or more as measured at 100°C which includes at least one compound selected from the group consisting of an ±-olefin oligomer or a hydrogenated product of the ±-olefin oligomer, and an ethylene-propylene co-oligomer; and
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(A) a low-viscosity synthetic oil including a compound containing an ether bond in a molecule thereof and having a kinematic viscosity of less than 10 mm 2 /s as measured at 40°C, in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm 2 /s) of the compound as measured at 40°C satisfy the following formula (1): Kinematic Viscosity at 40 ¢ °C ¤ 12 - O / C ratio × 30
(B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm 2 /s or more as measured at 100°C which includes at least one compound selected from the group consisting of an ±-olefin oligomer or a hydrogenated product of the ±-olefin oligomer, and an ethylene-propylene co-oligomer; and
(C) a polymethacrylate having a weight-average molecular weight of 50,000 or less.</description><subject>CHEMISTRY</subject><subject>FUELS</subject><subject>INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS</subject><subject>LUBRICANTS</subject><subject>LUBRICATING COMPOSITIONS</subject><subject>METALLURGY</subject><subject>PEAT</subject><subject>PETROLEUM, GAS OR COKE INDUSTRIES</subject><subject>TECHNICAL GASES CONTAINING CARBON MONOXIDE</subject><subject>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDzCXUK8nR2DPH0c1fw9_RRcPb3DfAP9gzx9PdTcPRzUXAMDfH39Q_xDHNVCAly9Av29QwOBsmB1IYGg3QFO_q68jCwpiXmFKfyQmluBgU31xBnD93Ugvz41OKCxOTUvNSSeNcAIwtzY3MjQ0dDYyKUAACOXSxX</recordid><startdate>20150520</startdate><enddate>20150520</enddate><creator>YOKOMIZO, MASATO</creator><creator>ICHIHASHI, TOSHIHIKO</creator><creator>TAMOTO, YOSHITAKA</creator><scope>EVB</scope></search><sort><creationdate>20150520</creationdate><title>LUBRICATING OIL COMPOSITION AND AUTOMOTIVE TRANSMISSION OIL USING SAME</title><author>YOKOMIZO, MASATO ; ICHIHASHI, TOSHIHIKO ; TAMOTO, YOSHITAKA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2873721A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2015</creationdate><topic>CHEMISTRY</topic><topic>FUELS</topic><topic>INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS</topic><topic>LUBRICANTS</topic><topic>LUBRICATING COMPOSITIONS</topic><topic>METALLURGY</topic><topic>PEAT</topic><topic>PETROLEUM, GAS OR COKE INDUSTRIES</topic><topic>TECHNICAL GASES CONTAINING CARBON MONOXIDE</topic><topic>USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION</topic><toplevel>online_resources</toplevel><creatorcontrib>YOKOMIZO, MASATO</creatorcontrib><creatorcontrib>ICHIHASHI, TOSHIHIKO</creatorcontrib><creatorcontrib>TAMOTO, YOSHITAKA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YOKOMIZO, MASATO</au><au>ICHIHASHI, TOSHIHIKO</au><au>TAMOTO, YOSHITAKA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LUBRICATING OIL COMPOSITION AND AUTOMOTIVE TRANSMISSION OIL USING SAME</title><date>2015-05-20</date><risdate>2015</risdate><abstract>An object of the present invention is to provide a lubricating oil composition having a low viscosity and an extremely high viscosity index as well as an excellent shearing stability. The present invention relates to a lubricating oil composition including the following components (A) to (C):
(A) a low-viscosity synthetic oil including a compound containing an ether bond in a molecule thereof and having a kinematic viscosity of less than 10 mm 2 /s as measured at 40°C, in which a ratio of the number of oxygen atoms to the number of carbon atoms as constituents of the compound (O/C ratio) and the kinematic viscosity (mm 2 /s) of the compound as measured at 40°C satisfy the following formula (1): Kinematic Viscosity at 40 ¢ °C ¤ 12 - O / C ratio × 30
(B) a high-viscosity synthetic oil as a hydrocarbon-based synthetic oil having a kinematic viscosity of 40 mm 2 /s or more as measured at 100°C which includes at least one compound selected from the group consisting of an ±-olefin oligomer or a hydrogenated product of the ±-olefin oligomer, and an ethylene-propylene co-oligomer; and
(C) a polymethacrylate having a weight-average molecular weight of 50,000 or less.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CHEMISTRY FUELS INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION |
| title | LUBRICATING OIL COMPOSITION AND AUTOMOTIVE TRANSMISSION OIL USING SAME |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-03T04%3A15%3A15IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=YOKOMIZO,%20MASATO&rft.date=2015-05-20&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP2873721A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |