차량탑재 전장품의 감속기부용 그리스 조성물

• Main Authors: NAGASAWA YOSHIYUKI, ISHIZEKI TSUBASA, YAMAZAKI SATOSHI, TSUTSUI DAISUKE, NAKAMURA OSAMU, YOSHIDA HIROYUKI
• Format: Patent
• Language: Korean
• Published: 19.04.2022
• 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

본 발명에 의해, 기유 및 증주제를 함유하는 차량탑재 전장품의 감속기부용 그리스 조성물로서, 기유가, 100℃에서의 동점도가 4∼19㎟/s이고, 유동점이 -30℃ 이하인, 폴리α올레핀 또는 폴리α올레핀과 광유의 혼합유이고, 증주제가, 하기 식(1)로 표시되는 디우레아 화합물과, 하기 식(2)로 표시되는 디우레아 화합물의 혼합물이며, R1-NHCONH-R2-NHCONH-R1(1) R3-NHCONH-R2-NHCONH-R3(2)(식 중, R1은 탄소수 8 또는 18의 직쇄 알킬기이고, R2는 탄소수 6∼15의 2가의 방향족 탄화수소기이며, R3은 탄소수 6∼7의 아릴기임) 주도가 220∼280인, 상기 그리스 조성물을 제공한다. The invention provides a grease composition for a speed reducer part of an on-vehicle electric component, the grease composition containing a base oil and a thickener, whereinthe base oil is poly-α-olefin or a mixed oil of poly-α-olefin and mineral oil having a kinematic viscosity of 4 to 19 mm2/s at 100°C and a pour point of -30°C or lower,the thickener is a mixture of a diurea compound expressed by formula (1) and a diurea compound expressed by formula (2)        R1-NHCONH-R2-NHCONH-R1     (1)        R3-NHCONH-R2-NHCONH-R3     (2)wherein R1 is a straight-chain alkyl group having 8 or 18 carbon atoms, R2 is a divalent aromatic hydrocarbon group having 6 to 15 carbon atoms, and R3 is an aryl group having 6 to 7 carbon atoms, anda penetration of the grease composition is 220 to 280.