KR100261820B1 - 자동차용 윤활제 - Google Patents

자동차용 윤활제 Download PDF

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KR100261820B1
KR100261820B1 KR1019940702718A KR19940702718A KR100261820B1 KR 100261820 B1 KR100261820 B1 KR 100261820B1 KR 1019940702718 A KR1019940702718 A KR 1019940702718A KR 19940702718 A KR19940702718 A KR 19940702718A KR 100261820 B1 KR100261820 B1 KR 100261820B1
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South Korea
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oil
lubricant
white
main raw
weight
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KR1019940702718A
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English (en)
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KR950700391A (ko
Inventor
마르쎌 알퐁스죠셉 오스띵
도미니끄 알브
알렝가브리엘 부페
에드가 안드레아스 슈타이거발트
Original Assignee
에치. 에이. 소머즈
에쏘쏘씨에떼아노님프랑세즈
나체만 제시카 알
엑손 리써치 앤드 엔지니어링 컴파니
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Publication of KR950700391A publication Critical patent/KR950700391A/ko
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Publication of KR100261820B1 publication Critical patent/KR100261820B1/ko

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
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    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/02—Petroleum fractions
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    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/02—Hydrocarbon polymers; Hydrocarbon polymers modified by oxidation
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    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/04—Hydroxy compounds
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    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/12—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to a carbon atom of a six-membered aromatic ring
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/20—Thiols; Sulfides; Polysulfides
    • C10M135/28—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to a carbon atom of a six-membered aromatic ring
    • C10M135/30—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to a carbon atom of a six-membered aromatic ring containing hydroxy groups; Derivatives thereof
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/32—Heterocyclic sulfur, selenium or tellurium compounds
    • C10M135/36—Heterocyclic sulfur, selenium or tellurium compounds the ring containing sulfur and carbon with nitrogen or oxygen
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    • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
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    • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
    • C10M137/04—Phosphate esters
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    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
    • C10M145/14—Acrylate; Methacrylate
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    • C10M155/00—Lubricating compositions characterised by the additive being a macromolecular compound containing atoms of elements not provided for in groups C10M143/00 - C10M153/00
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    • C10M169/04—Mixtures of base-materials and additives
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
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    • C10M2201/087—Boron oxides, acids or salts
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    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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Abstract

본 발명은 화이트 오일로 구성되는 베이스스톡; 및 최소한 하나는 산화 방지제인, 하나이상의 첨가제로 구성되는 자동차용 윤활제에 관한다. 윤활제는 예를들면 엔진오일, 기어오일 또는 자동전송유로서 사용할 수 있다.

Description

자동차용 윤활제
본 발명은 엔지 오일, 기어 오일 및 자동 전동 장치용 유체와 같은 자동차용 윤활제에 관한 것이다.
종래, 자동차용 윤활제는 통상의 광물성 오일을 기재로서 사용하여 왔다. 과거에는 이들이 적합한 것으로 판명되었지만, 광물성 오일 주원료는 우수한 윤활제 특성, 특히 유효 수명(operational lifetime)에 대한 요구의 증대에 항상 부합될 수 없었다. 첨가제를 사용함으로써 이러한 개선된 특성을 어느 정도까지 얻을 수 있었지만, 주원료를 개질 또는 변화시키기 위한 연구 역시 행하여져 왔다. 최근에 와서, 윤활제 제조업자들은 폴리알파올레핀계 및 에스테르계와 같은 합성 주원료를 기재로 하는 자동차용 윤활제를 생산하여 왔다. 이들은 개선된 성능을 제공하기는 하지만, 값이 비싸다는 단점이 있다.
그러므로, 개선된 특성을 제공하는 보다 저렴한 다른 주원료를 사용한 자동차용 윤활제의 필요성이 있는 것이다.
영국 특허 제737,392호에는 항산화제로서 유기 주석 화합물을 함유하는 윤활유가 기재되어 있다. 이 주원료는 통상의 방법으로 정제한 석유 증류물 및 잔류물, 수소 첨가된 광물성 오일, 화이트 광물성 오일, 또는 단독으로 또는 광물성 오일 윤활제와 혼합하여 사용되는 폴리에테르계 및 폴리에스테르계 윤활제로부터 유도될 수 있다. 이 윤활제는 크랭크 케이스 오일, 난방 오일, 수압용 유체, 절삭 오일, 터빈 오일 또는 변압기 오일로 사용될 수 있다.
미합중국 특허 제3,853,773호에는 정밀 기계 장치에 사용하기 위한 항점착성 용매화 윤활제가 기재되어 있다. 이 윤활제는 A형 전동 장치용 유체(이 특허에 정의되어 있음)와 정제도가 높은 화이트 오일의 혼합물을 기재로 하고 있다.
미합중국 특허 제4,652,385호에는 항산화제로서 삼치환된 포스파이트 및 입체적으로 힌더드(hindered)된 페놀계 안정화제의 혼합물을 함유하는 윤활제가 기재되어 있다. 이 주원료는 수소화 처리된 오일, 폴리알파올레핀계 오일 또는 파라핀계 화이트 오일, 또는 이들의 혼합물이다. 이 윤활제는 고온 응용 분야, 예를 들어 압축기 오일, 열전달용 오일, 수압용 유체 또는 증기 터빈 오일로서 사용된다.
하나의 특징으로서, 본 발명은 (a) 화이트 오일이 30중량% 이상인 주원료 및 (b) 아연 디알킬디티오포스페이트, 아연 디아릴디티오포스페이트, 아연 알킬 아릴디티오포스페이트, 알킬화 디페닐아민, 힌더드 페놀, 인황화 알킬페놀, 황화페놀 또는 디메르캅토-디티아디아졸 및 구리 기재 항산화제 화합물 중의 1종 이상으로부터 선택되는 항산화제를 함유하고, 주석 함유 항산화제 또는 유기 치환된 포스파이트 또는 디포스파이트 항산화제를 함유하지 않는 자동차용 윤활제를 제공한다.
본 발명의 화이트 오일 기재의 자동차용 윤활제는 광물성 오일 기재의 자동차용 윤활제에 비하여 더 우수한 산화 안정성을 나타내면서도 합성 오일 기재의 윤활제에 비하여 생산비가 더 낮다는 장점이 있다. 그러므로, 본 발명의 윤활제는 유효 기간이 증가된다는 잇점이 있다. 즉, 본 발명의 윤활제는 배액 및 교환이 요구되기 전까지의 장기간 동안 기계 장치, 예를 들면 엔진 또는 기어 박스를 윤활시키는 데 사용될 수 있다. 몇 가지 응용 분야의 경우, 본 발명의 윤활제는 반영구적인, 즉 그 윤활제의 유효 기간이 그 윤활제가 윤활시키는 기계 부품의 수명과 일치하거나 더 긴 윤활제로서 사용될 수 있다.
화이트 오일은 1991년도 미합중국 "식품의약국 연방 규정 코드집(FDA CFR)"에 정의되어 있다. 본 발명에서는 FDA 21 CFR 178-3620(a) 규정에 따른 의료용 화이트 오일, 또는 FDA CFR 178-3620(b) 규정에 따른 공업용 화이트 오일을 사용할 수 있다.
화이트 오일은 황 및 질소 성분이 없는 포화 탄화수소를 얻기 위해 통상의 용매 추출 및 수소화 반응을 이용하여 얻어지는 통상의 화이트 오일이다. 나프텐함량이 비교적 높은 화이트 오일이 파라핀 함량이 더 높은 화이트 오일에 비해 개선된 특성을 나타내는 것으로 알려져 있다. '나프텐 함량'을 ASTM D 2140 표준시험법에 따른 화이트 오일의 전체 탄소 함량 중의 나프텐 탄소의 양을 백분율로 나타낸 것이라고 정의할 때, 본 발명에 사용되는 화이트 오일은 나프텐 함량이 25중량% 이상인 것이 바람직하다. 더 바람직하게는 화이트 오일의 나프텐 함량은 30 내지 50중량%이고, 가장 바람직하게는 30 내지 40중량%이다. 나프텐 함량이 높은 화이트 오일은 그 오일에 함유된 시클릭(환상)분자들이 거의 분해되지 않도록 혼화한 수소화 조건을 이용하여 얻는다. 대표적인 온화한 수소화 조건은 온도가 150 내지 250℃이고, 압력이 1,000 내지 20,000kPa인 조건이다.
바람직하게는, 본 발명에서 유리하게 사용되는 나프텐 함량이 높은 화이트 오일의 나프텐 조성은 다음과 같다. 이 때, 측정치는 ASTM D 2786 표준 시험법을 이용하여 얻어진 것이다.
1환 : 20-30중량%, 바람직하게는 24-32중량%
2환 : 13-27중량%, 바람직하게는 17-23중량%
3환 : 4-21중량%, 바람직하게는 8-17중량%
4환 : 3-19중량%, 바람직하게는 7-15중량%
5환 또는 그 이상 : 0-9중량, 바람직하게는 2-5중량%
본 발명에서 사용될 수 있는 적당한 FDA 규정의 식품급 화이트 오일의 예로는 마르콜(MARCOL) 52 (나프텐 함량 34%), 마르콜 82(나프텐 함량 32%), 마르콜 172(나프텐 함량 34%), 프리몰(PRIMOL) 352(나프텐 함량 32%) 및 플라스톨(PLASTOL) 352(나프텐 함량 32%)를 들수 있는데, 이들은 모두 엑손/엣소(Exxon/Esso)의 제품이다. 본 발명에서 사용될 수 있는 적당한 FDA 규정의 공업용 화이트 오일의 예로는 베이올(BAYOL) 52(나프텐 함량 34%) 및 플라스톨 135(나프텐 함량 36%)를 들 수 있는데, 이들은 모두 엑손/엣소의 제품이다. 마르콜, 프리몰, 플라스톨 및 베이올은 엑손 코포레이션의 상표이다. 나프텐 함량은 ASTM 2140 표준 시험법에 따라서 측정한다.
상기 주원료는 100% 화이트 오일이거나, 또는 화이트 오일과, 1종 이상의 다른 종류의 오일, 예를 들면 광물성 오일 및(또는) 폴리알파올레핀 또는 폴리올 에스테르 또는 디에스테르 등의 에스테르와 같은 합성 오일 및(또는) 수소 첨가 분해형 주원료와의 혼합물로 이루어질 수 있다. 주원료가 혼합물인 경우, 그 주원료 중에 함유되는 화이트 오일의 비율은 바람직하게는 30중량%이상이고, 더 바람직하게는 30 내지 60중량%이고, 가장 바람직하게는 30 내지 40중량%이다. 화이트 오일을 합성 오일과 혼합시키는 경우, 합성 오일은 폴리알파올레핀, 예를 들면 PAO 4 및(또는) PAO 6(여기서, 4 및 6은 각각 PAO의 100℃에서의 점도(단위: 센티스톡)인 것이 좋다. 주원료가 화이트 오일, 광물성 오일 및 합성 오일의 혼합물인 경우, 양호한 비율은 화이트 오일 30 내지 80중량%, 광물성 오일 10 내지 70중량% 및 합성 오일 5 내지 50중량%이다.
또한, 상기 자동차용 윤활제는 필요시에 엔진 오일, 기어 오일 또는 자동차 전동장치용 유체 중에 함유되는 통상적인 첨가제들과 같은 다른 첨가제를 함유할 수도 있다. 이러한 첨가제로서는 세정제, 예를 들면 알칼리 토금속 술포네이트, 칼슘 살리실레이트, 알칼리 토금속 황화 페네이트; 회분 무함유 분산제, 예를 들면 폴리이소부텐숙신이미드; 마모/극압 방지제, 예를 들면 아연 디알킬(또는 디아릴 또는 아릴알킬)디티오포스페이트 및 인/황 또는 붕산 화합물; 부식 방지제, 예를 들면 바륨 알킬 나프탈렌 술포네이트 및 메르캅토벤조트리아졸; 점도 지수 개선제, 예를 들면 올레핀 공중합체, 폴리알파올레핀, 폴리메타크릴레이트 및 스티렌 부타디엔; 유동점 강하제, 예를 들면 폴리에스테르; 소포제, 예를 들면 규소 기재 소포제; 그리고 마찰 개선제, 예를 들면 몰리브덴 화합물, 회분 무함유 화합물 및 소음 방지제를 들 수 있다. 각 첨가제에 있어서, 자동차용 윤활제에 함유되는 양은 첨가제의 종류 및 윤활제의 사용 목적에 따라 달라진다. 그러나, 일반적으로, 각 첨가제는 윤활제의 전체 중량을 기준으로 하여 6중량% 이하의 양으로 첨가되지만, 점도 지수 개선제(들)는 약 10중량%이하(활성 성분)의 양으로 첨가할 수 있다. 첨가제 중의 일부 또는 전부는 애드팩(addpack)에 의해서 자동차용 윤활제에 도입할 수 있다.
일반적으로, 본 발명의 자동차용 윤활제의 100℃에서의 점도는 4 내지 50mm2/s이고, 점도 지수는 80 내지 200이다. 더 구체적으로 말하자면, 상기 윤활제가 엔진 오일인 경우에, 100℃에서의 점도는 바람직하게는 4 내지 35mm2/s, 더 바람직하게는 5 내지 25mm2/s이고, 점도 지수는 85 내지 160, 더 바람직하게는 95 내지 150이다. 상기 윤활제가 기어 오일인 경우에, 100℃에서의 점도는 바람직하게는 5 내지 50mm2/s, 더 바람직하게는 8 내지 25mm2/s이고, 점도 지수는 80 내지 180, 더 바람직하게는 95 내지 160이다. 윤활제가 자동차 전동 장치용 유체인 경우에, 100℃에서의 점도는 바람직하게는 4 내지 10mm2/s, 더 바람직하게는 5 내지 8mm2/s이고, 점도 지수는 100 내지 200, 더 바람직하게는 150 내지 200이다.
화이트 오일은 첨가제로서 황산화제를 함유하는 것이 중요하다. 놀랍게도, 황산화제를 첨가하지 않고 시험한 화이트 오일은 산화에 대해 민감하고, 광물성 오일에 비해 더 낮은 성능을 가질 수 있다는 것이 밝혀졌다. 그러나, 화이트 오일 윤활제 조성물에 항산화제가 함유되는 경우에, 산화 성능은 대응하는 광물성 오일 기재 조성물에 비해서 우수하다.
항산화제는 아연 디알킬 디티오포스페이트, 아연 디아릴 디티오포스페이트, 아연 알킬아릴 디티오포스페이트, 알킬화 디페닐아민, 힌더드 페놀, 인황화 알킬페놀, 황화 페놀, 디메르캅토 디티아티아졸 및 올레산 구리 및 구리 폴리이소부틸렌 숙신산 무수물 또는 그의 유도체와 같은 구리 기재 황산화제 중의 1종 이상으로부터 선택된다. 윤활제에 첨가되는 항산화제의 양은, 윤활제의 전체 중량을 기준으로 하여, 바람직하게는 0.05 내지 3중량%, 더 바람직하게는 0.1 내지 2중량%, 가장 바람직하게는 0.2 내지 1.0중량%이다.
기어 오일 또는 자동차 전동 장치용 유체 중의 화이트 오일은 전술한 것이 바람직하며, 광물성 오일 또는 합성 오일 또는 이들 양자와 모두 혼합시킴으로써 화이트 오일 주원료 혼합물을 형성할 수 있다. 혼합되는 경우에, 주원료는 그 주원료의 중량을 기준으로 하여 화이트 오일을 50중량% 이상 함유시키는 것이 바람직하다.
본 발명을 아래의 실시예들에 의해 예시하겠다. 이들 실시예는 첨부 도면의 참조를 포함하고 있다. 이들 도면에 있어서,
제1도는 화이트 오일, 광물성 오일 및 합성 오일 주원료를 기재로 하는 초고성능 디젤 오일의 산화 안정성을 나타내는 그래프이고,
제2도는 화이트 오일 및 광물성 오일 주원료를 기재로 하는 자동차용 기어 오일의 산화 안정성을 나타내는 그래프이다.
[실시예 1]
통상의 용매 추출법 및 온화한 수소화 방법에 의해 다음의 특성을 갖는 화이트 오일을 얻었다.
화이트 오일을 후술하는 실시예들에 기재한 바와 같이 여러 종류의 자동차용 윤활제로 조제하였다. 각 윤활제의 산화 안정성은 GFC TO21A90 표준 시험법에 따라서 시험하였다. 하기 실시예에서 기술한 바와 같이, 광물성 오일, 합성 오일 및 수소 첨가 분해형 주원료를 기재로 하는 대응하는 윤활제 조성물들의 산화 안정성과 비교하였다.
[실시예 2]
상기 실시예 1에서 명시한 화이트 오일 A 및 B의 혼합물을 기재로 하는 초고성능 디젤(SHPD) 엔진 오일을 다음과 같이 조제하였다.
* 아연 디알킬 디티오포스페이트("ZDDP")(여기서, 알킬기는 통상적으로 C5-C8직쇄 또는 분기쇄 알킬기, 예를 들면 2-에틸헥실기임) 산화 방지제 8.3 중량%를 함유한다. 따라서, 오일 조성물은 ZDDP 산화방지제 1.22중량%를 함유한다.
비교용으로, 화이트 오일을 등량의 (a) 통상의 광물성 오일 및 (b) PAO/에 스테르 합성 오일로 대체시킨 대응 조성물을 제조하였다. 이들 세 가지 오일 각각의 산화 안정성은 160℃의 온도에서 10ℓ/시간의 기류하에 오일 시료 300ml를 사용하여 시험 측정하였다. 그 결과를 제1도에 그래프로 나타내었다.
이 결과에 따르면, 통상의 광물성 오일을 기재로 하는 SHPD 오일은 800시간후에 분해되는 반면, 화이트 오일을 기재로 하는 대응 오일은 1,000 시간 후에도 만족스러울 정도의 효능을 나타냈으며, 합성 오일 기재 오일과 유사한 성능을 가졌다.
[실시예 3]
상기 실시예 1에서 명시한 화이트 오일 A를 기재로 하는 자동차용 기어 오일을 다음과 같이 조제하였다.
비교용으로, 화이트 오일을 등량의 통상의 광물성 오일 주원료로 대체시킨 대응하는 기어 오일을 제조하였다. 산화 안정성은 150℃에서 10ℓ/시간의 기류하에 시료 300ml를 사용하여 시험 측정하였다. 그 결과를 제2도에 그래프로 도시하였다.
이 결과에 따르면, 화이트 오일을 기재로 하는 기어 오일의 점도 증가율이 더 낮으므로, 광물성 오일을 기재로 하는 기어 오일보다 산화 안정도가 더 높았다.
[실시예 4]
주원료로서 화이트 오일(이 화이트 오일은 상기 실시예 1에서 명시한 화이트 오일 C임), 광물성 오일 및 PAO 합성 오일의 혼합물을 함유하는 자동차 전동장치용 유체(ATF)를 다음과 같이 조제하였다.
비교용으로, 화이트 오일을 등량의 통상의 광물성 오일 주원료로 대체시킨 대응하는 기어 오일을 제조하였다. 산화 안정성은 150℃에서 10ℓ/시간의 기류하에 시료 300ml를 사용하여 시험 측정하였다. 그 결과를 제3도에 그래프로 도시하였다.
이 결과에 따르면, 화이트 오일을 기재로 하는 기어 오일의 점도 증가율이 더 낮으므로, 광물성 오일을 기재로 하는 기어 오일보다 산화 안정도가 더 높았다.
[실시예 4]
주원료로서 화이트 오일(이 화이트 오일은 상기 실시예 1에서 명시한 화이트 오일 C임), 광물성 오일 및 PAO 합성 오일의 혼합물을 함유하는 자동차 전동장치용 유체(ATF)를 다음과 같이 조제하였다.
생성된 ATF의 100℃에서의 점도는 6.9 cSt(ASTM D 445)이고, -40℃에서의 점도는 22,500 cSt(DIN 51 562 파트 1)이다. 이 전동 장치용 유체의 산화 안정성은 가열(160℃)하의 전동 장치용 유체 500ml를 철/구리 촉매 존재하에 유속 10ℓ/분의 공기 중에 250 시간 동안 노출시켜서 시험하였다 (DIN 51587 시험에 의함). 통상의 광물성 오일 기재 ATF(ESSO ATF D-21065:엣소 악티엔게젤샤프트(Esso AG) 제품)를 사용하여 시험을 반복하였다.
노출된 전동 장치용 유체에 대해서, DIN 51 562 표준 시험법에 따라서 100℃에서의 동적 점도(KV 100)증가를 측정하고, 또한 ASTM 664 표준 시험법에 따라서 총산가(TAN)를 측정하였다. 그 결과를 아래 표 1에 나타낸다.
[표 1]
KV100의 증가가 작고 TAN이 작을 수록 ATF는 산화에 대해 더 안정하다. 따라서, 이 결과에 따르면, 본 발명의 화이트 오일 함유 ATF는 통상의 광물성 오일 기재 ATF에 비해 산화 특성이 월등히 우수하다.
상기 두 가지 ATF의 마찰 특성은 DKA 마찰 시험기를 사용하여 측정하였다. 이 시험기는 속도 3,000/분, 사이클 빈도 2/분, 에너지 밀도 0.6 내지 1.0 J/mm2및 온도 80℃에서 작동시켰다. 그 결과를 표 2에 나타낸다.
[표 2]
이 결과에 따르면, 화이트 오일 함유 ATF의 마찰 계수는 통상의 광물성 오일 함유 ATF와 동등하거나, 또는 어느 경우에서는 더 낮았다.

Claims (6)

  1. (a) 화이트 오일이 30중량% 이상인 주원료 및 (b) 아연 디알킬디티오포스페이트, 아연 디아릴디티오포스페이트, 아연 알킬아릴디티오포스페이트, 알킬화 디페닐아민, 힌더드 페놀, 인황화 알킬페놀, 황화 페놀 또는 디메르캅토-디티아디아졸 및 구리 기재 황산화제 화합물 중의 1종 이상으로부터 선택되는 항산화제를 함유하고, 주석 함유 항산화제 또는 유기 치환된 포스파이트 또는 디포스파이트 항산화제는 함유하지 않는 것이 특징인 자동차용 윤활제.
  2. 제1항에 있어서, 주원료는 화이트 오일과, 광물성 오일, 합성 오일 및 수소 첨가 분해형 주원료 중의 1종 이상으로 이루어진 혼합물인 것인 자동차용 윤활제.
  3. 제2항에 있어서, 합성 오일은 폴리알파올레핀인 것인 자동차용 윤활제.
  4. 제1항에 있어서, 주원료는 실질적으로 100% 화이트 오일인 자동차용 윤활제.
  5. 제1항 내지 4항 중 어느 하나의 항에 있어서, 화이트 오일은 나프텐 함량이 25중량% 이상인 것인 자동차용 윤활제.
  6. 제1항 내지 4중 어느 하나의 항에 있어서, 엔진 오일, 기어 오일 또는 자동차 전동 장치용 유체인 자동차용 윤활제.
KR1019940702718A 1992-02-07 1993-02-01 자동차용 윤활제 KR100261820B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9201411 1992-02-07
FR9201411A FR2687165A1 (fr) 1992-02-07 1992-02-07 Lubrifiant pour automobile.
PCT/EP1993/000231 WO1993016151A1 (en) 1992-02-07 1993-02-01 Automotive lubricant

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KR950700391A KR950700391A (ko) 1995-01-16
KR100261820B1 true KR100261820B1 (ko) 2000-07-15

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CA (1) CA2129657C (ko)
DE (1) DE69328480T2 (ko)
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FR (1) FR2687165A1 (ko)
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PT (1) PT633921E (ko)
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US20080090742A1 (en) * 2006-10-12 2008-04-17 Mathur Naresh C Compound and method of making the compound
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PT633921E (pt) 2000-08-31
US20030008783A1 (en) 2003-01-09
CA2129657A1 (en) 1993-08-19
FR2687165A1 (fr) 1993-08-13
DE69328480T2 (de) 2000-09-07
JP3488920B2 (ja) 2004-01-19
CA2129657C (en) 2003-07-29
EP0633921B1 (en) 2000-04-26
KR950700391A (ko) 1995-01-16
JPH07503494A (ja) 1995-04-13
EP0633921A1 (en) 1995-01-18
SG48186A1 (en) 1998-04-17
HK1014197A1 (en) 1999-09-24
ES2145780T3 (es) 2000-07-16
US6521570B2 (en) 2003-02-18
WO1993016151A1 (en) 1993-08-19
DE69328480D1 (de) 2000-05-31
ATE192185T1 (de) 2000-05-15

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