KR20000023606A - 알킬-치환 나프탈린과 에스테르를 포함하는 윤활제 - Google Patents
알킬-치환 나프탈린과 에스테르를 포함하는 윤활제 Download PDFInfo
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Abstract
알킬-치환 나프탈린과 에스테르를 포함하는 윤활제
Description
드라이브 체인, 파아티클 보드 프레스(particle board press), 텐터프레임 (tenter frames) 및 스텐터 프레임(stenter frames)에 사용하기 위한 윤활제 합성물은 점도 부동성을 필요로 한다.
에스테르를 포함하는 종래의 윤활제 합성물은 고온에서 에스테르에 의해 일어나는 점도 변화 때문에 고온에서 드라이브 체인에 사용하는 것이 만족스럽지 않았다.
폴리알파올레핀(polyalphaolefins) 을 사용한 합성물은 에스테르에 의해 일어나는 점도 변화가 동일하지 않더라도, 폴리알파올레핀을 가진 오일은 박막 상태에서 바미시(vamish)를 형성하는 경향 때문에 또한 만족스럽지 않았다. 종래의 윤활제 합성물의 다른 단점은 과도한 휘발성과 불충분한 작용 수명을 포함한다.
본 발명은 에스테르를 가진 윤활제 합성물에 알킬-치환 나프탈린 (alkyl-substituted naphthalene)을 포함시킴으로서 이러한 단점과 다른 단점들을 극복한다.
본 발명의 하나의 목적은 드라이브 체인 및 다른 체인 기계에 사용하기 위하여 개선된 점도 특성을 가지고 고온에서도 효과적인 윤활제를 제공하는 것이다.
본 발명의 다른 목적은 점도 특성이 개선되고 작용 수명이 증가된 고온 체인오일을 제공하는 것이다.
본 발명은 에스테르를 포함하는 윤활제에 관한 것이다. 특히, 본 발명은 휘발성과 작용 수명이 개선된 고온 체인 오일에 관한 것이다
본 발명의 윤활제 합성물은 알킬-치환 나프탈린과 에스테르를 포함하고 있다. 알킬-치환 나프탈린이란, 다른 길이를 가진 하나 또는 그 이상의 일직선이거나 분기된 알킬군으로 치환된 나프탈린을 말한다.
에스테르를 가진 윤활제 합성물내에 하나이상의 알킬-치환 나프탈린 합성물을 포함시키는 것은 오일의 전체적인 점도 감소는 물론, 오일의 작용 수명의 증가와 같은, 예상치 않은 개선점을 가져온다.
본 발명은 윤활제 합성물의 점도를 충분히 향상시킬 수 있는 양의 알킬-치환나프탈린을 포함한다. 대체적으로, 본 발명은 윤활제의 작용 수명을 충분히 증가시킬 수 있는 양의 알킬-치환 나프탈린을 포함한다. 일반적으로, 알킬-치환 나프탈린은 윤활제 합성물 중량의 약 10 퍼센트에서 약 50 퍼센트가 포함되거나, 약 12 퍼센트에서 약 30 퍼센트가 포함된다. 별도로 표시되지 않더라도, 이 명세서 전체에서, 합성물의 양은 전체 합성물의 중량에 의한 퍼센트로 기입된다.
본 발명에서 사용될 수 있는 에스테르는 여기에 참조로 통합되어 있는, Chemical Technology의 Kirk-Othmer Encyclopaedia (1994, 4판) 9권, 781-812 쪽에 개시되어 있다. 특히, 본 발명은 디에스테르, 프탈레이트 (phthalates), 트리멜라이트(trimellitates), 파이로멜라이트(pyromellitates), 산에스테르이합체(dimer acid ester), 폴리올(polyols) 및 다유산염 (polyoleates) 을 포함할 수 있다.
트리멜라이트류 에스테르와 폴리올이 특히 안정적이라는 것에 주목해야 한다. 어떤 실시예에서, 에스테르는 윤활제 합성물 중량의 약 40 퍼센트에서 약 90 퍼센트가 포함되거나, 약 50 퍼센트에서 약 80 퍼센트가 포함된다.
하기의 예는 본 발명의 특성을 이해하기 위한 기초를 제공하는 것이며, 본 발명의 범위를 한정하고자 하는 것은 아니다. 하기의 예는 다른 점성 등급을 가진 본 발명의 다른 실시예를 나타낸다.
예 I 예 II
Emkarate 9130 70% 63.4%
Mobil MCP 968 15% 18%
Indopol H-1900 - 16%
Parapol 1300 13% -
Irgalube 349 0.6% 0.6%
Irganox L06 0.6% 1%
Vanlube SS 0.4% 0.6%
Nasul 707 0.4% 0.4%
Emkarate 9130 은 ICI Chemical Polymer에서 시판하는 트리멜라이트류 산 에스테르이다. Mobil MCP 968 은 Mobil Chemical Co.에서 시판하는 트리알킬나프탈린과 디알킬족의 혼합물이다. Parapol 1300 과 Indopol H-1900 은 폴리부탄 중합체이다. Irgalube 349 는 Ciba-Geigy PLC에서 시판하는 항피로 첨가제이다. Irganox L06 은 또한 Ciba-Geigy PLC에서 시판하는 산화방지제이다. Vanlube SS 는 RT Vanderbilt Chemical Corp에서 시판하는 산화방지제이다. 마지막으로, Nasul 707 은 King Industies에서 시판하는 방부제이다.
예 1 에 개시된 실시예를 상업적으로 적용할때, 지정된 양의 Emkarate 9130과 Mobil MCP 968 이 화합되어 약 70℃에서 약 85℃ 까지의 온도로 가열된다. 이어서, Parapol 1300 (또는 Indopol H-1900), Irganox LO6 및 Vanlube SS 는 혼합물로 혼합된다. Irganox L06 과 Vanlube SS 는 혼합물로 용해되어야 하는 파우더이며, 이 혼합물은 Irganox L06 와 Vanlube SS 가 혼합물내에서 완전히 분산될 때까지 혼합되어야 한다. 그다음에, 합성물의 온도는 약 60℃ 로 낮아지고 Irgalube 349 와 Nasul 707 은 합성물로 혼합된다.
전술한 예들에서 윤활제 합성물의 샘플들은 전술한 단락에 기재된 단계에 따라서 준비된다. 합성물의 휘발성을 평가하기 위하여, TA 기계에 의한 열무게 분석을 위해 특별히 설계된 기계내에서 샘플을 일정한 온도에 두어서 몇몇 샘플의 등온 증발이 측정된다. 하기의 결과에서, "t90" 은 원래 샘플의 중량에서 10퍼센트가 휘발했을때 (즉, 샘플 중량의 90퍼센트가 남아있을때)를 나타내고, "t50" 은 원래 샘플 중량에서 50퍼센트가 휘발했을 때 (즉, 샘플 중량의 50퍼센트가 남아있을때)를 나타낸다.
예 I 예 II
200℃ t90 〉10시간 〉10시간
t50 〉10시간 〉10시간
225℃ t90 2.2시간 3.5시간
t50 〉10시간 〉10시간
250℃ t90 0.60시간 1.3시간
t50 3.3시간 5.5시간
275℃ t90 0.31시간 0.35시간
t50 1.3시간 1.3시간
이러한 테스트 결과는 본 발명의 효과적으로 개선된 휘발 특성을 보여준다.
본 발명의 우월성은 예 1 의 휘발 특성을 알킬 나프탈린 합성물을 포함하지 않는 샘플 (식 B) 의 휘발 특성과 비교함으로서 드러난다.
식 B;
Emkarate 9130 85%
Mobil MCP 968 -
Parapol 1300 13%
Irgalube 349 0.6%
Irganox L06 0.6%
Vanlube SS 0.4%
Nasul 707 0.4%
식 B 는 Mobil MCP 968(디알킬족과 트리알킬-나프탈린의 혼합물) 대신에 Emkarate 9130 (트리멜라이트류 산 에스테르) 을 더 포함한다는 것을 제외하면 식 B 는 예 1 과 동일한 성분을 동일한 양으로 갖는다. 예 1 과 식 B 의 1O mg 에서 12 mg 샘플에 대한 등온 정밀검사는 4가지 다른 온도에서 실시된다. 하기의 결과는 원래 샘플 중량의 50퍼센트가 4가지 온도각각에서 휘발되는 (즉, 샘플 중량의 50퍼센트가 남아있는) 시간을 나타낸다.
예I 식B
225℃ t50 〉10시간 7시간
250℃ t50 3.3시간 2.4시간
275℃ t50 1.4시간 0.6시간
300℃ t50 0.25시간 0.20시간
각각의 테스트 온도에서, 예 1 은 윤활제의 15퍼센트가 존재하지 않는 범위까지 휘발시켰을때 걸리는 시간이다. 이러한 결과에 따라서, 본 발명의 휘발성은 넓은 온도 범위에 걸쳐 개선된다는 것이 증명된다.
상기의 상술과, 예 및 데이터는 이러한 개시된 발명을 이해하고 사용하기 위한 기초가 된다. 그러나, 상기 상술중의 본 발명의 어떠한 실시예도 본 발명의 이론과 범위내에 있는 것이다.
본 발명의 윤활제 합성물은 고온 드라이브 체인등에 사용하기 위한 요구조건에 부합하는 능력이 주목할 만하다. 그러나, 본 발명은 낮은 휘발성과 작용 수명증가가 요구되는 임의의 윤활제로서 사용되는 것은 물론, 기어와 공기 압축기등에 사용하는 것도 또한 적당하다
Claims (6)
- 알킬-치환 나프탈린과 에스테르를 포함하는 것으로 하는 윤활제.
- 제 1 항에 있어서,상기 윤활제에는 알킬-치환 나프탈린이 중량으로 약 10에서 약 50 퍼센트, 바람직하게는, 약 12에서 30퍼센트가 포함되어 있는 것을 특징으로 하는 윤활제.
- 제 1 항 또는 2 항에 있어서,상기 윤활제는 디에스테르, 프탈레이트, 트리멜라이트, 파이로멜라이트, 산에스테르중합체, 폴리올 및 폴리올라이트중에서 선택된 최소한 하나의 에스테르를 포함하는 것을 특징으로 하는 윤활제.
- 전술한 항들중의 어느 한 항에 있어서,상기 윤활제에는 상기 에스테르가 중량으로 약 40에서 약 90퍼센트, 바람직하게는 약 50에서 약 80퍼센트가 포함되어 있는 것을 특징으로 하는 윤활제.
- 전술한 항들중의 어느 한 항에 청구된 윤활제는 드라이브 체인, 파아티클 보드 프레스, 텐터 프레임 및 스텐터 프레임용의 윤활제로 사용하는 것을 특징으로 하는 윤활제.
- 고온에서 윤활제의 휘발성을 감소시키기 위하여 에스테스를 포함하는 윤활제에 알킬-치환 나프탈린을 사용하는 것을 특징으로 하는 윤활제.
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JP (1) | JP2000514853A (ko) |
KR (1) | KR20000023606A (ko) |
CN (1) | CN1230212A (ko) |
AU (1) | AU3454397A (ko) |
BR (1) | BR9710296A (ko) |
CA (1) | CA2260046A1 (ko) |
CZ (1) | CZ6799A3 (ko) |
NO (1) | NO990104L (ko) |
PL (1) | PL331096A1 (ko) |
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US6436882B1 (en) | 2001-06-29 | 2002-08-20 | King Industries, Inc. | Functional fluids |
JP2005330328A (ja) * | 2004-05-18 | 2005-12-02 | Osamu Ogata | オイル性能の改善方法 |
EP2021440B1 (en) * | 2006-05-15 | 2015-07-01 | Shell Internationale Research Maatschappij B.V. | Lubricating oil composition |
DE202006019075U1 (de) * | 2006-09-13 | 2007-04-12 | Addinol Lube Oil Gmbh | Hochtemperaturschmierstoff für Ketten |
DE102014018718A1 (de) * | 2014-12-17 | 2016-06-23 | Klüber Lubrication München Se & Co. Kg | Hochtemperaturschmierstoffe |
DE102014018719A1 (de) * | 2014-12-17 | 2016-06-23 | Klüber Lubrication München Se & Co. Kg | Hochtemperaturschmierstoff für die Lebensmittelindustrie |
CN106833825A (zh) * | 2016-12-08 | 2017-06-13 | 天长市天龙泵阀成套设备厂 | 可改善润滑性能的链条润滑油 |
WO2019189834A1 (ja) * | 2018-03-30 | 2019-10-03 | 出光興産株式会社 | 潤滑油組成物 |
CN108865360A (zh) * | 2018-07-26 | 2018-11-23 | 郑州市欧普士科技有限公司 | 一种环保型合成酯类高温链条油及其制备方法 |
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JPH02286792A (ja) * | 1989-04-28 | 1990-11-26 | Nippon Oil Co Ltd | 潤滑油組成物 |
ATE102243T1 (de) * | 1991-01-11 | 1994-03-15 | Mobil Oil Corp | Schmiermittelzusammensetzungen. |
US5236610A (en) * | 1992-02-03 | 1993-08-17 | The United States Of America As Represented By The Secretary Of The Commerce | Stable high temperature liquid lubricant blends and antioxidant additives for use therewith |
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TR199900054T2 (xx) | 1999-03-22 |
JP2000514853A (ja) | 2000-11-07 |
AU3454397A (en) | 1998-02-09 |
NO990104D0 (no) | 1999-01-11 |
PL331096A1 (en) | 1999-06-21 |
EP0912663A1 (en) | 1999-05-06 |
CN1230212A (zh) | 1999-09-29 |
CZ6799A3 (cs) | 1999-08-11 |
NO990104L (no) | 1999-01-11 |
WO1998002510A1 (en) | 1998-01-22 |
BR9710296A (pt) | 1999-08-17 |
CA2260046A1 (en) | 1998-01-22 |
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