KR970070169A - 유압 유체 - Google Patents

유압 유체 Download PDF

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Publication number
KR970070169A
KR970070169A KR1019970013705A KR19970013705A KR970070169A KR 970070169 A KR970070169 A KR 970070169A KR 1019970013705 A KR1019970013705 A KR 1019970013705A KR 19970013705 A KR19970013705 A KR 19970013705A KR 970070169 A KR970070169 A KR 970070169A
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South Korea
Prior art keywords
composition according
composition
fatty acid
carbon atoms
fatty acids
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KR1019970013705A
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English (en)
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KR100465466B1 (ko
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토마스 에프. 뷘네만
아리어 디크 카르돌
아브라암 체 데 모이야
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이. 에디
유니케마 케미 비. 브이.
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Application filed by 이. 에디, 유니케마 케미 비. 브이. filed Critical 이. 에디
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    • C10M2229/044—Siloxanes with specific structure containing silicon-to-hydrogen bonds
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
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    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
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    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
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    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
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    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
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    • C—CHEMISTRY; METALLURGY
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    • C10M2229/04—Siloxanes with specific structure
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Abstract

본 발명은 적어도 에스테르화된 지방산의 부분(I)은 탄소 원자수 5-12개의 사슬 길이를 갖고 에스테르화된 지방산의 다른 부분(Ⅱ)는 탄소 원자수 16-22개의 사슬 길이를 가지며, ASTM(D2531)에 따라 시험할 경우 점성도 7000㎟/s 이하를 갖는, 폴리올 및 지방산의 혼합물의 에스테르로 이루어지는 조성물에 관한 것이다.
본 발명의 조성물은 예기치 않은 양호한 저온 특성, 특히 저온(예를 들어, -30℃)에서 장시간 동안 유지시킨 후 양호한 유동성을 갖는다. 본 발명의 조성물은 저온하에 응용시 유압 유체(의 부분)으로 사용되는데 적절하다.

Description

유압 유체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (19)

  1. 적어도 에스테르화된 지방산의 부분(I)은 탄소 원자수가 5-12개의 사슬 길이를 갖고 에스테르화된 지방산의 다른 부분(Ⅱ)는 탄소 원자수 16-22개의 사슬 길이를 가지며, ASTM(D2531)에 따라 시험할 경우 점성도 7000㎟/s 이하를 갖는, 폴리올 및 지방산의 혼합물의 에스테르로 이루어지는 조성물.
  2. 제1항에 있어서, ASTM(D2531)에 따라 시험할 경우 점성도 5000㎟/s 이하를 갖는 것을 특징으로 하는 조성물.
  3. 제1항 또는 제2항에 있어서, 에스테르화된 단쇄 지방산(I): 장쇄 지방산(Ⅱ)의 비는 중량 비로 2:1 및 1:20 사이인 것을 특징으로 하는 조성물.
  4. 제3항에 있어서, (I):(Ⅱ)의 비는 중량 비로 1:1 및 1:10 사이인 것을 특징으로 하는 조성물.
  5. 제1항 내지 제4항 중 어느 한 항에 있어서, 유화제가 거의 없는 것을 특징으로 하는 조성물.
  6. 제1항 내지 제5항 중 어느 한 항에 있어서, 항산화제를 더 함유하는 것을 특징으로 하는 조성물.
  7. 제1항 내지 제6항 중 어느 한 항에 있어서, 점성 지수(VI)개량제를 더 함유하는 것을 특징으로 하는 조성물.
  8. 제1항 내지 제7항 중 어느 한 항에 있어서, 마모 방지 화합물을 더 함유하는 것을 특징으로 하는 조성물.
  9. 제1항 내지 제8항 중 어느 한 항에 있어서, 거품 방지 화합물을 더 함유하는 것을 특징으로 하는 조성물.
  10. 제1항 내지 제9항 중 어느 한 항에 있어서, 유동점 완화제가 거의 없는 것을 특징으로 하는 조성물.
  11. 제1항 내지 제10항 중 어느 한 항에 있어서, 폴리올은 TMP(트리메틸올 프로판), PE(펜타에리트리톨), NPG(네오펜틸글리콜), 디-TMP, 트리-TMP, 디-PE, 트리-PE로 구성되는 군으로부터 선택되는 것을 특징으로 하는 조성물.
  12. 제11항에 있어서, 폴리올은 TMP로 이루어진 것을 특징으로 하는 조성물.
  13. 제1항 내지 제12항 중 어느 한 항에 있어서, 단쇄 지방산은 분지쇄 또는 직쇄 C8 또는 C10의 지방산, 또는 그의 혼합물로 이루어지는 것을 특징으로 하는 조성물.
  14. 제1항 내지 제13항 중 어느 한 항에 있어서, 장쇄 지방산은 올레산 또는 이소스테아르산으로 이루어지는 것을 특징으로 하는 조성물.
  15. 제1항 내지 제14항 중 어느 한 항에 있어서, 지방산 에스테르는 총 조성물을 기준으로 75중량% 이상의 양으로 존재하는 것을 특징으로 하는 조성물.
  16. 유압 유체의 제조에서 제1항 내지 제15항 중 어느 한 항에 따른 조성물의 용도.
  17. 유압 장치에서 제1항 내지 제15항 중 어느 한 항에 따른 조성물의 용도.
  18. 제17항에 있어서, 유압 장치는 이동 시스템의 부분인 것을 특징으로 하는 용도.
  19. 적어도 지방산 부분이 단쇄 길이(탄소 원자수 5-12개)를 갖고, 지방산의 다른 부분이 장쇄 길이(탄소 원자수 16-22개)를 가지는 것을 특징으로 하는 지방산의 혼합물로 폴리올을 에스테르화시키고, 임의로는 생성된 혼합 에스테르를 다른 성분과 혼합하는 것으로 이루어진 유압 유체의 제조 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
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