WO1998056880A1 - Power transmission fluids of improved viscometric and anti-shudder properties - Google Patents

Power transmission fluids of improved viscometric and anti-shudder properties Download PDF

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Publication number
WO1998056880A1
WO1998056880A1 PCT/US1998/008499 US9808499W WO9856880A1 WO 1998056880 A1 WO1998056880 A1 WO 1998056880A1 US 9808499 W US9808499 W US 9808499W WO 9856880 A1 WO9856880 A1 WO 9856880A1
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Prior art keywords
composition
viscosity
fluid
oils
lubricating oil
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Ceased
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PCT/US1998/008499
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English (en)
French (fr)
Inventor
Raymond Frederick Watts
David Edward Gindelberger
Christopher William Cornish
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ExxonMobil Chemical Patents Inc
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Exxon Chemical Patents Inc
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Application filed by Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Priority to KR1019997011725A priority Critical patent/KR100546922B1/ko
Priority to DE69806382T priority patent/DE69806382T2/de
Priority to AU71669/98A priority patent/AU725822B2/en
Priority to CA002288790A priority patent/CA2288790C/en
Priority to JP50240799A priority patent/JP2002503283A/ja
Priority to EP98918815A priority patent/EP0988357B1/en
Publication of WO1998056880A1 publication Critical patent/WO1998056880A1/en
Anticipated expiration legal-status Critical
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Definitions

  • Suitable hydrocarbyl polymers are ethylene copolymers containing from 15 to 90 wt. % ethylene, preferably 30 to 80 wt. % of ethylene, most preferably 40 to 70 wt. % of ethylene, and 10 to 85 wt. %, preferably 20 to 70 wt. %, most preferably 30 to 60 wt. %, of one or more C3 to C28, preferably C3 to CIQ , most preferably C3 to Cg ⁇ -olefins. While not essential, such copolymers preferably have a degree of crystallinity of less than 25 wt. %, as determined by X-ray and differential scanning calorimetry.
  • Example FM-4 The product of Example FM-1, 925 g (1.0 mol) , and 300 g of a naphthenic base oil (Necton-37 from Exxon Chemical Co.) were placed in a 2 liter flask fitted with a heating mantle, an overhead stirrer, nitrogen sweep, and condenser. The temperature of the mixture was raised to 80°C, the stirrer started and a nitrogen sweep begun. To this hot solution maleic anhydride, 98 g (1.0 mol), was added slowly over about 20 minutes. Once the addition was complete, the temperature was raised to 150°C and held there for 3 hours. The product was cooled and filtered. Yield: 1315 g; percent nitrogen: 5.2.
  • a naphthenic base oil Nacton-37 from Exxon Chemical Co.
  • Examples of compounds useful as the promoter include phenolic substances such as phenol, naphthol, alkylphenol, thiophenol, sulfurized alkylphenol, and condensation products of formaldehyde with a phenolic substance; alcohols such as methanol, 2- propanol, octanol, Cellosolve alcohol, Carbitol alcohol, ethylene glycol , stearyl alcohol , and cyclohexyl alcohol ; and amines such as aniline, phenylene diamine, phenothiazine, phenyl ⁇ -naphthylamine, and dodecylamine.
  • phenolic substances such as phenol, naphthol, alkylphenol, thiophenol, sulfurized alkylphenol, and condensation products of formaldehyde with a phenolic substance
  • alcohols such as methanol, 2- propanol, octanol, Cellosolve alcohol, Carbitol alcohol, ethylene glycol ,
  • Phenolic antioxidants include sterically hindered phenols (e.g., 2,6-di-tert-butylphenol, 4-methyl-2 , 6-di-tert- butylphenol, etc.) and bis-phenols (e.g., 4,4'- methylenebis(2 , 6-di-tert-butylphenol) , etc.) and the like.
  • sterically hindered phenols e.g., 2,6-di-tert-butylphenol, 4-methyl-2 , 6-di-tert- butylphenol, etc.
  • bis-phenols e.g., 4,4'- methylenebis(2 , 6-di-tert-butylphenol) , etc.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
PCT/US1998/008499 1997-06-12 1998-04-28 Power transmission fluids of improved viscometric and anti-shudder properties Ceased WO1998056880A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1019997011725A KR100546922B1 (ko) 1997-06-12 1998-04-28 향상된 점성 및 떨림 방지 성질을 갖는 동력 전달 유체
DE69806382T DE69806382T2 (de) 1997-06-12 1998-04-28 Kraftübertragunsflüssigkeiten mit verbesserten viskometrischen und schwingungsdämpfenden eigenschaften
AU71669/98A AU725822B2 (en) 1997-06-12 1998-04-28 Power transmission fluids of improved viscometric and anti-shudder properties
CA002288790A CA2288790C (en) 1997-06-12 1998-04-28 Power transmission fluids of improved viscometric and anti-shudder properties
JP50240799A JP2002503283A (ja) 1997-06-12 1998-04-28 改良された粘度特性と耐震動特性を有する動力伝達油
EP98918815A EP0988357B1 (en) 1997-06-12 1998-04-28 Power transmission fluids of improved viscometric and anti-shudder properties

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/873,405 US5942472A (en) 1997-06-12 1997-06-12 Power transmission fluids of improved viscometric and anti-shudder properties
US873,405 1997-06-12

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Publication Number Publication Date
WO1998056880A1 true WO1998056880A1 (en) 1998-12-17

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US10955009B2 (en) 2018-04-03 2021-03-23 Borgwarner Inc. Clutch pack having different clutch plate materials

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CA2288790A1 (en) 1998-12-17
AU725822B2 (en) 2000-10-19
AU7166998A (en) 1998-12-30
EP0988357A1 (en) 2000-03-29
EP0988357B1 (en) 2002-07-03
US5942472A (en) 1999-08-24
KR100546922B1 (ko) 2006-01-26
CA2288790C (en) 2006-11-14
KR20010013710A (ko) 2001-02-26
JP2002503283A (ja) 2002-01-29
DE69806382T2 (de) 2003-04-03
DE69806382D1 (de) 2002-08-08

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