US20040242438A1 - All paraffinic, low temperature hydraulic oils - Google Patents

All paraffinic, low temperature hydraulic oils Download PDF

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Publication number
US20040242438A1
US20040242438A1 US10/802,607 US80260704A US2004242438A1 US 20040242438 A1 US20040242438 A1 US 20040242438A1 US 80260704 A US80260704 A US 80260704A US 2004242438 A1 US2004242438 A1 US 2004242438A1
Authority
US
United States
Prior art keywords
composition
viscosity
iso
oil
paraffinic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/802,607
Other languages
English (en)
Inventor
Kyle Lawrence
Lisa Semmel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
ExxonMobil Research and Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ExxonMobil Research and Engineering Co filed Critical ExxonMobil Research and Engineering Co
Priority to US10/802,607 priority Critical patent/US20040242438A1/en
Priority to AU2004225441A priority patent/AU2004225441A1/en
Priority to BRPI0408301-6A priority patent/BRPI0408301A/pt
Priority to EP04758581A priority patent/EP1613715A1/en
Priority to JP2006509530A priority patent/JP2006521459A/ja
Priority to CA002517455A priority patent/CA2517455A1/en
Priority to PCT/US2004/009893 priority patent/WO2004087851A1/en
Publication of US20040242438A1 publication Critical patent/US20040242438A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
    • 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base material
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—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 type
    • C10M2209/084—Acrylate; Methacrylate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/02—Viscosity; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/02—Pour-point; Viscosity index
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/68—Shear stability
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • the present invention relates to hydraulic oils. More particularly the present invention relates to low temperature, multi grade, hydraulic oils.
  • Hydraulic fluids are used in a wide variety of applications.
  • hydraulic fluids are used in vehicle transmissions, differentials, brakes and the like and in non-vehicular equipment and machinery used for example in injection molding and general manufacturing.
  • Hydraulic fluids are commercially available in different viscosity grades in order to meet equipment manufacture requirements. Many of these standard hydraulic fluids have difficulty, however, in meeting all of the viscometric properties required for the advanced designs of equipment now being developed and put into use. For example, in order to formulate low temperature, multi-grade hydraulic oils it has been necessary to use naphthenic base stocks or severely hydrotreated basestocks. Each of these approaches has disadvantages.
  • naphthenic basestocks are relatively more expensive than similar viscosity paraffinic basestocks.
  • Another disadvantage is availability. There are fewer producers of naphthenic basestocks than paraffinic basestocks.
  • the present invention comprises a multi-grade hydraulic oil comprising:
  • composition of the present invention include two Group I paraffinic oils.
  • Group I paraffin oils typically have viscosity indicies in the range of about 80 to 120, contain ⁇ 90% saturates and >0.03% sulfur.
  • the first Group I paraffinic oil of the present invention is one having a viscosity of 2 to 6 cSt at 100° C. and a viscosity index (VI) of 85 to 95. Also, the first Group I paraffinic oil will comprise from 5 wt % to 90 wt %, based on the total weight of the composition.
  • the second Group I paraffinic oil is one having a viscosity of 3 to 15 cSt at 100° C. and a VI of 90 to 95.
  • the second Group I oil will be present in the composition in an amount in the range of 5 wt % to 90 wt % based on the total weight of the composition.
  • the hydraulic oil also contains a poly methacrylate viscosity index improver (VII) having a shear stability index in the range of 0 to 20, and preferably 10 to 20.
  • VII poly methacrylate viscosity index improver
  • suitable polymethacrylate VII's will have average molecular weights in the range of about 10,000 to 1,000,000, and more typically between about 20,000 to about 500,000.
  • the amount of this VII component is from 5 wt % to 10 wt %, preferably from 6 wt % to 7.5 wt % based on the weight of the composition.
  • compositions that will have a shear loss of less than 7% after 40 minutes for any given viscosity grade having at least substantially the same low temperature properties as a naphthenic oil containing hydraulic fluid composition of the same viscosity grade.
  • the compositions preferably have the properties shown in Table 1.
  • Table 1 ASTM Test Property Method Units ISO 15 ISO 22 ISO 32 ISO 46 ISO 68 ISO 100 ISO 150 Maximum D445 cSt 15.50 23.90 32.30 47.00 71.40 105.00 150.00 KV @ 40° C. Pour point D97 ° C.
  • Brookfield D2983 500 1000 1300 2600 6000 12000 22,500 Viscosity, 0° F. Brookfield D2983 CP 1000 2500 5000 12000 30,000 80,000 N.A. Viscosity, ⁇ 20° F. Maximum D5621 % 7 7 7 7 7 7 7 Shear Loss
  • the hydraulic oil composition will typically include a minor amount of a conventional additive typically used in hydraulic oils such as pour point depressants, anti-oxidants, anti-foam agents and the like.
  • I A Group I paraffinic oil having a viscosity of about 2.6 cSt at 100° C. and a VI of 85.
  • V A Group I paraffinic oil having a viscosity of about 14 cSt at 100° C. and a VI of 90.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US10/802,607 2003-03-28 2004-03-17 All paraffinic, low temperature hydraulic oils Abandoned US20040242438A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US10/802,607 US20040242438A1 (en) 2003-03-28 2004-03-17 All paraffinic, low temperature hydraulic oils
AU2004225441A AU2004225441A1 (en) 2003-03-28 2004-03-26 All paraffinic, low temperature hydraulic oils
BRPI0408301-6A BRPI0408301A (pt) 2003-03-28 2004-03-26 composição de óleo hidráulico
EP04758581A EP1613715A1 (en) 2003-03-28 2004-03-26 All paraffinic, low temperature hydraulic oils
JP2006509530A JP2006521459A (ja) 2003-03-28 2004-03-26 全パラフィン低温作動油
CA002517455A CA2517455A1 (en) 2003-03-28 2004-03-26 All paraffinic, low temperature hydraulic oils
PCT/US2004/009893 WO2004087851A1 (en) 2003-03-28 2004-03-26 All paraffinic, low temperature hydraulic oils

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45863903P 2003-03-28 2003-03-28
US10/802,607 US20040242438A1 (en) 2003-03-28 2004-03-17 All paraffinic, low temperature hydraulic oils

Publications (1)

Publication Number Publication Date
US20040242438A1 true US20040242438A1 (en) 2004-12-02

Family

ID=33135108

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/802,607 Abandoned US20040242438A1 (en) 2003-03-28 2004-03-17 All paraffinic, low temperature hydraulic oils

Country Status (7)

Country Link
US (1) US20040242438A1 (ja)
EP (1) EP1613715A1 (ja)
JP (1) JP2006521459A (ja)
AU (1) AU2004225441A1 (ja)
BR (1) BRPI0408301A (ja)
CA (1) CA2517455A1 (ja)
WO (1) WO2004087851A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111211A1 (en) * 2005-04-22 2006-10-26 Evonik Rohmax Additives Gmbh A use of a polyalkylmethacrylate polymer
US20070197411A1 (en) * 2005-10-13 2007-08-23 Hiroshi Kaneko Lubricating oil composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111234905B (zh) * 2020-01-13 2022-08-09 江苏龙蟠科技股份有限公司 超低温重负荷车辆齿轮油组合物

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873455A (en) * 1971-11-26 1975-03-25 Richard D Schieman Five-grade motor oil for internal combustion engines
US5520832A (en) * 1994-10-28 1996-05-28 Exxon Research And Engineering Company Tractor hydraulic fluid with wide temperature range (Law180)
US5641732A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5641733A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5888946A (en) * 1997-12-30 1999-03-30 Chevron U.S.A. Inc. Tractor hydraulic fluid
US5942472A (en) * 1997-06-12 1999-08-24 Exxon Chemical Patents Inc. Power transmission fluids of improved viscometric and anti-shudder properties
US6077455A (en) * 1995-07-17 2000-06-20 Exxon Chemical Patents Inc Automatic transmission fluid of improved viscometric properties
US6660695B2 (en) * 2002-03-15 2003-12-09 Infineum International Ltd. Power transmission fluids of improved anti-shudder properties

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776967A (en) * 1987-02-27 1988-10-11 Idemitsu Kosan Company Limited Lubricating oil composition
JP2555284B2 (ja) * 1987-05-14 1996-11-20 出光興産株式会社 温度特性改良潤滑油組成物
DE4000753A1 (de) * 1990-01-12 1991-07-18 Roehm Gmbh Kraftuebertragungsfluessigkeit auf basis mineraloel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873455A (en) * 1971-11-26 1975-03-25 Richard D Schieman Five-grade motor oil for internal combustion engines
US5520832A (en) * 1994-10-28 1996-05-28 Exxon Research And Engineering Company Tractor hydraulic fluid with wide temperature range (Law180)
US5641732A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US5641733A (en) * 1995-07-17 1997-06-24 Exxon Chemical Patents Inc. Automatic transmission fluids of improved viscometric properties
US6077455A (en) * 1995-07-17 2000-06-20 Exxon Chemical Patents Inc Automatic transmission fluid of improved viscometric properties
US5942472A (en) * 1997-06-12 1999-08-24 Exxon Chemical Patents Inc. Power transmission fluids of improved viscometric and anti-shudder properties
US5888946A (en) * 1997-12-30 1999-03-30 Chevron U.S.A. Inc. Tractor hydraulic fluid
US6660695B2 (en) * 2002-03-15 2003-12-09 Infineum International Ltd. Power transmission fluids of improved anti-shudder properties

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006111211A1 (en) * 2005-04-22 2006-10-26 Evonik Rohmax Additives Gmbh A use of a polyalkylmethacrylate polymer
US20070197411A1 (en) * 2005-10-13 2007-08-23 Hiroshi Kaneko Lubricating oil composition

Also Published As

Publication number Publication date
EP1613715A1 (en) 2006-01-11
JP2006521459A (ja) 2006-09-21
CA2517455A1 (en) 2004-10-14
AU2004225441A1 (en) 2004-10-14
WO2004087851A1 (en) 2004-10-14
BRPI0408301A (pt) 2006-03-07

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