DE3751955D1 - Cyclopentadiene, ihre Herstellung und sie enthaltende Schmiermittelzusammensetzungen - Google Patents

Cyclopentadiene, ihre Herstellung und sie enthaltende Schmiermittelzusammensetzungen

Info

Publication number
DE3751955D1
DE3751955D1 DE3751955T DE3751955T DE3751955D1 DE 3751955 D1 DE3751955 D1 DE 3751955D1 DE 3751955 T DE3751955 T DE 3751955T DE 3751955 T DE3751955 T DE 3751955T DE 3751955 D1 DE3751955 D1 DE 3751955D1
Authority
DE
Germany
Prior art keywords
cyclopentadienes
compositions containing
preparation
cyclopentenes
lubricant compositions
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.)
Expired - Lifetime
Application number
DE3751955T
Other languages
English (en)
Other versions
DE3751955T2 (de
Inventor
Clifford J Venier
Edward W Casserly
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.)
Pennzoil Quaker State Co
Original Assignee
Pennzoil Products 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 Pennzoil Products Co filed Critical Pennzoil Products Co
Application granted granted Critical
Publication of DE3751955D1 publication Critical patent/DE3751955D1/de
Publication of DE3751955T2 publication Critical patent/DE3751955T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/08Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring
    • C07C13/12Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring with a cyclopentene ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/08Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring
    • C07C13/10Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring with a cyclopentane ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/02Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/08Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring
    • C07C13/15Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a five-membered ring with a cyclopentadiene ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/861Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only halogen as hetero-atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
    • C07C2/864Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an alcohol
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/03Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/02Well-defined hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/06Systems containing only non-condensed rings with a five-membered ring
    • C07C2601/08Systems containing only non-condensed rings with a five-membered ring the ring being saturated
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/06Systems containing only non-condensed rings with a five-membered ring
    • C07C2601/10Systems containing only non-condensed rings with a five-membered ring the ring being unsaturated
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02Well-defined aliphatic compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02Well-defined aliphatic compounds
    • C10M2203/0206Well-defined aliphatic compounds used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02Well-defined aliphatic compounds
    • C10M2203/022Well-defined aliphatic compounds saturated
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/02Well-defined aliphatic compounds
    • C10M2203/024Well-defined aliphatic compounds unsaturated
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/04Well-defined cycloaliphatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE3751955T 1986-09-19 1987-09-18 Cyclopentadiene, ihre Herstellung und sie enthaltende Schmiermittelzusammensetzungen Expired - Lifetime DE3751955T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/909,305 US4721823A (en) 1986-09-19 1986-09-19 Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture

Publications (2)

Publication Number Publication Date
DE3751955D1 true DE3751955D1 (de) 1997-01-02
DE3751955T2 DE3751955T2 (de) 1997-06-19

Family

ID=25426998

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8787906700T Expired - Lifetime DE3774872D1 (de) 1986-09-19 1987-09-18 Cyclopentane und cyclopentane enthaltende schmiermittel.
DE3751955T Expired - Lifetime DE3751955T2 (de) 1986-09-19 1987-09-18 Cyclopentadiene, ihre Herstellung und sie enthaltende Schmiermittelzusammensetzungen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8787906700T Expired - Lifetime DE3774872D1 (de) 1986-09-19 1987-09-18 Cyclopentane und cyclopentane enthaltende schmiermittel.

Country Status (7)

Country Link
US (3) US4721823A (de)
EP (2) EP0441460B1 (de)
JP (6) JPH082803B2 (de)
AT (2) ATE145392T1 (de)
CA (1) CA1292754C (de)
DE (2) DE3774872D1 (de)
WO (1) WO1988001994A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929782A (en) * 1986-09-19 1990-05-29 Pennzoil Products Company Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
US5210351A (en) * 1986-09-19 1993-05-11 Pennzoil Products Company Preparation of alkylated cyclopentadienes
US4721823A (en) * 1986-09-19 1988-01-26 Pennzoil Products Company Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
US4849566A (en) * 1987-10-22 1989-07-18 Pennzoil Products Company Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture
US5180865A (en) * 1991-12-06 1993-01-19 Pennzoil Products Company Base oil for shear stable multi-viscosity lubricants and lubricants therefrom
GB2273107A (en) * 1992-10-16 1994-06-08 Exxon Chemical Patents Inc Production of cycloalkanes
US5436379A (en) * 1994-01-14 1995-07-25 Pennzoil Products Company Base oil for shear stable multi-viscosity lubricants and lubricants therefrom
US5578652A (en) * 1995-02-17 1996-11-26 Exxon Chemical Patents, Inc. Method of producing rigid foams and products produced therefrom
US5789836A (en) * 1995-03-25 1998-08-04 Sankyo Seiko Mfg. Co., Ltd. Motor having dynamic pressure bearing device
US6306919B1 (en) 1995-07-03 2001-10-23 Exxonmobil Chemical Patents, Inc. Thermosetting plastic foam
US5866626A (en) * 1995-07-03 1999-02-02 Exxon Chemical Patents Inc. Method of producing rigid foams and products produced therefrom
US20030158277A1 (en) * 1995-07-03 2003-08-21 Blanpied Robert H. Method of producing rigid foams and products produced therefrom
US5998683A (en) * 1996-08-06 1999-12-07 Exxon Chemicals Patents Inc. Process for forming cyclopentane from dicyclopentadiene
ES2212402T3 (es) * 1998-03-05 2004-07-16 Bp Koln Gmbh Procedimiento para la obtencion de ciclopentano y/o ciclopenteno.
US6620982B1 (en) * 1998-10-07 2003-09-16 Equistar Chemicals, Lp Method of producing purified cyclopentane
US7195828B2 (en) 1999-03-26 2007-03-27 Shell Oil Company Lubricant for magnetic recording medium and use thereof
KR100750844B1 (ko) 1999-03-26 2007-08-22 펜조일-퀘이커 스테이트 컴파니 자기기록매체용 윤활제 및 이의 용도
JP5036111B2 (ja) * 2001-08-20 2012-09-26 旭化成イーマテリアルズ株式会社 置換シクロペンタジエンの製造方法
US7732386B2 (en) 2005-10-25 2010-06-08 Chevron U.S.A. Inc. Rust inhibitor for highly paraffinic lubricating base oil
JP5099703B2 (ja) * 2008-07-10 2012-12-19 株式会社日立製作所 荷電粒子線装置
FR3024157B1 (fr) * 2014-07-24 2018-02-23 Total Marketing Services Composition lubrifiante comprenant un compose anti-cliquetis
SG10202005916QA (en) * 2015-12-22 2020-07-29 Zogenix International Ltd Fenfluramine compositions and methods of preparing the same
AU2017377873A1 (en) 2016-12-16 2019-07-11 Novoset, Llc Resin compositions
CN108047049B (zh) * 2017-12-07 2021-03-30 中国科学院兰州化学物理研究所 一种多烷基环戊烷润滑油组合物及其制备方法
US11685808B2 (en) 2020-06-11 2023-06-27 Novoset, Llc Oligomer resin compositions
TW202304939A (zh) 2020-10-22 2023-02-01 美商恩特葛瑞斯股份有限公司 環戊二烯的選擇性烷基化
US11884606B2 (en) 2021-11-29 2024-01-30 Entegris, Inc. Monoalkyl cyclopentadiene compounds and processes for preparing same
WO2023096782A1 (en) 2021-11-29 2023-06-01 Entegris, Inc. Organometallic compounds and processes for preparing same
JP2023151692A (ja) * 2022-03-31 2023-10-16 出光興産株式会社 化合物、潤滑油基油、及び潤滑油組成物

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2088598A (en) * 1935-03-07 1937-08-03 Universal Oil Prod Co Manufacture of alkylated cyclic hydrocarbons
US3004384A (en) * 1956-06-07 1961-10-17 Monsanto Chemicals Method of operating a turbojet engine with high energy fuels
US2953607A (en) * 1958-05-20 1960-09-20 Studiengesellschaft Kohle Mbh Process for the preparation of tertiary alkyl cyclopentadienes
US3000981A (en) * 1958-12-19 1961-09-19 Exxon Research Engineering Co Synthesis of hydrocarbon type lubricating oils
US3214483A (en) * 1959-09-30 1965-10-26 Du Pont Products of the reaction of an allene with a cyclopentadiene
US3131227A (en) * 1960-09-26 1964-04-28 California Research Corp New polyalkylcyclopentadienes
US3255267A (en) * 1962-09-10 1966-06-07 Union Carbide Corp Alkylation of cyclopentadienes
US3251897A (en) * 1962-12-20 1966-05-17 Socony Mobil Oil Co Inc Alkylation of aromatic compounds in the presence of an alumino-silicate catalyst
US3358008A (en) * 1962-12-28 1967-12-12 Union Carbide Corp Di (aluminoalkyl) cyclopentane polymers and their preparation
US3388180A (en) * 1962-12-28 1968-06-11 Union Carbide Corp Di (omega-alkenyl) cyclopentanes
US3391209A (en) * 1962-12-28 1968-07-02 Union Carbide Corp Di(omega-alkenyl) methylcyclopentanes
US3356704A (en) * 1962-12-28 1967-12-05 Union Carbide Corp Di (aluminoalkyl) methylcyclopentane polymers
US3403105A (en) * 1963-12-27 1968-09-24 Standard Oil Co Transaxle fluid
US3560583A (en) * 1969-05-15 1971-02-02 Du Pont Process of preparing substituted cyclopentadienes
US3931334A (en) * 1969-06-24 1976-01-06 Mobil Oil Corporation Lubricant compositions comprising substituted indans
US3751500A (en) * 1969-08-18 1973-08-07 Int Flavors & Fragrances Inc Hydrogenated indane derivatives and processes for producing same
US3773836A (en) * 1969-08-18 1973-11-20 Int Flavors & Fragrances Inc Indanone derivatives and processes for producing same
US3755492A (en) * 1971-03-12 1973-08-28 Universal Oil Prod Co Separate alkyl fluoride alkylation with a substantially pure hydrogenfluoride stream
FR2294191A1 (fr) * 1974-12-12 1976-07-09 Aquitaine Petrole Copolymeres d'olefines ou d'olefines et de dienes non conjugues avec des derives non satures d'imides cycliques
GB1560667A (en) * 1976-09-24 1980-02-06 Cooper & Co Ltd Edwin Sulphurize olefins and their use as lubricant additives
US4246373A (en) * 1980-02-14 1981-01-20 Kennedy Joseph P Synthesis of substituted cyclopentadienes and cyclopentadiene-functionalized polymers
US4419622A (en) * 1981-06-19 1983-12-06 The United States Of America As Represented By The Secretary Of The Army EM Sensor for determining impedance of EM field
US4412088A (en) * 1981-09-10 1983-10-25 Ashland Oil, Inc. Cyclopentadiene derivatives, method for preparing, and use thereof
US4547603A (en) * 1982-04-23 1985-10-15 Ethyl Corporation Methylcyclopentadiene synthesis
EP0158189B1 (de) * 1984-03-26 1989-06-07 Asahi Chemical Company, Limited Alkylierungsverfahren und Verfahren zur Herstellung von Alkylcyclopentadienen
JPS61100533A (ja) * 1984-10-23 1986-05-19 Idemitsu Kosan Co Ltd 1,3‐ジシクロヘキシル‐1‐メチルシクロペンタン
US4721823A (en) * 1986-09-19 1988-01-26 Pennzoil Products Company Lubricants comprising novel cyclopentanes, cyclopentadienes, cyclopentenes, and mixtures thereof and methods of manufacture

Also Published As

Publication number Publication date
JP3022811B2 (ja) 2000-03-21
DE3751955T2 (de) 1997-06-19
JPH1059874A (ja) 1998-03-03
JP2543492B2 (ja) 1996-10-16
EP0441460B1 (de) 1996-11-20
ATE145392T1 (de) 1996-12-15
JPH08176024A (ja) 1996-07-09
WO1988001994A1 (en) 1988-03-24
DE3774872D1 (de) 1992-01-09
EP0282579A1 (de) 1988-09-21
US5012022A (en) 1991-04-30
EP0282579B1 (de) 1991-11-27
JPH082803B2 (ja) 1996-01-17
EP0282579A4 (de) 1989-04-12
JPH08176023A (ja) 1996-07-09
ATE69790T1 (de) 1991-12-15
US5012023A (en) 1991-04-30
JPH01501151A (ja) 1989-04-20
CA1292754C (en) 1991-12-03
JPH1059875A (ja) 1998-03-03
EP0441460A2 (de) 1991-08-14
JP2709580B2 (ja) 1998-02-04
EP0441460A3 (en) 1992-01-02
JP2709579B2 (ja) 1998-02-04
US4721823A (en) 1988-01-26
JPH07324043A (ja) 1995-12-12

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