BR8505828A - Dispersantes tratados com carbonato - Google Patents

Dispersantes tratados com carbonato

Info

Publication number
BR8505828A
BR8505828A BR8505828A BR8505828A BR8505828A BR 8505828 A BR8505828 A BR 8505828A BR 8505828 A BR8505828 A BR 8505828A BR 8505828 A BR8505828 A BR 8505828A BR 8505828 A BR8505828 A BR 8505828A
Authority
BR
Brazil
Prior art keywords
carbonate
dispersants
treated
dispersants treated
Prior art date
Application number
BR8505828A
Other languages
English (en)
Inventor
Robert H Wollenberg
Original Assignee
Chevron Res
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 Chevron Res filed Critical Chevron Res
Publication of BR8505828A publication Critical patent/BR8505828A/pt

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
    • C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
    • C10M159/12—Reaction products
    • C10M159/16—Reaction products obtained by Mannich reactions
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/16—Amides; Imides
    • 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
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/52—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of 30 or more atoms
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/32—Esters of carbonic acid
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/022—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group
    • C10M2217/023—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amino group the amino group containing an ester bond
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/02—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/024—Macromolecular compounds obtained from nitrogen containing monomers by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an amido or imido group
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
    • 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
    • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/061—Esters derived from boron
    • 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
    • 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
    • C10N2040/25—Internal-combustion engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol fueled engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • 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
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines
    • 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
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR8505828A 1984-11-21 1985-11-20 Dispersantes tratados com carbonato BR8505828A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/673,963 US4585566A (en) 1984-11-21 1984-11-21 Carbonate treated dispersants

Publications (1)

Publication Number Publication Date
BR8505828A true BR8505828A (pt) 1986-08-12

Family

ID=24704799

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8505828A BR8505828A (pt) 1984-11-21 1985-11-20 Dispersantes tratados com carbonato

Country Status (6)

Country Link
US (1) US4585566A (pt)
EP (1) EP0182657B1 (pt)
JP (1) JPS61137844A (pt)
BR (1) BR8505828A (pt)
CA (1) CA1246093A (pt)
DE (1) DE3579117D1 (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747965A (en) * 1985-04-12 1988-05-31 Chevron Research Company Modified succinimides
US4802893A (en) * 1984-07-20 1989-02-07 Chevron Research Company Modified Succinimides
US4747850A (en) * 1984-07-20 1988-05-31 Chevron Research Company Modified succinimides in fuel composition
US4702851A (en) * 1984-08-22 1987-10-27 Chevron Research Company Dispersant additives for lubricating oils and fuels
US4755312A (en) * 1984-11-21 1988-07-05 Chevron Research Company Carbonate treated dispersants
US4729842A (en) * 1984-11-21 1988-03-08 Chevron Research Company Carbonate treated dispersants
US4746447A (en) * 1986-01-10 1988-05-24 Chevron Research Company Carbonate treated hydrocarbyl-substituted polyamines
US4713188A (en) * 1986-01-10 1987-12-15 Chevron Research Company Carbonate treated hydrocarbyl-substituted amides
US4695391A (en) * 1986-01-17 1987-09-22 Chevron Research Company Modified succinimides (IX)
US4710201A (en) * 1986-09-04 1987-12-01 Chevron Research Company Modified succinimides (IX)
US5032320A (en) * 1986-10-07 1991-07-16 Exxon Chemical Patents Inc. Lactone modified mono- or dicarboxylic acid based adduct dispersant compositions
US4866139A (en) * 1986-10-07 1989-09-12 Exxon Chemical Patents Inc. Lactone modified, esterified dispersant additives useful in oleaginous compositions
US4954277A (en) * 1986-10-07 1990-09-04 Exxon Chemical Patents Inc. Lactone modified, esterified or aminated additives useful in oleaginous compositions and compositions containing same
US4954276A (en) * 1986-10-07 1990-09-04 Exxon Chemical Patents Inc. Lactone modified adducts or reactants and oleaginous compositions containing same
US4866135A (en) * 1986-10-07 1989-09-12 Exxon Chemical Patents Inc. Heterocyclic amine terminated, lactone modified, aminated viscosity modifiers of improved dispersancy
US4866142A (en) * 1986-10-07 1989-09-12 Exxon Chemical Patents Inc. Lactone modified polymeric amines useful as oil soluble dispersant additives
US4866140A (en) * 1986-10-07 1989-09-12 Exxon Chemical Patents Inc. Lactone modified adducts or reactants and oleaginous compositions containing same
US4906394A (en) * 1986-10-07 1990-03-06 Exxon Chemical Patents Inc. Lactone modified mono-or dicarboxylic acid based adduct dispersant compositions
US4936866A (en) * 1986-10-07 1990-06-26 Exxon Chemical Patents Inc. Lactone modified polymeric amines useful as oil soluble dispersant additives
US4866141A (en) * 1986-10-07 1989-09-12 Exxon Chemical Patents Inc. Lactone modified, esterfied or aminated additives useful in oleaginous compositions and compositions containing same
US4820432A (en) * 1987-07-24 1989-04-11 Exxon Chemical Patents Inc. Lactone-modified, Mannich base dispersant additives useful in oleaginous compositions
US4971711A (en) * 1987-07-24 1990-11-20 Exxon Chemical Patents, Inc. Lactone-modified, mannich base dispersant additives useful in oleaginous compositions
US4913830A (en) * 1987-07-24 1990-04-03 Exxon Chemical Patents Inc. Lactone-modified, mannich base dispersant additives useful in oleaginous compositions
US4828742A (en) * 1987-07-24 1989-05-09 Exxon Chemical Patents, Inc. Lactone-modified, mannich base dispersant additives useful in oleaginous compositions
US5055607A (en) * 1988-09-09 1991-10-08 Chevron Research Company Long chain aliphatic hydrocarbyl amine additives having an oxy-carbonyl connecting group
DE3838752A1 (de) * 1988-11-16 1990-05-17 Bayer Ag Verfahren zur herstellung von cyclischen kohlensaeureestern
US5185103A (en) * 1991-12-23 1993-02-09 Ppg Industries, Inc. Intumescent flame retardant composition
US5334321A (en) * 1993-03-09 1994-08-02 Chevron Research And Technology Company, A Division Of Chevron U.S.A. Inc. Modified high molecular weight succinimides
US5863302A (en) * 1997-04-18 1999-01-26 Mobil Oil Corporation Friction reducing additives for fuels and lubricants
EP1020457A1 (en) 1999-01-14 2000-07-19 Polymate Ltd. The method of synthesis polyfunctional polyclocarbonate oligomers and polymers formed therefrom
GB0109708D0 (en) * 2001-04-20 2001-06-13 Avecia Ltd Dispersants
US20040030176A1 (en) * 2001-09-05 2004-02-12 Ohrbom Walter H. Gamma hydroxy carbamate compounds and method of making and using the same
US20100160198A1 (en) * 2008-12-18 2010-06-24 Chevron Oronite Company Llc Friction modifiers and/or wear inhibitors derived from hydrocarbyl amines and cyclic carbonates
CN110028410A (zh) * 2018-01-11 2019-07-19 宜昌天鼎新材料科技有限公司 碳酸酯化多元醇及其丙烯酸酯型化合物

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GB689705A (en) * 1950-09-15 1953-04-01 Saint Gobain Glycol carbamates and processes for the manufacture thereof
US2802022A (en) * 1954-12-15 1957-08-06 American Cyanamid Co Method of preparing a polyurethane
US2844449A (en) * 1955-12-23 1958-07-22 Texas Co Fuels containing a deposit-control additive
US2921955A (en) * 1956-12-11 1960-01-19 Texaco Inc Carbonate derivatives of ethanolamines
NL264636A (pt) * 1960-05-11
GB1053340A (pt) * 1963-10-14 1900-01-01
GB1053577A (pt) * 1963-11-01
US3216936A (en) * 1964-03-02 1965-11-09 Lubrizol Corp Process of preparing lubricant additives
US3652240A (en) * 1970-03-26 1972-03-28 Texaco Inc Detergent motor fuel composition
US4322305A (en) * 1978-11-13 1982-03-30 Chevron Research Company Deposit control additives and their fuel compositions
US4275006A (en) * 1978-12-04 1981-06-23 Chevron Research Company Process of preparing dispersant lubricating oil additives
US4482464A (en) * 1983-02-14 1984-11-13 Texaco Inc. Hydrocarbyl-substituted mono- and bis-succinimide having polyamine chain linked hydroxyacyl radicals and mineral oil compositions containing same
US4460381A (en) * 1983-05-11 1984-07-17 Texaco Inc. Process for stabilizing fuels and stabilized fuel produced thereby
US4490154A (en) * 1983-05-20 1984-12-25 Texaco Inc. Fuels containing an alkenylsuccinyl polyglycolcarbonate ester as a deposit-control additive
US4501597A (en) * 1984-07-02 1985-02-26 Texaco Inc. Detergent fuel composition containing alkenylsuccinimide oxamides
US4612132A (en) * 1984-07-20 1986-09-16 Chevron Research Company Modified succinimides

Also Published As

Publication number Publication date
JPH0311319B2 (pt) 1991-02-15
EP0182657A3 (en) 1987-05-06
US4585566A (en) 1986-04-29
EP0182657A2 (en) 1986-05-28
EP0182657B1 (en) 1990-08-08
DE3579117D1 (de) 1990-09-13
JPS61137844A (ja) 1986-06-25
CA1246093A (en) 1988-12-06

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 20/11/2000

B15K Others concerning applications: alteration of classification

Ipc: C10M 159/16 (2006.01), C10M 133/04 (2006.0