GB1168411A - Lubricating Oil Compositions - Google Patents
Lubricating Oil CompositionsInfo
- Publication number
- GB1168411A GB1168411A GB01175/68A GB1117568A GB1168411A GB 1168411 A GB1168411 A GB 1168411A GB 01175/68 A GB01175/68 A GB 01175/68A GB 1117568 A GB1117568 A GB 1117568A GB 1168411 A GB1168411 A GB 1168411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lubricating oil
- calcium
- product
- mole ratio
- alkyl
- 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
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
- C10M159/20—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products
- C10M159/22—Reaction mixtures having an excess of neutralising base, e.g. so-called overbasic or highly basic products containing phenol radicals
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
-
- 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
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/046—Overbasedsulfonic acid salts
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
- C10M2219/088—Neutral salts
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
- C10M2219/089—Overbased salts
-
- 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
- C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2221/02—Macromolecular compounds obtained by reactions of monomers involving only carbon-to-carbon unsaturated bonds
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/047—Thioderivatives not containing metallic elements
-
- 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
- C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
-
- 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
- C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2225/02—Macromolecular compounds from phosphorus-containg monomers, obtained by reactions involving only carbon-to-carbon unsaturated bonds
-
- 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
- C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2225/04—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions obtained by phosphorisation of macromolecualr compounds not containing phosphorus in the monomers
- C10M2225/041—Hydrocarbon polymers
-
- 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
- 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
- C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
-
- 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
-
- 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)
Abstract
1,168,411. Lubricants. TEXACO DEVELOPMENT CORP. 7 March, 1968 [20 March, 1967], No. 11175/68. Heading C5F. A lubricant comprises a hydrocarbon lubricating oil containing 0À1-90 wt. per cent of a 20-70% hydrolysed overbased sulphurized calcium alkylphenolate having a calcium metal ratio of from 1À1 to 3À5 wherein said hydrolysed product is prepared by contacting in a hydrocarbon lubricating oil (a) a sulphurized normal calcium C 4 -C 100 alkylphenolate having a sulphur content of 0À1-10 wt. per cent and a calcium metal ratio of 1 with (b) a calcium alkoxy-alkoxide of formula Ca(OAOR<SP>1</SP>) 2 where A is a C 1 -C 6 alkylene radical and R<SP>1</SP> is C 1 -C 25 alkyl, at 10-200‹ C. in a mole ratio of (b) : (a) of 1 : 0À1 to 1 : 2À5 and thereafter contacting the product with water at 10-250‹ C. in the mole ratio of water: (b) of 100 : 1 to 0À2 : :1 until 20-70% of the overbased product is hydrolysed and thereafter removing any residual water. The lubricating oil may be mineral or synthetic, e.g. polypropylene or polyisobutylene. The sulphurized normal calcium alkyl phenolate may be prepared by contacting in said lubricating oil (c) a C 4 -C 100 alkyl-phenol with (b) above in a mole ratio of (c) : (b) of about 2 : 1 at 10-250‹ C. and thereafter reacting the product with sulphur in a mole ratio of sulphur: (c) of 0À15 : 1 to 8:1 at 75-250‹ C. The lubricating oil compositions may also contain the ethylene oxide reaction product of polybutene thiophosphonic acid, zinc di-C 10 -C 12 alkylbenzene dithiophosphate, zinc isopropyl 1,3-dimethylbutyl dithiophosphate, overbased calcium alkyl benzene sulphonate, a copolymer of dodecyl and octadecyl methacrylates and dimethyl silicone.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62419367A | 1967-03-20 | 1967-03-20 | |
US64036267A | 1967-05-22 | 1967-05-22 | |
US85575869A | 1969-09-05 | 1969-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1168411A true GB1168411A (en) | 1969-10-22 |
Family
ID=27417349
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB01175/68A Expired GB1168411A (en) | 1967-03-20 | 1968-03-07 | Lubricating Oil Compositions |
GB01176/68A Expired GB1164417A (en) | 1967-03-20 | 1968-03-07 | Sulphurized Calcium Alkylphenolate Lubricant Compositions |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB01176/68A Expired GB1164417A (en) | 1967-03-20 | 1968-03-07 | Sulphurized Calcium Alkylphenolate Lubricant Compositions |
Country Status (4)
Country | Link |
---|---|
US (3) | US3474035A (en) |
BE (2) | BE712521A (en) |
DE (2) | DE1769011A1 (en) |
GB (2) | GB1168411A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0417962A1 (en) * | 1989-09-15 | 1991-03-20 | Texaco Development Corporation | Process for the preparation of sulfurized overbased phenate detergents |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474035A (en) * | 1967-03-20 | 1969-10-21 | Texaco Inc | Lubricating oil containing overbased sulfurized calcium alkylphenolate |
US3741896A (en) * | 1970-12-11 | 1973-06-26 | Chevron Res | Basic alkylene amine and sulfur bridged alkylphenoxides for use in lubricating oils |
US3793201A (en) * | 1970-12-28 | 1974-02-19 | Lubrizol Corp | Stabilized basic magnesium sulfonate compositions |
US3755170A (en) * | 1971-05-17 | 1973-08-28 | Continental Oil Co | Preparation of highly basic alkylphenates and sulfurized alkyphenates |
US3897352A (en) * | 1973-12-21 | 1975-07-29 | Texaco Inc | Sulfurized nitrated alkylphenol salts and lubricant compositions thereof |
US3969235A (en) * | 1974-08-26 | 1976-07-13 | Texaco Inc. | Sulfurized calcium alkylphenolate compositions |
IT1059547B (en) * | 1975-12-24 | 1982-06-21 | Liquichimica Robassomero Spa | PROCEDURE FOR THE PREPARATION OF ADDITIVES FOR LUBRICANT OILS |
US4171269A (en) * | 1976-12-27 | 1979-10-16 | Texaco Inc. | Sulfurized lubricant composition |
US4171270A (en) * | 1976-12-27 | 1979-10-16 | Texaco Inc. | Sulfurized overbased calcium alkylphenolate lubricant composition |
US4169799A (en) * | 1976-12-27 | 1979-10-02 | Texaco Inc. | Lubricating oil composition |
US4320016A (en) * | 1979-09-24 | 1982-03-16 | Texaco Inc. | Carbon dioxide-blown overbased calcium alkylphenolate lubricating compositions |
US4282107A (en) * | 1979-09-26 | 1981-08-04 | Texaco Inc. | Diesel crankcase lubricant composition |
US4608184A (en) * | 1985-07-12 | 1986-08-26 | Amoco Corporation | Phenate process and composition improvement |
US5256319A (en) * | 1989-03-30 | 1993-10-26 | Institut Francais Du Petrole | New thiophosphoretted compounds, their preparation and their use as additives for lubricants |
FR2645168B1 (en) * | 1989-03-30 | 1993-02-05 | Inst Francais Du Petrole | NOVEL THIOPHOSPHORUS COMPOUNDS, THEIR PREPARATION AND THEIR USE AS LUBRICANT ADDITIVES |
US8198225B2 (en) * | 2007-11-29 | 2012-06-12 | Chevron Oronite Company Llc | Sulfurized metal alkyl phenate compositions having a low alkyl phenol content |
WO2015153160A1 (en) * | 2014-04-04 | 2015-10-08 | The Lubrizol Corporation | Method for preparing a sulfurized alkaline earth metal dodecylphenate |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289795A (en) * | 1938-10-14 | 1942-07-14 | Standard Oil Dev Co | Lubricant |
US2680096A (en) * | 1951-02-12 | 1954-06-01 | California Research Corp | Process for preparing sulfurized polyvalent metal phenates |
US2870134A (en) * | 1956-12-12 | 1959-01-20 | Texas Co | Preparation of calcium phenolates and sulfurized derivatives thereof |
US2916454A (en) * | 1957-02-18 | 1959-12-08 | Socony Mobil Oil Co Inc | Preparation of complex carbonated metal salts of alkyl phenol sulfides and mineral oil fractions containing the same |
IT630213A (en) * | 1959-05-11 | |||
US3150088A (en) * | 1962-03-23 | 1964-09-22 | Continental Oil Co | Highly basic calcium-containing additive agent |
US3425941A (en) * | 1966-09-26 | 1969-02-04 | Texaco Inc | Method of preparing calcium alkylphenolates |
US3474035A (en) * | 1967-03-20 | 1969-10-21 | Texaco Inc | Lubricating oil containing overbased sulfurized calcium alkylphenolate |
-
1967
- 1967-03-20 US US624193A patent/US3474035A/en not_active Expired - Lifetime
- 1967-05-22 US US640362A patent/US3528917A/en not_active Expired - Lifetime
-
1968
- 1968-03-07 GB GB01175/68A patent/GB1168411A/en not_active Expired
- 1968-03-07 GB GB01176/68A patent/GB1164417A/en not_active Expired
- 1968-03-20 BE BE712521D patent/BE712521A/xx unknown
- 1968-03-20 BE BE712522D patent/BE712522A/xx unknown
- 1968-03-20 DE DE19681769011 patent/DE1769011A1/en active Pending
- 1968-03-20 DE DE1769012A patent/DE1769012C3/en not_active Expired
-
1969
- 1969-09-05 US US855758A patent/US3549534A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0417962A1 (en) * | 1989-09-15 | 1991-03-20 | Texaco Development Corporation | Process for the preparation of sulfurized overbased phenate detergents |
Also Published As
Publication number | Publication date |
---|---|
US3474035A (en) | 1969-10-21 |
DE1769012C3 (en) | 1975-06-12 |
DE1769012B2 (en) | 1974-10-24 |
GB1164417A (en) | 1969-09-17 |
US3549534A (en) | 1970-12-22 |
DE1769012A1 (en) | 1972-05-04 |
DE1769011A1 (en) | 1971-06-09 |
BE712522A (en) | 1968-09-20 |
BE712521A (en) | 1968-09-20 |
US3528917A (en) | 1970-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |