WO1994018288A1 - Shear-stable viscosity improver for lubricating oils - Google Patents
Shear-stable viscosity improver for lubricating oils Download PDFInfo
- Publication number
- WO1994018288A1 WO1994018288A1 PCT/US1994/001322 US9401322W WO9418288A1 WO 1994018288 A1 WO1994018288 A1 WO 1994018288A1 US 9401322 W US9401322 W US 9401322W WO 9418288 A1 WO9418288 A1 WO 9418288A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- viscosity
- polymethacrylate
- oil
- lubricating
- weight
- Prior art date
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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving 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
- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/10—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
- C10M145/12—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 monocarboxylic
- C10M145/14—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
- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/04—Fatty oil fractions
-
- 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
Definitions
- the objective of the invention is, above all, to provide a new viscosity improver for lubricating oils, which, besides the characteristics which are conventionally sought after, namely improving the viscosity index of the said oils, exhibits a markedly improved shear strength when compared with improvers that are already known.
- Procedure CEC-L-37-T-85 is a test procedure promulgated by the Coordinating European Council (CEC) for the Development of Performance Tests for Lubricants and Engine Fuels. This procedure is used to determine shear stability of polymer-containing oils employing the FZG (Forschungsstelle f ⁇ r Zahnraderund Getriebebau) apparatus. Specifically, the purpose of the test is to determine the permanent viscosity loss of polymer- containing oils when a sample is mechanically stressed under the test conditions described.
- CEC Coordinating European Council
- the objective of the invention is to provide a viscosity improver of the kind in question, which is not only capable of imparting a VIE of at least 155 to a lubricating oil exhibiting, before incorporation of the said improver, a viscosity at 100° C of 4.8 to 5.5 mm 2 /s and a VIE of 85 to 100, but which, in addition, exhibits a shear strength such that the relative drop in viscosity after four hours in the "VKA” test or after twenty hours in the "FZG” test is lower than 13 %, preferably lower than 12 % and, still more preferably, lower than 11 % .
- Solution polymerization is preferred, especially in mineral oil diluent.
- Free radical initiation is preferred.
- a typical procedure for preparing the polymers of this invention is to charge at room-temperature about one third of the monomers, diluent, chain transfer agent and a portion of a peroxide initiator.
- the mixture is heated to about 90 °C at which time heating is discontinued and the temperature is allowed to rise exothermically, moderated with cold water cooling, if desired, to about 125 °C.
- cold water cooling is applied, if desired, until the temperature drops to about 90 °C at which time any external cooling is discontinued.
- Viscosity improver E is also obtained by copolymerization of a mixture of
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
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69432580T DE69432580T2 (en) | 1993-02-04 | 1994-02-04 | SHER-RESISTANT, VISCOSITY IMPROVERS FOR LUBRICATING OILS |
JP6518267A JPH07509023A (en) | 1993-02-04 | 1994-02-04 | Shear stable viscosity modifier for lubricating oils |
BR9403779A BR9403779A (en) | 1993-02-04 | 1994-02-04 | Polymethacrylate improved viscosity composition lubricating oil composition and method for improving the viscosity of a lubricant |
AU61712/94A AU672290B2 (en) | 1993-02-04 | 1994-02-04 | Shear-stable viscosity improver for lubricating oils |
EP94908725A EP0637332B1 (en) | 1993-02-04 | 1994-02-04 | Shear-stable viscosity improver for lubricating oils |
KR1019940702704A KR950700392A (en) | 1993-02-04 | 1994-08-05 | Shear-stable viscosity improver for lubricating oils |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9301229A FR2701036B1 (en) | 1993-02-04 | 1993-02-04 | Additive with shear stable viscosity for lubricating oils. |
FR93/01229 | 1993-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994018288A1 true WO1994018288A1 (en) | 1994-08-18 |
Family
ID=9443722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1994/001322 WO1994018288A1 (en) | 1993-02-04 | 1994-02-04 | Shear-stable viscosity improver for lubricating oils |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0637332B1 (en) |
JP (1) | JPH07509023A (en) |
KR (1) | KR950700392A (en) |
AU (1) | AU672290B2 (en) |
BR (1) | BR9403779A (en) |
CA (1) | CA2117497A1 (en) |
DE (1) | DE69432580T2 (en) |
FR (1) | FR2701036B1 (en) |
MX (1) | MX9400882A (en) |
WO (1) | WO1994018288A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0937769A1 (en) * | 1998-02-18 | 1999-08-25 | The Lubrizol Corporation | Viscosity improvers for lubricating oil compositions |
US6124249A (en) * | 1998-12-22 | 2000-09-26 | The Lubrizol Corporation | Viscosity improvers for lubricating oil compositions |
WO2019077105A1 (en) | 2017-10-20 | 2019-04-25 | Total Marketing Services | Composition for cooling and lubricating a drive system of a vehicle |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5817606A (en) * | 1996-08-08 | 1998-10-06 | Rohm And Haas Company | Viscosity index improving additives for phosphate ester-containing hydraulic fluids |
DE102004021778A1 (en) * | 2004-04-30 | 2005-12-08 | Rohmax Additives Gmbh | Use of polyalkyl (meth) acrylates in lubricating oil compositions |
JP5246992B2 (en) * | 2005-06-21 | 2013-07-24 | 三洋化成工業株式会社 | Viscosity index improver and lubricating oil composition |
DE102005041528A1 (en) | 2005-08-31 | 2007-03-01 | Rohmax Additives Gmbh | Multi-arm star-shaped polymer for use as lubricating oil additive, e.g. viscosity modifier or dispersant, has at least three arms containing units derived from esters of higher alkanols and unsaturated carboxylic acids |
DE102010028195A1 (en) | 2010-04-26 | 2011-10-27 | Evonik Rohmax Additives Gmbh | Lubricant for transmissions |
CN109071736B (en) | 2016-05-13 | 2021-08-10 | 赢创运营有限公司 | Graft copolymers based on a polyolefin backbone and methacrylate side chains |
US11685874B2 (en) | 2019-12-16 | 2023-06-27 | Infineum International Limited | High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same |
US11384311B2 (en) | 2019-12-16 | 2022-07-12 | Infineum International Limited | High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same |
US11365273B2 (en) | 2019-12-16 | 2022-06-21 | Infineum International Limited | High viscosity index comb polymer viscosity modifiers and methods of modifying lubricant viscosity using same |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB618691A (en) * | 1946-10-02 | 1949-02-25 | Standard Oil Dev Co | Improvements in or relating to acrylate ester polymers |
FR1390228A (en) * | 1962-11-13 | 1965-02-26 | Rohm & Haas | Lubricating compositions based on an oil and a polymer |
GB1001474A (en) * | 1960-12-30 | 1965-08-18 | Monsanto Co | Methacrylate polymers, their production and use |
US3417021A (en) * | 1966-12-30 | 1968-12-17 | Exxon Research Engineering Co | Mineral lubricating oil containing a polyester pour depressant |
GB1163807A (en) * | 1967-08-30 | 1969-09-10 | Shell Int Research | Polyalkyl Methacrylates suitable as Luboil Additives |
GB1172697A (en) * | 1966-10-21 | 1969-12-03 | Drayton Res Ltd | Oil Soluble Graft Copolymers. |
FR1602160A (en) * | 1968-12-23 | 1970-10-19 | Hydraulic and lubricating fluids having - improved flow and shear preps | |
FR2346380A1 (en) * | 1976-04-02 | 1977-10-28 | Texaco Development Corp | NEW POLY (ALKYL ACRYLATES) |
EP0225598A2 (en) * | 1985-12-13 | 1987-06-16 | Röhm Gmbh | High shear-stable multifunctional lubricating oil with an improved viscosity index |
WO1989001507A1 (en) * | 1987-08-19 | 1989-02-23 | Pennzoil Products Company | Methacrylate pour point depressants and compositions |
US5112509A (en) * | 1988-12-22 | 1992-05-12 | Texaco, Inc. | Non-dispersant, shear-stabilizing, and wear-inhibiting viscosity index improver |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1302679A (en) * | 1961-08-22 | 1962-08-31 | Basf Ag | Product to improve the properties of lubricants |
JPS5148153B2 (en) * | 1972-09-30 | 1976-12-18 |
-
1993
- 1993-02-04 FR FR9301229A patent/FR2701036B1/en not_active Expired - Fee Related
-
1994
- 1994-02-03 MX MX9400882A patent/MX9400882A/en not_active IP Right Cessation
- 1994-02-04 AU AU61712/94A patent/AU672290B2/en not_active Ceased
- 1994-02-04 JP JP6518267A patent/JPH07509023A/en not_active Ceased
- 1994-02-04 WO PCT/US1994/001322 patent/WO1994018288A1/en active IP Right Grant
- 1994-02-04 EP EP94908725A patent/EP0637332B1/en not_active Expired - Lifetime
- 1994-02-04 CA CA002117497A patent/CA2117497A1/en not_active Abandoned
- 1994-02-04 DE DE69432580T patent/DE69432580T2/en not_active Expired - Fee Related
- 1994-02-04 BR BR9403779A patent/BR9403779A/en not_active Application Discontinuation
- 1994-08-05 KR KR1019940702704A patent/KR950700392A/en not_active Application Discontinuation
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB618691A (en) * | 1946-10-02 | 1949-02-25 | Standard Oil Dev Co | Improvements in or relating to acrylate ester polymers |
GB1001474A (en) * | 1960-12-30 | 1965-08-18 | Monsanto Co | Methacrylate polymers, their production and use |
FR1390228A (en) * | 1962-11-13 | 1965-02-26 | Rohm & Haas | Lubricating compositions based on an oil and a polymer |
GB1172697A (en) * | 1966-10-21 | 1969-12-03 | Drayton Res Ltd | Oil Soluble Graft Copolymers. |
US3417021A (en) * | 1966-12-30 | 1968-12-17 | Exxon Research Engineering Co | Mineral lubricating oil containing a polyester pour depressant |
GB1163807A (en) * | 1967-08-30 | 1969-09-10 | Shell Int Research | Polyalkyl Methacrylates suitable as Luboil Additives |
FR1602160A (en) * | 1968-12-23 | 1970-10-19 | Hydraulic and lubricating fluids having - improved flow and shear preps | |
FR2346380A1 (en) * | 1976-04-02 | 1977-10-28 | Texaco Development Corp | NEW POLY (ALKYL ACRYLATES) |
EP0225598A2 (en) * | 1985-12-13 | 1987-06-16 | Röhm Gmbh | High shear-stable multifunctional lubricating oil with an improved viscosity index |
WO1989001507A1 (en) * | 1987-08-19 | 1989-02-23 | Pennzoil Products Company | Methacrylate pour point depressants and compositions |
US5112509A (en) * | 1988-12-22 | 1992-05-12 | Texaco, Inc. | Non-dispersant, shear-stabilizing, and wear-inhibiting viscosity index improver |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0937769A1 (en) * | 1998-02-18 | 1999-08-25 | The Lubrizol Corporation | Viscosity improvers for lubricating oil compositions |
US6124249A (en) * | 1998-12-22 | 2000-09-26 | The Lubrizol Corporation | Viscosity improvers for lubricating oil compositions |
US6271184B1 (en) | 1998-12-22 | 2001-08-07 | The Lubrizol Corporation | Viscosity improvers for lubricating oil-compositions |
WO2019077105A1 (en) | 2017-10-20 | 2019-04-25 | Total Marketing Services | Composition for cooling and lubricating a drive system of a vehicle |
Also Published As
Publication number | Publication date |
---|---|
KR950700392A (en) | 1995-01-16 |
JPH07509023A (en) | 1995-10-05 |
AU672290B2 (en) | 1996-09-26 |
FR2701036A1 (en) | 1994-08-05 |
FR2701036B1 (en) | 1995-04-21 |
EP0637332B1 (en) | 2003-05-02 |
BR9403779A (en) | 1999-06-15 |
EP0637332A1 (en) | 1995-02-08 |
DE69432580T2 (en) | 2004-04-08 |
AU6171294A (en) | 1994-08-29 |
CA2117497A1 (en) | 1994-10-04 |
MX9400882A (en) | 1994-08-31 |
DE69432580D1 (en) | 2003-06-05 |
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