EP0000697B1 - Gelförmige Schmiermittelzusammensetzung bestehend aus Oel und Polymethylpenten - Google Patents
Gelförmige Schmiermittelzusammensetzung bestehend aus Oel und Polymethylpenten Download PDFInfo
- Publication number
- EP0000697B1 EP0000697B1 EP78100269A EP78100269A EP0000697B1 EP 0000697 B1 EP0000697 B1 EP 0000697B1 EP 78100269 A EP78100269 A EP 78100269A EP 78100269 A EP78100269 A EP 78100269A EP 0000697 B1 EP0000697 B1 EP 0000697B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- temperature
- lubricating
- pmp
- weight
- 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
- 239000000203 mixture Substances 0.000 title claims description 57
- 229920000306 polymethylpentene Polymers 0.000 title claims description 36
- 239000011116 polymethylpentene Substances 0.000 title claims description 36
- 230000001050 lubricating effect Effects 0.000 title claims description 33
- 238000000034 method Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 45
- 239000000499 gel Substances 0.000 description 27
- 239000000314 lubricant Substances 0.000 description 14
- 239000004698 Polyethylene Substances 0.000 description 13
- 229920000573 polyethylene Polymers 0.000 description 13
- -1 polyethylene Polymers 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000004519 grease Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 150000005690 diesters Chemical class 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000006069 physical mixture Substances 0.000 description 2
- 239000010913 used oil Substances 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
-
- 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
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/04—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a macromolecular organic 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
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/08—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aliphatic monomer having more than 4 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
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- 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
- C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
-
- 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
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
Definitions
- Scott and Swartz U.S. Patent 3,913,992 issued October 21, 1975, discloses a method and apparatus employing a mass of grease placed on a dispensing surface on a rotating member in such a way that the centrifugal force of the grease against the dispensing surface causes oil to be released from the grease under use conditions.
- the DOS 1,900,168 teaches a process for thickening oil by heating a specified dispersion of a polymer in oil to a temperature of 130-170°C.
- the size of the particles dispersed shall be in the range 0,02-0,5 microns. This process does not give any solid gel, but results in a highly viscous grease.
- a process for the production of a solid lubricating gel which is characterized in blending 50-10% by weight of a polymethylpentene having an average molecular weight of 3.5 millions and a particle size of 105-250 microns with 50-90% by weight and an oil of lubricating viscosity, heating said blend at a temperature in the range of 10-50°C above the initial softening temperature of the polymer until the blend becomes transparent and sticky, and cooling the blend.
- the oil is preferably a synthetic hydrocarbon oil with a viscosity of 15 to 300 mm 2 /s at 38°C.
- the oil content is preferably in the range of 65-75% by weight, and the polymethylpentene content is in the range of 35-25% by weight.
- the most preferred ratio on the components is an oil content of 70% by weight and a polymethylpentene content of 30% by weight.
- the oil shall then have a viscosity of 30-170 mm 2 /s at 38°C and the polymethylpentene an average molecular weight of 4 millions.
- compositions obtained through the process according to the invention are provided in the form of firm, tough, solid gels having an oily surface provided by the exudation of oil from the gels.
- compositions of the invention are made from synthetic hydrocarbon oils having a viscosity in the range from about 20 to about 260 mm 2 /s measured at a temperature of 38°C (100°F).
- Other known lubricating oils of comparable viscosity may also be employed including the diester oils described in Military Specifications MIL-L-23699B and MIL-L-7808G. These refer to aircraft turbine engine lubricants. Products qualified under these specifications are (respectively) Exxon ETO 2380 and Exxon ETO 2389.
- Naturally occurring mineral oils may also be employed, but less desirably, since they tend to deteriorate at the high temperatures employed in the preparation of the new lubricating compositions.
- Especially preferred compositions are obtained from synthetic hydrocarbon oils having a viscosity in the range from about 30 to about 170 mm 2 /s.
- the polymeric component of the new compositions is known in commerce as polymethylpentene (hereinafter PMP) and generally has an average molecular weight in the range from about 3 to about 5 million; polymer having an average molecular weight of about 4 million having been found to provide excellent products.
- PMP polymethylpentene
- This material is available and useful in finely particulate form, i.e. about 105 to 250 microns.
- the PMP is simply blended with the oil in a conventional blender to form a physical mixture.
- this mixture may contain about 50 to about 90% oil and about 50 to about 10% PMP, based on the weight of the total mixture.
- Preferred proportions are about 65 to about 75% oil and about 35 to about 25% PMP; especially desirable products contain about 70% oil and about 30% PMP in the mixture and in the final product.
- the physical mixture of oil and PMP is then introduced to a mold or into the cavity of a bearing or other article in which it is desired to produce a lubricating mass in situ.
- the mixture is then cured by heating it to a temperature in the range from about 220°C (428°F) to about 260°C (500°F); the exact temperature in the range from about 10°C (18°F) to about 50°C (90°F) above the initial softening temperature of the particular PMP polymer in the mixture, depending on the liquid phase used.
- This curing temperature is maintained for about 45 to about 75 minutes until the mixture becomes transparent and sticky. This end point may be determined visually, by trial and error, or by testing the mixture with a metal rod to which the mixture will adhere when properly cured.
- the final product is then obtained by allowing the cured mixture to cool whereupon it forms a firm, tough, solid gel conforming in shape to the mold or cavity of a bearing or other article in which it was heated.
- the shaped lubricating mass is formed in situ in a bearing, for example, it is used in that form.
- Molded shaped articles may be shaped further, if desired, by conventional cutting, abrading or other procedures.
- the resulting composition or article has an oily surface provided by the exudation of oil from the gel. This exudation of oil continues until the oil supply is exhausted, thus providing prolonged lubrication of any surface in contact with the gel.
- the new compositions have been found capable of withstanding prolonged use at operating temperatures of up to 145°C (293°F) and, for shorter periods, at up to 160°C (320°F).
- the oil-polyethylene gel lubricating compositions of the prior art are inoperable at such elevated temperatures, since they become sticky and are discharged from bearings, leaving a dry bearing, at operating temperatures of only about 105°C (221°F) to 110°C (230°F). It will be apparent to those skilled in the art, therefore, that the new PMP containing lubricant compositions and articles constitute a distinct improvement over the prior art for use at operating temperatures above 105°C (221°F).
- the physical characteristics of the gels of the present invention vary somewhat depending upon the average molecular weight of the PMP and the proportion of that material in the final lubricating composition. Increasing the molecular weight and concentration of PMP in the composition increases the firmness, toughness and rigidity of the gel. These characteristics are correspondingly decreased by decreasing the molecular weight and concentration of the PMP in the composition. It will be seen, therefore, that by varying the molecular weight and concentration of the PMP, lubricating compositions can be produced which are especially adapted for use in particular application.
- a shaped mass of lubricating gel was prepared containing 70% oil and 30% PMP by weight of the total composition. More specifically 40 grams of PMP was mixed with 93 grams of lubricating oil in a conventional blender for about one minute until a homogeneous mixture was obtained.
- the PMP was in the form of a 105-215 microns powder which is commercially available under the trade name "TPX Polymer” from Mitsui Petrochemical Inudstries, Mitsui Et Company Incorporated. This PMP has an average molecular weight of 4 million.
- the oil was a synthetic hydrocarbon oil available from Mobil Oil Corporation under the trade name "SHC624" and had a viscosity of 33 m 2 /s at 38°C (100°F).
- the oil-PMP mixture was charged to suitable mold with provision for heating, heated to 218°C (425°F) and maintained at that temperature for 60 minutes. The end is reached when the mixture becomes transparent and self-cohesive.
- Example 1 The general procedure of Example 1 was repeated with the exception that 10% PMP was mixed with 90% Mobil SHC624. The resulting shaped lubricating gel mass was similar to that obtained in Example 1 but was much more flexible due to the decreased percentage of polymer present.
- Example 2 The general procedure of Example 2 was repeated with the exception that 50% PMP was mixed with 50% Mobil SHC624. The cure temperature was again 218°C (425°F). However, the end point was not obtained until 180 minutes of cure, the resulting shaped lubricating gel mass was similar to that obtained in Example 1 but was much harder and less oil exuding. These effects are attributable to the increase in polymer content.
- Example 3A The general procedure of Example 3A was repeated with the exception that the cure was 232°C (450°F) for one hour. A similar lubricating gel mass was obtained. The reduction in curing time was related to the increase in curing temperature.
- Example 1 The general procedure of Example 1 was repeated using the same PMP but substituting Mobil "SHC 629" for the oil used previously. This oil differs primarily in having a viscosity of 160 mm 2 /s at 38°C (100°F). No end point of the cure cycle was reached after 240 minutes using a 218°C (425°F) cure temperature. No shaped mass was formed. This is attributable to the greatly increased viscosity of the lubricant which hinders intimate mixing during the cure cycle at 218°C (425°F).
- Example 4 The general procedure of Example 4 was repeated except a cure temperature of 254°C (490 0 F) was employed. An end point was reached in 45-50 minutes. The resulting shaped lubricating gel was similar to that obtained in Example 1.
- Example 1 The general procedure of Example 1 was repeated with the exception that diester lubricant Exxon 2380 was substituted for the previously used oil.
- the cure cycle was 252°C (485°F) for 60 minutes.
- the resultant shaped mass was obtained in the form of a tough, resilient solid gel with an oily surface caused by the exudation of oil from the gel.
- Example 2 The general procedure of Example 1 was repeated with the exception that Mobil DTE XH, a mineral oil based lubricant, with a viscosity of 138 mm 2 /s at 38°C (100°F) was substituted for the previously used oil.
- Mobil DTE XH a mineral oil based lubricant, with a viscosity of 138 mm 2 /s at 38°C (100°F) was substituted for the previously used oil.
- the resultant shaped mass was grainy and discolored due to substantial oxidation of the Mobil DTE XH.
- the speed of rotation of the inner ring of the bearing was increased step-wise in 3600 rpm increments, allowing the apparatus to run until the operating temperature had stabilized at each step. No extraneous heat was supplied, i.e. the test was run under ambient temperature conditions.
- the bearing speed reached 7200 rpm at which speed the oil-polyethylene gel lubricant failed by the lubricant mass being expelled from the bearing.
- the bearing temperature was 49°C (120°F) at 7200 rpm.
- oils of lubricating viscosity in the range of 15 to 300 mm 2 /s or more can be employed in the compositions of the present invention.
- the invention is operable with lubricants having a mineral oil base, diester oil base, or synthetic hydrocarbon oil base and all three types are represented in the examples.
- the PMP-oil mixtures can be stabilized so that they may be shipped in that form prior to being fully gelled by the purchaser or final user. This is done by partially curing the PMP-oil mixture by heating to a temperature of about 28° to 42°C (50° to 75°F) below the curing temperature of the particular mixture and maintaining this temperature for a period of about 15 to 20 minutes to form a partially gelled and stabilized product of grease-like consistency. After shipping and/or storage such stabilized products are curable in the usual way to provide the shaped relatively rigid gels of the invention.
- the PMP oil mixture of Example 5, containing Mobil SHC 629 which cured at 254°C (490°F) would be heated to about 224°C (435°F) for 15 to 20 minutes to obtain a stabilized mixture for shipping.
- the curing temperature of the PMP-oil mixtures varies somewhat depending on the identity of the particular oil and its viscosity. In general the higher the viscosity of the oil, the higher the temperature required to achieve an adequate cure.
- the optimum curing temperature for any particular PMP-oil mixture can of course, be determined by trial and error or by experience. Inasmuch as the compositions of the present invention are curable at temperatures within the range of about 220°C (428°F) to about 260°C (500°F), they may be stabilized by heating for 15 to 20 minutes at temperature within the range from about 178°C (353°F) to about 218°C (425°F).
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/817,147 US4146487A (en) | 1977-07-20 | 1977-07-20 | Lubricating composition |
| US817147 | 1977-07-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0000697A1 EP0000697A1 (de) | 1979-02-21 |
| EP0000697B1 true EP0000697B1 (de) | 1984-11-14 |
Family
ID=25222434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP78100269A Expired EP0000697B1 (de) | 1977-07-20 | 1978-06-29 | Gelförmige Schmiermittelzusammensetzung bestehend aus Oel und Polymethylpenten |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4146487A (de) |
| EP (1) | EP0000697B1 (de) |
| JP (1) | JPS5422415A (de) |
| AU (1) | AU515161B2 (de) |
| CA (1) | CA1096367A (de) |
| DE (1) | DE2830136A1 (de) |
| DK (1) | DK153085C (de) |
| IT (1) | IT1112280B (de) |
| NL (1) | NL7806999A (de) |
| SE (1) | SE442872B (de) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239632A (en) * | 1979-03-14 | 1980-12-16 | Skf Industries, Inc. | Lubricant composition |
| JPS55137198A (en) * | 1979-04-13 | 1980-10-25 | Ntn Toyo Bearing Co Ltd | Lubricating composition for ball-and-roller bearing |
| EP0036692A1 (de) * | 1980-03-24 | 1981-09-30 | SKF Industrial Trading & Development Company B.V. | Schmiereinsatzstück für Wälzlager |
| US4534871A (en) * | 1980-03-24 | 1985-08-13 | Skf Industries, Inc. | Lubricant insert for rolling bearings |
| JPS57160595A (en) * | 1981-03-31 | 1982-10-02 | Nippon Radiator Co Ltd | Manufacture of heat exchanger made of aluminum material |
| JPS5813930A (ja) * | 1981-07-20 | 1983-01-26 | Matsushita Electric Ind Co Ltd | 加熱調理器 |
| US4492415A (en) * | 1982-03-03 | 1985-01-08 | Skf Industries, Inc. | Unitary full complement bearing components containing rolling elements in a self-supporting lubricating matrix |
| US4915856A (en) * | 1987-07-10 | 1990-04-10 | Durafilm Corporation | Solid lubricant composition |
| JP2846398B2 (ja) * | 1990-03-15 | 1999-01-13 | 古河電気工業株式会社 | 真空ろう付け用ブレージングシートコイルの製造方法 |
| JP3489586B2 (ja) * | 1991-10-25 | 2004-01-19 | オイレス工業株式会社 | 固体潤滑剤ならびに該固体潤滑剤を埋込んだ摺動部材 |
| US5415791A (en) * | 1990-08-02 | 1995-05-16 | Oiles Corporation | Lubricating composition and a sliding member comprising the composition |
| JP2866457B2 (ja) * | 1990-08-02 | 1999-03-08 | オイレス工業株式会社 | 固体潤滑剤ならびに該固体潤滑剤を埋込んだ摺動部材 |
| US6228813B1 (en) | 1993-04-30 | 2001-05-08 | Nsk Ltd. | Rolling bearing filled with a lubricant-containing polymer and process of the same |
| JPH07238940A (ja) * | 1994-02-28 | 1995-09-12 | Ntn Corp | ころ軸受 |
| US5591808A (en) | 1994-10-03 | 1997-01-07 | E/M Corporation | Acetal-based self lubricating compositions |
| JP3925579B2 (ja) | 1998-02-03 | 2007-06-06 | 日本精工株式会社 | 潤滑剤供給体、並びに前記潤滑剤供給体を備える転がり軸受、リニアガイド装置及びボールねじ装置 |
| US6062271A (en) * | 1998-05-22 | 2000-05-16 | Markel Corporation | Polymethylpentene cable liner |
| JP2002212581A (ja) * | 2001-01-23 | 2002-07-31 | Koyo Seiko Co Ltd | 固形潤滑組成物およびポリマ潤滑剤封入転がり軸受 |
| US7683014B2 (en) * | 2001-04-13 | 2010-03-23 | Mitrovich Michael J | Process for making a two-part solid lubricant stick |
| FR2913740B1 (fr) * | 2007-03-14 | 2009-09-04 | Cie Engrenages Et Reducteurs M | Dispositif d'accouplement flexible |
| FR2913742B1 (fr) * | 2007-03-14 | 2009-10-30 | Cie Engrenages Et Reducteurs M | Ressort de liaison pour un dispositif d'accouplement flexible |
| DE102007013934A1 (de) | 2007-03-23 | 2008-09-25 | Schaeffler Kg | Transport- und Montagevorrichtung für Wälzkörpersätze |
| DE102007041549A1 (de) | 2007-08-31 | 2009-03-05 | Schaeffler Kg | Wälzlager |
| US20140087980A1 (en) | 2012-09-21 | 2014-03-27 | Mpl Technology, Inc. | Lubricant compositions |
| GB2551712A (en) * | 2016-06-24 | 2018-01-03 | Titus D O O Dekani | Improvements in movement control devices |
| US10849192B2 (en) * | 2017-04-26 | 2020-11-24 | Agc Automotive Americas R&D, Inc. | Enclosure assembly for window electrical connections |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT513721A (de) * | 1953-01-27 | 1900-01-01 | ||
| US3076764A (en) * | 1960-09-30 | 1963-02-05 | California Research Corp | Isotactic polymers of 4-methyl-1-pentene as grease thickeners |
| US3547819A (en) * | 1964-04-28 | 1970-12-15 | Joseph E Ferri | Lubricating composition |
| US3541011A (en) * | 1964-04-28 | 1970-11-17 | Joseph E Ferri | Lubricating composition |
| US3729415A (en) * | 1964-04-28 | 1973-04-24 | Ferri J | Lubricating composition |
| FR1604349A (en) * | 1968-01-02 | 1971-10-11 | Alkene polymer particles as thickening agents for ointments | |
| JPS4833004A (de) * | 1971-08-27 | 1973-05-07 |
-
1977
- 1977-07-20 US US05/817,147 patent/US4146487A/en not_active Expired - Lifetime
-
1978
- 1978-06-26 AU AU37455/78A patent/AU515161B2/en not_active Expired
- 1978-06-29 SE SE7807345A patent/SE442872B/sv not_active IP Right Cessation
- 1978-06-29 EP EP78100269A patent/EP0000697B1/de not_active Expired
- 1978-06-29 NL NL7806999A patent/NL7806999A/xx not_active Application Discontinuation
- 1978-07-08 DE DE19782830136 patent/DE2830136A1/de not_active Withdrawn
- 1978-07-17 IT IT25740/78A patent/IT1112280B/it active
- 1978-07-17 JP JP8618678A patent/JPS5422415A/ja active Granted
- 1978-07-19 DK DK322578A patent/DK153085C/da active
- 1978-07-19 CA CA307,676A patent/CA1096367A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1112280B (it) | 1986-01-13 |
| JPS5625480B2 (de) | 1981-06-12 |
| EP0000697A1 (de) | 1979-02-21 |
| DK153085C (da) | 1988-11-07 |
| DE2830136A1 (de) | 1979-02-01 |
| DK153085B (da) | 1988-06-13 |
| NL7806999A (nl) | 1979-01-23 |
| AU515161B2 (en) | 1981-03-19 |
| SE7807345L (sv) | 1979-01-21 |
| DK322578A (da) | 1979-01-21 |
| US4146487A (en) | 1979-03-27 |
| JPS5422415A (en) | 1979-02-20 |
| SE442872B (sv) | 1986-02-03 |
| CA1096367A (en) | 1981-02-24 |
| IT7825740A0 (it) | 1978-07-17 |
| AU3745578A (en) | 1980-01-03 |
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