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Class 508/182 - With compound having ether group


Subclass of Class 508 - Solid anti-friction devices, materials therefor, lubricant or separant compositions for moving solid surfaces, and miscellaneous mineral oil compositions
Definition: Compositions which contain, in addition to the polytetrafluoroethylene,
No. of patents: 49
Last issue date: 11/29/2011


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NumberTitleIssue Date
8067344Lubricating grease composition
A lubricating grease composition, which comprises a base oil consisting of a mixture of 100 parts by weight of at least one of a perfluoropolyether oil (A), represented by RfO[CF(CF3)CF2O]p(CF2CF2O)qR...
11/29/2011
7939477Lubricant composition for oil-impregnated sintered bearings
A lubricant composition for oil-impregnated sintered bearings, which comprises at least one base oil selected from a perfluoropolyether oil represented by the following general formula: RfO(CF2CF2O)m(CF2O)n
05/10/2011
7659231(PER) fluoropolyether compounds
Compounds having the following formula: wherein: A and A1, equal or different, are respectively H or an aromatic end group as defined below; optionally said aromatic group being...
02/09/2010
7405296Additives for fluorinated oils
Compounds of formula wherein Rf is a (per)fluoropolyoxyalkylene chain having a number average molecular weight in the range 500-10,000; W1, W2
07/29/2008
7402550Rolling bearing
A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one o...
07/22/2008
7399735Perfluoropolyether additives
Compounds formed of (per)fluoropolyether chains and end groups having a pyridine structure, with structural formula: T1-CW1—O—Rf—CW2-T2  (I) wherein T1, T
07/15/2008
7300910Lubricating oil composition
Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer. ...
11/27/2007
7291363Lubricating micro-machined devices using fluorosurfactants
A method of lubricating MEMS devices using fluorosurfactants 42. Micro-machined devices, such as a digital micro-mirror device (DMD™) 940, which make repeated contact between moving parts, require lubrication in order to prevent the onset of stiction...
11/06/2007
7271135Lubricant grease for low and high temperature application and rolling bearing
A rolling bearing, for application in electric auxiliaries for a car, durable owing to high resistance to high temperatures and capable of restraining noises from being generated at low temperatures; and lubricant grease, for low and high temperature application, wh...
09/18/2007
7265080Rolling bearing, rolling bearing for fuel cell, compressor for fuel cell system and fuel cell system
The rolling bearing of the invention to be incorporated in the compressor for fuel cell system comprises a fluorine-based grease containing a fluororesin and a fluorine-based oil, a urea grease containing a urea compound and a synthetic oil or a lithium complex grea...
09/04/2007
7264398Truck pivot joint bearing and method of lubricating
A bearing assembly is disclosed having a pair of bearing members movable relative to one another. A space is defined between the bearing members, and a relatively thin coating of a greaseless, self-lubricating material is applied to the surface of at least one of th...
09/04/2007
7196042Grease composition and rolling apparatus
A grease composition is produced by mixing a thickener comprising a fluoro resin and a second thickener component (a metallic soap, a complex metallic soap, an N-substituted terephthalamic acid metal salt, organic bentonite or a calcium sulfonate complex) into a bas...
03/27/2007
7081440Additives for perfluoropolyether oils
Use as stabilizers of perfluoropolyether oils at high temperatures, higher than 200° C., of compounds not containing phosphor and having the general formula (A): ...
07/25/2006
7079304Structured fluid compositions for electrophoretically frustrated total internal reflection displays
A structured fluid composition comprising: (a) a low refractive index liquid; (b) particles including light absorbing charged particles such as pigments, non-light absorbing uncharged particles such as teflon, sili...
07/18/2006
6995121Stability polymeric lubricants and thin film recording media comprising same
A data/information storage and retrieval medium comprises: (a) a substrate having a layer stack thereon, the layer stack including an outer surface and comprising at least one magnetic or magneto-optical (“MO”) recording layer;...
02/07/2006
6946429Bearing for electronically controlled throttle motor
A bearing for an electronically controlled throttle motor in an automobile filled with a grease composition with a kinetic viscosity between 40 and 150 mm2/sec (at 40° C.) containing (a) a straight-chain perfluoropolyether oil with a kinetic viscosity le...
09/20/2005
6828284Flourinated compositions comprising phosphorus
A composition that is or comprises a phosphorus-, perfluoropolyether-, and perfluoroalkyl-containing compound is provided. The compound comprises either (i) mono- or polyalkylene oxide linking groups between the phosphorus and the fluorocarbon group, or (ii) no link...
12/07/2004
6780823Container, such as a food or beverage container, lubrication method
A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a liquid lubricant. The process provides many advantages compared to t...
08/24/2004
6723684Low torque grease composition
There is provided a grease composition useful for bearings of cars and aircraft which is stable in a wide range of temperature of 40 to 180° C. and exhibits low torque properties under high loading at low temperatures. A low torque grease composition having dynamic...
04/20/2004
6673750Lubricating composition
Disclosed is a lubricating composition such as a lubricant, a lubricating grease, or a rust preventive oil for use in a torque limiter and a ball-and-roller bearing; the lubricating composition having chemical attack resistance for a synthetic resin molde...
01/06/2004
6667281Grease composition
A grease composition suitable for use with vehicle electrical equipment and vehicle engine starters is disclosed, which has excellent abrasion resistance and anti-seizure property, long service life, excellent lubricity at low temperatures, and has no adv...
12/23/2003
6548454Rolling apparatus containing a liquid fluorinated polymer oil and thickening agent
The present invention provides a rolling apparatus comprising a movable member which can undergo rotary or linear motion, a support member which carries the movable member, rolling elements which are interposed between the movable member and the support m...
04/15/2003
6528457Composition comprising halogenated oil
A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosil...
03/04/2003
6461998Lubricant compositions based on PTFE
Use as lubricants having a low friction coefficient and an improved noise reduction among moving mechanical parts of dispersions comprising a fluorinated oil and a (per)fluoropolymer, said compositions dilutable with water and obtainable by mixing: a) a f...
10/08/2002
6432887Rolling device
The rolling device of the present invention utilizes any one of 1) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at -20° C. falling within a range of between 100 mm2 /sec and 3,000 mm2 /sec and a...
08/13/2002
6358891Lubricating/sealing oil-based composition and method of manufacture thereof
A lubricating/sealing composition is provided according to the present invention and finds particular use as a lubricating medium in internal combustion engines. According to the present invention, the lubricating/sealing composition comprises a base lubr...
03/19/2002
6329326Rolling bearing
A rolling bearing has a grease filled therein. The grease contains a perfluoropolyether oil having a straight-chain structure having a dynamic viscosity of from 40 to 160 mm2 /s, preferably from 40 to 100 mm2 /s, at 40° C. as a base...
12/11/2001
6288012Container, such as a beverage container, lubricated with a substantially non-aqueous lubricant
A process for lubrication a container, such as a beverage container, by applying to the container, a substantially non-aqueous lubricant. The process provides many advantages as compared to the use of an aqueous lubricant....
09/11/2001
6211121Water glycol treatment with polytetrafluoroethylene
A lubricant contains a fire-resistant water/glycol mixture combined with polytetrafluoroethylene, and is useful in the hydraulic systems of die casting machines, for example. The addition of polytetrafluoroethylene enhances the lubricity of fire-resistant...
04/03/2001
6025307Fluorinated greases
Fluorinated greases comprising (by weight): 15%-50% polytetrafluoroethylene or tetrafluoroethylene copolymers with other ethylenically unsaturated monomers; 30%-84.5% perfluoropolyether oil having a viscosity comprised between 20 and 4000 cSt at 20° C.; 0.5%-...
02/15/2000
5990054Method of mixing diethylene glycol and polytetrafluoroethylene
A lubricant contains a fire-resistant water/glycol mixture combined with polytetrafluoroethylene, and is useful in the hydraulic systems of die casting machines, for example. The addition of polytetrafluoroethylene enhances the lubricity of fire-resistant...
11/23/1999
5851635Device for the transmitting motion with a reduced noisiness and belts suitable for the purpose
A device for transmitting motion comprises a flexible elastomeric element and at least one rigid element in surface contact with one another, wherein the surface of said flexible elastomeric element that comes into surface contact with said rigid element ...
12/22/1998
5839311Composition to aid in the forming of metal
In one aspect, this invention provides a lubricating and colling composition for the forming of metals comprising a hydrofluoroether. In another aspect, the present invention provides a method of forming metals comprising applying to the metal and the wor...
11/24/1998
5633089Sorbitan ester lubricant and magnetic recording medium employing the same
There is provided a lubricant which is produced by dissolving a sorbitan ester compound in a solvent such as hexane or toluene. In the sorbitan ester compound, at least one of hydroxyl groups of 1,5-sorbitan is linked by ester linkage to a perfluoro polye...
05/27/1997
5518639Powder metallurgy lubricant composition and methods for using same
The present invention provides lubricant compositions for the powder metallurgical field. The lubricant compositions contain a solid phase lubricant such as graphite, molybdenum disulfide, and polytetrafluoroethylene in combination with a liquid phase lub...
05/21/1996
5484544Lubricating composition, preparation process and applications, particularly as an additive in oils
A substantially anhydrous lubricating composition containing solid particles of a fluorinated (co)polymer having a maximum size of 1 μm and coated with an ethoxylated nonylphenol having 10-12 ethylene oxide molecules. A preparation method is also provide...
01/16/1996
5344580Oligomers of fluorinated olefins
Oligomers of compounds of the formula X--(CF2)a --Ob --(CH2)c --CH=CH2( 1) and co-oligomers of compounds of the formula (1) together with compounds of the formula X--(CX2)d --O
09/06/1994
4985161Fluorine-containing grease and its preparation
A fluorine-containing grease comprising polytetrafluoroethylene and a perfluoroalkyl polyether which is prepared by polymerizing tetrafluoroethylene in the perfluoroalkyl polyether has good homogeneity and lubricity....
01/15/1991
4941987Lubricating greases
New lubricating greases, the oily component of which is perfluoropolyether or fluoropolyether derivative of formula R--O--Q--CFX--(Y)n --Z, having a number average molecular weight ranging from 1,500 to 10,000. wherein R is perfluoroalkyl radical R
07/17/1990
4824626Process for the reproduction of works of art of lithoid material
A process for the reproduction of works of art made of a lithoid material including the use of a silicone rubber to obtain a negative mold of the work of art, wherein a thin layer of a fluorinated grease, based on polytetrafluoroethylene and a liquid perf...
04/25/1989
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