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Class 508/482 - Phthalic acid dialkyl ester


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 dialkyl esters of phthalic acid.
No. of patents: 26
Last issue date: 05/04/2010


NumberTitleIssue Date
7709426Solid stick grease compositions
The present invention provides a solid stick composition comprising a thermosetting resin and a grease. Optionally, the solid stick composition may comprise a lubricant, a friction modifier, a thermoplastic plasticizer or a combination thereof. The solid stick compo...
05/04/2010
7323586Phthalic acid alkyl ester mixtures with controlled viscosity
Mixtures of isomeric dialkyl phthalates that have a desired viscosity are prepared by esterifying phthalic acid or phthalic anhydride with a mixture of isomeric alkyl alcohols having a certain carbon number of carbon atoms, where the molar fraction of each alkyl alc...
01/29/2008
7214648Lubricant and additive formulation
An engine lubricant formulated as a complete crankcase motor oil or additive concentrate composed of a combination of chemical constituents including a base oil selected from a synthetic oil, a mineral oil or semi-synthetic base oil (hydrogenated oil) or combination...
05/08/2007
7205351Processing aids for the processing of synthetic polymer compositions
The present invention relates to processing aids for the processing of synthetic polymer compositions based on carboxylic esters, where the processing aids include, partial esters which contain at least 18 carbon atoms, have a number-average molecular weight of from...
04/17/2007
7150182High throughput screening methods for lubricating oil compositions
A method for determining storage stability for a plurality of fluid lubricant samples of different lubricating oil compositions is provided. Each sample includes a combination of one or more base oils and one or more lubricating oil additives. The methods can advant...
12/19/2006
RE39382Lubricating oil composition for high-temperature use
The present invention relates to a lubricant composition for a high temperature of which the amount evaporated in a thin film at a high temperature is controlled and of which the fluidity is maintained for a long period of time, and it is a lubricant composition for...
11/07/2006
6969550Magnetic recording medium
There is provided a magnetic recording medium which exhibits superior lubricating properties and superior tape-transport properties as well as superior robustness even in a low-temperature environment. A magnetic layer containing a ferromagnetic metal is formed on a...
11/29/2005
6846782Method of reducing intake valve deposits in a direct injection engine
This invention relates to a method of reducing intake valve deposits in a direct injection engine, the method comprising lubricating the engine with a lubricating oil composition comprising a base oil mixture, the base oil mixture comprising (i) a Group III, a Group...
01/25/2005
6806239High-lubricity grease and modifier for lubricating grease
A lubricating-grease modifier for addition to and modification of a lubricating grease that is to be present in a driving mechanism of a machine or apparatus and lubricate a driving part of the driving mechanism, the modifier comprising a lubricating resin powder an...
10/19/2004
6649576Lubricating oil compositions
A crankcase lubricant containing a Group III basestock in a major amount and a Group V basestock in the form of an ester in a minor amount. The lubricant also comprises a dispersant, a metal detergent, one or more other additives, and a viscosity modifier...
11/18/2003
6599868Lubricating oil compositions
A marine engine lubricating oil composition for a slow or medium speed diesel engine comprises a major amount of an oil of lubricating viscosity that contains a minor amount of a fuel oil with a residual fuel content and, admixed therewith, a minor amount...
07/29/2003
6465400Lubricating oil composition for high-temperature use
The present invention relates to a lubricant composition for a high temperature of which the amount evaporated in a thin film at a high temperature is controlled and of which the fluidity is maintained for a long period of time, and it is a lubricant comp...
10/15/2002
6235691Oil compositions with synthetic base oils
A lubricating oil composition is disclosed comprising at least 10% by weight of the total oil composition of an ester of phthalic acid having a viscosity index less than 100. The lubricating oil composition has improved fuel economy and wear performance....
05/22/2001
5798319High stability and low metals esters based on 3,5,5-trimethyl-1-hexanol
A lubricant which is prepared from at least one synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of 3,5,5-trimethyl-1-hexanol and an acid or anhydride; and a lubricant additive package; whereby th...
08/25/1998
5756430Mist oil lubricant
Mist oil lubricants are disclosed based on polycarboxylic acid esters as the base oil which have added 1 to 5% of polyisobutylene Mn 400-2500 as stray mist suppressants....
05/26/1998
5637558Compositions for reducing wear on ceramic surfaces
Fluid compositions comprised of a monomer constituent dissolved in a carrier fluid, where the monomer constituent is capable of forming a polymer film directly on rubbing surfaces but is not polymerized in solution, have been found to be effective for red...
06/10/1997
5580483Synthetic break-in lubricant for a refrigeration compressor
Certain organic diesters and triesters have been found to be useful as a break-in lubricant compressors used in conjunction with HFC-based refrigeration systems. These include compositions of the formula: R1 OOC--Q--COOR2, ##STR...
12/03/1996
5271855Use of metal soaps of polycarboxylic acids or polycarboxylic acid partial esters as processing aids for polyesters
The invention is a processing aid for thermoplastic polyesters which is a salt of a polycarboxylic acid or the salt of a polycarboxylic partial ester. The polycarboxylic acids are partial esters or sales of modified acids such as succinic acid, adipic aci...
12/21/1993
5248432Halogenated aryl ester damping fluids and lubricants
The invention provides a method for lubricating inertial instruments such as gyroscopes and accelerometers which require flotation fluids for operation. An exemplary process comprises introducing a fluid which contains a halogenated aryl ring, to an inert...
09/28/1993
5019286Low viscosity aromatic carbonate lubricating oil concentrates
According to the present invention, a process is provided for forming a lubricating oil concentrate containing aromatic carbonate which comprises admixing lubricating oil, aromatic carbonate and at least one aromatic carbonate solubilizing co-additive of ...
05/28/1991
5000863Lubrication boosting additives comprising organic titanium compounds and lubricating oil compositions comprising the same
A lubrication boosting additive comprising a mixture of an organic titanium compound soluble in a solvent, an organic solvent for the organic titanium compound, and a phthalic ester. The additive is used in combination with lubricating oils to improve loa...
03/19/1991
4826614Lubrication boosting additives and lubricating oil compositions comprising the same
A lubrication boosting additive comprising a mixture of a fluororesin, which is an alternating copolymer of a fluoroolefin and vinyl ether, soluble in an organic solvent and a phthalic ester in an organic solvent. The amounts of the organic solvent and th...
05/02/1989
4790957Polycarboxylic acid esters and lubricants containing these esters
This invention relates to aliphatic or aromatic polycarboxylic acid esters as defined herein which are useful as base oils alone in lubricating oil compositions or in admixture with completely synthetic, partially synthetic, or mineral oil-based lubricant...
12/13/1988
4370247Gear and axle oil composition
A gear and axle oil composition comprises (a) conventional gear/axle grade mineral oil; (b) a polyoxyalkylene glycol of viscosity from 5 to 30 cSt at 100° C.; and (c) at least one di-C8 to C12 alkyl ester of a dicarboxylic acid. The...
01/25/1983
3974081Biodegradable seal swell additive with low toxicity properties for automatic transmission fluids, power transmission fluids and rotary engine oil applications
A fluid having a mineral lubricating oil base and containing an oil soluble, saturated aliphatic or aromatic hydrocarbon ester having from 10 to 60 carbon atoms which, if desired, can be used in combination with an aliphatic alcohol of from 8 to 13 carbon...
08/10/1976
3941910Oil-coated metal sheet
An oil-coated metal sheet coated with a surface coating oil in an amount of from 0.05 - 1.0 g/B.B., said surface coating oil comprising diisodecyl phthalate and 0.1 -5% of one or more of a fatty acid having 14-18 carbon atoms....
03/02/1976
 
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