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5622924 |
Viscosity index improver and lubricating oil
There are disclosed a viscosity index improver comprising a polymer containing at least 70% by weight of structural units of an alkyl (meth)acryrate monomer containing not more than 10 carbon atoms...
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5614481 |
Process for obtaining and manufacturing lubricant greases
There is disclosed an improved process for making a lubricant grease wherein a basic oil is mixed with a thickening compound, a polar compound and an additive or additives to impart desired...
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5593957 |
Synthetic lubricating oil containing an ester and working fluid composition for refrigerating machine containing same
A synthetic lubricating oil comprises an ester derived from (a) a monohydric alcohol having 4 to 18 carbon atoms which has a branched alcohol content of not less than 50 mol % and/or a...
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5549835 |
Apparatus equipped with a cooling block unit having sliding parts and a compound used to the same
Disclosed are an apparatus having sliding parts and a compound for preventing diffusion or separation of a base oil; and a compound for preventing diffusion or separation of the base oil used for...
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5523007 |
Stabilized diesel engine oil
A lubricant oil composition comprising a diesel engine lubricating oil and, as antioxidant, a compound of formula I ##STR1## wherein R 1 and R 2 are each independently of the other C 1 -C 12 ...
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5435927 |
Lubricating oil composition
A lubricating oil composition for use in an internal combustion engine comprising (1) a lubricating base oil, and (2) a monofunctional perfluoropolyether derivative of the general formula R F -Z...
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5399273 |
Oil soluble dispersant additives modified with bis-keto/thioketo compounds
The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted nitrogen-...
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5366648 |
Functional fluids useful at high temperatures
Functional fluids characterized as effective over a wide range of temperature including very high temperatures can be prepared, comprising: (A) a major amount of at least one synthetic base oil;...
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5354486 |
Phenol group-containing compounds as anti-oxidants in organic materials
Compositions containing a) an organic material subject to oxidative, thermal or actinic degradation and b) compounds of general formula I ##STR1## wherein, for example, R 1 is alkyl having from 1...
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5284592 |
(Poly) sulfurized carboxylic compounds, their preparation and their use as petroleum additives for lubricating oils
Novel (poly)sulfurized carboxylic compounds, their preparation, and their use as additives to lubricating oils are disclosed. Such novel carboxylic compounds are more particularly esters of the...
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5281346 |
Two-cycle engine lubricant and method of using same comprising alkali or alkaline earth metal salts of carboxylic aromatic acids
This invention relates to lubricants for two-cycle engines comprising a major amount of at least one oil of lubricating viscosity and a minor amount of at least one compound of the general formula ...
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5248432 |
Halogenated 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...
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5171461 |
Sulfur and copper-containing lubricant compositions
Copper and sulfur containing compositions, and additive concentrates and lubricating compositions containing the copper and sulfur containing compositions are described. The sulfur compounds have...
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5167846 |
Sulfoxides of bisthiomethylated and tristhiomethylated phenols
Sulfoxides of bisthiomethylated and tristhiomethylated phenols of formulae I and II ##STR1## wherein R 1 is hydrogen, C 1 -C 18 alkyl, cyclohexyl or C 7 -C 9 phenylalkyl, R 2 and R 3 are...
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5114603 |
Friction reducing lubricating oil composition
A lubricating oil composition which includes partial esters of glycerol substantially free from glycerol are disclosed. The partial esters of glycerol are present in an amount of about 0.05 to...
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5091268 |
Magnetic recording medium lubricated by a three component fatty acid ester-fatty acid amide composition
A novel magnetic recording medium is provided comprising a non-magnetic support having provided thereon a magnetic layer comprising a ferromagnetic powder dispersed in a binder, wherein at least...
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5080817 |
Corrosion inhibitor for 2-cycle engine oils comprising dodecenyl succinic anhydride-propylene glycol esters
A film-forming corrosion inhibitor suitable for use in 2-cycle engine oils is prepared from the reaction product of 1 mole of dodecenylsuccinic anhydride with 0.6-0.95 moles propylene glycol. The...
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5004554 |
Fluorine-containing polyether and lubricant comprising the same
A fluorine-containing polyether of the formula: R f 1 CF 2 CF 2 COOR f 2 (I) or R f 2 OCO--CF 2 CF 2 R' f 1 CF 2 CF 2 --COOR f 2 (II)...
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4992183 |
Multigrade hydrogenated decene-1 oligomer engine oils
Non-polymer thickened multigrade engine oils based on synthetic basestocks are provided. The SAE 5W-30, SAE 10W-30 and SAE 15W-40 engine oils are derived from hydrogenated decene-1 oligomer...
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4954275 |
Use of phenol-mercaptocarboxylic acid esters as stabilizers for lubricants
The phenol-mercaptocarboxylic acid esters used for stabilizing elastomers are those of the formula ##STR1## wherein R is C 1 -C 18 alkyl.
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4950415 |
Water washable dry film lubricants
Metal working lubricant compositions are provided in which a dry film of a lubricant is formed on the metal being worked. The lubricant comprises an ester having a melting point of at least 100°...
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4902438 |
Lubricating oil compositions containing anti-wear/extreme pressure additives
Compounds suitable for use as EP/AW additives in lubricating oil compositions which compounds have the formula: ##STR1## wherein X is independently either a carboxylic acid group, a carboxylic acid...
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4891161 |
Cold rolling mill lubricant
A cold rolling mill lubricant for steel sheets, contains a monoester oil represented by general formula (A): R 1 COO--(R 2 --O) n --R 3 (Wherein R 1 is an alkyl, alkenyl, hydroxyalkyl, or...
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4836944 |
Halogen-containing polyether and its use
A halogen-containing polyether which comprises a repeating unit structure of the formula: --(CH 2 CF 2 CF 2 O) a --(CHClCF 2 CF 2 O) b --(CCl 2 CF 2 CF 2 O) c --(CHFCF 2 CF 2 O) d ...
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4830769 |
Propoxylated guerbet alcohols and esters thereof
The present invention relates to propoxylated guerbet alcohols and esters having an iodine number less than 7 and defined by the general formula: ##STR1## which alcohols and esters are useful,...
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4820431 |
Railway lubricating oil
Disclosed is a lubricating oil composition for enhanced protection against silver wear in railway diesel engines which is formulated with no chlorinated hydrocarbons or with reduced levels thereof....
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4800031 |
Sulfur-containing lubricant and functional fluid compositions
This invention is directed to lubricating and functional fluid compositions having improved antioxidant and extreme pressure properties and high temperature stability. The lubricant and functional...
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4776970 |
Lubricant for use in paper coating and method for producing the same
A lubricant for paper coating compositions. The lubricant is an aqueous dispersion of an ester compound of the formula (I): ##STR1## wherein R is an alkyl or alkenyl group having 3 or more carbon...
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4772405 |
Lubricant compositions which contain sulfur-containing phenol derivatives, and novel sulfur-containing phenol derivatives
The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of formula I ##STR1## wherein X is --S--, --O--, --CO--O--, --CH 2 -- or --NR 5 --,...
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4759862 |
O,p-bifunctionalized o'-substituted phenols
Novel bifunctionalized o-substituted phenols of the formula I ##STR1## are described. Reference should be made to the description in respect of the meaning of the substituents R 1 , Y and Z. The...
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4749517 |
Ethoxylated jojoba oil
An Ethoxylated jojoba oil product and a method for making the same.
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4731190 |
Alkoxylated guerbet alcohols and esters as metal working lubricants
The present invention relates to lubricating compositions useful in facilitating the working of metal. More specifically, the present invention relates to lubricating fluids useful in plastic...
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4729839 |
Water soluble lubricating additives
A method for preparing a water soluble lubricating additive having the generic structural formula: ##STR1## wherein R 1 is an alkyl, cycloalkyl, aryl, alkaryl or aralkyl group having from 1 to 34...
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4701273 |
Lubricant compositions containing antioxidants, amine phosphates and 4- (5-) methyl-1-[di-(2-ethylhexyl) aminomethyl]-benzotriazole
Lubricant formulations containing a combination, which has a synergistic action in respect of metal deactivation, composed of 1-[di-(2-ethylhexyl)-aminomethyl]-benztriazole which is methylated in...
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4618441 |
Metalworking with a lubricant composition comprising mineral oil and alkoxyalkyl ester
A metalworking method that includes a step of applying to a metal object a lubricant composition comprising a major proportion of mineral oil and a minor proportion of an alkoxyalkyl ester having...
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4612131 |
Stabilized rubber or lubricant compositions containing mercaptoalkyl esters of hindered phenols
Compounds of formula I ##STR1## where R 1 and R 2 independently are alpha-branched alkyl of 3 to 8 carbon atoms, R 3 is hydrogen, R 4 is ethylene, 1,3-propylene or 1,4-butylene, and n is 2 or 4...
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4606833 |
Mixture of dithiodiglycol and polyoxyalkylene glycol derivatives as a lubricating additive
A mixture of di-(2-hydroxyethyl)disulfide and a derivative of polyoxyalkylene glycol selected from the group consisting of polyoxyalkylene glycol esters and polyoxyalkylene glycol ethers. The...
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4601838 |
Water-soluble chlorinated fatty ester additives
Improved additive compositions for use in metalworking fluids comprise nonionic water-soluble chlorinated fatty esters. Improved anti-wear and extreme-pressure performance is realized when employed...
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4585564 |
Cold rolling oil for steel sheet
In this invention provided are cold rolling oils for steel sheets which are applied for cold rolling of steel sheets and have excellent lubricity, lubrication stability, and fresh oil replenishing...
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4585565 |
Metalworking lubricant comprising mineral oil and alkoxyalkyl ester
A lubricant composition comprising a major proportion of mineral oil and a minor proportion of an alkoxyalkyl ester having the general formula R 2 COO(CH 2 CH 2 O) n R 1 wherein n=1 or 2, R 1 ...
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4519925 |
Sulfur-containing compounds and lubricants containing them
Sulfur-containing compounds of the formula ##STR1## wherein R is a hydrocarbyl radical; each of R 1 , R 2 , R 3 and R 4 is independently hydrogen or a hydrocarbyl radical; m' is from one to about...
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4438005 |
Marine diesel engine lubricant of improved spreadability
The ability of marine diesel engine cylinder lubricants is improved by the incorporation therein of a spreadability improving amount of at least one polyoxyethylene ester of the formula: ##STR1##...
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4376056 |
Fuel economy in internal combustion engines
The fuel economy of an internal combustion engine can be improved by adding to the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of pentaerythritol...
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4371476 |
Mold release agents containing oxidation stable polyoxyalkylenes
Compositions having internal mold-release properties comprise a molding polymer and an oxidation stable polyoxyalkylene lubricant compound used alone or in combination with other polyoxyalkylene...
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4366076 |
Corrosion inhibited compositions
Corrosion-inhibited compositions are described comprising a functional fluid in contact with a ferrous metal and, as corrosion inhibitor, a compound having the formula: ##STR1## wherein X is H, an...
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4362636 |
Crankcase lubricant and method for improving fuel economy of internal combustion engines utilizing same
Lubricating oils containing oil soluble hydroxyalkyl alkanoates have been found to reduce fuel consumption in an internal combustion engine.
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4304678 |
Lubricant composition for reduction of fuel consumption in internal combustion engines
Lubricating oils containing certain hydroxyl-containing acid esters have been found to be effective friction modifiers and to aid in the reduction of fuel consumption in internal combustion engines.
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4302343 |
Rotary screw compressor lubricants
Synthetic lubricants comprising 15 to 45 weight percent of an ester of a hindered polyhydric alcohol having 3 to 8 hydroxy groups and 5 to 10 carbon atoms with one or more alkanoic acids having 4...
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4260503 |
Mercaptan as an additive for lubricants
Epithio compounds or mercaptans of the formula I ##STR1## wherein X is an oxygen or sulfur atom, --CH 2 --, --CH(R 1 )--, --COO--, --NH-- or --NR 1 --, each of Y and Z is hydrogen or together...
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4250047 |
Lubricant compositions for synthetic fibers and method for lubricating synthetic fibers
Synthetic fibers are treated for the purpose of lubrication with a compound of the formula: ##STR1## wherein R 1 is hydrogen or phenyl, R 2 is an alkylene group having 1 to 3 carbon atoms, R 3 ...
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