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6221276 |
Heat transfer liquid with potassium formate for ventilation and air conditioning installations
The invention relates to a heat transfer liquid for ventilation and air-conditioning installations to be used at low temperatures, in which installations heat is recovered from the exhaust air and...
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6203719 |
Extended engine coolant lifetime through polymeric polycarboxylate secondary silicate stabilization
The present invention provides corrosion inhibition formulations and compositions for inhibiting mineral scale and the corrosion of metals particularly the cavitation corrosion of aluminum in the...
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6121209 |
Synergistic antioxidant systems
The invention provides synergistic combinations of phosphorus acid-containing compounds with ashless antioxidants. These combinations dramatically improve the oxidation stability of lubricating...
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6093341 |
Heat transfer medium based on alkylene glycols for solar units
The invention relates to a concentrate for a heat transfer medium for solar units, comprising a) from 45 to 98% by weight of triethylene glycol and/or tetraethylene glycol, b) from 1 to 55%...
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6065572 |
Polymeric materials to self-regulate the level of polar activators in electrorheological fluids
Electrorheological systems of improved temperature range are obtained by including within the system a solid polymer insoluble in a low molecular weight activating material and in the hydrophobic...
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6045719 |
Use of quaternized imidazoles as corrosion inhibitors for non-ferrous metals, and coolant compositions and antifreeze concentrates comprising them
Quaternized imidazoles I ##STR1## in which R 1 and R 3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by...
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RE36479 |
Aqueous compositions containing nitrogen-containing salts
A composition is disclosed which comprises water and at least one carboxylic salt dispersed or dissolved in said water, said salt being derived from: (A)(I) at least one derivative formed by...
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6010988 |
Lubricating oil composition
A lubricating oil composition for a wet clutch, particularly for an automatic transmission, which comprises mineral oil, synthetic oil or a mixture thereof as a base oil, and which contains 0.1 to...
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5950066 |
Semisolid thermal interface with low flow resistance
An interface material for use in forming a coating interposed along a heat dissipating path between a solid state electronic device and a heat sinking surface. The coating consists of a formulation...
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5945036 |
Dual energy dependent fluids
A dual energy dependent electroviscous fluid which becomes electroviscous upon the application of both electric potential and a second form of energy such as light or pressure. Dual energy...
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5942472 |
Power transmission fluids of improved viscometric and anti-shudder properties
An improved power transmission fluid is formed which comprises a major amount of lubricating oil and an additive combination comprising (a) a viscosity modifier having a molecular weight no greater...
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5925288 |
Electrorheological fluid containing silica particles esterified by an alcohol-modified silicone oil
The invention relates to an electrorheological fluid comprising fine silica particles, to which an alcohol-modified silicone oil is bonded, compounded with a nonconducting liquid, to which a...
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5885942 |
Multifunctional lubricant additive
The multifunctional lubricant additive compositions of the invention preferably contain a methylene bis(dibutyldithiocarbamate) as an antiwear and extreme pressure additive, a...
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5858929 |
Composition for providing anti-shudder friction durability performance for automatic transmissions
A composition for use in lubricants and function fluids to provide improved anti-shudder and shudder durability properties to an automatic transmission. The composition comprises alkoxylated fatty...
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5851419 |
Metal corrosion inhibitive coolant composition containing alkenylsuccinic acid or alkali metal salt thereof
An effective metal corrosion inhibitive coolant composition having an excellent pH stabilizing property is disclosed, comprising a glycol as a main ingredient, at least one C 4-C 16 alkenylsuccinic...
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5849675 |
Hydraulic system using an improved antiwear hydraulic fluid
A hydraulic system containing a piston-type pump having wear surfaces containing copper or a copper alloy, and, optionally, a vane-type pump having wear surfaces containing steel, uses an antiwear...
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5811025 |
Corrosion inhibiting coolant compositions
Coolant compositions are disclosed which include only a minimum amount of metal corrosion inhibitor. The coolant compositions effectively inhibit: (1) metal corrosion; (2) precipitation of the...
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5766506 |
Hard water compatible phosphate-containing heat transfer fluids
A heat transfer fluid is disclosed which comprises a glycol, a phosphate, and a copolymer additive which is a copolymer of an ethylenically substituted carboxylic acid and an aldehyde. A method for...
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5750048 |
Electroviscous fluid
An electroviscous fluid comprising an electrically insulating liquid and solid electrolyte particles dispersed therein.
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5741436 |
Antifreeze concentrates and compositions comprising neodecanoic acid corrosion inhibitors
This invention relates to organic acid corrosion inhibitors for use in antifreeze coolant compositions. The corrosion inhibitors comprise a C 8 mono-carboxylic acid component, or isomers and/or...
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5725794 |
Antifreeze composition containing poly (oxyalkylene) -substituted colorant
A color-stable antifreeze composition containing a polyhydric alcohol, a corrosion inhibitor and a poly(oxyalkylene)-substituted colorant having the structure ABXYZ, where A is an organic...
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5723061 |
Antifreeze composition comprising a water-soluble alcohol and a corrosion inhibitor system comprising dicarboxylic acids or salts thereof, diazole and a triazole
The present invention relates to an antifreeze composition containing a water-soluble liquid alcohol and a corrosion inhibitor system comprising (a) a mixture of at least two aromatic or aliphatic...
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5723060 |
Antifreeze composition
An antifreeze composition is provided having a polyhydric alcohol, a corrosion inhibitor and a colorant of the formula: ##STR1## wherein m and n are independently selected from 0, 1, 2 or 3; M is...
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5723095 |
Cleaner concentrate formulation for biological waste fluid handling systems
A vessel (14) receives biological fluid wastes. After the biological fluids wastes are drained (24) from the vessel, the vessel is sprayed (36) with a cleaning and decontaminating solution. The...
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5718836 |
Liquid coolant compositions with anti-corrosive property containing magnesium and calcium compounds
A liquid coolant composition with improved anti-corrosive property contains 85-99 weight % of an agent for lowering the melting point selected from the group consisting of alcohols and glycol, and...
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5651916 |
Process for the preparation of a propylene glycol antifreeze containing an alkali metal silicate
The preparation of propylene glycol compositions containing alkali metal silicates having improved gel resistance is provided by forming a silicate premix having effective amounts of inorganic base...
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5643493 |
Coolant inhibitor concentrate
The invention described herein is a corrosion inhibitor concentrate, and a method for preparation thereof, which may be formulated free of nitrites, nitrates, amines, and phosphates. The inhibitor...
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5637251 |
Functional additive composition based on organic amine salts for coolants
This invention relates to a water-based antifreeze or coolant composition having improved antioxidant and anticorrosion properties and comprising a major amount of an aqueous solution of a...
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5607617 |
Electroviscous fluids
An electroviscous fluid which consists essentially of a non-conductive liquid and, dispersed therein, anhydrous spherical multilayered particles comprising particles at least whose surfaces are...
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5489391 |
Coolant compositions with p-tert-butylbenzoic acid or salt
A heat exchange inhibitor composition, characterized in that phosphates, amine salts, silicates, borates or nitrites are not necessary, and further characterized in that p-tert butyl benzoic acid...
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5464551 |
Stabilized phosphate ester-based functional fluid compositions
A fluid composition suitable for use as an aircraft hydraulic fluid is disclosed. The fluid composition comprises a fire resistant phosphate ester base stock comprising between about 10% and about...
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5454967 |
Phosphate containing coolant mixtures which are stable in hard water
Phosphate-containing, glycol-based coolant mixtures which are stable in hard water and are free of nitrites, silicates, amines and borates contain a) 0.5-3% by weight of ammonium and/or alkali...
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5435931 |
Protein enhanced electrorheological fluids
An enhanced ER fluid is disclosed. Polypeptides such as proteins are added to ER fluids. The ER response, particularly increased viscosity in response to an electric potential difference applied to...
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5435930 |
Deicer/anti-icer compositions for aircraft
Effective and environmentally benign liquid deicing and anti-icing compositions are provided by aqueous solutions of (a) alkali metal acetates, preferably KAc, (b) phosphate ion, e.g., H 3 PO 4 ...
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5422026 |
Phosphate-free antifreeze formulation
The invention provides an alkylene glycol, preferably propylene glycol, anti-corrosive antifreeze concentrate composed of the glycol and small but effective amounts of borate, sebacate, molybdate,...
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5412006 |
Electrorheological cels and a method for the preparation thereof
The present invention relates to an electrorheological gel comprising a curable silicone polymer, electrorheologically active particles, and a metal catalyst. The composition can further comprise...
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5387360 |
Engine antifreeze coolant composition
An engine antifreeze coolant composition comprising a major amount of glycols as the main constituent which contains at least one conventional corrosion inhibitor except silicates, and about 0.005...
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5387370 |
Electroviscous fluid
Electroviscous fluid according to the present invention is used for vibration control machines and devices such as variable damper, engine mount, bearing damper, clutch, valve, shock absorber,...
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5385688 |
Antifreeze gel composition for use in a cable conduit
An antifreeze gel composition is provided which is particularly useful in preventing ice formation and in dissolving ice already formed in a cable conduit line. The composition includes a water...
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5380450 |
Electrorheological (er) fluid based on amino acid containing metal polyoxo-salts
The present invention relates to an electrorheological fluid composition comprising a dispersion of a plurality of solid particles in an electrically non-conducting liquid, the improvement...
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5366651 |
Corrosion-inhibited antifreeze formulations having monocarboxylic, triazole, and imidazole compounds
Antifreeze concentrate is disclosed having water soluble liquid alcohol freezing point depressant and corrosion inhibitor comprising carboxylic acids or their salts and a triazole compound, wherein...
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5354488 |
Fluid responsive to a magnetic field
A rheological fluid composition which is responsive to a magnetic field. The composition comprises a vehicle, magnetizable particles suspended in the vehicle and a dispersant. The dispersant...
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5352408 |
Diphosphonates as corrosion inhibitors for antifreeze coolants and other functional fluids
A coolant or antifreeze composition has one or more glycols or glycol ethers in combination with water, one or more additives, and an effective amount of 1-hydroxyoctylidene-1,1-diphosphonic acid...
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5330683 |
Method of inhibiting corrosion in brine solutions
An environmentally acceptable and economically appealing method of inhibiting corrosion in brine solution systems wherein an aqueous brine solution is treated with gluconate or sorbitol.
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5316687 |
Electrorheological compositions including A.sub.1+x Zr.sub.2 Si.sub.x P.sub.-x O.sub.12
Disclosed are electrorheological fluids having ceramic particles of high ion conductivity and a nonconducting or dielectric fluid. The high ion conductive particle may be a material having the...
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5310493 |
Stabilized brake fluids containing metal borohydride and butylated hydroxytoluenes
In a composition having one or more glycol-based diluents, one or more lubricants, and one or more inhibitors, the improvement comprising: (A) 0.001 to 1.0 percent by weight of one or more...
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5306438 |
Ionic dye-based electrorheological materials
An electrorheological material containing a carrier fluid and an ionic dye particle component which is an ionically charged compound based on or derived from a conjugated hydrocarbon compound. A...
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5294426 |
Electrorheological fluid compositions
Electrorheological fluid compositions of this invention are dispersions in an electrically insulating medium of 10 to 50% by volume of spherical silica particles prepared by hydrolyzing a silicon...
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5284591 |
Functional fluid with borated epoxides, carboxylic solubilizers, zinc salts, calcium complexes and sulfurized compositions
A multipurpose functional fluid is disclosed which is comprised of a major amount of a hydrocarbon oil and a minor amount, sufficient to improve characteristics of the fluid of a novel additive....
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5282991 |
Friction modified oleaginous concentrates of improved stability
According to the present invention, oleaginous compositions having improved storage stability properties are provided, which comprise a combination of ashless dispersants, friction modifier and...
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