Organic Components Patents (Class 252/73)
  • Patent number: 6228283
    Abstract: The present invention provides heavy duty long life corrosion inhibition formulations and compositions for inhibiting mineral scale and the corrosion of metals particularly the cavitation corrosion of aluminum in the presence of aqueous liquids. The combination of a mixture of polymeric polycarboxylates, azoles, molybdenum, and a combination of nitrite and nitrate salts, phosphates, stabilized silicates and transition metal compounds provide a synergistic protective effect against the cavitation corrosion of aluminum in aqueous liquids reducing the corrosion rate and is effective at relatively low concentrations and varying pH ranges.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: May 8, 2001
    Assignee: Ashland Inc.
    Inventors: David E. Turcotte, Frances E. Lockwood
  • Patent number: 6207072
    Abstract: A coolant containing 35-65 wt. % polyethylene glycol and 65-35 wt. % ethylene glycol, which is especially useful for cooling motor vehicle engines.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: March 27, 2001
    Assignee: Bayer AG
    Inventors: Aziz El Sayed, Detlev Joachimi, Hartwig Meier, Karsten-Josef Idel
  • Patent number: 6193905
    Abstract: A coolant for cooling a semiconductor element by direct immersion, cooling, which has an improved cooling capability, is disclosed. The coolant comprises a low boiling point fluorocarbon having a boiling point of 30° C. to 100° C. and a high boiling point fluorocarbon having a boiling point higher than that of the low boiling point fluorocarbon by at least 100° C.; an amount of the high boiling point fluorocarbon being less than 20% by volume, based on the volume of the low boiling point fluorocarbon.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: February 27, 2001
    Assignee: Fujitsu Limited
    Inventors: Mitsutaka Yamada, Kishio Yokouchi, Nobuo Kamehara, Koichi Niwa
  • Patent number: 6191330
    Abstract: Disclosed is a traction drive fluid which comprises (A) one or more than two compounds selected from the group consisting of saturated polycyclic hydrocarbon compounds represented by the formulae: wherein R1 and R2 are each independently hydrogen or a methyl group, provided that the case where both R1 and R2 are a methyl group at the same time is excluded, and R3 and R4 are each independently hydrogen or a methyl group; wherein R5 and R6 are each independently hydrogen or a methyl group, provided that the case where both R5 and R6 are a methyl group at the same time is excluded, R7 and R8 are each independently hydrogen or a methyl group; and wherein R9, R10 and R11 are each independently hydrogen or a methyl group.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: February 20, 2001
    Assignees: Nippon Mitsubishi Oil Corporation, San-Petrochemical Co., Ltd.
    Inventors: Mitsuo Matsuno, Shinichi Shirahama, Tetsuo Okawa, Takashi Kiyota
  • Patent number: 6187414
    Abstract: A flexible lustered product used in automobiles. The flexible lustered product includes a base material made of resin. A base coat layer is applied to at least a portion of the surface of the base material. The base coat layer has a glass transition point that is at least minus 30° C. and at most 0° C. The base coat layer includes a silane coupling agent having an epoxy group. A metal film layer is applied to at least a portion of the surface of the base coat layer. The metal film layer is anticorrosive and has a thickness that is at least 150 Å and at most 800 Å. The metal film layer is formed by a plurality of metal particles disposed in contact with one another so as to define a grain boundary between adjacent metal particles. A top coat layer is applied to at least a portion of the surface of the metal film layer. The top coat layer includes an ultraviolet ray absorbent and a silane coupling agent having an epoxy group.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: February 13, 2001
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Yukitaka Hasegawa, Yasuhiko Ogisu
  • Patent number: 6165380
    Abstract: A heat transfer/cooling fluid for low temperatures containing from about 15% to about 70% of trimethyl glycine or derivatives thereof and from about 30% to about 85% of water. The heat transfer/cooling fluid is environmental-friendly and non-toxic. It has good heat transfer properties and is suitable for, e.g., the needs of the food industry and solar panels.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: December 26, 2000
    Assignee: Neste OY
    Inventors: Antti Ilves, Matti Lindstrom
  • Patent number: 6159276
    Abstract: A composition for sealing warped or cracked engine coolant systems is provided comprising an aqueous silicate mixture comprising 50-80% sodium silicate, based on the total amount of silicates in the mixture, and 50-20% potassium silicate, based on said total amount of silicates in the mixture; the total amount of silicates comprising about 40-50% of said mixture; a glycol in an amount of at least 10% by volume of the composition; and the balance being water. A method for sealing warped or cracked engine cooling systems is also provided.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: December 12, 2000
    Assignee: SCIX, LLC
    Inventor: Robert W. Barks
  • Patent number: 6146546
    Abstract: Disclosed is a freezable coolant composition used for cold-preservation of, e.g., foods by utilizing the latent heat of fusion at the freezing point which is substantially higher than 0.degree. C. and in the range, for example, from 5.degree. C. to 26.degree. C. The composition is a ternary mixture consisting of: (A) from 98.0 to 8.0% by weight of 1,6-hexanediol; (B) from 0.5 to 3.0% by weight of sodium benzoate; and (C) from 1.5 to 89.0% by weight of water, each percentage being based on the total amount of the components (A), (B) and (C).
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: November 14, 2000
    Assignees: S*I*C Co., Ltd, Rokuro Suzuki
    Inventor: Rokuro Suzuki
  • Patent number: 6123868
    Abstract: A heat exchange medium is disclosed which utilizes a change in molecular configuration of photochromic compounds when they are exposed to light. Further, by the addition of the photochromic compound as a side chain to an organic polymer, the polymer can also be induced to change configuration and absorb larger amounts of heat.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: September 26, 2000
    Inventors: Bruce Sangster, James D. Bond
  • Patent number: 6117368
    Abstract: A process for forming dielectric particles includes admixing a first monomer and a crosslinker in a liquid dispersion medium to form a first mixture. A second mixture of an initiator and a stabilizer is prepared and added to the first mixture to form a third mixture in which the first monomer polymerizes to form polymer particles. A second monomer is introduced to the third mixture, the second monomer at least partially polymerizing and grafting upon the previously formed polymer particles. A functional monomer effecting the outer surface charge characteristics of the final particles may be introduced to the third mixture when the second monomer is introduced. The particles may be employed in an electrophoretic fluid for use in an electrophoretic display by dispersing the dielectric particles prepared by the two stage polymerization process in a dielectric fluid.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 12, 2000
    Assignee: Copytele, Inc.
    Inventor: Wei-Hsin Hou
  • Patent number: 6093341
    Abstract: The invention relates to a concentrate for a heat transfer medium for solar units, comprisinga) from 45 to 98% by weight of triethylene glycol and/or tetraethylene glycol,b) from 1 to 55% by weight of 1,2-propylene glycol and/or ethylene glycol, andc) from 1 to 6% by weight of corrosion inhibitors.The concentrate is used in admixture with water for heat transport in solar units.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: July 25, 2000
    Assignee: Clariant GmbH
    Inventors: Peter Minks, Johann Schuster, Knud Pulletz
  • Patent number: 6086782
    Abstract: Heat transfer fluid compositions comprising (a) a terpene component, comprising at least one terpene; and (b) an alkylbenzene component, comprising at least one alkylbenzene; wherein the components are provided in an effective amount such that the 5resultant composition retains the liquid phase at temperatures in the range from about 0.degree. F. to below about -120.degree. F., preferably from about 0.degree. F. to about -175.degree. F.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: July 11, 2000
    Assignee: Advanced Fluid Technologies, Inc.
    Inventors: James T. Hsu, Kenneth F. Wieland, Satish Mohapatra, Daniel J. Loikits
  • Patent number: 6065572
    Abstract: 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 medium of the fluid. The polymer contains hydrophilic functionality, and in the polymer a portion of the low molecular weight polar activating material is sorbed in an amount which reversibly increases with increasing temperature.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: May 23, 2000
    Assignee: The Lubrizol Corporation
    Inventors: Barton J. Schober, Joseph W. Pialet, Robert A. Pollack, Denise R. Clark
  • Patent number: 6037032
    Abstract: A process for producing a carbon foam heat sink is disclosed which obviates the need for conventional oxidative stabilization. The process employs mesophase or isotropic pitch and a simplified process using a single mold. The foam has a relatively uniform distribution of pore sizes and a highly aligned graphic structure in the struts. The foam material can be made into a composite which is useful in high temperature sandwich panels for both thermal and structural applications. The foam is encased and filled with a phase change material to provide a very efficient heat sink device.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: March 14, 2000
    Assignee: Lockheed Martin Energy Research Corp.
    Inventors: James W. Klett, Timothy D. Burchell
  • Patent number: 6037403
    Abstract: A high viscosity fluid composition having a specific gravity of 1 or more, the physical properties of said fluid composition is not impaired for the use of a long period of time, and a vibration energy damping device which is filled with said high viscosity fluid composition. The high viscosity fluid composition comprises a high viscosity hydrocarbon fluid and an inorganic filler.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: March 14, 2000
    Assignee: Nippon Petrochemicals Company Limited
    Inventors: Haruhisa Katase, Sakae Kanai
  • Patent number: 6022488
    Abstract: A heat transfer fluid having high heat capacity, high thermal loading capacity, low viscosity and low freezing point includes diphenyl oxide and 1,1 diphenyl ethane in broad proportions.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: February 8, 2000
    Assignee: Radco Industries, Inc.
    Inventors: Robert A. Damiani, Michael R. Damiani
  • Patent number: 5993684
    Abstract: Method and compositions for reducing or removing ice formation from surfaces where the compositions consist essentially of (i) one or more polyhydric alcohols and (ii) one or more non-potassium, low carbon percentage organic compounds, and optionally one or more non-potassium, non-halide inorganic compounds and/or monohydric alcohols, whereby the freezing point of the composition is depressed.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: November 30, 1999
    Assignee: Mainstream Engineering Corporation
    Inventors: Dwight D. Back, John A. Meyer, Charlie Ramos
  • Patent number: 5972855
    Abstract: A soybean oil based hydraulic fluid of which the soybean oil is less than 85% by weight and the fatty acid profile of the hydraulic fluid includes about 0.12% C24:0. The base oil is hydrogenated to produce maximum possible stability of the soybean oil, and is winterized to remove crystallized fats and improve the pour point of the base oil without the necessity of heating the oil. The base oil is then combined with a hydrocarbon based additive package containing materials specifically designed for mobile equipment application including friction and anti-chatter materials, needed for wet clutches and brakes.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: October 26, 1999
    Inventor: Lou A. T. Honary
  • Patent number: 5964102
    Abstract: A cool mug is provided with a closed chamber defined between an outer vessel and an inner vessel. The bottom is closed with a bottom cap to form the closed chamber. The bottom cap has a hole for filling the closed chamber with a thermal storage substance for low temperatures and then the hole is sealed to prevent the thermal storage substance from leaking out. Acrylate resin copolymer is mixed with water and used as the low-temperature thermal storage substance. Further, a substance may also be added in the acrylate resin copolymer mixture for imparting freeze resistant properties thereto, and acting as an antiseptic.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: October 12, 1999
    Inventor: Yao-Ming Tsai
  • Patent number: 5948852
    Abstract: Process for preparing non-aqueous dispersions, wherein a liquid prepolymer is emulsified in a non-aqueous liquid, the droplet size of the emulsion is adjusted to 0.1 to 30 .mu.m and the droplet size distribution U.sub.90 is adjusted to less than 2 by means of a jet disperser, and the droplets are cured by a chemical reaction.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: September 7, 1999
    Assignee: GE Bayer Silicones GmbH & Co. KG
    Inventors: Eckhard Wendt, Robert Bloodworth, Markus Mechtel, Bernd Klinksiek, Olaf Halle
  • Patent number: 5945036
    Abstract: 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 dependent fluids support a dipole sufficient for the fluids to become significantly electroviscous only upon exposure of the aggregate to the second form of energy simultaneous with the electric potential.
    Type: Grant
    Filed: January 22, 1992
    Date of Patent: August 31, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Ronald P. Reitz
  • Patent number: 5942150
    Abstract: Polymers having repeating succinyl units, especially polyaspartic acids, are suitable for antifreezing compositions.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: August 24, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Lutz Heuer, Winfried Joentgen, Torsten Groth, Ralf-Johann Moritz
  • Patent number: 5942210
    Abstract: This invention relates to lyoprotection agents for protecting macromolecules during lyophilization or freeze-drying. In particular, methods for use of these lyoprotectants in conjugate formulations are disclosed. Additionally, this invention describes lyophilized instant kit formulations for the radiolabeling of pharmaceuticals and/or macromolecules.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: August 24, 1999
    Assignee: Cytogen Corporation
    Inventors: Michiel E Ultee, Charlotte A Burton
  • Patent number: 5916478
    Abstract: Heat-accumulating microcapsule dispersion includes a microcapsule provided as a small-diameter heat-accumulating material including organic compound functioning as heat accumulating material in association with a phase change thereof accommodated within a microcapsule, heat transfer fluid medium including a number of the microcapsules dispersed stably therein, and a number of thermal boundary layer stirring particles dispersed in the heat transfer fluid medium. The stirring particles has a volume average particle diameter between 0.1.times.D and 1.9.times.D relative to a layer thickness D of a thermal boundary layer formed inside a heat exchanging passage through which the dispersion is caused to flow. The particles stir the thermal boundary layer in association with movement thereof inside the heat exchanging passage.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 29, 1999
    Assignee: Osaka Gas Co, Ltd
    Inventors: Takatoshi Nakahira, Tetsuo Setoguchi, Masaaki Yoshikawa, Akira Kishimoto, Akio Chikazawa, Mamoru Ishiguro, Yasunori Nakanishi, Shigehiro Maeda, Yukihiko Akamatsu
  • Patent number: 5916477
    Abstract: Heat storage/heat radiation is effected by a method comprising conducting heat storage/heat radiation in an apparatus containing a heat storage material of a sugar alcohol in an oxygen depleted atmosphere. The latent heat storage material does not suffer from any charge either in melting point or in the heat storage capacity even after repeated use.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: June 29, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Kakiuchi, Masanori Yamazaki, Shoichi Chihara, Yasuhiro Terunuma, Yuichi Sakata
  • Patent number: 5910269
    Abstract: An electrorheological fluid composition is composed of a dispersed phase of dielectric solid particles and a dispersion medium of an electrically insulating solution, wherein the solution is composed of 99-75% by weight of silicone oil and 1-25% by weight of an organic compound having at least one unsaturated bond. The composition generates a large shear stress even under an electric field of relatively low intensity, and the concurrent current density is small. The composition shows excellent performances also in terms of its withstanding dielectric breakdown strength under an electric field of high intensity and the fluidity and re-dispersibility in the absence of an electric field. In the meantime, the composition has high durability of the generated shear stress and the current density.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: June 8, 1999
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Satoru Ono, Ryuji Aizawa, Yoshinobu Asako
  • Patent number: 5894000
    Abstract: An electro-rheological fluid composition is provided. A dielectric oil has particulate mixed therein. The particulate consists essentially of a polymeric sponge material entrapping an electro-rheological constituent such as water. The particulate is sized to remain in suspension when mixed in the dielectric oil.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 13, 1999
    Assignee: The United States of America as represented by the Secratary of the Navy
    Inventor: Luke W. Loy
  • Patent number: 5891356
    Abstract: A homogeneous electrorheological fluid is disclosed, which mainly comprises a liquid crystal compound in which a plurality of liquid crystal groups are bonded to a molecular chain either directly or via a spacer, or comprises a lyotropic liquid crystal comprising a solute and a solvent. The electrorheological fluid exhibits higher electrorheological effects as well as high response rate and low power driving properties while being free from sedimentation or flocculation.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: April 6, 1999
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Akio Inoue, Syunji Maniwa
  • Patent number: 5879582
    Abstract: An electrorheological fluid of a particulate phase and a continuous phase of a hydrophobic liquid medium, a certain dispersed particulate phase, and a low molecular weight polar material exhibits a broad effective temperature range. The dispersed particulate phase comprises a polar solid material which is capable of exhibiting substantial electrorheological activity only in the presence of a low molecular weight polar material, and an organic semiconductor. The weight ratio of the polar solid material to the organic semiconductor is at least about 2:1.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: March 9, 1999
    Assignee: The Lubrizol Corporation
    Inventors: Kathleen O. Havelka, Joseph W. Pialet
  • Patent number: 5863469
    Abstract: An electrorheological fluid comprising a lyotropic liquid crystalline polymer uniformly dissolved in a cyclic ketone solvent or a mixed solvent of a cyclic ketone solvent and at least one electrically insulating solvent selected from a hydrocarbon-based oil, an ester-based oil, and an ether-based oil.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: January 26, 1999
    Assignee: Nippon Oil Company Co., Ltd
    Inventors: Katsuhiko Haji, Makoto Sasaki, Mitsuo Matsuno
  • Patent number: 5858935
    Abstract: Power transmitting fluids, especially automatic transmission fluids, possess improved properties such as antiwear, durability, antioxidation, and shift-time performance by incorporation of high viscosity polyalphaolefins.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 12, 1999
    Assignee: Exxon Chemical Patents Inc
    Inventors: Raymond F. Watts, Manoj Tandon
  • Patent number: 5847246
    Abstract: A fluid heat transfer medium and process employing composite mixtures of monocyclic and bicyclic terpenes useful for heat transfer processes in a temperature range down to approximately -165.degree. F., where the fluid heat transfer medium maintains its liquid phase.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: December 8, 1998
    Assignee: Daniel J. Loikits
    Inventors: James T. Hsu, Daniel J. Loikits
  • Patent number: 5843331
    Abstract: 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 medium of the fluid. The polymer contains hydrophilic functionality, and in the polymer a portion of the low molecular weight polar activating material is sorbed in an amount which reversibly increases with increasing temperature.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: December 1, 1998
    Assignee: The Lubrizol Corporation
    Inventors: Barton J. Schober, Joseph W. Pialet, Robert A. Pollack, Denise R. Clark
  • Patent number: 5799626
    Abstract: Methods of using styrene oil, its fractions, and combinations thereof as working fluids, lubricants, fuels and solvents.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: September 1, 1998
    Inventors: Thomas E. Ponsford, Henry T. Ponsford
  • Patent number: 5800731
    Abstract: Homogeneous, electro-viscous fluids are provided which contain aluminum soaps based on products obtained by reacting one or more mono- or polycarboxylic acid(s) or the anhydrides or semi-esters thereof with reactive aluminum compounds, such as aluminum alcoholates. The aforesaid fluids manifest high electro-rheological effect and are completely homogeneous, and do not require a dispersant.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: September 1, 1998
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Dietrich Pirck, Hans-Dieter Grasshoff, Harald Kohnz, Peter Finmans, Tobias Carstensen, Dieter Jakubik, Wilfried Weber, Dieter Winkler
  • Patent number: 5766517
    Abstract: The present invention comprises a mixture of hydrocarbons having a well-defined chemical composition that is suitable for use as a dielectric coolant in electrical equipment in general, and specifically in transformers. The dielectric coolants of the present invention are particularly suited for use in sealed, non-vented transformers, and have improved performance characteristics, including decreased degradation of the paper insulating layers, as well as a greater degree of safety and environmental acceptability. The present dielectric coolants comprise relatively pure blends of compounds selected from the group consisting of aromatic hydrocarbons, polyalphaolefins, polyol esters, and natural vegetable oils, along with additives to improve pour point, increase stability and reduce oxidation rate.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: June 16, 1998
    Assignee: Cooper Industries, Inc.
    Inventors: Gary L. Goedde, Gary A. Gauger, John Lapp, Alan Paul Yerges
  • Patent number: 5750048
    Abstract: An electroviscous fluid comprising an electrically insulating liquid and solid electrolyte particles dispersed therein.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: May 12, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koji Shima, Eiji Hattori, Yasuo Oguri
  • Patent number: 5746934
    Abstract: A homogeneous electro rheological fluid is provided. The fluid comprises a lyotropic liquid crystalline polymer dissolved in a solvent in low concentrations in a manner in which the fluid does not exhibit a liquid crystalline state. According to the homogeneous electro rheological fluid of the present invention, the problem associated with the precipitation of particles can be circumvented. Moreover, the electro rheological fluid can provide a large difference in torque before and after the application of an electric field; therefore, exhibits good electro rheological properties.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: May 5, 1998
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Makoto Sasaki, Takafumi Ishii, Katsuhiko Haji
  • Patent number: 5725794
    Abstract: A color-stable antifreeze composition containing a polyhydric alcohol, a corrosion inhibitor and a poly(oxyalkylene)-substituted colorant having the structure ABXYZ, whereA is an organic chromophore;B is an electrophilic reactive group covalently bonded to A directly or through a linking group;X is a nucleophilic linking group covalently bonding B and Y;Y is a poly(oxyalkylene)-containing moiety; andZ is a terminal group for Y.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 10, 1998
    Assignee: Milliken Research Corporation
    Inventors: John D. Bruhnke, Steven E. Brown
  • Patent number: 5725793
    Abstract: The present invention proposes adding an alkaline solution or a mixture of two or more alkaline solutions to the agent system of absorption machines operating with ammonia or methylamine as the agent and water as the solvent. This addition of an alkaline solution or an alkaline solution mixture has a number of advantageous effects. These are, i.a.1. The dissolving respectively expelling heat of the agent is reduced, raising the output figure.2. The agent vapor generated is very pure. A dephlegmator is obviated.3. The alkaline solution makes steel surfaces inert when sealed from air and in a high vaccum, thereby obviating corrosion inhibitors.4. The viscosity of the solvent is reduced, decreasing pump operation.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: March 10, 1998
    Assignee: Universitat Siegan
    Inventors: Jurgen Keller, Ralf Peters
  • Patent number: 5723059
    Abstract: The dispersion of a solid material in a fluid is improved by modifying the density of the fluid to match the density of the solid material. The method of the present invention comprises the addition of about 1 to 25 weight percent of a saturated oligomer of at least one halocarbon to a slurry of microencapsulated phase change materials in a poly-alpha-olefin fluid to improve the dispersion of the microencapsulated materials in the fluid.
    Type: Grant
    Filed: May 21, 1996
    Date of Patent: March 3, 1998
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Carl E. Snyder, Jr.
  • Patent number: 5723060
    Abstract: 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 cation; A is SO.sub.3 M or SO.sub.2 R.sup.3, where R.sup.3 is alkylene-SO.sub.3 M; R.sup.1 is selected from the group consisting of hydroxy, C.sub.1-8 alkoxy, C.sub.1-8 alkyl, amino, sulfoxy, carboxy and R.sup.2 ; and R.sup.2 is NHR.sup.4, where R.sup.4 is triazine or triazine substituted with aminophenylsulfonate, chloro, dichloro, fluoro, or R.sup.2 is CO.sub.2 M.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 3, 1998
    Assignee: Milliken Research Corporation
    Inventors: John D. Bruhnke, Steven E. Brown
  • Patent number: 5718835
    Abstract: A heat storage composition characterized in that the composition is prepared by mixing a heat storage component with a component comprising a thermoplastic elastomer and synthetic or natural rubber in an amount of 0.5 to 30 parts by weight per 100 parts by weight of the heat storage component using mechanical means, the heat storage component comprising at least one of a wax having a main chain of hydrocarbon and at least 0.degree. in melting point and a higher monohydroxy alcohol having a melting point of at least 0.degree..
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 17, 1998
    Assignee: Mitsubishi Cable Industries
    Inventors: Chiaki Momose, Kiyoshi Nakagawara, Yuichi Hayashi
  • Patent number: 5714084
    Abstract: An electrorheological magnetic fluid including an electrically insulating liquid and fine particles dispersed therein is described, wherein the fine particles include a fine magnetic particle as a core, wherein the fine magnetic particle has a surface which is covered by an electroconductive substance, and the fine magnetic particle with its surface covered by the electroconductive substance is completely coated with a surfactant. A process for producing the electrorheological magnetic fluid is also described.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: February 3, 1998
    Assignees: Toyohisa Fujita, Nittetsu Mining Co., Ltd., Hitachi Powdered Metals Co., Ltd.
    Inventors: Toyohisa Fujita, Kenji Yoshino
  • Patent number: 5711897
    Abstract: An electrorheological fluid of a particulate phase and a continuous phase of a hydrophobic liquid medium, a certain dispersed particulate phase, and a low molecular weight polar material exhibits a broad effective temperature range. The dispersed particulate phase comprises a polar solid material which is capable of exhibiting substantial electrorheological activity only in the presence of a low molecular weight polar material, and an organic semiconductor. The weight ratio of the polar solid material to the organic semiconductor is at least about 2:1.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: January 27, 1998
    Assignee: The Lubrizol Corporation
    Inventors: Kathleen O. Havelka, Joseph W. Pialet
  • Patent number: 5705088
    Abstract: An electrorheological fluid comprising an electrically insulating liquid and acid, iodine or alcohol-treated, or iodine-treated and subsequently electrically insulating film-coated, dispersible carbonaceous particles dispersed therein has a high electrorheological effect even without lowering in a high temperature region, though it is a water-free system.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: January 6, 1998
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Yukio Kobayashi, Katsuhiko Haji
  • Patent number: 5700765
    Abstract: An additive system and method of use that significantly extend the service life of petroleum based hydraulic fluids, improve antiwear properties, improve demulsibility, condition and swell seals to prevent leaking, increase oxidation life, improve thermal stability, improve corrosion resistance, improve antifoam characteristics, reduce the acid number of used hydraulic oils, and exhibit improved shelf stability and improved low temperature performance when compared to additive systems previously known, the additive system containing as essential elements a stabilized zinc dialkyldithiophosphate, a substituted sulfolane, an alkyl phenol and an effective amount of a solvent alcohol component selected from C.sub.9 -C.sub.11 or C.sub.12 -C.sub.13 alcohols, or other suitable alcohol blends, with or without other suitable adjunctive solvents such as aromatics or aromatic/ketone blends.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: December 23, 1997
    Assignee: NCH Corporation
    Inventors: John Franklin Barnes, Karl N. Gutzke, Robert M. Hooks
  • Patent number: 5693367
    Abstract: A process for producing a powder material for an electro-rheological fluid is provided. The powder material is advantageously used for an electro-rheological fluid having a property, such as viscosity, which changes by application of an electric field. A powder material for an electro-rheological fluid having a uniform distribution of particle diameters and a uniform distribution of electric conductivity can be produced by embrittling a carbonaceous powder material, pulverizing and classifying the embrittled carbonaceous powder material to obtain a carbonaceous powder material having a uniform distribution of particle diameters, and carbonizing the powder material under an atmosphere of an inert gas.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: December 2, 1997
    Assignee: Bridgestone Corporation
    Inventors: Ryo Sakurai, Tasuku Saito
  • Patent number: 5683620
    Abstract: A mixture of a carbon-based hydrophobic base fluid, an electrorheologically active solid particle, and an aromatic hydroxy compound substituted with a hydrocarbyl group containing at least about 6 carbon atoms shows good dispersion characteristics and good electrorheological activity.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: November 4, 1997
    Assignee: The Lubrizol Corporation
    Inventor: Joseph W. Pialet
  • Patent number: RE35773
    Abstract: An electroreheological field comprising a dielectric particle as the dispersed phase, an insulating oil as the dispersing medium, and an additive, the additive being substantially insoluble in the dipersing medium, and being a composite containing a polysiloxane-containing structural unit (A), and at least one dispersed phase absorbing chain-containing structural unit (B) selected from the group consisting of an alkylene oxide chain-containing structural unit (B-1), a nitrogen atom chain-containing structural unit (B-2), and a long hydrocarbon chain-containing structural unit (B-3).
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: April 21, 1998
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Izuho Okada, Yoshinobu Asako, Kiyomi Arimatsu, Minoru Kobayashi, Satoru Ono, Ryuji Aizawa