94 results about "Centistokes" patented technology

A medical article is provided including a chamber formed from a cyclic polyolefin having an inner surface in sliding engagement with an exterior surface of a sealing member, the inner surface of the chamber being coated with a first organopolysiloxane having a viscosity ranging from about 5,000 centistokes to about 100,000 centistokes; and a sealing member having an exterior surface coated with a second organopolysiloxane having a viscosity ranging from about 10,000 centistokes to about 500,000 centistokes, the coatings being adhered to the surfaces by crosslinking induced by irradiation with an isotope, electron beam, or ultraviolet radiation, as well as methods of reducing breakloose force, sustaining force, and/or sticktion between engaging surfaces in such articles.

A non-volatile lubricious coating composition is provided for use with medical devices, such as hypodermic needles, catheters, and the like. The coating composition includes a first siloxane polymer having a very low viscosity less than about 50 centistokes, a second siloxane polymer having a high viscosity greater than about 1,000 centistokes, a reactive silicone polymer which is capable of crosslinking upon exposure to radiation, such as a UV curable silicone acrylate, and a photoinitiator to accelerate cross-linking of the reactive silicone polymer. The coating composition may further include an aminofunctional siloxane polymer to promote adhesion to metal surfaces when used with needles. The coating composition provides flowability without the need for any volatile organic solvent, and is capable of curing to provide adhesion and lubricity.

The present invention is an eye preparation comprising a hydrophobic composition adapted for use on a contact lens inserted into a patient's eye and having a viscosity of 1 to 15,000 centistokes. The composition includes a silicone polymer, fluorinated silicone polymer, fluorocarbon polymer, fluorinated alcohol, or perfluorinated polyether composition, singly or blended, adapted to coat at least a portion of a contact lens inserted in a patient's eye. Silicone polymers for use in the invention include dimethicone, cyclomethicone, and silicone gums.

Topical anti-microbial compositions, and more particularly anti-bacterial and anti-fungal compositions, comprising a therapeutically effective amount of an anti-microbial agent, a starch, a hydroalcoholic solvent, and a volatile silicone compound having a viscosity of about 0.1 to about 50 centistokes. These compositions are capable of temporarily or permanently reducing, inhibiting, treating, ameliorating, or preventing microbial skin infections, as well as other related skin conditions. These compositions are further capable of restoring or repairing a skin lipid barrier of a mammal.

A paving asphalt composition for improving the durability and longevity of asphalt road surfaces is disclosed. The paving asphalt composition includes asphalt base stock, heavy residuum of re-refined motor oil, and a chemical modifier. The heavy residuum of re-refined motor oil preferably has an API gravity of at least about 12, a kinematic viscosity greater than about 400 centistokes at 140 DEG F., a flash point greater than about 400 DEG F. and a mass loss less than about 3%. The paving asphalt composition may also include a polymer. A method of forming the paving asphalt composition and a method of paving roads are also disclosed.

A charge transfer layer system that encapsulates or surrounds high viscosity silicone oils (polysiloxanes) using silicone microspheres, fluoropolymers such as polytetrafluoroethylene or inorganic particles such as silica, or metal soaps (zinc stearate). The encapsulation of the silicone oil results in aggregation or agglomeration of the silicone microspheres, fluoropolymers, or inorganic particles. The silicone oils have viscosity greater than 10,000 centistokes (cs) and the particles are about 6 μm or less.

This disclosure relates to compositions containing a) a silicone resin, b) a first silicone fluid having a viscosity from about 1 to about 15,000 centistokes at 25° C.; c) a second silicone fluid having a viscosity from about 1 to about 30,000 centistokes at 25° C.; d) an acrylic polymer; e) a hydrocarbon solvent; and f) water. The compositions of this disclosure provide long lasting hydrophobic coatings with high water contact angles for automotive surfaces, in which the hydrophobic automotive surfaces possess self-cleaning functions, e.g., water and dirt repellency. This disclosure also relates to methods for treating automotive surfaces and to automotive surfaces coated with the compositions.

The invention provides a personal care product that does not contain a lower viscosity silicone fluid; the personal care product includes at least one polyol polyester that is the esterification reaction product of a polyol having three to six carbons atoms and a carboxylic acid having three to six carbon atoms and a personal care formulation. Also provided are replacement compositions for use in personal care products that are at least one polyol polyester that is the esterification reaction product of a polyol having three to six carbons atoms and a carboxylic acid having three to six carbon atoms and having a kinematic viscosity of about 2 to about 20 centistokes at 25° C. and wherein the replacement composition does not contain a low viscosity silicone fluid. Related methods are also described.

Disclosed is a fuel additive concentrate having a high flash point which is characterized by a viscosity controlled for dosing in a Bernoulli feed device. The concentrate is high temperature stable and is in a form suitable for on-board dosing of fuel which can provide predictable feed rates from a feed device. It comprises a fuel soluble platinum group metal composition and/or a fuel soluble or dispersible cerium composition and/or a fuel soluble or dispersible iron compound and a high flash aromatic solvent. The solvent and the metal composition or compositions are present in relative amounts to provide a FBC concentrate having a flash point (ASTM D93-85) of greater than 140° F. and, a preferred kinematic viscosity within the range of from 7 to 25 centistokes, as measured by ASTM D445 at 105° F.

The present invention provides a room-temperature-curable polyorganosiloxane composition which can become a silicone rubber with matte surface and is free from deterioration in physical properties. Specifically, the room-temperature-curable polyorganosiloxane composition comprises:

• • (A) 100 parts by weight of a substantially straight-chain polyorganosiloxane having a viscosity of 20 to 1,000,000 centistokes at 25° C., and having a molecular chain terminal being sealed with a silanol group or a silicon atom-bonded hydrolyzable group;
  • (B) 0.1 to 15 parts by weight of an organic silicon compound having 3 or more silicon atom-bonded hydrolyzable groups in a single molecule;
  • (C) 0 to 15 parts by weight of a condensation reaction catalyst;
  • (D) 100 to 400 parts by weight of a non-treated ground calcium carbonate or a ground calcium carbonate surface-treated with resin acid; and
  • (E) 1 to 200 parts by weight of a non-treated precipitated calcium carbonate or a precipitated calcium carbonate surface-treated with resin acid,
  • wherein at least one of (D) component and (E) component is required to be treated with resin acid, and
  • wherein the amount of (D) component relative to the sum of (D) component and (E) component is within the range of 50 to 99.9% by weight.

A power transmission fluid having improved characteristics, a method of lubricating a transmission, and a vehicle containing the transmission fluid is disclosed. The transmission fluid includes an amount of silicon-containing antifoam agent having a kinematic viscosity of greater than about 20,000 centistokes at 25° C. that is effective to provide gear shifting times of no more than about 0.75 seconds over a useful lifetime of the transmission fluid.

The invention discloses lubricating oil for rotary kiln wheel belts and a method for preparing the same. The lubricating oil can be used to solve the problem that the lubricating performance of the rotary kiln wheel belts is undesirable in severe environments, has high wear resistance and high temperature resistance. The maximum use temperature of the lubricating oil can reach 600 DEG C, and therefore the lubricating oil can form a high-strength high-temperature protective lubricating firm to prevent vibration, distortion and deformation of rotary kilns and falling of flame-retarding bricks and to prolong the service life of the rotary kilns. The easy method for preparing the lubricating oil can improve working efficiency and product quality obviously and save lots of energy, and is convenient to promote. The lubricating oil for rotary kiln wheel belts comprises the following components in percentage by mass: 49 to 69 percent of poly-alpha-olefin, 10 to 30 percent of composite calcium-base grease, 10 to 40 percent of composite metal soap, 2 to 5 percent of nano colloidal molybdenum disulfide powder, 2 to 4 percent of colloidal graphite powder, 1.5 to 3 percent nano soft metal powder and 5 to 6 percent of flame retarder, wherein the total percentage of the components is 100 percent. The kinematic viscosity of poly-alpha-olefin synthetic oil at 100 DEG C is 40 to 80 centistokes, and the open flash point of the poly-alpha-olefin synthetic oil is not less than 320 DEG C.

A fuser member having a substrate, a layer thereover including a polymer, and, on the polymeric layer, a coating of a release agent having a mixture of (a) an organosiloxane polymer concentrate containing amino-substituted organosiloxane polymers, wherein there are amino functional groups on at least some of the polymer molecules of the concentrate, the concentrate has a degree of functionality of from about 0.3 to about 0.4 mole percent, the concentrate has a viscosity of from about 800 to about 1,300 centistokes; and (b) a nonfunctional organosiloxane polymer diluent, the diluent has a viscosity of from about 100 to about 2,000 centistokes; the mixture has a degree of functionality of from about 0.05 to about 0.3 mole percent, wherein the mixture has a viscosity of from about 550 to about 1,300 centistokes, and wherein the ratio by weight of concentrate to diluent is from about 1:2 to about 1:30, and an image forming apparatus having the fuser member.

A high temperature lubricant composition for lubricating conveyored oven chains and other high temperature applications comprises at least one polyol polyester polymer and optionally at least one additive. The polyol polyester polymer can be made from esterification of at least one polyol, at least one dicarboxylic acid and at least one monocarboxylic acid. Optionally, at least one polyol polyester, at least one extreme pressure/antiwear agent and/or at least one metal deactivator is added to the final lubricant composition. The lubricant has a kinematic viscosity @40° C. of from about 50 to about 1,000 centistokes, a viscosity index of at least about 140, and a flash point of at least about 270° C. The lubricants have low evaporation loss, high resistance to oxidation, and provide reduction of friction when used in high temperature lubricant applications. Methods of applying the composition to conveyored oven chains include, but are not limited to, spraying, dipping, brushing, manually applying and combinations thereof.

Disclosed herein is a composition comprising a formula emulsion wherein the formula emulsion comprises a cationic or amphoteric surfactant, a wax emulsion, a thickener, and at least two silicone oils having different viscosities, wherein the composition is free of abrasives and organic solvents. The weighted average viscosity of the silicone oils is 2200 to 2400 centistokes (cSt).

Hair care composition comprising an aminosilicone having a viscosity of from about 1,000 centistokes to about 1,000,000 centistokes, and less than about 0.5% nitrogen by weight of the aminosilicone; a silicone copolymer emulsion with an internal phase viscosity of greater than about 120 x 106 centistokes, as measured at 25 DEG C; and a gel matrix comprising a cationic surfactant; a high melting point fatty compound; and an aqueous carrier.

The present invention is directed to a traction coefficient reducing lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity comprising a blend of two or more isomerized Fischer-Tropsch derived base oils wherein the kinematic viscosity of the blend is in a range from about 2 to about 14 centistokes at 100° C., and (b) one or more lubricating oil additives wherein the lubricating oil composition is essentially free of friction modifiers. The present invention is also directed to a method for reducing the traction coefficient in internal combustion engines comprising lubricating the internal combustion engines with a lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity comprising a blend of two or more isomerized Fischer-Tropsch derived base oils wherein the kinematic viscosity of the blend is in a range from about 2 to about 14 centistokes at 100° C., and (b) one or more lubricating oil additives wherein the lubricating oil composition is essentially free of friction modifiers.

A method of operating a turbo charged diesel engine is provided where a viscosity increasing component in a diesel fuel composition is used, to improve the acceleration performance, at low engine speeds (for example up to 2200 rpm). This method may be used for reducing the engine speed at which the turbo charger reaches its maximum speed when accelerating at low engine speeds, or reducing the time taken for the turbo charger to reach its maximum speed. It may mitigate a deterioration in the acceleration performance of the engine due to another cause. The VK 40 of the resultant fuel composition is suitably 2.8 mm²/s (centistokes) or greater. The viscosity increasing component may in particular be a Fischer-Tropsch derived fuel component, an oil or a fatty acid alkyl ester. A density increasing component may be used in the fuel composition together with the viscosity increasing component.

Emulsions and products thereof are provided. The emulsions at least include an oil component having a viscosity that is 150 centistokes at 40° C. or greater, a surfactant, and water. The emulsion components are processed by mixing with multiple and simultaneous mixing operations including at high and low shear mixing rates. The emulsions can be utilized in a variety of products including lubricants and concentrates thereof suitable for use in a number of applications including lubricant-based applications, such as metal working processes.

The invention discloses an online monitoring dry type cable terminal with a composite external casing and an on-site assembling method thereof. The assembling method comprises the following steps of: making the end part of a cable pass through a base and sectioning the external layer of a cable core; assembling an outlet hardware at the end part of the cable core, and sleeving a silicon rubber stress cone on a cut-off position of main insulation and external shielding of the cable; assembling a photoelectric grating sensor in a preset installation space of the stress cone, and making a transmission optical fiber, connected with the photoelectric grating sensor, pass through the base and stretch to the external side of the cable terminal; enabling the end part of the cable to be penetratedin the silicon rubber casing and the stress cone to be located in the cashing, and filling vulcanized silicone rubber with viscosity of 1,500-1500,000 centistokes into a gap between the cable and thecasing; after the surface of the liquid vulcanized silicone rubber is cured, assembling a cover plate and a shielding hood. After the liquid vulcanized silicone rubber is cured completely, the cover plate and the shielding hood are assembled, and the outlet hardware and the wiring hardware are assembled at the core end part, the dry type cable terminal is formed.

A SAW filter comprising an input transducer and an output transducer fabricated on a piezoelectric substrate and an epoxy based photo-definable acoustic absorber on the substrate for suppressing unwanted acoustic waves. The photo-definable acoustic absorber has a viscosity in a range from about 50 centistokes to 12000 centistokes and a thickness from about 10 microns to 120 microns. One acoustic absorber includes an SU-8 family member epoxy.

An anhydrous aerosol antiperspirant composition comprising a concentrate comprising at least about 40%, by weight of the concentrate, of an alcohol; an antiperspirant active dissolved in the alcohol; and at least one volatile silicone oil that is miscible in the alcohol and antiperspirant active solution and that has a viscosity of less than 10 centistokes at 25° C.