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Tetrafluoro

Tetrafluoro-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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NEW Stretchable hydrophobic materials and methods for making the same
Battelle Memorial Institute
July 20, 2017 - N°20170204279

Hydrophobic materials, processes for their production, and uses thereof are described. The materials can be made with silica or polytetrafluoroethylene particles embedded into a liquid polymer. The hydrophobic materials are stretchable.
NEW Separation vessels for use in polymerization processes and methods for cleaning same
Exxonmobil Chemical Patents Inc.
July 20, 2017 - N°20170204207

Both a system and method for cleaning a low pressure separation vessel of a high pressure polyethylene polymerization plant are provided. The system includes a polytetrafluoroethylene lining that covers the interior surfaces of the vessel, and a cover mounting assembly including an annular clamp for detachably mounting a cover over the vessel. The mounting assembly includes a clamp actuator for ...
NEW Method for storing tetrafluoropropene and container for storing tetrafluoropropene
Exxonmobil Chemical Patents Inc.
July 20, 2017 - N°20170204029

A method for storing tetrafluoropropene in a gaseous-liquid state composed of a gas phase and a liquid phase in a closed container, wherein the oxygen concentration (content) in the above gas phase is adjusted to at least 3 vol ppm and less than 3,000 vol ppm at a temperature of 25° c.
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Heat store component and heat exchangers fitted therewith, in particular for flue gas cleaning systems ...
Elringklinger Ag
July 13, 2017 - N°20170198981

A heat store component for passage of a gas flow, in particular, in heat exchangers of flue gas cleaning systems, is provided, including: a mounting forming an inlet and an outlet side of the heat store component for the gas flow fed therethrough; and a first and a second heat storage medium arranged one behind the other in the gas ...
Method for making high-temperature winding cable
Vadd Tech Inc.
July 06, 2017 - N°20170194079

A method for making a high-temperature winding cable is winding a tinned copper line around a coaxial line, signal lines and power lines after being assembled together, lapping the rim of the tinned copper line with a packaging material of polytetrafluoroethene, and then, extruding an insulating layer of thermoplastic material on the rim of the packaging material, and finally, extruding ...
High efficiency air conditioning systems and methods
Honeywell International Inc.
July 06, 2017 - N°20170191702

Disclosed are refrigeration systems of the type having a heat source to be cooled and a heat sink into which heat can be rejected, said system preferably having a capacity of from about 2 to about 30 tons and comprising: (a) a heat transfer composition comprising a refrigerant comprising at least about 80% by weight of trans1-chloro-3,3,3-trifluoropropene (hcfo-1233zd(e)) or ...
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Tetrafluoro Patent Applications
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  • 195+ full patent PDF documents of Tetrafluoro-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Lithium battery electrolyte solution containing methyl (2,2,3,3,-tetrafluoropropyl) carbonate
Dow Global Technologies Llc
June 29, 2017 - N°20170187062

A battery electrolyte solution contains a lithium salt dissolved in a solvent phase comprising at least 10% by weight of methyl (2,2,3,3-tetrafluoropropyl) carbonate. The solvent phase comprises optionally other solvent materials such as 4-fluoroethylene carbonate and other carbonate solvents. This battery electrolyte is highly stable even when used in batteries in which the cathode material has a high operating potential (such ...
Sealing member
Racingbros International Incorporation
June 29, 2017 - N°20170184202

A sealing member includes an annular body and has a central hole. The body has an outer end and an inner end respectively formed on two ends of the central hole. At least one washer made of polytetrafluoroethylene is integrally connected to one of the outer and inner ends of the body. The body is made by rubber which provides ...
Azeotrope-like composition of 2-chlor0-3,3,3-trifluoropropene (hcfc-1233xf) and hydrogen fluoride (hf)
Honeywell International Inc.
June 29, 2017 - N°20170183278

Provided are azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (hcfo-1233xf) and hydrogen fluoride (hf). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (hfo-1234yf).
Friction material
Akebono Brake Industry Co., Ltd.
June 22, 2017 - N°20170175839

A friction material as a lining for a drum brake includes polytetrafluoroethylene and an acrylic rubber-modified phenol resin. In the friction material, the polytetrafluoroethylene is preferably included in an amount of 0. 1% by mass to 5% by mass, and the acrylic rubber-modified phenol resin is preferably included in an amount of 1% by mass to 15% by mass.
Self-lubricating composite friction part
H.e.f.
June 22, 2017 - N°20170175812

Disclosed is a self-lubricating composite friction part (1) that can be subjected, during operation, to temperatures that are at least equal to 250° c. The part includes, along the friction surface (2), a single layer of a material consisting of weft and warp yarns made of polytetrafluoroethylene, the material being impregnated with a thermostable resin having a glass transition temperature that is ...
Heat resistant, stain resistant, and anti-bacterial fabric and method of making same
Chefdry, Llc.
June 22, 2017 - N°20170175324

A high performance fabric comprised of a plurality of high-performance fibers coated with an anti-microbial compound and an anti-stain compound, where the high-performance fibers are polyester microfibers for comfort. The anti-microbial compound is a wash resistant non-organic antibacterial or a non-organic microbicidal. The anti-stain compound is hydrophobic or superhydrophobic, preferably polytetrafluoroethylene or silicone. Optionally, additional flame resistant fibers are interwoven ...
Heat transfer compositions of hydrofluorocarbons and a tetrafluoropropene
Arkema Inc.
June 22, 2017 - N°20170174966

The present invention relates to heat transfer compositions comprising 1,3,3,3-tetrafluoropropene, difluoromethane, pentafluoroethane, and 1,1,2,2-tetrafluoroethane for use in refrigeration, air-conditioning, heat pump systems, chillers, and other heat transfer applications. The inventive heat transfer compositions can possess reduced global warming potential while providing good capacity and performance.
Tetrafluoro Patent Pack
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Tetrafluoro Patent Applications
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For professional research & prior art discovery
inventor
  • 195+ full patent PDF documents of Tetrafluoro-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Process for the manufacture of 2,3,3,3-tetrafluoropropene by gas phase fluorination of pentachloropropane
Arkema France
June 22, 2017 - N°20170174589

The present invention provides a process of catalytic fluorination in gas phase of product 1,1,1,2,3-pentachloropropane or/and 1,1,2,2,3-pentachloropropane into product 2,3,3,3-tetrafluoropropene in presence of a catalyst.
Silicone free drug delivery devices
W. L. Gore And Associates, Inc.
June 22, 2017 - N°20170173267

A pre-filled syringe having containing therein at least one therapeutic is provided. The syringe contains a silicone free barrel and an elastomeric syringe stopper that is covered with an expanded polytetrafluoroethylene barrier layer. The presence of a barrier layer that is at least partially porous on the outside of the syringe stopper improves the seal between the stopper and syringe ...
Method of applying ptfe coating solution and vehicle part coated with ptfe coating solution
Kia Motors Corporation
June 15, 2017 - N°20170166773

A method of applying a ptfe (polytetrafluoroethylene) solution includes a dispersion step of dispersing a diamond powder in an organic solvent using bead milling to manufacture a dispersion solution, a mixing step of mixing a silane solution with the dispersion solution to manufacture a mixture solution, an addition step of adding the ptfe solution including ptfe particles having a size ...
Processes for coating substrates with polymers formed from trans-1,3,3,3-tetrafluoropropene and vinylidene difluoride
Honeywell International Inc.
June 15, 2017 - N°20170166772

The present invention generally relates to processes for coating substrates, preferably metals, with solutions having fluoro-copolymers that comprise trans-1,3,3,3-tetrafluoropropene monomers and vinylidene difluoride monomers and at least 50 weight percent of the fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers. The fluoro-copolymer has a surface energy below about 40 mj/m2. The surfaces of the substrates may be subjected to a phosphate treatment prior ...
Anti-glare, texture coating for packaging
Bemis Company, Inc.
June 15, 2017 - N°20170166752

An anti-glare, texture coating is described. The coating comprises an emulsion comprising (a) water, (b) a first particle comprising particles having an average particle size of greater than 0 but less than 10 microns and comprising acrylic beads, (c) an acrylic-based carrier and (d) a second particle comprising particles having an average particle size of from about 10 microns to about 125 microns and ...
Process for producing 2,3,3,3-tetrafluoropropene
Honeywell International Inc.
June 15, 2017 - N°20170166500

The instant invention relates to a process and method for manufacturing 2,3,3,3-tetrafluoropropene by dehydrohalogenating a reactant stream of 2-chloro-1,1,1,2-tetrafluoropropane that is substantially free from impurities, particularly halogenated propanes, propenes, and propynes.
Hollow fiber membranes formed from trans-1,3,3,3-tetrafluoropropene and vinylidene difluoride fluoropolymers
Honeywell International Inc.
June 15, 2017 - N°20170165613

Hollow fiber membranes comprising fluoro-copolymers, and processes of making and using the hollow fiber membranes are described. The fluoro-copolymers have a weight average molecular weight between about 100,000 and about 500,000 daltons. The fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers and vinylidene difluoride monomers, and at least 50 wt % of the fluoro-copolymer comprises trans-1,3,3,3-tetrafluoropropene monomers.
Process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (hcfc-244bb)
Honeywell International Inc.
June 08, 2017 - N°20170158585

The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (hcfc-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (hcfo-1233x1) with hydrogen fluoride, in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst. The hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more. The hcfc-244...
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