Patents Assigned to Arkema Inc.
  • Control of a process for the purification of (meth)acrylic acid using on-line, near IR analysis
    Patent number: 10294185
    Abstract: An improved process for the manufacture of technical grade (meth)acrylic acid, e.g., acrylic acid, the process comprising producing a hydrated reaction product from the gas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followed by first dehydrating and then concentrating the reaction product, the improvement comprising controlling at least one of the water, acetic acid and (meth)acrylic acid content of the reaction product during the purification of the reaction product using on-line, near IR spectroscopy.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: May 21, 2019
    Assignee: Arkema Inc.
    Inventors: Timothy D. Ligon, Olan S. Fruchey, Christopher T. Reeves, Fungau Ho, Roger L. Roundy, William G. Etzkorn, Mahmood N. A. Jawaid, Patrick M. Wiegand
  • Latex comprising water-soluble acrylic modified alkyd dispersion and method of production thereof
    Patent number: 10294320
    Abstract: A latex particle comprises an interior core and an outer shell. The core comprises an acrylic or vinyl polymer, and the shell comprises a water soluble alkyd polymer and at least one surfactant. Substantially all or all of the alkyd polymer is present in the shell of the latex particle and substantially none or none or the alkyd polymer is present in the core of the latex particle. Also described is a process for making the latex particle wherein the water soluble alkyd polymer is present as a co-surfactant during polymerization.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 21, 2019
    Assignee: Arkema Inc.
    Inventors: Kyu-Jun Kim, Daniel E. Stark, Jeffrey P. Arendt
  • Compositions and methods for breaking hydraulic fracturing fluids
    Patent number: 10294414
    Abstract: A breaker composition for use in a fracturing fluid comprises water, at least one peroxide (e.g., tert-butyl hydroperoxide), and optionally at least one alcohol (e.g., propylene glycol and/or a butyl alcohol). The peroxide(s) and optional alcohol(s) are present in amounts effective to reduce the viscosity of a fracturing fluid at a temperature of 90-300 F. (the “breaking temperature”), and to prevent rehealing of the fracturing fluid, i.e., to maintain the reduced viscosity for a period of time after the temperature is reduced from the breaking temperature to a temperature below the breaking temperature (e.g., after the temperature is reduced from the breaking temperature to room temperature).
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: May 21, 2019
    Assignee: Arkema Inc.
    Inventors: Marina Despotopoulou, Leonard H. Palys, Michael B. Abrams, Joseph M. Brennan, Scot A. Swan
  • Shell and tube oxidation reactor with improved resistance to fouling
    Patent number: 10286374
    Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 14, 2019
    Assignee: Arkema Inc.
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Adsorption systems using metal-organic frameworks
    Patent number: 10266737
    Abstract: The present invention relates to sorbants such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), porous aromatic frameworks (PAFs) or porous polymer networks (PPNs) for separations of gases or liquids, gas storage, cooling, and heating applications, including, but not limited to, adsorption chillers.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: April 23, 2019
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Christopher A. Bertelo, Gary S. Silverman, B. Peter McGrail, Praveen K. Thallapally, Radha K. Motkuri, Jeromy J. Jenks
  • Vinylidene fluoride / 2,3,3,3-tetrafluoropropene copolymers
    Patent number: 10259899
    Abstract: This invention relates to copolymer compositions of poly(vinylidene fluoride-2,3,3,3-tetrafluoropropene) copolymers. The copolymers formed have excellent optical properties, corrosion resistance and electrical properties, with very low haze. Tetrafluoropropene monomer units may be present at from 0.5 to 60 weight percent of the copolymer.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: April 16, 2019
    Assignee: ARKEMA INC.
    Inventors: Mehdi Durali, David A. Mountz
  • 3-D printed fluoropolymer structures
    Patent number: 10259936
    Abstract: The invention relates to fluoropolymer filament for use in 3-D printing, and 3-D printed fluoropolymer articles having low warpage, excellent chemical resistance, excellent water resistance, flame resistance, and good mechanical integrity. Additionally, the articles of the invention have good shelf life without the need for special packaging. In particular, the invention relates to filament, 3-D printed polyvinylidene fluoride (PVDF) articles, and in particular material extrusion 3-D printing. The articles may be formed from PVDF homopolymers, copolymers, such as KYNAR® resins from Arkema, as well as polymer blends with appropriately defined low shear melt viscosity. The PVDF may optionally be a filled PVDF formulation. The physical properties of the 3-D printed articles can be maximized and warpage minimized by optimizing processing parameters.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: April 16, 2019
    Assignee: Arkema Inc.
    Inventors: David Shin-Ren Liu, Gregory S. O'Brien, David A. Seiler
  • Method for producing fluorinated olefins
    Patent number: 10259761
    Abstract: Fluorinated olefins are produced in a reductive coupling reaction by contacting a first reactant with a second reactant in the gas phase under an inert atmosphere at a temperature of at least 500 C. The first reactant may be, for example, a hydrofluorocarbon containing one or two carbon atoms, while the second reactant may be, for example, a two to four carbon hydrohalocarbon (e.g., a hydrofluorocarbon) or hydrocarbon.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 16, 2019
    Assignee: ARKEMA INC.
    Inventor: Christopher A. Bertelo
  • Battery based on organosulfur species
    Patent number: 10243237
    Abstract: Metal-sulfur batteries, such as lithium-sulfur batteries, are prepared using one or more organosulfur species such as organic polysulfides and organic polythiolates as part of the liquid or gel electrolyte solution, as part of the cathode, as part of the anode (or used to treat the anode), and/or as part of a functionalized porous polymer providing an intermediate separator element.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 26, 2019
    Assignee: Arkema Inc.
    Inventors: Gary S. Smith, Lijuan Wang, George C. Fortman
  • Nanodiamond coatings for solar cells
    Patent number: 10224867
    Abstract: A nanodiamond coating for use on a solar cell, the coating including a nanodiamond material suspended in a liquid, wherein the nanodiamond material has a size range from about 1 nm to about 10 nm. Methods for improving the efficiency of a solar cell are provided, including, mixing a nanodiamond material with a liquid polymer or non-polymer solvent to form a nanodiamond-polymer suspension, forming a coating of the suspension on a top surface of a solar cell, and drying the coating such that a dried nanodiamond-polymer layer remains bonded to the solar cell. Useful nanodiamond coating compositions may include a nanodiamond material, a fluoropolymer, a liquid solvent for the fluoro-polymer and at least one additive selected from the group consisting of dispersing agents, adhesion promoters, and coupling agents. The fluoropolymer may also be used in the form of an aqueous dispersion.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: March 5, 2019
    Assignee: Arkema Inc.
    Inventors: Christopher A. Bertelo, Scott R. Gaboury, Ronald H. Partridge
  • FUNCTIONALIZED ACRYLIC PROCESS AIDS USED FOR GLOSS AND SURFACE FINISH MODIFICATION
    Publication number: 20190055389
    Abstract: A method of reducing gloss that results in a polyvinyl chloride (PVC) component that exhibits a reduced level of surface gloss; wherein, the PVC or other thermoplastic resin component comprises: a PVC resin; one or more process aids comprising at least one base polymer with one or more of the process aids being functionalized with about 0.5 wt. % to about 35 wt. % of a reactive epoxy, hydroxyl, or carboxylic acid functional group based on the total weight of the process aids; and optionally, at least one impact modifier. The PVC or other thermoplastic resin component exhibits a gloss reduction of at least 5 points measured at an angle of 85 degrees or less when compared to a similar PVC component in which the process aids are not functionalized.
    Type: Application
    Filed: March 23, 2017
    Publication date: February 21, 2019
    Applicant: Arkema Inc.
    Inventors: Kevin R. Yocca, David A. MOUNTZ, Jason M. LYONS
  • Low viscosity, water-borne, acrylic modified alkyd dispersion and method of production thereof
    Patent number: 10174135
    Abstract: A water-borne, urethane and acrylic modified alkyd dispersion, wherein the dispersion is substantially surfactant free and has less than 1 weight % volatile organic compounds (VOCs) is described. Additionally, a method for preparing a water-borne, substantially surfactant free, urethane and acrylic modified alkyd dispersion, with less than 1 weight % VOC, is described. In the method, an acrylic modified alkyd polymer is reacted with a basic compound in water to form an acrylic modified alkyd dispersion having a first viscosity and then a hydrophobic seed is added thereto to form a urethane and acrylic modified alkyd dispersion having a second viscosity, which is substantially less than the first viscosity.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 8, 2019
    Assignee: Arkema Inc.
    Inventor: Kyu-Jun Kim
  • Activation and regeneration of fluorination catalysts, and fluorination process
    Patent number: 10166538
    Abstract: A fluorination catalyst such as a chromium oxide-based fluorination catalyst may be activated or reactivated by contacting the catalyst. with a source of reactive fluorine, for example nitrogen trifluoride (NF3) or fluorine (F2). Fluorinated compounds may be prepared by the gas phase reaction of hydrogen fluoride (HF) with various substrates such as chlorinated compounds. A number of metal oxide-based catalysts have been developed for this purpose.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: January 1, 2019
    Assignee: Arkema Inc.
    Inventors: Robert G. Syvret, Patrick K. Janney, Sri R. Seshadri
  • Fluoropolymers
    Patent number: 10160820
    Abstract: The invention relates to novel linear, semi-crystalline fluoropolymers containing 0.5 to 25 mole percent of at least one vinyl ester monomer unit. At least 40 mole percent of the vinyl ester monomer units are present in the copolymer as single monomer units (not diads or triads or greater) between two fluoromonomer units. The invention also relates to a process for forming the fluoromonomers/vinyl ester copolymer. The fluoropolymer of the invention may be used in applications benefiting from a functional fluoropolymers including as a binder, or for use in forming hydrophilic membranes and hollow fibers.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: December 25, 2018
    Assignee: Arkema Inc.
    Inventor: Ramin Amin-Sanayei
  • Chemical resistant evaporation control structures
    Patent number: 10155619
    Abstract: The invention relates to chemically resistant structures that float on top of a liquid to reduce the level of evaporation from the liquid. The liquid could be in a small container or vat, or in a larger pool, pond, or reservoir. The structure is preferably a foamed material of a polyamide or fluoropolymer, or may be a hollow or foamed structure having a polyamide or fluoropolymer outer layer. The structures covering the liquid may consist of a single structure or two or more discrete structures that partially or fully cover the surface of a liquid. The covering is especially useful where the fluid contains toxic, reactive or corrosive substances. One preferred structure is a polyvinylidene fluoride foam structure (such as a KYNAR from Arkema Inc) at about 0.1-36 inches in length/diameter.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 18, 2018
    Assignee: Arkema Inc.
    Inventors: Sean M. Stabler, Leo T. Hutton, David A. Seiler
  • Fluorosilicon nitrile compounds
    Patent number: 10155778
    Abstract: Novel fluorosilicon nitrile compounds, and methods of preparing them, are described. The fluorosilicon nitrile compounds are characterized by having a total of four substituents attached to a silicon atom, wherein one or two of the substituents are fluorine atoms, one or two of the substituents are cyanoalkyl groups, which are the same as or different from each other, and the remainder of the substituents, if any, are alkyl groups, which are the same as or different from each other.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: December 18, 2018
    Assignee: Arkema Inc.
    Inventors: Robert George Syvret, Craig Alan Polsz
  • Promoters for peroxides in aqueous treatment fluids
    Patent number: 10138413
    Abstract: The addition of at least one promoter selected from the group consisting of thiosulfate salts, sulfite salts, bisulfite salts, erythorbate salts, isoascorbate salts, and combinations thereof to an aqueous treatment fluid containing a viscosifying polymer and a peroxide helps to promote the activity of the peroxide as a breaker, thus facilitating a reduction in viscosity of the aqueous treatment fluid at lower temperatures than are possible in the absence of the promoter. The promoted aqueous treatment fluid is useful as a fracture fluid to fracture subterranean formations in oil and gas recovery.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: November 27, 2018
    Assignee: Arkema Inc.
    Inventors: Joseph M. Brennan, Jason M. Lyons, Leonard H. Palys
  • Process and system for producing acrylic acid
    Patent number: 10112885
    Abstract: A process for recovering (meth)acrylic acid includes distilling a mixture comprising (meth)acrylic acid in a finishing column at less than atmospheric pressure to produce a finishing column overhead stream and a finishing column bottoms stream. An overhead aspirating direct contact condenser system at least partially condenses the finishing column overhead stream to form a finishing column overhead condensate and an overhead non-condensables vent stream. A finishing column vapor-phase side draw may also be recovered. An aspirating direct contact condenser system may be used to at least partially condense the vapor-phase side draw.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: October 30, 2018
    Assignee: Arkema Inc.
    Inventor: Michael S. Decourcy
  • Tetrafluorobutene blowing agent compositions for polyurethane foams
    Patent number: 10113046
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is 2,4,4,4-tetrafluorobutene-1 alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), or a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 30, 2018
    Assignee: ARKEMA INC
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Philippe Bonnet
  • Manufacture of organopolysulfides and salts thereof
    Patent number: 10093619
    Abstract: A method of producing an organopolysulfide or salt thereof is provided which includes a step of mixing an organomonosulfide or salt thereof and elemental sulfur, wherein the mixing is carried out at a temperature not greater than 95 C and in the absence of any added liquid phase for a time effective to produce the organopolysulfide or salt thereof. The described method makes possible the preparation of organopolysulfides and organopolysulfide salts without the use of solvent or catalyst.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: October 9, 2018
    Assignee: Arkema Inc.
    Inventors: George C. Fortman, Gary S. Smith