Patents Assigned to Arkema Inc.
  • Films and membranes of poly (aryl ketones) and methods of casting the same from solution
    Patent number: 10087295
    Abstract: A method of manufacturing a film or membrane includes: (a) dissolving at least one polymer comprising a poly(aryl ketone) in at least one solvent to form a dope; (b) depositing the dope on a substrate to form a coated substrate at appropriate conditions; and (c) drying the coated substrate to form the film or membrane. The dope may also include additional polymers or fillers, such as carbon nanotubes.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: October 2, 2018
    Assignee: Arkema Inc.
    Inventors: Christophe Roger, Manuel A. Garcia-Leiner, Jean-Alex Laffitte, Julie Boyer, Stephan Moyses, Lawrence H. Judovits
  • Battery based on organosulfur species
    Patent number: 10079405
    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, and/or as part of a functionalized porous polymer providing an intermediate separator element.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: September 18, 2018
    Assignee: Arkema Inc.
    Inventors: Gary S. Smith, Lijuan Wang
  • Use of R-1233 in liquid chillers
    Patent number: 10077388
    Abstract: This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of R-123 and R-11.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: September 18, 2018
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet
  • Stable formulated systems with chloro-3,3,3-trifluoropropene
    Patent number: 10072192
    Abstract: The present invention relates to formulated refrigerant systems of 1-chloro-3,3,3-trifluoropropene (R-1233zd) that are sufficiently thermally and chemically stable such that they can be effectively used sans additional stabilizers. The formulations of the present invention are particularly useful compositions for refrigeration, heat transfer and foam blowing.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: September 11, 2018
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Photovoltaic modules having a polyvinylidene fluoride backsheet
    Patent number: 10050164
    Abstract: The invention relates to a photovoltaic module for capturing and using solar radiation having as a backsheet a composition containing polyvinylidene fluoride. The polyvinylidene fluoride backsheet layer is exposed to the environment and provides chemical resistance, low water vapor transmission, electrical insulation, and UV light protection.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: August 14, 2018
    Assignee: Arkema Inc.
    Inventors: Michael T. Burchill, Jiaxin Jason Ge, Gregory S. O'Brien, Saeid Zerafati
  • Fibers sized with polyetherketoneketones
    Patent number: 10030333
    Abstract: Fibers sized with a coating of amorphous polyetherketoneketone are useful in the preparation of reinforced polymers having improved properties, wherein the amorphous polyetherketoneketone can improve the compatibility of the fibers with the polymeric matrix.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: July 24, 2018
    Assignee: Arkema Inc.
    Inventors: Christopher A. Bertelo, Gregory S. O'Brien
  • Methods for purifying and stabilizing hydrofluoroolefins and hydrochlorofluoroolefins
    Patent number: 10022576
    Abstract: Hydrofluoroolefins and hydrochlorofluoroolefins contaminated with acid and/or iron compounds are purified and stabilized by contacting the haloolefin with a solid adsorbent such as alumina and then combining the purified haloolefin with one or more stabilizers such as an epoxide. The purified, stabilized haloolefins thus obtained are useful in a wide variety of end-use applications, including, for example, as refrigerants, propellants, foaming agents, fire suppression or extinguishing agents, and solvents.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 17, 2018
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet
  • MANUFACTURE OF ORGANOPOLYSULFIDES AND SALTS THEREOF
    Publication number: 20180162810
    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: Application
    Filed: April 29, 2016
    Publication date: June 14, 2018
    Applicant: Arkema Inc.
    Inventors: George C. Fortman, Gray S. Smith
  • METHOD FOR PRODUCING FLUORINATED OLEFINS
    Publication number: 20180162795
    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 hydrofluoro carbon 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: Application
    Filed: June 1, 2016
    Publication date: June 14, 2018
    Applicant: ARKEMA INC.
    Inventor: Christopher A. Bertelo
  • Composite polymer modifiers
    Patent number: 9988524
    Abstract: The invention relates to composite polymer modifiers for thermoplastic resins, and especially for polyvinyl chloride (PVC). The composite modifier is an intimate blend of mineral filler and polymeric process aid, which is formed by the co-powderization of aqueous emulsions, suspensions or slurries of one or more mineral filler(s) and process aid(s). The resulting composite modifier provides more effective modification of the thermoplastic resin than by the use of the dried components formed separately. The composite modifier may also contain other co-powderized components such as impact modifiers, for additional benefits.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 5, 2018
    Assignee: Arkema Inc.
    Inventor: Lisa B. Rachwal
  • Photovoltaic module using PVDF based flexible glazing film
    Patent number: 9960300
    Abstract: The invention relates to flexible photovoltaic (PV) modules, and in particular to those having a polyvinylidene fluoride (PVDF) glazing layer. The PVDF layer may be a monolayer or a multi-layer structure.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: May 1, 2018
    Assignee: Arkema Inc.
    Inventors: Gregory S. O'Brien, Jiaxin Jason Ge
  • Antistatic thermoplastic starch alloys
    Patent number: 9957386
    Abstract: The invention relates to the use of an alloy of thermoplastic starch and a hydrophilic thermoplastic elastomer as an anti-static additive. The additive improves the anti-static properties of a polymer matrix.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: May 1, 2018
    Assignee: Arkema Inc.
    Inventor: Laurent B. Cartier
  • Coating compositions for improved block resistance
    Patent number: 9938424
    Abstract: The aqueous, substantially volatile organic compound (VOC)-free coating compositions of the invention include an acrylic latex and a vinyl acetate-ethylene latex including from about 10 to about 90 weight percent of a vinyl acetate-ethylene polymer, based on total weight of acrylic polymer and vinyl acetate-ethylene polymer, having a Tg from about ?20 to about 20 degrees Celsius; and from about 10 to about 90 weight percent of an acrylic polymer, based on the total weight of acrylic polymer and vinyl acetate-ethylene polymer, the acrylic polymer comprising, in polymerized form, at least one ethylenically unsaturated (meth)acrylic monomer and from about 0.01 to about 10 weight percent, based on total weight of the acrylic polymer, of an acetoacetate moiety containing monomer, where the acrylic polymer has a Tg of from about ?20 to about 20 degrees Celsius.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: April 10, 2018
    Assignee: Arkema Inc.
    Inventors: Wenjun Wu, Jeffrey A. Schneider, Albert R. Miner, II
  • Thixotropic anhydrous shear thinning peroxide dispersions
    Patent number: 9937473
    Abstract: Provided are dispersions which comprise more than about up to 55 percent by weight or more of an organic peroxide which is normally solid in an anhydrous liquid phase such as dibutyl maleate or dioctyl adipate, with about 5% by weight or more fumed silica to provide a thixotropic, storage stable organic peroxide paste. Addition of about 5 weight % or more of fumed silica was found to result in the formation of a shear thinning anhydrous dispersion of organic peroxide which was storage stable.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: April 10, 2018
    Assignee: Arkema Inc.
    Inventors: Joseph M. Gravelle, Thomas H. Kozel
  • Blowing agent composition of hydrochlorofluoroolefin and hydrofluoroolefin
    Patent number: 9914815
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234yf in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: March 13, 2018
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Philippe Bonnet, Maher Y. Elsheikh, Brett L. Van Horn
  • Method of selecting refrigerant-lubricant combinations
    Patent number: 9890312
    Abstract: The present invention provides methods for selecting refrigerant and lubricant combinations for use in heat transfer cycle systems and provides methods for operating said heat transfer systems. More particularly, the invention provides methods to select lubricant and refrigerant combinations for a heat transfer cycle system wherein at the lower temperatures of the heat transfer cycle the refrigerant and lubricant are miscible and at the upper temperatures of the heat transfer cycle the refrigerant and lubricant are phase separated and such that the density phase inversion temperature of the combination is below the upper operating temperature of the heat transfer cycle.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: February 13, 2018
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet
  • Method of obtaining a combination of Z and E stereoisomers of 1-chloro-3,3,3-trifluoropropene
    Patent number: 9890097
    Abstract: Disclosed are the combinations containing Z and E stereoisomers of hydrofluoroolefins where the more toxic isomer is less than about 30% weight of the combination (vs the sum of Z+E), to minimize the toxicity impact in the applications they will be used for such as cooling and heat fluids, foams blowing agents or solvents. Also disclosed are means to obtain combinations containing Z and E stereoisomers of hydrofluoroolefins.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: February 13, 2018
    Assignee: Arkema Inc.
    Inventors: Philippe Bonnet, Maher Y. Elsheikh
  • Method of improving stability of polyurethane polyol blends containing halogenated olefin blowing agent
    Patent number: 9868837
    Abstract: The present invention is directed towards a method of stabilizing thermosetting foam blends such as polyurethane poly blends containing a blowing agent with negligible (low or zero) ozone-depletion and low GWP based upon unsaturated halogenated hydroolefins in which one or more ester is added to the thermosetting foam blends. The thermosetting foam blends typically in clued: polyol(s); surfactant(s); catalyst(s); flame retardent(s); organic acid inhibitor(s)/stabilizer(s); carbon dioxide generating agent(s). The addition of the one or more esters to the thermosetting foam blends was unexpectedly found to result in blends which were stable over time and the resulted foams have a uniform cell structure with little or no foam collapse.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: January 16, 2018
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Joseph S. Costa, Philippe Bonnet
  • EXPANDED POLYMER POWDERS
    Publication number: 20180009961
    Abstract: The invention relates to small expanded polymer powder particles, and uses thereof. The expanded powder particles are formed by a non-melt process, resulting in individual expanded particles in the 5 to 100 micron range. The expanded powder particles are especially useful in cosmetic applications, as they provide a softer feel than a powder, and have a much higher surface area, making them highly absorbent for removing liquids and oils, as well as for use as excellent carriers and release agents for active ingredients.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 11, 2018
    Applicant: Arkema Inc.
    Inventors: Laurent B. CARTIER, Stephen SERPE
  • Peroxide dispersions
    Patent number: 9861119
    Abstract: The viscosity of aqueous dispersions of normally solid organic peroxides may be advantageously lowered through the use of surfactants which are polyglyceryl esters of C6-C12 fatty acids. The reduction in viscosity facilitates milling the peroxides to reduce particle size and also provides dispersions of small particle size peroxides which may be readily poured or pumped. The aqueous dispersions are useful as components of pharmaceutical, personal care, and cleaning products and the like and are effective decolorizing agents for food products, industrial products and the like.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 9, 2018
    Assignee: Arkema Inc.
    Inventors: Thomas H. Kozel, Joseph M. Gravelle, Timothy Belford, Tomas Salvador, Marina Despotopoulou