Patents Assigned to Arkema Inc.
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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 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 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 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
  • Shell and tube oxidation reactor with improved resistance to fouling
    Patent number: 9861948
    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: June 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Arkema Inc.
    Inventors: Michael S. Decourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • 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
  • PEROXIDE VULCANIZATION OF RUBBER LATEXES
    Publication number: 20170355785
    Abstract: A peroxide formulation includes at least one peroxide and at least one compound having a secondary amine group selected from amino acids, such as arginine, folic acid, and polyethyleneamines. The peroxide formulation is capable of curing an aqueous elastomer such as a latex in the full or partial presence of oxygen. Methods of using the peroxide formulation include dip-molding latex elastomer compositions.
    Type: Application
    Filed: October 27, 2015
    Publication date: December 14, 2017
    Applicant: Arkema Inc.
    Inventors: Peter R. Dluzneski, Leonard H. Palys, William P. Pavlek
  • Porous separation article
    Patent number: 9839881
    Abstract: The invention relates to a porous separation article having a fluoropolymer or polyamide binder interconnecting one or more types of interactive powdery materials or fibers. The interconnectivity is such that the binder connects the powdery materials or fibers in discrete spots rather than as a complete coating, allowing the materials or fibers to be in direct contact with, and interact with a fluid. The resulting article is a formed multicomponent, interconnected web, with porosity. The separation article is useful in water purification, as well as in the separation of dissolved or suspended materials in both aqueous and non-aqueous systems in industrial uses. The separation article can function at ambient temperature, as well as at elevated temperatures.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: December 12, 2017
    Assignee: Arkema Inc.
    Inventors: Sean M. Stabler, Thomas F. Roland, David A. Seiler, Ramin Amin-Sanayei, Walter Kosar
  • Latex binders useful in zero or low VOC coating compositions
    Patent number: 9834698
    Abstract: Latex binders useful for preparing zero or low VOC coating compositions having excellent freeze-thaw stability, good tint strength and good scrub resistance when cured may be obtained using a polymerizable polyalkylene glycol monomer such as polyethylene glycol methacrylate in combination with one or both of an emulsifier or a polymerizable polyalkylene glycol monomer containing bulky hydrophobic groups substituted on an aromatic ring.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: December 5, 2017
    Assignee: Arkema Inc.
    Inventors: Wenjun Wu, Michael C. Kaufman
  • Impact modified thermoplastic resin composition
    Patent number: 9834672
    Abstract: This invention relates to a thermoplastic resin composition having excellent impact resistance and molded appearance. The thermoplastic resin is a polycarbonate, polyester-based resin or a blend of polycarbonate and a polyester-based resin containing up to 30 percent by weight of at least one core-shell impact modifier having little or no styrene in the core.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: December 5, 2017
    Assignee: Arkema Inc.
    Inventor: Jason Ness
  • Tetrafluoropropene based blowing agent compositions
    Patent number: 9815955
    Abstract: The present invention relates to blowing agent compositions comprising tetrafluoropropene (HFO) and at least one co-blowing agent selected from carbon dioxide, water, alkanes and an alcohol used in the preparation of foamable thermoplastic compositions having low density. The HFOs include, but are not limited too, cis- and/or trans-1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO 1234yf), or mixtures thereof. The blowing agent compositions are useful in the production of low density insulating foams with improved R value.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: November 14, 2017
    Assignee: Arkema Inc.
    Inventor: Brett L. Van Horn
  • Dehydrofluorination of pentafluoroalkanes to form tetrafluoroolefins
    Patent number: 9809515
    Abstract: A method for producing a tetrafluoroolefin, such as 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprises dehydrofluorinating a pentafluoroalkane in a gas phase in the presence of a catalyst comprising chromium oxyfluoride. In a preferred embodiment, 2,3,3,3-tetrafluoropropene (HFO-1234yf) is produced by forming a catalyst comprising chromium oxyfluoride by calcining CrF3.xH2O, where x is 1-10, in the presence of a flowing gas comprising nitrogen to form a calcined chromium oxyfluoride, and dehydrofluorinating 1,1,1,2,2-pentafluoropropane (HFC-245cb) in a gas phase in the presence of the catalyst to form the 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: November 7, 2017
    Assignee: Arkema Inc.
    Inventors: Maher Y. Elsheikh, Philippe Bonnet, Olga C. N. Keeley, Benjamin Bin Chen