Patents Assigned to Arkema Inc.
  • Multi-layer breathable films
    Patent number: 9452595
    Abstract: The invention relates to a breathable multi-layer film with at least one layer containing a breathable resin, such as block copolymers with polyether blocks, and one layer containing a soft polymer (Tg<0° C.), such as a polyolefin. The film is selectively permeable to water vapor but not permeable to water. The film can be bonded to a woven or non-woven substrate to produce a breathable fabric.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: September 27, 2016
    Assignee: Arkema Inc.
    Inventors: Laurent B. Cartier, Fabrice R. Chopinez
  • High melting fluoropolymers
    Patent number: 9447214
    Abstract: The invention relates to a method for making copolymers of 2,3,3,3-tetrafluoropropene and vinylidene fluoride by an emulsion polymerization process having unexpectedly high melting temperatures, even at low crystallinity levels. The invention involves adjusting the microstructure of the copolymers through a controlled polymerization to obtain controlled microstructure copolymers with unique properties, including those with high melting temperature and low crystallinity.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: September 20, 2016
    Assignee: Arkema Inc.
    Inventors: Ramin Amin-Sanayei, Caiping Lin
  • Method of producing fluoropolymers using alkyl sulfate surfactants
    Patent number: 9447256
    Abstract: The invention relates to methods of polymerizing fluoromonomers using non-fluorinated surfactants, in particular to emulsion polymerization method for producing fluoropolymer latex. Specifically, the method of polymerization uses one or more alkyl sulfate surfactants.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 20, 2016
    Assignee: Arkema Inc.
    Inventors: Ramin Amin-Sanayei, Lotfi Hedhli, Mehdi Durali, Roice A. Wille
  • Shell and tube oxidation reactor with improved resistance to fouling
    Patent number: 9440903
    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: October 16, 2012
    Date of Patent: September 13, 2016
    Assignee: Arkema Inc.
    Inventors: Michael S. DeCourcy, John L. Steinbach, Nicolas Dupont, Roger L. Roundy
  • Method of producing fluoropolymers using acid-functionalized monomers
    Patent number: 9434837
    Abstract: A fluoropolymer latex is obtained by emulsion polymerization of one or more fluoromonomers in the presence of one or more acid-functionalized monomers such as vinyl sulfonic acid or a salt thereof. A fluorosurfactant need not be present.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: September 6, 2016
    Assignee: Arkema Inc.
    Inventors: Mehdi Durali, Lotfi Hedhli
  • Ultra-high molecular weight poly(vinylidene fluoride)
    Patent number: 9434797
    Abstract: The invention relates to a polyvinylidene fluoride polymer having an ultra-high molecular weight, and unexpected physical properties. The ultra-high molecular weight polymer is clear, has a lower melting point, reduced crystallinity, excellent impact resistance, and a high elongation at the yield point. The ultra-high molecular weight polyvinylidene fluoride can be alone, or blended with other polymers, in final applications and articles.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: September 6, 2016
    Assignee: Arkema Inc.
    Inventor: Ramin Amin-Sanayei
  • Polyetherketoneketone nonwoven mats
    Patent number: 9422654
    Abstract: The invention provides nonwoven mats comprising polyetherketoneketone fibers or mixtures thereof. Also provided are filters, textiles, blankets, and insulation prepared from polyetherketoneketone nonwoven mats, as well as methods for manufacturing the same.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: August 23, 2016
    Assignee: Arkema Inc.
    Inventors: Gilbert W. Rudman, Gregory S. O'Brien, Christopher A. Bertelo
  • Use of R-1233 in liquid chillers
    Patent number: 9404678
    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: February 25, 2014
    Date of Patent: August 2, 2016
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet, Laurent Abbas
  • Irradiated fluoropolymer articles having low leachable fluoride ions
    Patent number: 9403960
    Abstract: The invention relates to fluoropolymer articles that have been irradiated with at least 5 Kilo Gray of radiation, where the resulting articles have low levels of leachable or extractable fluoride ion. The low fluoride ion migration from the irradiated article is due to the presence of low levels of metallic salts or oxides in the fluoropolymer composition. The invention is especially useful for fluoropolymer articles in which the fluoropolymer layer contacts a biological or pharmaceutical fluid, and that are subjected to sterilization by irradiation.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 2, 2016
    Assignee: Arkema Inc.
    Inventor: Saeid Zerafati
  • High purity electrolytic sulfonic acid solutions
    Patent number: 9399618
    Abstract: Disclosed is a solution for an electrochemical process, the solution containing a sulfonic acid and having a low concentration of sulfur compounds, either low or high valence, that are susceptible to reduction and which is intended for use in electrodeposition, batteries, conductive polymers and descaling processes.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 26, 2016
    Assignee: Arkema Inc.
    Inventors: Nicholas M. Martyak, Martin Nosowitz, Gary S. Smith, Patrick Kendall Janney, Jean-Marie Ollivier
  • THIXOTROPIC ANHYDROUS SHEAR THINNING PEROXIDE DISPERSIONS
    Publication number: 20160136601
    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: Application
    Filed: November 18, 2015
    Publication date: May 19, 2016
    Applicant: Arkema Inc.
    Inventors: Joseph M. Gravelle, Thomas H. KOZEL
  • Compositions of hydrochlorofluoroolefins
    Patent number: 9340758
    Abstract: The present invention relates to solvent/cleaner and heat transfer fluid compositions comprising at least one hydrochlorofluoroolefin (HCFO), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer. The HCFO of the present invention can be used in combination with co-agents including, hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs), hydrocarbons, ethers including hydrofluoroethers (HFEs), esters, ketones, alcohols, 1,2-transdichloroethylene and mixtures thereof.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 17, 2016
    Assignee: Arkema Inc.
    Inventors: Benjamin Bin Chen, Philippe Bonnet, Maher Y. Elsheikh, Brett L. Van Horn, Laurent Abbas
  • WATERBORNE FLUOROPOLYMER COMPOSITION
    Publication number: 20160133988
    Abstract: This invention relates to a waterborne fluoropolymer composition useful for the fabrication of Li-ion-Battery (LIB) electrodes. The fluoropolymer composition contains an organic carbonate compound, which is more environmentally friendly than other fugitive adhesion promoters currently used in waterborne fluoropolymer binders. An especially useful organic carbonate compound is ethylene carbonate (EC) and vinylene carbonate (VC), which are solids at room temperature, and other carbonates which are liquid at room temperature such as propylene carbonate, methyl carbonate and ethyl carbonate. The composition of the invention is low cost, environmentally friendly, safer, and has enhanced performance compared to current compositions.
    Type: Application
    Filed: January 18, 2016
    Publication date: May 12, 2016
    Applicant: Arkema Inc.
    Inventors: Ramin AMIN-SANAYEI, Scott R. GABOURY
  • BLOWING AGENT COMPOSITION OF HYDROCHLOROFLUOROOLEFIN
    Publication number: 20160122495
    Abstract: A blowing agent for thermosetting foams is disclosed. The blowing agent is predominately the trans isomer of the hydrochlorofluoroolefin (HCFO) HFCO-1233zd alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: Arkema Inc.
    Inventors: Benjamin Bin CHEN, Philippe BONNET, Brett L. VAN HORN, Joseph S. COSTA
  • METHOD OF INHIBITING POLYMERIZATION AND FOULING IN ACRYLIC ACID AND ACRYLATE PROCESSES
    Publication number: 20160122643
    Abstract: The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized salt, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an N-oxyl compound, e.g., 4-hydroxy-TEMPO, and (ii) a manganese ion, the N-oxyl compound and manganese ion present in a N-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1 based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt.
    Type: Application
    Filed: July 1, 2015
    Publication date: May 5, 2016
    Applicant: Arkema Inc.
    Inventors: Olan S. FRUCHEY, Christopher T. REEVES, William C. BROOKS, Edmund J. YANG, Roger L. ROUNDY
  • BLOCK PRODUCTS INCORPORATING SMALL PARTICLE THERMOPLASTIC BINDERS AND METHODS OF MAKING SAME
    Publication number: 20160121249
    Abstract: A block product comprising a thermoplastic binder having an average particle size of less than 20 micrometers fused with active particles to form a generally coherent porous structure. In some cases, the average particle size of the binder is less than 12 micrometers. In some cases, the active particles are activated carbon particles. In some cases, the block product may include one or more of poly(vinylidene difluoride) binders, nylon-11, and nylon-12 or other odd-numbered polyamides having such small particle size.
    Type: Application
    Filed: May 8, 2014
    Publication date: May 5, 2016
    Applicant: Arkema Inc.
    Inventor: Evan E. KOSLOW
  • Caustic resistant membrane
    Patent number: 9327247
    Abstract: The invention relates to caustic resistant membranes formed by solvent casting a blend of one or more polyvinylidene fluoride polymers with one or more acrylic polymers.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: May 3, 2016
    Assignee: Arkema Inc.
    Inventor: Walter Kosar
  • Method for preparing pH-insensitive surfactant free polymer particle dispersion in aqueous medium
    Patent number: 9309329
    Abstract: The invention provides a polymer particle dispersion in an aqueous medium and a method of making the same, which comprises an emulsion polymerized polymer and a macroinitiator covalently bonded to the emulsion polymerized polymer. The living macroinitiator comprises a hydrophilic, pH-insensitive monomer in reacted form. The polymer particle dispersion may be obtained by reacting at least one monomer with the living macroinitiator and without a surfactant to effect polymerization of the monomer(s). The emulsion polymerized polymer may be comprised of at least one additional ethylenically unsaturated monomer in polymerized form.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: April 12, 2016
    Assignee: Arkema Inc.
    Inventors: Jason S. Ness, Noah E. Macy
  • High efficiency photovoltaic modules
    Patent number: 9312412
    Abstract: The invention relates to high efficiency solar collection devices having a matte surface, a low refractive index surface, or both, that increases solar radiation transmission into the device. The matte surface is on a thermoplastic and may be provided in many ways, such as by a matting agent, by the use of a matte chill roll, embossing, or other techniques. The matte and/or low refractive index surface may be a coating, film (single or multi-layer) or sheet (single or multi-layer). The invention is especially useful in both rigid and flexible photovoltaic modules.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: April 12, 2016
    Assignee: Arkema Inc.
    Inventors: Gregory S. O'Brien, Ryan R. Dirkx
  • Halogenated alkene heat transfer compositions with improved oil return
    Patent number: 9303900
    Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogenated alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 5, 2016
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Philippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker