Patents Assigned to Atochem North America, Inc.
  • Patent number: 6303224
    Abstract: This invention is directed to a tie layer for improving the adhesion of a layer of a fluoride-based polymeric material to a layer of a polyphenylene ether- or polystyrene-based material. The tie layer comprises a copolymer of a styrenic material like high impact polystyrene, and an acrylic material such as poly(methyl methacrylate) (PMMA). The tie layer composition may further include at least one flexibilizing agent which is compatible with one of the materials in the other layers. Exemplary flexibilizing agents are blends or copolymers which comprise rubber and polystyrene, or core-shell impact modifiers, or combinations of these types of materials. The layers can be coextruded or laminated, using conventional techniques.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: October 16, 2001
    Assignees: General Electric Co., Elf Atochem North America, Inc., Elf Autochem S.A.
    Inventors: John R. Krahn, Herbert Shin-I Chao
  • Patent number: 6166235
    Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand-solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino form.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 26, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: William D. Honnick, Gerald H. Reifenberg, deceased, Kevin C. Cannon
  • Patent number: 6159346
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as dialkylhydroxylamine and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: December 12, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 6136877
    Abstract: Nonflammable foam blowing agent blends of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: October 24, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Jinhuang Wu
  • Patent number: 6124380
    Abstract: The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: September 26, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Emily C. Bossert, Kevin Cannon, William D. Honnick, Wayne Ranbom
  • Patent number: 6124510
    Abstract: Preparation of cis/trans 1234ze monomer is provided, by dehydrofluorination of 245fa using an alkaline solution or using a gas phase catalyzed process.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: September 26, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Maher Y. Elsheikh, Paul D. Fellenger
  • Patent number: 6120908
    Abstract: A method is described for strengthening or restoring strength to a flat brittle oxide substrate which includes the steps of coating the edges of the brittle oxide substrate with a strengthening composition without coating a significate portion of the flat surfaces. The strengthen brittle oxide substrate such as glass and a window containing as the window pane the edge strengthen glass are also provided.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: September 19, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Victor D. Papanu, Stephen W. Carson, Scott J. Schwartz
  • Patent number: 6117914
    Abstract: Nonflammable foam blowing agent blends of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.
    Type: Grant
    Filed: August 11, 1999
    Date of Patent: September 12, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Jinhuang Wu
  • Patent number: 6117917
    Abstract: B-side compositions comprising a polyol and a gaseous blowing agent comprising 124 dissolved in the polyol are provided, as are processes for producing closed-cell polyurethane or polyisocyanurate polymer foam comprising contacting an isocyanate-containing component with a polyol component in the presence of a blowing agent comprising 124, said blowing agent being dissolved in said polyol component.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: September 12, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Arnaud Albouy
  • Patent number: 6099624
    Abstract: Nickel phosphorus alloys can be electroplated from an aqueous acidic solution containing nickel alkane sulfonate and phosphorus acid.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 8, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Nicholas M. Martyak
  • Patent number: 6083627
    Abstract: Pigmented and unpigmented polymeric resin blends containing up to 45 weight percent polyvinylidene fluoride based polymer and either polyamide 11 or polyamide 12 having particular usefulness in powder coating of objects are disclosed.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: July 4, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Brian D. Keeny, Joseph L. Mitchell, David T. Wiggins
  • Patent number: 6083874
    Abstract: This invention relates to an improved composition of matter for and method of desiccating plants such as, for example, cotton. More particularly, this invention relates to an improved desiccating composition comprising a solution of endothall, an ammonium salt, a glutamine synthetase inhibitor, and optionally, a surface active agent, and a method of using the composition.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: July 4, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Nasir S. A. Malik
  • Patent number: 6074985
    Abstract: A supported Lewis acid catalyst such as antimony V on a fluorine-treated moisture-free activated carbon support is provided, as are fluorination processes using such a catalyst.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: June 13, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Maher Y. Elsheikh, Bin Chen
  • Patent number: 6066760
    Abstract: A process is disclosed for the efficient production of high purity alkane sulfonic acid and/or alkane sulfonyl chloride product wherein a compound of the formula RSX, where X is hydrogen or --SR.sup.1 and R and R.sup.1 are alkyl radicals is continuously reacted with chlorine in aqueous hydrochloric acid to produce a turbulent evolution of hydrochloride gas, passing the reactants through stationary mixing elements to promote plug-flow, and separately withdrawing a product. Apparatus for this process is also disclosed.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: May 23, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventor: Steven Gabriel Schon
  • Patent number: 6063969
    Abstract: A process for the preparation of 142 is provided, wherein 1130 is fluorinated in the gas phase in the presence of a catalyst which is a supported or unsupported fluorinated salt of one or more of chromium, iron, niobium, nickel, antimony, tin, tantalum or titanium. 142 is a known foam blowing agent.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: May 16, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Michael S. Bolmer, Bin Chen
  • Patent number: 6059933
    Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: May 9, 2000
    Assignee: ELF Atochem North America, Inc.
    Inventors: Richard M. Crooker, Maher Y. Elsheikh, Anthony D. Kelton, Morris P. Walker, Danny W. Wright
  • Patent number: 6042893
    Abstract: The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: March 28, 2000
    Assignee: Elf Atochem North America Inc.
    Inventors: Emily C. Bossert, Kevin Cannon, William D. Honnick, Wayne Ranbom
  • Patent number: 6028128
    Abstract: The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: February 22, 2000
    Assignee: ELF Atochem North America, Inc.
    Inventors: Emily C. Bossert, Kevin Cannon, William D. Honnick, Wayne Ranbom
  • Patent number: 6013846
    Abstract: An azeotrope containing HF and 1233zd is provided, as are methods for separating this azeotrope from mixtures of HF and 1233zd which are HF-rich or 1233zd-rich and methods for making use of the azeotrope and separation methods to improve processes for preparing 1233zd, an intermediate used in the preparation of 245fa. 245fa is a known foam blowing agent and refrigerant.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: January 11, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: John A. Wismer, Michael S. Bolmer, Bin Chen
  • Patent number: 6013333
    Abstract: A method is described for strengthening or restoring strength to a brittle oxide substrate which includes the steps of coating the brittle oxide substrate with an aqueous solution containing a silane-based composition, and curing the coating to form a transparent layer on the brittle oxide substrate. Also disclosed are novel compositions used to coat brittle oxide substrates, and silane-coated brittle oxide containers.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 11, 2000
    Assignee: Elf Atochem North America, Inc.
    Inventors: Stephen W. Carson, Ryan R. Dirkx, Victor D. Papanu, Neil D. Conrad