Patents Assigned to ATOFINA Chemicals, Inc.
  • Publication number: 20050048201
    Abstract: A coating apparatus includes a container and a perforated plate separating a plenum from a coating chamber. A gas supply system delivers a gas to the plenum in a sufficient amount for passage of the gas through the plate and suspension of a powder in a fluidized condition in the chamber. The gas supply system preferably includes a primary portion for continuously delivered gas and a controllable pulsing portion for supplementing the gas from the primary portion. In a first mode of operation, the gas from the pulsing portion is cycled to provide variation in the fluidized volume. In a second mode, the pulsing portion delivers relatively long pulses of gas to mix the fluidized powder.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 3, 2005
    Applicant: ATOFINA Chemicals, Inc.
    Inventor: Joseph Mitchell
  • Patent number: 6846888
    Abstract: Thermally stabilized initiator compositions comprising: (a) at least one dialkyl peroxydicarbonate, and (b) a stabilizing effective amount of a compound of Structure I: wherein R1 and R2 are as defined in the summary of the invention section, processes for their preparation and use are disclosed.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: January 25, 2005
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Barbara L. Stainbrook, Michael S. Mendolia, Terry N. Myers, Peter A. Callais, Joseph M. Brennan
  • Publication number: 20040225053
    Abstract: Fluoropolymers are prepared by a process comprising polymerizing at least one fluoromonomer in an aqueous reaction medium containing monomer, a radical initiator and a 3-allyloxy-2-hydroxy-1-propanesulfonic acid salt as surfactant. The medium may optionally contain one or more of an antifoulant, a buffering agent and a chain-transfer agent.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 11, 2004
    Applicant: ATOFINA Chemicals, Inc.
    Inventors: Roice Andrus Wille, Lotfi Hedhli, Mehdi Durali, Sayed Youssef Antoun
  • Patent number: 6803353
    Abstract: A family of slurries useful in modifying exposed surfaces of wafers for semiconductor fabrication are provided along with methods of modifying exposed surfaces of wafers for semiconductor fabrication utilizing such a family of working slurries, and semiconductor wafers.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: October 12, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Nicholas Martyak, Glenn Carroll
  • Patent number: 6793845
    Abstract: A method for improving the processability of foam premixes containing HFC and/or pentane-based blowing agents in polyols is provided, which method comprises adding trans-1,2-dichloroethylene to said premix in an amount effective to enhance said processability.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: September 21, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Jinhuang Wu, Laurent S. J. Caron
  • Patent number: 6780935
    Abstract: A polymer blend is described which contains at least one acrylic resin or vinyl resin having at least one ionic or ionizable group and at least one thermoplastic fluoropolymer. Preferably, the polymer blend is an intimate blend of the two polymers which are useful in a variety of applications including in the formation of a membrane which is useful in batteries and fuel cells and the like. Methods of making the polymer blends are also described.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: August 24, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Lotfi Hedhli, Laurent Billon
  • Patent number: 6767978
    Abstract: Copolymers of at least three monomer units selected from the group consisting of fluorinated acrylic (methacrylic) monomers, triorganosilylacrylic (e.g. trimethylsilyl methacrylate) monomers and acrylic monomers not containing an organosilyl moiety, (e.g. methyl methacrylate) and optionally containing from 0-5 weight percent of a cross-linking agent are novel compositions useful as polymeric binders in long life marine antifoulant coatings.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: July 27, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Mark Anthony Aubart, Elisabeth Patricia Guittard, Gary Stephen Silverman, Kenneth Kuo-shu Tseng
  • Patent number: 6765058
    Abstract: A crosslinkable composition of a polymeric thermoplastic and/or elastomeric material which is susceptible to scorching when processed at elevated temperatures, prior to crosslinking, in the presence of a free radical initiator, is protected against such scorching by the incorporation therein of a mixture of at least one hydroquinone compound and a sulfur accelerator. This mixture may also contain at least one monomeric allylic, methacrylic, acrylic or diene type coagent. The mixture exhibits a synergistic effect resulting in improved scorch protection for peroxide cured systems when compared with the protection afforded by the components singly.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 20, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Michael Fred Novits, Chester Joseph Kmiec, Edward Phillip Hibbard
  • Patent number: 6764977
    Abstract: Safety stabilized solid, free-flowing compositions based on t-butyl peroxy maleic acid as well as processes for their preparation and use are disclosed.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: July 20, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventor: Terry Ned Myers
  • Patent number: 6761833
    Abstract: Vinyl monomers are stabilized by a composition which includes an alkyl hydroxyl amine and a sulfide compound or at least two alkyl hydroxyl amines and a phenolic compound.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: July 13, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Jianfeng Lou, Martin Nosowitz
  • Patent number: 6762263
    Abstract: Processes for the controlled radical polymerization of acrylic and related polymers to produce improved low VOC coating materials, or powder coating compositions, the novel polymers so produced, the catalyst systems employed, processes for application of the improved coatings, coatings so produced and objects coated on at least one surface with the novel coatings are disclosed.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: July 13, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Peter A. Callais, Puvin Pichai, Michael G. Moskal, Olivier Guerret
  • Publication number: 20040132631
    Abstract: Foam blowing agent blends containing trans-1,2-dichloroethylene and one or more hydrofluorocarbons are provided, as are foam compositions containing such blends. The resulting foams exhibit dramatic improvement in fire performance.
    Type: Application
    Filed: January 2, 2003
    Publication date: July 8, 2004
    Applicant: ATOFINA Chemicals, Inc.
    Inventors: Steve M. Galaton, Christopher Bertelo
  • Patent number: 6747099
    Abstract: Compositions are disclosed which comprise mixtures of at least one compound selected from silicone elastomers, bis-, tri- or higher polymaleimides and/or bis-, tri- or higher polycitraconimides, and at least one compound selected from p-phenylene-diamine based antiozonants, sulfur compounds capable of accelerating sulfur vulcanization of polymers capable of being crosslinked by sulfur and polysulfide polymers which when compounded into polymers curable by free radical initiators in the presence of free radical initiators permit substantially tack free surface cure of the polymers by decomposition of the free radical initiator in the presence of molecular oxygen. Compositions containing the above ingredients and at least one free radical initiator, curable compositions containing the combination and processes for making and using the compositions are also disclosed.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: June 8, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Michael F. Novits, Leonard H. Palys, Gary J. Gullo
  • Patent number: 6746719
    Abstract: An improved process for priming a metal surface to improve the adhesion to the surface of a resin coating possessing functional groups that react with epoxide groups, such as amide functionality containing polyamide resins.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: June 8, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventor: Thomas Page McAndrew
  • Patent number: 6743876
    Abstract: New and novel copolymers of vinylidene fluoride and hexafluoropropylene containing up to 24% by weight hexafluoropropylene having lower DSC melting temperatures at 8 weight percent or greater nominal HFP content, and having improved solution clarity and fluidity, longer gel times and lower extractables than prior art vinylidene fluoride-hexafluoropropylene copolymers of comparable HFP content whose syntheses are disclosed in sufficient detail to duplicate, to novel compositions of matter and articles of manufacture containing such copolymers, processes for the preparation and use of the copolymers, of the compositions of matter containing such copolymers and of the articles of manufacture containing such copolymers are disclosed. Improved electrochemical cells based on the new and novel copolymers are particularly disclosed.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: June 1, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Roice Andrus Wille, Michael T. Burchill
  • Patent number: 6743865
    Abstract: Multi-phase blends of VDF-based polymers are provided which are useful in a variety of applications such as wire and cable, pipe and liner applications, and rotational molding.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: June 1, 2004
    Assignee: ATOFINA Chemicals, Inc.
    Inventors: Nafih Mekhilef, Saeid Zerafati
  • Patent number: 6734264
    Abstract: Vinylidene fluoride polymers are produced by using a C3-C5 hydrocarbon as a chain transfer agent in the free radical polymerization process.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 11, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventor: Ramin Amin-Sanayei
  • Patent number: 6723255
    Abstract: Disclosed are compositions for shortstopping free radical emulsion polymerizations and stabilizing polymers produced from the corresponding emulsion processes. Such compositions include at least one hydrophillic radical scavenger (i.e, shortstopper) and at least one hydrophobic radical scavenger. The compositions are preferably targeted for applications in the emulsion processes of rubber latexes. These compositions exhibit excellent performance not only as shortstoppers of free radical emulsion polymerizations but also as stabilizers of the corresponding polymers. Thus, the compositions prevent additional polymerization in the particles without requiring additional stabilizer even after such polymers are steam stripped. They do so without the use of chemicals which carry a high safety, health, or environmental risk.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: April 20, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Thomas S. Buszta, Jianfeng Lou, Martin Nosowitz
  • Publication number: 20040059012
    Abstract: Preparation of water-blown polyurethane foam using a gaseous co-blowing agent is provided wherein the A-side and B-side are mixed at low pressures.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 25, 2004
    Applicant: ATOFINA Chemicals, Inc.
    Inventors: Ian A. Wheeler, Dean Wickwire
  • Patent number: 6710123
    Abstract: A fluoropolymer is described which is a polymer reaction product of a fluoropolymer comprising a polymer reaction product of a) at least one first alkylene co-monomer containing at least one fluorine atom; b) optionally at least one monomer selected from 1) at least one second alkylene containing at least one fluorine atom; 2) at least one alkyl alkenyl ether containing at least one fluorine atom; 3) at least one aliphatic or cyclic ketone containing at least one fluorinated alpha-alpha position; or 4) non-fluorinated alkene, alkyl alkenyl ether, or alkenyl ester; and c) at least one sterically hindered alkenyl or alkenyl ether organo silane co-monomer with or without at least one fluorine substituent. The fluoropolymer can be subsequently cross-linked or further reacted. Methods of making the fluoropolymer are further disclosed as well as applications of the fluoropolymers.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: March 23, 2004
    Assignee: Atofina Chemicals, Inc.
    Inventors: Ramin Amin-Sanayei, Claude Christophe Granel