Abstract: Molecular weight modification of polypropylene by 4-(t-amylperoxy)-4-methyl-2-pentanol and polypropylene so modified suitable for handling and packaging food, beverages and pharmaceuticals and for use in medical devices is disclosed.
Type:
Grant
Filed:
November 12, 2002
Date of Patent:
July 29, 2003
Assignee:
ATOFINA Chemicals, Inc.
Inventors:
Leo Kasehagen, Robert Kazmierczak, Robert Cordova, Terry Myers
Abstract: A solar-control glass that has acceptable visible light transmission, absorbs near infrared wavelength light (NIR) and reflects midrange infrared light (low emissivity mid IR) along with a preselected color within the visible light spectrum for reflected light is provided. Also provided is a method of producing the improved, coated, solar-controlled glass. The improved glass has a solar energy (NIR) absorbing layer comprising tin oxide having a dopant such as antimony and a low emissivity control layer (low emissivity) capable of reflecting midrange infrared light and comprising tin oxide having fluorine and/or phosphorus dopant. A separate iridescence color suppressing layer as described in the prior art is generally not needed to achieve a neutral (colorless) appearance for the coated glass, however an iridescence suppressing layer or other layers may be combined with the two layer assemblage provided by the present invention.
Type:
Grant
Filed:
October 30, 2000
Date of Patent:
July 22, 2003
Assignee:
Atofina Chemicals, Inc.
Inventors:
David A. Russo, Clem S. McKown, Christophe Roger, Jeffrey L. Stricker
Abstract: A conduit for transporting non-volatile liquids is provided in which the conduit's internal surfaces have a surface energy lower than that of the nonvolatile liquid.
Type:
Grant
Filed:
September 25, 2002
Date of Patent:
July 1, 2003
Assignee:
ATOFINA Chemicals, Inc.
Inventors:
Sivakumar Gopalnarayanan, Scott R. Gaboury
Abstract: New and novel copolymers of vinylidene fluoride and hexafluoropropylene having lower or no crystallinity together with processes for their manufacture and use are disclosed.
Abstract: Sulfur free, crosslinking, scorch-retarding compositions for compounding and cure of polymers susceptible to cure by free radical initiators are disclosed.
Type:
Grant
Filed:
December 17, 2001
Date of Patent:
April 29, 2003
Assignee:
Atofina Chemicals, Inc.
Inventors:
Leonard Henry Palys, Michael Fred Novits, Leo Kasehagen, Fabien Debaud, Luciano Abrigo
Abstract: Processes for the preparation of adherent polyvinylidene fluoride, hexafluoropropylene coatings on objects and for the direct production of open celled foams from a polymer latex without a need for any blowing agent.
Type:
Application
Filed:
April 29, 2002
Publication date:
April 24, 2003
Applicant:
ATOFINA Chemicals, Inc.
Inventors:
Ramin Amin-Sanayei, Lawrence K. Wempe, Kurt Arthur Wood, Stefano Finocchiaro, Delphine Tillier
Abstract: A gas phase process for the preparation of 245fa is provided, wherein 1233zd is contacted with HF in the presence of a supported antimony catalyst.
Abstract: A method of purifying acrolein or propionaldehyde with a single column distillation system is provided, where the distillation system has a side-draw take-off outlet for recovering purified acrolein or propionaldehyde located between the crude product feed point and the light-boiling impurities distillation site.
Type:
Grant
Filed:
June 21, 2002
Date of Patent:
February 4, 2003
Assignee:
Atofina Chemicals, Inc.
Inventors:
Steven Gabriel Schon, Samuel Marc Daniel, Richard Alan Sander
Abstract: A process is provided to prepare elastomer modified polymer compositions based on styrenic monomer(s) using certain organic peroxide initiators to increase both rubber particle size and rubber phase volume fraction (gel content).
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 forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone
Type:
Grant
Filed:
November 9, 2001
Date of Patent:
January 14, 2003
Assignee:
Atofina Chemicals, Inc.
Inventors:
William D. Honnick, Gerald H. Reifenberg, Kevin C. Cannon
Abstract: Molecular weight modification of polypropylene by 4-(t-amylperoxy)-4-methyl-2-pentanol and polypropylene so modified suitable for handling and packaging food, beverages and pharmaceuticals and for use in medical devices is disclosed.
Type:
Grant
Filed:
December 12, 2001
Date of Patent:
January 7, 2003
Assignee:
Atofina Chemicals, Inc.
Inventors:
Leo Kasehagen, Robert Kazmierczak, Robert Cordova, Terry Myers
Abstract: The present invention is a composition for and a method of shortstopping free radical emulsion polymerizations that inhibits the formation of nitrosamines. The composition comprised nitrosamine inhibitors in combination with conventional alkylhydroxylamine shortstoppers. Such nitrosamine inhibitors are based on primary amines, amine-containing polymers, pyrroles, hydroquinones, certain phenols, ascorbic acid, and other well-known nitrosation inhibitors; they may be used individually or as a blend. The compositions are targeted for applications in the emulsion processes for producing rubber latexes and the preparation of rubber products thereafter.
Type:
Grant
Filed:
August 3, 2000
Date of Patent:
December 17, 2002
Assignee:
Atofina Chemicals, Inc.
Inventors:
Jianfeng Lou, Thomas S. Buszta, Michael D. Gernon
Abstract: An improved liquid phase process is provided for the fluorination of perchloroethylene to 1,1-dichloro-2,2,2-trifluoroethane in the presence of an antimony catalyst.
Type:
Grant
Filed:
March 28, 2002
Date of Patent:
November 12, 2002
Assignee:
Atofina Chemicals, Inc.
Inventors:
Maher Y. Elsheikh, Jonathan M. Tracy, John A. Wismer
Abstract: A conduit for transporting non-volatile liquids is provided in which the conduit's internal surfaces have a surface energy lower than that of the non-volatile liquid.
Type:
Grant
Filed:
June 13, 2000
Date of Patent:
October 29, 2002
Assignee:
Atofina Chemicals, Inc.
Inventors:
Sivakumar Gopalnarayanan, Scott R. Gaboury
Abstract: Azeotropic and azeotrope-like compositions of 142/365 mfc, 142/methanol, and 142/365 mfc/methanol are provided, as are methods for using the same for cleaning, drying, foam blowing and the like.
Abstract: Thermally stabilized initiator composition 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:
October 17, 2001
Date of Patent:
June 4, 2002
Assignee:
ATOFINA Chemicals, Inc.
Inventors:
Barbara L. Stainbrook, Michael S. Mendolia, Terry N. Myers, Peter A. Callais, Joseph M. Brennan
Abstract: This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester. The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate. The improved process produces a polyester of improved color versus other titanyl oxalate catalysts and a novel polyester without the presence of antimony.
Type:
Grant
Filed:
October 24, 2001
Date of Patent:
April 30, 2002
Assignee:
Atofina Chemicals, Inc.
Inventors:
Kevin Charles Cannon, Sri Ram Seshadri, Ryan Richard Dirkx