Mixing With Fluorine- Or Iodine-containing Organic Compound Or Composition; Or Product Thereof Dnrm Patents (Class 524/462)
  • Publication number: 20030040565
    Abstract: A holder for waterproof connector comprising a holder portion made of a resin and a packing portion made of a gel-like material for keeping a waterproof connector having the terminal portion of an electric wire with a terminal inserted therein watertight at the electric wire side thereof, wherein the packing portion made of a gel-like material is obtained by hardening a silicone composition containing all of the following components (A) to (D): (A) an organopolysiloxane having at least two alkenyl groups per molecule in an amount of 100 parts by weight; (B) an organopolysiloxane having at least two hydrogen atoms having a silicon atom bonded thereto per molecule in an amount such that the amount of the hydrogen atom having a silicon atom bonded thereto in the component (B) is from not smaller than 0.
    Type: Application
    Filed: April 1, 2002
    Publication date: February 27, 2003
    Applicant: YAZAKI CORPORATION
    Inventors: Osamu Sugiyama, Masao Nagano
  • Patent number: 6525127
    Abstract: This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds provide desirable oil, water and stain repellency to fibrous substrates.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: February 25, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Chetan P. Jariwala, James D. Eggleston, Michael A. Yandrasits, Rudolf J. Dams
  • Patent number: 6518347
    Abstract: Flame retardant carbonate polymer compositions and articles prepared therefrom are described. The carbonate polymer contains a flame retardant additive comprising metal salts of a highly fluorinated methide, amide or imide anion. The composition provides flame retardancy at relatively low levels of additive, allows a broader processing window of additive compositions and can have high transparency.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: February 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Steven D. Boyd, William M. Lamanna, Thomas P. Klun
  • Patent number: 6509406
    Abstract: The invention provides X-ray contrastable plastics materials with low-molecular weight iodine compounds, a process for preparing X-ray contrastable plastics materials with low molecular weight iodine compounds, the use of low molecular weight iodine compounds to improve the X-ray contrast in transparent plastics materials and toys with improved X-ray contrast containing low molecular weight iodine compounds.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 21, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Axel Brenner, Martin Döbler, Michael Prein
  • Patent number: 6500910
    Abstract: A refractive index distribution type light transmitting device comprising a non-crystalline polymer (a) and a metal chelate compound (b) having a difference in refractive index of at least 0.001 as compared with the non-crystalline polymer (a) and having a molecular weight of at least 400, wherein the metal chelate compound (b) is distributed in the non-crystalline polymer (a) with a concentration gradient in a specific direction.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: December 31, 2002
    Assignees: Asahi Glass Company, Limited
    Inventors: Yasuhiro Koike, Norihide Sugiyama
  • Patent number: 6495624
    Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Weatherable coatings are also provided by compositions comprising a mobile non-volatile fluorinated component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: December 17, 2002
    Assignee: Cytonix Corporation
    Inventor: James F. Brown
  • Publication number: 20020177649
    Abstract: A process for producing plexifilamentary or foam products by flash spinning in selected spin agents a polymer from the group consisting of poly (1,3-propylene terephthalate), poly (1,4-butylene terephthalate), and poly(ethylene terephthalate), including their copolymers in which the spin agents have minimal or no ozone-depleting properties.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 28, 2002
    Inventors: Hyunkook Shin, Joseph Robert Guckert, Joseph V. Kurian
  • Patent number: 6482882
    Abstract: Polymerization process of unsaturated pefluoromonomers, fluoro-containing monomers and optionally in the presence of hydrogen containing olefins, for obtaining polymers contaning hydrogen and fluorine, which utilizes a microemulsion comprising the following components: (a) water; (b) a fluoropolyoxyalkylene having hydrogen-containing end groups and/or hydrogen-containing repeating units; (c) a fluorine-free organic radicalic initiator for the polymerization of fluoro-containing monomers, soluble in component (B); (d) a fluoro-containing surfactant.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: November 19, 2002
    Assignee: Ausimont S.P.A.
    Inventors: Julio A. Abusleme, Alba Chittofrati
  • Patent number: 6482880
    Abstract: Poly(biphenyl ether sulfone) resins are improved in resistance to UV yellowing when blended with up to 50 wt % polyetherimide. Flame retardant blends of poly(biphenyl ether sulfone) and polyetherimide are particularly useful in fabricating appearance parts for aircraft interiors.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: November 19, 2002
    Assignee: Solvay Advanced Polymers, LLC
    Inventor: John A. Rock
  • Patent number: 6476120
    Abstract: A refrigerant composition is disclosed which includes lubricants. The refrigerant composition includes formulations for use in automotive, residential or building air conditioning units. The refrigerant composition includes 25% to 35% by weight of a refrigerant, 60% to 70% by weight of a lubricating oil, and 0.5% to 10% by weight of polytetrafluoroethylene particles. The polytetrafluoroethylene particles range in size from 0.2 &mgr;m to 8.0 &mgr;m.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: November 5, 2002
    Inventor: Anthony Dave Bowers
  • Patent number: 6476114
    Abstract: The invention provides a method of making a film comprising the steps of: (A) providing a film comprising a layer of thermoplastic polymer having dispersed therein a fluorochemical hydrophilicity imparting compound according to the formula: Rf—Q—Z—X—T, wherein Rf represents a partially or fully fluorinated aliphatic group having at least 3 carbon atoms, Q is a linking group or a covalent bond, Z is a poly(oxyalkylene) group, X is an oxygen atom or NR wherein R is a hydrogen atom or an alkyl or aryl group, and T is a hydrogen atom or an organic group having no more than 6 carbon atoms; (B) applying a coating comprising at least one non-volatile component on said film; and (C) when said coating contains volatile components, drying said coating to remove said volatile components from said coating. Further provided are single- and multi-layer films.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: November 5, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Bart Goeman, Rolf D. Spielmann
  • Patent number: 6469072
    Abstract: A method for dispersing solid forms of additives in polymers involves adding dispersions or solutions of additive(s) to a solution of polymer in a tubular mixer (preferably in the presence of a stationary mixer). The mixer leads to a steam precipitation step wherein all fluid ingredients in the mixture are volatilized leaving the solid additive and resin in the desired ratio. This results in a uniform dispersion of the additives in the polymer matrix. As a result of the high dispersion, physical properties of a thermoplastic resin, to which the polymer matrix has been added are preserved. In one illustration, PTFE as a drip inhibitor additive, is added to polycarbonate to obtain a highly dispersed PTFE concentrate of improved-drip-inhibition without loss of mechanical properties when added to a thermoplastic molding resin.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: October 22, 2002
    Assignee: General Electric Company
    Inventors: Qamar S. Bhatia, Paul Buckley, Gary Davis, Robert L. Howe, Wie-Hin Pan, Elliott Shanklin
  • Publication number: 20020137832
    Abstract: This invention relates to thermoplastic polymer compositions comprising a clay having drip resistance in the Underwriters Laboratories Standard 94 flammability test.
    Type: Application
    Filed: December 13, 2000
    Publication date: September 26, 2002
    Inventors: Samuel A. Ogoe, Chai-jing Chou, Donna C. Scott, Hani Farah
  • Patent number: 6447913
    Abstract: To provide a thermoplastic polyester resin composition which has a very good durability to alkaline solutions for a long period of time. That is, a thermoplastic polyester resin composition, wherein a thermoplastic polyester resin (A) is compounded with 1-25% by weight (in the total composition) of impact resistance rendering materials (B), 0.1-15% by weight (in the total composition) of a silicone compound and/or a fluorine compound (C), 1-50% by weight (in the total composition) of an inorganic filler (D), and 0.1-10% by weight of at least one polyfunctional compound (E) selected from the group consisting of an epoxy compound, an isocyanate compound and a carboxylic acid dianhydride. A molded article of the present invention has anti-stress properties even in a weld part thereof.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: September 10, 2002
    Assignees: Polyplastics Co., LTD, Denso Corporation
    Inventors: Kazufumi Watanabe, Takayuki Ishikawa, Toru Katsumata, Tetsuya Hirose, Hiroyuki Wakabayashi
  • Patent number: 6433040
    Abstract: Stabilized dispersions are provided for the delivery of a bioactive agent. The dispersions preferably comprise a plurality of perforated microstructures dispersed in a suspension medium that typically comprises a liquid fluorochemical. As density variations between the suspended particles and suspension medium are minimized and attractive forces between microstructures are attenuated, the disclosed dispersions are particularly resistant to degradation, such as by settling or flocculation. In particularly preferred embodiments the stabilized dispersions may be directly administered to the lung of a patient using an endotracheal tube or bronchoscope.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: August 13, 2002
    Assignee: Inhale Therapeutic Systems, Inc.
    Inventors: Luis A. Dellamary, Thomas E. Tarara, Alexey Kabalnov, Jeffry G. Weers, Ernest G. Schutt
  • Publication number: 20020072559
    Abstract: The colored data storage media comprises a substrate comprising colorant and plastic, wherein the substrate has a transmissivity of about 85% or less, at a readback laser wavelength, when traversing a 1.2 mm thick colored substrate (disk). Alternatively, the storage media comprises: a substrate comprising a fluorescent colorant and plastic, wherein the substrate has a fluorescent color emission wavelength which is not equal to the readback laser wavelength.
    Type: Application
    Filed: January 19, 2001
    Publication date: June 13, 2002
    Inventors: Curtis Cradic, Steven R. Peak, Connie J. Bland, Steven F. Hubbard
  • Patent number: 6391807
    Abstract: The present invention provides a polymer composition comprising a fluorochemical oligomeric compound and a thermoplastic or thermoset polymer. The polymer composition is useful in preparing shaped articles such as fibers and films which have desirable oil- and water repellency properties.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: May 21, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Chetan P. Jariwala, Thomas P. Klun
  • Patent number: 6384124
    Abstract: The present invention provides a non-film-forming latex of dispersed particles which may be used in an electrophoretic display, comprising: a) a highly fluorinated liquid solvent, and b) dispersed particles comprising a polymer comprising units according to formula I: wherein each (fcp) is independently selected from highly fluorinated polymer chains and each Q is independently selected from —H and straight or branched non-fluorinated polymer chains (hcp). Latexes of dispersed particles having a very small particle size are especially provided.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: May 7, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Prabhakara Satyauolu Rao, Jimmie Rae Baran, Jr., Naiyong Jing
  • Patent number: 6380289
    Abstract: A thermoplastic composition comprises (a) a major amount of a semi-crystalline thermoplastic first polymer; (b) an amount of a fluoroaliphatic radical-containing surface-modifying additive sufficient to modify surface properties of articles made of the composition; and (c) a minor amount of a second thermoplastic polymer sufficient to enhance the effects of the surface-modifying additive.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: April 30, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Delton R. Thompson, Jr., Thomas P. Klun
  • Patent number: 6372838
    Abstract: The present invention provides a two-step method of making a latex in a highly fluorinated liquid solvent, including a first step of polymerizing together a mixture of: i) 1-2 parts by weight of one or more non-fluorinated free-radically-polymerizable monomers, and ii) 1-9 parts by weight of one or more highly fluorinated macromers terminated at one or more sites with free-radically-polymerizable groups to form a dispersion of seed particles; and a second step of polymerizing together said seed particles with an additional 10-1,000 percent by weight, relative to the total weight of the seed particles, of one or more non-fluorinated free-radically-polymerizable monomers. The present invention additionally provides a fine latex comprising a highly fluorinated liquid solvent and dispersed particles having an average particle size of 250 nm or less and more preferably 200 nm or less. The latexes of the present invention may be useful in an electrophoretic display.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 16, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Prabhakara Satyauolu Rao, Jimmie Rae Baran, Jr., Naiyong Jing
  • Publication number: 20020032256
    Abstract: A polybutadiene composition comprising a polybutadiene type polymer and a compound represented by the following formula (I): 1
    Type: Application
    Filed: July 11, 2001
    Publication date: March 14, 2002
    Inventors: Kunihito Miyake, Hironobu Iyama, Mutsuko Higo
  • Patent number: 6348633
    Abstract: Bromine containing 1,2-bis(phenyl)difluoromethane derivatives, a method for their preparation and their use in flame retardant compositions.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: February 19, 2002
    Assignee: PCBU Services, Inc.
    Inventors: Mark L. Robin, Charles J. Mazac, Leonard J. Chyall, Paul Kleindl
  • Publication number: 20010056144
    Abstract: An improved via and contact hole fill composition and method for using the composition in the dual damascene production of circuits is provided. Broadly, the fill compositions include a quantity of solid components including a polymer binder and a solvent system for the solid components. The boiling point of the solvent system is less than the cross-linking temperature of the composition. Preferred solvents for use in the solvent system include those selected from the group consisting of alcohols, ethers, glycol ethers, arnides, ketones, and mixtures thereof. Preferred polymer binders are those having an aliphatic backbone and a molecular weight of less than about 80,000, with polyesters being particularly preferred.
    Type: Application
    Filed: July 30, 2001
    Publication date: December 27, 2001
    Inventors: James E. Lamb, Xie Shao
  • Patent number: 6323296
    Abstract: A reinforced polyolefin article is provided which includes a sized reinforcement material incorporated in the article. The article may be prepared by polymerizing a cyclic olefin monomer in the presence of the sizing agent and a metathesis polymerization catalyst which includes ruthenium or osmium.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: November 27, 2001
    Inventors: Mark Warner, Steven D. Drake, Michael A. Giardello
  • Patent number: 6319970
    Abstract: A spinning process using azeotropic compounds as spin agents having essentially zero ozone depletion potential and that are either non-flammable or of very low flammability.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: November 20, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyunkook Shin, Roger Keith Siemionko, Nanlin Deng
  • Patent number: 6306943
    Abstract: This invention pertains to the art of solvent blends and solvent/resin blends. More particularly, this invention pertains to blends that reduce the atmospheric reactivity of some high volatile organic compounds. The invention is particularly applicable to solvent blends and solvent/resin blends that combine volatile organic compounds with newly discovered zero volatile organic compounds for use adhesives, coatings, inks, cleaning and blowing agents and the like and will be described with particular reference thereto. However, it will be appreciated that the invention may be advantageously employed in other environments and applications.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: October 23, 2001
    Assignee: Polymer Solvents, LLC
    Inventor: Richard G. Henry
  • Patent number: 6303675
    Abstract: A silicone rubber composition comprising 0.01 to 50 weight percent of a perfluoroalkyl group-containing polydiorganosiloxane having on a side chain (F1) an organic group selected from the group consisting of polyoxyalkylene group-containing organic groups, C12 or higher alkyl group, and polydialkylsiloxane chain-containing organic groups, and having of a side chain or at a molecular chain terminal (F2) a perfluoroalkyl group-containing organic group described by the general formula F(CF2)a—R1—, where R1 is selected from the group consisting of an alkylene group, an alkyleneoxyalkylene group, and a group in which ═CO or —COO— is present in an alkylelne chain, and a is an integer of at least 3, and having a weight average molecular weight of at least 1000.
    Type: Grant
    Filed: February 21, 2000
    Date of Patent: October 16, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hideki Kobayashi, Hiroshi Honma, Toru Masatomi
  • Patent number: 6303682
    Abstract: A process for producing plexifilamentary products by spinning from a spin fluid of a polyolefin dissolved in a primary spin agent selected from the group consisting of 1,1,2-trichloro-2,2-difluoroethane and isomers thereof; 1,1,3-trichloro-2,2,3,3-tetrafluoropropane and isomers thereof; 1,2-dichloro-3,3,3-trifluoropropane and isomers thereof; and 1,2-dichloro-1-fluoroethylene; and a co-spin agent; and also a spin fluid of a polyolefin dissolved in a primary spin agent selected from the group consisting of 1,1,2-trichloro-2,2-difluoroethane and isomers thereof, 1,1,3-trichloro-2,2,3,3-tetrafluoropropane and isomers thereof; 1,2-dichloro-3,3,3-trifluoropropane and isomers thereof; and 1,2-dichloro-l-fluoroethylene; and a co-spin agent.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: October 16, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyunkook Shin, Roger Keith Siemionko
  • Patent number: 6297339
    Abstract: A crosslinkable fluororubber composition comprising (A) a polymer comprising a perfluoro compound having at least two alkenyl groups and a divalent perfluoroalkylene or perfluoropolyether structure and a compound having at least two hydrosilyl groups, the hydrosilyl-bearing compound being added to some of the alkenyl groups in the perfluoro compound, (B) a reinforcing filler, and (C) a crosslinking agent having a hydrosilyl group and capable of addition reaction or a peroxide crosslinking agent is roll millable and compression moldable. It cures into products having satisfactory solvent resistance, chemical resistance, heat resistance, and low-temperature properties.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: October 2, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yasuhisa Osawa, Shinichi Sato, Takashi Matsuda
  • Patent number: 6297303
    Abstract: The invention pertains to a polydiorganosiloxane dispersibility improver for fluororesin powders that contains in the pendant position (A) an organic group selected from the set consisting of polyoxyalkylene-functional organic groups, alkyl groups having at least 12 carbon atoms, and polydialkylsiloxane chain-containing organic groups, and contains in the pendant position or the molecular chain terminal position, (B) a perfluoroalkyl-functional organic group with the general formula F(CF2)a—R1— in which R1 is alkylene or alkyleneoxyalkylene and a is an integer with a value of at least 3. The polydiorganosiloxane dispersibility improver for fluororesin powders has the ability to induce the uniform dispersion of fluororesin powders in organic resins. As a consequence the organic resin compositions have the ability to form uniform and transparent coatings that have an excellent surface lubricity.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: October 2, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hideki Kobayashi, Toru Masatomi
  • Patent number: 6297308
    Abstract: Described are chemical compositions comprising a fluorinated solvent and a nonionic, poly-fluoroalkyl, hydroxy-substituted surfactant.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: October 2, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Chetan P. Jariwala, Henry C. Chang, David S. Hill
  • Patent number: 6291566
    Abstract: An improved process is provided for flash-spinning plexifilamentary film-fibril strands of a fiber-forming polyolefin from a C4-7 hydrocarbon/co-solvent spin liquid that, if released to the atmosphere, presents a greatly reduced ozone depletion hazard, as compared to the halocarbon spin liquids currently-used commercially for making such strands. The resulting plexifilamentary film-fibril strands have increased tenacity and improved fibrillation compared to strands flash-spun from 100% hydrocarbon spin liquids.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: September 18, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyunkook Shin, Sam Louis Samuels
  • Publication number: 20010021742
    Abstract: Flame-retarded transparent plastic compositions comprising polyhalgenated trimethylphenyl indan. The polyhalogenated trimethylphenyl indan is a mixture of polyhalogenated trimethylphenyl indanes having each 3 to 9 halogen atoms. The halogen may be bromine or a mixture of bromine and chlorine. The transparent plastic is selected from polycarbonate, polymethylmethacrylate, and polystyrene. The polyhalogenated trimethylphenyl indan is present in an amount of up to about 40% by weight. The transparent plastic flame-retarded material is prpared by mixing the plastic matrix with a flame-retardant effective amount of a polyhalogenated trimethylphenyl indan.
    Type: Application
    Filed: November 29, 2000
    Publication date: September 13, 2001
    Inventors: Ita Finberg, Lev Utevski
  • Patent number: 6287405
    Abstract: There is disclosed a method and composition for cosmetically repairing a surface void in polyolefin objects. The method involves inserting a repair composition into the void and then applying heat thereto to fuse the repair composition with a surrounding portion of the polyolefin object. The repair composition is a physical mixture of a thermoplastic powder, a resin binder, and a solvent, having a paste-like consistency. The repair composition may be neutral in color, or may contain a colorant to closely match the underlying object. The heating step can be performed with an open flame or with a heat gun.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: September 11, 2001
    Inventors: Michael J. Stevenson, Robert A. Reeves, Matthew Stevenson
  • Patent number: 6288157
    Abstract: This invention provides fluorochemical compounds comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds are useful as topical treatments for fibrous substrates such as textiles and fabrics, and as polymer melt additives to provide desirable oil-, water and stain repellency to shaped articles such as fibers.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: September 11, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Chetan P. Jariwala, Thomas P. Klun, Rudolf J. Dams, Marvin E. Jones
  • Patent number: 6284843
    Abstract: The present invention provides a novel fluorochemical oligomer, and polymer composition comprising the fluorochemical oligomeric compound and a thermoplastic or thermoset polymer. The polymer composition is useful in preparing shaped articles such as fibers and films which have desirable oil- and water repellency properties.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: September 4, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Chetan P. Jariwala, Thomas P. Klun
  • Patent number: 6271312
    Abstract: A graded-refractive-index optical plastic material composed of an amorphous fluoropolymer and at least one material which differs from the polymer in refractive index by at least 0.001, wherein the material is so distributed as to have a concentration gradient in a specific direction, and a method for its production.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: August 7, 2001
    Assignee: Yasuhiro Koike
    Inventors: Yasuhiro Koike, Masaki Naritomi
  • Patent number: 6268321
    Abstract: A grease made by combining polychlorotrifluoroethylene oil with a thickening agent comprising polychlorotrifluoroethylene (PCTFE) polymer. The thickening agent is made by polymerizing chlorotrifluoroethylene [R-1113] in the presence of a telogen, which is 2,2-dichloro-1,1,1-trifluoroethane[R-123] or a homolog thereof, namely CF3—CF2—CHCl2, CF3—CF2—CF2—CHCl2, and CF3—CF2—CF2—CF2—CHCl2.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: July 31, 2001
    Assignee: Halocarbon Products Corporation
    Inventor: Lee G. Sprague
  • Patent number: 6261695
    Abstract: A coating composition comprising a fluorine-containing compound of the following formula 1, a polyisocyanate, water and an organic solvent: Rf—Q—A  1 wherein R is a monovalent fluorine-containing organic group having from 2 to 20 carbon atoms, Q is a single bond or a bivalent linking group, and A is a group having a hydrogen atom reactive with an isocyanate group.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: July 17, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventor: Kazusuke Kirimoto
  • Patent number: 6261676
    Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a fluoropolymer and an amide functional ultraviolet light absorbing compound, wherein the polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polymeric matrix and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: July 17, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: David B. Olson, David M. Burns, Bruce B. Wilson
  • Patent number: 6262180
    Abstract: This invention describes hydrophobic and oleophobic fibers, films and molded articles comprising synthetic organic polymer wherein dispersed within the fiber, fabric or molded article and present at the surface of the fiber, fabric or molded article are fluorochemical compounds. Method of preparing such fibers, films and molded articles, as well as articles made therefrom also are disclosed.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: July 17, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas P. Klun, Alton J. Gasper, John A. Temperante
  • Patent number: 6251975
    Abstract: This invention pertains to a dispersibility improver for fluororesin powders that has the ability to induce the uniform dispersion of fluororesin powders in organic resins; a modifier for application to organic resins wherein said modifier comprises fluororesin powder and the aforesaid dispersibility improver; and finally organic resin compositions that contain the aforesaid modifier and as a consequence have the ability to form uniform and transparent coatings having an excellent surface smoothness.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hideki Kobayashi, Toru Masatomi
  • Patent number: 6248823
    Abstract: Disclosed is a liquid/gelatinous composition of matter comprising: (a) a solvent or a mixture of solvents selected from the group consisting of: (i) a CnF2n+2−xHx compound, wherein n is an integer from 6 to 15 and x is an integer from 1 to 3; and (ii) a Cn′F2n′−x′Hx′ compound, wherein n′ is an integer from 7 to 15 and x′ is an integer from 1 to 3; and (b) one or more amorphous fluoropolymers selected from the group consisting of: (i) poly(HFP/TFE); (ii) iodine ended poly(TFE/PMVE); (iii) poly(TFE/PMVE/PEVE); (iv) poly(TFE/PDD); (v) poly(TFE/perfluorovinylether); (vi) poly(CF2═CF(CF2)2OCF═CF2/TFE); and wherein the amorphous fluoropolymer has no detectable Tm (<1 J/g) by differential scanning calorimetry and wherein the amorphous fluoropolymer makes up 0.05 to 30 wt % of the composition and wherein at least 5% of the amorphous fluoropolymer present is in solution in the solvent or mixture of solvents.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: June 19, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jeffrey A. Hrivnak, Walter Mahler, William George O'Brien, Viacheslav Alexandrovich Petrov, Robert Clayton Wheland
  • Patent number: 6225382
    Abstract: A fluorine-containing resin composition comprising at least one fluorine-containing polycyclic compound (A) selected from the group consisting of the following compounds (A1), (A2) and (A3), and a polymer (B) having a fluorine-containing alicyclic structure: (A1) a fluorine-containing non-condensed polycyclic compound having at least two fluorine-containing rings bonded by a bond containing at least one member selected from the group consisting of a triazine ring, an oxygen atom, a sulfur atom, a phosphorus atom and a metal atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A2) a fluorine-containing non-condensed polycyclic compound having at least three fluorine-containing rings bonded directly or by a bond containing a carbon atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A3) a fluorine-containing condensed polycyclic compound which is a condensed polycyclic compound composed of at least three carbon rings or heterocyclic r
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: May 1, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Ikuo Matsukura, Shunsuke Yokotsuka, Katsumi Suzuki
  • Publication number: 20010000515
    Abstract: A process for forming a planarization film on a substrate that does not smoke or fume on heating includes applying a polymeric solution including a novolac resin having a weight average molecular weight between about 1000 and 3000 amu, which has been fractionated to remove molecules with molecular weight below about 350 amu, a surfactant selected from a group consisting of a non-fluorinated hydrocarbon, a fluorinated hydrocarbon and combinations thereof, and an optional organic solvent to a substrate, followed by heating the substrate.
    Type: Application
    Filed: December 12, 2000
    Publication date: April 26, 2001
    Inventors: Nigel Hacker, Todd Krajewski, Richard Spear
  • Patent number: 6218460
    Abstract: A flash-spun material comprised of at least 90% by weight of polymers selected from the groups A, B, and C; wherein group A comprises polymers with a melting point above 280° C. that are comprised of halocarbon polymers in which at least 20% of the total number of halogen atoms in each halocarbon polymer are fluorine atoms; wherein group B comprises polymers with a melting point above 280° C. that are comprised of oxyhalocarbon polymers in which at least 20% of the total number of halogen atoms in each oxyhalocarbon polymer are fluorine atoms; and wherein group C comprises fully halogenated, highly fluorinated ion exchange polymers. A process for producing such flash-spun material and a solvent for producing such flash-spun material are also provided.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: April 17, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hyunkook Shin, William H. Tuminello
  • Patent number: 6203912
    Abstract: An electronic article having a thin film of a triazine ring-containing fluoropolymer obtained by trimerization of a cyano group of a cyano group-containing fluoropolymer having a polymerization unit of the formula (1): —[CF2—CF(A1)]—  (1) wherein A1 is —OR1CN, —CN or —R1CN, and R1 is a C1-C15 polyfluoroalkylene group which may have an ether bond.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: March 20, 2001
    Assignee: Asahi Glass Company. Ltd.
    Inventors: Atsushi Watakabe, Jun-ichi Tayanagi, Masayuki Tamura, Haruhisa Miyake
  • Patent number: 6197426
    Abstract: A method is disclosed of treating a substrate, comprising applying to the substrate a fluorochemical composition comprising fluorochemical copolymer derived from at least one fluorochemical monomer A, at least one monomer B, at least one monomer C and at least one monomer D, wherein the fluorochemical monomer A contains a fluoroaliphatic group and is an ester of an &agr;,&bgr;-ethylenically unsaturated carboxylic acid, the monomer B is an ester of an &agr;,&bgr;-ethylenically unsaturated carboxylic acid, the monomer C is an ethylenically unsaturated dicarboxylic acid anhydride, the monomer D is an ester of an &agr;,&bgr;-ethylenically unsaturated carboxylic acid, the fluorochemical monomer A and the monomers B and C contain only one polymerizable group and monomer D contains, as a second polymerizable group, an ethylenically unsaturated group that has a higher affinity to copolymerize with the monomer C than fluorochemical monomer A or monomers B or D.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: March 6, 2001
    Assignee: 3M Innovative Properties Company
    Inventor: Dirk M. Coppens
  • Patent number: 6197866
    Abstract: Painting composition based on fluoropolymers in an aqueous dispersion, comprising a partially fluorinated non ionic polymeric compound as an additive for the control of the viscosity and in general of the rheological characteristics of the composition itself.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: March 6, 2001
    Assignee: Ausimont S.p.A.
    Inventors: Daria Lenti, Tiziana Poggio
  • Patent number: 6193791
    Abstract: A polish composition comprising a base component and a alkylated fluorochemical oligomer. The oligomer comprises a fluorochemical oligomeric portion, an aliphatic moiety, and a linking group which links the two. The base component of the polish composition may be a wax, a silicone oil, or a mixture of the two.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: February 27, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Steven J. Vander Louw, Chetan P. Jariwala