Patents Examined by P. C. Sluby
  • Patent number: 5391429
    Abstract: A polyester resin film which is biaxially oriented and again oriented in a machine direction and a coating layer formed on at least one surface of the film, in which the coating layer contains at least 50% by weight of a water-soluble or water-dispersible polyester resin having a glass transition temperature of at least 20.degree. C., which film has a good adhesion property.
    Type: Grant
    Filed: January 4, 1993
    Date of Patent: February 21, 1995
    Assignee: Diafoil Hoechst Company, Limited
    Inventors: Yuzo Otani, Toshifumi Takisawa, Shin-ichi Kinoshita, Masato Fujita
  • Patent number: 5391423
    Abstract: Biodegradable, liquid impervious multilayer film compositions are disclosed. In particular, the films comprise composite structures derived from multilayer combinations of biodegradable polymers. The biodegradable polymers are selected from the categories of moisture sensitive polymers, thermally sensitive polymers, mechanically limited polymers, polymers not easily processed into films, hydrolytically cleavable polymers, and degradable elastomers. Optionally, the multilayer films may further comprise additional adhesive tie layers. The biodegradable polymers are combined in various ways to overcome the deficiencies of the individual components, yet at the same time impart specific performance properties to the film. The multilayer film compositions are suitable for use as backsheets in disposable absorbent products including diapers, adult incontinent pads, sanitary napkins, pantiliners, and the like.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: February 21, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Andrew J. Wnuk, Thurman J. Koger, II, Terrill A. Young
  • Patent number: 5389435
    Abstract: The present invention is a flame retardant composite material comprising a laminate of (A) a glass scrim coated with an inorganic filler and an epoxy resin and (B) a structural composite of graphite fibers and an epoxy resin.
    Type: Grant
    Filed: May 20, 1993
    Date of Patent: February 14, 1995
    Assignee: ICI Composites Inc.
    Inventor: Hugh A. Yap
  • Patent number: 5389437
    Abstract: A pressure sensitive adhesive sheet or label comprising an adhesive coated substrate of paper or synthetic resin film, the adhesive coating containing an acrylic copolymer prepared by copolymerization of 0.1 to 20 weight % of (A) at least one unsaturated monomer of the formula: ##STR1## wherein R is hydrogen or methyl group, R.sup.1 and R.sup.2 are hydrogen or a C.sub.1 -C.sub.4 alkyl, n is 1 to 4; 0.01 to 10 weight % or (B) at least one unsaturated monomer of the formula: ##STR2## wherein Y is an organic group having a radical polymerizable unsaturated bond and R.sup.3, R.sup.4 and R.sup.5 are an aryl, or an unsubstituted or substituted alkyl; 0 to 10 weight % of (C) at least one unsaturated monomer of the formula: ##STR3## wherein R.sup.6 R.sup.7, R.sup.8, R.sup.9 and R.sup.10 are hydrogen or --CH.sub.2 OH; 60 to 99.89 weight % of (D) at least one unsaturated monomer of the formula: ##STR4## wherein R.sup.11 is hydrogen or methyl group and R.sup.12 is a C.sub.1 -C.sub.14 alkyl.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: February 14, 1995
    Assignees: Saiden Chemical Industry Co., Ltd., Lintec Corporation
    Inventors: Norihisa Miyajima, Issei Ozaki, Hajime Fukada
  • Patent number: 5387470
    Abstract: A multi-layer film useful in food packaging comprising a first core layer comprising VLDPE or LLDPE; optionally a second core layer comprising VLDPE or LLDPE; two outer layers each comprising an ionomer; and further core layers between the first core layer and the outer layer and between the second core layer and the outer layer the further core layers comprising an olefin polymer or copolymer. The film may also include an oxygen barrier layer and may be oriented to provide a heat shrinkable film.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: February 7, 1995
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Colin D. Parnell, Tito A. Fornasiero
  • Patent number: 5385781
    Abstract: This invention relates to a multilayer thermoformable structure comprising (A) at least one cap layer and (B) at least one core layer, and polymer compositions for making the same. The multilayer structures and polymer compositions of the invention are useful in preparing thermoformed articles and are particularly useful in preparing liners for refrigerators and freezers. The multilayer structures and the polymer composition have good thermoformability and chemical resistance. The multilayer structures and the polymer composition have good surface properties including a glossy finish. Further these materials are compatible with new blowing agents, such as the hydrochlorofluorocarbons and hydrofluorocarbon blowing agents, which are more environmentally friendly. The layers of the multilayer structure do not require a glue layer.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: January 31, 1995
    Assignee: Ferro Corporation
    Inventors: Deenadayalu Chundury, Anthony S. Scheibelhoffer, Berdine L. Leonard, Ronald E. Thompson, Randall S. McAllister, Surachai Wimolkiatisak, Anthony F. Dean, Jr.
  • Patent number: 5382473
    Abstract: A polymeric film substrate having on at least one surface a prime coating of the type which causes destructive film blocking between contacting layers. This prime coating is top coated with pigmented or non-pigment polyester ink base so as to eliminate the blocking. This top coating is a excellent base for printing inks.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 17, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Gordon L. Musclow, Robert V. Poirier, Ralph J. Weber
  • Patent number: 5380587
    Abstract: A printable film structure comprising a polymeric film substrate having on at least one surface thereof a prime coating of the type which causes destructive film blocking between contacting layers of such coated films, said prime coating having thereon a continuous copolyester coating consisting essentially of the polyester condensation product of the following monomers or their polyester forming equivalence:(a) about 60 to 75 mole % of terephthalic acid;(b) about 15 to 25 mole % of at least one aliphatic dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1 to 11;(c) greater than from about 6 up to about 15 mole % of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus; and(d) stoichiometric quantities of about 100 mole % of at least one copolymerizable aliphatic or cycloalphatic alkylene glycol having from about 2 to 11 carbon atoms.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 10, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Gordon L. Musclow, Robert V. Poirier, Ralph J. Weber
  • Patent number: 5378544
    Abstract: A composite wood product made from discrete wood particles secured together by a cured bisphenol A formaldehyde resin cured from an A-stage bisphenol A formaldehyde resin having an A-stage bisphenol A to formaldehyde mole ratio of 1 to between 2.5 and 4 and between 3 and 11% of caustic measured as sodium hydroxide based on the weight of resin solids. Preferably the resin will include 2 to 10% urea based on the resin solids. The cured bisphenol A formaldehyde resin secures the wood particles together to form a composite wood product having light colored glue lines that substantially corresponds in color with the wood so that the glue lines tend to be unnoticeable.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: January 3, 1995
    Assignee: Trus Joist MacMillan, a Limited Partnership
    Inventors: Marek J. Gnatowski, Robert L. Pike, Douglas E. Rogerson
  • Patent number: 5374459
    Abstract: A thermoplastic laminate suitable for long-term storage of food products includes a first substrate having a core layer of ethylene vinyl alcohol copolymer, two interior adhesive layers, and two surface layers each comprising a blend of a linear ethylene alpha olefin copolymer and an ethylene unsaturated ester copolymer; and a second substrate comprising an olefinic material of monolayer or multilayer construction, and preferably of substantiallly the same composition as the first substrate; and the second substrate bonded to the first substrate preferably by means of a conventional lamination adhesive.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: December 20, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Edward L. Mumpower, Gordon V. Sharps, Jr., Neal E. McCormick, Barry J. Grant
  • Patent number: 5368916
    Abstract: A laminated damping material comprises a layer of a thermosetting resin having vibration-damping properties as a core layer and two heat resistant films adhesive to the core layer, the core layer being sandwiched between these two heat resistant films. The damping material can be used for preparing a fiber-reinforced composite material which comprises at least one basic layer structure, outer layer/intermediate layer/core layer/intermediate layer/outer layer, the intermediate layer being formed from a heat resistant film having good adhesive properties to both outer and core layers and the core layer being formed from a thermosetting resin. The fiber-reinforced composite material exhibits high vibration-damping properties and accordingly can suitably be used, as a structural material, for the production of not only cars and equipments for leisure time amusement but also space structures such as artificial satellites and air planes.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: November 29, 1994
    Assignee: NEC Corporation
    Inventors: Jun Fujimoto, Tetsuya Tamura, Toshikazu Furihata, Youhei Suzuki, Kakutaro Kauchi
  • Patent number: 5364669
    Abstract: A composite film comprising, at least, a liquid crystal polymer layer containing a thermotropic liquid crystal polymer, and a thermoplastic polymer layer laminated on at least one surface of the liquid crystal polymer layer. The thermoplastic polymer layer may be formed with an adhesive thermoplastic polymer layer having adhesive properties with respect to the liquid crystal polymer layer. The adhesive thermoplastic polymer layer is formed preferably by a modified polyolefin into which a functional group is being introduced, or a modified polyester, A thermoplastic polymer layer such as a polyalkylene terephthalate layer or olefin polymer layer may further be laminated on the adhesive thermoplastic polymer layer.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: November 15, 1994
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Katsuhiko Sumida, Yuji Iseki, Masahiko Suzuki
  • Patent number: 5362572
    Abstract: Disclosed is a two-layer thermoplastic elastomer sheet comprising a skin layer [I] and a reverse surface layer [II], each layer being composed of a thermoplastic elastomer containing a polyolefin resin (A) and an .alpha.-olefin copolymer rubber (B), wherein a difference [(I.sub.B)-(II.sub.B)] between the amount (I.sub.B) of the .alpha.-olefin copolymer rubber (B) contained in the thermoplastic elastomer of the skin layer (I) and the amount (II.sub.B) of the .alpha.-olefin copolymer rubber (B) contained in the thermoplastic elastomer of the reverse surface layer (II) is in the range of 5 to 85 parts by weight. The two-layer thermoplastic elastomer sheet of the invention is excellent in vacuum forming properties and can provide molded products excellent in the soft touch and having appearance of softness, appearance of flexibility and appearance of warmth. The sheet of the invention can be widely used for interior automotive trim such as an instrument panel.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 8, 1994
    Assignee: Mitsui Petrochemical Industries, ltd.
    Inventors: Shunichi Hamada, Katsuyoshi Yonekura
  • Patent number: 5360658
    Abstract: The present invention relates to antistatic extruded polycarbonate sheets produced from thermoplastic polycarbonates, polyalkylene terephthalates and carbon black, as well as processes for the production of such sheets.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: November 1, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Schmitz, Hans-Leo Weber, Hans-Josef Fausten, Hans-Wolfgang Schmoranzer, Udo Hansel
  • Patent number: 5360657
    Abstract: A process is provided for producing a coated printing paper by first applying a pigment containing layer, superposing thereon a surface layer of a thermoplastic latex having a second-order transition of at least 80.degree. C. and an average particle size of smaller than 100 nm to produce a coated printing paper having both superior printability and gloss. Another process is provided for producing a coated printing paper by first applying a pigment containing layer, superposing thereon a surface layer of a thermoplastic latex having a second-order transition of at least 80.degree. C. an average particle size of smaller than 100 nm and lubricants, and treating the surface layer with a calender at a temperature, to produce a coated printing paper having both superior printability and high gloss.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: November 1, 1994
    Assignee: Jujo Paper Co., Ltd.
    Inventors: Isao Kano, Hideki Fujiwara, Katsuhiko Matsunaga, Kunio Hata
  • Patent number: 5360663
    Abstract: Polyester laminates formed by coating by melt-extruding an aliphatic polyester having a melt viscosity of 1.0.times.10.sup.3 -1.0.times.10.sup.5 poises at a temperature of 190.degree. C. and a shear rate of 100 sec.sup.-1, and having a melting point of 70.degree.-200.degree. C. on to paper or cloth. The resin can be coated on paper or cloth at a low temperature with firm adherency, and the sheet thus formed is biodegradable.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: November 1, 1994
    Assignee: Showa Highpolymer Co., Ltd.
    Inventors: Yoshihiro Moteki, Nobutaka Fujiwara, Yukiharu Euruichi, Eiichiro Takiyama
  • Patent number: 5360659
    Abstract: The present invention provides a two-component infrared reflecting film which reflects light in the infrared region of the spectrum while suppressing second, third and fourth order reflections in the visible spectrum. The film comprises alternating layers of first (A) and second (B) diverse polymeric materials having a six layer alternating repeat unit with relative optical thicknesses of about .778A.111B.111A.778B.111A.111B. The polymeric materials differ from each other in refractive index by at least about 0.03.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: November 1, 1994
    Assignee: The Dow Chemical Company
    Inventors: Charles B. Arends, Walter J. Schrenk, Ray A. Lewis, Ravi Ramanathan, John Wheatley
  • Patent number: 5356705
    Abstract: A laminated weatherable film-capped siding structure with improved dimensional stability and having a reduced incidence of oil canning. The structure comprises a polymeric structure and a weatherable film of uniform gauge having at least one weatherable layer consisting essentially of a weatherable styrene acrylonitrile copolymer impact-modified with olefinic elastomer or acrylic elastomer.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: October 18, 1994
    Assignee: The Dow Chemical Company
    Inventors: Robert H. Kelch, Steven E. Finlayson
  • Patent number: 5356715
    Abstract: Viscoelastic resins useful for forming vibration damping composites, i.e., metal layers adhered by the resins, contain only the elements hydrogen, oxygen and carbon and provide vibration damping over a wide temperature range. The resins are generally linear, high molecular weight polymers having blocks of epoxy and either polyester or polyether.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: October 18, 1994
    Assignee: Morton International, Inc.
    Inventors: Harold H. Levine, J. Brandon Simons, Randall J. Meyer, Christine M. Zack, Steven J. Ney
  • Patent number: 5356703
    Abstract: A chemically adsorbed monomolecular or a laminated monomolecular film comprising a monomolecular film formed on said substrate surface by covalent S-bonds is disclosed. For example, the covalent S-bond is selected of a group consisting of --(S.dbd.O)-- and --(O.dbd.S.dbd.O)--. A method of producing a chemical adsorption film comprising; contacting a substrate containing hydroxl groups present on the surface with a non-aqueous solvent containing a material having a thionyl halide group or sulfuryl haloride group; removing unreacted surface active material remaining on the substrate by washing the substrate with a non-aqueous organic solution for making monomolecular a precursor film; reacting unreacted surface active material remaining on the adsorbed monomolecular precursor film with water; and drying the adsorbed monomolecular film is also disclosed.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: October 18, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tadashi Ohtake, Norihisa Mino, Kazufumi Ogawa