Patents Examined by E. Rollins Buffalow
  • Patent number: 5710214
    Abstract: Provided are novel thermosetting powder coating compositions which are useful for coating metal articles and protecting such articles from acidic corrosion. The compositions are comprised of an epoxy containing acrylic copolymer crosslinked with both an aliphatic dibasic acid and a blocked polyisocyanate.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: January 20, 1998
    Assignee: PPG Industries, Inc.
    Inventors: Chun-Tzer Chou, Robert B. Barbee
  • Patent number: 5710208
    Abstract: A binder composition, a coating composition containing this binder, a process for its production and use to produce single or multi-layer lacquer coatings, particularly in the automotive sector, are described. The binder composition containsA) 25 to 75 wt. % of one of more resins containing carboxyl groups, which may contain .alpha.,.beta.-unsaturated groups, with a number average molecular weight (Mn) of 500 to 10000 g/mol and an acid value of 15 to 200 mg KOH/g,B) 25 to 75 wt. % of one or more polyethers, polyesters, polyether/polyesters and/or (meth)acrylic copolymers with at least one .alpha.,.beta.-unsaturated group and at least one epoxy group per molecule, wherein the .alpha.,.beta.-unsaturated groups and epoxy groups are present in a numerical ratio of 20:80 to 80:20, with a number average molecular weight (Mn) of up to 10000 g/mol,C) 0 to 60 wt. % of one or more polyols with at least two hydroxyl functional groups per molecule,D.sub.1) 0 to 20 wt. % of one or more melamine resins,D.sub.2) 0 to 40 wt.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: January 20, 1998
    Assignee: Herberts GmbH
    Inventors: Klaus Bederke, Carmen Flosbach, Eva Frigge, Walter Schubert
  • Patent number: 5707751
    Abstract: The present invention relates generally to shrink film compositions having improved properties, particularly improved shrink range, optics, toughness, (low) shrink force, (low) extractables and the like. More specifically, the improved shrink films of the present invention are directed to alloys or combinations comprising precise combinations of "narrow, substantially singular" melting point polyethylene with a higher melting point (by at least about 10.degree. C.), polyethylene.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: January 13, 1998
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Oscar Trini Garza, Timothy Michael Kneale, John Douglas Synder
  • Patent number: 5708086
    Abstract: The present invention is directed to a pigment dispersant composition for use with inorganic pigments in coating compositions. The dispersant composition includes a vinyl or acrylic copolymer and a transition metal or rare earth metal salt. The metal salt in combination with the copolymer is useful with inorganic pigment as it lowers the viscosity of the pigment dispersions, thus allowing a higher concentration of pigment in the dispersion and consequently providing dispersions with higher non-volatile content and higher pigment to binder ratios. The presence of the metal salts in the dispersant composition when used with surface coated metal flake pigment provides excellent corrosion reduction of the metal pigment, indicated by the reduction or elimination of hydrogen gassing by the pigment in a coating composition.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: January 13, 1998
    Assignee: BASF Corporation
    Inventors: Jeffrey S. DePue, Zenon P. Czornij, Clint W. Carpenter, Lynne G. Bemer
  • Patent number: 5707743
    Abstract: An electrophotographic developer roller is made by casting urethane prepolymer mixed with a butadiene, a trifunctional curative and ferric chloride powder. After curing, the roller is baked, which oxidizes the outer surface. The oxidized surface layer is electrically resistive, which is desirable in a developer roller. An excellent developer roller is achieved at low production cost.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: January 13, 1998
    Assignee: Lexmark International, Inc.
    Inventors: Todd Lucas Janes, Johnny Dale Massie, II, Jean Marie Massie, Ronald Lloyd Roe, Donald Wayne Stafford
  • Patent number: 5702812
    Abstract: A compliant doctor blade having excellent toner metering capabilities is disclosed. The doctor blade includes a compliant laminate (3) having a resin film backing layer and carrying a binder which contains abrasive particles, such as silicon carbide particles, and a conducting means. In a preferred embodiment the conducting means are conductive carbon black particles which are contained in the resin binder which also includes the abrasive silicon carbide. The compliant laminate is supported on an aluminum bar (1). The bar has fastened to its bottom face a compliant foam layer (2) which includes on its bottom face a shim (10) having a stiffness of from about 0.5 to about 31.0 inches of deflection/inch of length/pounds of force. The laminate is bent under the foam layer and shim where it contacts the developer roller (6). The conductive layer remains conductive as it wears during use.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: December 30, 1997
    Assignee: Lexmark International, Inc.
    Inventors: Peter W. Bracken, Jeffery R. Brener, Martin V. DiGirolamo, Sam E. Mullinix, Jr., Donald W. Stafford, Peter E. Wallin
  • Patent number: 5702827
    Abstract: Olefin thermoplastic elastomers which comprise a partially crosslinked thermoplastic elastomer comprising a crystalline polyolefin resin (A), a block copolymer (B) which is composed of a polymer block of styrene or its derivative and a specific isoprene polymer block, and an olefin rubber (C), and thermoplastic elastomer laminates, having a substrate formed from a specific olefin thermoplastic elastomer or a crystalline polyolefin resin and a skin layer formed from the above-mentioned olefin thermoplastic elastomer, which are excellent in mechanical strength, heat resistance, heat aging resistance, weathering resistance and scratch resistance have been provided by the present invention.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 30, 1997
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yuichi Itoh, Kyoko Kobayashi, Akira Uchiyama, Toru Takehara
  • Patent number: 5700570
    Abstract: A composite construction material comprises consecutive laminae of a kraft linerboard optionally coated with a sealant, a layer of polymer, a plurality of superposed layers of water-resistant paperboard adhered together, a second layer of polymer, and a second layer of kraft linerboard.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: December 23, 1997
    Assignee: K2, Inc.
    Inventor: Mohamed A. Fahmy
  • Patent number: 5693387
    Abstract: A multiple layer structure comprising a skin layer, a barrier layer, a radio frequency susceptible layer having a first polyolefin in an amount within a range of 30-60% by weight, a second polyolefin in an amount within the range of 25-50% by weight, a radio frequency susceptible polymer in an amount within the range of 3-40% by weight, a styrene and hydrocarbon block copolymer in an amount within the range of 5-40% by weight of the sealant layer.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 2, 1997
    Assignee: Baxter International Inc.
    Inventors: Larry Rosenbaum, Steven Giovanetto, Sidney T. Smith, David V. Bacehowski, Gregg Nebgen, Varsha Kalyankar
  • Patent number: 5693413
    Abstract: A moldable material includes chipped or stripped rubber intermingled with a curable binder. It may also include ground glass in an amount of from 0% to 55% by weight. The binder is chosen from the group including aromatic urethane binders, aliphatic urethane binders, latex binders and epoxy binders.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: December 2, 1997
    Assignee: Magnum Industries Ltd.
    Inventors: Larry C. Hesterman, Harold Moen
  • Patent number: 5691425
    Abstract: Polyurethane dispersions prepared by polymerization, initiated by free radicals, of polyurethane macromonomers containing carboxyl, phosphonic acid or sulfonic acid groups and lateral vinyl groups and optionally terminal vinyl, hydroxyl, urethane, thiourethane and/or urea groups.These polyurethane dispersions are suitable for the production of coatings on substrates, as adhesives or as binders in printing inks.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: November 25, 1997
    Assignee: Hoechst AG
    Inventors: Heinz-Peter Klein, Gerd Walz, Markus A. Schafheutle
  • Patent number: 5686532
    Abstract: A binder composition, a coating composition containing this binder, a process for its production and use to produce single or multi-layer lacquer coatings, particularly in the automotive sector, are described. The binder composition containsA) 25 to 75 wt. % of the reaction product of one or more carboxy-functionalised poly(meth)acrylic copolymers and/or one or more carboxy-functionalised polyesters, each with an acid value of 15 to 200 mg KOH/g, with one or more lactones,B) 25 to 75 wt. % of one or more epoxy-functionalised crosslinking agents with at least two epoxy functional groups per molecule, with a number average molecular weight (Mn) of 200 to 10000 g/mol,C) 0 to 60 wt. % of one or more polyols with at least two hydroxyl functional groups per molecule,D.sub.1) 0 to 20 wt. % of one or more melamine resins,D.sub.2) 0 to 40 wt. % of one or more capped polyisocyanates, wherein the sum of the weight percentages of components A), B), C), D.sub.1) and D.sub.2) is 100 wt. %, together withE) 0 to 10 wt.
    Type: Grant
    Filed: June 16, 1995
    Date of Patent: November 11, 1997
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Klaus Bederke, Volker Duecoffre, Carmen Flosbach, Eva Frigge, Walter Schubert, Friedrich Herrmann
  • Patent number: 5679432
    Abstract: The present invention relates to a multi-layer laminate structure. The multi-layer laminate structure includes a foam core element and a fiber-reinforced plastic matrix. The foam core element includes at least an outermost portion that is formed from a closed cell expanded foam, wherein the closed cell expanded foam is expanded polyethylene-polystyrene copolymer foam. The outermost portion of the foam core element is constructed from a material that is not attacked or degraded by the material used in the fiber-reinforced plastic matrix. The fiber-reinforced plastic matrix is formed over the outermost portion of the core element.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: October 21, 1997
    Assignee: Benchmark Foam, Inc.
    Inventors: John H. Holmquest, John P. Devine
  • Patent number: 5110683
    Abstract: The invention relates to the production of films having in their thickness at least two superimposed zones, including a semimetallic zone and an electrically insulating zone, by irradiating a polymer film by means of a high energy ion beam.It is possible by this process to produce semimetal (1)/insulant (2)/semimetal (3) structures by irradiating the polymer under vacuum by means of light ions or with a limited stopping power having an energy of at least 1 MeV/amu. It is also possible to obtain insulant (4)/semimetal (5)/insulant (6) structures by irradiating, in a confined atmosphere, the polymer by means of heavy ions or ions having a high energy loss with an energy of at least 1 MeV/amu.By irradiating only certain zones of the film, it is thus possible to form embedded or surface-positioned electrical connections.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: May 5, 1992
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Emmanuel Balanzat, C. Boiziau, Charles Darnez, Jean-Paul Duraud, Alain LeMoel
  • Patent number: 4542061
    Abstract: An infrared radiation absorbing film suitable for agricultural purposes comprising a first layer of olefin resin containing an amorphous hydrated aluminosilicate gel and optionally, additional layers of an olefin resin encompassing said first layer.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: September 17, 1985
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Nobuo Fukushima, Shuji Kitamura, Kiyohiko Nakae, Kozo Kotani, Takayuki Terazawa, Toyoaki Nakarai
  • Patent number: 4537922
    Abstract: The present invention is a sulfur stabilized composition. The composition comprises an oxidized polyolefin, preferably oxidized polyethylene or oxidized polypropylene, with oxidized polyethylene being most preferred. The composition of the present invention optionally contains a filler.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: August 27, 1985
    Assignee: Allied Corporation
    Inventors: Irving B. Chang, Robert E. Beckwith, Jr.
  • Patent number: 4533587
    Abstract: Connection insulators having a plurality of insulating compartments for electrically isolating electrical connections formed from strips of insulating material of indeterminate length. In one embodiment, a first strip of insulating material is supplied to a securing station at a predetermined average rate of supply and a second strip of insulating material is supplied to a forming station at a predetermined average rate of supply greater than the predetermined average rate of supply of the first strip with the pliability of the second strip being enhanced by heating the strip for aiding the deformability characteristics of the second strip. The second strip of insulating material is deformed into predetermined patterns at the forming station and then moved into position adjacent to the first strip of insulating material at the securing station.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: August 6, 1985
    Assignee: General Electric Company
    Inventors: Eldon E. Moodie, Richard D. Burns
  • Patent number: 4532179
    Abstract: A metal-ceramic bonded material is described wherein a metal member comprising a metal film and an oxide film as an upper layer is bonded to a ceramic member by a heat-resistant adhesive so that the surface of the oxide film of said metal member faces the surface of the ceramic member.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: July 30, 1985
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Akio Takami, Toshitaka Matsuura, Kazutoshi Tanaka, Toshifumi Sekiya
  • Patent number: 4528212
    Abstract: Coated ceramic substrates or structures having a barrier layer against alpha-particle radiation and integrated circuits prepared therefrom. Ceramic surfaces having reduced or modified surface roughness are also provided.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: July 9, 1985
    Assignees: International Business Machines Corporation, United Kingdom Atomic Energy Authority
    Inventors: James A. Cairns, James F. Ziegler
  • Patent number: 4528234
    Abstract: A transparent laminate is disclosed, which laminate comprises a transparent plastic resin film or sheet substrate (A), a thin layer (B) of at least one metal such as aluminium, tin, iron, zinc, or magnesium formed on the film or sheet substrate (A) by vacuum deposition or sputtering, and a carboxyl group-containing polyolefin layer (C) formed on the metal layer (B) by lamination. In one embodiment, the film or sheet substrate may have a silicon oxide or titanium oxide layer (D) formed thereon by vacuum deposition or sputtering of the oxide.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: July 9, 1985
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Keisuke Kaiho, Hidetoshi Nagata