Patents Examined by Chris Raimund
  • Patent number: 5272006
    Abstract: A low fiber, high filler content matrix board is provided. The matrix board is characterized by a total mold shrinkage of not more than 0.002 "/", wherein the shrinkage is substantially non-directional. In addition to the fibers and fillers, the board further comprises a resin binder. A matrix mold made from the board is provided together with a method for forming a flexographic printing plate from such a matrix mold and a printing plate made according to this method.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: December 21, 1993
    Assignee: Lydall, Inc.
    Inventor: Richard L. Maine
  • Patent number: 5270107
    Abstract: A nonwoven filamentary web having high loft is produced by extruding a molten thermoplastic polymer or polymer blend through a spinneret to form continuous filaments while maintaining extrusion conditions which induce melt-fracture of the extrudate; attenuating the thus extruded melt-fractured filaments to obtain filamentary material having a crimped structure; and depositing the melt-fractured filamentary material on a collection surface and forming a web therefrom.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: December 14, 1993
    Assignee: Fiberweb North America
    Inventor: Scott L. Gessner
  • Patent number: 5268229
    Abstract: This invention relates to spinnerets having orifices of unique cross-sections, the spinnerets being useful for extruding therethrough filaments having "U" and "E" shaped cross-sections with stabilizing legs. The use of strategically placed stabilizing legs allow the filaments to maintain the desired shape. The "U" shaped filament cross-section provides improved drainage over previous filament cross-sections.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: December 7, 1993
    Assignee: Eastman Kodak Company
    Inventors: Bobby M. Phillips, Jack L. Nelson, William A. Haile, Hugh A. Thompson
  • Patent number: 5264277
    Abstract: An opaque, biaxially oriented multi-layer polymeric film structure of reduced surface coefficient of friction.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: November 23, 1993
    Assignee: Mobil Oil Corp.
    Inventors: Jean-Pierre Frognet, Lajos E. Keller, Maurice Petitjean
  • Patent number: 5260849
    Abstract: An electrostatic attracting sheet which is incorporated in X-Y plotters or the like machines in order to attract drawing papers to a supporting board in the machines while the drawing of any given letters and/or figures is done on the drawing papers, the attracting sheet comprising crystal whiskers of potassium titanate which are coated with a white conductive substance such as tin and are dispersed in plastics sheet at a content such that a volume resitivity of an order of 10.sup.12 to 10.sup.14 .OMEGA..cm is imparted to the sheet, which sheet is made white or light gray due to such white whiskers dispersed therein.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: November 9, 1993
    Assignee: Abisare Co., Ltd.
    Inventor: Keiji Kasahara
  • Patent number: 5260345
    Abstract: Disclosed are absorbent foam materials suitable for use as or in the absorbent cores of absorbent articles, such as diapers which absorb and retain aqueous body fluids. Such foam materials comprise hydrophilic, flexible open-celled structures which are preferably prepared by polymerizing high internal phase (HIPE) water-in-oil emulsions. Such foam materials have a pore volume of from about 12 to 100 mL/g, and a capillary suction specific surface area of from about 0.5 to 5.0 m.sup.2 /g. These materials also exhibit a resistance to compression deflection such that a confining pressure of 5.1 kPa produces after 15 minutes a strain of from about 5% to 95% compression when the material is saturated at 37.degree. C. to its free absorbent capacity with synthetic urine.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: November 9, 1993
    Assignee: The Procter & Gamble Company
    Inventors: Thomas A. DesMarais, Keith J. Stone, Hugh A. Thompson, Gerald A. Young, Gary D. LaVon, John C. Dyer
  • Patent number: 5258235
    Abstract: Decorative laminates which provide a decorative effect similar to that of marble or synthetic marble are achieved by constructing the core from sheets having a very low opacity. These sheets are prepared from bleached Kraft pulp and do not contain titanium dioxide or other opacifying pigments. The core sheets are saturated with resins such as melamine formaldehyde, polyester or epoxy resin. These saturating resins approximately match the refractive index of the bleached Kraft pulp and provide a translucent effect. Core sheets may be assembled with conventional decor sheets and an abrasion-resistant overlay to provide decorative laminates. Due to the translucent nature of the core, the color of the decor sheets is shown throughout the thickness of the laminate. This results in a uniquely decorative edge.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: November 2, 1993
    Assignee: The Mead Corporation
    Inventors: Mahendra Mehta, Richard D. Brownhill, William M. Stanard, Jr.
  • Patent number: 5256462
    Abstract: A waterproof, thermal resistant packaging wrap, especially for large diameter cylindrical objects, such as oils of metal. The wrap comprises a layer of woven or unwoven, hydrophobic polymeric fabric, a layer of closed- or open-cell hydrophobic polymeric foam, and an intermediate layer comprising a plurality of parallel, elongated, reinforcing members. The reinforcing members comprise an extruded thermoplastic material, wrapped in a protective sheet and calendered to a thickness of at least about 1/10 inch, and width of about 3-4 inches.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: October 26, 1993
    Inventors: William S. Callahan, Karl B. Shields
  • Patent number: 5254402
    Abstract: A molding laminate includes a cross-linked polyolefin resin foam, a facing material laminated on the foam, and an adhesive layer adhering the foam and the facing material to each other. The adhesive layer comprises a water-based adhesive material cured by a curing agent, and is baked in advance of the interlaminal adhesion process onto the cross-linked polyolefin resin foam and/or the facing material.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: October 19, 1993
    Assignee: Toray Industries, Inc.
    Inventors: Syunji Okubo, Toshiharu Nakae, Osamu Wada, Masayuki Togo, Fusayoshi Akimaru
  • Patent number: 5248553
    Abstract: A coated molded article obtained by coating a lacquer containing an organic solvent on a molded article produced from a resin composition comprising 100 parts by weight of one resin selected from the group consisting of an acrylonitrile-butadiene-styrene terpolymer resin, a mixture of said terpolymer with a polyvinyl chloride resin, and an acrylonitrile-ethylene propylene rubber-styrene terpolymer resin, 10 to 50 parts by weight of thermoplastic polyester resin, and 1 to 100 parts by weight of an electrically conductive fiber.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: September 28, 1993
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Susumu Miyashita, Makoto Sugiura
  • Patent number: 5246784
    Abstract: Ultrathin thermostable bismaleimide films are produced by converting Langmuir-Blodgett layers of ionic precursors based on bismaleamide.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: September 21, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Harald Fuchs, Ulrike Licht, Wolfgang Schrepp
  • Patent number: 5236758
    Abstract: A heat-insulator consisting ofa) A finely distributed, powdery or fibrous substanceb) A microporous casing andc) A gas- and watertight, metal-free casing.The heat insulator is manufactured by optionally the powdery or fibrous substance, optionally bringing it into a microporous casing, optionally pressing it and then optionally drying it. The powdery substance is then brought with the microporous casing into a gas- and watertight, metal-free casing. This gas- and watertight casing is optionally evacuated and sealed.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: August 17, 1993
    Assignee: Degussa AG
    Inventors: Gerhard Sextl, Roland Reuter, Hans Strack, Peter Kleinschmit, Rudolf Schwarz
  • Patent number: 5232648
    Abstract: A bioabsorbable fiber useful for the manufacture of medical devices is obtained from a polymer containing from about 15 to about 30 mole percent glycolide in a melt spinning operation carried out under low shear conditions. The fiber possesses excellent tensile strength and a high level of retention of its original strength on storage.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: August 3, 1993
    Assignee: United States Surgical Corporation
    Inventors: John Kennedy, Cheng-Kung Liu
  • Patent number: 5227230
    Abstract: A thermal control material which is flexible and highly conformable comprises a thin substrate of porous expanded polytetrafluoroethylene which has been metallized on one of its surfaces by vacuum deposition to provide a thin metal film (usually aluminum). A multi-layer construction is made up by joining together a plurality of metallized layers at intervals over the areal extent of the construction, e.g. by discontinuous stitching or by adhesive spots. The material is light, strong and has excellent drape characteristics, together with good thermal insulation properties.
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: July 13, 1993
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Gordon J. A. McGlade
  • Patent number: 5225265
    Abstract: Composite assemblies prepared from thermosettable matrix resin-impregnated fiber-reinforced prepregs, conductive metal screens, and film adhesives are provided which do not develop microcracks after extensive thermal cycling. The composite assemblies are particularly useful in the manufacture of vehicles in the transportation industry, especially aircraft.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: July 6, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Jill M. Prandy, Hermann Sitt
  • Patent number: 5223335
    Abstract: A process for the production of a fiber-reinforced composite material, which comprises the steps of(1) preparing a polymeric composition containing a substantially linear aromatic oligomer having a terminal aliphatic hydroxyl group, bis(acylcaprolactam) and a catalyst which promotes a ring opening-addition reaction of a hydroxyl group and a caprolactam ring,(2) melting the polymeric composition and impregnating it into a fibrous reinforcing material to form a impregnated product, and(3) heating the impregnated product up to a temperature sufficient to open the caprolactam ring while inhibiting elimination of caprolactam thereby to form, as a matrix resin, a thermoplastic copolymer having an ester group and an amide group in its main chain;and a fiber-reinforced composition material produced by the above-mentioned process.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: June 29, 1993
    Assignee: Teijin Limited
    Inventors: Hiroo Inata, Shunichi Matsumura, Takashi Yoshitomi
  • Patent number: 5221572
    Abstract: A protective fabric suitable for use in hazardous environments such as those in which nuclear, chemical and biological warfare agents or similar hazardous elements exist. In general, the protective fabric comprises a plurality of layers of air- and water-vapor-permeable, thin, stretchable fabric materials, each being treated to provide separate or combined protective functions. The protective fabric may be fashioned into articles of protective apparel suitable for applications where close-fitting and conforming garments are required and where heat-stress and bulk of material is of concern.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: June 22, 1993
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventor: Pierre P. Meunier
  • Patent number: 5219656
    Abstract: A unique composition of matter useful for treating glass fibers is claimed containing a film forming polymer, an organo coupling agent, a filament lubricant and an allylic compound, such as triallylcyanurate. The glass fibers carrying the dried residue of an aqueous chemical treating composition containing the unique chemical treating composition can be used to prepare a thermosetting plastic composite having improved strength. The composites so prepared are useful in making clear, translucent panels of improved weatherability and pultrusion profiles having higher strengths, such as compressive, shear and flexural strengths.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: June 15, 1993
    Assignee: PPG Industries Inc.
    Inventors: Michael W. Klett, Kenneth D. Beer
  • Patent number: 5219646
    Abstract: The invention provides novel blends of starch with polyesters, and shaped articles of such blends, including fibers, foams and films, nonwovens from the fibers and disposable products such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and toughness properties adequate for end uses such as in disposable diapers. The polyesters are based upon polyethylene terephthalate copolymerized with other ingredients, including non-aromatic diacids, such as adipic and glutaric acids, polyethylene ether groups, such as diethylene glycol or higher polyalkylene glycols, and hydroxy acids.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: June 15, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Francis G. Gallagher, Hyunkook Shin, Raymond F. Tietz
  • Patent number: 5219648
    Abstract: A stampable sheet shaped-product has a skin layer consisting essentially of a foamable thermosetting resin and formed on and in one or both of surfaces of a sheet-like open cell plastic foam. Optionally, a facing material layer of a proper material may be formed on one or both of surfaces of the skin layer. Such stampable sheet shaped-product is produced by applying a composition consisting essentially of a foamable thermosetting resin onto one or both of surfaces of a sheet-like open cell plastic foam, so that the one or both surfaces is or are impregnated with the composition. Optionally, a proper facing material is placed on one or both of the surfaces, and the resulting material is subjected to a hot pressing. Alternatively, the stampable sheet shaped-product may be produced by a process including a thermal treatment step interposed between the above-described applying and hot-pressing steps.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: June 15, 1993
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Kiyotake Morimoto, Yasuo Imashiro, Takahiko Matsumoto