Resin Or Rubber Element Patents (Class 428/313.5)
  • Patent number: 6350513
    Abstract: A lightweight, three dimensional structural article having low radar reflectivity characteristics and good mechanical properties is fabricated from a syntactic foam core having a structural outer skin. A syntactic foam sealing adhesive film is applied to the surface of syntactic foam core and under the outer skin to both seal the foam core and adhere the outer skin. The syntactic foam sealing adhesive is formulated to provide a uniform layer and to reduce the fabrication time and labor while improving the overall radar absorbing characteristics of the structural article.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: February 26, 2002
    Assignee: McDonnell Douglas Helicopter Company
    Inventors: James L. Melquist, Walter Phillips, Paul L. Kuhl
  • Patent number: 6347411
    Abstract: A composition suitable for use in linings for articles of clothing is disclosed, which is a mixture of a discontinuous solid phase of microballoons, and a viscous liquid continuous phase comprising a polydimethylsiloxane; the polydimethylsiloxane of the continuous phase has a viscosity between 100,000 cs and 2,000,000 cs; the viscosity of the polydimethylsiloxane of the continuous phase is achieved by incorporating polydimethylsiloxane molecules of sufficiently high molecular weight; containment within other materials is optional; additional dyes, pigments, particles, fibers, felts or fabrics can confer additional visibility, strength, stiffness, dryness or friction; accompanying properties of malleability, and thermal, electrical, vibratory, shock and acoustical insulation, also make this composition useful for other applications that require such qualities.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: February 19, 2002
    Assignee: Marine Manufacturing Industries Inc.
    Inventor: Graham D. Darling
  • Patent number: 6344267
    Abstract: After being mixed with a boric acid-based inorganic material, styrene beads are pre-formed and then left to age. Thereafter, a Styrofoam product (1) is produced by adding boric acid-based inorganic materials to the pre-formed beads and conducting a main expansion treatment. The surface of each foamed styrene bead (2) of the Styrofoam product (1) is covered by a coating film (3). If exposed to fire, the coating films (3) suppress burning of the styrene beads (2). In case a great quantity of heat is applied, the vitreous coats into which the coating films (3) have changed to prevent the styrene beads (2) from burning deeper. As the vitreous coats absorb black smoke, generation of black smoke is prevented.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: February 5, 2002
    Inventor: Takashi Fujimori
  • Publication number: 20020006507
    Abstract: A foam layer can be formed at a temperature at which the surface quality of a surface layer is not deteriorated, and a molding technique that is excellent in adhesiveness of a foam layer and a surface layer or/and a base member is developed. For the purpose of obtaining a polypropylene resin molding composite for automobile, the present invention is characterized by a polypropylene resin molding composite for automobile comprising a surface layer and a foam layer, or a surface layer, a foam layer, and a base member, wherein the surface layer comprises a surface layer of a polypropylene resin and a laminate of a cushioning material, where the cushioning material is a polypropylene resin expanded sheet, and the foam layer comprises thermoplastic resin expanded particles comprising a core that is made of a polypropylene resin and is in an expanded state and a polyethylene resin coat layer covering the core and is in a substantially non-expanded state.
    Type: Application
    Filed: May 30, 2001
    Publication date: January 17, 2002
    Applicant: Mitsubishi Chemical Foam Plastic Corporation and Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaaki Yokoyama, Masahiro Tanaka, Keiichi Honjo, Sukekuni Itoh, Yoshikazu Morinaga
  • Patent number: 6336487
    Abstract: A pneumatic tire which is used for a vehicle and obtained after a rubber material is formed by vulcanization. A cap portion (12A), which is an upper layer of a tread and directly contacts the road surface, is a foam rubber which includes innumerable elongated closed cells (24). The outer portion of the elongated closed cell (24) is coated by a resinous protective layer (26). During the vulcanization process of the tire, a resin whose viscosity is lower than that of a rubber matrix and a blowing agent which generates gas are kneaded with a rubber material so as to obtain a rubber composition. The rubber composition is formed in the shape of a band and adhered to a crown portion of a raw tire casing. The resin is melted by the heat of vulcanization and the viscosity of the resin is lower than that of the rubber matrix. The gas generated in the rubber moves toward and concentrates at the inner side of the resin.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: January 8, 2002
    Assignee: Bridgestone Corporation
    Inventors: Hiroyuki Teratani, Tomohisa Nishikawa, Yuji Yamaguchi
  • Patent number: 6303215
    Abstract: Disclosed is a transfer belt for an electro-photographic apparatus, comprising a seamless reinforcing layer made of a continuous string, and a semi-conductive rubber layer formed on the reinforcing layer.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 16, 2001
    Assignee: Kinyosha Co., Ltd.
    Inventors: Saburo Sonobe, Akio Onuki
  • Patent number: 6299952
    Abstract: A moldable silicone rubber sponge composition comprising (A) 100 weight parts silicone rubber base compound with a Williams plasticity at 25° C. of 50 to 600 comprising (a) 100 weight parts diorganopolysiloxane gum that contains at least 2 alkenyl groups in each molecule and (b) 1 to 120 weight parts wet-process silica, (B) 0.01 to 50 weight parts hollow gas-containing thermoplastic resin powder, and (C) curing agent in an amount sufficient to effect curing of the composition. The invention is further a silicone rubber sponge afforded by the thermosetting of the above-defined moldable silicone rubber sponge composition and a method for producing the silicone rubber sponge.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: October 9, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hiroshi Honma, Mitsuo Hamada
  • Publication number: 20010019763
    Abstract: A system is provided for pelletizing particulate raw matter having a first density, and thereafter subjecting the pellets to a milling process to obtain a powdered form of the particulate. During pelletizing steam can be added. The resulting powder is denser, or more granular or has better flow with less dust than the pre-pelletized particulate matter having the first density. The powderized particulate has applications for pharmaceutical, nutritional and herbal end products.
    Type: Application
    Filed: April 17, 2001
    Publication date: September 6, 2001
    Applicant: BOTANICALS INTERNATIONAL
    Inventors: Peter M. Hafermann, Emilio J. Gutierrez, Matthew W. Phillips
  • Patent number: 6277454
    Abstract: A single walled container for storing hot or cold foods or liquids having a layer of insulation comprised of void containing particles held together with a binder applied to the outer part of the sidewall. The insulation layer provides a controlled amount of insulation which is sufficient to prevent pain to the fingers yet it transmits sufficient heat to warn the user of the temperature of the container's contents. The binder may be any thermoplastic or thermoset resin, and other ingredients may be added to the binder to control viscosity, density, or color.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: August 21, 2001
    Assignee: Insulation Dimension Corporation
    Inventors: Douglas L. Neale, Richard J. Pasin
  • Publication number: 20010011387
    Abstract: A rubber glove is produced by sequentially performing the step of immersing a glove mold in a coagulating synthetic rubber latex containing synthetic rubber in latex form, thermally expansible microcapsules, and a rubber coagulant to form a coagulant-containing synthetic rubber film on the surface of the glove mold; the step of immersing the glove mold in rubber-incorporating latex to form a gelled rubber layer; the step of heating a rubber laminate composed of the synthetic rubber film and the gelled rubber layer to vulcanize the rubber laminate; and the step of turning the vulcanized rubber laminate inside out, and removing it from the glove mold. This method produces a rubber glove, which is excellent in anti-blocking properties and grip under dry or wet conditions, by a simple procedure and for a low cost.
    Type: Application
    Filed: January 29, 2001
    Publication date: August 9, 2001
    Inventors: Shinzo Yamashita, Masaru Fujii, Tadao Nishimatsu
  • Patent number: 6265040
    Abstract: A thermally insulated sleeve is adapted to fit over a cup. The sleeve has a sidewall having an inside surface and an outer surface. The sidewall is adapted to seal the sidewall upon itself and to form a seam. A thin thermally insulating coating having a controlled thickness is supported by the sidewall. The thin thermally insulating coating is comprised of a binder and void containing particles, ranging from 0.1 microns to 200 microns in size, adapted to being restricted by the binder. A heat-activated adhesive is supported by the inside surface of the sidewall. When the sleeve is heated the heat activated adhesive bonds the sleeve to the cup.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: July 24, 2001
    Assignee: Insulation Dimension Corporation
    Inventors: Douglas L. Neale, Richard J. Pasin
  • Patent number: 6265059
    Abstract: The present invention provides a porous film obtained by coagulating polymer particles in an emulsion into the form of a film while maintaining their particle shape. The spaces between particles are left as pores, and as a result, the porous film has a plurality of thus-formed pores. By controlling the polymer particle diameter, the distribution of the particle diameter, and the solid concentration of the emulsion, the size of the pores of the film, the rate of pore area and the density of pores can be properly determined. The porous film is suitable for various applications including a recording subject for ink-jet printing, other recording subjects, films used in various industries, and the like.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: July 24, 2001
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Katsuyuki Kono, Yuko Watanabe
  • Patent number: 6224961
    Abstract: Porous, absorbent macrostructures having improved fluid handling capabilities that include inter-particle bonded aggregates, and are useful in absorbent articles, such as diapers, adult incontinence pads and sanitary napkins, are disclosed. The inter-particle bonded aggregates of these macrostructures are made from mixtures of particulate absorbent polymers having different fluid handling properties, different shapes, or both. These macrostructures can be made from a wider variety of hydrogel-forming absorbent polymers without sacrificing desired fluid handling properties, and without being prone to gel blocking.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: May 1, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Kesyin F. Hsueh, Reiko Sasaki
  • Patent number: 6224969
    Abstract: The invention relates to an optical phantom that is suitable for simulating the optical properties of biological material and to a method of producing said phantom. The phantom is comprised of a matrix of poly(vinyl alcohol) (PVA) and spherical particles whose refractive index differs from that of the PVA. Preferably the PVA has a level of hydrolysis of >98%. Preferably the spherical particles are hollow polystyrene particles. In addition, light-absorbing and light-scattering substances may be added to the matrix.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: May 1, 2001
    Assignee: Stichting Voor de Technische Wetenschappen
    Inventors: Wiendelt Steenbergen, Frits Frans Maria De Mul, Jan Greve
  • Patent number: 6171688
    Abstract: Composite products incorporating a polymer matrix, polymer microspheres, glass microspheres and natural fibers, particularly kenaf and wood fibers, are described. The polymer microspheres are 15 to 50 microns in diameter and are smaller than the glass microspheres which are 50 to 200 microns in diameter. The polymer microspheres reduce voids and prevent cracking of the glass microspheres upon compression. The composites have low cost and high strength.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: January 9, 2001
    Assignee: Board of Trustees operating Michigan State University
    Inventors: James Zheng, Roger J. Morgan, Robert Jurek