Patents Examined by Marion McCamish
  • Patent number: 6105276
    Abstract: A limiting orifice through-air-drying medium for papermaking or other absorbent embryonic webs. The medium may be used in an apparatus which can be embodied in a cover and a roll. The medium has the unique combination of a relatively high bending fatigue strength and relatively low pressure drop. The medium may comprise a laminate of a plurality of plies. The intermediate plies of the laminate may be woven with a square weave. The medium may also be used for other types of drying.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: August 22, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Donald Eugene Ensign, Robert Charles Dreisig, Michael Gomer Stelljes, Jr., Wilbur Russell Knight
  • Patent number: 6103358
    Abstract: The present invention relates to layered bodies consisting of at least one plastic foam and/or latex foam layer and particulate, superabsorbent polymers for the absorption of water and aqueous liquids, which bodies comprise the superabsorber on, between, or below the foamed plastic and/or latex layer in a quantitatively and/or locally predetermined and fixed areal configuration at a quantity ratio of plastic and/or latex foam to the superabsorber of 1:500 to 50:1. The plastic/latex foam may comprise fillers, pigments and/or synthetic fibers. The layered bodies have an increased absorption capacity for water and aqueous liquids; in particular under load. They are manufactured by spreading out the foam, applying the superabsorber in the predetermined quantity ratio, optionally by using a stencil, and by fixing it by means of a heat treatment.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: August 15, 2000
    Assignee: Chemische Fabrik Stockhausen GmbH
    Inventors: Helmut Bruggemann, Kurt Dahmen
  • Patent number: 6103598
    Abstract: A process for producing a semiconductor substrate is provided which comprises providing a first substrate made of silicon having a porous silicon layer formed thereon by making porous the substrate silicon and a nonporous monocrystalline silicon layer epitaxially grown on the porous silicon layer, laminating the first substrate onto a second substrate in a state that at least one of lamination faces of the first and the second substrates has a silicon oxide layer and the nonporous monocrystalline silicon layer is interposed between the laminated substrates, and removing the porous silicon layer by etching, wherein the porous silicon layer is removed by etching with an etchant which etches the nonporous monocrystalline silicon layer and the silicon oxide layer at respective etching rates of not more than 10 angstroms per minute.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: August 15, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Yamagata, Takao Yonehara, Nobuhiko Sato, Kiyofumi Sakaguchi
  • Patent number: 6090472
    Abstract: A nonwoven, porous fabric produced from a water modifiable polyolefin-containing film. In a preferred embodiment, the nonwoven fabric includes groups of elongated polyolefin fibers substantially oriented along a longitudinal axis. The fibers have branches extending from themselves and are bonded therebetween. Elongated channels extend generally parallel to the longitudinal axis on the surface of the fabric and within the fabric. A substantial portion of the channels are interconnected to other channels. To produce the fabric, a polymer blend is formed with the polyethylene as the minority constituent and the dispersed phase, and with polyethylene oxide as the continuous phase. In another embodiment wherein the polyethylene is the majority constituent and the polyethylene oxide is the minority constituent, a reactive blend is prepared during processing so that the blend exhibits an inverse phase morphology, the polyethylene oxide becoming the continuous phase and the polyethylene becoming the dispersed phase.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: July 18, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James H. Wang, David M. Schertz
  • Patent number: 6048921
    Abstract: The present invention relates to an applicator for flowable materials which comprises a generally cylindrical housing having a chamber, a discharge opening, a wick projecting through said discharge opening, and a projecting structure for shielding the user from flowable materials and for preventing placement of the applicator in inappropriate receptacles. Further, the present invention relates to a storage and shipping rack for said applicators and to a method of dispensing flowable materials onto a surface. Preferably, the applicator is filled with metal coating and treating compositions such as aqueous acidic chromate compositions. Most preferably, the acidic compositions contain a very low concentration of a fluorinated surfactant.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: April 11, 2000
    Assignee: Henkel Corporation
    Inventors: Robert Ashton White, Lester Steinbrecher
  • Patent number: 6046252
    Abstract: A binder composition of a phenolic novolac resin and a (lower) alkoxylated triazine-formaldehyde resin curing agent is disclosed. The triazine resins have sufficient carbon atoms in the alkoxy groups so as to provide a curing agent having a water solubility of less than 15%. The binder cures at high temperatures so as to provide improved flow and prolonged workability to the composition. The compositions are useful in refractory applications having a need for high temperature curing agents such as for maintenance and repair within refractory vessels by gunning/spraying, manufacture of electrodes by the Soderberg method, and for use in blast furnace tap holes.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: April 4, 2000
    Assignee: Borden Chemical, Inc.
    Inventor: Arthur H. Gerber
  • Patent number: 6027794
    Abstract: Prepregs, comprising the following components [A], [B] and [C], with the component [C] distributed near either or both of the surface layers without being regularly arranged.[A]: Long reinforcing fibers[B]: A matrix resin[C]: Long thermoplastic resin fibersThe prepregs of the present invention are tacky and drapable, and the composite materials obtained by heating and forming the prepregs are high in heat resistance, and very high in impact resistance and inter-layer toughness. Furthermore, the prepregs are easy to produce and high in their latitude in availability of materials.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: February 22, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Ozaki, Hajime Kishi, Nobuyuki Odagiri, Hiroki Oosedo, Hiroaki Hinomiya
  • Patent number: 6025412
    Abstract: An ink for ink jet printing includes particles of an emulsifiable dye-polymer resin dispersed in a liquid vehicle, wherein the emulsifiable dye-polymer resin includes a dye chemically attached to the polymer resin. The polymer resin contains a base chain, such as polyester, having attached thereto hydrophilic groups, such as alkali sulfonated groups, for emulsifying the resin in water. The dye may be attached within the base chain itself, or attached to the base chain as a side chain component.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: February 15, 2000
    Assignee: Xerox Corporation
    Inventors: Guerino G. Sacripante, Marcel P. Breton
  • Patent number: 6025049
    Abstract: The present invention pertains, in a preferred embodiment, to a fluid-pervious web comprising a first or wearer-contacting surface and a second or garment-facing surface. The web is particularly well suited for use as a topsheet on a disposable absorbent article. The first and second surfaces are separated from one another by an intermediate portion. The first surface of the web provides a structure which exhibits a surface energy less than the surface energy of the intermediate portion. In a preferred embodiment, the web exhibits a plurality of regions of comparatively low surface energy which define surface energy gradients where they interface with higher surface energy web surfaces. More particularly, the present invention pertains to a fluid-pervious web having a plurality of small-scale surface energy gradients which are oriented and located so as to effectively transport fluid away from the first or wearer-contacting surface.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 15, 2000
    Assignee: The Procter & Gamble Company
    Inventors: William R. Ouellette, Yann-Per Lee, A. Renee Haney, Frederick M. Langdon, John B. Burchnall
  • Patent number: 6015846
    Abstract: Particulate refractory aggregate containing elutable alkali is treated with a particulate active clay having a particle size of less than 0.5 mm in order to reduce the level of the elutable alkali. Sand recovered from spent foundry moulds and cores produced from alkaline binders can be treated to reduce its elutable alkali content and then recycled for further foundry use.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: January 18, 2000
    Assignee: Borden France S.A.
    Inventors: Philippe Marie Toussaint, Patrick Robert Queval, Johannes-Adolf-Jacobus Geraedts, Jacques Andre Caumont
  • Patent number: 6008270
    Abstract: A liquid ink jet ink wherein said ink is non-gelling and comprises a carrier, a pigment and a solid block copolymer of ethylene oxide and propylene oxide having a structure (A) and (B) defined herein.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: December 28, 1999
    Assignee: Eastman Kodak Company
    Inventor: Domenic Santilli
  • Patent number: 6004892
    Abstract: Melamine resin fibers are used for manufacturing fire-safety blankets.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: December 21, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Guenther, Wolfgang Reuther
  • Patent number: 6004673
    Abstract: The present invention provides a splittable composite fiber having improved processability on carding and superior splitting property by a splittable composite fiber comprising at least two thermoplastic resin components, and having a structure wherein a part of at least one of the components projects from the surface of the fiber.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: December 21, 1999
    Assignee: Chisso Corporation
    Inventor: Masaru Nishijima
  • Patent number: 5998281
    Abstract: Proposed is an improvement in the process for the preparation of an SOI wafer comprising the steps of: forming an oxidized surface film on the mirror-polished surface of a first mirror-polished semiconductor silicon wafer as the base wafer; forming a doped layer with a dopant in a high concentration on the mirror-polished surface of a second mirror-polished semiconductor silicon wafer as the bond wafer; bringing the base wafer and the bond wafer into contact each with the other at the oxidized surface film and the doped layer; and subjecting the thus contacted semiconductor silicon wafers to a heat treatment to effect integral bonding thereof into a precursor of an SOI wafer. The improvement of the invention is accomplished by polishing the surface of the doped layer on the bond wafer before the base wafer and the bond wafer are joined by contacting at the oxidized surface film and the doped layer so that a great improvement can be obtained in the bonding strength between layers.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: December 7, 1999
    Assignee: Shin-Etsu Handotai Co., Ltd.
    Inventors: Hiroji Aga, Kiyoshi Mitani, Masatake Katayama
  • Patent number: 5997980
    Abstract: Hollow polyester fibers having a thickness of 0.11 to 8.89 d tex (0.1 to 8.0 denier), a hollow volume (a cross-sectional area ratio of hollow to fiber) of 40 to 85%, and a crystallization degree of 20% or more and crystal size in (0 1 0) plane of 4 nm or more of polyester, has a high resistance to compression and a high recovery from compression and are useful for producing woven and knitted fabric having a high durability, pile sheet materials having high resistance to and recovery from pile prostration, and nonwoven fabrics and artificial leather materials having a high resistance and recovery from compression.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: December 7, 1999
    Assignee: Teijin Limited
    Inventors: Yoshiyuki Matoba, Hironori Gouda, Mikio Tashiro, Reizo Abe, Masaaki Sumi
  • Patent number: 5994245
    Abstract: A laminated insole (2) for a footwear has an upper layer (4) of a resilient foam material having an outline (6) shaped for incorporation in the footwear, and a bottom layer of a fibrous mat (10) and having a shape conforming with the outline (6) of the upper layer (4). The fibrous mat (10) includes a multiplicity of fibers (12), a number of which penetrate the foam material of the upper layer (4) for bonding the bottom layer (10) to the upper layer (4), and a stiffening portion (14) for providing stiffness to the insole (2). Preferably, each of the fibers (12) of those penetrating the foam material (4) emerges from the outer surface (16) thereof and thereby provides a pilosity (17) thereon. The laminated product (2) is suitable for use as an insole as well as a slip-in insole in any footwear. It takes advantage of the resilient properties of the foam, the stiffness and thermoformability of the fibrous mat and the comfort provided by the pilosity covering the upper layer of foam.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: November 30, 1999
    Assignee: Texel Inc.
    Inventors: Andre Marier, Gerard Scheubel, Barbara Redfern
  • Patent number: 5993944
    Abstract: To provide a non-impregnated type substrate useful as a base fabric for artificial leather, which is superior in leather-like handle, air permeability and lightness properties; and an artificial leather made therefrom. A non-impregnated type substrate useful as a base fabric for artificial leather, which is a fiber assembly constituted by matrix fibers and binder fibers having an elastic polymer arranged on the surface thereof, the binder fibers being dispersed in and head-bonded to the matrix fibers, wherein the elastic polymers are contained within a specified amount, the bonds between binder fibers and matrix fibers by the elastic polymer are formed within specified proportions and with particular configurations, and the substrate has a density of 0.15 to 0.45 g/cm.sup.3.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: November 30, 1999
    Assignee: Teijin Limited
    Inventors: Hiroshi Honna, Makoto Yoshida, Michikage Matsui
  • Patent number: 5989700
    Abstract: Pressure sensitive inks have selected pressure sensitivity designed for use as a pressure sensitive component of a pressure sensitive device. The ink of the device is formed of an elastic polymer binder with a filler therefor of semiconductive nanoparticles preferably uniformly dispersed in the binder.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: November 23, 1999
    Assignee: Tekscan Incorporated
    Inventor: Boris Krivopal
  • Patent number: 5989707
    Abstract: A material sheet assembly in which a label base attached to a release liner by means of an adhesive is set in roll form is used. In a step in which the material sheet assembly is continuously fed out, the release liner is released by leaving the adhesive on the label base, and the release liner is consecutively taken up. By using a noncontact-type printer, printing is effected on the adhesive surface of the label base separated from the release liner to form a printed label. The printed label is in such a form that the printed surface is disposed between the label base and an adherend. The labels can be attached immediately after they are manufactured, and they can be stored or transported by being taken up in roll form while an additional release liner is attached to the printed surface side.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: November 23, 1999
    Assignee: Lintec Corporation
    Inventors: Yoshinobu Takizawa, Fumihiko Goto
  • Patent number: 5985773
    Abstract: A fabric for tents consisting a gray woven from nylon or polyester filaments and a layer of coating composition including polyurethane, a pigment, an ultraviolet inhibitor, aluminum powders, ceramic powders, a fire retardant agent and a solvent can be protected from a yellowing appearance caused by ultraviolet rays and has a preferable color. The lifetime of the fabric can be extended. And the comparative low cost and short time are necessary for the process for preparing the fabric.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: November 16, 1999
    Inventor: Youn Jae Lee