Patents Examined by P. C. Ives
  • Patent number: 4859522
    Abstract: The invention has as its object multi-coat nonskid surfacings which comprs one or more priming coats and one or more nonskid coats. Each coat comprises a base and a hardener which are mixed before use. The bases contain in particular hydroxylated vinyl terpolymer resins and the hardeners contain a polyisocyanate which reacts with these resins to yield cross-linked polymers known as polyvinyl urethane. The figure represents comparative wear tests. Curves C1 to C3 represent the results measured on known surfacings. Curve C4 represents the results measured on a surfacing according to the invention.One application is the protection of ship decks, particularly flight decks, or offshore oil prospecting platforms.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: August 22, 1989
    Assignee: Etat Francais as represented by the Delegue general pour l'armement
    Inventor: Christian Cambon
  • Patent number: 4857386
    Abstract: An inkable sheet comprises a base sheet, such as a PET film, having on a surface thereof an ink-absorbent resin layer comprising a vinyl pyrrolidone polymer and an acrylic or methacrylic polymer.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: August 15, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: Alan Butters, Diana C. Blackmore, Darrin J. Page
  • Patent number: 4855181
    Abstract: A laminated structure comprising a base material comprising polyvinyl chloride resin, polystyrene resin, polyacrylic resin, polycarbonate resin and polyamide resin; having provided on at least one surface thereof a layer of a blend of a polyesteramide and an EVOH. In this laminated structure the base material layer and the EVOH layer adhere firmly to each other, and the structure is exhibits excellent gas barrier properties, prevention of plasticizer bleeding and soil prevention, and is useful as wall paper, portfolio, desk mat, etc.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: August 8, 1989
    Assignee: Kuraray Co., Ltd.
    Inventors: Hiroyuki Shimo, Isao Kanesige, Nobuo Tanaka
  • Patent number: 4855168
    Abstract: A synthetic resin sheet integrally coextruded by coextruding sheet main body portions and a slender notching strip interposed between right and left side sheet main body portions, wherein the notching strip is formed of a mixture resin material of a first synthetic resin material of molding material of the sheet main body portions, a second synthetic resin material impossible to be bonded with the first synthetic resin material, a third synthetic resin material possible to be bonded with the first and second synthetic resin materials, and a fourth synthetic resin material for softening the molded notching strip, melt index value of the notching strip is the same as or substantially lower than that of the main body portions, and the softening temperature of the notching strip is the same as or substantially higher than that of the sheet main body portions, and a thermally molded container formed of the sheet, thereby smoothly and clearly separating the sheet main body portions and the notching strip of the she
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: August 8, 1989
    Assignee: Yoshino Kogyosho Co., Ltd.
    Inventor: Yasuyuki Imaizumi
  • Patent number: 4853276
    Abstract: There is provided a novel marble-translucent thin resilient decorative sheet 1, which comprises thin permeable pulp paper 2, fine whitish inorganic filler powder, and a substantially transparent cured resin contained by impregnation throughout the pulp paper, said filler powder being uniformly deposited onto at least the top surface of the pulp paper and being firmly fixed thereto. The decorative sheet is produced by impregnating fine whitish inorganic filler-loaded permeable pulp paper with a liquid polymerizable resinous composition for forming a substantially transparent cured resin, placing the impregnated pulp paper between molding plates, and polymerizing the resinous composition into a cured resin; or by impregnating permeable non-loaded pulp paper containing no filler powder with the liquid resinous composition containing fine whitish inorganic filler powder and carrying out the polymerization between molding plates as described above.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: August 1, 1989
    Assignee: Inax Corporation
    Inventor: Toyokazu Kurushima
  • Patent number: 4851287
    Abstract: Described herein is cookware formed from a laminate, said laminate comprising three sheets made from a thermoplastic resin, the inside sheet made from a thermoplastic resin having a lower use temperature than the two outside sheets.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: July 25, 1989
    Inventor: Tyler F. Hartsing, Jr.
  • Patent number: 4849283
    Abstract: A color plus clear composite coating and process are disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a transparent top coat to the base coat. The base coat composition is a liquid crosslinkable composition comprising a polyepoxide and a polyacid curing agent which comprises a half ester formed from reacting an acid anhydride with a polyol. The top coat composition is a powder coating. The resultant composite coating exhibits improved distinctness of image, making the composite coating particularly useful as an automotive top coat.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: July 18, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Samuel Porter, Jr., Dennis A. Simpson, William P. Blackburn
  • Patent number: 4847145
    Abstract: Disclosed is a film for keeping freshness of vegetables and fruit which has an ethylene-adsorptive activity. The film preferably contains a fine-porous material. According to the film, the ethylene gas evolved from vegetables and fruit can be very effectively removed and thus freshness of vegetables and fruit can be maintained.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 11, 1989
    Inventor: Mitsuo Matsui
  • Patent number: 4846932
    Abstract: Water setting paper (high water-absorbency material) comprised of pulp fiber, water-soluble resin and high wate-absorbency resin is produced in sheet form for use in urine containers or portable toilets. Water setting paper or the high water-absorbency sheet thus formed absorbs and solidifies the urine, allowing the urine to be disposed of easily, rapidly and hygienically.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: July 11, 1989
    Assignee: Kuromatsu Corporation Co., Ltd.
    Inventors: Takeshi Karita, Yoshiro Saito, Shunichiro Kuromatsu
  • Patent number: 4844979
    Abstract: The receptivity of shaped polymer articles (e.g., self-supporting films of polypropylene) to subsequently applied organic coatings is enhanced by exposure to an electrical discharge in the presence of a chlorocarbon or chlorofluorocarbon gas, thereby providing an extremely thin chlorine-containing surface layer in which the Cl:C ratio is inversely related to the distance from the face of the layer. Preferred embodiments of the invention include tape products in which the primed surface of the backing is coated with a pressure-sensitive adhesive or a low adhesion backsize.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: July 4, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark A. Strobel, Krishnakant P. Vora
  • Patent number: 4842909
    Abstract: Carbon bonded carbon fiber composites are useful to minimize or eliminate volatility, splashing and losses (e.g., due to the effect of applied forces) of liquids in containers, especially of liquid cryogens in dewars. They are also useful as getters for gaseous contaminants, including radon, tritium, etc.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: June 27, 1989
    Inventor: Gilbert W. Brassell
  • Patent number: 4842906
    Abstract: A packing laminate for the manufacture of packing containers for liquid contents, including an inner layer (5) of fibrous material with outer layers (6) and (7) of liquid-tight material and a color layer (8) with the object of creating a decoration or similar identification marking on the finished container. The color layer (8) is hardened through electron irradiation and in order to protect the inner layer (5) from the effect of this irradiation the laminate comprises a layer (14) applied between the inner layer (5) and the color carrying plastic layer of a material capable of absorbing electrons during the irradiation.
    Type: Grant
    Filed: July 2, 1987
    Date of Patent: June 27, 1989
    Assignee: AB Tetra Pak
    Inventors: Gert Ekdahl, Tommy Nystrom
  • Patent number: 4840849
    Abstract: In accordance with this invention there is obtained a laminated article in which a chlorosulfonated polyolefin composition and a fluorine-containing elastomer composition have firmly bonded to each other by making good use of a chlorosulfonated polyolefin composition containing in particular a lead compound and a peroxide as indispensable components. In order to prepare such a laminated product a layer of chlorosulfonated polyolefin composition containing a lead compound and a peroxide as indispensable components and a layer of fluorine-containing elastomer composition are laminated by molding and then brought to vulcanizing adhesion by subjecting to the conventional process of vulcanization such as steam vulcanization in autoclave, press vulcanization, etc.The laminated article obtained in accordance with this invention is adapted for use as hoses such as fuel oil hoses of automobiles, gas hoses, etc., sheets, or other industrial goods.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: June 20, 1989
    Assignee: Tosoh Corporation
    Inventors: Yukihiko Harada, Tatsushi Nakagawa, Junichiro Kanesaka, Yousuke Kaneshige
  • Patent number: 4840823
    Abstract: The present invention provides a plastic film packaging material comprising 100 weight parts of a polyethylene resin and 5 to 100 weight parts of an additive comprising a silica containing naturally porous material which is hydrophillic and which has a pore diameter of 15-200A, a specific surface area of 110 to 130 m.sup.2 /g, voids of 40 to 50% and a specific gravity of about 1.2.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: June 20, 1989
    Assignees: Kabushiki Kaisha Frontier, Nippon Unicar Kabushiki Kaisha, Nittetsu Kougyo Kabushiki Kaisha
    Inventors: Makoto Chigami, Sumio Ogihara, Hiroshi Hoaki, Tomonobu Kondo, Masao Okamura
  • Patent number: 4837956
    Abstract: A printed insert for food packages consisting of a film laminate including a central core layer of biaxially oriented polymeric film printed on one or both sides, then coated on both sides with a layer of adhesive over which is laminated an outer layer of transparent, grease-resistant, biaxially oriented polymeric film, the resultant laminate sealing the printing ink.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: June 13, 1989
    Assignee: Lustour Corporation
    Inventor: Dale E. Dolence
  • Patent number: 4839229
    Abstract: In a composite produced by hot pressing multilayer duroplastic prepregs of reinforcing materials impregnated with a duroplastic resin system, the improvement comprising at least one layer of an epoxy resin prepreg and at least one layer of a phenolic resin prepreg are pressed together, the composite having low fume density, increased non-flammability and good solvent and moisture resistance useful for production of structural components.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: June 13, 1989
    Assignee: Rutgerswerke AG
    Inventors: Karl Jellinek, Bert Meier, Jurgen Zehrfeld
  • Patent number: 4837086
    Abstract: An insulating substrate having a layer of an adhesive composition comprising (A) a modified phenolic resin and (B) acrylonitrile-butadiene rubber on at least one surface of a substrate is suitable for producing printed circuit boards having excellent solder heat resistance by an additive process.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: June 6, 1989
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Takahashi, Naohiro Morozumi, Shin Takanezawa, Kiyoshi Nakao
  • Patent number: 4835041
    Abstract: A biaxially stretched composite styrene resin sheet of a multilayer structure, comprising at least one layer of polystyrene and at least two layers of a mixture of polystyrene and styrene/butadiene block copolymer resin, wherein both outside layers are formed of said mixture, the thickness of each of the outside layers is 1 to 20% of the total thickness of the sheet, and the entire sheet is biaxially stretched.
    Type: Grant
    Filed: June 23, 1987
    Date of Patent: May 30, 1989
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Yukihide Tsukamoto, Yasuhiro Sato, Minoru Seino, Akio Toyoda
  • Patent number: 4835028
    Abstract: A paper product includes both means for preventing images from being copied from the paper product by use of a xerographic photocopier; and means for enabling detection of the paper product when the paper product is transported through an interrogation zone of an article surveillance system.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: May 30, 1989
    Assignee: Security Tag Systems, Inc.
    Inventors: Subrata Dey, William R. Menyhert
  • Patent number: 4835064
    Abstract: Card made from a combination of at least two layers of unplasticized PVC film that are bonded together by the application of pressure. At least one layer of a flexible plastic is incorporated in this combination. This layer of flexible plastic consists preferably of PVC modified with acrylate VC copolymers.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: May 30, 1989
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Heinz Vates, Rainer Edelberg