Including Boron Or Compound Thereof (not As Steel) Patents (Class 428/366)
  • Patent number: 5939160
    Abstract: Flexible PVC hose can be used with toilet systems in vehicles, such as boats, recreational vehicles, etc, or at pumpout stations. The hose includes about 40-55% by weight PVC resin, and at least 10% by weight of an EVA high molecular weight plasticizer. The hose also typically includes a low molecular weight plasticizer, stabilizer, lubricant, filler (such as 5-20% by weight dense filler like calcium carbonate), and pigment. The hose typically will not fail (that is will not transmit odor) for the life of the toilet system, or mechanical life of the hose.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: August 17, 1999
    Assignee: SeaLand Technology, Inc.
    Inventors: Sally A. Kline, William J. Friedman
  • Patent number: 5935664
    Abstract: Packaging material prepared from a paper or paperboard substrate which includes a layer of moisture barrier material is made resistant to loss of its moisture barrier characteristics when the packaging material is scored and bent during any converting operation by the addition of a layer of flexible primer material located between the paper or paperboard substrate and the moisture barrier layer.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: August 10, 1999
    Assignee: Westvaco Corporation
    Inventors: Robinson C. Claytor, Mohan Sasthav
  • Patent number: 5935666
    Abstract: A recipient is provided comprising an outer rigid housing and an inner flexible bag under butane gas pressure, in which the inner flexible bag is a material comprising a mixture of polyamide forming a matrix and of functionalized ethylene polymer comprising a functionalized ethylene/(meth)acrylate copolymer.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: August 10, 1999
    Assignee: Elf Atochem S.A.
    Inventors: Marie-Pierre Corbic Bellinger, Alain Bouilloux, Dominique Basset
  • Patent number: 5935879
    Abstract: The present invention is a non-woven fiber mat suitable for reinforcing resilient sheet floor coverings, such as vinyl floor coverings. The non-woven fiber mat is in the form of a sheet of reinforcement fibers which at least includes semi-coiled fibers and can also include coiled fiber, with one or more turns, and even some relatively straight or slightly curved fibers. It is desirable for most, if not all, of the reinforcement fibers to be made from glass. However, it may also be desirable for the reinforcement fibers to include glass fibers and synthetic fibers. It may even be possible for the reinforcement fibers to include only non-glass fibers. At least one polymeric binder is used for bonding together the reinforcement fibers so as to make the fiber mat a suitable substrate for reinforcing resilient sheet floor coverings, such as an interlayer for vinyl floor coverings.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: August 10, 1999
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Gregory S. Helwig, W. Scott Miller, Kimberley A. Householder
  • Patent number: 5932304
    Abstract: The present invention refers to a barrier layer composition which is to be applied to at least one surface of a polyolefin body, in particular a polyolefin hollow body, wherein the composition contains: a) 40-70% by weight of one or more epoxide-containing metal oxide sols; b) 25-55% by weight of a binding agent polymer consisting of a terpolymer of maleic acid-maleic anhydride-vinyl monomers and/or a copolymer of maleic acid-vinyl monomers having a composition by mole of 50-75% of a vinyl monomer, 5-50% of maleic acid, and 0-20% of maleic anhydride; and c) 0.1-5% by weight of a catalyst on the basis of one or more tertiary amines.The hollow bodies coated with the barrier layer can be used particularly as storage containers for organic substances, in particular for organic solvents, fuels, mineral oils, pesticides, and other substances, for example liquids, the diffusion of which is to be inhibited or at least essentially reduced.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: August 3, 1999
    Assignees: Plastic Omnium GmbH, FEW Forschungs- und Entwicklungsgesellschaft Wolfen mbH
    Inventors: Werner Probst, Peter Knobloch, Christoph Roth, Hans-Jurgen Muller, Frank Apsel
  • Patent number: 5932307
    Abstract: A polymeric tubing having an initial diameter and suitable for connecting to rigid housings including a sidewall defining a fluid pathway and having a longitudinal axis, the sidewall of a polymeric material in an amount by weight within the range of 99.999%-90.0%, and an additive in an amount by weight within the range of 0.001%-10%, and wherein the tubing has been oriented along its longitudinal axis to decrease its diameter to define a oriented diameter.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: August 3, 1999
    Assignee: Baxter International Inc.
    Inventors: Patrick T. Ryan, Chuan Qin, Donna L. Rostron, Birendra K. Lal, Yuanpang S. Ding, Susan R. Mizener, Lecon Woo, Michael T. K. Ling, Martin F. Miller
  • Patent number: 5932305
    Abstract: A sealed container obtained by forming into a container a sheet comprising (A) a polymer of three-component system of bisphenol A, diphenyl carbonate and 1,10-decanedicarboxylic acid, (B) polypropylene and (C) ethylene-vinyl alcohol copolymer or polyamide obtained by the polycondensation reaction of m-xylylenediamine with adipic acid so that these (A), (B) and (C) are in order of (A)-(B)-(C)-(B) with (A) as an innermost layer of the container and sealing the container by a lid having gas barrier properties. This container is excellent in preservability and sealability and does not spoil the flavor of various foods which are contained therein.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: August 3, 1999
    Assignee: Sumitomo Bakelite Company, Limited
    Inventor: Seigo Akazawa
  • Patent number: 5928745
    Abstract: The invention can comprise a thermoplastic fuel tank or container having a vapor barrier comprising a cyclodextrin composition. A modified cyclodextrin that is chemically modified with substituents that increase the compatibility of the cyclodextrin material in the fuel container material can be used. The improved fuel container obtains substantial barrier properties from the interaction between the cyclodextrin material in the fuel container materials with the fuel vapor permeant materials. The cyclodextrin in the fuel tank walls complexes or entraps fuel vapor that permeates through the materials making up the tank and are held within the tank material preventing the permeant fuel vapor from passing through the tank into the environment. The fuel vapor permeant can comprise a variety of well known materials including aliphatic and aromatic hydrocarbons, oxygenates such as tertiary butyl methyl ether, ethanol, methanol, and other combustible liquid fuel materials.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: July 27, 1999
    Assignee: Cellresin Technologies, LLC
    Inventors: Willard E. Wood, Neil J. Beaverson
  • Patent number: 5928741
    Abstract: Compositions, methods, and apparatus for manufacturing sheets having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form a sheet which has the desired performance criteria. The inorganically filled mixtures are formed into sheets by first extruding the mixtures and the passing the extruded materials between a set of rollers. The rolled sheets are dried in an accelerated manner to form a substantially hardened sheet, such as by heated rollers and/or a drying chamber. The inorganically filled sheets may have properties substantially similar to sheets presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. Such sheets can be rolled, pressed, scored, perforated, folded, and glued.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 27, 1999
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5928744
    Abstract: According to the invention, strong adhesion of the layers to each other and simple formation of a strong and leakproof connection with bags or connectors made from polypropylene or polycarbonate during steam sterilisation is achieved by the first plastic material containing at least one polymer which is dimensionally stable at temperatures of .gtoreq.121.degree. C., while the second plastic material contains at least one polymer which is no longer dimensionally stable at temperatures of .gtoreq.121.degree. C. A layer C) (2) is optionally present, the plastic material of which contains at least one polymer which is dimensionally stable at temperatures of .gtoreq.121.degree. C. The invention can be used for medical purposes, in particular as a fluid line in dialysis, infusion or artificial feeding, primarily in connection with connectors or medical bags.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 27, 1999
    Assignee: Fresenius AG
    Inventors: Klaus Heilmann, Thomas Nicola
  • Patent number: 5922425
    Abstract: A multi-layer composition comprises (a) a first layer comprising semi-crystalline copolymer comprising interpolymerized units derived from tetrafluoroethylene and allylic hydrogen-containing olefin monomer (e.g., propylene), wherein less than 10% of the total heat of fusion is attributable to a secondary melt-transition above 300.degree. C. as shown by the heating curve from Differential Scanning Calorimetry; and (b) a second layer comprising melt-processable polymer (e.g., polyethylene) which is both substantially thermally stable and capable of being melt-processed at temperatures below the decomposition temperature of the semi-crystalline copolymer. The multi-layer composition can be used to form shaped articles (e.g., films, sheets, tubing, coated wires, cable jacketing, or bottles) for use in a variety of applications.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: July 13, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Michael P. Greuel
  • Patent number: 5922460
    Abstract: A metal matrix composite material made of a fiber reinforcement having a coating of gadolinium and gadolinium boride, preferably as discrete layers, each having a thickness of 1 to 6 microns. This composite is made by coating reinforcing fibers with gadolinium using a deposition technique, further coating the fibers with gadolinium boride by a deposition technique and then consolidating the coated fibers into a metal matrix to form the metal matrix composite.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: July 13, 1999
    Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain & Northern Ireland of Defence Evaluation and Research Agency
    Inventors: Charles M. Ward-Close, Francis H. Froes, Deepak Upadhyaya, Panos Tsakiropoulos
  • Patent number: 5919547
    Abstract: A laminate comprising two or more films, at least one of the films being a coextruded, multilayer film, wherein the laminate delaminates within the coextruded, multilayer film when the laminate is subjected to a peel force ranging from 0.001 to 2.5 pounds per inch. The laminate advantageously provides the lid for a package and delaminates into a substantially gas-impermeable portion and a gas-permeable portion, with the gas-permeable portion being bonded directly to a product support member of the package. In this manner, the gas-impermeable portion may be peelably removed from the package to allow atmospheric oxygen to enter the interior of the package.
    Type: Grant
    Filed: December 11, 1996
    Date of Patent: July 6, 1999
    Assignee: Cryovac, Inc.
    Inventors: Patrick N. Kocher, Kimberly Ann Mudar, Walter Berndt Mueller, H. Walker Stockley
  • Patent number: 5916685
    Abstract: A transparent multilayer structure is disclosed such as a flexible self-supporting container for a flowable food product such as fruit juice. The transparent multilayer structure possesses superior barrier properties to oxygen, water vapor and aromatic gases. The multilayer structure may include an exterior layer having a metal oxide deposition laminated to an interior layer through use of an adhesive. In one embodiment, the metal oxide is SiOx where x has a value between 1.5 and 2.2 thereby allowing for a transparent multilayer structure. The metal oxide may be deposited on the exterior layer through a number of various methods. An exemplary method is plasma-enhanced chemical vapor deposition. The exterior layer may be composed of a polymer material integrated with a clay mineral between 0.1% and 10% weight of the polymer material. The polymer material may be selected from the group consisting of polyamide, polyethylene terephthalate, copolymers of polyethylene terephthalate and mixtures thereof.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: June 29, 1999
    Assignee: Tetra Laval Holdings & Finance, SA
    Inventor: Peter Frisk
  • Patent number: 5916615
    Abstract: A case-ready package and method of reducing discoloration in meat or poultry products enclosed within such packages when the packages are disposed in a stack of two or more packages. A non-textured and substantially smooth gas-permeable substrate is attached to the lower surface of the packages to allow air to flow into an underlying package in a stack of packages, thereby preventing or minimizing premature discoloration of packaged fresh meat or poultry product due to insufficient oxygen flow into such packages when disposed in a stack. In addition, the substrate may contain printed product indicia either directly or in the form of a label attached thereto.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: June 29, 1999
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Sean A. Brady, Robin H. Logan, D. Chris Noel, H. Walker Stockley, III
  • Patent number: 5911665
    Abstract: A polymeric film and method for overcoming the problem of "pinholes" created in filled pouches by the harmonic motion occurring during transport of the filled pouches. The polymeric film composed of from about 5% to about 95% by weight of a first polymeric material having an elongation at break of more than about 500% in the machine direction and more than about 600% in the transverse direction, and from 5% by weight to about 95% by weight of a second polymeric material having a density of at least about 0.915 g/cm.sup.3 and selected from the group consisting of polyethylene and ethylene copolymers. The first polymeric material includes a very low density linear ethylene interpolymerized from ethylene and at least one alpha-olefin in the range of C.sub.3 -C.sub.10. The film may be fabricated into pouches and the pouches stacked for transportation.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: June 15, 1999
    Assignee: Tetra Laval Holdings & Finance SA
    Inventors: Ramin Heydarpour, Sriram Venkatasanthanam, David Carl Schroeder
  • Patent number: 5911950
    Abstract: A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: June 15, 1999
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Xiaolan Chen, Paul Taylor Jacobs, Szu-Min Lin, Robert M. Spencer, Harold R. Williams
  • Patent number: 5908676
    Abstract: An oxygen absorbing resin in which a deoxidizing composition is dispersed in a thermo-plastic resin mixture comprising (A) a thermoplastic elastomer and/or an ethylene propylene copolymer and (B) a thermo-plastic resin other than the above-mentioned (A), and having a flexural modulus of 600 MPa or less and an oxygen permeability of 130 cc.mm/m.sup.2.atm.day (23.degree. C., 50% RH) or more. The oxygen absorbing resin has an oxygen absorbing performance equal to that of a conventional deoxidizing agent in a small bag. A deoxidizing multi-layer structure which comprises a layer (I) comprising a thermoplastic resin layer having an oxygen permeability of 800 cc/m.sup.2.atm.day (23.degree. C., 50% RH) or more, a layer (II) comprising the oxygen absorbing resin, and a layer (III) having gas barrier properties. In addition, the deoxidizing multi-layer structure has a function of positively and efficiently absorbing oxygen.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: June 1, 1999
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Ryoji Otaki, Takashi Kashiba, Yoshiki Ito
  • Patent number: 5904974
    Abstract: A PVA-base copolymer is obtained by subjecting a lactone, whose ring is formed of 3 to 10 carbon atoms, to ring-opening polymerization in the presence of polyvinyl alcohol (PVA). The copolymer comprises a PVA chain and an aliphatic polyester grafted as a ring-opened polymer of the lactone on the PVA chain. Further, the copolymer has a PVA content of 2 to 98 wt. %, a polyester content of 98 to 2 wt. %, and a number average molecular weight of 10,000 to 500,000.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: May 18, 1999
    Assignees: Dainichiseika Color & Chemicals Mfg.Co., Ltd, Ukima Colour & Chemicals Mfg. Co., Ltd
    Inventors: Kazuyuki Hanada, Katsumi Kuriyama
  • Patent number: 5904897
    Abstract: A system to deliver gas/vapor from solid materials. Specifically, the delivery system for the use of gas or vapor released from a solid material, such as a non-aqueous/solid hydrogen peroxide complex. The system is comprised of a delivery system that is configured to receive a plurality of disks containing the solid material and provide these disks into an injector. The injector heats the disks to produce a gas or vapor that is then provided into a chamber. The sterilization process can be done by gas or vapor alone, or in combination with plasma or ultra violet radiation. In particular, a control system automatically induces the delivery system to provide the injector with a disk and then remove the disk once the injection sequence is complete.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: May 18, 1999
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Richard Jed Kendall, Xiaolan Chen, Michael Hahs, Paul Taylor Jacobs, Szu-Min Lin
  • Patent number: 5897960
    Abstract: A laminate having a laminated structure of at least two layers includes a gas barrier film (A) formed from a mixture containing at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products thereof and a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C. and 80% relative humidity, and a layer (B) formed from a thermoplastic resin. The film (A) and the layer (B) are laminated contiguously to each other. A process for the production of a laminate having a laminated structure of at least two layers comprises a step of forming a gas barrier film (A) having an oxygen permeability constant of 5.00.times.10.sup.-3 ml(STP).multidot.cm/m.sup.2 .multidot.h.multidot.atm{Pa} or smaller as measured under conditions of 30.degree. C.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: April 27, 1999
    Assignee: Kureha Kagaku Kogyo K.K.
    Inventors: Hiroyuki Oba, Hideaki Tanaka, Tomoaki Sato, Tomohisa Hasegawa
  • Patent number: 5895716
    Abstract: This invention relates to carbon--carbon (C--C) composite comprising carbon fibers or carbon fabric, carbon char on the carbon fiber or fabric and pyrolytic carbon on the carbon char, wherein the density of the carbon composite is at least 1.3 g/cc. The invention also relates to wet friction elements and power transmission devises containing the same. The invention also relates to methods of preparing the carbon--carbon (C--C) composites. These C--C composites and wet friction elements and power transmission devises made therefrom have improved friction properties desired by wet brakes and clutches. These C--C composites provide improvements in cost, and when run against metals, such as steel or iron, improvements in wear and frictional behavior compared to known C--C composites for wet friction applications. In one aspect, the carbon--carbon does not require bonding to a metal backing or core material.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: April 20, 1999
    Assignee: The B.F. Goodrich Company
    Inventors: Robert A. Fiala, William L. Tarasen
  • Patent number: 5894040
    Abstract: Pulp prepared from post-consumer used or recycled paper may be employed in the preparation of substrates which are blended with a vapor phase corrosion inhibitor for preparation and fabrication of packaging enclosures or containers. The present invention permits substrates prepared in this fashion to be employed in such applications for which they are rendered highly suitable. Because of the unknown history of the post-consumer recycled materials forming the pulp, the utility of enclosures and/or packages prepared from such pulp is expanded. Vapor phase corrosion inhibitors useful in the present invention preferably include quantities of amine salts, alkali metal molybdates, including ammonium molybdates, or mixtures of molybdates with a second component such as benzotriazole.
    Type: Grant
    Filed: May 30, 1996
    Date of Patent: April 13, 1999
    Assignee: Cortec Corporation
    Inventors: Joseph M. Foley, Barry Rudman
  • Patent number: 5885673
    Abstract: Packaging material 10 for a sealable, easy opening, tear resistant pouch-like package 100 comprises a first layer 12 including an oriented polymeric material having a front side capable of receiving surface printed information. A second layer 16 bonded to the first layer 12 includes a light barrier and moisture impervious material. Bonded to the second layer is a third layer 18 comprising a a coextruded film comprising carbon black-loaded linear low density polyethylene-EVA-polybutylene or carbon black loaded linear low density polyethylene film with an EVA gel lacquer coating. The material 10 overwraps the photographic product in a pouch-like structure comprising a flap 120, having along its length, a lengthwise seal 123 projecting outwardly of a second side 114. Second side 114 along with a first side 116 of package 100, extend between opposed hermetically sealed rearward and forward end portions 116,118.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: March 23, 1999
    Assignee: Eastman Kodak Company
    Inventors: Susan L. Light, Michael Long, Ronald W. Horiszny, Peter J. Harissis, Donald L. Woodrich
  • Patent number: 5879803
    Abstract: There is provided Ceramic matrix composites comprising fibers, BN coating applied to the fibers, the BN coating being composed of BN and one of Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, ZrO.sub.2 and lanthanoid family oxide or combinations thereof, and matrices interposed between the fibers. There is also provided Ceramic matrix composites comprising, fibers, BN coating applied to the fibers, the BN coating is composed of BN and coated with one of Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, ZrO.sub.2 and lanthanoid family oxide or combinations thereof, and matrices interposed between the fibers. The ceramic matrix composites in accordance with the present invention is capable of being used at 1000 degrees centigrade or greater in air.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: March 9, 1999
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Shoju Masaki, Takeshi Nakamura, Kaoru Miyahara, Hiroshige Murata
  • Patent number: 5866649
    Abstract: Blends of polymers, such as aromatic condensation polymers including formable polyesters and polycarbonates with an oxygen barrier material such as aromatic or aliphatic nylon, an amorphous nylon or EVOH, which have been oriented and which contain a transition metal catalyst, exhibit the improved barrier properties and oxygen absorption properties of the present invention.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 2, 1999
    Assignee: American National Can Company
    Inventors: Kuo-Zong Hong, Yong Joo Kim, Stephen W. Cornell
  • Patent number: 5866229
    Abstract: A textile composite material is used as tuft backing for tufted carpets, the composite material having at least one nonwoven fabric on which exclusively parallel-running, straight, load-absorbing, plastic, continuous filaments are rascheled, and a thin binding yarn serving as a knitting chain fixing the continuous filaments in position.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: February 2, 1999
    Assignee: Firma Carl Freudenburg
    Inventors: Rudolf Gartner, Bernhard Klein, Ararad Emirze, Christoph Josefiak
  • Patent number: 5858490
    Abstract: Packaging films for press-through packaging comprise a polyethylene-2,6-naphthalate film having an intrinsic viscosity .eta. of 0.31 to 0.6 wherein the film is: (1) stretched in mutually perpendicular directions each with draw ratios of 1 to 3 times; or (2) stretched in the longitudinal direction at draw ratios of 3 to 6 times and in the transverse direction at draw ratios of 1 to 1.8 times. The films have a thickness of 5-150 .mu.m and may be incorporated into multi-layer cover films comprising the polyethylene-2,6-naphthalate film, a barrier layer, a reinforcing layer, and a sealing or adhesive layer.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: January 12, 1999
    Assignees: NKK Corporation, DAI Nippon Printing Co., Ltd.
    Inventors: Shinichiro Mori, Katsuhiko Sasada, Kayo Hasegawa, Yasuhiro Harada, Chikao Kumaki, Masahisa Yamaguchi, Yasuki Suzuura, Rikiya Yamashita, Toshiyuki Suzuki, Isao Inoue
  • Patent number: 5858492
    Abstract: A composite material having improved thermal and mechanical properties is provided by a thermoplastic multilayer composite consisting at least of(I) a layer of a polyvinylidene fluoride moulding composition,(II) a layer directly adjacent to the layer I, comprising a moulding composition based on a mixture of(a) from 40 to 90% by weight of a polyamide, and(b) from 10 to 60% by weight of a polyglutarimide,(III) a layer directly adjacent to the layer II comprising a suitable coupling agent, and(IV) a layer directly adjacent to the layer III, comprising a polyolefin moulding composition, with adjacent layers being firmly bonded to one another. By means of the invention it is possible to obtain composite materials having the desired improved property profile.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: January 12, 1999
    Assignee: Huels Aktiengesellschaft
    Inventors: Stefan Roeber, Hans Ries
  • Patent number: 5855976
    Abstract: A laminate of vulcanizable rubber composition layers, which comprises (i) a vulcanizable fluororubber composition layer comprising a fluororubber and a metal oxide and (ii) a vulcanizable nitrile rubber composition layer consisting essentially of a nitrile rubber, an organic phosphonium salt of the following formula (1), an organic peroxide crosslinking system, and an organic basic vulcanization accelerator: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrocarbyl, and no more than three thereof may be amino or fluoroalkyl; and R.sub.5 is hydrogen or alkyl. A vulcanized laminate made of the vulcanizable rubber composition layers is useful for a fuel hose or a diaphragm.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: January 5, 1999
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Motofumi Oyama, Kazuyoshi Nakajima
  • Patent number: 5855977
    Abstract: A multi-layer article comprises a substantially non-fluorinated layer, and a fluorinated layer of fluoropolymer comprising interpolymerized monomeric units derived from one or more of hexafluoropropylene and tetrafluoroethylene monomers, one or more non-fluorinated olefinically unsaturated monomer, and substantially no vinylidene fluoride monomer. The multi-layer article further comprises an aliphatic di-, or polyamine which provides increased adhesion between the layers as compared to a multi-layer article not containing the aliphatic di-, or polyamine. The multi-layer article can be prepared by mixing the aliphatic di-, or polyamine into the substantially non-fluorinated polymeric material, or by applying the aliphatic di-, or polyamine to a surface of one or more of the substantially non-fluorinated polymeric material or the fluoropolymer, and thereafter preparing a multi-layer article.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: January 5, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Tatsuo Fukushi, Keizo Yamanaka, Paul F. Tuckner
  • Patent number: 5853860
    Abstract: Paperboard lids for containers comprising of a paperboard substrate, a coating of particulate minerals, a printed layer, and a radiation cured overprint varnish wherein the overprint varnish is mass stable and heat resistant above 325.degree. F. and does not distort or stick during platen heat sealing.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: December 29, 1998
    Assignee: Westvaco Corporation
    Inventor: Barry Gene Calvert
  • Patent number: 5853833
    Abstract: A sanitary container is composed of a base container made of a cyclic olefin polymer or its hydrogenation product and an inorganic coating formed on a surface of said base container. The sanitary container can be produced by forming the inorganic coating on the surface of the base container by plasma CVD.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: December 29, 1998
    Assignee: Daikyo Seiko, Ltd.
    Inventors: Morihiro Sudo, Yasushi Kawachi
  • Patent number: 5851611
    Abstract: One aspect of the present invention reveals a multi-layered storage container that changes color in response to acid gases. The storage container is comprised of at least one layer of a plastic and at least one layer of a gas-barrier polymer. Furthermore, the multi-layered storage container is provided with a color-changing indicator to show the presence of acidic gases. The other aspect of the present invention reveals a diaper which, as the result of chemical and/or electrical processes, can indicate when the diaper is wet.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 22, 1998
    Assignee: Alvin Guttag
    Inventor: Alvin Guttag
  • Patent number: 5849380
    Abstract: A sheet-like or a film-like deoxidizing multi-layer material is herein disclosed which comprises an oxygen absorbing layer as a middle layer comprising an oxygen absorbing resin composition in which a deoxidizer composition is blended, a gas barrier layer as an outer layer comprising a gas barrier resin, and an oxygen permeating layer as an inner layer comprising an oxygen permeating resin, the gas barrier resin comprising a polyamide or a polyamide copolymer which contains 90 mol % or more of an amide structure unit produced by the polycondensation reaction of metaxylylenediamine with adipic acid.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: December 15, 1998
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takashi Kashiba, Ryoji Otaki, Yoshiki Ito
  • Patent number: 5849374
    Abstract: A compostable multilayer structure in the form of a film, sheet, laminate, and the like, which comprises a core layer having a first surface and a second surface, a first blocking reducing layer covering the first surface of the core layer, and a second blocking reducing layer covering the second surface of the core layer. The core layer contains a lactic acid residue-containing polymer and has a glass transition temperature (T.sub.g) below about 20.degree. C. The first and second blocking reducing layers include a polymer composition of a hydrolyzable polymer and have a T.sub.g above about 50.degree. C. The multilayer structure can be used for preparing bags and wrappers.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: December 15, 1998
    Assignee: Cargill, Incorporated
    Inventors: Patrick R. Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, Ali Zakareya El-Afandi, James Nangeroni, Nancy Uzelac Buehler, Mark Hartmann, Jed Richard Randall, Andrea Lee Brosch
  • Patent number: 5849224
    Abstract: A multilayered container and a process for forming the same are disclosed. The container includes a support wall formed from a plastic having an undesirable substance therein and polymerized to a level less than that necessary to prevent the undesirable substance from migrating from the plastic into the contents when the contents are in contact with the support wall. A protective wall is provided adjacent the support wall and adapted to be positioned between the support wall and the contents. The protective wall is formed from a material which limits the migration of undesirable substance from the support wall into the contents.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: December 15, 1998
    Assignee: The Elizabeth and Sandor Valyi Foundation, Inc.
    Inventor: Emery I. Valyi
  • Patent number: 5840385
    Abstract: The present invention relates to a cover (4) of a product package to be heat-sealed on the mouth of a product package and extractable therefrom when opening, and a method for manufacturing same. The cover is appropriate particularly for dosage packages of foodstuffs, such as milk, yogurt, juices and fruit syrups, desserts, etc., or for drug packages. The cover is made of paper (5) which is provided with polymer coating layers (6) on the undersurface, comprising a formally polymer binding agent layer and a heat-sealable polymer layer of an oxygen-tight, non-puncturable support layer, enabling extraction of the cover when opening the package. The essential feature in the invention lies therein that the support layer includes, as described above, a polymer component of high degree of crystallization and amorphous polymer component, wherewith the curling of the cover is prevented. Production of the cover (4) is accomplished with simultaneous extrusion of the polymer layers (6).
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: November 24, 1998
    Assignee: Enso-Gutzeit Oy
    Inventors: Tapani Penttinen, Riitta Koskiniemi, Matti Salste
  • Patent number: 5840825
    Abstract: Disclosed is a gas barrier coating and multilayer packaging materials made therefrom. The gas barrier coating includes a polyamine (A), a polyepoxide (B), and a filler (C). Polyamine (A) includes at least one of the following: (a) an initial polyamine, and (b) an ungelled polyamine adduct which is the reaction product of the initial polyamine and epichlorohydrin and/or a polyepoxide having a plurality of glycidyl groups linked to an aromatic member. Polyepoxide (B) includes a polyepoxide having a plurality of glycidyl groups linked to an aromatic member. Filler (C) includes a platelet-type filler with the following particle size distribution: (a) a number mean particle diameter in the range from about 5.5 to about 15 microns, and (b) a volume mean particle diameter in the range from about 8 to about 25 microns. In addition, the present invention provides glossy, multilayer packaging materials containing an oxygen barrier material layer having an oxygen permeability constant not more than 0.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: November 24, 1998
    Assignee: PPG Incustries, Inc.
    Inventors: Leland H. Carlblom, Jerome A. Seiner
  • Patent number: 5837364
    Abstract: Disclosed are novel ceramic matrix composites in which coated refractory fibers are imbedded in a ceramic matrix derived from a modified hydrogen silsesquioxane resin.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: November 17, 1998
    Assignee: Dow Corning Corporation
    Inventor: Gregg Alan Zank
  • Patent number: 5837335
    Abstract: A heat-shrinkable, biaxially-oriented, multilayer film has a first layer comprising an ethylene/alpha-olefin copolymer having a major DSC peak of less than 105.degree. C. The multilayer film has a free shrink, at 185.degree. F., of at least 80 percent, and all layers of the multilayer film are shrink-compatible with respect to one another. Preferably, the multilayer film has a second layer which is an oxygen barrier layer, and preferably both of the outer film layers are grease-resistant. Furthermore, the invention includes a bag comprising the multilayer film, as well as a packaged product having a package comprising the multilayer film.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: November 17, 1998
    Assignee: Cryovac, Inc.
    Inventor: Robert Babrowicz
  • Patent number: 5837339
    Abstract: Carbonated beverages can have a substantially reduced concentration of water soluble materials derived from biaxially oriented thermoformed beverage containers. Such containers can comprise a permeant barrier and an active trap for water soluble materials that can be removed from the thermoplastic by extraction into the carbonated beverage. The improved container material comprises a blow molded thermoplastic polyester web comprising a compatible modified cyclodextrin material having pendent moieties or substituents that render the cyclodextrin material compatible with the container thermoplastic. The cyclodextrin material, after it is added to the polymer material, acts as a barrier and to trap extractable materials as they permeate through the thermoplastic polyester. The cyclodextrin molecule has a large center cavity having properties that increase the likelihood that organic molecules will be absorbed and trapped in the center pore.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: November 17, 1998
    Assignee: Cellresin Technologies, LLC
    Inventors: Willard E. Wood, Neil J. Beaverson
  • Patent number: 5834077
    Abstract: A heat-shrinkable, biaxially-oriented, multilayer film has a first layer comprising an ethylene/alpha-olefin copolymer having a major DSC peak of less than 105.degree. C. The multilayer film has a free shrink, at 185.degree. F., of at least 80 percent, and all layers of the multilayer film are shrink-compatible with respect to one another. Preferably, the multilayer film has a second layer which is an oxygen barrier layer, and preferably both of the outer film layers are grease-resistant. Furthermore, the invention includes a bag comprising the multilayer film, as well as a packaged product having a package comprising the multilayer film.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: November 10, 1998
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Robert Babrowicz
  • Patent number: 5833070
    Abstract: A stretched PCTFE (polychlorotrifluoroethylene) film is provided with a good moisture-proofness (low moisture permeability) even at a relatively small thickness and at a small crystallinity The film is characterized by a crystallinity A (%) of 15-75% and a moisture permeability B (mg/m.sup.2.day) at a film thickness of 20 .mu.m, satisfying a relationship of B/(100-A).ltoreq.3.0. The film may suitably be produced through a process characterized by a sequence of a relatively low-temperature melt-extrusion and a low temperature stretching. The film is suitably used for constituting moisture-proof packaged products, such as an EL device or a packaged drug product.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: November 10, 1998
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshiya Mizuno, Yoshikichi Teramoto, Yasuhiro Tada
  • Patent number: 5834112
    Abstract: An ion conductive film and a precursor thereof which comprises a film composed of an aromatic polyamide, electrolyte and solvent in which a content of the aromatic polyamide is between 20 and 70% by weight. The film is easy to handle due to heat resistance, resistance to chemicals and mechanical properties. Little deterioration of the properties, or change in the structure of the film is caused by aging and exposure to heat. The film is especially suited for various electrochemical usages including battery separator.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: November 10, 1998
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Shigemitsu Muraoka, Masami Hamada
  • Patent number: 5830548
    Abstract: Compositions and methods for manufacturing composite laminate structures incorporating sheets having a moldable matrix are disclosed. Suitable compositions are prepared by mixing together a water dispersable organic binder, water, and appropriate additives (such as aggregates and fibers) which impart predetermined properties so that a sheet formed therefrom has the desired performance criteria. The compositions are formed into sheets by first extruding them into a sheet and then calendaring the sheet using a set of rollers. The calendered sheets are dried in an accelerated manner to form a substantially hardened sheet. The drying process is performed by heated rollers and/or a drying chamber. The inorganically filled sheets so formed may have properties substantially similar to sheets made from presently used materials like paper, cardboard, polystyrene, or plastic. Such sheets can be rolled, pressed, scored, perforated, folded, and glued before or after being incorporated into composite laminate structures.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: November 3, 1998
    Assignee: E. Khashoggi Industries, LLC
    Inventors: Per Just Andersen, Simon K. Hodson
  • Patent number: 5827586
    Abstract: A packaging container for chemicals such as pesticides and the like and a laminated film for forming said container, wherein the inner layer of the laminated film is constituted of an inner bag made of a water-soluble polymer film and the outer layer of the laminated film is constituted of an outer bag made of a water-insoluble film, and at least in the seal part of the container, films constituting inner layer are bonded to each other and additionally the film constituting inner layer and the film constituting outer layer are bonded to each other, and the film constituting inner layer and the film constituting outer layer are releasable from each other.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: October 27, 1998
    Assignee: Ciba-Geigy Japan Limited
    Inventors: Ryo Yamashita, Kenichi Kitagaki, Takahiro Matsubara, Mikio Takenaka
  • Patent number: 5827587
    Abstract: A multi-layer composition comprising of a fluoropolymer layer, a hydrocarbon polymer layer, and an aliphatic di- or polyamine having a molecular weight of less than 1,000, wherein the fluoropolymer comprises vinylidene fluoride units; the hydrocarbon polymer is a polyamide, polyimide, or a functionalized polyolefin; and wherein substantially all of the di- or polyamine is located between the fluoropolymer and the hydrocarbon polymer layers, the amount of amine being sufficient to increase the adhesion of the two layers.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: October 27, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Tatsuo Fukushi
  • Patent number: 5820780
    Abstract: The present invention provides a liquid crystal polyester resin composition, which is manufactured at low cost and has favorable gas barrier properties and improved impact resistance, vibration-damping properties, thin-wall properties (mechanical properties of thin-wall molded articles), and film-forming properties, while maintaining excellent heat resistance and mechanical properties of a liquid crystal polyester. A liquid crystal polyester resin composition of the invention includes 55.0 through 99.9 percent by weight of a liquid crystal polyester as a component (A) and 0.1 through 45.0 percent by weight of an epoxy group-containing ethylene copolymer as a component (B), wherein the component (B) includes: (a) 50 through 96.5 percent by weight of an ethylene unit; (b) 0.5 through 30 percent by weight of an unsaturated glycidyl carboxylate unit or an unsaturated glycidyl ether unit; and (c) 3 through 40 percent by weight of an ethylenically unsaturated ester compound unit.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: October 13, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Motonubu Furuta, Takanari Yamaguchi
  • Patent number: 5820956
    Abstract: A multi-layer structural body for absorbing oxygen and preserving packaged goods adversely affected by oxygen, such as food, includes a first layer resistant to gas permeation; a second layer laminated on the first layer and having a deoxidizing property; and a third layer laminated on the second layer and permeable to air, wherein the first layer has an oxygen permeability of less than 100 cc/m.sup.2 .multidot.day.multidot.atm (23.degree. C., 100% RH); the second layer includes a resin having an oxygen permeability coefficient of at least 200 cc.multidot.0.1 mm/m.sup.2 .multidot.day.multidot.atm (23.degree. C., 100% RH), a granular oxygen absorber composition dispersed in the resin and including a deoxidation material undergoing a deoxidation reaction when exposed to moisture, and a moisture absorber dispersed in the resin, wherein the third layer has an oxygen permeability of at least 100 cc/m.sup.2 .multidot.day.multidot.atm (23.degree. C.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: October 13, 1998
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Hidetoshi Hatakeyama, Yoshiki Ito