Having Three Or More Layers Of At Least Two Different Compositions Patents (Class 264/173.11)
  • Publication number: 20040023584
    Abstract: A nonwoven fabric comprises a first layer formed of staple fibers having a smooth outer surface, a second layer formed of staple fibers having an outer surface with a roughened texture and a third, spunbond layer sandwiched between the first and second layers. A binder material is applied to the second layer which substantially covers its textured surface and is effective to resist deformation under the application of pressure even in the presence of liquid.
    Type: Application
    Filed: August 5, 2002
    Publication date: February 5, 2004
    Applicant: Green Bay Nonwovens, Inc.
    Inventor: R. John Michaud
  • Publication number: 20040023580
    Abstract: The invention relates to a fabric having both stab resistant and anti-ballistic properties. The fabric is made of yarn of a weight greater than about 500 dtex, and the fabric has a minimum shrinkage factor of at least about 1% achieved through a densification treatment. The invention further relates to a method of producing a such a fabric having the steps of agitating a fabric made of a yarn of a weight greater than about 500 dtex, substantially removing a spin finish from the fabric before, during or after the agitating step, and drying the fabric.
    Type: Application
    Filed: February 4, 2003
    Publication date: February 5, 2004
    Applicant: TEIJIN TWARON GMBH
    Inventors: David R. Hand, Rudiger Hartert, Christian Bottger
  • Patent number: 6677049
    Abstract: The invention relates to a multi-layered biaxially-oriented film, mainly made of a crystallizeable thermoplastic polyester and economically produceable with a high surface quality, i.e. without pinning bubbles and without electric arcing and film breaks, at production speeds of 340 m/min or higher. According to the invention the multi-layered polyester film has an average specific electrical melt resistance over its total thickness which lies within a range from 1.5×107 to 30×107 &OHgr;×cm. The invention also relates to a method of production of the film.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: January 13, 2004
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Harald Mueller, Ursula Murschall
  • Patent number: 6673425
    Abstract: A multilayer optical body having improved dimensional stability is disclosed. The optical body includes an optical film, such as an oriented multilayer optical film, and a dimensionally stable layer, such as a transparent polycarbonate layer. In addition, in specific implementations, the invention includes an intermediate layer between the optical film and the dimensionally stable layer. Methods of making the optical body are also disclosed.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: January 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, Andrew J. Ouderkirk
  • Patent number: 6673423
    Abstract: The invention relates to an information-carrying molded part containing one or more plastic layers, at least one of which bears an informative representation. A ‘molded part’ is understood to be in particular a card such as ‘smart cards’, key cards, identification cards, telephone cards, credit cards or bank cards. According to the invention at least one of the plastic layers herein is made from a block-copolyester consisting of soft blocks of a flexible polymer and hard polyester blocks of repeating units of at least one alkylene glycol and at least one aromatic dicarboxylic acid or an ester thereof. The block-copolyether layer can very well be provided with an informative representation with the aid of laser writing and for example sublimation printing. The information-carrying molded part according to the invention also has a good stiffness combined with a good flexibility and a good resistance to breaking and tearing, good adhesion to for example polycarbonate.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: January 6, 2004
    Assignee: DSM N.V.
    Inventors: Saskia I. Kranenburg-Van Dijk, Franciscus W.M. Gelissen, Markus J.H. Bulters, Christiaan Schröder
  • Publication number: 20030219557
    Abstract: This invention concerns a multilayer film useful as release sheet for sheet molding compounds, comprising a first skin layer, a second skin layer, a barrier layer for monomeric resins wherein the barrier layer is between the first and second skin layers and the first and second skin layers comprise a mixture of polyolefin and adhesive resin. This invention also pertains to the multilayer films method of production, as well as an SMC sheet employing the multilayer film.
    Type: Application
    Filed: February 19, 2003
    Publication date: November 27, 2003
    Applicant: Pliant Corporation
    Inventors: Daniel G. Denehy, Eric D. Tuttle
  • Publication number: 20030215658
    Abstract: A method of film fabrication is taught that uses a coating and drying apparatus to fabricate resin films suitable for optical applications. In particular, polyvinyl alcohol films are prepared by simultaneous application of multiple liquid layers to a moving carrier substrate. After solvent removal, the polyvinyl alcohol films are peeled from the sacrificial carrier substrate. Polyvinyl alcohol films prepared by the current invention exhibit good dimensional stability and low birefringence.
    Type: Application
    Filed: July 3, 2002
    Publication date: November 20, 2003
    Applicant: Eastman Kodak Company
    Inventor: Marcus S. Bermel
  • Patent number: 6645584
    Abstract: The invention relates to compostable polymer coated paper or paperboard (1), a method for making the same and products obtained therefrom. According to the invention, a compostable biodegradable coating (3) of paper or paperboard (1) includes an outer layer (6) containing polylactide the weight of which is at the most about 20 g/m2, and of an adhesive layer (7) that binds the outer layer to the paper or paperboard (1) and is of biodegradable polymer material that is coextruded with the polylactide. Suitable materials for the adhesive layer (7) are biodegradable polyesters. The production is by coextrusion of the polylactide layer (6) and the adhesive layer (7) on either one side of the paper or paperboard or on both sides thereof. Products obtained include in particular packages for food stuffs and disposable dishes such as containers for frozen foods, disposable drinking cups, heat-sealed carton packages and packaging wraps.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: November 11, 2003
    Assignee: ENSO Oyj
    Inventors: Jurkka Kuusipalo, Kimmo Nevalainen, Tapani Penttinen
  • Publication number: 20030151156
    Abstract: A method for preparation of a solid state electrochemical device having a cathode, and anode and an electrolyte positioned between the cathode and the anode is disclosed, comprising the steps of forming a controlled geometry feedrod having a cross sectional area, having at least a first extrusion compound and a second extrusion compound, and co-extruding the controlled geometry feed rod through a reduction die at least once to achieve a desired reduction in cross sectional area. Such microfabrication by thermoplastic co-extrusion enhances production of complex and multiphase electrodes and electrolytes.
    Type: Application
    Filed: February 12, 2002
    Publication date: August 14, 2003
    Inventors: Aaron T. Crumm, John W. Halloran
  • Publication number: 20030141625
    Abstract: A process for coextrusion-molding a multilayer article comprising coextruding at a selected coextuding temperature (i) a first outer polymer resin layer having a) a viscosity, b) a melting temperature, and c) a degradation temperature at the selected coextuding temperature, and (ii) a second inner polymer resin layer having a) a viscosity, b) a melting temperature, and c) a degradation temperature at the selected coextuding temperature, wherein the ratio of the outer polymer resin viscosity to the inner polymer resin viscosity at the coextuding temperature is less than or equal to about 1 and the coextuding temperature is above the melting temperature of the highest melting resin and below the degradation temperature of the lowest degrading resin to form a multilayer article.
    Type: Application
    Filed: February 21, 2003
    Publication date: July 31, 2003
    Inventors: Marcus David Shelby, Lavonna Suzanne Buehrig, Benjamin Bradford Gamble
  • Publication number: 20030090026
    Abstract: A method and apparatus are described for coextruding two materials A and B, in which B is extruded on A through a port (3), in which the separating wall between the flows of A and B is formed as a flap closure (4) adapted to act as a non-return valve for the flow of B into A, and further means are provided for extruding B through the port in pulses. The pulses may be effected by opening and closing the closure, by mechanical transmission means or by the effect of imposing pressure difference on the flap (4) by the flows of A and/or B. The pulsing means preferably involves rams (1). The invention is particularly suitable for extruding a low viscosity material B onto a higher viscosity material A, or for making sheets or pipes with alternating segments of differential flexibility, or for coextruding a flow of solid particles with a flow of liquid.
    Type: Application
    Filed: October 9, 2002
    Publication date: May 15, 2003
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 6562425
    Abstract: This invention concerns a multilayer film useful as release sheet for sheet molding compounds, comprising a first skin layer, a second skin layer, a barrier layer for monomeric resins wherein the barrier layer is between the first and second skin layers and the first and second skin layers comprise a mixture of polyolefin and adhesive resin. This invention also pertains to the multilayer films method of production, as well as an SMC sheet employing the multilayer film.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 13, 2003
    Assignee: Pliant Corporation
    Inventors: Daniel G. Denehy, Eric D. Tuttle
  • Patent number: 6540949
    Abstract: Methods of producing polyethylene films having a desired water vapor transmission rate (WVTR) are provided. The methods include casting a polyethylene sheet which has a base layer of a polyethylene and a cavitating agent, and at least one layer of a WVTR-controlling material, and subsequently biaxially orienting the sheet to yield a film having the desired WVTR. The base layer has a porous microstructure and a WVTR substantially higher than the desired WVTR.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: April 1, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventors: Hans Joachim Pip, Rhonda Rogers Agent
  • Patent number: 6524420
    Abstract: A laminate composite is formed by forming a layer of a first thermoplastic resin in contact with a second compatible thermoplastic resin where the first layer comprising an acrylonitrile-butadiene-styrene layer and said second layer comprises a thermoplastic resin selected from the group consisting of comprises polycarbonate resin, phenylene ether resins, and polyamides.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: February 25, 2003
    Assignee: General Electric
    Inventors: Paul Anthony Bristow, Thomas Paul Dunton, Glen R. Tryson
  • Publication number: 20030020205
    Abstract: The present invention discloses an extrusion die module having a flat compression seal surrounding a conical or otherwise angled spillover surface. The die module promotes a flat surface to flat surface compression seal outside of the flow distribution channels and promotes better streamlined flow and material combination than a traditional flat disk die module. The die module promotes a reduced overall diameter and wetted diameter in comparison to standard flat disk dies. In addition, the conical or angled spillover surface is surrounded by the planar sealing surface. Further, the present invention relates to a method for utilizing an extrusion die module with a conical or otherwise angled spillover surface to minimize the die surface area wetted by an intermediate layer in a multi-layer coextrusion process.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Randolph L. Davidson, Robert John Blemberg
  • Publication number: 20030020206
    Abstract: The present invention discloses an extrusion die module having a flat compression seal surrounded by a conical or otherwise angled spillover surface. The die module promotes a flat surface to flat surface compression seal outside of the flow distribution channels and promotes better streamlined flow and material combination than a traditional flat disk die module. The die module promotes a reduced overall diameter and wetted diameter in comparison to standard flat disk dies. In addition, the present invention relates to an extrusion die module having a spillover surface surrounding a planar sealing surface. Further, the present invention relates to a method for utilizing an extrusion die module with a conical or otherwise angled spillover surface to minimize the die surface area wetted by an intermediate layer in a multi-layer coextrusion process.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Randolph L. Davidson, Robert John Blemberg
  • Publication number: 20030020204
    Abstract: The present invention relates to an extrusion die assembly. Specifically, the present invention relates to an extrusion die assembly comprising a pair of extrusion dies wherein one extrusion die is disposed within the second extrusion die. The extrusion dies may comprise a plurality of extrusion die modules wherein at least one of the extrusion die modules incorporates a flat compression deal with a conical or otherwise angled spillover surface. Further, the present invention relates to a method for utilizing an extrusion die assembly comprising a pair of extrusion dies, each having at least one extrusion die module having a conical or otherwise angled spillover surface.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Randolph L. Davidson, Robert John Blemberg
  • Publication number: 20030020203
    Abstract: The present invention discloses an extrusion die module having a flat compression seal and a conical or otherwise angled spillover surface. The die module promotes a flat surface to flat surface compression seal outside of the flow distribution channels and promotes better streamlined flow and material combination than a traditional flat disk die module. The die module promotes a reduced overall diameter and wetted diameter in comparison to standard flat disk dies. Further, the present invention relates to a method for utilizing an extrusion die module with a conical or otherwise angled spillover surface to minimize the die surface area wetted by an intermediate layer in a multi-layer coextrusion process.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 30, 2003
    Inventors: Randolph L. Davidson, Robert John Blemberg
  • Publication number: 20030015819
    Abstract: An elastic web of material has a multiplicity of stems extending from at least one side of the web. The web includes a first continuous layer of elastic material having a first side and a second side and a second layer of material. The second layer of material has a first side which faces the first side of the first layer and a second side from which the stems extend. The first and second layers of material are joined together. The second layer of material can be formed of thermoplastic material or melt processable polymeric material. The first and second layers of material are melt formed. They are joined by coextrusion or lamination to form a multiple layer sheet on which a multiplicity of stems are formed on at least the second layer by a process such as embossing the stems into the heated web using a patterned roll or mold.
    Type: Application
    Filed: September 9, 2002
    Publication date: January 23, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Leon Levitt, Robert D. Kampfer, Michael D. Delmore, Stephen E. Krampe, Brandon T. Berg, Alan J. Sipinen, Mark E. Napierala, Victor P. Thalacker
  • Publication number: 20020187309
    Abstract: The invention relates to a two-colored or multi-colored foam foil (50) on the basis of thermoplastic synthetic material, comprising at least one top layer and one sub-layer, whereby the sub-layer constitutes a foam layer (17) and the top layer exists in the form of a two-colored or multi-colored compact foil (4) of a carrier (15) and at least one additional layer (16), whereby the additional layer(s) (16) are surface-flush arranged in a corresponding recess (19) of the carrier (15) and both, carrier (15) as well as the additional layer(s) (16) each form a portion of the surface of the foil and are colored a different color. The invention relates, moreover, to a method as well as a device for the manufacture of the invention-specific two-colored or multi-colored foam foil (50).
    Type: Application
    Filed: May 2, 2002
    Publication date: December 12, 2002
    Inventors: Eberhard Rost, Jurgen Buhring
  • Patent number: 6478999
    Abstract: A manufacturing method of adhesive tape, by preparing a raw material of a biaxially or non-drawn, film or sheet on the back surface of which a release agent has been applied and to the which an adhesive agent has been applied, and subjecting the raw material to uniaxial drawing under heated conditions without deteriorating releasing and adhesive performance of the raw material, thus producing an adhesive tape having high-strength and low-elongation. The obtained adhesive tape has long and narrow bubbles elongated in the uniaxial drawing direction thereon.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 12, 2002
    Inventors: Seiya Ishizawa, Tomoaki Ishizawa, Kinichi Yazawa, Tetsuo Nagai
  • Publication number: 20020127358
    Abstract: Packaging laminate for packages for liquid foods having excellent liquid and oxygen gas barrier properties in which all included layers are biodegradable. The packaging laminate includes at least one liquidtight layer (11, 13) of homo or copolymers of monomers selected from a group consisting of lactic acid, glycol acid, lactide, glycolide, hydroxy butyric acid, hydroxy valeric acid, hydroxy caproic acid, valerolactone, butyrolactone and caprolactone, as well as an oxygen gas barrier layer (12) of ethylene vinyl alcohol, polyvinyl alcohol, starch or starch derivatives. The oxygen gas barrier layer is preferably applied by a dispersion coating process. The layers may be laminated directly to one another or indirectly by means of interjacent adhesive layers. The packaging laminate may also include a core layer of, for example, paper or paperboard, or a biopolymer. The invention also realises a method of producing the biodegradable packaging laminate according to the invention.
    Type: Application
    Filed: May 21, 1999
    Publication date: September 12, 2002
    Inventors: MIKAEL BERLIN, KARIN HENNINGSSON
  • Patent number: 6420019
    Abstract: The invention relates to a coextruded, transparent, biaxially oriented polyester film having at least three layers, with at least one base layer B, at least 80% by weight of which is composed of a thermoplastic polyester, where an outer layer has been applied to each surface of this base layer, and where at least one outer layer comprises particles, wherein the gloss of both surfaces of the film is above 170 the haze of the film is below 2.4% the planar orientation &Dgr;p of the film is below 0.162. the coefficient of friction (COF) is below 0.6. The invention further relates to the use of a film of this type, and also its production.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: July 16, 2002
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Herbert Peiffer, Gottfried Hilkert
  • Publication number: 20020086597
    Abstract: A method of manufacturing articles utilizing a composite material having a high density of small particles such as microspheres in a matrix material is disclosed. In accordance with one aspect of the present invention, at least first and second layers of flanking material are disposed in a generally non-parallel relationship with respect to each other and then are pulled through a die. While the flanking material layers are being pulled through the die, a composite material is injected into a space defined between the at least first and second layers of flanking material. The composite material and the at least first and second layers of flanking material are heated as they pass through the die to cure the composite material and bond the at least two flanking material layers to the composite material, thereby forming a cured article.
    Type: Application
    Filed: November 1, 2001
    Publication date: July 4, 2002
    Inventors: Darius J. Preisler, Lloyd R. Hilligoss
  • Publication number: 20020050662
    Abstract: An extrusion coating method of extruding a coating solution from a coater onto a web-shaped substrate, comprising steps of: conveying the substrate in a conveying direction; supporting by coming in contact with a first side surface of the substrate by a back-roll; and extruding simultaneously at least a lowermost layer solution and an adjacent layer solution onto a second side surface of the supported substrate in such a way that the lower most layer solution is coated on the second surface and the adjacent layer is superimposed on the lowermost layer solution, wherein a viscosity Va (Pa·s) of the lowermost layer solution and a viscosity Vb (Pa·s) of the adjacent layer solution satisfy the following formula:
    Type: Application
    Filed: August 20, 2001
    Publication date: May 2, 2002
    Inventor: Shigetoshi Kawabe
  • Publication number: 20020037423
    Abstract: The present invention provides a multi-layer resin film having excellent oxygen gas barrier properties, particularly even at high humidity, and further having no chlorine content. The multi-layer resin film of the present invention has a biaxially-stretched polypropylene resin film, an adhesive layer formed on at least one surface of the polypropylene resin film, and a polyvinyl alcohol resin layer formed on the adhesive layer, wherein the polyvinyl alcohol resin layer has a value of crystallinity parameter (CP (M//) ⊥) not less than 0.8. The multi-layer resin film of the present invention can be prepared by forming an adhesive layer on at least one surface of an unstretched polypropylene resin film; stretching the film in one direction; forming a polyvinyl alcohol resin layer on the adhesive layer; and stretching the film in another direction perpendicular to the direction of previous stretching.
    Type: Application
    Filed: March 12, 2001
    Publication date: March 28, 2002
    Inventors: Yoshifumi Yamamoto, Ichiro Kitaura, Yutaka Matsumura, Noriko Takahashi, Takeshi Ohazama, Chikao Morishige
  • Publication number: 20020030301
    Abstract: The invention refers to an apparatus for applying a plastic edge strip (28) on an edge of a plate-like workpiece (16), such like a wooden board, a chip or particle board, a board of wood-like particles or the like, comprising extrusion means (18) for extruding a strand of plastic material (20) on an edge (14) of the workpiece (16) and forming means (24) for forming the extruded strand of plastic material (20) in a desired profile. The invention further refers to a method for applying a plastic edge strip (28) on an edge of a plate-like workpiece (16) and to a plate-like workpiece (16) having such a strand of plastic material (20) extruded thereon.
    Type: Application
    Filed: August 23, 2001
    Publication date: March 14, 2002
    Inventor: Erhard Honig
  • Patent number: 6355336
    Abstract: The present invention relates to a multi-layer packaging film comprising an intermediate layer having at least one outer layer on both surfaces of the intermediate layer, and having the thickness of not more than 40 &mgr;m, said outer layer comprising a polyolefin resin, said intermediate layer comprising a polytetramethylene terephthalate resin obtained by copolymerizing polytetramethylene oxide glycol having a number-average molecular weight of 300 to 5,000 and having an intrinsic viscosity of 0.7 to 2.0, a melting point of 200 to 228° C. and a crystallization temperature of not higher than 180° C., and the thickness of said intermediate layer being 20 to 80% of the thickness of the multi-layer film.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: March 12, 2002
    Assignee: Mitsubishi, Engineering-Plastics Corporation
    Inventors: Nobukatsu Wakabayashi, Ken Honma
  • Publication number: 20020013112
    Abstract: A method of manufacturing a multi-layered web uses contoured honeycomb drums for the manufacture of non-woven webs used to make the multi-layered web. The method can use spunbonded, melt blown, or electro-static spun techniques for depositing solidifying filaments on outer collection surfaces of a multi-drum system. The multi-drum system may be employed to improve multi-layered web uniformity and the overall quality of the multi-layered web by presenting a single optimal collection surface for each independent web layer being produced.
    Type: Application
    Filed: June 19, 2001
    Publication date: January 31, 2002
    Inventors: George J. Bontaites, George Lee
  • Publication number: 20010038160
    Abstract: A strip casting device (2) has a casting container (14) from which through a casting gap (15) two different masses (12, 13) of a material flowable with the addition of heat are poured out as a strip (3) onto a cooling device (4). The second mass (13) is at the same time ejected by way of injection nozzles (21, 22) into the region of the casting gap (15) into the casting flow of the first mass (12). The injection nozzles are preferably movable in various directions.
    Type: Application
    Filed: April 26, 2001
    Publication date: November 8, 2001
    Inventors: Alois Peter, Andreas Egli
  • Patent number: 6312823
    Abstract: A compostable multilayer film includes 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 comprises a lactic acid residue-containing polymer having a glass transition temperature (Tg) below 20° C. At least one of the first and second blocking reducing layers comprise a semicrystalline aliphatic polyester. The core layer may be peroxide modified polylactide polymer which exhibits bridging between polylactide polymer chains.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: November 6, 2001
    Assignee: Cargrill, Incorporated
    Inventors: Ali Zakareya El-Afandi, Patrick Richard Gruber, Jeffrey John Kolstad, James Lunt, Christopher M. Ryan, James Zakareya Nangeroni, Nancy Uzelac Buehler, Mark Hartmann, Jed Richard Randall, Andrea Lee Brosch
  • Patent number: 6282764
    Abstract: A process for personalizing a mounting plate of a plurality of layers of a mounting plate material and a plurality of layers of fibrous material layered over the layers of mounting plate material, which involves joining the fibrous material layers to the mounting plate material layers by penetrating a predetermined number of wick-like extensions of the fibrous material into the mounting plate material to a predetermined depth in the mounting plate material.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: September 4, 2001
    Assignee: Fabricas Lucia Antonio Betere, S.A. (Flabesa)
    Inventors: Manuel Alba Ruiz, Fernando Lopez Diaz
  • Patent number: 6268026
    Abstract: Multilayer laminates including films, sheets, preforms, containers and other articles having at least one wholly aromatic, amorphous, stretchable liquid crystalline polymer layer with at least one non-liquid crystalline thermoplastic polyester layer are provided as well as methods for producing and stretching the multilayer articles. The laminates are suitable for thermoforming and stretch blow molding applications and may be stretched to at least 100 percent elongation at temperatures below 200° C. and at high total draw ratios without fractures or tears. Containers suitable for food or beverage products may be produced from the laminates.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: July 31, 2001
    Assignee: Hoechst Celanese Corporation
    Inventors: Randy D. Jester, Arnold E. Wolf, Robert M. Kimmel, Dominick Cangiano, John A. Penoyer
  • Publication number: 20010005550
    Abstract: The invention relates to a method of producing a laminated packaging material including a core layer of paper or paperboard and a barrier layer applied on one side of the core layer. The invention also relates to a laminated packaging material produced according to the method, as well as a packaging container which is produced from the laminated packaging material.
    Type: Application
    Filed: February 16, 2001
    Publication date: June 28, 2001
    Inventors: Jorgen Bengtsson, Matts Bentmar, Mikael Berlin, Ib Leth
  • Patent number: 6228505
    Abstract: The present invention is directed to biaxially oriented polymeric films. Specifically, the present invention is directed to biaxially oriented polyethylene films having unidirectional tear characteristics in machine direction and method thereof. The film of the present invention consists of (1) a core layer of medium density polyethylene (MDPE) and optionally a cavitating agent; and (2) at least one skin layer on at least one surface of the core layer. The skin layer is also made from a polyethylene. The core and skin layers coextensively adhere to one another and are biaxially oriented in both machine and traverse directions.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: May 8, 2001
    Assignee: Mobil Oil Corporation
    Inventors: Rhonda Rogers Agent, John A. Larter, Hans Joachim Pip
  • Patent number: 6207091
    Abstract: A process for producing a fluoroplastic drawn molded article is disclosed in which a fluoroplastic molded article is brought into contact with a heating medium set at a temperature exceeding the static melting point of the molded article and drawn at a temperature at which the molded article does not substantially melt. The fluoroplastic drawn molded article produced in accordance with the present invention is significantlly improved in physical properties such as tensile strength and tensile modulus.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 27, 2001
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Tetsuo Kanamoto, Ryoukei Endo, Hiroki Uehara