Polyamide (e.g., Nylon, Etc.) Or Addition Polymer Of At Least One Monoethylenically Unsaturated Monomer (e.g., Polyethylene, Polypropylene, Polystyrene, Etc.) Containing Layer Patents (Class 264/173.19)
  • Patent number: 6793859
    Abstract: In one aspect, the invention provides an image receptor medium which comprises an extruded image receptive layer that is receptive to solvent-based inkjet ink. Image receptive layers of the invention comprise a blend of an ink absorptive resin and a carrier resin. The ink absorptive resin is compatible with the carrier resin and had a Hildebrand Solubility Parameter within about 3.1 (MPa)1/2 of that of the solvent of the ink. In another aspect, the invention provides an image receptor medium which comprises a coextruded or extrusion coated image receptive layer and a core layer bonded together. In other aspects, the invention provides methods of printing images and methods of making an extrusion coated or coextruded image receptor medium.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: September 21, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Jeffrey O. Emslander, David J. Kinning, Diane L. Regnier, Caroline M. Ylitalo
  • Publication number: 20040173932
    Abstract: Methods of making multilayer structures useful for packaging bone-in meat or other like products are provided. More specifically, the multilayer structures made by the methods provided have sufficient rigidity, strength, tear resistance and puncture resistance to contain bone-in meat or other like products. In addition, the multilayer structures made by the methods provided can easily seal to themselves or to other structures. Moreover, the multilayer structures made by the methods provided may be biaxially oriented and heat-shrinkable.
    Type: Application
    Filed: December 12, 2003
    Publication date: September 9, 2004
    Inventors: Michael J. Douglas, Roberto P. Castellani, Chad D. Mueller, Duane H. Buelow, Robert J. Blemberg
  • Publication number: 20040166342
    Abstract: A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way that
    Type: Application
    Filed: February 24, 2004
    Publication date: August 26, 2004
    Applicant: DEGUSSA AG
    Inventors: Roland Wursche, Dagmar Kaufhold, Berthold Teloeken
  • Patent number: 6780367
    Abstract: A method for preparing a concrete article comprised of concrete having therein a reinforcing fiber, where at least about 50 percent of the reinforcing fibers are frayed only at an end or ends of the reinforcing fibers, may be made by mixing concrete, water and a reinforcing fiber for a sufficient time to fray the ends of at least 50 percent of the fibers and curing the mixture to form the concrete article.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Aleksander J. Pyzik, Kenneth B. Stewart, Jr., Hari Reddy, Kwanho Yang, Sharon M. Allen, Ted A. Morgan
  • Patent number: 6767618
    Abstract: A multi-layered stretched resin film comprises a base layer (A) comprising more than 90 wt % of a polyolefinic resin and less than 10 wt % of an inorganic fine powder and/or an organic filler; and an amorphous resin-containing layer (B), comprising 0 to 85 wt % of a second polyolefinic resin, which may be the same or different than the first polyolefinic resin, and 15 to 100 wt % of an amorphous resin. The amorphous resin-containing layer (B) is disposed on at least one side of the base layer (A), and has a porosity of 5% or less. Such multi-layered stretched resin films are resistant to waving or curling caused by exposure to the vehicle component of offset printing inks during offset printing, and therefore have excellent printing properties.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: July 27, 2004
    Assignee: Yupo Corporation
    Inventors: Atsushi Ishige, Kazuhisa Kitamura
  • Patent number: 6764760
    Abstract: A label for in-mold decorating, which comprises (I) a thermoplastic resin film base layer, (II) an interlayer overlying said base layer and comprising (a) a thermoplastic resin composition, and (b) at least one antistatic agent, and (III) a heat-sealable resin layer overlying said interlayer. The label for in-mold decorating can be manufactured without developing a resin-like stain or causing roll contamination. It is free from inconveniences arising from insufficient antistatic properties in printing, cutting, blanking, and inserting into a mold, irrespective of the working environment. In addition, it exhibits a high adhesive strength upon application to a molded container.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: July 20, 2004
    Assignee: Yupo Corporation
    Inventors: Takatoshi Nishizawa, Masaki Shiina
  • Patent number: 6764629
    Abstract: The present invention relates to laminated membranes formed by multi-layer processing techniques including alternating layers of thermoplastic urethane and a copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol. The membranes are characterized in that hydrogen bonds are formed between the layers of thermoplastic urethane and the copolymer of ethylene and vinyl alcohol.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: July 20, 2004
    Assignee: Nike, Inc.
    Inventors: Erwin C. Shepard, DeWayne R. Hartlerood, Paul H. Mitchell
  • Publication number: 20040096615
    Abstract: A copolymer of nylon 6 (caprolactam mer units) and nylon 12 (dodecanolactam mer units) and/or nylon 11 (undecanolactam mer units), which has been modified to provide improved physical properties, such as flex modulus, elastic modulus, and yield strength, serves as a layer of a hose suited to use in airbrake applications. The modified copolymer is resistant to degradation by zinc chloride and moisture and thus may be used as a peripheral layer of the hose in place of a conventional protective layer comprising a pure polyamide, such as nylon 11 or 12. Alternatively, the modified copolymer may be used as a tie layer for rendering a peripheral layer comprising nylon 12 or 11 compatible with a layer of nylon 6, allowing the less expensive nylon 6 material to comprise the bulk of the hose thickness. The layer includes a compatibilizer, such as a maleic anhydride grafted polyethylene, and may also include plasticizers and impact modifiers.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 20, 2004
    Applicant: Saint-Gobain Performance plastics Corp.
    Inventors: Iani Manas-Zloczower, Roger C. Schley, Craig A. Danko, Roger J. Lewicki
  • Patent number: 6737130
    Abstract: A multilayer film has a hermetically heat-sealable, pressure-reclosable, outer heat seal layer which contains a blend of a substantially spherical homogeneous polyolefin (i.e., SSH polyolefin) with a different thermoplastic polymer. The SSH polyolefin is present in an amount of from about 20 to 80 weight percent, and the different thermoplastic polymer is present in the layer in an amount of from about 80 to 20 weight percent, based on total layer weight. The SSH polyolefin has at least 60 side chain branches per 1000 carbon atoms, and has a melt index of from about 1 to 10. The invention also includes a process for making the multilayer film. Also disclosed is a roll of film comprising a disposable outer layer which is directly and peelably adhered to a first surface of second layer comprising the SSH polyolefin, a packaging article comprising an inside layer comprising the SSH polyolefin.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: May 18, 2004
    Assignee: Cryovac, Inc.
    Inventor: Isabella Ferri
  • Patent number: 6727002
    Abstract: The present invention relates to a single- or multilayer product containing &agr;-olefin-vinyl alcohol copolymers and at least one &agr;-olefin-vinyl acetate copolymer, wherein the amount of vinyl acetate repeat units present in the &agr;-olefin vinyl acetate copolymer is in the range from 35 to 99.99% by weight, and these repeat units have good flexibility which permits processing films or other thin-walled items which are transparent after stretching or thermoforming, and to a process for producing the same, and to their use as packaging films.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: April 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Hoch, Ulrich Itter, Roland Parg, Claus Wrana, Helmut Schulte, Peter Schwarz, Ralph Ulrich
  • Publication number: 20040043173
    Abstract: A method for producing a coated polymeric article by co-extruding polypropylene and a maleic anhydride modified polypropylene, corona-treating, and applying a polysilicate barrier is described. Also provided are films and bottles produced using this method.
    Type: Application
    Filed: September 16, 2003
    Publication date: March 4, 2004
    Applicant: Hoechst Trespaphan GmbH
    Inventor: Ravi Prasad
  • Publication number: 20030218266
    Abstract: The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 27, 2003
    Inventor: Richard Arnold Hills
  • Patent number: 6632383
    Abstract: A method for producing an improved coextruded polymeric film is disclosed. First, a base layer containing a polymeric matrix and at least one additional layer on at least one side of the base layer are coextruded. If the coextruded polymeric film is to be opaque, the base layer also contains at least one cavitating agent. Next, the coextruded multi-layer film is cooled. Finally, the coextruded multi-layer film is oriented in at least the machine direction (MD). At least the base layer of the coextruded polymeric film contains a fluoropolymer. The inclusion of the fluoropolymer in at least the base layer of the coextruded polymeric film provides a more even distribution of polymer flow through a die, which in turns leads to improved film gauge uniformity.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: October 14, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventor: Robert G. Peet
  • Publication number: 20030173716
    Abstract: A colored polyolefin film is printed by digital printing techniques. The colored polyolefin film is formed by blending a coloring agent, such as a pigment or a dye, with a polyolefin, and forming a film from the blend by an extrusion process. Digital signals are supplied to a printer adapted to respond to such signals to print the colored film. Indicia may be placed on the surface of the colored film by electrostatic printing, thermal transfer printing or ink jet printing, especially with an ultraviolet (UV) curable ink jet ink. The colored polyolefin film may be a multi-layer film having an opaque, cavitated core layer and at least one colored skin or tie layer.
    Type: Application
    Filed: February 13, 2002
    Publication date: September 18, 2003
    Inventor: Pang-Chia Lu
  • Publication number: 20030170409
    Abstract: A multilayered packaging film having good antifog performance that is suitable for use in food packaging. The multilayered film comprises a nylon film having first and second surfaces; a silicone oil on the first surface of the nylon film; and a sealant film on the second surface of the nylon film, either directly or via an intermediate adhesive tie layer. An antifog composition is either contained within at least part of the sealant film or is coated on a surface of the sealant film opposite the nylon film. The silicone oil effectively blocks the migration of the antifog composition into the nylon film when the multilayered film is stored in roll form.
    Type: Application
    Filed: March 5, 2002
    Publication date: September 11, 2003
    Inventors: Simon J. Porter, Jeffrey D. Moulton, Yuan-Ping Robert Ting
  • Patent number: 6602455
    Abstract: A bi-axially oriented, heat-shrinkable multi-layer film comprising a core layer (A) comprising an ethylene-vinyl alcohol copolymer (EVOH), a first outer layer (B) comprising an ethylene homo- or co-polymer and a second outer layer (C), which may be equal to or different from the first outer layer (B), comprising an ethylene homo- or co-polymer, characterized in that said film has been bi-axially oriented at an orientation ratio in the longitudinal direction higher than 4:1, preferably higher than 4.5:1, more preferably of at least 5:1 and at an orientation ratio in the cross-wise direction higher than 4:1, preferably higher than 4.5:1, more preferably of at least 5:1, is obtained by a process which comprises melt extrusion of the film polymers through a flat die and orientation of the obtained cast sheet simultaneously in the longitudinal and the transversal directions by a simultaneous tenter.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: August 5, 2003
    Assignee: Cryovac, Inc.
    Inventor: Roberto Forloni
  • Patent number: 6585920
    Abstract: Embossed oriented thermoplastic films and a method of making same are described. The embossed oriented thermoplastic films have substantially the same mechanical properties as unembossed oriented thermoplastic films. The method includes providing an oriented thermoplastic film having first and second major surfaces, softening at least one of the first and second major surfaces to produce a softened surface, embossing the softened surface to produce an embossed oriented thermoplastic film, and cooling the embossed oriented thermoplastic film.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: July 1, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Joan M. Strobel, Mark A. Strobel, Patrick J. Hager, Ronald S. Kapaun
  • Patent number: 6576329
    Abstract: A thermoplastic film comprising a core layer comprising a polyolefin wherein the core layer comprises the interior of the film; and a first skin layer comprising a silicone grafted polymer, wherein the first skin layer is exterior to the core layer.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: June 10, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventor: Dan-Cheng Kong
  • Publication number: 20030099851
    Abstract: Polyolefin films having excellent barrier and metal adhesion characteristics and methods for producing the same are provided. The polyolefin film structures include a polyolefin core layer having a first and second side, a heat sealable layer adjacent to the first side of the core layer and substantially coextensive therewith, and a high barrier layer adjacent to the second side of the core layer and substantially coextensive therewith. The high barrier layer includes a blend of ethylene vinyl alcohol copolymer and nylon. Preferred embodiments of the present invention also provide for a metallized skin layer adjacent to the high barrier layer and substantially coextensive therewith.
    Type: Application
    Filed: December 5, 2000
    Publication date: May 29, 2003
    Inventors: Eldridge M. Mount, Francis Tran, John A. Larter
  • Publication number: 20030094736
    Abstract: The present invention provides a method of using a medical tubing with a pump for administering measured amounts of a beneficial fluid over time to a patient. The method includes the steps of providing a material selected from the group consisting of ethylene homopolymers and ethylene copolymers, wherein the ethylene copolymers are obtained by copolymerizing ethylene with a comonomer selected from the group consisting of alkyl olefins, alkyl esters of a carboxylic acid and lower alkene esters of a carboxylic acid, or blends thereof; providing an extruder with an extrusion die; extruding the material into a medical tubing; providing a surface modifier solution; preheating the surface modifier solution to a temperature within the range of 30-95° C.; applying the preheated solution onto the tubing at it exits the extrusion die when the tubing is in a molten state or a semi-molten state; and pumping fluid through the tubing with the pump.
    Type: Application
    Filed: December 20, 2002
    Publication date: May 22, 2003
    Inventors: Chuan Qin, Patrick T. Ryan, Michael T.K. Ling, Donna L. Rostron, Yuanpang S. Ding, Lecon Woo, Susan R. Mizener, Birendra K. Lal
  • Patent number: 6562478
    Abstract: A sealable coextruded film is made from at least one outer layer and from at least one base layer, where the outer layer is composed of a propylene terpolymer comprising from 80 to 99.5 mol % of structural units derived from propylene, from 0.2 to 15 mol % of structural units derived from ethene or from a C4-C6 1-olefin (I) and from 0.3 to 15 mol % of structural units derived from another C4-C12 1-olefin (II) different from the C4-C6 1-olefin (I), and where the propylene terpolymer has been prepared using metallocene catalysts.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: May 13, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: David Fischer, Bernd Lothar Marczinke, Werner Schöne, Franz Langhauser, Wolfgang Bidell, Roland Hingmann, Ulrich Moll, Meinolf Kersting, Günther Schweier, Peter John Vaughan Jones
  • Patent number: 6562443
    Abstract: A heat shrinkable film suitable for use in cook-in applications is provided which exhibits a transverse direction free shrink at 50° C. of less than about 2% and a transverse direction free shrink at 57° C. of at least about 3%. The food contact layer includes a polymer having a surface energy of at least about 0.034 J/m2 and a second layer includes at least one member selected from the group consisting of polyester, polyvinylidene chloride, polyamide and polyalkylene carbonate. Preferably, the desired shrink properties are attained by annealing the film under controlled conditions.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: May 13, 2003
    Assignee: Cryovac, Inc.
    Inventors: R. Karina Espinel, Ram K. Ramesh
  • Patent number: 6558808
    Abstract: The disclosed heat-sealable, layered film comprises a polyolefinic base layer and at least one outer layer. The outer layer comprises a propylene-olefin copolymer prepared by means of a metallocene catalyst. The film is prepared by coextruding melts corresponding to the individual layers of the film, taking off the coextruded film over a take-off roll whose temperature is between 10 and 90° C., biaxially stretching and then heat-setting the resulting film, and optionally corona- or flame-treating the film, then winding it up in a wind-up unit.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: May 6, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: Thomas Dries, Walter Spaleck, Andreas Winter
  • Patent number: 6536177
    Abstract: A novel composition of a materials that can be extruded into sheets to form panels to create a roofing system wherein the panels are formed to interlock with like panels in order to provide a substantially weatherproof covering on a roof. The sheet member has a top layer made of ASA (Acrylonitrile/Styrene/Acrylate polymer) and a bottom layer made of PVC (Polyvinylchloride). The two layers are extruded and bonded or preferably coextruded. Then the bonded materials are thermoformed to resemble more popular types of roof coverings such as shake or shingles or tiles.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 25, 2003
    Inventors: Frank Lane Italiane, Joseph Sciarra, III
  • Patent number: 6537652
    Abstract: A biaxially oriented polypropylene film is described. The n-heptane-insoluble content of the film has a chain isotacticity index, measured by 13-C-NMR spectroscopy, of at least 95%. In particular, the film should have the lowest possible shrinkage (transverse shrinkage and longitudinal shrinkage) at elevated temperatures. In addition, a process for the production of the polypropylene film and its use is described.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: March 25, 2003
    Assignee: Hoescht Trespaphan GmbH
    Inventors: Karl-Heinz Kochem, Kerstin Muller-Nagel
  • Patent number: 6534153
    Abstract: The present invention relates to a matte surface film comprising: a base layer comprising a polyolefin; and a matte surface layer comprising a blend of high molecular weight high density polyethylene (HMWHD PE) with at least one incompatible polyolefin. The incompatible polyolefin may be ethylene propylene (EP) copolymers, ethylene butylene propylene (EBP) terpolymers or polypropylene (PP) homopolymers, such as metallocene catalyzed isotactic polypropylene (m-iPP) or metallocene catalyzed syndiotatic polypropylene (m-sPP). The matte surface layer may additionally contain a low molecular weight high density polyethylene or a medium molecular weight high density polyethylene. The film possesses an improved matte appearance and may be used for packaging and label applications.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: March 18, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventors: Shaw-Chang Chu, George F. Cretekos, John A. Larter, Tien-Kuei Su, John R. Wagner, Jr.
  • Patent number: 6528155
    Abstract: A method for producing an opaque polymeric film comprises: (a) extruding a base layer comprising a polymeric matrix and at least one cavitating agent; (b) coextruding at least one additional layer on at least one side of the base layer; (c) cooling the coextruded multi-layer film; and then (d) orienting the film in at least the machine direction (MD); wherein at least said base layer contains a syndiotactic polystyrene polymer, and wherein said syndiotactic polystyrene polymer is in the form of solid, non-hollow particles during the orienting step (d).
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: March 4, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventors: Dan-Cheng Kong, John A. Larter, Eldridge Milford Mount, III
  • Patent number: 6528174
    Abstract: The present invention relates to film-forming compositions containing ethylene vinyl acetate copolymers with a vinyl acetate percentage that causes film-forming problems and processability problems and an alkylene bisoleamide which is used to enhance the film forming capabilities of theses high VA content resins. The invention also relates to films prepared from theses compositions and to coating compositions.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: March 4, 2003
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Randall Allen Vogel, George L. K. Hoh, Alok Shekhar
  • Patent number: 6524029
    Abstract: A geomembrane comprising a unitary structure fabricated by co-extrusion including a center core, a thermoplastic adhesive layer secured on one side of the center core, and a textured layer secured on the opposite side of the center core. The geomembrane is utilized in the manufacture of a liner for earthen constructions by employing the thermoplastic layer of the geomembrane to secure the geomembrane to a geosynthetic clay liner.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: February 25, 2003
    Assignee: Olympic General Corporation
    Inventors: James E. Nobert, Jesse W. Raia
  • Patent number: 6521168
    Abstract: A process for orienting and drawing multiple-layer thermoplastic materials, in particular of a tubular type, wherein a tube exiting from a heating tunnel is brought up to an orienting temperature of a first material having the highest orienting temperature, while the material of the remaining layers is still in a plastic state. The first material is subjected to a first partial drawing process, while the remaining layers plastically deform to follow its expansion. The temperature of the tube is dropped to the orienting temperature of a second layer and a second layer is drawn, while at the same time continuing to draw the previous layer. Steps of dropping the temperature and drawing the second layer are repeated for the subsequent layers, until the maximum allowable degree of drawing is achieved for each layer.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: February 18, 2003
    Assignee: Tecno Coating Engineering S.r.l.
    Inventor: Claudio Gini
  • Patent number: 6521338
    Abstract: A multilayer stretch film comprises a first layer having cling properties and comprising an homogeneously-branched copolymer of ethylene and a C4-8 &agr;-olefin, the copolymer having a density in the range 0.850 to 0.890 g/cm3, and a second layer having substantially no cling properties and comprising at least 80 wt. % of a low density polyethylene having a density in the range 0.915 to 0.940 g/cm3. Optionally, the film may comprise at least one core layer between the first and second layers. Films of this type are particularly suited to palletisation of loads.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: February 18, 2003
    Assignee: Mima Films S.C.A.
    Inventor: Xavier Maka
  • 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
  • Patent number: 6500533
    Abstract: A method for producing an opaque polymeric film comprises: (a) extruding a base layer comprising a polymeric matrix and at least one cavitating agent; (b) coextruding at least one additional layer on at least one side of the base layer; (c) cooling the coextruded multi-layer film; and then (d) orienting the film in at least the machine direction (MD); wherein at least said base layer contains polybutylene terephthalate (PBT) and polycarbonate.
    Type: Grant
    Filed: February 9, 2000
    Date of Patent: December 31, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Dan-Cheng Kong, John A. Larter, Eldridge M. Mount, III
  • Patent number: 6497458
    Abstract: The invention is directed to a bristle (1) suitable for use in a brush (4) or the like, and in particular in a toothbrush. The bristle (1) is made of a plastic material and includes preferably a circular area of cross-section. When viewed in cross-section, the bristle (1) includes two sections (2, 3) with different properties. These sections (2, 3) are not in concentric relative arrangement. As a result, the bristle (1) curves along its longitudinal axis. The curvature produces an improved cleaning action of the brush (4).
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: December 24, 2002
    Assignee: Braun GmbH
    Inventors: Scott Batson, Georges Driesen, Ahmet Cem Firatli, Rainer Hans, Norbert Schaefer, Armin Schwarz-Hartmann, Mingchih M. Tseng, Helge Zimmet
  • Publication number: 20020180083
    Abstract: A stopper for use in a substantially cylindrical bottle opening having a substantially cylindrical shape to seal the bottle opening and including a first polymer portion and a second polymer portion, wherein the second polymer portion coaxially overlies the first polymer portion. In another embodiment, the stopper includes a third polymer portion wherein the first polymer portion coaxially overlies the third polymer portion. A method of protecting liquid in a bottle with a substantially cylindrical bottle opening including providing a stopper having a substantially cylindrical shape to seal the bottle opening and closing off the bottle by insertion of the stopper into the bottle opening. A method of producing a stopper for use in a substantially cylindrical bottle opening comprising extruding a first polymer portion through an extrusion die, coaxially coating the first polymer portion with a second polymer portion to form a body.
    Type: Application
    Filed: July 29, 2002
    Publication date: December 5, 2002
    Inventor: Stuart Yaniger
  • Patent number: 6489019
    Abstract: A co-extruded sheet made from olefin polymer materials includes (1) at least one outer layer of (a) a propylene polymer having a melt flow rate of 0.5-15 dg/min, or a graft copolymer comprising a backbone of a propylene polymer material, to which is graft polymerized a vinyl monomer, and (b) a nucleating agent having a melting point greater than 265° C. and (2) another layer made from (a) about 5% to about 50% of a high melt strength propylene homopolymer or copolymer, and/or about 5% to about 40% of chopped glass fibers, (b). optionally about 5% to about 40% of an inorganic filler, (c) about 2% to about 50% of an olefin polymer composition, and (d) optionally about 5% to about 70% of one or more other olefin polymer materials. When the second layer is reinforced with glass fibers, the stiffness of the sheet is increased while maintaining impact strength.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: December 3, 2002
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Bakhtiar Alam Shah, Jay S. Rosenthal
  • Patent number: 6482532
    Abstract: Easy-tear, non-halogenated, high-clarity ethylene polymer films are described that do not contain migratory additives and that are useful as a domestic food wrap. These films also exhibit high inherent cling values. In one embodiment, the film is multilayered in which the outer layers comprise a very low density heterogeneously linear polyethylene or a homogeneously branched polyethylene, preferably a substantially linear ethylene polymer, and the inner layer(s) comprise a low density polyethylene. In another embodiment, the film is a monolayer, or multiple layers of the same formula, in which the film comprises a mixture of a very low density heterogeneous linear polyethylene or a homogeneously branched polyethylene, preferably a SLEP, and a LDPE.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: November 19, 2002
    Assignee: Dow Global Technologies Inc.
    Inventors: Peter C. C. Yap, Shih-Yaw Lai
  • Publication number: 20020168489
    Abstract: The invention relates to high gas barrier packaging films exhibiting good shrinkage and containing an antifog composition for modified atmosphere packaging of foods and the like. The films are useful for producing modified atmosphere packages that preserve and enhance the shelf life of food and nonfood oxygen sensitive items. The films exhibit excellent shrinkage, permanent antifog, easy processing and low cost of manufacture.
    Type: Application
    Filed: May 8, 2001
    Publication date: November 14, 2002
    Inventors: Robert R. Ting, Earl L. Hatley, Jeffrey D. Moulton
  • Patent number: 6440533
    Abstract: A coextruded multilayer film laminate featuring a polyolefin based formulation which closely matches the mechanical performance criteria of a plasticized PVC film is disclosed. This film is particularly suitable for use as a replacement film for plasticized PVC in a variety of medical and non-medical applications. The multilayer films of the present invention offer a particular set of mechanical properties, normally associated with plasticized PVC, including easy stretch, high degree of recovery, low fatigue and minimal permanent set. Moreover, these polyolefin based formulations do not contain any known or suspected carcinogenic compounds and may be produced at costs that are highly competitive with the costs associated with a conventional, plasticized PVC film.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: August 27, 2002
    Assignee: Tredegar Film Products Corporation
    Inventors: Carl Douglas Ray, James Peter DiPoto, Shailesh Chunilal Patel
  • Patent number: 6423420
    Abstract: An oriented multilayer film is provided, the film including in at least one outer layer an ethylene copolymer having a density of 0.900-0.935 g/cm3 and a CDBI of 50-95% the outer layer is in contact with a polypropylene core layer, and the film is made by coextrusion of the ethylene copolymer and the polypropylene layer and subsequent orientation. The coextruded layers can be uniaxially oriented or biaxially oriented without difficulties caused by presence of low molecular weight amorphous polymer fractions inherently present in traditional Ziegler-Natta linear low density polyethylene. The optical properties of oriented polypropylene films can be retained, while the sealing temperature is lowered and the heat seal strength and the hot tack performance properties are improved.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 23, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick Brant, David M. Fiscus, Achiel Josephus Maria Van Loon
  • Patent number: 6419778
    Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: July 16, 2002
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akitaka Miyake, Tomoko Uematsu, Toshimitsu Tsuji
  • Patent number: 6410156
    Abstract: Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 25, 2002
    Assignee: Honeywell International Inc.
    Inventors: Murali K. Akkapeddi, Edward P. Socci, Timothy J. Kraft, Darnell C. Worley, II, Jeffrey D. Pratt, Clark V. Brown
  • Patent number: 6410124
    Abstract: A multi-layer film includes a base layer comprising a polyolefin and at least one additional layer comprising a metallocene-catalyzed syndiotactic polypropylene, wherein the base layer and the at least one additional layer comprising a metallocene-catalyzed syndiotactic polypropylene are not suitable for use as a heat sealable film. The multi-layer films of the present invention have improved metallizable surfaces and the metallized films exhibit excellent gas (e.g., oxygen and water vapor) barrier properties, as well as good pick off, optical properties (optical density, haze, and gloss), and coefficient of friction (COF).
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: June 25, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventor: Robert G. Peet
  • Patent number: 6406653
    Abstract: A multilayer sheet, which is particularly well adapted for use as as a label sleeve on carbonated beverage containers, includes first and second coextruded unfoamed layers of polymer compositions each consisting essentially of polyolefin, polystyrene and a compatibility agent. The polyolefin and polystyrene are in a weight ratio in the range of about 30/70 to 70/30, and the compatibility agent is in the amount of about 5% to 10% by total weight. A pigment in the amount of about 10% to 15% by total weight may be included in one or both of the coextruded layers. The polyolefin preferably is selected from the group consisting of polypropylene, polyethylene and mixtures thereof, and the compatibility agent preferably comprises a styrene-ethylene/butylene-styrene block copolymer. One of the unfoamed layers preferably is thicker and of higher strength than the other layer, while the other layer has a smooth uniform exterior surface.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: June 18, 2002
    Assignee: American Fuji Seal, Inc.
    Inventors: Maurice W. Blackwelder, Louis M. DiBello
  • Patent number: 6403005
    Abstract: A method of making a high gloss, multilayered thermoplastic film by pinning the extruding the molten thermoplastic film material onto a polished casting roll having a mirror finish. The thermoplastic film produced by this method has a superior gloss finish and has a ratio of distinctness of image in the machine direction to distinctness of image in the cross direction in the range of 1.3:1 to 1.0:1, and has a 20° gloss in the machine direction and the cross direction of at least 40.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: June 11, 2002
    Assignee: Avery Dennison Corporation
    Inventors: Bernard S. Mientus, Michael Hannington, Luigi V. DiCarlo
  • Publication number: 20020053755
    Abstract: A composite web including an elastically stretchable web and an inelastically stretchable web bonded together is stretched on a course defined between at least two nip roll pairs to obtain an elastically stretchable composite sheet. The composite web is brought into contact with a peripheral surface of at least one roll of each nip roll pair over an area of the peripheral surface defined by a quadrant of this roll's circular cross section.
    Type: Application
    Filed: March 22, 2001
    Publication date: May 9, 2002
    Inventors: Toshio Kobayashi, Hiroyuki Ohata, Masaki Yoshida
  • Publication number: 20020054996
    Abstract: The present invention relates to: a method of preparing a capstock layer that includes a comb copolymer; a method of preparing a multi-layered polymeric composite, one layer of which is a capstock layer; and a capstock layer and a multi-layered composite formed, respectively, thereby.
    Type: Application
    Filed: September 13, 2001
    Publication date: May 9, 2002
    Inventor: Paul Ralph Van Rheenen
  • Publication number: 20020050124
    Abstract: A multilayer stretch film comprising at least a first layer (i) with cling properties comprising an olefin (co)polymer composition, a second layer (ii) with slip properties comprising another olefin (co)polymer composition and if desired at least one core layer (iii) comprising an olefin (co)polymer composition between the first layer (i) and the second layer (ii). The outer surface of the first layer (i) with cling properties is provided with a non-stretchable thin film of one or more slip agent(s) covering at least 50% up to 100% of the outer surface of the first layer (i), lowering the cling properties of the unstretched composite film. The thin film of slip agent(s) is provided either by direct application of the slip agent(s) onto the outer surface or by use of slip agent(s) having limited compatibility with the (co)polymer composition as additive in the (co)polymer composition of the first layer (i).
    Type: Application
    Filed: September 28, 2001
    Publication date: May 2, 2002
    Inventor: Norbert Jaeger
  • Publication number: 20020045056
    Abstract: A process for producing a UV-stable laminated structure having thermal aging resistance includes coextruding the following layers in a single-stage operation, or laminating the following layers onto one another in a heatable roll nip:
    Type: Application
    Filed: June 21, 2001
    Publication date: April 18, 2002
    Inventors: Achim Grefenstein, Gerhard Lindenschmidt, Carsten Netze, Doris Zeltner
  • Publication number: 20020041971
    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: September 27, 1999
    Publication date: April 11, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: DANIEL G. DENEHY, ERIC D. TUTTLE