Wax Containing Patents (Class 428/348)
  • Patent number: 6376069
    Abstract: A heat-transfer label including a non-wax, non-silicone release layer for use in decorating an article without leaving a visually discernible release residue on the decorated article. In a preferred embodiment, the label includes a transfer portion comprising a protective lacquer layer, an ink design layer over the protective lacquer layer, and a heat-activatable adhesive layer over the ink design and protective lacquer layers, the adhesive layer extending beyond the peripheries of the ink design and protective lacquer layers. The adhesive layer preferably includes a polyester resin and an anti-blocking agent, such as a paraffinic wax. The label also includes a support portion, the support portion including a carrier and a non-wax, non-silicone release layer positioned over the carrier and in direct contact with the protective lacquer layer and the periphery of the adhesive layer.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: April 23, 2002
    Assignee: Avery Dennison Corporation
    Inventors: Wayne L. Bilodeau, James S. Nugent, Kuolih Tsai
  • Publication number: 20020031661
    Abstract: A heat-transfer label including a non-wax, non-silicone release layer for use in decorating an article, such as a glass container, without leaving a visually discernible release residue on the decorated article. In a preferred embodiment, the label includes a transfer portion, the transfer portion comprising a protective lacquer layer, an ink design layer over the protective lacquer layer, and a heat-activatable adhesive layer over the ink design and protective lacquer layers, the adhesive layer extending beyond the peripheries of the ink design and protective lacquer layers. The protective lacquer layer preferably includes a cross-linked phenoxy resin, the ink design layer preferably includes a polyester resin, and the adhesive layer preferably includes a polyester resin and an anti-blocking agent, such as a paraffinic wax.
    Type: Application
    Filed: June 25, 1999
    Publication date: March 14, 2002
    Inventors: WAYNE L. BILODEAU, JAMES S. NUGENT, KUOLIH TSAI
  • Publication number: 20010051265
    Abstract: The present invention relates to a heat-setting label sheet that is a polymeric transfer sheet that can be marked and transferred by the consumer. Also encompassed by the present invention is a method of transferring the heat-setting label sheets. The heat-setting label sheets of the present invention comprise a support; an optional pressure sensitive adhesive layer; an Adhesion Layer comprising a thermoplastic polymer which melts in the range of 50-250° C., a wax which melts in the range of 50-250° C., or combinations thereof; an optional opaque layer comprising a styrene-butadiene latex, thermoplastic polymer, elastomer, and optional pigment; and a second optional opaque layer comprising vinyl acetate-ethylene copolymer, thermoplastic elastomer, elastomer and optional pigment. The heat-setting label sheet of the present invention can be imaged by an electrostatic printer or copier, ink jet printer, offset or screen printing, craft-type marking, and the like.
    Type: Application
    Filed: April 9, 2001
    Publication date: December 13, 2001
    Inventors: Scott A. Williams, Heather Reid
  • Publication number: 20010036548
    Abstract: The present invention relates to a flame retardant hot melt composition comprising from about 10% to about 60% by weight of the adhesive of at least one copolymer of ethylene, from about 10% to about 70% by weight of the adhesive of a flame retarding hydrated inorganic compound and from about 5% to about 35% by weight of at least one wax component.
    Type: Application
    Filed: May 29, 2001
    Publication date: November 1, 2001
    Inventors: Kristine D. Halloran, Cheryl Y. Chase
  • Patent number: 6239208
    Abstract: The present invention relates to a flame retardant hot melt composition comprising from about 10% to about 60% by weight of the adhesive of at least one copolymer of ethylene, from about 10% to about 70% by weight of the adhesive of a flame retarding hydrated inorganic compound and from about 5% to about 35% by weight of at least one wax component.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: May 29, 2001
    Assignee: H. B. Fuller Licensing & Financing, Inc.
    Inventors: Kristine D. Halloran, Cheryl Y. Chase
  • Patent number: 6224964
    Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: May 1, 2001
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Suto, Katsuyuki Oshima
  • Patent number: 6165611
    Abstract: A thermal transfer sheet for printing a printed matter having a metallic luster comprised of a substrate, a deposition anchor layer, a metal deposition layer and an adhesive layer. The deposition anchor layer, the metal deposition layer and the adhesive layer are formed in this order on one surface of the substrate. The deposition anchor layer contains a linear polymer having a glass transition temperature of not less than 130.degree. C. by an amount of not less than 40 weight % of a total weight of the deposition anchor layer to thereby preventing the metal deposition layer from clouding due to high heat of a thermal head.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: December 26, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Toshifusa Hirano, Shunichi Ebihara
  • Patent number: 6120863
    Abstract: Disposable food contact compatible microwaveable containers having one or more micronodular surface are disclosed. These containers, including plates, bowls, cups, trays, buckets, souffle dishes, and lids are prepared from a polyolefin selected from the group consisting of polypropylene, polypropylene polyethylene copolymer or blends, and mixtures of these, mica, and pigment and are thermoformed into the shape of a the aforementioned containers exhibiting (a) a micronodular surface on at least one side of the surface; (b) a melting point of not less than about 250.degree. F.; said containers being dimensionally stable and resistant to grease, sugar, and water at temperatures up to at least 250.degree. F. and being of sufficient toughness to resist cutting by serrated polystyrene flatware.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: September 19, 2000
    Assignee: Fort James Corporation
    Inventors: Cristian M. Neculescu, Richard J. Rogers, Mark B. Littlejohn, Anthony J. Swiontek
  • Patent number: 6120861
    Abstract: A tubular film for encasing food. The tubular film comprises a material which has been regenerated from a solution of cellulose in a solvent comprising carbon disulfide. The tubular material is longitudinally stretched by from 8 to 30 percent and transversely stretched by from -3 to +10 percent while wet and the stretch is maintained during drying, said transverse stretch being less than 75 percent of the longitudinal stretch, to obtain a longitudinal crystalline orientation. In general, the tubular material has a wall thickness of from 75 to 90 percent of a tubular material which is identical except for being longitudinally unstretched. The invention also includes the method for making the tubular material by stretching the tubular material while wet and maintaining the stretch during drying.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: September 19, 2000
    Assignee: Teepak Investments Inc.
    Inventors: Mark van der Bleek, David Pohl
  • Patent number: 6110600
    Abstract: A backseamed casing has a casing film comprising a first outer layer and a second outer layer, the first outer layer containing a polyamide having a melting point of from about 250-400.degree. F., and the second outer layer containing a polyamide having a melting point of from about 250-400.degree. F. A butt-sealed backseamed casing has a casing film to which a butt-seal tape film is sealed, the casing film having an inside layer containing a polyamide having a melting point of from about 250-480.degree. F., and an outside layer comprising polyolefin, with the butt-seal tape film comprising polyolefin. A heat-shrinkable film has a first outer layer, a second outer layer, and an inner layer. The first outer layer contains a first polyamide having a melting point of from about 250-400.degree. F.; and the second outer layer contains a second polyamide having a melting point of from about 250-480.degree. F.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: August 29, 2000
    Assignee: Cryovac, Inc.
    Inventor: Ram K. Ramesh
  • Patent number: 6106950
    Abstract: The present invention relates to oxygen barrier film structures and a method of using thereof. More particularly, the invention relates to oxygen barrier film structures comprising at least one substrate, a primer layer on at least one surface of the substrate, said primer comprising a mixture of at least one aqueous dispersion of polyurethane (A) and at least one water dispersible crosslinking agent (B); an oxygen and moisture resistant barrier coating onto said primer treated surface of the polymeric substrate; said coating comprising a mixture of at least one aqueous polyvinyl alcohol or its copolymers (C) and at least one crosslinking agent (D). Improved adhesion properties of the barrier coating on substrates such as polyolefin, polyester and polyamide are obtained.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: August 22, 2000
    Assignee: H. B. Fuller Licesing & Financing Inc.
    Inventors: Brenda C. Searle, Leonard C. Jannusch, Thomas E. Rolando, Peter A. Voss, Craig P. Copping
  • Patent number: 6083582
    Abstract: A process and materials are described in which highly refined cellulose fibers are broken down into microfibers and further processed into compositions, films, coatings and solid materials which are biodegradable and even edible. The process for the formation of hardenable compositions may comprise providing a composition comprising highly refined non-wood cellulose fiber, mechanically reducing the size of the non-wood cellulose fiber to less than 2 mm, reducing the amount of binding of microfibers by lignin within said non-wood cellulose fibers present in said composition comprising cellulose fiber to form a first fiber product, providing pressure of at least 300 psi to said first fiber product while it is in the presence of a liquid, and removing said pressure within a time interval which will cause said cellulose fiber to break down into a second fiber product comprising microfibers in said liquid.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: July 4, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Paul Ling Chen, Rongsheng Roger Ruan, Paul Bradley Addis, Li Xu, Lun Yi
  • Patent number: 6083581
    Abstract: A cellulose food casing and process for making a casing of a tubular cellulosic film having an exterior tube surface and an interior tube surface where the exterior surface is coated with (a) at least one protein having an acidic isoelectric point, preferably .beta.-lactoglobulin and (b) at least one cationic thermosetting resin having epoxy groups, such as a resin which is the reaction product of (a) an epichlorohydrin and (b) at least one polyamide, polyamine, polyamine-polyamide or blends thereof, to provide a casing having improved resistance to degradation e.g by enzymes such as cellulase.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: July 4, 2000
    Assignee: Viskase Corporation
    Inventors: Jean-Francois Lacoste-Bourgeacq, Shiu-Chung Jon
  • Patent number: 6071596
    Abstract: Provided is two kind of thermal transfer sheets comprising a substrate and a white transfer layer, the white transfer layer being to be transferred onto an image-formed portion of an image-receiving sheet. In the one kind, white transfer layer includes a white ink layer containing a white pigment and/or a filler, and has a total light transmittance of 30 to 95% and a haze of 30 to 95% due to the white ink layer. In another kind, the white transfer layer includes a white ink layer and a peeling layer, the white ink layer containing a white pigment and/or a filler, the peeling layer laminated between the white ink layer and the substrate, and capable of causing a cohesive failure thereby converting into an irregular surface of a printed material through a transferring process. The present invention also provides printed materials by the using of the thermal transfer sheets described above and recording methods for producing of the printed materials.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: June 6, 2000
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Satoru Kawai, Masayasu Yamazaki, Kenichiro Suto, Katsuyuki Oshima
  • Patent number: 6071580
    Abstract: Disclosed is an absorbent, extruded, open cell thermoplastic foam. The foam has an open cell content of about 50 percent or more and an average cell size of up to about 1.5 millimeters. The foam is capable of absorbing a liquid at about 50 percent or more of its theoretical volume capacity when absorbing a liquid. The foam preferably has an average equivalent pore size of about 5 micrometers or more. The foam preferably has a structure substantially of cell walls and cell struts. Further disclosed is a method for absorbing a liquid employing the foam by elongation of the extrudate of the extrusion die. Further disclosed is a method of enhancing absorbency of an open cell foam by applying a surfactant to an exposed surface of the foam such that it remains at the surface and does not infiltrate a substantial distance into the foam. Further disclosed is a meat tray and a diaper containing the foam.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: June 6, 2000
    Assignee: The Dow Chemical Company
    Inventors: David G. Bland, William G. Stobby, Gene D. Rose, Steve W. Mork, Thomas L. Staples, Gordon D. McCann
  • Patent number: 6054198
    Abstract: A thermally-conductive interface for conductively cooling a heat-generating electronic component having an associated thermal dissipation member such as a heat sink. The interface is formed as a self-supporting layer of a thermally-conductive material which is form-stable at normal room temperature in a first phase and substantially conformable in a second phase to the interface surfaces of the electronic component and thermal dissipation member. The material has a transition temperature from the first phase to the second phase which is within the operating temperature range of the electronic component.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: April 25, 2000
    Assignee: Parker-Hannifin Corporation
    Inventors: Michael H. Bunyan, Miksa de Sorgo
  • Patent number: 6042676
    Abstract: A heat-transfer label suitable for use on silane-treated glass containers, refundable polyethylene terephthalate containers, and the like. According to one embodiment, the label includes a sheet of paper overcoated with a release layer of polyethylene. A skim coat of wax is overcoated onto the polyethylene-coated paper. A protective lacquer layer comprising a polyester, polyester/vinyl or polyester/vinyl with wax lacquer is printed onto the skim coat. An ink design layer comprising one or more polyester inks is printed onto the protective lacquer layer. An adhesive layer comprising a polyester, polyester/vinyl or polyester/vinyl with wax adhesive is printed onto the ink design layer.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: March 28, 2000
    Assignee: Avery Denmson Corporation
    Inventor: Samuel H. Stein
  • Patent number: 6033763
    Abstract: A heat-transfer label suitable for use in decorating polyethylene-coated glass articles. In a preferred embodiment, the label is capable of withstanding pasteurization conditions on a polyethylene-coated glass article and includes (a) a support portion in the form of a sheet of paper overcoated with a release layer of polyethylene, (b) a skim coat of wax overcoated onto the polyethylene release layer and (c) a transfer portion, the transfer portion including a cross-linked phenoxy protective lacquer layer printed onto the skim coat, a polyester ink layer printed onto the protective lacquer layer, a first adhesive layer printed onto the ink layer and onto any exposed portions of the underlying protective lacquer layer, and a second adhesive layer printed onto the first adhesive layer. The cross-linked phenoxy resin comprises a phenoxy resin of the formula ##STR1## wherein phenoxy resin is cross-linked by a melamine formaldehyde resin.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: March 7, 2000
    Assignee: Avery Dennison Corporation
    Inventors: Jean Paul Laprade, James S. Nugent, Darchun Billy Yang
  • Patent number: 6032701
    Abstract: A premoisturized food casing coated with alkali liquid smoke which does not cause color streaking on encased food product and does not cause smoke buildup on food stuffing equipment. Nevertheless, the premoisturized food casing of the invention still provides the same coloring power and flavor to encased food product, as traditional alkali smoke coated premoisturized food casings. The premoisturized tubular cellulose film food casing of the invention has a moisture content of greater than 24 weight percent and a coating of a smoke solution containing smoke tars and having a solution pH of at least 12 and preferably above about 12.5. The moisture content is preferably from 25 to 40 weight percent and most preferably from 25 to 30 weight percent.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: March 7, 2000
    Assignee: Teepak Investments, Inc.
    Inventors: Ronald S. Kearby, John J. Wegman
  • Patent number: 6033698
    Abstract: A fiber-reinforced, tubular food casing based on regenerated cellulose, which is produced using an amount of viscose solution which is decreased by 10 to 30% in comparison with the standard casing at a spinning speed increased by at least 25%.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: March 7, 2000
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Herbert Gord, Gerhard Grolig, Manfred Siebrecht
  • Patent number: 6015601
    Abstract: The present invention relates to a self-sealing flexible plastic valve for a non-latex balloon, to a balloon incorporating such a valve, to a method of manufacturing such a valve, and to a method of manufacturing a balloon incorporating such a valve. The valve is made from two flexible plastic strips, bonded together along the side edges to define a valve passageway or tube, and having an open inlet end and an open outlet end. The inlet end of one or both valve strips flares or otherwise curls outwardly to facilitate opening of the valve to insert a gas supply mechanism to inflate the balloon.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: January 18, 2000
    Assignee: Convertidora Industrial S.A. de C.V.
    Inventor: Arturo Verduzco Garcia
  • Patent number: 5985386
    Abstract: The invention relates to a multi-layer, coextruded, biaxially oriented tubular sausage casing with improved oxygen barrier properties especially for wrapping sausages, which are heat treated after filling.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 16, 1999
    Assignee: Bayer Aktiengesellscaft
    Inventors: Michael Hennig-Cardinal von Widdern, Ulrich Reiners
  • Patent number: 5976649
    Abstract: An improved method is disclosed for the fusing, joining or seaming of cellulosic materials. The method utilizes a hydroxide solution of selected organometallic compounds or metal oxides to rapidly crosslink opposing, overlapping cellulosic surfaces to provide secure seams. In particular, the invention is directed to the production, either on-line or off-line, of tubular cellulosic casings for the manufacture of sausages and sausage-like products. The seams according to this invention have such high shear strength that extremely narrow bond widths are possible. The narrowness of the bond site eliminates or minimizes striping or discoloration of the finished product.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: November 2, 1999
    Assignee: Kraft Foods, Inc.
    Inventors: David F. Kuethe, Vernon D. Karman, Norman C. Abler
  • Patent number: 5962129
    Abstract: The present invention relates to a flame retardant hot melt composition comprising from about 20% to about 60% by weight of the adhesive of at least one copolymer of ethylene, from about 10% to about 50% by weight of the adhesive of a flame retarding hydrated inorganic compound, from about 10% to about 30% by weight of at least one high melting point wax and from about 1% to about 10% by weight of at least one tackifying resin.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: October 5, 1999
    Assignee: H.B Fuller Licensing & Financing, Inc.
    Inventors: Kristine D. Halloran, Cheryl Y. Chase
  • Patent number: 5952064
    Abstract: A tubular film for encasing food. The tubular film comprises a material which has been regenerated from a viscose solution. The tubular material is longitudinally stretched by from +8 to +40 percent and transversely stretched by from -20 to +40 percent while wet and the stretch is maintained during drying, said transverse stretch and longitudinal stretch being sufficient to obtain a surface area increase of at least 10 percent from the point of regeneration. In general, the tubular material has a wall thickness of from about 60 to about 90 percent of the same tubular material except without the combined stretch. The invention also includes the method for making the tubular material by stretching the regenerated tubular material while wet and maintaining the stretch during drying.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: September 14, 1999
    Assignee: Teepak Investments, Inc.
    Inventors: Mark van der Bleek, David Pohl
  • Patent number: 5939156
    Abstract: A package comprising tubular food casing strands encased in a plastic film, said film encompassing said strands, said package being provided with a tear strip secured upon the outside surface of the film; weakened areas being provided in the film along parallel edges of said tear strip so that pulling of said strip away from the package causes film between the weakened areas to be removed with the strip thus opening the package and exposing the strands.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: August 17, 1999
    Assignee: Teepak Investments, Inc.
    Inventors: Scott James Rossi, Douglas Edward Mosiman
  • Patent number: 5932325
    Abstract: A thermal transfer recording material for imparting metallic luster, comprising: a substrate; and at least a layer having metallic luster and optionally an adhesive layer provided in that order on one surface of the substrate, an ink-receptive layer being provided between the layer having metallic luster and the substrate.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: August 3, 1999
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shunichi Ebihara, Keiji Hirose
  • Patent number: 5928738
    Abstract: The invention relates to a biaxially stretch-oriented and heat-set, single-layer or multilayer shirred stick, polyamide-based packaging casing which has a shirring density of up to 1:200, at a length of the shirred stick of from 40 to 100 cm, and to a process for producing the packaging casing.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: July 27, 1999
    Assignee: Kalle Nalo GmbH
    Inventors: Christian Auf Der Heide, Dirk Auf Der Heide, Klaus-Dieter Hammer, Karl Stenger
  • Patent number: 5928739
    Abstract: The present invention relates to an at least single-layer, tubular, biaxially stretched, biodegradable and compostable food casing, in particular a sausage casing, at least one layer consisting substantially of a thermoplastically processable, biodegradable polymer.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: July 27, 1999
    Assignee: Wolff Walsrode AG
    Inventors: Dirk Pophusen, Thomas Gernot, Gunter Weber
  • Patent number: 5928737
    Abstract: Sausage casings of starch which can be processed like a thermoplastic and to processes for the production and use thereof. The sausage casing comprises a thermoplastic starch which is comprised of natural starch which has been converted into an amorphous state.
    Type: Grant
    Filed: October 26, 1995
    Date of Patent: July 27, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Gerhard Grolig, Dieter Beissel
  • Patent number: 5919534
    Abstract: A vented food casing having a plurality of die cut vent openings which are uniform and free-draining so as to provide the casing with a vent rate for air and liquids such as meat juices which is substantially constant around the periphery of the casing. The vent opening being formed by a die cutting operation by drawing flattened casing between rollers, one of which has made punches that mate with female die openings on another roller.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: July 6, 1999
    Assignee: Viskase Corporation
    Inventor: Jeffery Allen Oxley
  • Patent number: 5916644
    Abstract: A method for adhering tubular casing material containing at least 25 weight percent water, during the process of its manufacture, which comprises applying a plurality of beads of a cyanoacrylate adhesive having a viscosity of from 250 to 1000 cps, to a surface of the casing or of a separate film material, and squeezing the casing surface and the film material together to form a bond. The invention also includes bonds and splices made in accordance with the method of the invention.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: June 29, 1999
    Assignee: Teepak Investments, Inc.
    Inventors: William Harold Stanton, Norman Gene Hensley, Ralph Guenter Jerutka
  • Patent number: 5906850
    Abstract: The present application relates to a multilayer film with the layer structure A1 / B1 / A2 / C / D, whereinA1) is a polyamide layer (PA),B1) is a coupling agent layer (HV1),A2) is a polyamide layer (PA),C) is a coupling agent layer (HV2), which optionally consists of 2 layers of different or identical materials,D) is a sealing layer (I) made from a type ionomer,the film is thermoformable and heat sealable and further conventional auxiliary substances and additives may be present in the individual layers.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: May 25, 1999
    Assignee: Wolff Walsrode AG
    Inventors: Andreas S. Gasse, Heinrich Henze-Wethkamp, Rudi Klein
  • Patent number: 5900294
    Abstract: A polyolefinic multilayer film comprises a base layer containing polypropylene and at least one outer layer. The outer layer comprises a C.sub.3 /C.sub.4 -olefin resin composition with a low degree of crystallinity and has a minimum heat-sealing temperature of below 84.degree. C. A process for the production of the multilayer film and the use thereof are also described.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: May 4, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ursula Murschall, Herbert Peiffer, Gunter Schloegl, Thomas Dries
  • Patent number: 5882749
    Abstract: A heat sealed, easy-opening and reclosable package, which comprises a packaging material comprised of a heat sealable base member material, and an elongate, multilayer, flexible, peelable and reclosable strip positioned between the surfaces of juxtaposed portions of base member material and comprised of an interior tacky adhesive layer, a first and second surface sealant layers, the strip including a rupturable layer proximate the tacky adhesive layer. The base member material is heat sealed together along and by means of the strip whereat the sealant layers of the strip are heat sealed to the base member. The heat seal has sufficient initial seal strength to remain closed during handling of the package and yet is manually readily openable and reclosable.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: March 16, 1999
    Assignee: Pechiney Recherche
    Inventors: Gregory K. Jones, Richard M. Ziegert, Gregory J. Seeke, Russell P. Gehrke
  • Patent number: 5882789
    Abstract: A packaging material suitable for forming a heat sealable, easy-opening and reclosable package is comprised of a heat sealable base member material having a first heat sealable surface and, secured to the heat sealable surface, an elongate, heat sealable, multilayer, flexible, peelable and reclosable, preferably coextruded, strip comprised of an interior tacky adhesive layer, first and second sealant layers each comprised of heat sealable polymer, and a rupturable layer, preferably comprised of an ionomer, proximate the tacky adhesive layer. One of the strip sealant layers is secured to the first heat sealable surface of the base member. The strip enables the base member to be heat sealed along and by means of the strip to form a package whose heat seal has sufficient initial seal strength to remain closed during handling and yet can be manually readily opened and reclosed.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: March 16, 1999
    Assignee: Pechiney Recherche
    Inventors: Gregory K. Jones, Richard M. Ziegert
  • Patent number: 5874138
    Abstract: A process for making inflatable tires Puncture Proof.wherein air filled spheres or bubbles (2) are coated with a quick drying glue (10) before being inserted into a mounted, deflated tire, which is then inflated and rotated at high speed to create the centrifugal force needed to disperse spheres (2) evenly while the glue (10) dries and also to balance the wheel (8) without the use of weights.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 23, 1999
    Inventor: Peter J. Fitzpatrick
  • Patent number: 5874137
    Abstract: An improved method is described for the fusing, joining or seaming of cellulosic materials. The method utilizes a solution of selected organometallic compounds or metal oxides to rapidly crosslink opposing, overlapping cellulosic surfaces to provide secure seams. Enhanced seam strength is achieved by a subsequent moisture treatment. The tubular cellulosic casings are well-suited for the manufacture of sausages and sausage-like products. The seams according to this invention have exceptionally high shear strength and wet strength.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: February 23, 1999
    Assignee: Kraft Foods, Inc.
    Inventors: Norman C. Abler, Zbigniew S. Borkiewicz, Donald E. Lucke
  • Patent number: 5866214
    Abstract: A backseamed casing has a casing film comprising a first outer layer and a second outer layer, the first outer layer containing a polyamide having a melting point of from about 250.degree.-400.degree. F., and the second outer layer containing a polyamide having a melting point of from about 250.degree.-400.degree. F. A butt-sealed backseamed casing has a casing film to which a butt-seal tape film is sealed, the casing film having an inside layer containing a polyamide having a melting point of from about 250.degree.-480.degree. F., and an outside layer comprising polyolefin, with the butt-seal tape film comprising polyolefin. A heat-shrinkable film has a first outer layer, a second outer layer, and an inner layer. The first outer layer contains a first polyamide having a melting point of from about 250.degree.-400.degree. F.; and the second outer layer contains a second polyamide having a melting point of from about 250.degree.-480.degree. F.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: February 2, 1999
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Ram K. Ramesh
  • Patent number: 5855231
    Abstract: A casing for forming a rippled meat product includes a generally tubular stockinette fabric integrally knitted with a restrictive structure. The restrictive structure may include one or more helical threads. The differential expansion of the stockinette and the restrictive structure when the casing is stuffed creates a helical bulge in the surface of the meat product. The restrictive structure may include a chain of longitudinal connections that promote a decrease in the longitudinal spacing of the turns of the helical thread in response to the radial expansion of the helical thread during stuffing. Such a restrictive structure also facilitates a method for releasing the casing from the meat product following processing by severing the endmost connection in the chain.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: January 5, 1999
    Inventor: Neil Mintz
  • 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: 5834076
    Abstract: Such has discontinuous areas soaked in a proofing substance, preferably polyvinylidene chloride (PVDC) which is impermeable to both gases and liquids, and thereby on establishing areas representing a logotype, a text, an anagram or any other design with said proofing substance, when the cellulose casing is later filled with the meat emulsion, and the same is smoked or colored through the cellulose casing, the proofing substance will provide a barrier to such later soaking thereby for the smoke or coloring to cross only those areas of the cellulose casing which have not been treated with the proofing substance, that are then colored, providing a background upon which "printed devices" appear that are formally, dimensionally and positionally coincident with those existing on the cellulose casing, when the casing is finally removed, such "printed devices" being duly established upon the sausage proper.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: November 10, 1998
    Assignee: Viscofan, Industria Navarra De Envolturas Celulosicas, S.A.
    Inventors: Marino Diago Ferrero, Juan Jose Gato Pecina
  • Patent number: 5817381
    Abstract: A process and materials are described in which highly refined celleuloise fibers are broken down into microfibers and further processed into compositions, films. coatings and solid materials which are biodegradable and even edible. The process for the formation of hardenable compositions may comprise:providing a composition comprising non-wood cellulose fiber, 36. mechanically reducing the size of the non-wood cellulose fiber to less than 2 mm, reducing the amount of binding of microfibers by lignin within said non-wood cellulose fibers present in said composition comprising cellulose fiber to form a first fiber product, providing pressure of at least 300 psi to said first fiber product while it is in the presence of a liquid, and removing said pressure within a time interval which will cause said cellulose fiber to break down into a second fiber product comprising microfibers in said liquid.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: October 6, 1998
    Assignees: Agricultural Utilization Research Institute, Regents of the University of Minnesota
    Inventors: Ling Chen, Rongsheng Roger Ruan, Jack Edgar Johnson, Paul Bradley Addis, Li Xu, Lun Yi
  • Patent number: 5811162
    Abstract: A food casing based on cellulose hydrate, which is preferably used as a sausage casing, in addition to cellulose hydrate, includes a copolymer having units of methyl vinyl ether and maleic acid and/or alkali metal maleate. It can additionally contain further polymers.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: September 22, 1998
    Assignee: Kalle Nalo GmbH
    Inventors: Klaus-Dieter Hammer, Theo Krams, Martina Koenig
  • Patent number: 5750217
    Abstract: A splice for regenerated cellulose tubular food casing. The splice includes a splicing tape comprising a regenerated cellulose film coated on at least one surface with a polyvinylidene chloride polymer (saran) and having a film thickness of 0.002 to 0.01 inches. The splicing tape is perforated to remove from ten to thirty percent of the area of the film. The removal of material from the splicing tape provides an elongation at break of at least twenty percent at a tensile force of between 500 and 1250 psi in a direction transverse to the direction of the longitudinal axis of the casing. The break force in that direction should be at least 100 psi greater than the force required to obtain the desired elongation. To form the splice, the splicing tape is wrapped around and sealed at the coated surface to a leading end of a first regenerated cellulose tubular food casing and a trailing end of a second regenerated cellulose tubular food casing wherein the ends are proximate each other.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: May 12, 1998
    Assignee: Devro-Teepak, Inc.
    Inventors: Ronald S. Kearby, Mark Lee Fox, Mark David Kelley
  • Patent number: 5747125
    Abstract: A crosslinked cellulose composite film including a regenerated cellulose matrix containing a uniform dispersion of hemp fibers and a poly(ethylene oxide) plasticizer. A method for forming the film includes mixing a slurry of the hemp, poly(ethylene oxide) and a cellulose solvent with a cellulose solution, extruding the mixture, regenerating the cellulose from the solution to form the matrix containing hemp fibers, contacting with a crosslinking agent and then drying.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: May 5, 1998
    Assignee: Viskase Corporation
    Inventor: John Markulin
  • Patent number: 5747124
    Abstract: An at least 4-layer co-extruded, biaxially stretched, tubular seamless casing for sausages to be heated in water and cooking-sausages, having improved tearing properties in the filled state associated with a decreased tendency to burst open when the sausage product is first cut, containing at least two layers composed predominantly of aliphatic polyamide, which form the inner and outer surfaces of the tube, and at least two additional layers, which are enclosed by the inner and outer polyamide layers, with at least one of the enclosed layers acting as a water vapor barrier and having the structure of a polyolefin and at least one other of the enclosed layers acting as an oxygen barrier and consisting mainly of ethylene vinyl alcohol copolymers, the quotient of the tear resistance in the transverse direction to the tear resistance in the longitudinal direction lying between about 0.65 and 0.85, with the degree of surface stretching of the film product being between 8 and 11.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: May 5, 1998
    Assignee: Wolff Walsrode AG
    Inventors: Dirk Pophusen, Michael Hennig Cardinal von Widdern
  • Patent number: 5744246
    Abstract: An oxygen scavenging ribbon comprises a heat sealable resin and an oxygen scavenging material. This ribbon, upon oxidation of the oxygen scavenging material, does not release significant amounts of byproducts which are odorous and/or non-GRAS food additives. This ribbon can be in a number of forms including a multilayer casting or blown film tube. This ribbon provides a great deal of flexibility in the scavenging of oxygen within packaging environments.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: April 28, 1998
    Assignee: Chevron Chemical Company
    Inventor: Ta Yen Ching
  • Patent number: 5736179
    Abstract: A cellulose-based tubular foodstuffs casing having a coating present on its inner and/or outer surfaces, the coating being composed of chitosan chemically linked to the cellulose.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: April 7, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Hammer, Hermann Winter
  • Patent number: 5712007
    Abstract: This invention relates to a tubular casing for location around food products prior to cooking or curing that produce a quilted-like surface pattern to the surface of the food product. The invention comprises a first tubular portion that is knitted in continuous lengths such that the wall of the first tubular portion is stretchable, and circumferential and longitudinal threads secured to the surface of the first tubular portion that become taut as food product is located within the first tubular portion such that a quilted surface pattern is applied to the surface of the product.
    Type: Grant
    Filed: October 31, 1995
    Date of Patent: January 27, 1998
    Inventor: Enrico Mercuri