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Viskase Corporation Patents
Assignee:
Viskase Corporation
Address:
Chicago, IL
No. of patents:
190
Patents:


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Patent Number Title Of Patent Date Issued
H304 Printing ink for use on flexible films July 7, 1987
A low viscosity printing ink composition, based on acrylic terminated urethanes, is made which has a rapid curing rate and forms a cured impression that has a good adherence and flexibility. The ink can be used on flexible films, such as sausage casings, without cracking or bleeding.
H1592 Cellulosic food casing September 3, 1996
Disclosed is a cellulosic food casing made from a nonderivatized cellulose and the various additives that can be incorporated onto or within the casing.
D345907 Food containing package with integral handle April 12, 1994
D292888 Bag dispensing carton November 24, 1987
7001635 Process for improving smoky color of an encased food product February 21, 2006
The present invention relates to a method for enhancing the smoky color and flavor of foodstuffs, such as sausages, produced in casing containing liquid smoke, by exposing the encased foodstuff to a alkaline solution. Peeling of the sausages is also enhanced.
6630214 Improving rewet shrink properties of casing October 7, 2003
Disclosed is a method of forming a seamless, non derivatized cellulose tubular film having enhanced rewet shrinkage properties. The enhanced properties are provided by first drying a hydrated extruded tube of non derivatized cellulose gel at one inflated diameter to form a tubular film.
6565796 Method and apparatus for use in manufacture of cellulose casing May 20, 2003
Disclosed is a method of sizing nonderivatized extruded cellulosic tubes by the use of a mandrel structure that includes a hollow sizing portion having openings which gather gas bubbles that may evolve at the interface between the extruded tube and the sizing portion and allows the gas t
6547999 Cellulose food casing, cellulose composition and production method therefor April 15, 2003
The present invention provides a method of preparing a cellulose solution suitable for extrusion as a seamless tubular film by providing a pulp of substantially open-ended fibrillated softwood fibers having a mean fiber length less than 2.0 mm and then dissolving the pulp in a suitable s
6444161 Mandrel structure for use in manufacture of cellulose food casing September 3, 2002
Disclosed is a mandrel structure for extruding a tube composed of a non derivatized cellulose. The mandrel includes a hollow sizing portion having openings which gather gas bubbles that may evolve at the interface between the extruded tube and the sizing portion and allows the gas to pas
6319457 Method for extruding tubular film November 20, 2001
A method and apparatus is disclosed for lacing an extruded tube of a non derivatized cellulose through an S-wrap to collapse the tube to a flat width. The lacing to form the S-wrap is accomplished without slowing the extrusion speed. At the start of the extrusion operation, the extrusion
6279737 Food casing package and method of preparing August 28, 2001
Disclosed is a package containing a plurality of cut lengths of fibrous casing which are moisturized to substantially soaked levels of moisture and are retained in an evacuated plastic bag wherein the moisture level of the casing is derived from free water added into the bag prior to
6264874 Method of controlling the diameter of a clear extruded tube July 24, 2001
A method and apparatus for controlling the diameter of a clear extruded molten tube wherein the extruded tube contains a volume of a clear liquid and the level of the liquid is indicative of the tube diameter so the level rises as the tube diameter decreases. A light beam passing through
6200510 Method for the contact printing of cellulose food casings March 13, 2001
A method of applying an indicia to the surface of a cellulose casing by non contact printing wherein the indicium is applied in-line with the casing manufacture at a location between the wet end and the dry end of the casing manufacturing process wherein the indicia comprises an ink that
6183826 Colored cellulosic casing with clear corridor February 6, 2001
A sausage casing comprising an elongated cellulosic tube having less than about 100 wt. % moisture based upon the bone dry weight of cellulose and having first and second longitudinal portions, and a colorant or opacifier which is longitudinally and continuously dispersed throughout the
6143344 Bixin colorant compositions November 7, 2000
Bixin containing coloring compositions and self-coloring casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain a dispersion of bixin in a water-soluble and/or alchol-soluble film forming agent, preferably hydroxypropylcellulose, a polypho
6132779 Method for removing cellulosic casings from sausages October 17, 2000
The removal of a cellulosic casing from about a sausage, stuffed and processed in the casing, is accomplished by contacting the casing, either before or after stuffing, with a food grade enzyme, e.g.a. cellulase or cellulase enzyme complex, to metabolize the cellulosic casing on the
6100357 Heat shrinkable very low density polyethylene terpolymer film August 8, 2000
Biaxially stretched, heat shrinkable monolayer and multilayer films comprising very low density polyethylene terpolymers of monomers (a), (b) and (c), where (a) comprises ethylene, (b) comprises a C.sub.6 -C.sub.8 alpha-olefin and (c) comprises 1-butene or 1-hexene, have a very good
6096258 Method and apparatus for forming a cellulose article including solvent recovery means August 1, 2000
A method and apparatus is disclosed for forming a cellulose film suitable for direct food contact by precipitation from a solution of cellulose water and a tertiary amine oxide cellulose solvent. After precipitation of a cellulose gel from the solution, the gel is washed at ever increasi
6083581 Cellulase resistant cellulose casing and process July 4, 2000
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
6051335 Noncircular fiber battery separator and method April 18, 2000
A battery separator of a nonwoven substrate coated on at least one surface with a cellulose film made from a liquid cellulose or cellulose derivative solution with the substrate having at least 50% by wt. noncellulosic fibers having a noncircular cross-sectional perimeter which has a
6045882 Multilayer thin plastic film, useful for shrink overwrap packaging April 4, 2000
A multilayer, biaxially stretched, flexible, hermoplastic film having at least three (preferably five) layers (a), (b), and (c) with layer (b) disposed between layers (a) and (c), layers (a) and (c) each being a blend of at least 45% of a copolymer of ethylene and at least one C.sub.3
6045848 Process for making sausages using casing having adjacent optically different portions April 4, 2000
A process for making small diameter skinless sausages using casing comprising an elongated tube having first and second longitudinal portions, wherein a colorant or opacifier is longitudinally and continuously dispersed throughout the wall of at least one of these portions to provide
6042853 Method for removing cellulosic casings from sausages March 28, 2000
The removal of a cellulosic casing from about a sausage stuffed and processed in the casing is accomplished by contacting the sausage with a cellulase or cellulase enzyme complex to metabolize the cellulosic casing on the sausage thereby producing a substantially casing-free sausage.
6004599 Bag for packaging bone-in cuts of meat December 21, 1999
Disclosed is a bag arrangement and packaging method for packaging bone-in cuts of meat using two bags to provide a double wall of film surrounding the cut of meat for bone puncture resistance. Both bags are bottom sealed bags formed of a heat shrink film, the inner bag has an interrupted
5962053 Edible film and method October 5, 1999
Described is an edible, water insoluble film which is a blend of polysaccharide and protein and, in particular, a ternary blend of konjac flour as a major constituent, agar and gelatin. Also, described is a method of forming the film including a deacetylating step to insolubilize the
5955126 Self-coloring food casing September 21, 1999
Bixin containing coloring compositions and self-coloring casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain bixin, a water-soluble film forming agent, preferably hydroxypropylcellulose, a polyphosphate and optionally an antioxidant.
5942354 Reduced curl battery separator and method August 24, 1999
A curl resistant battery separator of a noncellulosic nonwoven substrate extrusion coated on at least one surface with a cellulose film and process for making such separator by contacting a nonwoven noncellulosic textile substrate with a cellulose or cellulose derivative solution on at l
5942167 Method of making a cellulose food casing including solvent recovery August 24, 1999
Disclosed is a method of extruding a solution of cellulose and an amine oxide cellulose solvent as a tube about a sizing mandrel which diametrically stretches the extruded tube. An aqueous poly(ethylene oxide) solution is introduced into the interior of the extruded tube to facilitat
5928740 Thermoplastic C.sub.2 -.alpha.-olefin copolymer blends and films July 27, 1999
A polymer blend and mono-and multilayer films made therefrom having improved properties such as heat sealing or puncture resistance wherein the blend has a first polymer of ethylene and at least one .alpha.-olefin having a polymer melting point between 55 to 75.degree. C.; a second p
5919534 Perforated food casings and method July 6, 1999
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
5766540 Cellulose food casing manufacturing method June 16, 1998
The tubular extrusion of a thermoplastic nonderivatized cellulose solution about a mandrel and through a long air gap in excess of 304 mm is facilitated by use of a mandrel which is extensible from the extrusion die. On extrusion start-up, the mandrel extends a short length from the
5759648 Multilayer plastic film, useful for packaging a cook-in foodstuff June 2, 1998
A multilayer, preferably biaxially oriented, film suitable for processing and/or packaging cook-in foods such as ham, roast beef and poultry having an excellent combination of oxygen barrier, heat seal and optical properties comprising at least five essential sequential layers with a
5759478 Mandrel structure for use in manufacture of cellulose food casing June 2, 1998
The tubular extrusion of a thermoplastic nonderivatized cellulose solution about a mandrel and through a long air gap in excess of 304 mm is facilitated by use of a mandrel which is extensible from the extrusion die. On extrusion start-up, the mandrel extends a short length from the
5747125 Fibrous composite cellulosic film and method May 5, 1998
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 c
5744251 Cellulosic composition and article April 28, 1998
The present invention relates to compounded fibrous dope compositions of amine oxide cellulose solutions having a uniformly dispersed second fibrous material, methods of producing the compositions, and shaped articles such as fibers, paper, films, and food casings produced from the c
5702783 Food casing of nonderivatized cellulose December 30, 1997
A cellulose food casing comprising a nonderivatized cellulose film precipitated in tubular form from an extruded thermoplastic solution of cellulose, an amine oxide cellulose solvent and water.
5698279 Heat shrinkable nylon food casing having a functionalized ethylenic polymer core layer December 16, 1997
Tubular, biaxially stretched, heat shrinkable multilayer film food casings comprising inner and outer polyamide layers on either side of a core layer predominantly of one or more ethylenic polymers having a functional moiety selected from the group of esters, anhydrides, and carboxylic a
5695800 Method of preparing a food product encased in a glucomannan film December 9, 1997
Disclosed is a food product encased in a water insoluble film of glucomannan and a method for its manufacture. In the process an aqueous solution of glucomannan is cast onto the food product surface and then is deacetylated and coagulated in sire by contact with a saturated salt solu
5658525 Cellulose food casing manufacturing method August 19, 1997
In a method for forming a cellulose tube suitable for use as a food casing, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through a die gap and the extruded tube is downwardly drawn through an air gap while being internally cooled and then
5658524 Cellulose article manufacturing method August 19, 1997
In a method for forming a cellulose tube suitable for use as a food casing or as cellophane film, in which a solution of nonderivatized cellulose, tertiary amine N-oxide and water is extruded through an air gap of at least five inches, and into a water bath, such that a wet cellulose tub
5635261 Thermoplastic film incorporating high melt index resins June 3, 1997
A biaxially stretched, heat sealable, thermoplastic, flexible, food packaging film, preferably multilayer, having an outer heat sealable layer comprising an ethylene vinyl ester copolymer, preferably a blend of two different EVA copolymers wherein said heat sealing layer (which is pr
5632843 Method of making a multilayer biaxially stretched film and heat shrunk meat-containing bag May 27, 1997
A heat-shrinkable, multilayer film suitable for use in fabricating bags for packaging primal and sub-primal meat cuts and processed meats. The multilayer film has a first outer layer of a first ethylene-vinyl acetate copolymer, a core layer of a barrier film comprising a polyvinylidene
5614297 Polyolefin stretch film March 25, 1997
A polyolefin blown or slot cast monolayer or multilayer stretch film useful as a trayed overwrap e.g. for fresh red meat includes at least three layers in the multilayer embodiment each of which contains an ethylene alpha-olefin copolymer having a density below 0.915 g/cm.sup.3 and havin
5603884 Reinforced cellulosic film February 18, 1997
Disclosed is a method of preparing an extruded cellulosic film which contains a uniform dispersion of hemp fibers by first adding the fibers to an amine oxide cellulose solvent to form a slurry, mixing the slurry with a molten aqueous solution of cellulose and amine oxide cellulose solve
5597587 Apparatus for the manufacture of cellulose food casing January 28, 1997
An apparatus to manufacture a cellulose food casing including a nonderivatized cellulose film precipitated in tubular form from an extruded thermoplastic solution of cellulose and an amine oxide cellulose solvent.
5593747 Puncture resistant heat shrinkable film containing narrow molecular weight ethylene alpha olefin January 14, 1997
A biaxially stretched film with very high heat shrink and puncture resistance properties, formed of an ethylene alpha olefin copolymer having a density between about 0.88-0.905 g/m.sup.3, a low melt index not exceeding about 1.5 g/min, a Mw/Mn not exceeding about 3, and having a melt
5573801 Surface treatment of foodstuffs with antimicrobial compositions November 12, 1996
An antimicrobial composition comprising a Streptococcus-derived or Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film (with or wi
5573800 Antimicrobial composition for surface treatment of foodstuffs November 12, 1996
An antimicrobial composition comprising a Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film (with or without the chelating agent
5573797 Film and method for surface treatment of foodstuffs with antimicrobial compositions November 12, 1996
An antimicrobial composition comprising a Streptococcus-derived or Pediococcus-derived bacteriocin or synthetic equivalent antibacterial agent in combination with a chelating agent. Such composition may be used in conjunction with a foodstuff or with a food packaging film.(with or wi
5549943 Heat shrinkable nylon food casing with a polyolefin core layer August 27, 1996
Tubular, biaxially stretched, heat shrinkable multilayer film food casings comprising inner and outer polyamide layers on either side of a core layer predominantly of one or more polyolefins such as VLDPE or EVA and a coextrusion process for making the film.
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