Wax Containing Patents (Class 428/348)
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Patent number: 5256458Abstract: A shirred tubular thermoplastic casing article of an ethylene polymer film with a substantially mineral oil-free liquid lubricating coating on the outside surface of the casing, and in contact with the ethylene polymer film, with preferred coatings being polyhydric alcohols such as 1, 2 propylene glycol or glycerine in water, or an aqueous dispersion of lecithin, and a method of manufacturing the article and method for making a processed foodstuff using the article.Type: GrantFiled: September 18, 1990Date of Patent: October 26, 1993Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Darrel L. Wilhoit
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Patent number: 5246750Abstract: A method for making a fabric coated with acrylic resin and adaptable to use as a wrap for food products such as cheese or sausage, which comprises embedding a textile material of relatively low strength, such as a knitted fabric, scrim, or lightweight nonwoven fabric, in a coating layer of acrylic resin having thermoplastic properties, and for making a food wrap by cutting a blank therefor from such coated fabric, which blank is shaped into a wrap by heat sealing; fabrics and wraps made by such a method.Type: GrantFiled: March 9, 1992Date of Patent: September 21, 1993Assignee: Rohm GmbHInventors: Horst Dinklage, Hans-Peter Wolf
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Patent number: 5236726Abstract: A method of processing cellulose sausage skins is disclosed in which sausage skins are filled with contents to make sausages, the cellulose sausage skins are removed from the sausages, the removed sausage skins are dissolved to form a recycled cellulose dope, and new sausage skins are formed from the recycled cellulose dope. Dissolving sausage skins under soda cellulose Q condition for subsequent reuse is specifically described. In addition, forming a dissolved cellulose feed stock for use in producing sausage skins employing cavitation and a solvent is disclosed.Type: GrantFiled: January 24, 1992Date of Patent: August 17, 1993Assignee: Weyerhaeuser CompanyInventor: E. Peter Lancaster
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Patent number: 5230933Abstract: Acid resistant peeling aid compositions and casings, particularly tubular cellulosic food casings, coated therewith, which compositions contain a water-soluble cellulose ether, dextrin and optionally lecithin.Type: GrantFiled: July 11, 1990Date of Patent: July 27, 1993Assignee: Viskase CorporationInventors: Patrick B. Apfeld, Frederick M. Merritt, II
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Patent number: 5229506Abstract: An improvement to the process for synthesizing cellulose aminomethanate is disclosed which comprises slurring cellulose in low concentrations of aqueous caustic solutions, in the presence of urea, and steeping the slurried mixture, at from about 2.degree. C. to about -15.degree. C., for a time sufficient to permit swelling of the cellulose and uniform distribution of the urea. Cellulose aminomethanate manufactured from product prepared in accord with this process, has a uniform distribution of aminomethanate throughout the cellulose at the molecular level and comprises a suitable product for manufacturing sausage casing.Type: GrantFiled: June 12, 1989Date of Patent: July 20, 1993Assignee: Teepak, Inc.Inventors: Matiur Rahman, Douglas J. Bridgeford
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Patent number: 5219002Abstract: A multi-layered tubular synthetic sausage casing which includes an outer polyamide layer, an inner polyolefin layer and an intermediate layer for mutually bonding the inner and outer layers. The inner polyolefin layer includes a copolymer comprised of units of ethylene, propylene or straight-chain alpha-olefins having 4 to 8 carbon atoms, or of a mixture of these copolymers. In a preferred embodiment, the polyolefin layer is comprised of an ethylene/propylene/butylene terpolymer and/or of a propylene/butylene copolymer.Type: GrantFiled: January 17, 1991Date of Patent: June 15, 1993Assignee: Hoechst AktiengesellschaftInventors: Karl Stenger, Guenther Crass, Dieter Beissel
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Patent number: 5215125Abstract: A cellulose fiber mat sized with cellulose aminomethanate. The fiber mat is desirably an abaca fiber mat and the mat may be used as a reinforcement in products such as food casings, e.g., a sausage casing. Such a food casing comprises such a sized mat impregnated with additional cured resinous material. Such additional resinous material is desirably a cured viscose such as xanthate or cellulose aminomethanate viscose.Type: GrantFiled: January 26, 1989Date of Patent: June 1, 1993Assignee: Teepak, Inc.Inventors: Douglas J. Bridgeford, Matiur Rahman
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Patent number: 5207609Abstract: Cellulosic food casing uniformly impregnated with an acid and a buffering agent renders the casing peelable from the denatured frozen outer skin of an encased raw pork-containing product.Type: GrantFiled: March 12, 1992Date of Patent: May 4, 1993Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Jerome J. M. Rasmussen, James E. Draper, Thomas J. Mann, Brian R. Samuels
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Patent number: 5207608Abstract: Cellulosic food casing uniformly impregnated with an acid and a buffering agent renders the casing peelable from the denatured frozen outer skin of an encased raw pork-containing product.Type: GrantFiled: March 12, 1992Date of Patent: May 4, 1993Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Jerome J. M. Rasmussen, James E. Draper, Thomas J. Mann, Brian R. Samuels
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Patent number: 5199465Abstract: Tubular packing casing having improved peelability including a coating comprising a protein coagulant and a polyvinyl alcohol on its inner surface.Type: GrantFiled: December 6, 1989Date of Patent: April 6, 1993Assignee: Wolff Walsrode AktiengesellschaftInventor: Michael Stiem
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Patent number: 5198292Abstract: A cleaning cloth is formed by treating a fibrous material with a composition to which solid particles adhere. The composition includes a tackifier, a pressure-sensitive adhesive and a slip agent. The tackifier is 45-77 wt. %, the pressure-sensitive adhesive is 20-40 wt. % and the slip agent is 3-15 wt. % of the composition. Other ingredients, such an antifoam agent and a pH control, can also be added. The tackifier is an unsaturated, low-molecular-weight resin having low vapor pressure and a molecular weight of<30,000, e.g., polybutene, polyisobutylene, polyhexene or an unsaturated alkyl. The preferred tackifier is polybutene. The pressure-sensitive adhesive is acrylic, styrene butadiene rubber, vinyl acetate or other suitable pressure-sensitive compounds. The slip agent is a high-melting-point wax or a natural fatty acid ester. The preferred slip agent is ammonium stearate.Type: GrantFiled: May 8, 1992Date of Patent: March 30, 1993Assignee: International Paper CompanyInventors: Peter Lerner, Dennis Metrick
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Patent number: 5198293Abstract: A non-woven cleaning cloth preferably made by the hydro-entanglement process and impregnated with a pressure sensitive adhesive and a tackifier. This Abstract shall not be construed to limit the scope of the invention, as defined by the claims, or of the specification.Type: GrantFiled: July 27, 1990Date of Patent: March 30, 1993Assignee: International Paper CompanyInventor: Dennis Metrick
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Patent number: 5185189Abstract: A polyamide-based multilayered tubular packaging casing for pasty matter, in particular a synthetic sausage casing, is disclosed having an outer layer comprised of aliphatic polyamide, aliphatic copolyamide or a polymer blend comprising at least one of these compounds, an intermediate layer that is impermeable to water vapor and comprised of a polyolefin and an adhesion-promoting agent, and an inner layer that is preferably impermeable to oxygen and comprised of aliphatic and/or partially aromatic polyamides and/or aliphatic and/or partially aromatic copolyamides.Type: GrantFiled: May 28, 1991Date of Patent: February 9, 1993Assignee: Hoechst AktiengesellschaftInventors: Karl Stenger, Marliese Saal
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Patent number: 5155160Abstract: The barrier properties of crystalline polyolefin film can be improved substantially by incorporating a precise amount of a partially incompatible wax into the polyolefin. When the polyolefin is polypropylene or polybutylene, the wax is preferably a paraffin wax. The precise amount of wax, which produces optimum improvement in barrier properties, lies in the range of about 3 to 10 percent based on the weight of the polyolefin. The range in which excellent results are obtained can be broadened by contacting the film with a cooling medium immediately after it is extruded. The film may be annealed to further improve the barrier properties.Type: GrantFiled: July 10, 1990Date of Patent: October 13, 1992Assignee: James River II, Inc.Inventors: Gene H. Yeh, Attila Matray, Allyn J. Ziegenhagen
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Patent number: 5147932Abstract: The addition of a polyolefin-acrylic graft copolymer to blends of polyolefin and core-shell polymers improves compatibility and allows core-shell polymers to be used as processing and performance modifiers polyolefins. Generally the compatibilizing additive is a graft copolymer of a polyolefin and a metharcylate. More specifically, the graft copolymer is derived from at least about 80% of a monomer of a methacrylic ester of the formula CH.sub.2 .dbd.C(CH.sub.3)COOR, where R may be alkyl, aryl, or aralkyl, substituted or unsubstituted, and less than 20%, based on a total monomer weight, of an acrylic or styrenic monomer copolymerizable with the methacrylic ester grafted on to a non-polar polyolefin trunk, so that at least one chain is a polymer with a weight average molecular weight greater than about 20,000 and is present in a weight ratio with the polyolefin trunk of from about 1:9 to about 4:1.Type: GrantFiled: January 31, 1992Date of Patent: September 15, 1992Assignee: Rohm and Haas CompanyInventors: Casmir S. Ilenda, David L. Dunkelberger, Dennis J. Labanoski
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Patent number: 5141801Abstract: The barrier properties of a coextruded film having a surface layer comprising a crystalline polyolefin can be improved substantially by incorporating a precise amount of a partially incompatible wax into the polyolefin. The film has an interior layer comprising a polymer that prevents migration of the wax to the other surface of the film so that wax does not interfere with the printability or heat sealability of the other surface. The wax-containing polyolefin layer also protects the interior layer from adverse effects of moisture, such as when the interior layer comprises EVOH. An interior layer of EVOH may be sandwiched between wax-containing polyolefin layers to fully protect it from moisture.Type: GrantFiled: November 3, 1989Date of Patent: August 25, 1992Assignee: James River II, Inc.Inventors: Kenneth Takeshita, Attila Matray
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Patent number: 5139805Abstract: A multi-ply, heat-shrinkable film has a surface layer for contact with a cooked or processed meat product which is formed of an ethylene-ethyl acrylate-maleic anhydride copolymer or a mixture of the ethylene-ethyl acrylate-maleic anhydride copolymer and a polyolefin, with the content of ethyl acrylate component in the surface layer being 2 to 20% by weight and the content of maleic anhydride component being 1 to 5% by weight. A cooked or processed meat product may be packaged with the multi-ply, heat-shrinkable film and formed according to "zero-loss cooking method".Type: GrantFiled: June 11, 1990Date of Patent: August 18, 1992Assignee: Okura Industrial Co., Ltd.Inventors: Teruo Tada, Nobuya Ishiguro, Kazuo Kondoh
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Patent number: 5108804Abstract: Cellulosic food casing uniformly impregnated with an acid and a buffering agent renders the casing peelable from the denatured frozen outer skin of an encased raw pork-containing product.Type: GrantFiled: October 13, 1989Date of Patent: April 28, 1992Assignee: Viskase CorporationInventors: Jeffery A. Oxley, Jerome J. M. Rasmussen, James E. Draper, Thomas J. Mann, Brian R. Samuels
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Patent number: 5096754Abstract: A film, preferably used as a tubular artificial sausage casing, having a base layer of a material which may be fiber-reinforced, wherein the material includes a mixture of cellulose hydrate and alginic acid and/or alginate. The alginate may be the calcium salt of alginic acid. In addition, a process for producing the film by the viscose process is also described, wherein a mixture of alkaline viscose solution and a soluble salt of alginic acid is coagulated by means of an acidic precipitating fluid.Type: GrantFiled: June 4, 1990Date of Patent: March 17, 1992Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Hermann Winter
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Patent number: 5084310Abstract: Disclosed herein is a smoked food-package produced by packaging a foodstuff with a smokable packaging material and smoking the packaged foodstuff wherein the smokable packaging material comprises at least one layer of a mixture of 5 to 60% by weight of vinylidene chloride resin and 95 to 40% by weight of polyamide, said smokable packaging material having a practical smokability, high oxygen barrier property and high water vapor barrier property, and a smoking process.Type: GrantFiled: March 27, 1990Date of Patent: January 28, 1992Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyaki Hisazumi, Tsutomu Uehara, Hiroyuki Ohba, Kazuhiko Hirose
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Patent number: 5063104Abstract: A bonded porous sheet material for use in the manufacture of food casing, said material being produced by treating a fibrous web with a thermoplastic film forming material which bonds the fibers of the web and imparts high alkaline strength to the treated wet and subsequently treating the bonded fiber web with a solution of film forming material and an insolubilizing agent for the film forming material.Type: GrantFiled: January 3, 1990Date of Patent: November 5, 1991Assignee: The Dexter CorporationInventors: Diane M. Robertson, Ludmila Byalik
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Patent number: 5047253Abstract: A flexible multilayer film tube has an inner layer comprising a blend of thermoplastic polymer and starch particles in protruding relationship with the inside surface which, after oxidation, develops improved meat adhesion during in situ cooking.Type: GrantFiled: March 5, 1990Date of Patent: September 10, 1991Assignee: Viskase CorporationInventors: Roger L. Juhl, Jeffrey M. Schuetz
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Patent number: 5043194Abstract: The tubular packaging casing, in particular artificial sausage casing, based on cellulose contains a textile sheet-shaped structure which is surrounded by cellulose and gives the outside of the casing a sturdy texture.Type: GrantFiled: July 27, 1989Date of Patent: August 27, 1991Assignee: Hoechst AktiengesellschaftInventors: Manfred Siebrecht, Klaus-Dieter Hammer
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Patent number: 5038832Abstract: Flexible tubular cellulosic food casing shirred and compressed onto a rigid hollow tubular core to a high compaction condition to produce a casing stick with additional stuffing length capacity, enhanced structural stability and strength, and larger stuffing horn adaptability.Type: GrantFiled: August 2, 1985Date of Patent: August 13, 1991Assignee: Viskase CorporationInventors: George H. Mahoney, John H. Beckman, Arthur L. Sheridan
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Patent number: 5037683Abstract: A multilayer laminated film useful in chub packaging comprises a core film comprising a biaxially oriented film, and an outer hot blown film bonded to each of the opposing surfaces of the core layer, at least one of the films including a layer of an oxygen barrier polymeric material.Type: GrantFiled: September 26, 1988Date of Patent: August 6, 1991Assignee: W. R. Grace & Co.-Conn.Inventor: Henry G. Schirmer
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Patent number: 5034251Abstract: A dimensionally heat-recoverable article carrying a heat curable adhesive coating on a surface thereof, the adhesive coating comprising (a) a mixture of substantially solid particles of a first reactive component with separate substantially solid particles of at least a second reactive component and (b) a water soluble polymeric binder having substantially no hydroxyl groups, the first and second reactive components being present in the adhesive coating as substantially unreacted separate particles capable of reacting together to effect curing when the article is heated to its heat recovery temperature.Type: GrantFiled: April 12, 1990Date of Patent: July 23, 1991Assignee: Raychem LimitedInventors: Michael J. Read, Michael R. Read, Stephen J. Osborne, Geoffrey P. Hakes
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Patent number: 5030486Abstract: A processable food package comprising a casing filled with water moisture-containing processable food. The latter's outside surface is in direct contact with the casing inner surface which contains an indicia substantially completely transferable to the food outer surface during processing. The indicia comprises an aluminum-organic dye lake and a binder-carrier dispersed therein which bonds the lake to the casing inner surface in a moisture insensitive manner.Type: GrantFiled: February 1, 1990Date of Patent: July 9, 1991Assignee: Viskase CorporationInventors: Alvin S. Huang, Myron D. Nicholson, Rama Ramagopal
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Patent number: 5027863Abstract: An article and method for use in making stuffed food products with at least one flat end has a plurality of annular discs connected one to another by a long tubular membrane which passes through the central opening in each disc. The membrane is transversely circumferentially perforated between each disc and stuffing pressures cause the tubular membrane to longitudinally extend and tear at the preforations so that discs can be longitudinally separated and introduced one at a time into the stuffed food product for flattening an end of the product.Type: GrantFiled: July 18, 1989Date of Patent: July 2, 1991Assignee: Viskase CorporationInventor: Vytautas Kupcikevicius
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Patent number: 5023138Abstract: A silicone release paper comprises a porous and highly absorbent paper substrate integrated with a radiation-insensitive hardened hot melt barrier coating, upon which coating a radiation-cured silicone coating layer has been secured. The barrier coating is formed of a material having a viscosity sufficiently low that the material permeates the porous paper substrate. A pressure-sensitive adhesive may be provided on the side of the paper opposite to that on which the silicone coating layer has been secured.Type: GrantFiled: May 19, 1989Date of Patent: June 11, 1991Assignee: Acumeter Laboratories, Inc.Inventor: Frederic S. McIntyre
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Patent number: 4975309Abstract: A curved, tubular packing casing of unreinforced cellulose having non-uniform wall thickness in cross-section is disclosed. The area of minimum wall thickness lies opposite the area of maximum wall thickness and is situated in the area of the greater, outer radius of curvature. The maximum wall thickness lies in the range from about 50 to 160 .mu.m, and the minimum wall thickness lies in the range from about 10 to 50 .mu.m. The maximum wall thickness is 50 to 800% greater than the minimum wall thickness.Type: GrantFiled: April 18, 1989Date of Patent: December 4, 1990Assignee: Hoechst AktiengesellschaftInventors: Herbert Gord, Hoang Pho Tu, Manfred Siebrecht, Reinhold Becker
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Patent number: 4967798Abstract: The tubular packaging casing, in particular a synthetic sausage casing, comprised of fiber-reinforced cellulose, in which the fiber-reinforcement is coated at least on the outside with a cellulose layer, and a surface layer on the cellulose layer. The surface layer comprises a water-insoluble cationic resin containing particles of fibers of synthetic resin or cellulose, in particular particles of a vinyl chloride homopolymer or copolymer.Type: GrantFiled: March 19, 1990Date of Patent: November 6, 1990Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Hermann Winter, Gerhard Krag
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Patent number: 4952431Abstract: A new bonding agent for fibrous substrates used to reinforce food casing is formulated by dissolving cellulose carbamate and an alkaline curing resin in a dilute caustic solution in such a manner that the ratio of carbamate to resin is greater than 1:1 by weight. The preferred resin is a polymeric reaction product of epichlorohydrin and a polyamide. The bonded substrate contains up to 10% by weight of the bonding agent and exhibits a porosity that is not significantly less than that of the base web and a caustic tensile strength greater than 300 grams per 25 millimeters. Casings made from the substrate can use the casing films employed heretofore or a carbamate-resin film formulation.Type: GrantFiled: April 13, 1989Date of Patent: August 28, 1990Assignee: The Dexter CorporationInventors: Diane M. Robertson, Ronald H. Pomeroy, Alan W. Meierhoefer
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Patent number: 4944970Abstract: A tubular, biaxially stretch-oriented packaging film, in particular a sausage casing, comprising a polymer mixture which comprises an aliphatic polyamide, a polyterephthalic acid ester, an aromatic polyamide comprising branched aliphatic diamines having at least 7 carbon atoms and aromatic dicarboxylic acids, or aromatic diamines and aliphatic dicarboxylic acids having 5 to 11 carbon atoms and a dye. The weight amount of the aromatic polyamide is preferably equal to, and particularly preferably greater than, the weight amount of dye. A masterbatch suitable for producing the film is also disclosed. With particular advantage, the film having the above described composition can be dyed deep black or brilliant red.Type: GrantFiled: January 18, 1989Date of Patent: July 31, 1990Assignee: Hoechst AktiengesellschaftInventors: Karl Stenger, Hans Strutzel, Guenther Crass
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Patent number: 4940614Abstract: A tubular food casing comprising a film which has been bent to form a tubing, the longitudinal edges of which are joined to one another by means of an adhesive tape, which forms a glued seam. The adhesive tape comprises a plurality of incisions, ending in the area of the glued seam, which extend transversely to its longitudinal direction. In the area of the incision ends, the adhesive tape is firmly bonded to the film. The bond strength between the adhesive tape and the film is greater than the tear resistance of the film.Type: GrantFiled: April 10, 1989Date of Patent: July 10, 1990Assignee: Hoechst AktiengesellschaftInventors: Erna Kastl, Marion Mathieu, Anton Goerres
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Patent number: 4940615Abstract: The tubular foodstuff casing, in particular the synthetic sausage casing, made of cellulose hydrate comprises an external covering or impregnation comprising a fungicidal heterocyclic compound, in particular a benzimidazole or isothiazolone derivative substituted in the 2-position, which can be used, if desired, in admixture with glycerol monolaurate. The coating prevents infestation of the casing by molds, in particualr when it is stored in the moist state.Type: GrantFiled: February 21, 1989Date of Patent: July 10, 1990Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Hermann Winter
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Patent number: 4937138Abstract: A hot melt adhesive, a laminar structure, and non-woven article fabricated from a blend comprising:from about 50 percent by weight to about 5 percent by weight of a butene-1 homopolymer or copolymer;from about 50 percent by weight to about 95 percent by weight of a tackifying resin;from a 0.01 to about 1 phr of a nucleating agent;up to about 1 part per hundred (phr) of a stabilizer;up to about 30 phr of a plasticizer; andup to about 30 phr of a wax.Type: GrantFiled: February 29, 1988Date of Patent: June 26, 1990Assignee: Shell Oil CompanyInventor: Simon Mostert
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Patent number: 4935270Abstract: A dimensionally heat-recoverable article has on one of its surfaces a heat-curable adhesive coating. The coating has a mixture of substantially solid particles of a first reactive component with separate substantially solid particles of at least a second reactive component, the first and second components being capable of reacting together to effect curing of the coating when the heat-recoverable article is heated to its recovery temperature. The particles have a size distribution in which not more than 40% by weight of the particles are less than 50 micrometers in size and at least 90% by weight of the particles are less than 300 micrometers in size.Type: GrantFiled: March 2, 1989Date of Patent: June 19, 1990Assignee: Raychem LimitedInventors: Michael J. Read, Michael R. Read, Stephen J. Osborne, Geoffrey P. Hakes
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Patent number: 4935294Abstract: A composite sheet material which yields under non-uniform pressures caused by irregularities of contact between two relatively hard surfaces adapted to provide a more uniform pressure distribution comprising the combination of relatively small granules and relatively small stiff fibers in a matrix of waxy material adhered to a web of flexible material.Type: GrantFiled: November 17, 1988Date of Patent: June 19, 1990Assignee: Colgate-Palmolive CompanyInventors: Kenneth W. Misevich, Roy R. McGregor
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Patent number: 4933217Abstract: An aqueous natural liquid smoke impregnated food casing suitable for imparting smoke color to food products processed therein and method for making the same using an aqueous natural liquid smoke which is neutralized to a pH between about 5-9 to precipitate tar materials which are removed prior to impregnation.Type: GrantFiled: October 24, 1986Date of Patent: June 12, 1990Assignee: Viskase CorporationInventor: Herman S. Chiu
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Patent number: 4931333Abstract: A reusable thermal packaging assembly comprises a plurality of capsules each having a flexible outer skin containing a thermal controlling agent which can maintain a predetermined temperature range for an extended period of time. The capsules are packed around one or more items which are to be maintained in a controlled temperature environment over an extended period, and are designed also to provide cushioning of the or each item against shocks. The capsules may be used with a suitable insulated container or may be provided in a continuous sheet in bubble pack form to be wrapped around items to be packed.Type: GrantFiled: September 9, 1988Date of Patent: June 5, 1990Inventor: D. Lindley Henry
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Patent number: 4930545Abstract: Described is a tubular artificial sausage casing based on fiber-reinforced cellulose which shows, in the completely soaked state as compared to the state prior to soaking in water, an increase in length of from about 0.8 to 2.5% and a transverse shrinkage of from about 2.5 to 5.2%. Preferably, the change of diameter of the casing at the same change of pressure in the range above 20 kPa is approximately equal for the completely soaked state and for a moisture content of from about 22 to 27% by weight. In a preferred embodiment, the sausage casing can be filled with sausage meat without being previously soaked in water and, for this purpose, has a moisture content of from about 22 to 27% by weight and a glycerol content of from about 17 to 20% by weight, in each case based on its total weight, and is provided with a fungicide on its outside surface.Type: GrantFiled: May 20, 1987Date of Patent: June 5, 1990Assignee: Hoechst AktiengesellschaftInventors: Klaus-Dieter Hammer, Hermann Winter, Rolf Buettner
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Patent number: 4927689Abstract: A gas barrier structure is disclosed which comprises a base synthetic thermoplastic polymeric layer, e.g. nylon, polyethylene, having two coatings on one side of the base layer. The first coating is a solvent-based urethane primer and the second coating comprises a polyvinyl alcohol gas barrier material. The primer is present in the range of 0.3 to 3.0 g/m.sup.2 and the polyvinyl alcohol is present in an amount of up to 2.0 g/m.sup.2. The polyvinyl alcohol is deposited from solution or dispersion.Type: GrantFiled: July 7, 1987Date of Patent: May 22, 1990Assignee: Du pont Canada Inc.Inventor: Stan J. Markiewicz
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Patent number: 4917924Abstract: An article comprising a substrate such as cellulose casing, having thereon a desired indicia such as grill marks or a corporate logo. The indicia comprises an aluminum-organic dye lake and a binder-carrier, with the lake dispersed in the binder-carrier and bonded to the substrate by the binder-carrier in a moisture insensitive manner to form the indicia. The organic dye may for example be an FD&C color and the binder-carrier may for example be zein or shellac. The indicia is substantially completely transferable from the substrate to a contiguous edible surface in the presence of water. The food surface may for example be frankfurter and the transfer may for example take place during elevated temperature processing of the frankfurter emulsion in the cellulose casing.Type: GrantFiled: December 16, 1988Date of Patent: April 17, 1990Assignee: Viskase CorporationInventors: Alvin S. Huang, Myron D. Nicholson, Rama Ramagopal
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Patent number: 4916000Abstract: The present invention provides an improved composite which comprises one or more layers, at least one of said layers comprising network of high strength filaments having a tensile modulus of at least about 160 grams/denier, a tenacity of at least about 7 g/denier and an energy-to-break of at least about 8 joules/gram in a matrix material, the ratio of the thickness of said layer to the equivalent diameter of said filaments is equal to or less than about 12.8, and complex composite articles formed from said composite.Type: GrantFiled: July 13, 1987Date of Patent: April 10, 1990Assignee: Allied-Signal Inc.Inventors: Hsin L. Li, Dusan C. Prevorsek, Gary A. Harpell, Young D. Kwon
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Patent number: 4915963Abstract: A cooked meat product is prepared using a tube of multilayer film comprising at least three layers including an inner layer with an inner surface, the latter comprising EVA with starch particles dispersed across the inner surface and integral therewith, the starch particle-containing EVA layer being irradiated. Uncooked meat is stuffed in the tube and during cooking the meat outer surface adheres to the tube inner surface.Type: GrantFiled: October 3, 1988Date of Patent: April 10, 1990Assignee: Viskase CorporationInventors: Stanley Lustig, Jeffrey M. Schuetz
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Patent number: 4897274Abstract: A multi-layer highly moisture and gas permeable packaging film comprising a core layer of a butadiene-styrene copolymer with a styrene content of 60 to 80% by weight and at least two outer layers having heat sealable and gas permeability properties.Type: GrantFiled: July 13, 1987Date of Patent: January 30, 1990Assignee: W. R. Grace & Co.Inventors: Giovanni Candida, Luigi Perazzo
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Patent number: 4897295Abstract: A food stuff casing is disclosed, in particular for packing and casing hot packed food stuffs or those that are heated after packing, containing at least one polyamide, which can absorb at leasat 5% of its own weight in water prior to saturation, characterized in that the food stuffs casing contains at least 5%-wt water, no tightening lubricating agent, and no moisture retention agent.Type: GrantFiled: August 6, 1987Date of Patent: January 30, 1990Assignee: Naturin-Werk Becker & Co.Inventors: Gayyur Erk, Joachim Kuhn
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Patent number: 4892765Abstract: The present invention discloses a heat-shrinkable laminate film which comprises a core layer of a copolymer of vinylidene chloride, two surface layers of a polyamide and an adhesive layer between core and surface layers and is excellent in a barrier property to gaseous oxygen, a barrier property of water vapor, an anti-creep property at a high temperature, an anti-pinhole property, a closely adhering property to meat, safety, an anti-curl property, an anti-creep property in warm water, an anti-delayed recovery property and an anti-peeling off property.Type: GrantFiled: May 22, 1987Date of Patent: January 9, 1990Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Nobuyuki Hisazumi, Keisuke Kahara, Yoshihiro Matsukura
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Patent number: 4889751Abstract: A fiber-reinforced cellulosic casing article with 40%-65% moisture, a first ketene dimer peeling aid coating on the casing inner surface, a second wood-derived tar-containing liquid smoke coating and precipitated tar having a single mode mass spectrometric distribution below 400 atomic mass units.Type: GrantFiled: November 9, 1987Date of Patent: December 26, 1989Assignee: Viskase CorporationInventors: James R. Hansen, Myron D. Nicholson, Jeffrey B. Sherry
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Patent number: 4883697Abstract: A flexible multilayer label adapted for application to deformable thermoplastic packages, with such label being impervious to water and sufficiently resilient to avoid permanent deformation upon deflection. The label includes a thermoplastic stress-compensating stratum having a relatively elastic structure which has a Young's Modulus less than about 2800 Kg/cm.sup.2 and a lower surface adapted to be bonded to the outer surface of the thermoplastic package during in-mold labeling procedures. The label further includes a thermoplastic label stratum having a Young's Modulus which exceeds about 7030 Kg/cm.sup.2 and a smooth label surface. The label stratum is laminated to the upper surface of the stress-compensating stratum. The stress-compensating stratum structure accommodates the thermal stresses and package shrinkage inherent in such in-mold labeling procedures, as well as stresses imposed by deformation of the package in use.Type: GrantFiled: July 22, 1988Date of Patent: November 28, 1989Assignee: The Procter & Gamble CompanyInventors: Arthur H. Dornbusch, Roger E. Schanzle, Irvin L. Brazier