Abstract: A heat-shrinkable film suitable for forming an easy opening cook-in bag is provided. The film comprises at least five layers, including an inner layer, an inner frangible layer, a barrier layer, an outer frangible layer, and an outer layer. The film is capable of being formed into a bag comprising a lap seal, a top end seal, and a bottom end seal, wherein the seals are heat sealed to a closed condition to contain and protect a product disposed therein. The lap seal, top end seal, and bottom end seal each are able to remain sealed during cook-in conditions. Additionally, the lap seal, top end seal, and bottom end seal each are peelable and easily openable by application of force.

Abstract: A package (599) with three layers allows sterilization of the package contents, provides a separate area for a scavenger and minimizes the oxygen transmission rate for the package and has, in one embodiment, a third layer (330) with a first section (336) of breathable polymeric material, a second section (334) of substantially non-breathable polymeric material and a third section (332) of breathable polymeric material which is positioned between a first layer (512) of substantially non-breathable polymeric material and a second layer (514) of substantially non-breathable polymeric material. The first layer (512) and the second layer (514) are fixed together to define a non-breathable pouch (516); and the third layer (330) is fixed to the first layer (512) and the second layer (514) and divides the non-breathable pouch (516) into a first compartment (592) and a second compartment (594).

Abstract: An easy opening heat-shrinkable bag adapted to be heat sealed to a closed condition to contain and protect a product disposed therein, whereby, at least one heat seal is peelable and readily openable by application of force.

Abstract: A polymer blend and mono-and multilayer films made therefrom suitable for processing or packaging articles which have an improved combination of properties e.g. such as lower tear strength and higher puncture resistance, or higher puncture resistance at both room temperature in air and at elevated temperatures in contact with water wherein the blend preferably has a first copolymer of ethylene and hexene-1 having a copolymer melting point of 80 to 98° C., preferably of 80 to 92° C.; a second copolymer of ethylene and at least one &agr;-olefin having a copolymer melting point of 115 to 128° C.; and a third copolymer of ethylene and a vinyl ester or alkyl acrylate and having a melting point of 60 to 110° C., and a process for making such films, especially shrink films having at least 40% shrink at 90° C. in at least one direction.

Abstract: A bag combination of: (A) a heat shrinkable film bag having a layer comprising: (a) 45-85 wt. % of a C2 copolymer (55-98° C. m.p.) of C6 or C8; (b) 5-35 wt. % of a second C2 &agr;-olefin copolymer (115-128° C. m.p.); and (c) 10-50 wt. % of a third polymer (60-110° C. m.p.) of an unmodified or anhydride-modified, EVA, EAA or copolymer of C2 and methacrylic acid or an alkyl acrylate; where a+b≧50 wt. % based on a+b+c; and the bag film has a total energy absorption≧0.70 Joule and a 90° C. shrink≧50%; and (B) a bag laminate which covers≧25% of the bag's surface; the laminate film comprising: 5-20 wt. % of (i) an ionomer; and 5-95 wt. % of (ii) a copolymer (55 to 95° C. m.p. and {overscore (M)}w/{overscore (M)}n of 1.5 to 3.5) of C2 and a C6-C8 &agr;-olefin; 0 to 90 wt. % each of (iii) a copolymer of C2 and a C4-C8 &agr;-olefin (100-125° C. m.p.); (iv) a copolymer (105 to 145° C. m.p.) of propylene and C2 or C4; and (v) a copolymer (125 to 135° C. m.

Abstract: A polymer blend and mono-and multilayer films made therefrom having an improved combination of properties such as high shrinkage values and high puncture resistance wherein the blend has a first copolymer of ethylene and octene-1 having a copolymer melting point of from 55 to 95° C., preferably of from 80 to 92° C.; a second copolymer of ethylene and at least a &agr;-olefin having a copolymer melting point of from 115 to 128° C.; and a third copolymer of ethylene and a vinyl ester or alkyl acrylate and having a melting point of from 60 to 110° C., and a process for making such films, which preferably have at least 45% shrinkage at 90° C. in at least one direction.

Abstract: A polymer blend, and mono- and multilayer films made therefrom, having improved properties such as heat scaling or puncture resistance, wherein the blend has a first polymer of ethylene and at least one &agr;-olefin having a polymer melting point between 55 to 75° C.; a second polymer of ethylene and at least one &agr;-olefin having a polymer melting point between 85 to 110° C.; a third thermoplastic polymer having a melting point between 115 to 130° C., and optionally a fourth polymer, e.g. EVA, having a melting point between 90 to 100° C.

Abstract: A patch bag for, packaging bone-in meat cuts having a thin-walled heat shrinkable monolayer patch film adhered to a thin-walled heat shrinkable multilayer bag film wherein the adherence of one to the other is solely due to the surface energy of the films, the patch film and the heat seal layer of the bag film both including blend of a first polyethylene having a density below 0.900 g/cc and a second polyethylene having a density of 0.900 to 0.915 g/cc and a melting point of 90 to 110° C. and a third polyethylene having a density of 0.900 to 0.915 and a melting point of 115 to 130° C. with EVA being a third component of the bag film heat seal layer and an optional component of the patch film.

Abstract: A packaged article, especially a respiring foodstuff such as cheese which generates or releases gas during storage, and a permeable multilayer biaxially oriented film suitable for allowing escape of such gas while minimizing transfer of oxygen across the film which has a thin layer of a blend of EVOH and nylon. In a preferred embodiment the low cost film having a high permeability to CO2 and low O2 permeability is used to package cheese.

Abstract: 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 wall of at least one of these portions to provide it with different optical properties which are useful e.g., for quality control and identification of color development, meat type and particle definition and/or to provide an attractive package appearance. In a preferred embodiment, a sausage is encased where the surface area of the second portion is less than or equal to the first portion and these portions are visually different having measurable L,a,b and opacity values such that: i) an average opacity value of the first portion is at least about 0.

Abstract: 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 polyphosphate and optionally an antioxidant.

Abstract: 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 combination of physical properties and processability including high shrinkage values and puncture resistance.

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.

Abstract: 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 percentage cross-sectional area difference relative to a circumscribed circle according to the formula: ##EQU1## wherein A=Area of a noncellulosic fiber cross-section; and B=Area of a circle circumscribing said fiber cross-section and, preferably, having an absorption rate of at least 15, most preferably at least 30 mm/10 min. in an aqueous solution of 40 wt. % KOH.

Abstract: 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 -C.sub.10 .alpha.-olefin, having a density of 0.900 g/cm.sup.3 to <0.915 g/cm.sup.3, and a melting point between 85.degree. C. and 125 .degree. C. with at least 5% of a high density polyethylene, and layer (b) being at least 45% of a copolymer of ethylene and at least one C.sub.3 -C.sub.10 .alpha.-olefin, having a density of 0.900 g/cm.sup.3 to <0.915 g/cm.sup.3, and a melting point of 85.degree. C.-125.degree. C., the film being 50.8 micrometers(.mu.) or less in thickness, and having a shrinkage value of at least 60% in at least one direction at 127.degree. C., and a process for making the film.

Abstract: 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 it with different optical properties which are useful e.g., for quality control and identification of color development, meat type and particle definition and wherein the casing is deshirred, stuffed, cooked and peeled from the cooked sausages which are then repackaged. In a preferred embodiment, a sausage is made using a casing where the surface area of the second portion is less than or equal to the first portion and these portions are visually different having measurable L, a, b and opacity values.

Abstract: 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.

Abstract: 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 polymer of ethylene and at least one .alpha.-olefin having a polymer melting point between 85 to 110.degree. C. and a third thermoplastic polymer having a melting point between 115 to 130.degree. C.; and optionally a fourth polymer e.g. EVA, having a melting point between 90 to 100.degree. C.

Abstract: 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 first layer of a copolymer of propene and at least one C.sub.2 -C.sub.8 .alpha.-olefin having a propene content of at least 60 wt. % and preferably having a melting point <140 .degree. C.; a second layer of (1) a first copolymer of ethylene and at least one C.sub.4 -C.sub.8 .alpha.-olefin having a density of from 0.900 to 0.915 g/cm.sup.3 and a melt index of less than 1.0 dg/min., (2) a second copolymer of ethylene with from 4 to 18%, preferably 4 to 12%, of a vinyl ester or alkyl acrylate, (3) an anhydride-modified third copolymer of ethylene with at least one .alpha.-olefin, a vinyl ester or an alkyl acrylate, and (4) optionally a fourth copolymer of ethylene and at least one C.sub.3 -C.sub.8 .alpha.

Abstract: A 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 least one side of said substrate; converting the solution to a solid cellulose or cellulose derivative, preferably having a degree of polymerization of at least 350, more preferably at least 600, to form a coated substrate; washing and drying the coated substrate to provide a battery separator, preferably having a absorption rate of at least 6 mm/5 min. and a 30% KOH absorption of at least 200 g/m.sup.2.