Abstract: An article of manufacture includes an oxygen scavenger and a zeolite. The article can be in the form of e.g. a film or sealing compound. A package can be made from the article for containing an oxygen-sensitive article such as food. The zeolite reduces migration of odor causing by-products of the oxygen scavenging process. A method of making an article of manufacture having reduced migration of by-products of an oxygen scavenging reaction includes providing an article including an oxygen scavenger and a zeolite; and exposing the article to actinic radiation.

Abstract: Multilayer plastic containers for food and beverage packaging which incorporate oxygen scavenging resins which selectively oxidize upon activation without giving off odorous fragments.

Abstract: A composition comprising a poly(hydroxy aminoether) and an effective amount of a propoxylated or ethoxylated phenol, process for preparing the same and articles prepared from the composition.

Abstract: Apparatus for multi-dose delivery of preservative-free pharmaceuticals includes a film laminate flexible container for holding and maintaining a sterile drug formulation. A nozzle disposed within the container and in fluid communication therewith provides for dropwise dispensing of the formulation from the flexible container. The nozzle includes an interface established by inner and outer portions of the nozzle which is normally sealed. The nozzle out of portion is sufficiently flexible to enable expansion thereof and passage of the dry formulation therethrough by a piston which withdraws selected volumes of the formulation from the container.

Abstract: A laminated film includes an outer-layer-film, a water-soluble film, and an intermediate layer interposed between the outer-layer-film and the water-soluble film. The intermediate layer contains high-pressure polyethylene oxidized to a prescribed degree on a surface thereof contiguous to the water-soluble film. The outer-layer-film and the intermediate layer adhere fast to each other. The intermediate layer and the water-soluble film directly contact each other and adhere so weakly to each other as to be peelable.

Abstract: The present invention relates to a halogen-free, multilayered heat shrink film comprising (A) a core layer comprising a copolymer of ethylene or propylene with an alpha olefin and the core having an upper and lower surface, (B) a skin layer on the upper surface of the core layer, wherein the skin layer comprises a polyolefin or polyolefin blend and (C) a printable layer on the lower surface of the core layer, wherein the shrinkage of the film is at least about 30%. The invention also relates to articles, including cylindrical articles such as batteries. The films have good shrinkage and avoids end puckering. Additionally, the films are printable, even with gravure printing. The films and labels produced thereform may be applied at high speeds and have good heat stability.

Abstract: A saponified ethylene-vinyl acetate copolymer is characterized in that, in the relationship between the heating time and the extrusion rate as measured with a Koka flow tester at at least one temperature higher by 10-80° C. than the melting point thereof, it shows an extrusion rate at any time within the period of 15 minutes to 2 hours of heating which is 0.1-50 times the extrusion rate at 15 minutes of heating and an extrusion rate at any time within the period of 2-10 hours of heating which is less than 2 times the extrusion rate at 15 minutes of heating and that, in the relationship between the heating time and the torque at at least one temperature higher by 30-60° C. than the melting point, it shows, at any time within the range of 1-2 hours of heating, a toruque value within the range of ⅙ to ⅚ of the maximum torque value found within the initial 20 minutes of heating.

Abstract: A two-ply laminate is provided for production of flexible containers such as stand-up or gusseted pouches for snacks or beverages. The laminate is made from an outer web and an inner web. The outer web provides printability, stiffness and thermal resistance. The inner web is made of three layers. The outer layer may be metallized with aluminum to provide resistance to moisture migration. The middle layer provides barrier qualities for retardation of the migration of slipping agent on an inner or sealing layer. The inner layer provides a sealing quality and a low coefficient of friction to allow the laminate to slide over manufacturing machines.

Abstract: Balloon films for buoyant toy balloons include a support layer, a gas barrier layer, and a metalization layer. In one embodiment, the barrier layer also serves as a support layer for the metalization. In other embodiments, the support layer is additional to the barrier layer. A sealant layer is added to allow balloon manufacture using commercial techniques.

Abstract: A multilayer, heat-shrinkable food packaging film useful for forming a post packaging pasteurization bag. The film includes at least three layers: 1) a first outer layer formed from a resin composition having a Vicat softening point of at least 100° C., 2) a second outer layer having one or more thermoplastic gloss materials of polyester, ethylene/alpha-olefin copolymer having a melt index of greater than 1 g/10 minutes, styrene/butadiene block copolymer, and ethylene/styrene random copolymer, and 3) one or more inner layers between the first and second outer layers. At least one of the inner layers includes an ethylene/alpha-olefin copolymer. The film has a total free shrink of at least 40% at 85° C. If the second outer layer includes polyester, then each of the inner layers of the multilayer film is devoid of a weight amount of polyamide or polyester greater than the weight amount of polyester in the second outer layer.

Abstract: A wc-disposable ostomy bag is made from an alkali-disposable sheet comprising an outer layer of a non-woven material, an inner, thin layer of an alkali-resistant material and an intermediate layer of an alkali-soluble material such as carboxylated acrylic polymer. The alkali-resistant material has a high odor barrier and may be of polyvinylidene chloride. The non-woven material comprises fibers retained with one another by a colored alkali-soluble binder sprayed onto the fibers to form discontinuous regions of binder.

Abstract: A fuel permeation barrier fuel tank for a vehicle includes a tank shell having a wall formed from a plurality of layers. The layers include at least an inner layer, an outer layer, a fuel permeation barrier layer disposed between the inner layer and the outer layer, and at least one adhesive layer being made of at least one of a chlorinated polyethylene and chlorosulfonated polyethylene disposed between either the inner layer and the outer layer and the fuel permeation barrier layer.

Abstract: This invention is directed to sterilization indicator systems for determining the effectiveness of sterilization processes. Test indicator devices comprise a container that is open on one end and has liquid impermeable and substantially gas non-absorptive walls which surround the biological or chemical material to be used as the indicator system, the opening contains a barrier that allows fluid such as gas to flow from the outside, through the plug and into the interior chamber containing the indicator system providing the detection. The entire indicator is further contained within a sealed pouch that is liquid impermeable and gas permeable under the conditions of a gas over steam sterilization system. The flexible pouch allows the test indicator to properly function while protecting the indicator from the environment while maintaining reliability of the test results.

Abstract: A fastener tape for use in the manufacture of reclosable plastic bags is provided. The fastener tape comprises an intermediate layer and a reclosable fastener profile thereon. The intermediate layer includes three layers of co-extruded plastic, with not more than 4% EVA as the outer two layers and HDPE as the middle layer. The intermediate layer is folded so as to bring portions of the intermediate layer into an opposing relationship. These opposing portions are then sealed together by a pair of seal bars. By carefully controlling the sealing temperature, a consistent peel seal is created between the opposing portions of the intermediate layer without the need for an adhesive.

Abstract: A laminate having a layer structure of A/C/B/C/D, which is obtained by coextruding a saponified ethylene-vinyl acetate copolymer (B) and an adhesive resin (C) on one side of a polypropylene film (A) oriented at least uniaxially, to give a laminate having a layer structure of A/C/B/C, stretching this laminate in the transverse direction, and laminating a heat sealing layer (D) on a surface of the adhesive resin (C) of the laminate, and a production method thereof. The laminate of the present invention is superior in gas barrier property, moisture proof, aromatic proof and the like under particularly high humidity, and particularly when formed into a packaging bag, the packing bag shows superior sealing performance and appearance. Hence, the laminate of the present invention is useful for various packaging applications and as a packaging bag and the like for food and pharmaceutical preparations.

Abstract: A multilayer film, comprising, in the following order: a. a first layer consisting essentially of amorphous polyamide; b. a second layer adhered to a surface of the first layer; and c. a third layer adhered to a surface of the second layer, the third layer comprising at least one member selected from ethylene/vinyl alcohol copolymer, polyamide MXD6, polyamide MXD6/MXDI, polyvinylidene chloride, and polyacrylonitrile.

Abstract: A medical device, at least a portion of which is composed of a polymeric material in which the polymeric material is a melt blend product of at least two different thermoplastic polymers, one of the thermoplastic polymers being a thermoplastic liquid crystal polymer (LCP) having a melting point of less than 250° C. The portion of the device made from the melt blend may be a catheter body segment or a balloon for a catheter. The LCP blends suitably also include a non-LCP base polymer having a melting point in the range of about 140° C. to about 265° C.

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 multilayer structure with improved permeation for atmospheric diffusion of aromatic products wherein the structure comprises: a permeable membrane wherein said permeable membrane comprises at least two polymeric layers wherein the polymer of each layer is independently selected from the group consisting of polyethylene, very low density polyethylene, low density polyethylene, ethylene methylacrylate copolymer; a release layer wherein said release layer comprises a nylon polymer or a ethylene vinyl alcohol copolymer wherein the release layer is adhered to most inner polymeric layer of the permeable member which comprises the permeable membrane and wherein the adhesion between release layer and the adjacent layer of the polymeric permeable membrane is a relatively weak bond compared to the bond between the layers of the polymeric permeable membrane; and an impermeable membrane wherein said impermeable membrane comprises one or more layers wherein the materials which comprise the individual layers of the imper

Abstract: Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group.

Abstract: A multilayer film suitable for cook-in end use includes an outer layer that includes a homo- or co-polymer of propylene and, directly adhered to the outer layer, a layer that includes at least one of: (a) an ethylene/alkyl acrylate copolymer having a high melting point, (b) propylene/&agr;-olefin copolymer having a lower propylene mer content than the outer layer and having a high Vicat softening point, and (c) an ethylene/vinyl acetate copolymer with at least 15% vinyl acetate mer content. The film exhibits good seal strength and good adhesion between the two layers, even in areas where the film is sealed, even after the film is oriented, even when the film is subjected to the elevated temperatures involved in cook-in procedures, and even where the film is subjected to, e.g., grease from fatty foods. The film also can include one or more other layers including, for example, bulk layers, O2-barrier layers, and/or abuse layers.

Abstract: A plastic container having a thin outer layer that protects against stress concentration effects arising from either surface irregularities or flexing when dropped and a method of making that container. The outer layer helps avoid bottle failure resulting from cracks that start at such areas of stress. The outer layer may incorporate both the stress inducing irregularities and the properties to minimize possible, resulting catastrophes. The surface irregularities giving birth to stress include edges of in-mold-applied labels, ridges, stippling, and grip bumps. Dropping the container gives rise to flexing which can also induce stress concentrations. The outer layer, to accomplish the protective function, should display lesser brittleness or, in some cases, lesser density than the bulk of the container wall. Making the container involves forming the bulk of the wall with a first, inner, structural plastic.

Abstract: This invention concerns a stabilized packaging environment for a particulate vinyl lactam polymer, particularly polyvinylpyrrolidone particles, which comprises a sealed, oxygen-impervious receptacle containing said polymer particles and a separate air permeable package within the receptacle containing a water moistened oxygen scavenging agent, preferably iron powder, an iron (II) salt, ascorbic acid or a mixture of such agents.

Abstract: A multi-layer, water-soluble film, a method of producing such film, and a method of packaging a chemical in such film are provided. The multi-layer film comprises a continuous layer of water-soluble material suitable for forming an outer layer of a bag, and a barrier coating affixed to discrete areas of the continuous layer, leaving a plurality of uncoated intervals occurring at repeating distances on the continuous layer. The continuous layer is of sufficient thickness and strength to provide sufficient structural integrity for use as a bag. The barrier coating, suitable for forming the inner surface of a bag, lacks sufficient structural integrity to contain the contents of the bag once the outer layer is substantially dissolved.

Abstract: The present invention relates to multilayered composite films comprising a film or film combination A of plastics layers or metal layers in any arrangement, having an at least 10 &mgr;m thick, biaxially oriented heat-sealable layer C predominantly comprising polyethylene homopolymers or polyethylene copolymers, which is bonded by means of an adhesive layer or connecting layer B to the film or film combination A.

Abstract: A sealed article comprising a multilayer film having at least 4 layers. The first layer is an inside layer comprising ethylene/alpha-olefin copolymer and/or polystyrene. The second layer comprises ethylene/unsaturated ester copolymer, anhydride-modified ethylene/alpha-olefin copolymer, anhydride-modified ethylene/ester copolymer, acid-modified ethylene/alpha-olefin copolymer, and/or acid-modified ethylene/acid copolymer. The third layer comprises ethylene/alpha-olefin copolymer and/or polystyrene. The fourth layer comprises ethylene homopolymer, ethylene/alpha-olefin copolymer, ethylene/vinyl alcohol copolymer, polyvinylidene chloride, polyamide, polyester, polyalkylene carbonate, polyacrylonitrile, and/or ethylene/unsaturated ester copolymer. At least 85 volume percent of the film is made up of polyolefin homopolymer, polyolefin copolymer, ethylene/ester copolymer, polystyrene, styrene/butadiene copolymer, EVOH, PVDC, and polyacrylonitirile.

Abstract: A thermoplastic composition having incorporated metal is provided in accordance with the invention. The thermoplastic composition can be processed at low temperatures, readily absorbs water, and is processable into a form suitable for use as a plant container. The thermoplastic composition and plant containers made therefrom are useful for promoting root branching in plants.

Abstract: An inflatable apparatus, which includes an upper cover sheet and a bottom cover sheet respectively cut from a multi-layer sheet material, and at least one connecting band respectively connected between the upper cover sheet and the bottom cover sheet and defining with the upper cover sheet and the bottom cover sheet an air-tight air chamber, each connecting band having a lining cut from same multi-layer sheet material, and a water-proof plastic cover layer covered on the lining over cutting edges of the lining and welded to border areas between the upper cover sheet and the bottom cover sheet, the multi-layer sheet material having two water-proof plastic cover layers, a meshed intermediate nylon layer sandwiched in between the plastic cover layers, and two bonding layers covered on top and bottom sides of the meshed intermediate nylon layer and respectively bonded to the plastic cover layers.

Abstract: A water-soluble polyvinyl alcohol coating agent for a film contains from 3 to 19 mol % of &agr;-olefin units, wherein each said &agr;-olefin unit contains up to 4 carbon atoms. The polyvinyl alcohol coating agent can be coated on a polyolefin, a polyester or a polyamide substrate film to form a laminate film. A method for producing the laminate film comprises applying an aqueous solution of the coating agent to the substrate film, followed by drying the coating.

Abstract: A multilayer film suitable for cook-in end use includes an outer layer that includes a homo- or co-polymer of propylene and, directly adhered to the outer layer, a layer that includes at least one of: (a) an ethylene/alkyl acrylate copolymer having a high melting point, (b) propylene/&agr;-olefin copolymer having a lower propylene mer content than the outer layer and having a high Vicat softening point, and (c) an ethylene/vinyl acetate copolymer with at least 15% vinyl acetate mer content. The film exhibits good seal strength and good adhesion between the two layers, even in areas where the film is sealed, even after the film is oriented, even when the film is subjected to the elevated temperatures involved in cook-in procedures, and even where the film is subjected to, e.g., grease from fatty foods. The film also can include one or more other layers including, for example, bulk layers, O2-barrier layers, and/or abuse layers.

Abstract: A multi-layer heat resistant film laminate with good optical properties, extended shelflife, and memory characteristics and its method of manufacture, the laminate having the generalized structure of (outside) A/B/C/D/C/B/E (inside), where A is an outer moisture barrier layer, B is an intermediate adhesive layer, C is a polyamide layer D is an oxygen barrier layer, and E is a sealant layer.

Abstract: A sampler package for fluid cosmetics, creams, gels, and the like having a liquid solvent base includes a transparent composite laminate sealed with a composite laminate having a foil barrier layer. The sealed composite laminates form a pouch in which the cosmetic sample is contained. The transparent composite laminate is preferably adhesively laminated with either a biaxially oriented PVDC film or a polychlorotrifluoroethylene film as the moisture vapor barrier layer. The moisture permeability rate of the barrier film is at most 0.065 g/100 in2/24 hrs @100° F.,90% RH. Use of such transparent films as the barrier laminate permits the sampler package to be formed with a transparent window through which the color, texture, etc. of the sampler product may be viewed.

Abstract: A package for oxygen sensitive goods is made using a barrier material, an oxygen scavenging system, and a polymeric base which is reactive with the by-products of oxygen scavenging. Such packages demonstrate improved product quality.

Abstract: Improved oxygen barrier and oxygen absorbing compositions and structures comprising blends of xylylene group-containing polyamides and cobalt octoate and xylylene group-containing polyamides, polyesters and cobalt octoate are disclosed and claimed. These blends have superior barrier properties and clarity obtained by controlling the degree of orientation and the amount of cobalt. These novel blends are used as single layers and as the core layer in multiple layer films, structures and articles. When used in multiple layer structures, the adjacent layers are comprised of polyesters and/or polyamides. The structures made from the blends of the present invention have a clarity that is superior to structures previously known in the art.

Abstract: A sampler package for fluid cosmetics, creams, gels, and the like having a liquid solvent base includes a transparent composite laminate sealed with a composite laminate having a foil barrier layer. The sealed composite laminates form a pouch in which the cosmetic sample is contained. The transparent composite laminate is preferably adhesively laminated with either a biaxially oriented PVDC film or a polychlorotrifluoroethylene film as the moisture vapor barrier layer. The moisture permeability rate of the barrier film is at most 0.065 g/100 in2/24 hrs @100° F., 90%RH. Use of such transparent films as the barrier laminate permits the sampler package to be formed with a transparent window through which the color, texture, etc. of the sampler product may be viewed.

Abstract: A therapeutic system for supplying active substances to the skin consists of a backing layer remote from the skin, with at least one active substance depot. The depot may consist of a fluid active substance or a fluid composition comprising an active substance delivery control matrix. There is also included an adhesive fixing device for fixing the therapeutic system on the skin. The therapeutic system is characterized in that the active substance depots (14) consist of at least one adjuvant having a supporting and distributing function by being provided with a planar textile material completely surrounded by matrix (12).

Abstract: A multilayer sealant film for use in the medical field at least comprises as its innermost layer a first layer comprising at least one resin selected from the group consisting of linear low-density polyethylene, low-density polyethylene, polypropylene and polybutene-1, and a third layer comprising an ethylene-vinyl alcohol copolymer and laminated to the outer side of the first layer with a second layer serving as an adhesive layer and comprising a resin containing, as a main component, at least one of an amorphous polyolefin, adherent polyolefin and ethylene-vinyl acetate copolymer. The ethylene-vinyl alcohol copolymer forming the third layer functions as a barrier for preventing contaminants from migrating from outside of the third layer toward the first layer (innermost layer). Further, it is possible to improve the formability of the multilayer film since the difference in density between the resin for forming the first layer and the resin for forming the second layer is set to be 0.02 g/cm3 or less.

Abstract: A multilayered packaging film includes a first exterior layer of a heat sealable polymer and second exterior layer on a side opposite from the first exterior layer, and including two inner layers made of polyvinylidene chloride disposed between the first and second layers and an innermost core layer disposed between the two inner layers wherein the innermost core layer is not crossed-linkable when exposed to radiant energy.

Abstract: Improved oxygen barrier and oxygen absorbing compositions and structures comprising blends of xylylene group-containing polyamides and cobalt octoate and xylylene group-containing polyamides, polyesters and cobalt octoate are disclosed and claimed. These blends have superior barrier properties and clarity obtained by controlling the degree of orientation and the amount of cobalt. These novel blends are used as single layers and as the core layer in multiple layer films, structures and articles. When used in multiple layer structures, the adjacent layers are comprised of polyesters and/or polyamides. The structures made from the blends of the present invention have a clarity that is superior to structures previously known in the art.

Abstract: A heat-shrinkable backseamed casing film comprises a first layer, a second layer, and a third layer, with the first and third layers being outer layers and the second layer being between the first layer and the third layer. The first outer layer serves as an inside casing layer, and comprises polyolefin; the second layer comprises polyester and/or polyamide; the third layer serves as an outside casing layer and comprises polyolefin, polystyrene, and/or polyamide. The second layer has a thickness of at least about 5% of a total thickness of the heat-shrinkable casing film. Alternatively, the first layer comprises polyolefin and has a surface energy level of less than about 34 dynes/cm; the second layer comprises a polyamide having a melting point of at least 300° F.; and the third layer comprises polyolefin, polystyrene and/or polyamide. A package comprises a cooked meat product within the backseamed casing.

Abstract: A multilayer plastic film has a series of component layers and bonding layers bonding said component layers together, the component layers including an inner hydrolysed ethylene vinyl acetate copolymer (EVOH) layer, an adjacent polyvinylidene chloride (PVDC) layer, and outer layers comprising a polyolefin homopolymer, copolymer or ionomer.

Abstract: Disclosed is a specific adhesive polyethylene composition comprising [1] a modified ethylene/&agr;-olefin copolymer resin or elastomer obtained by modifying a specific ethylene/&agr;-olefin copolymer resin or elastomer, each of which comprises ethylene and an &agr;-olefin of 3 to 20 carbon atoms, with an unsaturated carboxylic acid or anhydride, ester, amide, imide or metallic salt derivative of a unsaturated carboxylic acid thereof, [2] an unmodified ethylene/&agr;-olefin copolymer resin and/or an unmodified ethylene/&agr;-olefin copolymer elastomer and [3] a tackifier. Also disclosed is a multi-layer laminated film of 3 or more layers in which a layer of the above composition is interposed between an ethylene polymer layer and either a polyamide resin layer, an ethylene/vinyl alcohol copolymer layer or a layer of a mixture of polyamide resin and ethylene/vinyl alcohol copolymer.

Abstract: A plastic packaging material which, when formed as a package having seams, will provide a predictable line of failure along a seam when the package is opened to prevent the package from tearing down the side. The predictable failure path is provided through a lamination process involving specific resins or blends of resins laminated in three (or more) layers in which an extruded inner layer forms a weak inner bond wholly within that inner layer to create the predictable line of failure and in which the process of forming the material does not inhibit processing speed, efficiency, and economics of materials used to provide this reliable openability.

Abstract: The present invention relates to barrier membranes including a barrier layer which includes one or more thermoplastic urethane formed from polyester polyols. More particularly, the membranes include a barrier layer including blends of one or more polyester polyol based thermoplastic urethanes and one or more copolymers of ethylene and vinyl alcohol. The barrier membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.

Abstract: Film and sheet materials, and articles made therefrom, such as bags, pouches, trays, etc., comprise one or more layers of a thermoplastic, homogeneous alpha-olefin/vinyl aromatic copolymer, preferably an ethylene/styrene copolymer. The alpha-olefin/vinyl aromatic copolymer has properties which can can provide a desired performance characteristics such as impact resistance, printability, RF sealability, free shrink, optics, as well as many others. The homogeneous alpha-olefin-vinyl aromatic copolymer may be present in a mono-layer film, either alone or in a blend, or may be included in one or more layers of a multilayer film. Also included is a multilayer thermoformable article comprising a web having a film of such alpha-olefin/vinyl aromatic copolymers thereto. Finally, also included is an RF-sealable film comprising such copolymers.