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

Abstract: The invention relates to compositions useful for bonding fluoropolymer to substantially non-fluorinated polymer. The compositions of the invention comprise a substantially non-fluorinated polymer or a mixture of said polymers, a di- or polyamine, preferably, an aliphatic diamine, and an onium catalyst, preferably, a phosphonium salt.

Abstract: Packaging laminate for packages for liquid foods having excellent liquid and oxygen gas barrier properties in which all included layers are biodegradable. The packaging laminate includes at least one liquidtight layer (11, 13) of homo or copolymers of monomers selected from a group consisting of lactic acid, glycol acid, lactide, glycolide, hydroxy butyric acid, hydroxy valeric acid, hydroxy caproic acid, valerolactone, butyrolactone and caprolactone, as well as an oxygen gas barrier layer (12) of ethylene vinyl alcohol, polyvinyl alcohol, starch or starch derivatives. The oxygen gas barrier layer is preferably applied by a dispersion coating process. The layers may be laminated directly to one another or indirectly by means of interjacent adhesive layers. The packaging laminate may also include a core layer of, for example, paper or paperboard, or a biopolymer. The invention also realises a method of producing the biodegradable packaging laminate according to the invention.

Abstract: The present invention relates to squeezable containers for flowable products having improved barrier and/or mechanical properties and methods for making said sqeezable containers. These improvements are achieved by incorporating into the squeezable container a polymeric nanocomposite comprising a polymer and nanosize particles of a modified clay.

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: 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: Described and claimed are mat boards and backing boards buffered to a pH greater than 7.0 and having as an outer layer a vapor barrier and protective material such as PET, PBT, co-PBT co-PET and mixtures thereof, as well as methods for making and using such matboards and backing boards.

Abstract: Co-processable multi-layer laminates having a high Tg layer and at least one low Tg layer with layers having properties of high strength, lo- or no-haze, and transparency after processing into various multi-layer forms are useful for packaging and container applications. The multi-layer laminate has at least one low Tg layer of a first thermoplastic polyester having at least one crystallization rate inhibitor. The total amount of crystallization rate inhibitor is effective to prevent substantial haze in the low Tg layer upon heating. In most applications, the total amount of crystallization rate inhibitor also does not substantially inhibit strain-induced crystallization of the at least one low Tg layer when the laminate is stretched during processing. The multi-layer laminates of the invention have improved properties such as reduced shrinkage and/or high barrier properties, with a very small amount of high Tg material used to impart these improved properties to the laminate.

Abstract: The invention concerns composite polyester films with good barrier properties relative to gases. More precisely, it concerns a biaxially drawn film, based on polyester and having improved barrier properties relative to gases, characterised in that it comprises a base polyester film of 5 to 50 &mgr;m, coated on one of its two surfaces with a deposit containing polyvinyl alcohol and a water dispersible copolyester with sulphonyloxy units, said composite film having permeability to oxygen measured at 23° C. under 50% relative humidity, not more than 5 cm3/m2/24 h. Said composite films have, besides being transparent and having barrier properties, excellent resistance to mechanical stresses, such as in particular crumpling.

Abstract: The multilayer plastic container comprises a neck portion, a body portion, adjacent the neck portion, forming a cylindrical wall, and a bottom portion adjacent the body portion and opposite the neck portion. The cylindrical wall comprises a first layer of PET, a layer of EVOH adjacent the first layer of PET and a second layer of PET adjacent the layer of EVOH. The EVOH has an average thickness which is greater near the neck portion of the container than near the bottom portion of the container.

Abstract: A sealing film and a method of sealing the film to glass is disclosed. The film comprises a layer of ethylene vinyl alcohol (EVOH) or a laminate comprising an outermost ethylene vinyl alcohol (EVOH) layer for adhering to a glass surface, particularly the rim of a glass container, using heat and pressure. The laminate may include in addition to the EVOH layer an adhesive layer, polymeric layer, optional adhesive layer and stock layer. The film has excellent adhesive properties, is food safe and is suitable as a sealing material.

Abstract: A thermal insulating device, and process for making it, are presented. The inventive thermal insulating device is formed of a cylindrically shaped shell comprising multiple layers of a continuous spiral wound anisotropic flexible graphite sheet, the layers of spiral wound graphite sheet being separated by and bonded to a cured resin.

Abstract: A resin composition comprising (A) a polyolefin resin, (B) a vinyl alcohol copolymer and (C′) a block copolymer composed of a polymer block of an aromatic vinyl compound and an isobutylenic polymer block, the weight ratio of (A) to (B) ranging from 100/10 to 100/1000 and the weight ratio of (C′) to [(A)+(B)] ranging from 5/100 to 1000/100 is a flexible resin material having high gas barrier properties, good heat resistance and good moldability or formability so that it is useful as a material for various molded or formed articles.

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 substantially flexible, shape-sustaining article, such as a flower pot cover, is disclosed wherein the article has a paper-like appearance. The article can be made by forming a flexible, substantially non-shape sustaining polymeric material or a laminated material wherein at least one surface of the material is modified to provide the material with a paper-like texture or appearance. The substantially flexible, shape-sustaining article, which has an appearance of being made of paper, includes a base having a closed lower end, an open upper end with an object opening extending therethrough and a decorative border extending outwardly from the open upper end of the base. The base of the article has a plurality of overlapping folds of which at least a portion are permanently connected so that the article may be substantially flattened and then unflattened to assume the original shape of the article.

Abstract: A multi-layer closure liner for carbonated beverage containers and the like, including a gas barrier layer, a first tie layer on an upper surface of the gas barrier layer, a second tie layer on a lower surface of the gas barrier layer, a first polyolefinic resin layer on the upper surface of the first tie layer, and a second polyolefinic layer on the lower surface of the second tie layer. In the preferred embodiment, the gas barrier layer is ethylene vinyl alcohol copolymer (EVOH), the first and second tie layers are functionalized polyolefin and the first and second polyolefinic resin layers are ethylene vinyl acetate (EVA). The layers defining the closure liner are preferably simultaneously formed using a co-extrusion process to prevent the gas barrier layer from being exposed to moisture.

Abstract: A plastic closure that includes a cap having a base with a peripheral skirt defining a cap interior and threads on the skirt for securing the closure to a container. A liner is secured to the interior of the cap, preferably by compression molding in situ. The liner consists essentially of a blend of a matrix polymer, a particulate barrier polymer and an compatibilizer. The heat and pressure of compression forms the particles of barrier polymer into platelets that are oriented essentially parallel to the plane of the disk.

Abstract: Coinjection stretch blow molded containers containing thermoplastic polyester resin and an EVOH resin are obtained, which have greatly improved impact delamination resistance.

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: A transparent packaging container comprises a plastic tube having a welded longitudinal seam wherein the plastic is polyethylene terephthalate.(PET).

Abstract: This invention relates to articles made of polyester, preferably polyethylene terephthalate (PET), having coated directly to at least one of the surfaces thereof one or more layers of thermoplastic material with good gas-barrier characteristics, and novel methods of making such articles. Preferably the barrier-coated articles take the form of preforms coated by at least one layer of barrier material and the containers blow-molded therefrom. Such barrier-coated containers are preferably of the type to hold beverages such as soft drinks, beer or juice. The preferred barrier materials have a lower permeability to oxygen and carbon dioxide than PET as well as key physical properties similar to PET. The materials and methods provide that the barrier layers have good adherence to PET, even during and after the blow molding process to form containers from preforms. Preferred barrier coating materials include poly(hydroxyamino ethers).

Abstract: An oxygen absorbing multi-layer film which comprises a first outer surface comprising an uncolored oxygen permeating layer 11 comprising an oxygen permeating polyolefin which does not contain a pigment; a colored concealing, oxygen permeating layer 12 disposed under the uncolored oxygen permeating layer 11, the color concealing, oxygen permeating layer 11 comprising an oxygen permeating polyolefin and a pigment; a second outer surface disposed opposite to the first outer surface, the second outer surface comprising a gas barrier layer 3; and an oxygen absorbing layer 2 disposed between the colored concealing, oxygen permeating layer 12 and the gas barrier layer 3, the oxygen absorbing layer 2 being made of an oxygen absorbing resin composition comprising an iron-containing deoxidizing agent and an oxygen permeating polyolefin. The oxygen absorbing multi-layer film can be used as a packaging material and has desirable strength, heat resistance, heat-sealing properties, hot tack properties and appearance.

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: 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 tube of layered material consisting of a first layer and a second layer, for use in transporting and storage of hydrocarbons, wherein said first layer consists essentially of polyethylene or polypropylene, and wherein said second layer constitutes a barrier layer for reducing the diffusion outward through said tube of hydrocarbons transported or stored within said tube and comprises polyethylene or polypropylene in combination with any component selected from the group consisting of butyl rubber, polyamide, and polyester. The first and second layers of the tube are coextruded.

Abstract: An automotive plastic fuel tank with a wall having a structural layer of HDPE and a hydrocarbon fuel barrier layer of an EVOH based material with a binder layer between them. The barrier layer prevents the passage of hydrocarbons through the wall to the atmosphere. The barrier layer is on an exterior face of the wall and preferably on the interior of the tank in direct contact with fuel therein. Preferably, the barrier includes a layer of polyamide (A) or a mixture of polyamide (A) and polyolefin (B).

Abstract: A method of making a polyester container having an enhanced level of crystallinity in the sidewall while maintaining a low level of crystallinity in a thickened base portion. The container is particularly useful as a refillable container which can withstand higher caustic wash temperatures and exhibits reduced flavor carryover, or as a hot-fill container. According to the method, a sidewall-forming section of a preform is initially expanded, heated to contract and crystallize the same, and than reexpanded; a base-forming portion of the preform is shielded from the heat treatment and is expanded either before or after the heat treatment step.

Abstract: A plastic closure that comprises a cap having a base with a peripheral skirt defining the cap interior and threads on the skirt for securing the closure to a container. A liner is secured to the interior of the cap, preferably by being compression molded in situ on the base. The liner consists essentially of a multiplicity of alternating layers of a matrix polymer material such as EVA and a barrier material such as EVOH to resist transmission of gas, water vapor and/or flavorants through the liner. The matrix polymer material preferably is preblended with a compatibilizer material such as a maleic anhydride grafted polymer that ties the matrix polymer material to the barrier material.

Abstract: A laminated material for the manufacture of packing containers with good gas and aroma barrier properties, and a method for the manufacture of the laminated material. The laminated material has a base layer (18) and a barrier layer (19) of inorganic material of a thickness of only 50-500 Å serving as a gas and aroma barrier. The barrier layer (19) is applied to the base layer (18) by means of vacuum deposition and bonded to the base layer by means of at least one intermediate layer (22) of bonding agent. To facilitate the conversion of the material to packing containers the barrier layer (19) is omitted along such areas (17a and 17b) of the material which are intended to be folded against, and combined with, one another by heat-sealing during the manufacture of the said containers.

Abstract: A composition having improved fuel vapor barrier properties comprising a blend of about 20 to 80 weight percent of a first fluorointerpolymer with about 80 to 20 weight percent of a second fluorointerpolymer, the first fluorointerpolymer comprising a copolymer, terpolymer or mixture thereof formed by the copolymerization of two or more monomers selected from the group consisting of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene, and the second fluorointerpolymer comprising a copolymer, terpolymer or mixture thereof formed by the copolymerization of two or more monomers selected from the group consisting of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene, wherein the first fluorointerpolymer exhibits elastomer characteristics and the second fluorointerpolymer exhibits thermoplastic characteristics.

Abstract: Polyester resin foamed sheet, usable for the production of containers for beverages and foods, having a density lower than 700 kg/m3 and crystallization rate such that, when the material is heated at 120° C. for 5 minutes, the crystallinity does not reach values higher than 15%. The aromatic polyester resin used for preparing the foamed sheet can be mixed with an aliphatic polyester resin to impart biodegradability and/or compostability to the sheet.

Abstract: Coinjection stretch blow molded containers containing thermoplastic polyester resin and an EVOH resin are obtained, which have greatly improved impact delamination resistance.

Abstract: A spoolable composite member having a sensor and an energy conductor embedded in the composite member. The spoolable composite member is capable of being spooled onto a reel for storage and for use in oil field applications. The spoolable tube exhibits unique anistropic characteristics that provide improved burst and collapse pressures, increased tensile strength, compression strength, and load carrying capacity, while still remaining sufficiently bendable to be spooled onto a reel in an open bore configuration. The spoolable composite tube can include an inner protective layer, an inner pressure barrier layer, an interface layer, fiber composite layers, an outer pressure barrier layer, and an outer protective layer.

Abstract: The present invention provides a multiple layer structure (10) for fabricating medical products. The layer structure (10) has a core layer (14) of an ethylene vinyl alcohol copolymer having an ethylene content of about 25-45 mole percent, a solution contact layer of a polyolefin positioned on a first side of the core layer, an outer layer (12) positioned on a second side of the core layer opposite the solution contact layer (16), the outer layer (12) being selected from the group consisting of polyamides, polyesters and polyolefins; two tie layers (18)—one of each adhered to the first and second sides of the core layer (14) and positioned between the solution contact layer (16) and the core layer (14) and between the outer layer (12) and the core layer (14), and wherein the structure (10) is produced in a cast coextrusion process.

Abstract: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.

Abstract: A panel for use in siding is disclosed. The panel has a cement core in a shape defining the panel of the siding, and a plastic film layer attached to the cement core. The plastic film layer is either a polymer or a copolymer of vinyl chloride. The panel may also have an adhesive layer which adheres the plastic film layer to the cement core. The cement core may contain fiber reinforcement.

Abstract: The specification discloses a layered composite containing a barrier layer comprising clay homogeneously dispersed in a continuous phase of polymeric material. The barrier layer is especially useful in the manufacture of liquid food containers. The clay/polymer barrier layer is formed by dispersing the clay in molten polymeric material to form a homogeneously dispersed clay in a continuous polymer phase. The barrier layer is then applied adjacent one surface of a paperboard component of the composite at a thickness ranging from about 1 to 30 microns. The paperboard may be coated or uncoated at the time the barrier layer is applied, and additional polymeric barrier layers and tie or adhesive layers may be used in combination with the barrier layer to provide reduced oxygen and water vapor transport through the composite.

Abstract: A tubular, multilayer film comprises a central barrier layer and a pair of adhesive layers on opposite sides of the central barrier layer. The adhesive layers completely cover the central barrier layer. Opposing edges of the central barrier layer overlap longitudinally along the tubular, multilayer film. The total thickness of the central barrier layers in the overlapping portion is substantially the same as the thickness of the central barrier layer in the non-overlapping portion. The tubular, multilayer film also includes inner and outer surface layers. The inner surface layer extends completely around the interior of the tubular, multilayer film, and the outer surface layer extends completely around the exterior of the tubular, multilayer film.

Abstract: A composite useful for making trays for the packaging of food and the like is formed from foamed polystyrene and a film bonded to the polystyrene, the film including a bonding layer of a styrene butadiene copolymer, the bonding layer including at least about 25% by weight of butadiene. The composite may be thermoformed into articles such as trays for use in the packaging of food products, especially meat products.

Abstract: A multi-layered article having a first portion constituted of laminated three resin layers and a second portion extending from the first portion, the first portion being constituted mainly of consecutively laminated resin layers composed of a first resin layer formed of a first resin, a second resin layer formed mainly of a second resin and a third resin layer formed of the first resin, the second portion being constituted of resin layers extending from the first resin layer and the third resin layer which constitute the first portion, the first resin layer constituting the outer surface layer of the multi-layered article, the third resin layer constituting the inner surface layer of the multi-layered article which inner surface layer is opposed to said outer surface layer, the second resin layer being encapsulated with the first resin layer and the third resin layer, the second resin layer having a thickness which decreases towards the second portion, and being discontinued, in a region of the first portion

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 invention concerns packaging container produced from a composite shaped by cold-forming, the term “packaging containers” including base of lid parts or base and lid parts shaped by cold-forming. The base or lid parts can be shaped by cold-forming, and a lid film or base film, respectively, can form the corresponding closure for the packaging container. In addition, both the base and the lid part can be shaped by cold-forming, the depressions formed in the base and lid parts advantageously lying opposite one another.

Abstract: A multi-layer preform, includes: (a) a plastic inner liner, comprised of a cylindrical walled body, which may or may not include a tapered annular shoulder portion, and a cylindrical walled neck portion extending upwardly from the body, and (b) a molded outer layer. Prior to the outer layer being molded over the plastic inner liner, at least a portion of the liner is crystallized by a heat treatment process. The molded outer layer may include a means to receive a closure device. When the preform is at an acceptable temperature range for orientation, the multi-layer preform can be blow-molded to form a multi-layer container having improved properties.

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: The present invention relates to membranes including an urethane including a polyester polyol, wherein the membrane has a gas transmission rate of 15.0 or less for nitrogen gas wherein the membrane has an average thickness of approximately 20.0 mils. Under certain embodiments, the membranes include blends of one or more polyester polyol based thermoplastic urethanes and one or more barrier materials. The membranes can be employed in a variety of applications and can be used as either monolayers or multi-layered laminates.

Abstract: The invention concerns polyvinyl alcohol (PVA) compositions for the use in pharmaceutical, veterinary, food, cosmetic or other products like films for wrapping food, aspics or jellies, preferably for predosed formulations like soft or hard capsules. Compared with hard gelatine capsules (HGC) capsule films consisting of PVA have extremely low water vapour permeability and much lower water content.

Abstract: A multilayer plastic container comprises a layer of a polypropylene and a layer of EVOH directly adjacent the layer of polypropylene wherein at least one of the polypropylene and EVOH layers comprises an adhesive such as maleic anhydride concentrate mixed therein to adhere the layer of polypropylene to the layer of EVOH.

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.