Abstract: The present invention provides an apparatus and method for controlled release of a fumigant into a wooden structure to prevent decay of that structure. According to the present invention, a fumigant in an ampule or container is inserted into the wooden structure. The ampule or container is made of a polymeric material that does not react with the fumigant, but having walls which are permeable to the fumigant such that, when inserted into the wooden structure, the rate of release of the fumigant through the walls of the ampule is slow enough to continuously treat and arrest decay of the wooden structure, particularly decay caused by fungi, over extended periods of time (i.e., 1, 5, 7, 10, 15, 20 or 30 years). The rate of release of the fumigant can be controlled by the type of fumigant, the shape of the container, the specific polymer used to make the container, and by the thickness of the container wall.

Abstract: A packaging film includes a heat sealable layer coated with one or more antifogging agents disposed in a binder, an antiblocking agent, and no more than about 800 ppm slip agent. The heat sealable layer includes a polymer that includes mer units derived from ethylene while the binder includes a polymer that includes mer units derived from an ester of (meth)acrylic acid and/or vinyl acetate monomers. The antiblocking agent can be in any layer of the film where it provides the desired effect. Such a film, as well as packages made therefrom, can be used to package a variety of products, having particular utility with respect to moist products.

Abstract: The present invention relates to a plastic container which has a good biodegradability and a moisture permeability manufactured by using a novel polyester resin composition under a specific injection and extrusion molding conditions in the forms of a bottle, a blister pack, a medicated paper pouch and the like, which thus enables to preserve the contents of the container such as pharmaceutical drugs, food and beverages dry without the addition of desiccants and can be disposed of without causing environmental contamination.

Abstract: A packing for animal feed is described which consists of a three-layer foil, whereby an aluminium foil is coated on one side with polyethylene terephthalate and on the opposite-lying side with chlorinated polypropylene.

Abstract: A heat insulating paper cup having an improved seal. The cup can include a body member having an inside surface and outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated (or in some instances partially coated) on its outside surface with a foamed low density polyethylene, and on its inside surface with an unfoamed modified low density polyethylene. The bottom panel member is coated on its upper surface with or an unfoamed low density polyethylene or foamed or unfoamed modified low polyethylene. The body member and bottom panel are oriented and joined to form a heat seal at an interface between a portion of the unfoamed modified low density polyethylene coated on the inside surface of the body member and a portion of unfoamed low density polyethylene or unfoamed modified low density polyethylene coated on the upper surface of the bottom panel member.

Abstract: A polyester-surfaced heat-shrinkable multilayer film exhibiting good printability and adaptability to various automatic packaging processes is provided, including an outer surface layer (a) comprising a polyester resin, an intermediate layer (b) comprising a polyamide resin and an inner surface layer (c) comprising a sealable resin. The film exhibits a heat-shrinkable stress at 50° C. of at most 3 MPa both in longitudinal direction and in transverse direction, and a hot water shrinkability at 90° C. of at least 20%.

Abstract: The invention relates to a method of manufacturing tubular films from a solution of a mixture if cellulose and proteins by extrusion blowing the solution over an air gap into a precipitation bath, and to the films produced with this method and their application.

Abstract: Hot-fill polyester bottles and other containers characterized by an absence of visually discernable haze are manufactured from a polyester polymer containing up to about 250 ppm, and preferably from about 40 ppm to about 50 ppm, of a uniformly dispersed barium sulfate having an average particle size of less than about 0.1 micron. The polymer may be first formed into a preform, which may have an average wall thickness of from about 4 mm to about 6 mm, that is subsequently blown into the desired container configuration.

Abstract: A self-reinforcing semifinished product capable of thermoplastic shaping, composed of a single-layer sheet made from filled poly(meth)acrylate, where the semifinished sheet product contains a filler and has an upper side and a lower side, where the upper side is depleted with respect to fillers and the lower side is enriched with respect to fillers, in relation to the average filler content and a process for producing the semifinished products. The semifinished poly(meth)acrylate sheet products of the invention may be used in producing sanitary items, such as shower trays and washbasins, preferably by a high-performance shaping process, such as thermoforming.

Abstract: A thin-walled hollow cylinder is made from fiber-reinforced plastics material, the cylinder wall of which is composed of at least one layer having fibers with at least one oriented direction of the fibers, and the total wall thickness dtot lying in the range from 10 to 1000 &mgr;m, and the ratio dtot/D being≦0.0025. The oriented direction(s) of the fibers are selected depending on the intended final application. Examples include, inter alia, multi-layer laminates made from carbon/epoxy, used for the production of a cylinder of this nature, having at least one layer with an oriented direction of the fibers which is parallel or perpendicular to the longitudinal axis of the cylinder.

Abstract: Polypropylene ultra-lightweight food containers are provided which have good impact resistance at low temperatures. Such polypropylene ultra-lightweight containers can be used for packaging refrigerated or frozen food products. The use of polypropylene to prepare such containers allows for significant reduction in the thickness of container components without significant reduction in impact strength. The polypropylene ultra-lightweight containers of the present invention are prepared by injection molding. The polypropylene useful in preparing the food containers of this invention contains about 15 to about 25 molar percent polyethylene and has a melt flow index of about 30 to about 50 g/10 min. Weight reductions of about 20 to 40 percent can be obtained without significantly reducing impact resistance as compared to conventional polyethylene containers.

Abstract: A method for forming a balloon for a dilation catheter is provided herein. The method includes the steps of: (i) positioning a tube in a preconditioned mold; (ii) expanding the tube in a preconditioned mold to form a parison; (iii) positioning the parison in a balloon mold; and (iv) expanding the parison within the balloon mold to form the balloon. Thus, the tube is initially expanded into a parison in the preconditioned mold. Subsequently, the parison is expanded into a balloon in the balloon mold. Because of this unique manufacturing process, polyester block copolymers can be formed into balloons. Some of these polyester block copolymers could not be formed into a balloon using prior art blow molding processes. The resulting balloon exhibits superior characteristics, including relatively thin and consistent walls, soft texture, low uninflated crossing profile, expansion in a predictable fashion, and good tensile strength.

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 preferably consists essentially of a blend of matrix polymer material, particulate barrier polymer material and compatibilizer material. The heat and pressure of compression forms the particles of barrier polymer material into platelets that are oriented essentially parallel to the plane of the closure base.

Abstract: The present invention provides a method for producing a packaging laminate having excellent gas barrier properties. The method involves applying a solution or dispersion of starch or starch derivative to a surface of a substrate of paper or paperboard, and applying a layer of plastic to said starch or starch derivative so as to modify the properties of same such that the starch or starch derivative provides a gas barrier property.

Abstract: An oxygen-absorbing material including a transition metal compound and one or more thermoplastic resins, when used for a molded product such as container, exhibits excellent gas-barrier and oxygen-absorbing properties. The material absorbs oxygen from contents and blocks oxygen from entering so that the contents can be maintained in an oxygen-free state for a long period of time. An excellent oxygen-absorbing property is achieved by an amino group content of 20 mmol/kg or lower in at least one thermoplastic resin and by lowering the crystallinity of the thermoplastic resin.

Abstract: A tray for carrying magnetoresistive heads of magnetic disks which is obtained by molding a resin composition comprising 100 parts by weight of a thermoplastic resin material and, incorporated therein, from 0.1 to 8 parts by weight of carbon fibrils having a fiber diameter of 100 nm or smaller and a fiber length/fiber diameter ratio of 5 or larger. The tray has a stable surface resistivity in the range of from 104 to 1012 &OHgr;/□, has an even surface state, and hardly generates particles upon scratching, wearing, or cleaning.

Abstract: A waterproof bag and a method of producing the waterproof bag are disclosed. The method includes applying first and second waterproof films respectively onto first and second outer surfaces of a base component, such that the base component includes first and second non-laminated outer surface areas; refolding the base component so as to position the first and second non-laminated outer surface areas in certain regions of the base component; and applying third and forth waterproof films respectively onto the first and second non-laminated outer surface areas of the base component and onto first and second end portions of the first and second waterproof films.

Abstract: The invention is a composition made by mixing a multifunctional acrylate with an aminofunctional silane and an ethylenically unsaturated acid to form a reaction product, optionally dissolved in a solvent, characterized in that the multifunctional acrylate has a molecular weight of from about 100 to about 3000. The composition can be coated on a substrate, then optionally exposed to moisture and treated to initiate a free radical reaction. The invention can be applied to a variety of substrates used in packaging applications. The reaction mixture can further be cured by heating in the presence of moisture. The free radical reaction can be initiated by electron beam irradiation, ultraviolet radiation, gamma radiation, and/or heat and chemical free radical initiators.

Abstract: Multi-layered, coinjection stretch-blow molded containers are obtained by stretch-blow molding a preform prepared by coinjection molding a polyester resin and an EVOH resin blend in which one of the EVOH resins is dispersed as particles in an EVOH resin matrix. Containers prepared with this EVOH blend have good impact delamination resistance, good gas-barrier properties, and high transparency is high, even without an adhesive layer. The EVOH blend is composed of two EVOH resins having different ethylene contents and degrees of saponification. The blend exhibits at least two crystal fusion peaks by DSC.

Abstract: A container made of polycarbonate resin is disclosed. The container is characterized in that the polycarbonate is prepared by the phase interface process that is characterized in that the aqueous solution of an alkali salt of a bisphenol used, contains dissolved oxygen in an amount less than 150 ppb. The process for making the container is also disclosed.