Abstract: Method of fabricating a polymeric tube for attachment to a prefabricated tubular polymer body comprising: selecting an ethylene copolymer functionalized with a conjugated vinyl moiety, and coextruding an outer tubular layer comprised of the selected functionalized ethylene copolymer together with at least one inner tubular layer comprised of a thermoplastic elastomeric material to form a mating tube having an outer surface comprised of the functionalized ethylene copolymer, a central tubular passage having a longitudinal axis and opposing ends.

Abstract: Molded article for medical tubing and the like, and method of manufacture. The molded article is a coextruded tube having a tube wall of a non-conductive thermoplastic polymer and a central tubular bore. The tube further includes a coextruded conductive strip of conductive fibers in a thermoplastic polymer matrix, the conductive strip being disposed within a tubular passage in the tube wall extending the length of the tube, or within the central tubular bore. The strip is made from a pultruded fiber/polymer compound that can be co-extruded in strip form in the tube to provide an electrically conductive path along the tube length. Advantages include ease of manufacture, and one or more of improved handling (during use), reduced profile and reduced material costs.

Abstract: Method of fabricating a polymeric tube for attachment to a prefabricated tubular polymer body comprising: selecting an ethylene copolymer functionalized with a conjugated vinyl moiety, and coextruding an outer tubular layer comprised of the selected functionalized ethylene copolymer together with at least one inner tubular layer comprised of a thermoplastic elastomeric material to form a mating tube having an outer surface comprised of the functionalized ethylene copolymer, a central tubular passage having a longitudinal axis and opposing ends.

Abstract: Method of fabricating a polymeric tube for attachment to a prefabricated tubular polymer body comprising: selecting an ethylene copolymer functionalized with a conjugated vinyl moiety, and coextruding an outer tubular layer comprised of the selected functionalized ethylene copolymer together with at least one inner tubular layer comprised of a thermoplastic elastomeric material to form a mating tube having an outer surface comprised of the functionalized ethylene copolymer, a central tubular passage having a longitudinal axis and opposing ends.

Abstract: Tubing comprising an inner layer, an outer layer and a middle layer, wherein the inner layer comprises a polyethylene, the outer layer comprises a thermoplastic polyurethane and the middle layer comprises an ethylene ethyl acrylate copolymer or an ethylene methyl acrylate copolymer or an anhydride grafted ethylene methyl acrylate copolymer, a copolymer of two or more of the acrylate copolymers or a mixture of two or more thereof.

Abstract: A tube comprising an inner layer, an outer layer and a barrier layer disposed between the inner layer and the outer layer, wherein the barrier layer is bound to the outer layer by a layer of adhesive disposed between the outer layer and the barrier layer and the barrier layer is bound to the inner layer by a layer of adhesive disposed between the inner layer and the barrier layer, wherein the inner layer comprises a polyethylene, the outer layer comprises a thermoplastic polyurethane and the barrier layer comprises a material that acts as a barrier to gas.

Abstract: Plastic packaging articles having an oxygen-scavenging composition, comprising: a compound comprising a ring having three ring carbon atoms forming an allyl group with an allylic hydrogen, the ring being bonded via a ring substituent to an ether or carboxylic linkage, the ether or carboxylic linkage being further bonded to a group having a molecular weight of at least 75 g/mol; and at least one transition metal.

Abstract: Active oxygen barrier compositions and articles made therefrom based on poly(hydroxyalkanoate), preferably poly(lactic acid), a polymer derived from lactic acid, also known as 2-hydroxy propionic acid, and a transition metal. This active barrier composition, which has been found to consume (scavenge) oxygen, can be utilized in monolithic and multilayer packaging articles, such as preforms and containers, for regulating the exposure of oxygen-sensitive products to oxygen and thus maintaining and enhancing the quality and shelf-life of the product. When provided in multilayer structures with adjacent poly(hydroxyalkanoate) layers, the package both consumes oxygen and provides a biodegradable package and/or one that may be included in a recycling stream.

Abstract: Methods are provided for intercalating, exfoliating and/or dispersing clay particles with a cationic polymer for form clay nanoparticles. The resulting clay nanoparticles may be incorporated in various polymeric articles, such as a container, preform, closure, liner, sheet or film.

Abstract: A plastic preform, container or article includes a multilayer wall having at least one layer of a matrix resin, at least one layer of a barrier resin, an adhesion-promoting material blended with the barrier resin and/or matrix resin, and an active oxygen barrier composition blended with the barrier resin and/or matrix resin. The adhesion-promoting material promotes bonding between the barrier and matrix resin layers and includes an amine polymer, preferably an imine polymer having a number of available primary, secondary or tertiary amine groups. The matrix resin preferably is an ester-containing resin, such as PET. The barrier resin preferably is EVOH. The active oxygen barrier composition includes a metal with an additive compound, and may also include a host polymer.

Abstract: A plastic container, preform or article includes a multilayer wall having at least one layer of matrix resin, at least one layer of barrier resin, and an adhesion-promoting material blended with the barrier resin and/or the matrix resin to promote bonding between the barrier and matrix layers. The matrix resin preferably is an ester-containing resin, most preferably a polyester such as PET. The adhesion-promoting material includes an amine polymer, preferably an imine polymer having a plurality of available primary, secondary or tertiary amine groups. An alkylene imine polymer is preferred, particularly a polyethyleneimine polymer.

Abstract: A mount for supporting a microphone on a helmet having an outer shell and for use with a transmission cable. The microphone is mounted on a flexible boom carrying leads connected to the microphone. The transmission cable carries electrical conductors. The mount includes an attachment assembly having a surface with a contour which conforms to the outer shell of the helmet. The attachment assembly is provided with a sleeve-like member adapted to receive the flexible boom and a retainer for receiving the transmission cable. Connectors are carried within the attachment assembly for electrically connecting the electrical conductors from the transmission cable to the leads to the microphone. A layer of an adhesive material is carried by the surface of the attachment assembly and is adapted to fasten the attachment assembly to the outer shell of the helmet. The layer of adhesive material permits the fastening of the attachment assembly to the helmet without impairing the structural integrity of the helmet.