摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.