Abstract: Packaging material comprised of a multilayer thermoplastic film structure may be used to form packaging articles, for example, stand up pouches, laminating films, and sealing/lidding stocks. The multilayer film structure contains a first layer comprised of an improved rubber modified styrenic copolymer, i.e. rubber modified styrene methyl methacrylate, a second layer comprised of a moisture barrier material, e.g. polyethylene, and a tie layer between the first and second layers made of a material selected from the group consisting of a styrene butadiene block copolymer, an ethylene vinyl acetate resin, and a maleic hydride modified ethylene vinyl acetate. An inner layer or layers of material having oxygen barrier properties, mechanical enhancement properties, or adhesive properties and a second tie layer comprising an appropriate material may be co-extruded with the first and second layers, and the tie layers for desired properties of the packaging material.

Abstract: A method and a circuit for detecting transmission of a radio frequency (RF) signal and generating control signals to regulate the operation of a RF converter remotely located from a corresponding transmitter are disclosed. The method comprises the following steps: (a) sensing the direction of a RF signal flowing in an RF transmission line, at a location proximate of the RF converter; (b) generating a low-power RF signal in response to the sensed direction; and (c) transforming the low-power RF signal into a control signal to regulate the operation of the RF converter.