Abstract: An emergency messaging device and related service is provided that does not rely on traditional communication network connections and may be used by individuals without means or opportunity to possess a conventional smartphone type of device. The emergency messaging device is configured as a simple, rudimentary device requiring only the capability to communicate via a short-range wireless link (e.g., Bluetooth) so as to broadcast its ID and location (using GPS data) when activated. A collection of such messaging devices that are located within range of each other form an ad hoc mesh network to relay the help message until it reaches a network-enabled communication device (such as a smartphone) that has been configured to transmit the message to a network-based emergency services platform servicing an API configured to determine and launch an appropriate response to the message.

Abstract: The tendency to crosslink of polymer compositions comprising polymer units derived from acrylonitrile and maleic anhydride is controlled by the use of boron compounds selected from boron oxide, boron acids and esters of boron acids.

Abstract: A process for reducing the extractable HCN content of packaging materials prepared from molten nitrile polymers which process comprises having styrene oxide in intimate contact with the molten nitrile polymer during the forming steps used to prepare the packaging materials.