Abstract: A self-cleaning cat waste disposal device having a portable suitcase style container structure with two substantially identical compartments pivotally connected together along one edge thereof and latchable together by a three-way handle along an opposite edge thereof. A pivotally mounted screen unit is included between the container compartments and latchable to one or the other by the handle structure. The handle structure functions in a three-way manner and permits the screen unit and the two container units to be all three firmly latched together, or the screen unit to be positively latched to one container unit or the other. One embodiment of the device provides for a single removable trap unit associated with the pivotal connection for both the container compartments and with a guide funnel arrangement for catching waste from one of the compartments or the other when the device is being operated.

Abstract: Sulfur dioxide can be adsorbed from gas mixtures using cross-linked, water-insoluble polymers of N-glycidylpiperazine or N-glycidyl polyalkylpiperazines as the adsorbents.

Abstract: Sulfur dioxide can be adsorbed from gas mixtures using cross-linked, water-insoluble polymers of N-glycidyl piperazine or N-glycidyl polyalkylpiperazines as the adsorbents.