Composite materials are provided. A representative material is configured as a composite membrane for gas separation, vapor separation, or pervaporation. The composite membrane comprises at least a first polymer and a second polymer. Processes for the production of composite materials, in particular composite membranes, also are provided.

 
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< Catheter having plurality of stiffening members

> Cathode active material, cathode material having the cathode active material, secondary aqueous lithium-ion battery having the cathode material, and method for preparing the cathode active material

> Nonaqueous electrolyte secondary battery
~ 00577