Use of naphthalenesulfonic acid-formaldehyde condensates products as drying aids

   
   

Naphthalenesulfonic acid-formaldehyde condensates are used as assistants in the drying of aqueous polymer dispersions. Also described is a process for preparing polymer powders by drying, using these condensates; the polymer powders obtainable by the process; and their use as binders.

I condensati della acido-formaldeide di Naphthalenesulfonic sono usati come assistenti nell'essiccamento delle dispersioni acquose del polimero. Inoltre รจ descritto un procedimento per la preparazione delle polveri del polimero asciugandosi, usando questi condensati; il polimero spolverizza ottenibile tramite il processo; ed il loro uso come raccoglitori.

 
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> Process for the preparation of a rubber article having an outer polymer-coated surface and an inner chlorinated surface

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