A process for forming a powder of a neutralized sulphonated polymer.

摘要

The present invention relates to a process for the forming of a powder composition of a sulphonated polymer, wherein the powder has a volume density of about 15 to about 30 pounds cubic foot and a water content of less than 2 wt.% wherein the polymer is selected from neutralized sulphonated elastomeric and thermoplastic polymers. The process involves sulphonating a cement of the polymer in solvent, neutralizing, adding water to the cement, suspending the gel thereby formed, removing solvent, separating and drying the powder thereby formed.