METHOD FOR PRODUCING ISOBUTYLENE RESIN POWDER

摘要

It is an object of the present invention to provide a resin powder composed of an isobutylene polymer having low contents of a remaining solvent and a remaining monomer in a product. The present invention is accomplished by a method of removing a solvent while suspending the isobutylene polymer solution in water with a surfactant to obtain resin slurry, and subjecting the resin slurry to steam stripping at a temperature ranging from 150°C to less than 180°C to produce a resin powder without deterioration in quality, the resin powder having significantly low contents of the remaining solvent and remaining styrene in the resin.