A method of recovering a polymer, especially polyvinylchloride, from solution in a solvent by precipitating using a non-solvent in the presence of two dispersant agents with differing degrees of hydrolysis

摘要

A method of recovering one or more polymers in solution in a solvent by precipitation using a non-solvent liquid in which the precipitation medium comprises two dispersants, a first dispersant with a greater affinity for the non-solvent and a second with a greater affinity for the solvent. An independent claim is included for a method of recycling one or more polymer based articles by turning into 1cm to 50cm fragments if necessary, placing the article or its fragments into a solvent capable of dissolving the polymer and recovering using the claimed method.