Patent ID: 6528546
Filing Date: 2003-03-04
Classification: B32B,C08G,C08J,C08L,D21H,Y02W,Y10S

Abstract:
A method of obtaining recycled hydroxy-phenoxyether polymers from articles comprising hydroxy-phenoxyether polymers, comprising:providing an article comprising a hydroxy-phenoxyether polymer; contacting the article with an aqueous solution comprising 1-50% acid by weight to at least partially dissolve the hydroxy-phenoxyether polymer to form an acidic hydroxy-phenoxyether polymer solution; separating the acidic hydroxy-phenoxyether polymer solution from any solids present; adding a base to the acidic hydroxy-phenoxyether polymer solution to form a hydroxy-phenoxyether polymer precipitate; and separating the hydroxy-phenoxyether polymer precipitate.