Patent ID: 6060445
Filing Date: 2000-05-09
Classification: B29C,C11D

Abstract:
A cleaning composition for cleaning a first polymer composition from a polymer processing apparatus, said cleaning composition comprising:(a) a second polymer composition which has an affinity of""Ad"" between 50 and about 1500where ""Ad"" is adhesive strength (grams/15 mm width) between the first and second polymer compositions in a multiple layer cast coextruded film; and(b) at least one metal salt composition wherein the respective metal is selected from alkaline earth and transition metals, said metal salt composition being present in said cleaning composition in amount of about 0.001 weight percent to about 10 weight percent based on total weight of said cleaning composition,wherein the first polymer composition is an ethylene vinyl alcohol copolymer and the cleaning composition reduces gel formation when compared to a cleaning composition not containing the at least one metal salt composition.