Patent ID: 8080506

Claim:
A reactive purge composition for cleaning polymer processing equipment wherein the reactive purge composition comprises: i) greater than 50 wt. % of a polymeric carrier component based on the total weight of the reactive purge composition; wherein the polymeric carrier component includes one or more polymers; ii) at least about 0.1 wt. % of a chain scission catalyst component, based on the total weight of the reactive purge composition, wherein the chain scission catalyst is dispersed in the polymeric carrier component; and iii) a water generating component including aluminum trihydrate, sodium bicarbonate, potassium bicarbonate, a metal chloride hydrate, a metal sulfate hydrate, a metal nitrate hydrate, a metal silicate hydrate, a metal carbonate hydrate, or any combination thereof; wherein the reactive purge composition is a feedstock material in the form of a plurality of pellets, granules, rods, powder or other particles.