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Plastics packaging: Foaming process cut costs in rigid PS sheet

from Modern Plastics Worldwide

Polystyrene supplier Styron introduced its CO2RE processing technology at last fall's K show in Düsseldorf, Germany, and now can point to some concrete commercial successes. The process involves injection of liquid carbon dioxide as a physical foaming agent into the polymer melt during extrusion of rigid PS sheet. The technology is available globally. more


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