Application of leaves based on polymers of styrene for the manufacture of bodies of molding by the process of forming deep vacuum

摘要

Sheets produced by the extrusion of a mixture of about 85 - 95 percent by weight of polystyrene or semi-impact-resistant polystyrene and about 5 - 15 percent by weight of a diene-styrene block copolymer having the structure S-B-S wherein S represents the styrene structure and B represents the butadiene or isoprene structure are used for the manufacture of molded articles in the vacuum-forming or thermoforming method.