FIELD: polymer materials.
SUBSTANCE: invention provides polystyrene-based porous material for preparing, in particular, label material, wherein foaming is accomplished by adding foaming agent such as degradable foaming agent, e.g. one composed of carbon dioxide, nitrogen gas or even water, whereto is added thermoplastic elastomeric mixture consisting of at least one copolymer including styrene block and one regularly branched ethylene interpolymer.
EFFECT: reduced brittleness.
13 cl, 4 ex
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