Packing material that can be shaped under the effect of heat
作者： Georg E. Ernstsson , Herwig Pupp , Birger N. Nilsson , Olof S. Stark
DOI:
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摘要: A foamed plastic material of polyethylene or polystyrene capable being heat-shaped for use in making packing containers wherein by stretching the foam cells therein are given a lenticular elongated structure. In case cell structure, produced bi-axial operation, individual situated layers parallel planes. an mono-axial with their longitudinal axes
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