EXTRUDED FOAMED SHEET AND CONTAINER COMPOSED THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an extruded foamed sheet composed of a propylene-based resin composition the gel formation of which is reduced and which has increased melt tension and extremely improved expansion-moldability, and having excellent surface appearance even at a high expansion rate; and to provide a thermoformed container by using the foamed sheet.

SOLUTION: The extruded foamed sheet is obtained by extruding and foaming a propylene-based resin composition obtained by melt-kneading the following A to C and satisfying the relation of MT>7×(MFR)-0.8: A: 100 pts. wt. of a propylene-based resin having 0.01-100 g/10 min MFR; B: 0.001-1 pt. wt. of an organosilicon compound represented by general formula (1): XnSiYm(OR)4-(n+m)(wherein, X is a substituent containing a functional group reactive with an unsaturated carboxylic acid and/or an anhydride thereof; Y is a hydrogen atom, a halogen atom or a hydrocarbon group; and R is a hydrocarbon group); and C: 0.1-30 pts. wt. acid-modified propylene-based resin containing 0.001-1 wt.% unsaturated carboxylic acid and/or anhydride thereof, and having ≥0.7 dL/g intrinsic viscosity.

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