PURPOSE:To provide the subject composition which can give a highly expanded foam without detriment to its heat resistance by using clean carbon dioxide and to provide the subject foam made of this composition. CONSTITUTION:This composition is prepared by dissolving carbon dioxide in a resin composition comprising at least one thermoplastic resin selected between an olefinic resin and a styrenic resin and a crosslinked resin prepared by crosslinking a thermoplastic resin having a solubility constant of 0.4 or above for carbon dioxide. The solubility constant (k) is represented in the formula: C=kP wherein C is the concentration [cc/g] of the gas dissolved in the molten resin, (k) is the solubility constant [cc (STP)/g.atm], and P is the pressure [atm]. The objective foam is prepared by foaming this composition.

Air blowwoff port for air diffuser* air circulator* air conditioner* room cooler or heater* ventilating fan* etc*

Citations

Foamable thermoplastic resin composition and foam