Abstract
Recently, the study of new foamed plastics using supercritical fluid/ gas as blowing agent has devaloped rapidly and its achivements have become a center of attraction. Foamed plastics are used in various wide fields having effective characterization as materials reduction, light-weight, hight-adiabator and so on. But conventional foamed plastics have a serious problem that the strength decreases extremely owing to voids as a defect. In order to correct the defect, the development of a new processing technology using supercritical fluid/ gas as a blowing agent for foamed plastics, which is called to microcellular plastics arise in USA. In this paper, the present situation and development of this new formed plastics introduced.
