发明申请
US20050236728A1 Open-cell polypropylene particle foams 审中-公开
开孔聚丙烯颗粒泡沫

Open-cell polypropylene particle foams
摘要:
The invention relates to foam beads of propylene polymers which comprise more than 40% of open cells. They are produced by impregnating propylene polymer minigranules which comprise from 1 to 40% by weight of a cell opener with a volatile blowing agent in aqueous suspension and subsequently decompressing the mixture.
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