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US09290600B2 Foam produced from polypropylene with low gel content 有权
泡沫由聚丙烯制成,凝胶含量低

Foam produced from polypropylene with low gel content
Abstract:
Process for providing a polypropylene composition comprising a branched polypropylene in which a polypropylene with a melt flow rate MFR2 (230° C.) of more than 0.5 g/10 min is reacted with a thermally decomposing free radical-forming agent and optionally with a bifunctionally unsaturated monomer obtaining thereby the branched polypropylene, wherein the polypropylene composition has a F30 melt strength of more than 20.0 cN and a V30 melt extensibility of more than 200 mm/s.
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