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HIGH MELT STRENGTH POLYPROPYLENE AND EXTRUSION PROCESS FOR PRESERVING MELT STRENGTH
HIGH MELT STRENGTH POLYPROPYLENE AND EXTRUSION PROCESS FOR PRESERVING MELT STRENGTH
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机译:高熔体强度聚丙烯和保持熔体强度的挤出工艺
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摘要
A method of melt blending a polypropylene and the melt blended polypropylene therefrom comprising providing a base polypropylene having a MFR of less than 15 g/10 min and a molecular weight distribution (Mw/Mn) within the range from 5 to 16 and comprising hindered phenol and phosphorous type antioxidants and within the range from 5 ppm to 4000 ppm of an alkyl radical scavenger relative to the total weight of the components to form a melt blended polypropylene; melt blending the melt blended polypropylene at a temperature of at least 210°C; and isolating a melt blended melt blended polypropylene.
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