首页> 外国专利> POLYMER COMPOSITION COMPRISING VERY HIGH MOLECULAR WEIGHT, LOW MOLECULARWEIGHT, AND HIGH MOLECULAR WEIGHT POLYETHYLENE FRACTIONS

POLYMER COMPOSITION COMPRISING VERY HIGH MOLECULAR WEIGHT, LOW MOLECULARWEIGHT, AND HIGH MOLECULAR WEIGHT POLYETHYLENE FRACTIONS

机译:包含非常高的分子量,低​​的分子量和高的分子量的聚乙烯组分的聚合物组合物

摘要

A polymer composition and a process for the production of this composition comprising a base resin is disclosed herein. The base resin includes a very high molecular weight component, a low molecular weight component, and a high molecular weight component having a weight average molecular weight higher than the weight average molecular weight of the low molecular weight component but lower than the weight average molecular weight of the very high molecular weight component. An amount of the very high molecular weight component in the base resin is 0.5 to 8 wt%. The very high molecular weight component has a viscosity average molecular weight of greater than 1100 kg/mol. The composition has FRR21/5 of equal to or greater than 38, a melt flow rate MFR21 of equal to or greater than 6.5 g/10 min and a viscosity at a shear stress of 747 Pa (eta747) of 450 to 3000 kPas.
机译:本文公开了聚合物组合物和包含基础树脂的用于生产该组合物的方法。所述基础树脂包括非常高的分子量组分,低的分子量组分和重均分子量高于所述低分子量组分的重均分子量但低于所述重均分子量的高分子量组分。分子量很高的成分。基础树脂中的极高分子量组分的量为0.5至8重量%。极高分子量组分的粘均分子量大于1100kg / mol。该组合物的FRR21 / 5等于或大于38,熔体流动速率MFR21等于或大于6.5g / 10min,并且在747Pa(eta747)的剪切应力下的粘度为450至3000kPas。

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