| 摘要 |
<p>A blend having improved optical and good mechanical properties comprising (A) at least 75 weight %, preferably 85-95 weight %, of ethylene hydrocarbon copolymer (LLDPE) of density 0.916 to 0.930 manufactured by the transition metal catalysed gas-fluidised bed process and (B) not less than 1 weight %, of low density polyethylene or ethylene copolymer made by the free radical catalysed high pressure process. The LLDPE (A) is preferably ethylene/butene-1 or ethylenelhexene-1 copolymer. The high pressure polymer (B) is preferably an autoclave LDPE having a high die swell ratio and a MIR below 50.</p> |
