| 摘要 |
<p>A laminated multilayer material composed of (A) a layer of a graft-modified ethylene resin grafted with an unsaturated carboxylic acid or a functional derivative thereof and (B) an oxygen- or nitrogen-containing polar resin layer or a metal layer in contact with the layer (A); wherein the layer (A) consists of… (i) 1 to 100% by weight of graft-modified ethylene resin containing up to 15 mole% of at least one alpha-olefin and has an MI2/[ eta ]<-8.77> ratio of not less than 15 and a density of 0.88 to 0.98 g/cm<3>, and… (ii) 99 to 0% by weight of an unmodified ethylene polymer containing 0 to 50 mole% of at least one alpha-olefin and having an MI2/[ eta ]<-8.77> ratio is absolute value of not less than 15 and a density of 0.86 to 0.96 g/cm<3>, such that the layer (A) has (a) an ethylene content of not less than 80 mole%, (b) a content of the carboxylic acid or derivative of 0.01 to 10% by weight, (c) a density of 0.88 to 0.98 g/cm<3>, and (d) an MI10/MI2 ratio of from 5 to 18, wherein MI2 and MI10 are melt indices at 190 DEG C under loads of 2.16 kg and 10 kg, respectively and [ eta ] in the intrinsic viscosity (dl/g) at 125 DEG C in decalin solution. The laminated material is particular suited for use as packaging or building material.</p> |
