| 摘要 |
In one aspect, the present invention is a multilayer coextruded sheet which comprises: a) a sheet layer comprising: I) from 40 to 60 weight percent of an olefin polymer; II) from 25 to 45 weight percent of an impact modified monovinylidene aromatic polymer, comprising from 1 to 25 weight percent of a rubber and 75 to 99 weight percent of a monovinylidene aromatic polymer matrix having a molecular weight (Mw) from 50,000 to 400,000, said weight percents being based on the total weight of said impact modified, vinylaromatic polymer; III) from 8 to 25 weight percent of a compatibilizing polymer, which acts to increase interfacial adhesion between components I) and II); and b) a sheet layer comprising a monovinylidene aromatic polymer. |
