| 摘要 |
This invention relates to an improved polymeric polyblend characterized by a blend of (A) a polymer of at least one monoalkenyl aromatic monomer having dispersed therein an amount sufficient to toughen said polyblend of a (B) diene rubber, said rubber being dispersed as crosslinked grafted rubber particles wherein said improvement comprises (C) said diene rubber being a particular polybutadiene rubber having a broad molecular weight range providing the polyblend with greatly improved impact strength. |
