| 摘要 |
<p>Rigid vinyl halide polymer compositions, substantially free of liquid ester type plasticizers, and containing styrene copolymer process modifiers, copper oxalate and an amine molybdate have improved impact resistance when there is also present small amounts of copolymers of ethylene and vinyl acetate and graft copolymers of methacrylates, butadiene, and styrenes (MBS) polymers, which compositions form less smoke than when either of these impact modifiers alone is included in the compositions.</p> |
