| 摘要 |
<p>Injection stretch blow molded (ISBM) articles and methods of forming the same are descpbed herein The ISBM articles generally include a propylene-based impact copolymer, defined as a copolymer having two or more distinct phases, at least one of which has rubbery properties A rubber phase, such as ethylene-propylene rubber, may be incorporated into the polymer matrix by mechanical blending, copolymenzation or other methods Impact copolymers useful in the articles and methods described herein can include copolymers of propylene and from about 1.0 percent to about 15.0 percent of one or more comonomers The comonomer is ethylene i one specific embodiment Articles of the invention, which can be useful as beverage or dairy containers, can be opaque or semi- opaque, show improved impact resistance properties and can be produced at higher rates of production than were previously possible</p> |
