FOAMABLE POLYOLEFIN COMPOSITIONS AND METHODS THEREOF

Foamed reactor made thermoplastic polyolefins (rTPOs), and articles made therefrom., are described. The compositions have an rTPO combined with a foaming agent. Tire foaming agent can be a physical blowing agent and/or a chemical foaming agent, and may include optional nucleating agents. Some compositions utilize a masterbatch having one or more chemical foaming agents to foam the rTPOs, The rTPOshave a large melt flow rate range and flexural modulus range that translate into a broad scope of potential applications and foamed architecture. This allows the combination of rTPOs and foaming agents to be fine-tuned for selected foaming application. 描述了发泡反应器制备的热塑性聚烯烃(rTPO)以及由其制备的制品。所述组合物具有与发泡剂组合的rTPO。该发泡剂可以是物理起泡剂和/或化学发泡剂，并且可以包括任选的成核剂。一些组合物利用具有一种或多种化学发泡剂的母料使rTPO发泡。rTPO具有大的熔体流动速率范围和挠曲模量范围，这转化为潜在应用和发泡结构的广泛范围。这允许对于所选择的发泡应用微调rTPO和发泡剂的组合。