Key Features, Properties and Grades

The uniqueness of these polymers is derived from a combination of performance attributes. The SBC family of polymers offers outstanding clarity and excellent impact strength or shatter resistance, and are easy to process. Primarily, these type polymers fill the gap between low-cost commodity materials and high-cost performance polymers. For example, crystal polystyrene offers excellent clarity, but very poor impact resistance, and polycarbonate offers excellent impact resistance, but at a significant cost premium. 

Izod impact strength, notched D2562 0.4 0.75 No Break in-lb 

During the product introduction phase, there were relatively few grades of SBC available for customers to select from. The same grades were used in many different applications and processes. The same grade of SBC had to have enough melt strength to be used to blow mold a large part but also have adequate flow 

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