Sunoco Chemicals has developed a line of highly crystalline copolymers that increase ductility and low-temperature impact resistance.
The Philadelphia-based firm says its 9000 series is well-suited to the automotive industry and compounders. In addition to strength improvements, the copolymers based on ethylene and propylene improve part appearance. They can be used as a core building block to meet specific application requirements.
The four products in the 9000 series have melt flows of 15, 30, 60 and 100 grams per 10 minutes, respectively. They can boost Charpy impact strength by at least 25 percent in typical compounds, according to Sunoco.
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