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Karl Ziegler

It is the fourth-largest-selling plastic in America. Last year nearly seven billion pounds of polypropylene were stretched, blown, extruded, or molded into thousands of different products. Chances are the wrapper on your candy bar, the food-storage container in your refrigerator, the lining in your baby’s diaper, and the webbing in your lawn furniture were all made of it.

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Spring/Summer 1990 | Volume 6, Issue 1
It is the fourth-largest-selling plastic in America. Last year nearly seven billion pounds of polypropylene were stretched, blown, extruded, or molded into thousands of different products. Chances are the wrapper on your candy bar, the food-storage container in your refrigerator, the lining in…

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