2 Sentences With "polypropylenes"

How to use polypropylenes in a sentence? Find typical usage patterns (collocations)/phrases/context for "polypropylenes" and check conjugation/comparative form for "polypropylenes". Mastering all the usages of "polypropylenes" from sentence examples published by news publications.

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The company has vast overseas operations and a joint venture with Netherlands-based Montell and Nippon Petrochemicals to make and market polypropylenes. In March 2001, SDK merged with Showa Denko Aluminum Corporation to strengthen the high-value-added fabricated aluminum products operations, and is today developing next-generation optical communications-use wafers. Showa Denko is a member of the Mizuho keiretsu.
The index is measured by determining the fraction of the polymer insoluble in boiling heptane. Commercially available polypropylenes usually have an isotactic index between 85 and 95%. The tacticity effects the polymers physical properties. As the methyl group is in isotactic propylene consistently located at the same side, it forces the macromolecule in a helical shape, as also found in starch.