Buna-rubber meaning

bo͝onə, byo͝o-
Any of a family of synthetic rubbers made from the polymerization of butadiene with a sodium catalyst. Copolymers including styrene or acrylonitrile are the most common members of this group.
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Origin of buna-rubber

  • From Buna former trademark for such rubber

    From American Heritage Dictionary of the English Language, 5th Edition