prov:value
| - The ??-olefins suitable for use in the preparation of the elastomers herein contain from 3 to about 20 carbon atoms and include propylene, 1-butene, 3-methylbutene, 1-pentene, 4-methyl-i-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, and vinyl aromatic monomers such as styrene, ??-methyl styrene and the like, with propylene being the ??-olefin of choice.
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