prov:value
| - acrylonitrile, alpha-chloroacrylonitrile, methacrylonitrile, ethacrylonitrile; the alcohol esters of acrylic and substituted acrylic acids, such as methyl methacrylate, methyl acrylate, methyl eth-acrylate, butyl methacrylate, isobutyl dichloro acrylate, and other acrylic esters of alcohols, preferably having one to six carbon atoms; styrenes, such as styrene itself, halo, cyano, alkyl, aryl, and
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