| http://www.w3.org/ns/prov#value | - As used in the present invention the phrase "styrene or styrene homolog is defined to include a monomer or mixture of monomers having the formula ##EQU1## wherein R represents hydrogen, a halogen such as chlorine or bromine, a lower alkyl, including halogenated alkyls, containing 1-4 carbon atoms in alkyl moiety such as methyl, ethyl, propyl, isopropyl, butyl, and halogenated derivatives thereof.
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