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US4009151A Polymers of 2-vinyl-fluorenone and derivatives thereof 失效
2-乙烯基芴酮及其衍生物的聚合物

Polymers of 2-vinyl-fluorenone and derivatives thereof
摘要:
Disclosed is a composition of matter characterized by the structural formula: ##STR1## wherein R.sub.1 is hydrogen or methyl and R.sub.2, R.sub.3 and R.sub.4 are hydrogen, halogen or aliphatic groups containing 1 to 4 carbon atoms. Also disclosed are vinyl polymers of the above compounds.
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