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US 4,009,151 AGranted
Polymers of 2-vinyl-fluorenone and derivatives thereof
AssigneeXerox Corporation
InventorsJames M. Pearson, John F. Yanus
Life of this patent
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Abstract
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.
Claims5
A homopolymeric composition consisting of repeating units characterized by the structural formula:
- ##STR6## wherein R.sub.1 is hydrogen or methyl, R.sub.2, R.sub.3 and R.sub.4 are hydrogen or aliphatic groups containing from 1 to 4 carbon atoms and n is a number representing the degree of polymerization.
A copolymeric composition consisting of units characterized by the structural formula:
- ##STR7## wherein R.sub.1 is hydrogen or methyl, R.sub.2 R.sub.3 and R.sub.4 are hydrogen or aliphatic groups containing from 1 to 4 carbon atoms and N is a number representing the degree of polymerization which are copolymerized with another vinyl monomer selected from the group consisting of styrene, vinyl chloride, methyl methacrylate, vinyl carbazole, vinyl naphthalene, isoprene, butadiene, a substituted styrene, acrylonitrile, vinyl pyridine and vinyl acetate.
Dependencies are inferred from the claim text.