Process for producing thermoplastic resin polymers
AssigneeXerox Corporation
InventorsPeter M. Kazmaier, Michael K. Georges, Richard P. N. Veregin, Barkev Keoshkerian, Gordon K. Hamer, Karen A. Moffat, Marko Saban
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Abstract
A free radical polymerization process for the preparation of a thermoplastic resin or resins includes the in situ formation of a stable free radical agent from a precursor material in a reactor vessel, introducing a free radical initiator and at least one polymerizable monomer compound into the reactor vessel, and heating a mixture of the free radical initiator, the stable free radical agent, and the polymerizable monomer compound(s) in the reactor vessel to form a thermoplastic resin.
Claims15
A free radical polymerization process for the preparation of a thermoplastic resin, comprising:
- (a) forming a nitroxide stable free radical agent from a precursor material in a reactor vessel;
- (b) introducing a free radical initiator and at least one polymerizable monomer compound into said reactor vessel;
- and
- (c) heating a mixture comprised of said stable free radical initiator, said nitroxide stable free radical agent, and said at least one polymerizable monomer compound in said reactor vessel at a temperature of from about 100° C. to about 160° C. to form a thermoplastic resin having a molecular weight distribution of from about 1.1 to about 2.0.
A free radical polymerization process for the preparation of a thermoplastic resin, comprising:
- (a) forming a nitroxide stable free radical agent from a precursor material in a reactor vessel;
- (b) introducing a free radical initiator and at least one polymerizable monomer compound into said reactor vessel;
- and
- (c) heating a mixture comprised of said stable free radical initiator, said nitroxide stable free radical agent, and said at least one polymerizable monomer compound in said reactor vessel to form a thermoplastic resin.
Dependencies are inferred from the claim text.