Cured phosphonitrilic elastomers having alkyl-substituted aryl units
Process for the production of linear polyphosphazenes Patent #: 5138008
ApplicationNo. 927701 filed on 08/10/1992
US Classes:528/30, From silicon-containing reactant having at least one polyvalent atom other than carbon, oxygen, or nitrogen528/21, Material is a nitrogen-containing compound528/23, Material contains a phosphorus or sulfur atom528/399Phosphorus reactant contains a nitrogen atom
ExaminersPrimary: Marquis, Melvyn I.
Attorney, Agent or Firm
Foreign Patent References
International ClassC08G 077/22
Foreign Application Priority Data1991-04-06 WO
AbstractPolyphosphazenes are produced by polymerizing a silylated phosphinimine in the presence of an initiator, preferably an anionic initiator at temperatures below those typically necessary for such polymerization reactions. The polyphosphazenes obtained are suitable for use in the production of elastomeric and thermoplastic materials.