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Polyphosphates of divalent aryl hydrocarbons

  • US 2,520,090 A
  • Filed: 12/30/1947
  • Issued: 08/22/1950
  • Est. Priority Date: 12/30/1947
  • Status: Expired due to Term
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1. A PLASTICIZING AGENT CONSISTING OF A POLYPHOSPHATE COMPOUND OF THE FOLLOWING GENERAL FORMULA:

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