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BORON TRIFLUORIDE-HYDROGEN FLUORIDE CATALYZED SYNTHESIS OF POLY(AROMATIC SULFONE) AND POLY(AROMATIC KETONE) POLYMERS

  • US 3,442,857 A
  • Filed: 10/27/1966
  • Issued: 05/06/1969
  • Est. Priority Date: 11/10/1965
  • Status: Expired due to Term
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