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Fluoroaliphatic radical containing carbodiimides

  • US 4,024,178 A
  • Filed: 03/03/1975
  • Issued: 05/17/1977
  • Est. Priority Date: 03/06/1972
  • Status: Expired due to Term
First Claim
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1. A solvent-soluble fluoroaliphatic radical-containing carbodiimide consisting essentially of from 1 to a plurality of carbodiimide groups, terminal organic radicals derived from mono- or polyisocyanate and free from isocyanate-reactive hydrogen atoms and connected to carbodiimide and, when two or more carbodiimide groups are present, polyvalent organic linking groups derived from organic polyisocyanate and free from isocyanate-reactive hydrogen atoms linking successive carbodiimide groups;

  • fluoroaliphatic groups of 3 to 20 carbon atoms forming a part of said terminal organic radicals or organic linking groups in amounts such that said carbodiimide as a whole includes from 15 to 45% by weight of carbon-bonded fluorine and said carbodiimide as a whole exclusive of fluoroaliphatic radicals contains at least 12% by weight of carbodiimide groups.

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