The use as a foam stabilizer in the perfluoro- alkyl displacement amino acid oligomer or the polymer, and the water fire foam medicine and as a plectrum oilpaper and a finished medicine of the web

摘要

Perfluoroalkyl-substituted amino acid oligomers or polymers obtainable from (A) an aliphatic diamino acid having 3 to 10 carbon atoms such as lysine, (B) a chain extender such as epichlorohydrin, a dihalide or an aliphatic diepoxide, (C) an amino-reactive allyl compound and (D) a perfluoroalkyl iodide, and, optionally, other reactants, are useful as grease-proofing agents for paper and are excellent foam stabilizers for Aqueous Fire-Fighting Foam (AFFF) formulations used on polar solvent fires.