Poly-perfluoroalkyl substituted polyamines as grease proofing agents for paper and foam stabilizers in aqueous fire-fighting foams

摘要

Perfluoroalkyl-allyloxy- and perfluoroalkyl-iodopropyloxy-substituted polyaminoacids or poly-RF-fluoroallyl-substituted polyaminoacids which contain, in random distribution, q units of A-1, r units of A-2, s units of A-3 and t units of A-4 in which A-1 and A-2 are perfluoroalkyl-substituted amino groups of the formulae <CHEM> A-3 is a hydrophilically substituted amino or amido group of the formula <CHEM> and A-4 is a substituted amino or amido group of the formula <CHEM> where the variables are as defined herein, are useful to provide oil repellency to paper and as foam stabilizers in alcohol resistant - aqueous fire-fighting foam fire-fighting foam compositions.