Quaternary ureidomethyl phosphonium salts

摘要

Novel quaternary ureidomethyl phosphonium salts having the general formula <IMAGE> are prepared by condensing a urea having the formula RNHC(O)NR'R'' with a quaternary hydroxymethyl phosphonium salt having the formula (HOCH2)4P+X-in a molar ratio of at least 2:1. The products, which are characterized by the absence of residual hydroxymethyl groups, are useful as finishing agents for imparting flame retardant properties to cotton fabrics.