| 摘要 |
Novel quaternary phosphonium salts, bearing one or more carbamate groups attached through nitrogen, are prepared by condensing a hydroxymethyl phosphonium salt having the formula [R4-nP(CH2OH)n]+X- with an alkyl carbamate having the formula NH2CO2R'. The products, which have the general formula [R4-nP(CH2NHCO2R')n]+X-, are useful as finishing agents for imparting flame retardant or durable press properties to cotton fabrics.
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