| 摘要 |
Sulphomethylated amino-esters which are the reaction products of an alcanolamine of formula I HO-R4-NHR1 I where R1 is hydrogen, C1-4alkyl, -R5-OH or &lparstr& CH2 &rparstr& n NR2R3 R2 and R3 are, independently, hydrogen, -R5-OH or C1-4alkyl R4 and R5 are, independently, 1,2-ethylene or 1,2-propylene and n is 2 or 3 or a mixture thereof, with a fatty acid of formula II R-COOH II where R is optionally hydroxy substituted C11-21alkyl and/or alkenyl, the product amino-esters being sulphomethylated with, e.g., formaldehyde or a formaldehyde-yielding compound and a sulphite, SO2 or a compound of formula V HO-CH2-SO3M V where M is H or a cation, are useful as non permanent finishing agents for fibrous materials, particularly as softening agents for cellulosic materials. |
