| 摘要 |
Yellowing resistant, durable antistatic soil release agent: <IMAGE> wherein X is an aminoplast resin moiety having amino nitrogen atoms and 4 to 6 methylene groups, each of which methylene groups is attached to an amino nitrogen atom; Y1 is O(C2H4O)5-20R1; R1 is C1-5 alkyl; Y2 is O(C2H4O)5-88R2; R2 is C6-20 alkyl; Y3 is <IMAGE> R3 is C4-20 alkyl, C4-20 alkenyl or benzyl; R4 is C1-4 alkyl; A(-) is an organic or inorganic anion; each of a and b can be 0 to 2, provided that the sum of a and b is 1 to 2; c is 1 to 2; the sum of a, b and c is 2 to 4; each of m and n is at least 1 and the sum of m and n is 12 to 100; said agent having HLB of 14.5 to 18.0, Brookfield viscosity (20 weight % aqueous solution viscosity at 20 DEG C.) of 0.250 to 16.000 pascal seconds, electrical resistivity (Keithley Log R) on polyester fabric (20+/-2% RH, 23 DEG +/-1 DEG C.) less than 13.00 initially and 14.25 after 10 washes, and soil release (polyester fabric) at least 3 initially; process comprising (a) diluting agent with normally liquid medium to desired viscosity; (b) adding ammonium or mono-, di- or trivalent metal salt to achieve cloud point less than 100 DEG C. but greater than 25 DEG C., or adding polyacidic compound having second dissociation constant greater than 1x10-8 to pH 3.0 to 6.0, or adding both, (c) applying step (b) agent to substrate, and (d) drying, curing and recovering treated substrate.
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