2-methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and deriv

Details 2-methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and deriv 2-methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and deriv

1990-03-16

1992-01-21

Willis, Jr., Prince

Compositions

Fluent dielectric

N-containing

252180, 252DIG11, 252178, 252 81, 562568, C02F 502, C02F 508, C11D 326

Patent

active

050825992

ABSTRACT:
2-Methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof of the general formula I ##STR1## in which X denotes hydrogen, alkali metal or ammonium which may or may not be substituted by C.sub.1 -C.sub.4 -hydroxyalkyl groups and Z denotes hydrogen or hydroxyl.
The compounds I serve as complexing agents for heavy metal ions or alkaline earth metal ions and as bleach stabilizers or builders in detergents and cleaning formulations.

REFERENCES:
patent: 2316636 (1943-04-01), Teeters
patent: 2401196 (1946-05-01), Senkus
patent: 2500019 (1950-03-01), Bersworth
patent: 2781392 (1957-02-01), Mannheimer
patent: 3056799 (1962-10-01), Tullar
patent: 3293176 (1966-12-01), White
patent: 3580950 (1971-05-01), Bersworth
patent: 4827014 (1989-05-01), Baur et al.
patent: 4973730 (1990-11-01), Baur et al.

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