| 摘要 |
<p>Glycerine derivatives of formula A R<1>O-CH2-CH(OR<2>)-CH2-OR<3> (A) (wherein R<1>, R<2> and R<3>, which may be the same or different, each represents a hydrogen atom or a group of formula -CH(COOH)-CH2-COOH, with the proviso that at least one of R<1>, R<2> and R<3> represents other than a hydrogen atom), salts thereof and mixtures of two or more said compounds or salts are described. Such compounds are useful as detergent builders and are nitrogen and phosphorus free.</p> |
