LOW MOLECULAR WEIGHT POLY-amp;-HYDROXYACRYLIC ACIDS SALTS IN PER OXIDE BLEACHING

摘要

The invention relates to the stabilization of alkaline solutions of peroxide bleaching compounds using, as stabilizing agent, a water-soluble poly- alpha -hydroxyacrylic acid salt which in the sodium salt form has an average molecular weight Mw from 2000 to 10,000 and to the preparation of such a salt.