EP0009171A2 - Process for the preparation of polymaleic acid from maleic anhydride in the presence of acetic anhydride and hydrogen peroxyde, and the use of the polymaleic acid thus prepared as builder
Liquid detergents containing an alpha-amino boronic acid - European Patent Office - EP 0583536 B1
Waschmittel/Weichspüler IV - Seite 35
EP0009171A2 - Process for the preparation of polymaleic acid from maleic anhydride in the presence of acetic anhydride and hydrogen peroxyde, and the use of the polymaleic acid thus prepared as builder