| 摘要 |
1444864 Alpha-hydroxyacrylic acid/acrylic acid copolymers and salts thereof HOECHST AG 24 May 1974 [28 May 1973] 23327/74 Heading C3P Alpha-hydroxyacrylic acid/acrylic acid copolymers containing 9-85 mole per cent of acrylic acid and having a defined relative viscosity are produced by hydrolysis of corresponding alpha-chloroacrylic acid/acrylic acid copolymers with at least a stoichiometric amount of water, the hydrolysis being effected at 80-100� C. with thorough agitation. The copolymers may be neutralized to form ammonium or alkali metal salts. Use.-As builders in detergent compositions. |
