Acrylic acid-maleic acid copolymer (or its salt), its production process and use, and production process for aqueous maleic salt solution with low impurity content

• Main Authors: ISHIDA TAMAO, YAMAGUCHI SHIGERU, MAEDA YOSHIHIRO
• Format: Patent
• Language: English
• Published: 03.09.2002
• Edition: 7
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; COMPOSITIONS BASED THEREON; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF SINGLE SUBSTANCES AS DETERGENTS

The present invention provides: an acrylic acid-maleic acid copolymer (or its salt) which is excellent in performances, such as Mg2+ scavengeability, clay dispersibility in the presence of Mg2+, inhibitability upon Mg(OH)2 scale, and inhibitability upon CaCO3 scale; and a production process for such...