PRODUCTION OF WATER-SOLUBLE DICARBOXYLIC ACID-BASED COPOLYMER

PROBLEM TO BE SOLVED: To provide a method for producing a water-soluble dicarboxylic acid- based copolymer, in which amounts of residual monomer and residual polymerization initiator are reduced, containing an unsaturated dicarboxylic acid and an unsaturated monocarboxylic acid, and suitable as raw...

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Bibliographische Detailangaben
Hauptverfasser:	AOYAMA MASAHIRO, ATSUJI MINORU
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES BLASTING CANDLES CHEMISTRY CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE ORHEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS COMPOSITIONS BASED THEREON DETERGENT COMPOSITIONS DETERGENTS DYES FATTY ACIDS THEREFROM HEAT EXCHANGE IN GENERAL HEATING LIGHTING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES RECOVERY OF GLYCEROL RESIN SOAPS SOAP OR SOAP-MAKING THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE USE OF SINGLE SUBSTANCES AS DETERGENTS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a water-soluble dicarboxylic acid- based copolymer, in which amounts of residual monomer and residual polymerization initiator are reduced, containing an unsaturated dicarboxylic acid and an unsaturated monocarboxylic acid, and suitable as raw materials for detergents and water treating agents as constitutional monomers. SOLUTION: This method for producing a water-soluble dicarboxylic acid- based copolymer comprises adding a polymerization initiator in an amount of 10-90% based on total weight used for polymerization reaction to a heated polymerization medium or a polymerization medium to which total amount or a part of an unsaturated dicarboxylic acid (salt) to be polymerized is added, then adding a monomer mixture containing an unsaturated monocarboxylic acid (salt) and residual amount of the unsaturated dicarboxylic acid (salt) thereto and carrying out polymerization.