METHOD FOR PREPARING GRAFT POLYMER
PROBLEM TO BE SOLVED: To provide a method for efficiently preparing a graft polymer excellent in cement-dispersing performance. SOLUTION: The method for preparing the graft polymer comprises a step of carrying out an esterification reaction between: a polymer A containing a specific structural unit...
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| creator | OKAUCHI NOBUAKI SAGAWA KEIICHIRO KOYANAGI KOJI |
| description | PROBLEM TO BE SOLVED: To provide a method for efficiently preparing a graft polymer excellent in cement-dispersing performance. SOLUTION: The method for preparing the graft polymer comprises a step of carrying out an esterification reaction between: a polymer A containing a specific structural unit (I) derived from an unsaturated carboxylic acid as a structural unit and; a specific alcohol B containing an oxyalkylene group, provided that the weight ratio of the polymer A to the alcohol B introduced into the reaction system is increased during the esterification reaction between the polymer A and the alcohol B. COPYRIGHT: (C)2010,JPO&INPIT |
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SOLUTION: The method for preparing the graft polymer comprises a step of carrying out an esterification reaction between: a polymer A containing a specific structural unit (I) derived from an unsaturated carboxylic acid as a structural unit and; a specific alcohol B containing an oxyalkylene group, provided that the weight ratio of the polymer A to the alcohol B introduced into the reaction system is increased during the esterification reaction between the polymer A and the alcohol B. 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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE |
| title | METHOD FOR PREPARING GRAFT POLYMER |
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