METHOD FOR PRODUCING EPOXY RESIN, AND HIGH-MOLECULAR-WEIGHT EPOXY RESIN
PROBLEM TO BE SOLVED: To provide a method for producing an epoxy resin having flexibility and heat resistance and being very useful in a variety of applications such as molding materials, casting materials, laminating materials, coating materials, adhesives, or resists. SOLUTION: The method for prod...
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| creator | NAKANISHI MASATAKA MOGI SHIGERU |
| description | PROBLEM TO BE SOLVED: To provide a method for producing an epoxy resin having flexibility and heat resistance and being very useful in a variety of applications such as molding materials, casting materials, laminating materials, coating materials, adhesives, or resists. SOLUTION: The method for producing a powdery epoxy resin comprises step (1) of reacting a compound having a phenolic hydroxy group with epichlorohydrin in the presence of an alkali metal hydroxide to prepare an epoxy resin, step (2) of adding a good solvent for the epoxy resin to the obtained residue (epoxy resin) to dissolve the epoxy resin, and step (3) of mixing the obtained solution with a poor solvent for the epoxy resin to precipitate the powdery epoxy resin. COPYRIGHT: (C)2006,JPO&NCIPI |
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SOLUTION: The method for producing a powdery epoxy resin comprises step (1) of reacting a compound having a phenolic hydroxy group with epichlorohydrin in the presence of an alkali metal hydroxide to prepare an epoxy resin, step (2) of adding a good solvent for the epoxy resin to the obtained residue (epoxy resin) to dissolve the epoxy resin, and step (3) of mixing the obtained solution with a poor solvent for the epoxy resin to precipitate the powdery epoxy resin. 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| subjects | BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PRINTED CIRCUITS SEMICONDUCTOR DEVICES THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | METHOD FOR PRODUCING EPOXY RESIN, AND HIGH-MOLECULAR-WEIGHT EPOXY RESIN |
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