MANUFACTURING METHOD OF POLYELECTROLYTE EMULSION

• Main Authors: MASUI KENTARO, SAITO SHIN, KURODA RYUMA, KURITA HIROYUKI
• Format: Patent
• Language: English
• Published: 14.02.2008
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; CONDUCTORS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide a manufacturing method of a polyelectrolyte emulsion exhibiting good dispersion stability without using an emulsifier. SOLUTION: [1] The manufacturing method of a polyelectrolyte emulsion comprises steps (1) and (2) below: (1) a preparation step for preparing a polyelectrolyte solution having a polyelectrolyte concentration of 0.1-10 wt.% by dissolving the polyelectrolyte in a solvent comprising a good solvent for the polyelectrolyte; and (2) a mixing step for mixing the polyelectrolyte solution obtained in (1) with a poor solvent for the polyelectrolyte in a ratio of 4-99 times by weight based on the polyelectrolyte solution. [2] The polyelectrolyte emulsion obtained by the manufacturing method of [1] contains polyelectrolyte particles having an average particle size of 100 nm to 200 μm and is substantially free from an emulsifier. COPYRIGHT: (C)2008,JPO&INPIT