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AssigneeNippon Paint Co., Ltd.
InventorsHitoshi Hori, Yasuhiro Hayashi, Hisaichi Muramoto
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In a method of producing an oil-in-water type emulsion containing an internally crosslinked fine resin particle, the fine resin particle is encapsulated in an emulsion particle having an average particle diameter of 0.02 to 0.3 μm. The method includes a step of undergoing phase transition from a water-in-oil type emulsion (Y) which includes a resin (A) having a cationic group or an anionic group, an acid or a base (B) neutralizing 20 to 150 mole percent of the cationic group or the anionic group in the resin (A), an internally crosslinked fine resin particle (C), having an average particle diameter of 0.01 to 0.2 μm, dispersed in an oil phase and an aqueous medium (D) to an oil-in-water type emulsion (Z) by adding the aqueous medium (D) further to the water-in-oil type emulsion (Y).
A method of producing an oil-in-water emulsion containing an internally crosslinked fine resin particle, wherein the fine resin particle is encapsulated in an emulsion particle having an average particle diameter of 0.02 to 0.3 μm, comprising of a step of undergoing phase transition from a water-in-oil emulsion (Y) comprising a resin (A) having a cationic group or an anionic group, an acid or a base (B) to neutralize 20 to 150 mole percent of the cationic group or the anionic group in the resin (A), an internally crosslinked fine resin particle (C) having an average particle diameter of 0.01 to 0.2 μm and being dispersed in an oil phase, and an aqueous medium (D) to an oil-in-water emulsion (Z) by adding further aqueous medium (D) to the water-in-oil emulsion (Y).
A method of producing an oil-in-water emulsion containing an internally crosslinked fine resin particle, wherein the fine resin particle is encapsulated in an emulsion particle having an average particle diameter of 0.02 to 0.3 μm, comprising a step of forming an oil-in-water emulsion (Z) by adding an aqueous medium (D) to an oily medium (X) comprising a resin (A) having a cationic group or an anionic group, an acid or a base (B) to neutralize 20 to 150 mole percent of the cationic group or the anionic group in the resin (A), and an internally crosslinked fine resin particle (C) having an average particle diameter of 0.01 to 0.2 μm and being dispersed in an oil phase.
A cation electrodeposition coating composition comprising an oil-in-water emulsion, said oil-in-water emulsion comprising:
Dependencies are inferred from the claim text.