Coated particle and method for producing the same, anisotropic conductive adhesive composition using coated particle, and anisotropic conductive adhesive film
AssigneeHitachi Chemical Company, Ltd.
InventorsKenji Takai, Nobuaki Takane
Life of this patent
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Abstract
Disclosed is a coated particle (10) which is obtained by coating at least apart of the surface of a functional group-containing conductive particle (8), which has a conductive metal surface at least a part of which is provided with a functional group, with an insulating material which contains a polymer electrolyte (4) and an insulating particle (6) composed of an inorganic oxide having a hydroxy group on at least a part of the surface.
Claims16
A coated particle comprising a functional group-containing conductive particle at least partially surface-coated with an insulating material, wherein
- the conductive particle has a metal surface and at least a part of the metal surface has a functional group, and
- the insulating material comprises polymer electrolytes and insulating particles made of an inorganic oxide having a hydroxy group on at least a part of a surface thereof.
A method for producing a coated particle comprising a functional group-containing conductive particle at least partially surface-coated with an insulating material comprising polymer electrolytes and insulating particles comprising:
- a functional group forming step where a compound having at least one selected from the group consisting of a mercapto group, a sulfide group and a disulfide group is brought into contact with a metal surface of a conductive particle to form a functional group on at least a part of the metal surface to obtain the functional group-containing conductive particle;
- and
- a coating step where the polymer electrolytes and the insulating particles made of an inorganic oxide having a hydroxyl group on at least a part of a surface thereof are brought into contact with at least a part of the surface of the functional group-containing conductive particle.
Dependencies are inferred from the claim text.