Resin particles, conductive microparticles, and anisotropic conductive material using same
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United States of America Patent
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Mar 20, 2018
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app pub date -
Mar 18, 2015
filing date -
Mar 18, 2014
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Abstract
The object of the present invention is to provide a resin particle having a protrusion that is more resistant to the detachment and having a uniform protrusion size and protrusion distribution density. The resin particle of the present invention comprises: a spherical part and a peripheral part having a plurality of convex part formed on the surface of the spherical part, wherein the spherical part and the peripheral part comprise a vinyl polymer and/or a polysiloxane component, the spherical part and the peripheral part are different in the composition, the melting point of the peripheral part is not less than 200° C., and the curvature center of the boundary between the peripheral part and the spherical part determined by a transmission electron microscope observation of the cross-section of the resin particle exists in the spherical part.
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