OXIDE COMPOSITE PARTICLES, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION

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United States of America Patent

APP PUB NO 20240317975A1
SERIAL NO

18578955

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Abstract

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Provided are oxide composite particles to be mixed with a resin to obtain a resin composition having low viscosity, low dielectric constant, and low dielectric loss tangent. The oxide composite particles containing silica and an oxide of aluminum (a single oxide or a composite oxide, or both), in which the oxide composite particles contain 50% by mass or more of an α-cristobalite crystal phase, less than 5% by mass of an α-alumina crystal phase, and 10% by mass or less of a mullite crystal phase, and an elemental ratio of aluminum to silicon (aluminum/silicon) as determined by X-ray photoelectron spectroscopy is 0.01 to 5.0.

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Patent Owner(s)

Patent OwnerAddress
DENKA COMPANY LIMITED1-1 NIHONBASHI-MUROMACHI 2-CHOME CHUO-KU TOKYO 1038338 ?1038338

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
FUKAZAWA, Motoharu Tokyo, JP 25 32
OKABE, Takuto Tokyo, JP 17 1
TSUNEYOSHI, Toshihiko Tokyo, JP 3 0

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