ORGANIC SILICONE MICROPARTICLE, METHOD FOR MANUFACTURING ORGANIC SILICONE MICROPARTICLES, AND COSMETIC, RESIN COMPOSITION, AND DEVELOPING TONER CONTAINING ORGANIC SILICONE MICROPARTICLES

World Intellectual Property Organization Patent

APP PUB NO WO-2011074066-A1
SERIAL NO

PCTJP2009070884

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Abstract

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Provided is an organic silicone microparticle that can sufficiently fulfill the high requirements of actual usage situations in recent years, such as further improvements in thermal discoloration resistance and optical properties, such as total light transmittance and haze, for resin compositions; further improvements in usability (spreadability upon application) and feel (stickiness, roughness, and lastingness) for cosmetics; and increased fluidity retention for developing toner. Also provided is a method for manufacturing the provided organic silicone microparticle and a cosmetic, resin composition, and developing toner containing said organic silicone microparticle. The surface of the provided organic silicone microparticle, which overall is sphere-shaped, has a plurality of irregularly-shaped faces (21) and a net-like convex area (31) that surrounds the irregularly-shaped faces (21). The organic silicone microparticle fulfills the following conditions: a) the mean diameter (L1) thereof is between 0.1 and 20 μm; and (b) the number of irregular faces (21) per organic silicon microparticle is at least 20.

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Patent Owner(s)

Patent OwnerAddress
TAKEMOTO OIL & FAT CO LTDJP2-5 MINATO-MACHI GAMAGORI-SHI AICHI 4438611 ?4438611

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Inventor(s)

Inventor Name Address
SAITO CHIAKI GAMAGORI-SHI AICHI 443-8611
YASUI MAMORU GAMAGORI-SHI AICHI 443-8611
ISHIKAWA FUMIYOSHI 〒4438611 愛知県蒲郡市港町２番５号 竹本油脂株式会社内 AICHI ?4438611

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