COMPOSITE CURED SILICONE POWDER AND METHOD FOR PRODUCTION THEREOF

A composite cured silicone powder comprising:(A) a cured silicone powder having an average particle size of 0.1 to 500µm, (B) an inorganic fine powder coated on the surface of said cured silicone powder and (C) a monohydric or polyhydric alcohol with a boiling point of at least 150 °C coating on the...

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Bibliographische Detailangaben
Hauptverfasser:	KOBAYASHI, KAZUO, TACHIBANA, RYUJI, TAKIMOTO, TADASHI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A composite cured silicone powder comprising:(A) a cured silicone powder having an average particle size of 0.1 to 500µm, (B) an inorganic fine powder coated on the surface of said cured silicone powder and (C) a monohydric or polyhydric alcohol with a boiling point of at least 150 °C coating on the surface of component (A) and/or component (B). The composite cured silicone powder that has an excellent flowability, hydrophilicity, and dispersibility. And, this invention also relates to a production method of the composite, which is characterized by mixing components (A) to (C) under the condition of mechanical shearing. L'invention concerne une poudre composite de silicium durci comprenant : (A) une poudre de silicium durci ayant une grosseur de particule moyenne comprise entre 0,1 et 500 µm, (B) une poudre fine inorganique appliquée sur la surface de la poudre de silicium durci et (C) un alcool monohydrique ou polyhydrique ayant un point d'ébullition d'au moins 150 °C recouvrant la surface du composant (A) et/ou du composant (B). La poudre composite de silicium durci présente une excellente aptitude à l'écoulement, un excellent caractère hydrophile et une excellente dispersibilité. Cette invention concerne également un procédé de production du composite qui est caractérisé par le mélange des composants (A) et (C) dans des conditions de cisaillement mécanique.