ORGANIC-INORGANIC COMPOSITE MATERIAL

ORGANIC-INORGANIC COMPOSITE MATERIAL

PROBLEM TO BE SOLVED: To provide an organic-inorganic composite material having small thermal expansion which prevents brittle fracture.SOLUTION: The organic-inorganic composite material comprises: at least (A) a thermoplastic acrylic resin; (B) a silica fine particle having a primary particle diame...

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Bibliographische Detailangaben
1. Verfasser: KUMAGAI TAKEAKI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an organic-inorganic composite material having small thermal expansion which prevents brittle fracture.SOLUTION: The organic-inorganic composite material comprises: at least (A) a thermoplastic acrylic resin; (B) a silica fine particle having a primary particle diameter of ≥1 nm and ≤20 nm whose surface is hydrophilicity; and (C) a thermoplastic elastomer, and the volume ratio of the (B) silica fine particle is ≥24 vol.% and ≤63 vol.% to the entire (A) thermoplastic acrylic resin, (B) silica fine particle and (C) thermoplastic elastomer. The volume ratio of the (C) thermoplastic elastomer contained in the organic-inorganic composite material is equal to and less than the volume ratio of the (A) thermoplastic acrylic resin.