TWI751195B

TWI751195B

Provided is a calcium carbonate filler for resins that has uniform particles, high dispersibility and thermal stability, and, in particular, excellent smoothness, peelability, resistance to detachment, and the like and is useful as an antiblocking material. The calcium carbonate filler for resins in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO, KAZUYA, KASAHARA, HIDEMITSU
Format: Patent
Sprache:chi
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
GENERAL PROCESSES OF COMPOUNDING
INORGANIC CHEMISTRY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
WORKING-UP
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Beschreibung
Zusammenfassung:Provided is a calcium carbonate filler for resins that has uniform particles, high dispersibility and thermal stability, and, in particular, excellent smoothness, peelability, resistance to detachment, and the like and is useful as an antiblocking material. The calcium carbonate filler for resins includes calcium carbonate particles and satisfies formulae (a) to (e) below: (a) 1.0≤Sw≤12.0 (m2/g); (b) 0.1≤Dx≤5.0 (μm); (c) 0.1≤Dy≤5.0 (μm); (d) 0.8≤Dy/Dx≤3.5; and (e) 0.1≤Tw≤0.8 (% by weight), where Sw is a BET specific surface area (m2/g); Dx is a primary particle diameter (μm) expressed as a calculation formula: Dx=6/(2.7·Sw); Dy is a 50% diameter (μm); and Tw is a thermal weight loss (% by weight) between 100 and 300° C.