Calcium carbonate filler for resin and resin composition including said filler

Provided is a calcium carbonate filler which, when combined with a resin and made into a resin composition, has excellent mouldability, dispersibility, gas marks (bubbles), and hue, and produces a film or the like that has excellent optical characteristics such as reflectance and light resistance. T...

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Bibliographische Detailangaben
Hauptverfasser:	KASAHARA, HIDEMITSU, SAKO, KOUHEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHYSICS POLISHES PREPARATION OF CARBON BLACK THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	Provided is a calcium carbonate filler which, when combined with a resin and made into a resin composition, has excellent mouldability, dispersibility, gas marks (bubbles), and hue, and produces a film or the like that has excellent optical characteristics such as reflectance and light resistance. The calcium carbonate filler for resin is characterised by satisfying expressions (a), (b), and (c). (a) 1.0 ≤ Sw ≤ 10.0 (m2/g) (b) 0.01 ≤ Tw ≤ 0.5 (wt%) (c) 80 ≤ Lw ≤ 90 Sw: BET specific surface area (m2/g) measured by a BET specific surface area measurement device (Macsorb manufactured by Mountech Co., Ltd.), Tw: weight loss value (wt%) at 200-300 DEG C measured by a thermogravimetric device (Thermo Plus EVO II manufactured by Rigaku Corporation), Lw: degree of whiteness (L value) measured by a spectroscopic colour difference meter (ZE-2000 manufactured by Nippon Denshoku Industries Co., Ltd.).