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Novel rheology regulators of the crushed natural calcium carbonate type, possibly treated with a fatty acid or its salt, and their application in polymeric compositions
Novel rheology regulators of the crushed natural calcium carbonate type, possibly treated with a fatty acid or its salt, and their application in polymeric compositions
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机译:压碎的天然碳酸钙类型的新型流变调节剂,可能用脂肪酸或其盐处理过,并在聚合物组合物中的应用
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摘要
The invention relates to the selection of a natural calcium carbonate crushed to a high degree of fineness, possibly treated with one or more fatty acids or one or more of their salts or mixtures thereof, and its use as a rheology regulator for polymeric compositions. ;The specific surface area is 14 to 30 m2/g measured according to the BET method to ISO 4652, and the oil absorption is greater than 16 measured according to ISO 787-V (Rub-out method). The conditions of mixing of the constituents and manufacture are improved, as well as the properties of the final product.
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