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发明公开
CN109311682A 制造增稠剂的方法和由此制成的增稠剂在高粘度非水制剂中的用途 有权 转让

制造增稠剂的方法和由此制成的增稠剂在高粘度非水制剂中的用途
摘要：
本发明涉及包含或由季烃基-铵盐处理的矿物粘土混合物组成的至少一种混合矿物有机粘土流变添加剂在液体组合物中的用途，所述混合矿物有机粘土流变添加剂如下制备：形成水性纤维棒石粘土浆料(a)，形成水性绿土粘土浆料(b)，合并水性纤维棒石粘土浆料(a)与水性绿土粘土浆料(b)以形成合并的粘土浆料(c)，用一种或多种季烃基-铵盐处理所述合并的粘土浆料(c)，其中所述水性纤维棒石粘土浆料(a)如下形成：将选自海泡石和坡缕石的一种或多种纤维棒石粘土的成分分散在水性介质中以形成分散体，由此所用的纤维棒石粘土成分含有小于3.0重量％的Al2O3、小于1.0重量％的Fe2O3和小于3.5重量％的Al2O3和Fe2O3的组合；且所述水性绿土粘土浆料(b)如下形成：将一种或多种绿土粘土的成分分散在水性介质中以形成分散体，且特征在于所述合并的粘土浆料(c)中的纤维棒石粘土含量的重量超过绿土粘土含量的重量；且在合并这两种浆料之前和/或在合并这两种浆料之后对纤维棒石粘土浆料(a)和绿土粘土浆料(b)施以高速流体剪切，且其中用于形成水性纤维棒石粘土浆料(a)的所述一种或多种纤维棒石粘土表现出低于20毫摩尔亚甲蓝/100克在干状态下的所述一种或多种纤维棒石粘土的亚甲蓝交换容量，且由此用于形成水性纤维棒石粘土浆料(a)的纤维棒石粘土成分表现出小于0.800扫描单位的在X-射线粉末图样中的(110)反射的积分宽度B＝(净反射面积)/(净反射高度)，其中所述X-射线粉末图样使用Cu-Kα1-辐射在所述纤维棒石粘土成分的取向甘醇化样品上记录。本发明还涉及生产混合矿物有机粘土流变添加剂的方法和由此制成的添加剂作为液体组合物中的增稠剂的用途。
摘要（英）：

The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, in which the aqueous hormite clay slurry (a) being formed by dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and whereby the hormite clay fraction employed contains less than 3.0 % by weight of AI2O3, less than 1.0 % by weight of Fe2O3, and less than 3.5 % by weight of the combination of AI2O3 and Fe2O3; and the aqueous smectite clay slurry (b) being formed by dispersing a fraction of one or moresmectite clays in an aqueous medium to form a dispersion, and in that the weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry (c); and subjecting the hormite clay slurry (a) and the smectite clay slurry (b) to high speed fluid shear before combining both slurries and/or after having both slurries combined and wherein the one or more hormite clays employed in the formation of the aqueous hormite clay slurry (a) exhibit a methylene blue exchange capacity below 20 mmol methylene blue per 100 g of the one or more hormite clays in dry state and whereby the hormite clay fraction employed in the formation of the aqueous hormite clay slurry (a) shows an integral breadth B =(net area of reflection)/(net height of reflection) of the (110) reflection in an X-ray powder pattern recorded on an oriented glycolated sample of the hormite clay fraction using CuKPalpha- radiation of less than 0.800 scan units, in a liquid composition. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.

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