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    • 8. 发明授权
    • Process for making granular detergent compositions comprising nonionic
surfactant
    • 制备包含非离子表面活性剂的颗粒洗涤剂组合物的方法
    • US5698510A
    • 1997-12-16
    • US612946
    • 1996-03-12
    • Carole Patricia WilkinsonPaul Amaat Raymond FranceJohn Christian Schmitt
    • Carole Patricia WilkinsonPaul Amaat Raymond FranceJohn Christian Schmitt
    • C11D11/00C11D17/06
    • C11D1/835C11D1/86C11D11/0082C11D17/065C11D1/525C11D1/72
    • A process for making granular detergent compositions or components comprising from about 35% to about 85% by weight of a surfactant system comprising a mixture of polyhydroxy fatty acid amide and ethoxylated nonionic surfactant. The surfactant system is in the solid phase at temperatures of 25.degree. C. and below, and has a softening point from above 25.degree. C. to 100.degree. C. Additionally, the surfactant system has a viscosity profile whereby its viscosity is at least about 20,000 cps at a temperature of 10.degree. C. above the softening point, and less than about 10,000 cps at a temperature of 30.degree. C. above the softening point, all viscosities being measured at a shear rate of 25 s.sup.-1. The process comprises the steps of: a) pumping the surfactant system in its low viscosity state; b) cooling the surfactant system to a temperature where its viscosity is increased to at least about 20,000 cps; c) granulating the surfactant system in the presence of a finely divided powder to obtain agglomerates; and d) cooling the agglomerates.
    • PCT No.PCT / US94 / 10062 Sec。 371日期:1996年3月12日 102(e)1996年3月12日PCT PCT 1994年9月1日PCT公布。 公开号WO95 / 07968 日期1995年3月23日一种制备颗粒洗涤剂组合物或组分的方法,其包含约35%至约85%重量的包含多羟基脂肪酸酰胺和乙氧基化非离子表面活性剂的混合物的表面活性剂体系。 表面活性剂体系在25℃及以下的温度下为固相,软化点高于25℃至100℃。此外,表面活性剂体系具有粘度分布,其粘度为至少约 在软化点以上10℃的温度下,20,000cps,在软化点以上30℃的温度下小于约10,000cps,所有粘度均以25s -1的剪切速率测量。 该方法包括以下步骤:a)将表面活性剂体系泵入其低粘度状态; b)将表面活性剂体系冷却至其粘度增加至至少约20,000cps的温度; c)在细粉末存在下造粒表面活性剂体系以获得附聚物; 和d)冷却附聚物。