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    • 4. 发明授权
    • Process for making granular detergent component
    • 制备颗粒洗涤剂组分的方法
    • US5962397A
    • 1999-10-05
    • US983543
    • 1998-07-31
    • Mark William RidyardDavid William York
    • Mark William RidyardDavid William York
    • C11D1/62C11D3/02C11D3/10C11D3/12C11D3/20C11D11/00C11D11/02
    • C11D3/046C11D1/62C11D11/0082C11D11/02C11D3/10C11D3/126C11D3/128C11D3/2082C11D3/2086
    • Disclosed are granular detergent components and processes for making these components. The processes comprise the steps of: i) forming the granular detergent component by drying an aqueous solution, the aqueous solution comprising at least 50% of a cationic surfactant, to form a powder; and then ii) densifying the powder in the presence of a detergent powder selected from the group consisting of aluminosilicate, carbonate, bicarbonate, silicate, sulphate, citrate, clay and mixtures thereof and an acid selected from the group consisting of citric, sulphuric, hydrochloric, polycarboxylic acids and mixtures thereof. This granular detergent component consists essentially of the cationic surfactant, the acid and the particulate builder and the granular detergent component has a reserve acidity of at least 1.0 g HCl/100 g. Also disclosed is a granular detergent component having a bulk density of at least about 500 g/l comprising at least 42% by weight of cationic surfactant, from 1% to 60% by weight of an acid, and optionally, up to 79% by weight of a detergent powder selected from the group consisting of citric, sulphuric, hydrochloric, polycarboxylic acids and mixtures thereof wherein the granular detergent component has a reserve acidity of at least 1.0 g HCl/100 g.
    • PCT No.PCT / US96 / 11274 Sec。 371日期:1998年7月31日 102(e)1998年7月31日PCT PCT 1996年7月3日PCT公布。 出版物WO97 / 03154 日期1997年1月30日公开是用于制备这些组分的颗粒洗涤剂组分和方法。 该方法包括以下步骤:i)通过干燥水溶液形成颗粒状洗涤剂组分,所述水溶液包含至少50%的阳离子表面活性剂,以形成粉末; 然后ii)在选自硅铝酸盐,碳酸盐,碳酸氢盐,硅酸盐,硫酸盐,柠檬酸盐,粘土及其混合物中的洗涤剂粉末和选自柠檬酸,硫酸,盐酸的酸的存在下使粉末致密化 ,多元羧酸及其混合物。 该颗粒洗涤剂组分主要由阳离子表面活性剂,酸和颗粒助洗剂组成,颗粒洗涤剂组分具有至少1.0g HCl / 100g的储备酸度。 还公开了具有至少约500g / l的堆积密度的颗粒状洗涤剂组分,其包含至少42重量%的阳离子表面活性剂,1重量%至60重量%的酸,以及任选地至多79重量% 选自柠檬酸,硫酸,盐酸,多元羧酸及其混合物的洗涤剂粉末的重量,其中颗粒状洗涤剂组分具有至少1.0g HCl / 100g的储备酸度。