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    • 42. 发明申请
    • COATED SODIUM PERCARBONATE GRANULES WITH IMPROVED STORAGE STABILITY
    • 具有改进的储存稳定性的包覆的碳酸钙颗粒
    • WO2004099071A1
    • 2004-11-18
    • PCT/EP2004/004355
    • 2004-04-24
    • DEGUSSA AGZIMMERMANN, KlausLATTICH, JürgenJAKOB, Harald
    • ZIMMERMANN, KlausLATTICH, JürgenJAKOB, Harald
    • C01B15/10
    • C01B15/106C11D3/3942C11D11/0088C11D17/0039
    • The invention concerns coated sodium percarbonate granules comprising a core produced by fluidised bed spray granulation, containing sodium percarbonate as its main component, an inner coating layer containing an organic, hydrate-forming salt as its main component, and an outer coating layer containing as its main component at least one surfactant containing in the molecule one or more sulfate or sulfonate groups in the form of an alkali metal, alkaline-earth metal or ammonium salt. The invention also concerns a process for the production of the granules, the use of the granules in bleaching and cleaning agents, and bleaching and cleaning agents containing the granules. The sodium percarbonate granules according to the invention display improved storage stability combined with high internal stability and a high active oxygen content.
    • 本发明涉及包含过碳酸钠颗粒的包衣过碳酸钠颗粒,其包含通过流化床喷雾造粒产生的核心,其包含过碳酸钠作为其主要成分,含有有机水合物形成盐作为其主要成分的内涂层,以及包含其作为其主要成分的外涂层 主要组分至少一种表面活性剂,其在分子中含有一种或多种碱金属,碱土金属或铵盐形式的硫酸盐或磺酸盐基团。 本发明还涉及生产颗粒的方法,漂白和清洁剂中颗粒的使用以及含有颗粒的漂白和清洁剂。 根据本发明的过碳酸钠颗粒显示改进的储存稳定性以及高的内部稳定性和高的活性氧含量。