发明名称 |
Nonphosphated automatic dishwashing compositions with oxygen bleach systems and process for their preparation |
摘要 |
Disclosed is a process for making nonphosphated automatic dishwashing detergents which have granular form and comprise a conventional nonphosphorus builder system consisting essentially of an organic builder salt (such as citrate) and a dispersant (such as a polyacrylate); and an oxygen bleach system comprising a chelant (such as ethylenediamine disuccinate) and a bleach active (such as perborate or percarbonate) optionally with enzymes and/or dry-mixed hydrous silicates. The invention secures stable, free-flowing granules by a premix step in which the chelant and dispersant are brought together; a drying step using conventional equipment; and one or more admix steps in which the bleach active is mixed with the product of the drying step.
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申请公布号 |
US5292446(A) |
申请公布日期 |
1994.03.08 |
申请号 |
US19920908616 |
申请日期 |
1992.06.29 |
申请人 |
THE PROCTER & GAMBLE COMPANY |
发明人 |
PAINTER, JEFFREY D.;MARSHALL, JANET L.;ST. LAURENT, JAMES C. B. |
分类号 |
C11D;C11D3/39;C11D17/06;(IPC1-7):C11D3/37;C11D7/12;C11D7/18 |
主分类号 |
C11D |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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