发明公开
EP0340847A2 Process for preparing bodies containing a peroxyacid compound and compositions comprising said bodies
失效
一种用于生产含有过氧酸化合物和含有此组合物的身体机构的过程。
- 专利标题： Process for preparing bodies containing a peroxyacid compound and compositions comprising said bodies
- 专利标题（中）： 一种用于生产含有过氧酸化合物和含有此组合物的身体机构的过程。
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申请号： EP89201076.0申请日： 1989-04-26
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公开(公告)号： EP0340847A2公开(公告)日： 1989-11-08
- 发明人: Finch, Timothy David , Iley, William John
- 申请人： UNILEVER N.V. , UNILEVER PLC
- 申请人地址： Weena 455 3013 AL Rotterdam NL
- 专利权人： UNILEVER N.V.,UNILEVER PLC
- 当前专利权人： UNILEVER N.V.,UNILEVER PLC
- 当前专利权人地址： Weena 455 3013 AL Rotterdam NL
- 代理机构： Bryant, Tracey
- 优先权： GB8810630 19880505
- 主分类号： C11D3/06
- IPC分类号： C11D3/06 ; C11D3/37 ; C11D3/39 ; C11D11/00 ; C11D3/36
摘要：
An improved process for preparing dry particulate bodies containing a solid peroxyacid compound is disclosed, comprising the steps of
(A) forming a water-wet mixture of a solid peroxyacid compound and a hydratable material having a temperature of hydration of up to 40° C, at a temperature which is higher than the temperature of hydration of the hydratable material;
(B) forming the mixture of (A) into particles of the desired shape and size before, during or after cooling the mass to below the temperature of hydration of the hydratable material; and
(C) drying the particles obtained from step (B), the improvement being that in step (A) a film-forming material is incorporated in, and intimately mixed with, the water-wet mixture, forming a mix having a pH of below 7.
The peroxyacid-containing bodies obtainable therefrom are extremely suitable for use as a bleach additive and for the incorporation in bleaching and/or detergent powder compositions.
(A) forming a water-wet mixture of a solid peroxyacid compound and a hydratable material having a temperature of hydration of up to 40° C, at a temperature which is higher than the temperature of hydration of the hydratable material;
(B) forming the mixture of (A) into particles of the desired shape and size before, during or after cooling the mass to below the temperature of hydration of the hydratable material; and
(C) drying the particles obtained from step (B), the improvement being that in step (A) a film-forming material is incorporated in, and intimately mixed with, the water-wet mixture, forming a mix having a pH of below 7.
The peroxyacid-containing bodies obtainable therefrom are extremely suitable for use as a bleach additive and for the incorporation in bleaching and/or detergent powder compositions.
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