发明名称 |
A METHOD OF BUILDING OF HARD WATER AND A BUILDER SYSTEM FOR A DETERGENT COMPOSITION |
摘要 |
<p>The invention provides a method for softening of water comprising dissolving/dispersing a water soluble alkali metal carbonate, a seed for precipitating calcium carbonate, a sequestrant selected from amino polycarboxylic acid, amino polyphosphonic acid, nitrilo triacetic acid or salts thereof; wherein not more than 20 wt% of the sequestrant dissolves in the water in the first 30 seconds after the dissolution/dispersion of said water soluble alkali metal carbonate and said seed for precipitating calcium carbonate. The invention also provides an effective builder composition for use in a detergent composition comprising (i) a water soluble alkali metal carbonate; (ii) a seed for precipitating calcium carbonate; and (iii) a sequestrant selected from amino polycarboxylic acid, amino polyphosphonic acid, nitrilo triacetic acid or salts thereof wherein said sequestrant is present in the form of granules having a particle size of 0.5 to 2 mm so as to achieve delayed release of the sequestrant.</p> |
申请公布号 |
WO2009077327(A1) |
申请公布日期 |
2009.06.25 |
申请号 |
WO2008EP66626 |
申请日期 |
2008.12.02 |
申请人 |
UNILEVER NV;UNILEVER PLC;HINDUSTAN UNILEVER LIMITED;BANDYOPADHYAY, SAYAN;DAS, SUBIR, KUMAR;SARKAR, ARPITA |
发明人 |
BANDYOPADHYAY, SAYAN;DAS, SUBIR, KUMAR;SARKAR, ARPITA |
分类号 |
C02F5/14;C02F1/52;C02F1/68;C02F5/10;C02F5/12;C11D3/10;C11D3/12;C11D3/33;C11D3/36;C11D7/12;C11D7/32;C11D7/36 |
主分类号 |
C02F5/14 |
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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