| 发明名称 | Storage stable solutions of optical brighteners | ||
| 摘要 | The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4′-diaminostilbene-2,2′-disulphonic acid and of organic acids which do not need extra solubilizing additives. | ||
| 申请公布号 | US8894815(B2) | 申请公布日期 | 2014.11.25 |
| 申请号 | US200812746024 | 申请日期 | 2008.12.09 |
| 申请人 | Clariant Finance (BVI) Limited | 发明人 | Farrar John Martin;Jackson Andrew Clive;Mahon Margaret;Oberholzer Martin |
| 分类号 | D21H21/30;D21H17/07;D21H17/09;D21H23/04;D21H23/22;C09K11/00;C09K11/06;C07D251/00;C07D251/38;C07D251/40 | 主分类号 | D21H21/30 |
| 代理机构 | Miles & Stockbridge, P.C. | 代理人 | Miles & Stockbridge, P.C. |
| 主权项 | 1. An aqueous solution consisting essentially of 15 to 35% by weight of a compound of formula (1) wherein R is hydrogen or a methyl radical, M+ is Li+, Na+, or K+, n is less than or equal to 1.5, and of 0.1 to 2.0% by weight of an organic acid selected from the group consisting of citric acid, glycolic acid, acetic acid and formic acid. | ||
| 地址 | Tortola VG | ||