| 发明名称 |
Fluorescent brighter #71 used for the papermaking process |
| 摘要 |
Fluorescent whitening agent 71 (FB #71) 4,4′-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2′-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper. |
| 申请公布号 |
US9109331(B2) |
申请公布日期 |
2015.08.18 |
| 申请号 |
US201314073868 |
申请日期 |
2013.11.07 |
| 申请人 |
|
发明人 |
Li Meng Jun;Li Eric Ji Wei |
| 分类号 |
C07D413/10;C09K11/06;D06L3/12;D21H17/07;D21H21/30 |
主分类号 |
C07D413/10 |
| 代理机构 |
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代理人 |
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| 主权项 |
1. A fluorescent whitening application on the wet-end papermaking process, applying 0.01%-1.0% by weight of Fluorescent Whitening Agent of formula 4,4′-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2′-stilbene disodium salt (CAS 1609-02-1) on paper, with light re-emitting in the range of 440-450 nm, at an optimal operation temperature of 30-80° C., with a retention time of 5 minutes, and achieving up to 22 ISO Brightness points at 1% weight concentration, without yellowing caused by overdosing. |
| 地址 |
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