| 发明名称 |
A METHOD FOR OPTICALLY BRIGHTENING PAPER |
| 摘要 |
A simplified method for the optical brightening of paper either in the pulp mass, the size or metering press or by coating by the use of a formulation of an optical brightening agent together with a swellable layered silicate.
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| 申请公布号 |
CA2247569(C) |
申请公布日期 |
2010.11.23 |
| 申请号 |
CA19982247569 |
申请日期 |
1998.09.14 |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
ENGELHARDT, THOMAS;ROHRINGER, PETER |
| 分类号 |
D21H21/30;D21H17/68 |
主分类号 |
D21H21/30 |
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