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US07247174B2 Amphoteric fluorescent whitening agents 失效
两性荧光增白剂

Amphoteric fluorescent whitening agents
摘要:
The present invention provides novel bis-triazinylaminostilbene amphoteric fluorescent whitening agents, comprising both individual components and mixtures thereof, a process for their preparation, intermediates useful for their prepartion and use of the fluorescent whitening agents for the fluorescents whitening of paper.
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