Bis-(triazinylamino)-stilbene derivatives
US9376405B2 · kind B2 · utility
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1References
20Claims
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Key dates
| Filing date | Apr 17, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Dec 23, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The instant invention relates to novel water soluble bis-(triazinylamino)-stilbene optical brightening agents, a process for their preparation and their use for whitening natural and synthetic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.