Cationic fluorescent whitening agents
US4384121A · kind A · utility
21Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1980 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/927
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cationic fluorescent whitening agents of the formula ##STR1## wherein B is a fluorescent whitening agent containing basic tertiary amino groups, m is the number of basic amino groups, and each of R.sub.1, R.sub.2 and R.sub.3 is alkyl of 1 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups, or is alkenyl of 2 to 4 carbon atoms which is unsubstituted or substituted by non-chromophoric groups. These compounds have good solubility in water and they make it possible to prepare concentrated solutions and can be used for whitening organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.