Singlet oxygen generators having enhanced heavy atom effect
US6232281A · kind A · utility
1Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jul 23, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to photochemical singlet oxygen generators useful as bleaching agents for laundry detergent compositions or in hard surface cleaning compositions and as anti-microbials. The photochemical singlet oxygen generators comprise a heavy atom unit-containing axial unit wherein the heavy atoms overlap with the .pi. electron cloud of the photosensitizer unit and enhance the quantum efficiency of the transition of an electron from exited singlet state to triplet state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.