Quaternary ammonium salt and process for the preparation thereof
US6664224B2 · kind B2 · utility
1Cited by
0References
11Claims
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Assignee
Inventors
Key dates
| Filing date | May 15, 2001 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P27/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The novel quaternary ammonium salt according to the invention has two quaternary ammonium groups connected to a benzene ring, wherein two C4-12 alkyl groups and one C1-2 alkyl group are connected per one nitrogen atom constituting the quaternary ammonium. The compound is used as an antimicrobial agent, exhibits a high safety to human as compared with known antimicrobial agents, exerts an excellent sterilizing effect itself and exhibits a wide sterilizing spectrum. In particular, the compound is used as a presevative for eye drop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.