Quaternary ammonium group-containing polymers having antimicrobial activity
US4482680A · kind A · utility
23Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1983 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Apr 13, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polymeric quaternary ammonium compounds having recurring vinylbenzyl ammonium units are disclosed. The quaternary ammonium units preferably have 2 alkyl substituents of 1 to 4 carbons and 1 alkyl substituent of 4 to 12 carbons. These materials have antimicrobial properties and are particularly useful for preserving ophthalmic solutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.