Antimicrobial cationic polyamines
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United States of America Patent
Stats
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Jul 26, 2016
Grant Date -
Dec 3, 2015
app pub date -
May 28, 2014
filing date -
May 28, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Antimicrobial, non-hemolytic cationic polyamines were prepared by treating partially N-acylated polyethylenimines and/or partially oxidized polyethylenimines with a protic acid. The cationic polyamines can have a linear or branched polyethylenimine backbone structure. Preferably, the cationic polyamines comprise pendant urea groups, which can be introduced via a cyclic carbonate comprising a pendant urea group. The cationic polyamines can be active against a tuberculosis mycobacterium at low concentration. The cationic polyamines are also effective against Gram-negative Escherichia coli and Pseudomonas aeruginosa, Gram-positive Staphylococcus aureus, and fungus Candida albicans in solution and in the form of a film.
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International Classification(s)
- 2014 Application Filing Year
- A61K Class
- 14144 Applications Filed
- 11600 Patents Issued To-Date
- 82.02 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 11 Citation Count
- A61K Class
- 91.06 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 26, 2028 |
