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US 2005/0118239 A1Published application
Process for making antimicrobial articles by reacting chitosan with amino-reactive polymer surfaces
AssigneeE. I. Du Pont de Nemours and Company
InventorSubramaniam Sabesan
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Abstract
This invention relates to a process for making antimicrobial articles comprising contacting a chitosan solution with a polymer surface that contains amino-reactive functional groups.
Claims39
A polymeric material comprising
- a) a polymer that contains amino-reactive functional groups as polymerized, and
- b) a chitosan coating wherein the chitosan is reacted with said functional groups, wherein the surface of said polymeric material has a chitosan concentration of at least 1000 ppm by area.
A process for preparing antimicrobial articles, said process comprising the sequential steps of:
- a) providing an article whose surface comprises a polymer that contains amino-reactive functional groups as polymerized;
- b) contacting the article with a solution comprising chitosan;
- c) optionally, contacting the article of step b) with a solution containing a metal salt;
- and
- d) drying the article produced in step b) or c).
2 more elements
Dependencies are inferred from the claim text.