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AssigneeNone recorded
InventorsSung Soo Kim, In-Hwan Park, Byung Chul Shin, Soo Hong Lee
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The present invention relates to novel antibacterial agents wherein the lone pair electrons of nitrogen atoms of amine compounds with high boiling point or water-soluble polymer with basic nitrogen at the backbone or side chain are coordinated with silver ion, and antibacterial and deodorizing solution comprising them. Since the antibacterial agents of the present invention has silver (Ag) ion coordinated with the lone pair electrons of nitrogen atom, the problems of conventional silver (Ag) compounds, i.e., their ease discoloration in general waters such as tap water and industrial water, are solved, and the inherent antibacterial activity is maintained due to the stabilization of silver ion (Ag+). Also, since they are highly soluble in water, they can be prepared in liquid form to be used for antibacterial and deodorizing purposes.
An antibacterial and deodorizing solution comprising the a silver complex, wherein the lone pair electrons of nitrogen atom of amine compound with high boiling point or water-soluble polymer having basic nitrogen atom in the backbone or side chain are coordinated with silver ion, as effective component.
The antibacterial and deodorizing solution according to claim 5, wherein said silver complex is dissolved in water solvent or mixture solvent of water and alcohol.
The antibacterial and deodorizing solution according to claim 5, wherein said water-soluble polymer having basic nitrogen atom in the backbone or side chain is selected from the group consisting of polyvinylamine, polyarylamine, polyethyleneimine, polyhexamethylenebiguanidine and polyvinylpyridine.
The antibacterial and deodorizing solution according to claim 5, wherein said amine compound with high boiling point is selected from the group consisting of monoethanolamine, diethanolamine and triethanolamine.
The antibacterial and deodorizing solution according to claim 5, wherein said silver ion is derived from silver nitrate, silver acetate, silver sulfate, silver benzoate, silver salicylate, silver thiosalicylate or silver sulfadiazine.
Dependencies are inferred from the claim text.
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Disinfection, sterilisation or deodorisation of air: deodorant compositions
Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds: amines; Quaternary ammonium compounds
Amines; Quaternary ammonium compounds: containing oxygen or sulfur
Containing —N=CX2 groups, e.g. isothiourea: guanidine; Derivatives thereof
Term end not estimated
The present invention relates to novel antibacterial agents wherein the lone pair electrons of nitrogen atoms of amine compounds with high boiling point or water-soluble polymer with basic nitrogen at the backbone or side chain are coordinated with silver ion, and antibacterial and deodorizing solution comprising them.
Bacteria and molds produce low-molecular compounds emitting offensive odor by decomposing organic compounds like food with the secretion of enzymes. Also, bacteria and molds are sources of offensive odor in clothes, shoes, basement, pets and ditches. Accordingly, there have been continuous attempts to develop antibacterial and deodorizing agents which are effective for deodorization, agricultural deodorizing agent, skin-related antibacterial agent, green algae prevention and cockroach extermination by exterminating microbes like bacteria.
General organic antibacterial agents, among currently used antibacterial agents, exterminate microbes by infiltrating into the microbial body and transforming its DNA. So, there is a possibility to generate resistant microbes. On the other hand, since silver (Ag) compounds exterminate microbes by disturbing the electron-transfer system of the cell membrane outside the microbial body, there is no concern of resistant microbes. Also, there is another advantage that many silver (Ag) compounds usable for antibacterial agents have much lower toxicity than general organic antibacterial agents.
FIG. 1 is a photograph which shows the discoloration of the silver nitrate solution and silver-polyethyleneimine complex solution after exposing them for 2hr in UV.
FIG. 2 is a photograph which shows the behavior of cockroaches in the part where 2%-diluted solution of silver-polyethyleneimine complex was sprayed and in the non-treated part.
The present invention is characterized by a silver complex antibacterial agent wherein the lone pair electrons of nitrogen atoms of amine compounds with high boiling point or water-soluble polymer with basic nitrogen at the backbone or side chain are coordinated with silver ion.
Another characteristic of the present invention is an antibacterial and deodorizing solution comprising the said silver complex antibacterial agent.
Hereunder is given the more detailed description of the present invention.