Sterilant composition
AssigneeCetylite Industries, Inc.
InventorsStanley L. Wachman, Sidney Karlan
Life of this patent
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Abstract
A biocidal, aqueous composition for killing bacteria, spores, fungi, and viruses on nonabsorbent surfaces comprises at least one quaternary ammonium compound, at least one aliphatic dialdehyde having from two to six carbon atoms, and at least one aliphatic hydroxyl compound having form one to eight carbon atoms. This sterilant is stable for weeks, is especially useful between pH 4 to 9, and may additionally comprise a chelating agent.
Claims13
A biocidal, aqueous, composition for killing bacteria, spores, fungi, and viruses on nonabsorbent surface comprising:
- a) two quaternary ammonium compounds, each in the amount of from about 0.05 to 3 percent by weight, one of said two quaternary ammonium compounds is a heterocyclic quaternary ammonium compound, and the other of said quaternary ammonium compounds is an aliphatic quaternary ammonium compound having an aromatic and an alkyl moiety or having a long chain aliphatic and a lower alkyl moiety;
- b) one heterocyclic dialdehyde containing up to 6 carbon atoms in the amount of from about 0.5 to about 7 percent by weight;
- and
- c) at least one aliphatic hydroxyl compound having from 1 to 8 carbon atoms in the amount from 0.1 to about 3 percent by weight;
- all weight percents being in the final use dilution.
A method for sterilizing a nonabsorbent surface comprising the steps of contacting said surface with an effective sterilizing amount of an aqueous composition comprising:
- a) two quaternary ammonium compounds, each in the amount of from about 0.05 to 3 percent by weight, one of said two quaternary ammonium compounds is a heterocyclic quaternary ammonium compound, and the other of said quaternary ammonium compounds is an aliphatic quaternary ammonium compound having an aromatic and an alkyl moiety or having a long chain aliphatic and a lower alkyl moiety;
- b) one heterocyclic dialdehyde containing up to 6 carbon atoms in the amount of from about 0.5 to about 7 percent by weight;
- and
- c) at least one aliphatic hydroxyl compound having from one to eight carbon atoms in the amount from about 0.1 to about 3 percent by weight;
- all weight percents being in the final use dilution;
- and killing on said surface bacteria, spores, fungi, and viruses.
Dependencies are inferred from the claim text.