Antibacterial titania and process for producing the same

Details Antibacterial titania and process for producing the same Antibacterial titania and process for producing the same

1997-04-15

1999-08-10

Pak, John

Drug, bio-affecting and body treating compositions

Inorganic active ingredient containing

Heavy metal or compound thereof

424600, 424617, 424641, 424642, 424643, 424678, 424681, 424685, 424666, 424401, 424404, 424409, 424421, A01N 5916, A01N 2508, A01N 2526, C01G 23047

Patent

active

059356081

ABSTRACT:
An antibacterial titania comprising a titania to which ions of an antibacterial metal are adhered, wherein the antibacterial metal is silver; and the antibacterial titania further contains chlorine at a Cl/Ag molar ratio in a range of from 2.8 to 7.2. A process for producing an antibacterial titania which comprises the steps of: (1) incorporating a salt of an antibacterial metal into a slurry of metatitanic acid to adhere ions of the antibacterial metal to titania in the metatitanic acid slurry; and (2) adding a source of chlorine ions to the slurry, wherein the antibacterial metal is silver.

REFERENCES:
patent: 4798813 (1989-01-01), Kato et al.
patent: 5413788 (1995-05-01), Edwards et al.
patent: 5503840 (1996-04-01), Jacobson et al.
Corbett, Richard J. "A novel inorganic preservative system for personal care products," Cosmetic News, vol. 19 (106), 1996, pp. 20-25.
Corbett, R.J. "An Inorganic biocide using a novel presentation of silver," International Journal of Cosmetic Science, vol. 18(4), 1996, pp. 151-165.

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