| abstract |
It is required to devise a way to reduce the amount of zinc pyrithione added to hair care products as an anti-dandruff agent so as to decrease stimulation to the ocular mucosa, and to reduce an influence on the environment of domestic wastewater, and a way to accelerate the decomposition of zinc pyrithione in sewage treatment facilities, rivers, lakes and ponds. n Furthermore, zinc pyrithione used as an antifouling agent for ship-bottom paints is eluted from a coating film at a high rate and thus results in poor long-term antifouling effect, so that it is also required to devise a way to decrease the solubility thereof in seawater. n These problems could be solved at once by an antibiotic composition obtained by adsorbing zinc pyrithione or a zinc pyrithione/zinc oxide composite compound to hydrous titanium oxide. |