Compositions and methods for reducing odor

An odor-controlled article comprising:

• an effective amount of an odor reducing composition, wherein said odor reducing composition comprises (a) at least one acid having a pKa greater than about 2.9 and less than about 6, water solubility less than about 45 g/100 g H2O, and an oral rat LD50 greater than about 2200 mg/kg, (b) at least one synthetic zeolite having at least about 90 percent of its tetrahedral oxide units as SiO2 tetrahedra, a capacity for adsorbed water of not greater than 10 weight percent when measured at 25° C. and at a water vapor pressure of 4.6 torr, and pore apertures at least 5.5 Å in diameter, from which the original water of hydration has been substantially removed, and (c) at least one substance selected from the group consisting of a metal, metal oxide, a metal salt, and any combination thereof;
• and
• an article that, in the absence of said odor reducing composition, emits odor during use, in contact with said odor reducing composition.

An odor-controlled article comprising:

• (a) an effective amount of an odor reducing composition for controlling odors, wherein said odor reducing composition comprises (i) at least one acid selected from aspartic, fumaric, sorbic, tartaric or adipic acid, (ii) at least one synthetic zeolite having at least about 90 percent SiO2 tetrahedra oxide units, a capacity for adsorbed water of not greater than about 10 weight percent when measured at 25° C. and at a water vapor pressure at 4.6 torr, and pore apertures at least about 5.5 Å in diameter, wherein the original water of hydration has been substantially removed, and (iii) zinc oxide or zinc sulfate;
• and
• (b) an article that, in the absence of said odor reducing composition, emits odor during use, in contact with said odor reducing composition.

A method for reducing odor that comprising contacting an effective amount of an odor reducing composition that comprises (a) at least one acid having a pKa, greater than about 2.9 and less than about 6, water solubility less than about 45g/100 g H2O, and an oral rat LD50 greater than about 2200 mg/kg, (b) at least one synthetic zeolite having at least about 90 percent of its tetrahedral oxide units as SiO2 tetrahedra, a capacity for adsorbed water of not greater than 10 weight percent when measured at 25° C. at a water vapor pressure at 4.6 torr, and pore apertures at least 5.5 Å in diameter, from which the original water of hydration has been substantially removed, and (c) at least one substance selected from the group consisting of a metal, metal oxide, salt of a metal or metal oxide, and any combination thereof, with an article that, in the absence of said odor reducing composition, emits an odor during use, for a sufficient time to effectively remove said odor;

• and removing said emitted odor from said odor emitting article.

A method for removing odor from an odor emitting environment comprising:

• contacting an effective amount of an odor reducing composition, wherein said odor reducing composition comprises at least one acid having a pKa greater than about 2.9 and less than about 6, water solubility less than about 45 g/100 g H2O, and an oral rat HD50 greater than about 2200 mg/kg, at least one synthetic zeolite having at least about 90 percent SiO2 tetrahedra oxide units, a capacity for adsorbed water of not greater than 10 weight percent measured at 25° C. and water vapor pressure of 4.6 torr, and pore apertures at least 5.5 in diameter, from which the original water of hydration has been substantially removed, and at least one substance selected from the group consisting of a metal, metal oxide, a metal salt and any combination thereof, with said odor emitting environment;
• and allowing a sufficient time to pass for said composition to remove the odor.