Abstract: Compositions, methods and apparatuses for reducing or eliminating malodors from indoor air are described. The method utilizes vapor phase hydrogen peroxide (VPHP) generated from either evaporation from an aqueous-based liquid composition or sublimation from a solid hydrogen peroxide-containing compound. VPHP engages a media coated with at least one transitional metal element or compound, which acts as an oxidation catalyst, in the presence of air that contains malodorous compounds to provide increased efficacy of malodor molecule oxidation. The apparatus can employ a disposable porous non-woven filter pad coated with one or more transition metal compounds, and a solid source of VPHP. Malodor-containing air engages the pad in the presence of the VPHP to effectively oxidize the malodorants. The apparatus can also include a mechanism to provide color change(s) in the presence of VPHP to indicate whether the device contains VPHP or not.

Abstract: Compositions, methods and apparatuses for reducing or eliminating malodors from indoor air are described. A method is provided for the reduction or elimination of malodors from indoor air using vapor phase hydrogen peroxide generated from either evaporation from a pH neutral to mildly acidic aqueous-based liquid composition or sublimation from a solid composition containing at least one pH neutral to mildly acidic solid hydrogen peroxide-containing compound. The vapor phase hydrogen peroxide (VPHP) engages a media coated with at least one transitional metal element or compound in the presence of air that contains malodorous compounds. The combination of the vapor phase hydrogen peroxide and the transitional metal compound, which acts as an oxidation catalyst, provides increased efficacy of malodor molecule oxidation.

Abstract: A substrate for delivering a fragrance to the surroundings is disclosed, wherein the substrate comprises: (i) at least one copolymer of an olefin and one or more ethylene derivatives selected from a group consisting of vinyl esters of saturated carboxylic acids, propenyl esters of saturated carboxylic acids, olefmically unsaturated organic acids or esters, and mixtures thereof, and (ii) a fragrance in an amount sufficient to be released to the surroundings at a sustained, controlled rate. Preferably, the substrate is in a form of a transparent sheet so that the substrate can be conveniently and discreetly attached to a surface and deliver a fragrance impregnated therein to the surroundings.

Abstract: An improved process for shale oil dearsenation comprises coking a retorted hale oil stream following by contacting the liquid coker product with water. Water washing is preferably carried out under ambient conditions to achieve a reduction to less than 3 ppm w soluble arsenic.