US 11,938,242 B2
Apparatus and method for reducing malodor on surfaces
Rahul Vyas, Singapore (SG); Garima Chauhan, Singapore (SG); Madhuri Jayant Khanolkar, Singapore (SG); and Gaurav Saini, Singapore (SG)
Assigned to The Procter & Gamble Plaza, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Oct. 30, 2018, as Appl. No. 16/174,328.
Claims priority of provisional application 62/581,034, filed on Nov. 3, 2017.
Prior Publication US 2019/0134245 A1, May 9, 2019
Int. Cl. A61L 2/20 (2006.01); A01N 35/02 (2006.01); A01N 35/04 (2006.01); A01N 35/06 (2006.01); A01N 43/08 (2006.01); A61L 2/28 (2006.01); A61L 9/01 (2006.01); A61L 9/03 (2006.01); A61L 9/12 (2006.01)
CPC A61L 2/20 (2013.01) [A01N 35/02 (2013.01); A01N 35/04 (2013.01); A01N 35/06 (2013.01); A01N 43/08 (2013.01); A61L 2/28 (2013.01); A61L 9/01 (2013.01); A61L 9/037 (2013.01); A61L 9/122 (2013.01); A61L 9/127 (2013.01); A61L 2202/11 (2013.01); A61L 2209/131 (2013.01); A61L 2209/133 (2013.01); A61L 2209/15 (2013.01); A61L 2209/21 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of reducing malodor on surfaces, the method comprising the steps of:
a) providing an apparatus in an environment including a surface comprising a permeable material having disposed thereon a malodor containing compound selected from the group consisting of: amine-containing compound and thiol-containing compound, wherein the apparatus includes a volatile material having a volatile carbonyl containing compound having a vapor pressure of at least 0.025 torr at 25 degrees Celsius; and
b) exposing the volatile material to the environment without aerosol means such that the volatile carbonyl containing compound vaporizes from the apparatus and deposits on at least a portion of the surface;
wherein the carbonyl containing compound undergoes a nucleophilic addition in the presence of the malodor containing compound, and
wherein exposing the volatile material to the environment does not comprise emitting a non-volatile compound.