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US 10,252,210 B2Granted
Methods for reducing particulates in the air
AssigneeThe Procter & Gamble Company
InventorsChisomaga Ugochi Nwachukwu, Alan Edward Sherry
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Abstract
Methods for reducing particulates in the air are disclosed. In some embodiments, the method comprises spraying a composition having an effective amount of a zwitterionic polymer, a compressed gas propellant, and an aqueous carrier in to the air. The composition agglomerates particulates upon contacting particulates in the air thereby reducing particulates in the air.
Claims11
A method for reducing particulates in the air comprising the steps of:
- providing a composition, wherein said composition comprises:
- I) about 0.001% to about 0.2%, by weight of said composition, of a zwitterionic polymer, said zwitterionic-polymer is:
- with x having a mean value of 0 to 50 mol %, y having a mean value of 10 to 95 mol %, z having a mean value of 3 to 80 mol %, with x+y+z=100%, wherein x represents the mol % of units derived from the acrylamide monomer, y represents the mol % of units derived from the acrylic acid (sodium salt) monomer, and z represents the mol % of units derived from the Diquat monomer, wherein I, which are identical or different, represent counterions;
- II) a propellant comprising a compressed gas;
- and
- III) an aqueous carrier, wherein said composition comprises a viscosity of about 1.0 to about 2.5 cps;
- and
- spraying said composition into the air such that said polymer agglomerates particulates in the air when said composition contacts particulates in the air.
5 more elements
A method for reducing particulates in the air comprising the steps of:
- providing a composition, wherein said composition comprises:
- I) about 0.001% to about 0.2%, by weight of said composition, of a zwitterionic polymer, said zwitterionic-polymer is:
- with x having a mean value of 0 to 50 mol %, y having a mean value of 10 to 95 mol %, z having a mean value of 3 to 80 mol %, with x+y+z=100%, wherein x represents the mol % of units derived from the acrylamide monomer, y represents the mol % of units derived from the acrylic acid (sodium salt) monomer, and z represents the mol % of units derived from the Diquat monomer, wherein I, which are identical or different, represent counterions;
- II) a propellant comprising a compressed gas;
- and
- III) an aqueous carrier, wherein said composition comprises a viscosity of about 1.0 to about 2.5 cps;
- and;
- spraying said composition in the air such that said polymer agglomerates particulates in the air when said composition contacts particulates in the air,
- wherein the sprayed composition comprises spray droplets having a mean particle size of from about 10 μm to about 100 μm.
6 more elements
Dependencies are inferred from the claim text.