Active polymeric filters
AssigneeEmpire Technology Development LLC
InventorsAngele Sjong, Kraig K. Anderson
Life of this patent
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Abstract
A compound includes a polymer where the polymer includes a pendant dioxirane moiety. Cost-effective, facilitated generation of a polymer including a pendant dioxirane moiety allows for the compound to be disposable or be easily recycled. The compound can be used in air purification and liquid purification to not only remove particulate matter, but also to destroy microorganisms and remove volatile organic compounds.
Claims20
A process of gas purification comprising passing a gas through a filter, wherein the filter comprises a polymer comprising a pendant dioxirane moiety represented by Formula I or II:
- wherein:
- the carbon atom of Formula II is in a polymer chain of the polymer;
- R1 is alkylene, perhaloalkylene, carbonyl, carboxyl, alkylcarboxyl, carboxyalkyl, or alkylcarboxyalkyl;
- R2 is an electron withdrawing group;
- and
- R3 is H, alkyl, perhaloalkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, amino, carbonyl, carboxyl, alkylcarboxy, carboxyalkyl or alkylcarboxyalkyl.
A process of liquid purification comprising passing a liquid through a filter, wherein the filter comprises a polymer comprising a pendant dioxirane moiety represented by Formula I or II:
- wherein:
- the carbon atom of Formula II is in a polymer chain of the polymer;
- R1 is alkylene, perhaloalkylene, carbonyl, carboxyl, alkylcarboxyl, carboxyalkyl, or alkylcarboxyalkyl;
- R2 is an electron withdrawing group;
- and
- R3 is H, alkyl, perhaloalkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, amino, carbonyl, carboxyl, alkylcarboxy, carboxyalkyl or alkylcarboxyalkyl.
A process of gas purification comprising passing a gas through a filter, wherein the filter comprises a polymer comprising a pendant dioxirane moiety represented by Formula I:
- wherein:
- R1 is alkylene, perhaloalkylene, carbonyl, carboxyl, alkylcarboxyl, carboxyalkyl, or alkylcarboxyalkyl;
- R2 is —N+R4R5R6, halogen, NO2, C(O)H, CO2R7, alkoxy or perhaloalkyl;
- R3 is H, alkyl, perhaloalkyl, cycloalkyl, aryl, heteroaryl, heterocyclyl, amino, carbonyl, carboxyl, alkylcarboxy, carboxyalkyl or alkylcarboxyalkyl;
- R4 is H, alkyl, or cycloalkyl;
- R5 is H, alkyl, or cycloalkyl;
- R6 is H, alkyl, or cycloalkyl;
- and
- R7 is H, alkyl, or cycloalkyl.
A process of gas purification comprising passing a gas through a filter, wherein the filter comprises a polymer comprising a pendant dioxirane moiety represented by Formula IV:
- wherein:
- the carbon atom of Formula IV is in a polymer chain of the polymer;
- R8 is —N+R4R5 or alkyl;
- R9 is —N+R4R5 or alkyl;
- each R4 is independently H, alkyl, or cycloalkyl;
- and
- each R5 is independently H, alkyl, or cycloalkyl.
Dependencies are inferred from the claim text.