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US 11,229,897 B2Granted
Carbon dioxide sorbents for air quality control
AssigneeBASF SE
InventorsRiichiro Kimura, Mark Buelow, John Kauffman, Pascaline Tran, Sai Ping Shum, Jeffrey Alan Levine, Wolfgang Ruettinger, David Weinberger
Life of this patent
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Abstract
Carbon dioxide and VOC sorbents that include a porous support impregnated with an amine compound are provided. The sorbents include a gas-adsorbing material coated onto the porous support. The gas-adsorbing material includes a polyamine which is produced using a process that is free of formaldehyde as a reaction product and/or a reactant.
Claims11
A sorbent comprising:
- a porous support;
- and
- a gas-adsorbing material coated onto the porous support, the gas-adsorbing material comprising one or more polyamines, wherein the one or more polyamines are produced from a reaction of an amine compound with a reactant, wherein the reactant comprises a carbonate ester compound or a ketone compound, and wherein the reaction is free of formaldehyde as a reaction product and/or a reactant.
A sorbent comprising:
- a porous support;
- and
- a gas-adsorbing material coated onto the porous support, the gas-adsorbing material comprising one or more polyamines produced according to a reaction of pentaethylenehexamine and dimethyl carbonate, wherein the reaction is free of formaldehyde as a reaction product and/or a reactant.
Dependencies are inferred from the claim text.