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US 11,439,721 B2Granted
Aldehyde scavenger and method for removing aldehydes
AssigneesTosoh Corporation, Sagami Chemical Research Institute
InventorsYukinori Sudo, Takahiro Masuda, Osamu Kobayashi, Takuri Ozaki, Kenji Hirai
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Abstract
To provide an aldehyde scavenger and a method for removing aldehydes by using the same, for quickly and continuously capturing aldehydes. An aldehyde scavenger comprising at least one O-substituted hydroxylamine or at least one chemically acceptable salt thereof, is used against an aldehyde generation source.
Claims16
A method for removing aldehydes, comprising:
- bringing an aldehyde scavenger into contact with an aldehyde generation source to remove the aldehydes,
- wherein the aldehyde scavenger includes at least one O-substituted hydroxylamine, or at least one chemically acceptable salt of the O-substituted hydroxylamine, and the chemically acceptable salt is at least one of a hydrochloride, a hydrobromide, a perchlorate, a silicate, a tetrafluoroborate, a hexafluorophosphate, a sulfate, a nitrate, a phosphate, an acetate, a citrate, a fumarate, a maleate, a trifluoromethanesulfonate, a trifluoroacetate, a benzoate, and a p-toluenesulfonic acid salt,
- wherein the O-substituted hydroxylamine has formula (1)
- R1—ONH2 (1)
- where R1 is a methyl group or an ethyl group which, at a chemically acceptable position, is substituted by at least a carboxy group and is optionally further substituted by a phenyl group.
2 more elements
Dependencies are inferred from the claim text.