# US 9,433,234 B2 · Composition for odor removal comprising cucurbituril

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- Number: US 9,433,234 B2
- Document ID: US9433234B2
- Status: Granted
- Kind: B2
- Application number: 14/443,354
- Filed: 2013-11-15
- Published: 2015-11-05
- Granted: 2016-09-06
- Earliest claimed: 2012-11-16
- Assignees: Postech Academy-Industry Foundation
- Applicants: Postech Academy-Industry Foundation
- Inventors: Kimoon Kim; Young Ho Ko; Su Hyun Lee; Selvapalam Narayanan; Don Wook Lee
- Web page: https://patentgrep.com/patent/US9433234B2

## CPC

- A23L 5/273: {using adsorption or absorption agents, resins, synthetic polymers, or ion exchangers}
- A61L 9/01: Deodorant compositions {(compositions released by contact with a liquid A61L9/05)}
- C07D 487/22: in which the condensed system contains four or more hetero rings
- A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

## Abstract

Disclosed herein is a composition for removing odor, the composition including cucurbituril. The composition can capture and remove various kinds of odor materials (particularly, ammonium ion-containing bad odor, such as a fishy smell or the like) because cucurbituril can interact with various odor materials using its hydrophobic cavity and both inlets covered with carbonyl groups. Therefore, this composition can be practically applied to the cleaning of air and the improvement of an environment.

## Claims

### Claim 1

A composition for removing odor, the composition comprising a compound represented by Chemical Formula 1 below:
wherein, n is an integer of 4 to 20, and X is O, S or NH,
wherein the composition comprises 45 to 100 wt % of the compound of Chemical Formula 1 of n=7, and
wherein the compound of Chemical Formula 1 is dissolved in a buffer.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the buffer is selected from the group consisting of PBS (phosphate buffered saline), Tris-HCl, Tricine, HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid), MOPS (3-(N-morpholino)propanesulfonic acid), SSC (saline sodium citrate), and MES (2-(N-morpholino)ethanesulfonic acid).

### Claim 3 (depends on 1)

The composition of claim 1, further comprising at least one additive selected from the group consisting of ethyl butyrate, camphor, menthol, hexanal, eugenol, citronellol, linalool, patchoulol, santalol, phenyl ethyl alcohol, terpineol, vanillin, benzaldehyde, methyl salicylate, isoamyl acetate, d-limonene, L-limonene, α-pinene, 2-hydroxy-p-cymene, methyl acetophenone, cis-jasmone, cyclohexane, hexane, heptane, isooctane, isopentane, pentane, dimethyl ether, diethyl ether, methanol, ethanol, propanol, isopropanol, butanol, acetone and propellants.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the composition captures an odor molecule having an amino group or a carboxyl group.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the odor is emitted from an odor emission material selected from onion, garlic, pork, fish, fermented fish, mold, bacteria, body fluids, leather, sewage, and industrial wastewater.

### Claim 6 (depends on 3)

The composition of claim 3, wherein the compound is configured to form a complex with an odor molecule having an amino group or carboxyl group.

### Claim 7 (depends on 3)

The composition of claim 3, wherein the composition is configured to capture odor from one or more selected from the group consisting of onion, garlic, pork, fish, fermented fish, mold, bacteria, body fluids, leather, sewage and wastewater.