# US 12,599,891 B2 · Composite material, gas adsorbent, and method for producing composite material

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- Number: US 12,599,891 B2
- Document ID: US12599891B2
- Status: Granted
- Kind: B2
- Application number: 17/741,097
- Filed: 2022-05-10
- Published: 2022-11-03
- Granted: 2026-04-14
- Earliest claimed: 2016-09-30
- Assignees: Japan Science and Technology Agency
- Applicants: Japan Science and Technology Agency
- Inventors: Takaiku Yamamoto; Masaya Matsuoka; Yu Horiuchi
- Web page: https://patentgrep.com/patent/US12599891B2

## CPC

- B01J 20/226: {Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F)}
- B01D 53/02: by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)}
- B01J 20/22: comprising organic material
- B01J 20/262: {obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G)}
- B01J 20/28: characterised by their form or physical properties
- B01J 20/28047: {Gels}
- B01J 20/28085: {being more than 50 nm, i.e. macropores}
- B01J 20/30: Processes for preparing, regenerating, or reactivating
- B01J 20/3071: {Washing or leaching}
- B01J 20/3212: {consisting of a polymer obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds}
- B01J 20/3236: {containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts}
- B01J 20/3272: {Polymers obtained by reactions otherwise than involving only carbon to carbon unsaturated bonds}
- C08G 77/06: Preparatory processes
- C08L 83/04: Polysiloxanes
- C08L 101/00: Compositions of unspecified macromolecular compounds
- B01D 2253/204: Metal organic frameworks (MOF's)
- B01D 2257/502: Carbon monoxide
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

A method for producing a composite material containing a porous body having pores inside the porous body and a porous coordination polymer compound, in which the porous body has a network structure of Si—O bonds obtained by copolymerizing a dialkoxysilane and a trialkoxysilane, and the porous coordination polymer compound is carried in the pores of the porous body via a solvent.

## Claims

### Claim 1

A method for producing a composite material containing a porous body having pores inside the porous body and a porous coordination polymer compound, comprising
carrying a porous coordination polymer compound into the pores of a porous body via a solvent by:
forming a dispersion liquid of a porous coordination polymer compound by dispersing the porous coordination polymer compound in the solvent; and
bringing the dispersion liquid into contact with the porous body to introduce the porous coordination polymer compound into the pores,
wherein the solvent has a property of swelling the porous body;
washing the porous body to remove the porous coordination polymer compound that has not been carried on the porous body after the porous coordination polymer compound is brought into contact with the porous body; and
drying the porous body to remove the solvent.

### Claim 2 (depends on 1)

The method for producing a composite material according to claim 1, wherein the solvent is at least one solvent selected from the group consisting of methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, benzene, hexane, acetaldehyde, acetone, cyclohexane, and N,N-dimethylformamide.

### Claim 3 (depends on 1)

The method for producing a composite material according to claim 1, wherein the porous body is brought into contact with the dispersion liquid while being swelled.

### Claim 4 (depends on 1)

The method for producing a composite material according to claim 1, wherein when the porous body is contacted with the dispersion liquid and a volume of the porous body before the contact is taken as V0 and a volume of the porous body after the contact is taken as V1, a volume expansion rate, V1/V0, of the porous body is 1.2 to 2.0.