# US 10,118,153 B1 · Gas absorbent particle and method for making same

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- Number: US 10,118,153 B1
- Document ID: US10118153B1
- Status: Granted
- Kind: B1
- Application number: 16/056,642
- Filed: 2018-08-07
- Granted: 2018-11-06
- Earliest claimed: 2018-08-07
- Assignees: AAC Technologies Pte. Ltd.
- Applicants: AAC Technologies Pte. Ltd.
- Inventors: Yanyan Jin; Ning Kang
- Web page: https://patentgrep.com/patent/US10118153B1

## CPC

- B01J 20/261: {obtained by reactions only involving carbon to carbon unsaturated bonds (macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F)}
- B01J 20/02: comprising inorganic material
- B01J 20/22: comprising organic material
- B01J 20/28004: {Sorbent size or size distribution, e.g. particle size}
- B01J 20/28016: {Particle form}
- B01J 20/2803: {Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products}
- B01J 20/3042: {Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent}
- H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture}
- H04R 1/2811: {for loudspeaker transducers}
- H04R 1/2888: {for loudspeaker transducers}
- H04R 1/288: {for loudspeaker transducers}
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

The present application discloses method for making air adsorbent particles. The method includes the steps of: providing and mixing porous powder, water, adhesive, and additive agent for obtaining sizing agent; obtaining air adsorbent particles by spray shaping, drying, and screening the sizing agent. The mass ratio between the porous powder, water, adhesive and the additive agent is 1:(0.5˜8):(0.01˜0.16):(0.001˜0.15). Particles obtained by the method of the present application have higher strength.

## Claims

### Claim 1

A method for making air adsorbent particles, comprising the steps of:
providing and mixing porous powder, water, adhesive, and additive agent for obtaining sizing agent;
obtaining air adsorbent particles by spray shaping, drying, and screening the sizing agent;
wherein the mass ratio between the porous powder, water, adhesive and the additive agent is 1:(0.5˜8):(0.01˜0.16):(0.001˜0.15).

### Claim 2 (depends on 1)

The method for making air adsorbent particles as described in claim 1, wherein the porous powder comprises a molecular sieve.

### Claim 3 (depends on 1)

The method for making air adsorbent particles as described in claim 1, wherein the adhesive comprises at least one of a polyvinyl alcohol solution, a polystyrene acrylate emulsion, a polyvinyl acetate-acrylate emulsion, an ylate emulsion, a polyethylene-vinyl acetate emulsion, a polystyrene latex, a polyvinyl pyrrolidone water solvent, a polyacrylic hydrosol, a polybutadiene-styrene emulsion, and a polyacrylamide aqueous solution.

### Claim 4 (depends on 3)

The method for making air adsorbent particles as described in claim 3, wherein the adhesive is polystyrene acrylate emulsion and/or polyvinyl acetate-acrylate emulsion.

### Claim 5 (depends on 1)

The method for making air adsorbent particles as described in claim 1, wherein the additive comprises tween, glyceride, or polyhydric alcohols.

### Claim 6 (depends on 5)

The method for making air adsorbent particles as described in claim 5, wherein the tween is tween 20 or tween 80, the glyceride is polyglycerol-2-triiso-stearate, and the polyhydric alcohol is polyethylene glycol or sorbitol.

### Claim 7 (depends on 1)

The method for making air adsorbent particles as described in claim 1, wherein the mass ratio between the porous powder, water, adhesive and the additive agent is 1:(0.7˜4):(0.03˜0.1):(0.005˜0.07).

### Claim 8 (depends on 1)

Air adsorbent particles, wherein the particles are made by the method claimed in claim 1.

### Claim 9 (depends on 8)

The air adsorbent particles as described in claim 8, wherein dimeters of the particles are ranged 350 micrometer˜450 micrometer.

### Claim 10 (depends on 8)

A speaker box having a housing with an accommodating space, a spacer in the housing for dividing the accommodating space into a front cavity and a rear cavity, and a speaker received in the front cavity of the accommodating space, wherein the speaker box further comprises air adsorbent particles as described in claim 8, and the particles are filled in the rear cavity.