KR102424389B1 - Aerosol generating article and system comprising adsorbent - Google Patents

Abstract

The present disclosure relates to aerosol-generating articles and systems comprising an adsorbent.

Description

Aerosol-generating articles and systems comprising adsorbents {AEROSOL GENERATING ARTICLE AND SYSTEM COMPRISING ADSORBENT}

The present disclosure relates to aerosol-generating articles and systems comprising an adsorbent.

In recent years, there has been an increasing demand for an alternative method that overcomes the disadvantages of conventional cigarettes. For example, research into a technology for generating an aerosol by transferring heat from a combustible heat source to a physically separated aerosol-forming substrate is being actively conducted.

However, when a combustible heat source is used to heat the aerosol-forming substrate, there is a problem in that harmful components are generated from the combustible heat source.

The aerosol-generating article according to the embodiment can solve the problems of the prior art described above.

However, the technical problems are not limited to the above, and other technical problems may be inferred from the following examples.

A first aspect of the present disclosure provides an aerosol-generating article comprising: a first portion comprising a combustible heat source; a second portion comprising an aerosol-generating material and an adsorbent; and a third portion comprising tobacco material, wherein the first portion, the second portion, and the third portion are arranged in sequence with respect to a longitudinal direction of the aerosol-generating article, wherein the second portion comprises: , an aerosol-generating article comprising a core region containing an adsorbent and a shell region surrounding the core region and containing an aerosol-generating material.

In an embodiment, the second portion is disposed between the first portion and the third portion, and the core region may include a porous support and a transition metal compound contained in the porous support.

In an embodiment, the aerosol-generating article further comprises a connection portion physically connecting the first portion and the second portion, wherein the connection portion comprises the first portion such that the first portion is disposed at a distal end of the aerosol-generating article. part can be kept.

In an embodiment, the connection part may include a first cavity having a constant diameter therein.

In an embodiment, the connection part includes a first cavity therein, and the first cavity includes a first region and a second region that are separated from each other based on a cross-section of the connection part, and the first region is constant. has a diameter, and the second region may have a diameter that continuously decreases along a length direction of the connection part.

In an embodiment, the connecting portion comprises a first cavity therein, the first cavity comprising a first passage having a constant diameter d1, the first cavity being divided in the first passage and each having a constant diameter a second passage with d2, a third passage, and a fourth passage.

In an embodiment, the diameter d1 may exceed the diameter d2.

In an embodiment, the aerosol-generating article further comprises a fourth portion comprising a cooling material, and a fifth portion comprising a filter material, wherein the aerosol-generating article comprises the connection portion, the second portion, and the third portion It may further include a thermally conductive wrapper surrounding all the parts.

In an embodiment, the second part may include 80 wt% or less of the aerosol-generating material based on the total weight of the second part.

In an embodiment, the adsorbent may include cobalt oxide, platinum, copper-zinc oxide, and combinations thereof.

A second aspect of the present disclosure may provide an aerosol-generating system, wherein the first portion of the aerosol-generating article according to the first aspect is ignited to generate an aerosol.

In an embodiment, when the first part is combusted, the core region of the second part adsorbs at least a portion of the gas component generated in the first part, and the shell region of the second part emits an aerosol can cause

In an embodiment, when the first portion is burned, the adsorbent may adsorb at least a portion of the gas component generated in the first portion.

In an embodiment, the heat generated in the first part may be transferred to the second part through the connection part.

Means for solving the problems are not limited to the above, and may include all matters that can be inferred by those skilled in the art throughout the present specification.

According to embodiments, some components, such as hydrocarbons generated from combustible heat sources, can be effectively removed inside the aerosol-generating article. Accordingly, the user may be provided with an excellent smoking feeling.

Effects of the present disclosure are not limited to the above, and may include all effects inferred from the configuration to be described later.

1 is a diagram schematically showing the configuration of an aerosol-generating article comprising a combustible heat source.
2 is a diagram schematically showing the configuration of an aerosol-generating article according to an embodiment.
3A is a perspective view showing the configuration of a first part and a connection part of the aerosol-generating article according to the first embodiment;
3b is a cross-sectional view aa' of the configuration of a first part and a connection portion of an aerosol-generating article according to a first embodiment;
FIG. 3C is a view showing the configuration of the first part and the connection part of the aerosol-generating article according to the first embodiment from the side of the connection part.
4A is a perspective view showing the configuration of a first part and a connection part of the aerosol-generating article according to the second embodiment.
Figure 4b is a cross-sectional view aa' of the configuration of a first part and a connecting portion of an aerosol-generating article according to a second embodiment;
4C is a view showing the configuration of the first part and the connection part of the aerosol-generating article according to the second embodiment from the side of the connection part.
5A is a perspective view showing the configuration of a first part and a connection part of the aerosol-generating article according to the third embodiment.
Fig. 5b is a cross-sectional view aa' of the configuration of a first part and a connecting portion of an aerosol-generating article according to a third embodiment;
FIG. 5C is a view showing the configuration of the first part and the connection part of the aerosol-generating article according to the third embodiment from the side of the connection part.
6 is a view specifically showing the configuration of the aerosol-generating article according to the embodiment.

Terms used in the embodiments are selected as currently widely used general terms as possible while considering the functions in the present disclosure, which may vary depending on intentions or precedents of those of ordinary skill in the art, emergence of new technologies, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present disclosure should be defined based on the meaning of the term and the contents of the present disclosure, rather than the simple name of the term.

When a part "includes" a component throughout the specification, this means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, terms such as “…unit” and “…module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software.

Hereinafter, with reference to the accompanying drawings, the embodiments of the present disclosure will be described in detail so that those of ordinary skill in the art to which the present disclosure pertains can easily implement them. However, the present disclosure may be implemented in several different forms and is not limited to the embodiments described herein.

Throughout the specification, "A and/or B" means at least one of A and B.

Throughout the specification, "on" means that a member is disposed on one surface of another member, and includes cases in which a member is disposed in contact with or without contact with another member.

Throughout the specification, "longitudinal direction of the aerosol-generating article" means the direction in which the length of the aerosol-generating article extends or the direction in which combustion proceeds when the aerosol-generating article is combusted.

Throughout the specification, "porous" refers to the property of an object having several voids inside or on its surface.

Throughout the specification, the term “transition metal” refers to an element corresponding to Groups 3 to 12 of the Chemical Periodic Table.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

1 is a diagram schematically showing the configuration of an aerosol-generating article comprising a combustible heat source.

Referring to FIG. 1 , the aerosol-generating article may include, for example, a combustible heat source, a metal barrier, a medium, and the like. Here, the metal barrier may prevent the combustible heat source from coming into direct contact with the medium, and may prevent some of the components generated from the combustible heat source from moving to the medium.

However, when a metal barrier as shown in FIG. 1 is used, an airflow passage through the entire aerosol-generating article may not be effectively secured.

2 is a diagram schematically showing the configuration of the aerosol-generating article 100 according to the embodiment.

A first aspect of the present disclosure includes a first portion 110 comprising a combustible heat source, a second portion 120 comprising an aerosol-generating material and an adsorbent, and a third portion 130 comprising a tobacco material. , an aerosol-generating article 100 may be provided.

In an embodiment, the first portion 110 , the second portion 120 , and the third portion 130 may be arranged in order with respect to the longitudinal direction of the aerosol-generating article 100 . Here, the first part 110 , the second part 120 , and the third part 130 may be disposed adjacent to each other, but may be disposed while maintaining a predetermined distance from each other. Also, as an example, a member may be disposed between the first part 110 and the second part 120 .

The first portion 110 may be a combustible heat source. The combustible heat source may be, for example, a heat source composed of carbon. In addition, the combustible heat source may have a porous structure. However, the present disclosure is not necessarily limited to the above, and the present disclosure may include all heat sources of known materials capable of providing heat to the aerosol-generating article 100 .

The second portion 120 may include a core region containing the adsorbent and a shell region surrounding the core region and containing the aerosol-generating material. The second part 120 will be described in more detail below with reference to FIG. 6 .

The third portion 130 may include tobacco material. In addition, the third portion 130 may further include an aerosol-generating material. Tobacco material may include, for example, at least one of chopped cut filler, leaf cut filler, tobacco leaves, expanded tobacco, and nicotine extract. Tobacco material may include a nicotine component. The aerosol-generating material may include, for example, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. For example, the third portion 130 may include platelet cut filler dipped in glycerin. However, the present disclosure is not necessarily limited to the above.

In an embodiment, the aerosol-generating article 100 may further include a connection portion 140 that physically connects the first portion 110 and the second portion 120 . The connection part 140 may be disposed between the first part 110 and the second part 120 . The connection part 140 may be formed of, for example, a metal material or a ceramic material.

The connection part 140 may transfer heat generated in the first part 110 to the second part 120 . In addition, the connection unit 140 may focus the airflow flowing in from the outside of the aerosol-generating article 100 to the second part 120 and deliver it. The specific structure of the connection unit 140 will be described in detail below with reference to FIGS. 3 to 5 .

In an embodiment, the aerosol-generating article 100 may further comprise a fourth portion 150 containing a cooling material and a fifth portion 160 containing a filter material.

The fourth portion 150 may include a cooling material. The fourth part 150 may cool the airflow passing through the first part 110 to the third part 130 . The fourth part 150 may be made of a polymer material or a biodegradable polymer material, and may have a cooling function. For example, the fourth part 150 may be made of pure polylactic acid (PLA), but is not limited thereto.

Alternatively, the fourth part 150 may be made of a cellulose acetate filter having a plurality of holes. However, the fourth part 150 is not limited to the above-described examples, and the material performing the function of cooling the aerosol may correspond to this without limitation. For example, the fourth part 150 may be a tube filter or a paper tube filter including a hollow.

The fifth portion 160 may include filter material. The fifth part 160 may be, for example, a cellulose acetate filter. Meanwhile, the shape of the fifth part 160 is not limited. For example, the fifth part 160 may be a cylindrical rod, or a tubular rod including a hollow therein. Also, the fifth part 160 may be a recess type rod. If the fifth part 160 includes a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

The fifth part 160 may be manufactured to generate flavor. As an example, the flavoring liquid may be injected into the fifth part 160 , and a separate fiber to which the flavoring liquid is applied may be inserted into the fifth part 160 .

Further, the aerosol-generating article 100 may further include a wrapper 170 that surrounds the entire aerosol-generating article 100 . Specifically, the wrapper 170 may surround the first part 110 , the second part 120 , the third part 130 , the fourth part 150 , and the fifth part 160 . Further, when the aerosol-generating article 100 includes the connection portion 140 , the wrapper 170 may surround the connection portion 140 .

When the wrapper 170 surrounds each component of the aerosol-generating article 100 , the bonding force between each component may increase. For example, by the wrapper 170, the first portion 110, the connecting portion 140, the second portion 120, the third portion 130, the fourth portion 150, and the fifth portion 160 ) have a bonding force to each other and may be disposed adjacent to each other.

The wrapper 170 may be formed of, for example, a cellulose wrapper. However, the present disclosure is not necessarily limited thereto.

As an example, when the aerosol-generating article 100 is used by a user, the first portion 110 is ignited, and the user can inhale the fourth portion 160 through the mouth. Accordingly, external air of the aerosol-generating article 100 may be introduced into the first portion 110 . Outside air may form an airflow within the aerosol-generating article 100 .

Referring to FIG. 2 , when the aerosol-generating article 100 includes the connection part 140 , the airflow formed in the first part 110 may be transmitted to the second part 120 through the connection part 140 . In this case, the airflow formed in the first part 110 may transfer heat generated in the first part 110 to the second part 120 .

In an embodiment, the connector 140 may include a cavity. In addition, as an example, the diameter of the cavity upstream of the connection part 140 may exceed the diameter of the cavity downstream of the connection part 140 .

Throughout the specification, the terms "upstream" and "downstream" refer to "upstream", wherein when a user inhales outside air using the aerosol-generating article, the portion where air enters from the outside of the aerosol-generating article is "upstream", and the aerosol-generating article The portion where the air exits from the inside to the outside is “downstream”. The terms “upstream” and “downstream” may be used to indicate the relative position or orientation between the parts or segments constituting the aerosol-generating article.

In an embodiment, when the diameter of the cavity upstream of the connection portion 140 exceeds the diameter of the cavity downstream of the connection portion 140 , the airflow formed in the first portion 110 is concentrated and transmitted to the second portion 120 . can be Specifically, the airflow formed in the first part 110 may be concentrated and delivered to the center of the second part 120 . In addition, the formed airflow may be provided to the user through the third portion 130 , the fourth portion 150 , and the fifth portion 160 .

3A to 5C are diagrams specifically illustrating the structure of the connection parts 200 , 300 , and 400 .

3A is a perspective view illustrating the configuration of the first part 210 and the connection part 200 of the aerosol-generating article according to the first embodiment.

Referring to FIG. 3A , the connection part 200 may have a cylindrical shape as a whole. However, the present invention is not necessarily limited thereto, and the connection unit 200 may have a structure having a shape of a rectangle or a triangle in cross section.

In an embodiment, the connection part 200 may be formed entirely of a metal material or a ceramic material, for example. In addition, the connection part 200 may be integrally formed as a single material. The connection part 200 may include a cavity therein. Specifically, the connection part 200 may include a plurality of cavities, and the connection part 200 may include a single cavity.

In an embodiment, the connector 200 may include a first cavity 220 . The first cavity 220 may have, for example, a constant diameter. Also, as an example, the diameter of the first cavity 220 may be similar to the diameter of the first portion 210 . Accordingly, the first part 210 may be inserted into one end of the connection part 200 . The connector 200 may retain the first portion 210 such that the first portion 210 is disposed at the distal end of the aerosol-generating article (not shown) or at the end of the connector 200 . Specifically, a coupling force by friction may be formed between the connection part 200 and the first part 210 .

3B is a cross-sectional view a-a' of the configuration of the first part 210 and the connecting portion 200 of the aerosol-generating article according to the first embodiment.

Referring to FIG. 3B , the first part 210 may be inserted into the first cavity 220 of the connection part 200 . All or part of the first portion 210 may be inserted into the first cavity 220 of the connector 200 , for example, about half of the first portion 210 may be inserted into the first cavity of the connector 200 . 220 may be inserted.

In an embodiment, the connection part 200 may physically connect the first part 210 and the second part (not shown). The connecting portion 200 may maintain the first portion 210 to be disposed at the end of the connecting portion 200 or at the end of the aerosol-generating article (not shown), the connecting portion 200 being the heat generated in the first portion 210 . can be effectively transferred to the second part or the third part.

FIG. 3C is a view showing the configuration of the first part 210 and the connection part 200 of the aerosol-generating article according to the first embodiment from the side of the connection part 200 .

In an embodiment, the connecting portion 200 may include a first cavity 220 therein, and the first cavity 220 may extend in the longitudinal direction of the connecting portion 200 .

4A is a perspective view illustrating the configuration of the first part 310 and the connection part 300 of the aerosol-generating article according to the second embodiment.

Referring to FIG. 4A , similarly to FIG. 3A , the connection part 300 may include a first cavity 320 . The first portion 310 may be inserted at the end of the connector 300 or at the end of the aerosol-generating article (not shown).

4B is a cross-sectional view a-a' of the configuration of the first part 310 and the connecting portion 300 of the aerosol-generating article according to the second embodiment.

Referring to FIG. 4B , the connection part 300 includes a first cavity 320 therein, and the first cavity 320 includes a first region 330 that is separated from each other based on one cross-section of the connection part 300 , and The second region 340 may be included. Here, the first region 330 may have a constant diameter, and the second region 340 may have a continuously decreasing diameter along the length direction of the connection part 300 . Also, the diameter of the second region 340 may continuously decrease along the length direction of the connection part 300 and then have a constant diameter. However, the present disclosure is not necessarily limited to the above, and the present disclosure may include all known various shapes for the first cavity 320 of the connection part 300 .

In an embodiment, the first cavity 320 is formed as shown in FIG. 3B , so that the airflow formed in the first portion 310 passes through the first region 330 and the second region 340 and passes through the second portion (not shown). City) can be concentrated and transmitted toward the center of the city.

FIG. 4C is a view showing the configuration of the first part 310 and the connection part 300 of the aerosol-generating article according to the second embodiment from the side of the connection part 300 .

In the case of FIG. 4C , it can be seen that the diameter of the first cavity 320 is smaller than that of FIG. 3C .

5A is a perspective view illustrating the configuration of the first part 410 and the connection part 400 of the aerosol-generating article according to the third embodiment.

Referring to FIG. 5A , similarly to FIG. 3A , the connection part 300 may include a first cavity 320 . The first portion 310 may be inserted at the end of the connector 300 or at the end of the aerosol-generating article (not shown).

5B is a cross-sectional view a-a' of the configuration of the first part 310 and the connecting portion 300 of the aerosol-generating article according to the third embodiment.

Referring to FIG. 5B , the connection part 400 may include a first cavity therein. The first portion 410 may be inserted at the end of the connector 400 or at the end of the aerosol-generating article (not shown).

FIG. 5C is a view showing the configuration of the first part and the connection part 400 of the aerosol-generating article according to the third embodiment from the side of the connection part 400 .

Referring to FIG. 5C , the connection part 400 may include a first cavity. As an example, the first portion 410 may be inserted into one end of the first cavity, and three passages may be formed at the other end of the first cavity. Specifically, the first cavity includes a first passage (not shown) having a constant diameter d1 at one end, the first cavity is divided from the first passage at the other end, and a second passage 422 having a constant diameter d2, respectively; It may include a third passage 423 and a fourth passage 424 . The diameter d1 of the first passage may exceed the diameter d2 of the second passage 422 to the fourth passage 424 .

In the embodiment, in the case of FIG. 5C, unlike FIGS. 5A or 5B, the airflow formed in the first portion 410 passes through the first passage to the second passage 422, the third passage 423, and the fourth passage ( 424) can be distributed. Accordingly, when the user uses the aerosol-generating article (not shown) according to the embodiment, a new airflow path may be formed inside the aerosol-generating article.

6 is a diagram specifically showing the configuration of the aerosol-generating article 500 according to the embodiment.

Referring to FIG. 6 , the aerosol-generating article 500 may include a first portion 510 , a connection portion 540 , a second portion 520 , and a third portion 530 . Although not shown in FIG. 6 , the aerosol-generating article 500 may further include a fourth part (not shown) and a fifth part (not shown).

In the embodiment of FIG. 6 , the foregoing may be equally applied to the first part 510 , the connection part 540 , the second part 520 , and the third part 530 .

The second portion 520 may include a core region 521 containing an adsorbent. The core region 521 may include a porous support, and the adsorbent may include a transition metal compound contained in the porous support. The porous support can be, for example, quartz, and the adsorbent can be, for example, cobalt oxide, platinum, copper-zinc oxide, and combinations thereof. The adsorbent may also include a zeolite.

The porous support and the adsorbent may adsorb at least a portion of the gas component generated from the combustible heat source. Referring to FIG. 6 , the airflow generated in the first part 510 passes through the core region 521 through the connection part 540 , and some components of the airflow may be adsorbed by the porous support and the adsorbent. Accordingly, the remaining components of the formed airflow may be transferred to the third portion 530 or the like together with heat.

The porous support and the adsorbent may adsorb components harmful to the human body among gas components generated from the combustible heat source. Specifically, the porous support and the adsorbent can adsorb organic compounds such as aliphatic hydrocarbons or aromatic hydrocarbons generated from a combustible heat source.

The second portion 520 may include a shell region 523 surrounding the core region 521 and containing the aerosol-generating material. The shell region 523 includes an aerosol-generating material, and an aerosol may be generated in the shell region 523 through heat transferred from the first portion 510 . The second portion 520 may include an aerosol-generating material in an amount of about 80 wt% or less based on the total weight of the second portion 520 . However, the present disclosure is not necessarily limited to the above, and the present disclosure may include all various contents of the aerosol-generating material contained in the second portion 520 .

In an embodiment, the aerosol generated in the second part 520 may be mixed with the airflow formed in the connection part 540 and transferred to the third part 530 or the like together with heat.

In embodiments, the aerosol-generating article 500 may further include a thermally conductive wrapper 570 . Referring to FIG. 6 , the thermally conductive wrapper 570 may surround, for example, the connection part 540 , the second part 520 , and the third part 530 . Even when the thermally conductive wrapper 570 does not directly contact the first part 510 , the thermally conductive wrapper 570 receives heat from the connection part 540 to receive the second part 520 and the third part 530 . heat can be transferred. The thermally conductive wrapper 570 may be, for example, a metal thin film, preferably, an aluminum thin film.

A second aspect of the present disclosure may provide an aerosol-generating system, wherein the first portion 510 of the aerosol-generating article 500 according to the first aspect is ignited to generate an aerosol.

With respect to the second aspect of the present disclosure, the contents described above in the first aspect may be equally applied.

In an embodiment, when the first portion 510 is burned, the core region 521 of the second portion 520 adsorbs at least a portion of the gas component generated in the first portion 510, and the second portion Shell region 523 of 520 may generate an aerosol.

In an embodiment, when the first portion 510 is burned, the adsorbent may adsorb at least some or all of the gas components generated in the first portion 510 .

In an embodiment, heat generated in the first part 510 may be transferred to the second part 520 through the connection part 540 .

The description of the above-described embodiments is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true scope of protection of the invention should be defined by the appended claims, and all differences within the scope of equivalents to those described in the claims should be construed as being included in the scope of protection defined by the claims.

100: aerosol-generating article
110: first part
120: second part
130: third part
140: connection
150: fourth part
160: fifth part
170: wrapper
200, 300, 400: connection
210, 310, 410: first part
220, 320, 420: first cavity
500: aerosol-generating article
510: first part
520: second part
530: third part
540: connection
570: thermally conductive wrapper

Claims (14)

In an aerosol-generating article,
a first portion comprising a combustible heat source;
a second portion comprising an aerosol-generating material and an adsorbent;
a third portion comprising tobacco material; and
a connection part physically connecting the first part and the second part;
the first part, the connecting part, the second part, and the third part are arranged in order with respect to the longitudinal direction of the aerosol-generating article,
the second portion comprises a core region containing an adsorbent and a shell region surrounding the core region and containing an aerosol-generating material;
wherein the connecting portion holds the first portion such that the first portion is disposed at a distal end of the aerosol-generating article;
Aerosol-generating articles. The method of claim 1,
the second part is disposed between the first part and the third part;
wherein the core region comprises a porous support and a transition metal compound contained in the porous support. delete The method of claim 1,
The connection portion comprises a first cavity having a constant diameter therein. The method of claim 1,
The connecting portion includes a first cavity therein,
The first cavity includes a first area and a second area that are separated from each other based on a cross-section of the connection part,
wherein the first region has a constant diameter and the second region has a continuously decreasing diameter along the longitudinal direction of the connecting portion. The method of claim 1,
The connecting portion includes a first cavity therein,
the first cavity comprises a first passage having a constant diameter d1;
wherein the first cavity comprises a second passageway, a third passageway, and a fourth passageway divided in the first passageway and each having a constant diameter d2. 7. The method of claim 6,
wherein said diameter d1 exceeds said diameter d2. The method of claim 1,
wherein the aerosol-generating article further comprises a fourth portion comprising a cooling material, and a fifth portion comprising a filter material,
wherein the aerosol-generating article further comprises a thermally conductive wrapper surrounding all of the connection portion, the second portion, and the third portion. The method of claim 1,
wherein the second portion comprises 80 wt % or less of the aerosol-generating material, based on the total weight of the second portion. The method of claim 1,
The sorbent comprises cobalt oxide, platinum, copper-zinc oxide, and combinations thereof. An aerosol-generating system, wherein the first portion of the aerosol-generating article according to claim 1 is ignited to generate an aerosol. 12. The method of claim 11,
when the first part is combusted, the core region of the second part adsorbs at least a portion of the gaseous component generated in the first part, and the shell region of the second part generates an aerosol system. 12. The method of claim 11,
and when the first portion is combusted, the adsorbent adsorbs at least a portion of the gaseous component generated in the first portion. 12. The method of claim 11,
The heat generated in the first part is transferred to the second part through the connection part.

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