JP2020504999A - Method and system for improving the stability of a pre-vapor formulation in an e-vaping device - Google Patents

Abstract

The pre-vapor formulation that can be included in the e-vaping device (60) can include solvent and solution compounds. The solvent can include one or more of propylene glycol and glycerin. The solution compound can include one of a sugar compound, a salt compound, and a polyethylene compound. The concentration of the solution compound can be from about 0.2 percent to about 10 percent. [Selection] Figure 2

Description

  Some exemplary embodiments relate to a pre-vapor formulation for an electronic vapor device.

  An e-vaping device, also referred to herein as an electronic vaporizing device (EVD), can vaporize a pre-vapor formulation that can be withdrawn through one or more outlets of the e-vaping device. An e-vaping device may typically include several e-vaping elements including a power section and a cartridge. The power section may include a power source such as a battery, and the cartridge may include a heater and a reservoir capable of holding a pre-vapor formulation material. The cartridge typically includes a heater in fluid communication with the pre-vapor formulation via a dispensing interface (eg, a wick), wherein the heater is configured to heat the pre-vapor formulation to produce a vapor.

  Pre-vapor formulations typically include a material or combination of materials that may be transformed into a vapor. For example, a pre-vapor formulation may be a liquid, solid, or gel formulation, including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural flavors, artificial flavors, and combinations thereof. May be included. The solvent may include at least one of glycerin and propylene glycol.

In some cases, the components of the pre-vapor formulation in the pre-vapor formulation container may react with other components, other components, or solid metal parts of the pre-vapor formulation container or cartridge. For example, if the cartridge is empty, especially when a "dry aspiration" occurs (when there is not enough pre-vape formulation supplied to the core of the e-vaping device before the vaporization is initiated by an adult vapor aspirator), or e. If the heater coil is overheated during operation of the vaporizer, the components of the pre-vapor formulation in the presence of oxygen may react with metals (such as copper or iron) in the solid part of the evaporator, resulting in free radicals. (Eg, hydroxyl radicals). Specifically, for example, metal ions such as copper ions Cu ²⁺ may react with oxygen or hydrogen peroxide. In some exemplary embodiments, free radicals may be generated via oxidation of a metal portion of a cartridge or pre-vapor formulation container. Oxidation of a pre-vapor formulation component, cartridge, or container typically depends on the presence of oxygen and redox-active transition metals that produce oxygen species such as hydroxyl radicals. The redox-active transition metal may be derived from the metal portion of the cartridge or container, or may include nicotine, water, a vapor former (such as at least one of glycerin and propylene glycol), an acid, a flavor, a fragrance, And other components added to the pre-vapor formulation, such as and combinations thereof.

  Thus, when free radicals (eg, hydroxyl radicals) are formed, they may react with components of the pre-vapor formulation, resulting in reduced stability of the pre-vapor formulation. Free radicals may also mix with the vapor generated by the e-vaping device.

  Some exemplary embodiments relate to pre-vapor formulations of an e-vaping device.

  According to some exemplary embodiments, the pre-vapor formulation of the e-vaping device may include a solvent comprising propylene glycol and glycerin and at least one of the solution compounds. The solution compound can be at least one of a sugar compound, a salt solution, and a polyethylene glycol compound.

  When the solution compound is a sugar compound, the concentration of the sugar compound in the pre-vapor formulation may be greater than 0 molar and less than or equal to 2.5 molar.

  The saccharide compound may include at least one of a monosaccharide compound, a disaccharide compound, a trisaccharide compound, and a polyol compound.

  When the sugar compound is a polyol compound, the polyol compound may include at least one of mannitol, erythritol, xylitol, and sorbitol.

  The concentration of the polyol compound in the pre-vapor formulation can be about 0.2 weight percent or more and about 10 weight percent or less based on the weight of the pre-vapor formulation.

  The concentration of the polyol compound in the pre-vapor formulation may be greater than or equal to about 0.2 weight percent and less than or equal to about 5 weight percent based on the weight of the pre-vapor formulation.

  The concentration of the polyol compound in the pre-vapor formulation can be about 5 weight percent or more and about 8 weight percent or less based on the weight of the pre-vapor formulation.

  The concentration of the polyol compound in the pre-vapor formulation may be greater than or equal to about 8 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation.

  When the solution compound is a salt solution, the salt solution may include at least one of sodium chloride, sodium citrate, sodium tartrate, sodium succinate, sodium sulfate, calcium chloride, magnesium chloride, magnesium sulfate, potassium sulfate. .

  The concentration of the salt solution in the pre-vapor formulation may be greater than 0 weight percent and up to 10 weight percent based on the weight of the pre-vapor formulation.

  When the solution compound is a polyethylene glycol (PEG) compound, the polyethylene glycol (PEG) compound may include at least one of PEG200, PEG300, and PEG400.

  The concentration of the polyethylene glycol compound in the pre-vapor formulation may be greater than about 0 weight percent and up to about 50 weight percent based on the weight of the pre-vapor formulation.

  According to some exemplary embodiments, a cartridge for an e-vaping device includes a reservoir for holding the pre-vapor formulation and a heater configured to heat the pre-vapor formulation.

  According to some exemplary embodiments, an e-vaping device may include a cartridge as described above and a power supply section coupled to the cartridge. The power section may be configured to supply power to the heater of the cartridge.

  The power section may include a rechargeable battery.

  The cartridge and power section may be releasably coupled to one another.

  The above and other features and advantages of the exemplary embodiments will become more apparent by describing the exemplary embodiments in detail with reference to the accompanying drawings. The accompanying drawings are intended to depict illustrative embodiments and should not be construed as limiting the intended claims. The accompanying drawings are not to be considered as drawn to scale unless explicitly noted.

FIG. 1 is a side view of an e-vaping apparatus according to some exemplary embodiments. FIG. 2 is a longitudinal cross-sectional view of an e-vaping device according to some exemplary embodiments. FIG. 3 is a longitudinal cross-sectional view of an e-vaping device according to some exemplary embodiments. FIG. 4 is a longitudinal cross-sectional view of an e-vaping device according to some exemplary embodiments.

  Several detailed exemplary embodiments are disclosed herein. However, the specific structural and functional details disclosed herein are merely exemplary for purposes of describing the exemplary embodiments. Some example embodiments may be embodied in many alternative forms and should not be construed as limited to only the example embodiments set forth herein.

  Thus, while some example embodiments are capable of various modifications and alternative forms, some example embodiments are shown by way of example in the drawings and will herein be described in detail. It is explained in. It should be understood, however, that the intention is not to limit the exemplary embodiments to the particular forms disclosed, but instead, the exemplary embodiments are intended to include all modifications, It covers equivalents and alternatives. Like numbers refer to like elements throughout the description of the figures.

  It will be appreciated that when an element or layer is referred to as "over", "connected to", "coupled to", or "covered" with another element or layer, May be directly on, connected to, directly connected to, or directly cover, or intervening elements or layers of, May be present. In contrast, when an element is referred to as "directly on", "directly connected to", or "directly connected to" another element or layer, an intervening element or layer Does not exist. Like numbers refer to like elements throughout this specification.

  It should be understood that the terms first, second, third, etc. may be used herein to describe various elements, regions, layers, or sections, and these elements, A region, layer, or section should not be limited by these terms. These terms are only used to distinguish one element, region, layer or section from another element, region, layer or section. Accordingly, a first element, region, layer, or section discussed below may be referred to as a second element, region, layer, or section without departing from the teachings of the exemplary embodiments. .

  Spatial relation terms (eg, “below”, “below”, “below”, “above”, “above”, and the like) may refer to a single element as illustrated in the figures. Or, it may be used herein to help describe the relationship between a feature and other elements or features. It should be understood that the term spatial relationship is intended to encompass different directions of the device during use or operation, in addition to the directions illustrated in the figures. For example, if the device in the figures is turned over, an element described as "below" or "below" another element or feature is then oriented "above" the other element or feature. Will be. Thus, the term "downward" may encompass both an upward and downward orientation. The device may be otherwise oriented (rotated 90 degrees or other orientations), and the spatial relationship descriptors used herein will be interpreted accordingly.

  The terms used in the specification are for the purpose of describing the various embodiments only, and are not intended to limit the exemplary embodiments. As used herein, the singular forms “a”, “an”, and “the” are intended to include the plural, but shall clearly be understood by context. If not, this is not the case. The terms "includes," "including," "comprises," and "comprising," as used herein, refer to the stated feature, integer, step, operation, It will be further understood that identifying the presence of an element or element does not exclude the presence or addition of one or more other features, integers, steps, acts, elements or groups thereof.

  Some example embodiments are described herein with reference to cross-sectional views, which are schematic views (and intermediate structures) of ideal embodiments of the example embodiments. In this way, a deformation from the shape of the figure, for example as a result of manufacturing techniques or tolerances, is to be expected. Accordingly, the exemplary embodiments should not be construed as limiting the shape of the regions illustrated herein, but are intended to include, for example, shape deviations resulting from manufacturing. Accordingly, the regions illustrated in the figures are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, but limit the scope of the exemplary embodiments. Not intended to.

  Unless defined otherwise, all terms (including technical and scientific terms) used herein are generally understood by one of ordinary skill in the art to which the exemplary embodiment belongs. Has the same meaning as Terms (including terms defined in commonly used dictionaries) should be construed as having a meaning consistent with the meaning of those terms in the context of the relevant art, and It will be further understood that the term is not to be construed in an unduly or overly formal sense, but expressly so unless otherwise defined herein.

  When the term "about" or "substantially" is used herein in combination with a numerical value, it is intended that the numerical value associated therewith includes a tolerance of ± 10 percent around the stated numerical value. Furthermore, when reference is made to percentages herein, those percentages are intended to be by weight, ie, weight percentages. The expression “up to” includes amounts from zero to the stated upper limit and all values in between. When specifying a range, the range includes all values between them (eg, values that differ by 0.1 percent). Moreover, when the words "generally" and "substantially" are used in connection with a geometric shape, the accuracy of that geometric shape is not required, but the shape tolerances are within the scope of this disclosure. It is intended to be within. The tubular elements of the embodiments may be cylindrical, but other tubular cross-sectional configurations are also contemplated, such as square, rectangular, oval, triangular, and the like.

  As used herein, the term "vapor former" refers to any suitable material that promotes the formation of a vapor in use and is substantially resistant to pyrolysis at the operating temperature of the e-vaping device. A well-known compound or mixture of compounds is described. Suitable vapor formers may include various compositions of polyhydric alcohols such as propylene glycol and at least one of glycerin. In some exemplary embodiments, the vapor former is propylene glycol. In some exemplary embodiments, the vapor former is included in the solvent of the pre-vapor formulation.

E-Baping Apparatus FIG. 1 is a side view of an e-vaping apparatus 60 according to some exemplary embodiments. The e-vaping device 60 is disclosed in U.S. Patent Application Publication No. 2013/0192623 to Tucker et al., filed January 31, 2013, and U.S. Patent Application Publication No. It may include one or more of the features described in 2013/0192619, the entire contents of each of which are incorporated herein by reference. In FIG. 1, the e-vaping device 60 is connected by a threaded joint 74 or by other connection structures such as at least one of a slip fit, snap fit, detent, clamp and clasp, or the like. A first section (or cartridge) 70 and a second section (or power section) 72 are coupled to each other. In some exemplary embodiments, the cartridge 70 and the power section 72 may be configured to be reversibly coupled. In some exemplary embodiments, the first section or cartridge 70 may be a replaceable cartridge, and the power section 72 may be a reusable section. In some exemplary embodiments, the first section or cartridge 70 and the power section 72 may be integrally formed as one piece. In some exemplary embodiments, power section 72 includes a light emitting diode (LED) at distal end 28 thereof.

  FIG. 2 is a cross-sectional view of some exemplary embodiments of an e-vaping device. As shown in FIG. 2, the first section or cartridge 70 can house the outlet end insert 20, the capillary tube 18, and the reservoir 14.

  In some exemplary embodiments, reservoir 14 may include gauze wrapped around an inner tube (not shown). For example, the reservoir 14 may be formed (e.g., at least partially include, include, etc.) of outer wrapped gauze surrounding the inner wrapped gauze. In some exemplary embodiments, reservoir 14 may include alumina ceramic in the form of loose particles, loose fibers, or woven or nonwoven fibers. In some exemplary embodiments, reservoir 14 may include a cellulosic material, such as cotton or gauze material, or a polymeric material, such as polyethylene terephthalate, in bundle form of loose fibers. A more detailed description of the reservoir 14 is provided below.

  In some exemplary embodiments, reservoir 14 is configured to hold one or more pre-vapor formulations. As described further below, one or more pre-vapor formulations held in reservoir 14 may include solvent and solution compounds. As described further below, the solvent may include at least one of propylene glycol (PG) and glycerin (Gly). The solution compound can include at least one of a sugar compound, a salt solution, and a polyethylene glycol (PEG) compound.

  A pre-vapor formulation as described herein is a material or combination of materials that can be converted to a vapor. For example, a pre-vapor formulation may be a liquid, solid, or gel formulation, including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and combinations thereof. At least one of the following. Different pre-vapor formulations may include different components (eg, different compounds, substances, etc.). Different pre-vapor formulations may have different attributes. One or more of the pre-vapor formulations are disclosed in U.S. Patent Application Publication No. 2015/0020823, filed July 16, 2014, and U.S. Patent Application Publication No. 2015/0313275, the entire contents of each of which are incorporated herein by reference.

  Referring again to FIGS. 1 and 2, power supply section 72 may include power supply 12, control circuit 11 configured to control power supply 12, and sensor 16. Sensor 16 is configured to respond to air drawn into power section 72 through an air inlet port (not shown) adjacent the free end or tip (eg, distal end 28) of e-vaping device 60. obtain. In some exemplary embodiments, sensor 16 may be coupled to control circuit 11. Power supply 12 may include a rechargeable battery. Sensor 16 may be one or more of a pressure sensor, a microelectromechanical system (MEMS) sensor, and the like. The threaded portion of the power section 72 (eg, at least a portion of the screw fitting 74) connects to a battery charger when not connected to the first section or cartridge 70 to connect the battery or power source 12 contained within the power section 72. Can be charged.

  In some exemplary embodiments, the capillary 18 is formed from or includes a conductive material, such that the capillary 18 itself is configured as a heater by passing an electrical current through the capillary 18. Good (eg, may include a heater). Capillary tube 18 may be any conductive material that is capable of heating, eg, resistive heating, and that does not react with the pre-vapor formulation while maintaining the structural integrity at the operating temperatures experienced by capillary tube 18. Suitable materials for forming the capillary 18 are one or more of stainless steel, copper, copper alloys, porous ceramic materials coated with a film resistant material, nickel chrome alloys, and combinations thereof. For example, the capillary 18 is a stainless steel capillary 18 that functions as a heater via a wire 26 attached thereto for the passage of DC or AC current along the length of the capillary 18. Accordingly, the stainless steel capillary 18 is heated, for example, by resistance heating. In some exemplary embodiments, the capillary 18 may be a non-metallic tube, for example, a glass tube. In some embodiments, the capillaries 18 may also be positioned along a glass tube and a conductive material (eg, stainless steel, nichrome, or platinum wire) capable of being heated (eg, resistively heated). Etc.). As the conductive material disposed along the glass tube is heated, the pre-vapor formulation present in the capillary 18 is heated to a temperature sufficient to at least partially volatilize the pre-vapor formulation within the capillary 18.

  In some exemplary embodiments, electrical leads 26 are coupled to a metal portion of capillary 18. In some exemplary embodiments, one electrical lead 26 is coupled to a first upstream portion 101 of the capillary 18 and a second electrical lead 26 is coupled to a downstream end portion 102 of the capillary 18. Is done.

  In some exemplary embodiments, the sensor 16 detects a pressure gradient and the control circuit 11 controls the heating of the pre-vapor formulation located in the reservoir 14 by supplying power to the capillary 18. When the capillary 18 is heated, the pre-vapor formulation contained in the heated portion of the capillary 18 is volatilized and discharged from the outlet 63, where the pre-vapor formulation expands and mixes with air to form a vapor in the mixing chamber 240. Form.

  In some exemplary embodiments, sensor 16 is configured to generate an output indicative of the magnitude and direction of airflow within e-vaping device 60. The control circuit 11 receives the output of the sensor 16 and (1) blows out the direction of the airflow in fluid communication with the sensor 16 (eg, from the exterior of the e-vaping device 60 to the outlet end insert into the interior of the e-vaping device 60). The flow through the outlet end insert 20 (eg, the flow through the outlet end insert 20 from the interior of the e-vaping device 60 to the exterior of the e-vaping device 60), and (2) the drawer. It is determined whether the magnitude (eg, airflow velocity, flow rate, mass flow rate, some combination thereof, etc.) exceeds a threshold level. The direction of the air flow in fluid communication with the sensor 16 by the control circuit 11 indicates the draw at the outlet end insert 20 relative to the blowout, and the size of the drawer (eg, air flow speed, flow rate, mass flow rate, some of them). Is greater than the threshold level, the control circuit 11 connects the power supply 12 to a heater (eg, the heater 19 of FIG. 4, a stainless steel capillary 18 coupled to an electrical lead 26, etc.), thereby. The heater may be turned on (eg, supplying power to the heater). That is, the control circuit 11 may selectively electrically connect the electrical leads 26 in a closed circuit such that the heater is electrically connected to the power supply 12 and the power supply 12 supplies power to the heater (e.g., By activating the heater power control circuit included in the control circuit 11). In some exemplary embodiments, sensor 16 may indicate a pressure drop and control circuit 11 may activate a heater in response.

  In some exemplary embodiments, control circuit 11 may include a time limiter. In some exemplary embodiments, the control circuit 11 may include a manually operable switch for an adult electronic baping user to initiate baping. The time of current supply to the heater may be set or preset depending on the desired amount of pre-vapor formulation to be vaporized. In some exemplary embodiments, sensor 16 can detect a pressure drop and control circuit 11 can power the heater as long as the heater operating conditions are met. Such a condition is such that one or more sensors 16 detect a pressure drop that satisfies at least the magnitude of the threshold, and control circuit 11 determines that the direction of airflow in fluid communication with sensor 16 is at outlet end insert 20 to the outlet. Indicating a drawer and may include determining that the size of the drawer (eg, airflow velocity, flow rate, mass flow rate, some combination thereof, etc.) exceeds a threshold level.

  To control the supply of power from the power supply section 72 to the heaters of the e-vaping device 60, the control circuit 11 may execute one or more instances of computer-executable program code. The control circuit 11 may include a processor and a memory. The memory may be a computer readable storage medium for storing computer executable code.

  The control circuit 11 includes a processor, a central processing unit (CPU), a controller, an arithmetic logic unit (ALU), a signal processing device, a microcomputer, a field programmable gate array (FPGA), a system on a chip (SoC), a programmable logic unit, It may include processing circuitry, including but not limited to a processor, or any other device capable of executing and responding to instructions in a defined manner. In some exemplary embodiments, control circuit 11 may be at least one of an application specific integrated circuit (ASIC) and an ASIC chip.

  The control circuit 11 may be configured as a special-purpose machine that executes computer-executable program code stored in a storage device. The program code is at least one of a program or computer readable instructions, software components, software modules, data files, data structures, etc. that can be implemented by one or more hardware devices, such as one or more of the control circuits described above. May be included. Examples of program code include both machine code created by a compiler and high-level program code that is executed using an interpreter.

  The control circuit 11 may include one or more electronic storage devices. The one or more storage devices include at least one of a random access memory (RAM), a read only memory (ROM), a permanent mass storage device (such as a disk drive), a solid state (eg, NAND flash) device, and the like. It may be a tangible or non-transitory computer readable storage medium and any other similar data storage mechanism capable of storing and recording data. The one or more storage devices store computer programs, program code, instructions, or some combination thereof for one or more operating systems, for implementing the exemplary embodiments described herein, or both. It may be configured to save. The computer program, program code, instructions, or some combination thereof, may also be loaded from a separate computer-readable storage medium to one or more storage devices, one or more computer processing devices, or both, using a drive mechanism. May be done. Such independent computer readable storage media may include at least one of a USB flash drive, a memory stick, a Blu-ray / DVD / CD-ROM drive, a memory card, and other such computer readable storage media. The computer program, program code, instructions, or some combination thereof, may be transferred from a remote data storage device via a network interface over a local computer readable storage medium to one or more storage devices, one or more computer processing devices, or both. May be loaded. Moreover, the computer program, the program code, the instructions or some combination thereof, the remote computing configured to transmit, distribute, or transmit and distribute the computer program, program code, instructions or some combination thereof over a network. It may be loaded from the system into one or more storage devices, one or more processors, or both. The remote computing system transmits, distributes, or transmits a computer program, program code, instructions, or some combination thereof, over at least one of such as a wired interface, a wireless interface, and other media. May be distributed.

  The control circuit 11 may be a special purpose machine configured to execute computer executable code to control the supply of power to the heaters of the e-vaping device. In some exemplary embodiments, an instance of the computer-executable code, when executed by the control circuit 11, causes the control circuit 11 to control the power supply to the heater according to an operating sequence. Controlling the supply of power to the heater may be interchangeably referred to herein as activating the heater, activating one or more elements included in the heater, some combination thereof, and the like.

  As shown in FIG. 2, reservoir 14 includes a valve 40 configured to maintain the pre-vapor formulation within reservoir 14 and to be opened when reservoir 14 is squeezed and pressure is applied thereto. Pressure is created as the vapor aspirator sucks the e-vaping device with the outlet end insert 20, so that the reservoir 14 pushes the pre-vapor formulation through the outlet 62 of the reservoir 14 into the capillary 18. In some exemplary embodiments, the valve 40 opens when a certain pressure is reached, preventing inadvertent dispensing of the pre-vapor formulation from the reservoir 14. In some exemplary embodiments, the pressure associated with depressing the pressure switch 44 is sufficiently high that the pressure switch 44 is inadvertently depressed by an external factor, such as physical motion or the impact of an outside object. Accidental heating due to heat is avoided.

  The power supply 12 of some exemplary embodiments may include a battery located within the power section 72 of the e-vaping device 60. The power supply 12 may be configured to apply a voltage to volatilize the pre-vapor formulation contained in the reservoir 14.

  In some exemplary embodiments, the electrical connection between the capillary 18 and the electrical lead 26 is substantially conductive and temperature resistant, while the capillary 18 is substantially resistant. The heat is generated mainly along the capillary 18 and not at the contacts.

  Power supply (or battery) 12 may be rechargeable and may include circuitry configured to allow charging of the battery by an external charging device. In some exemplary embodiments, the circuit, when charged, provides a given amount of power for an instance of the vapor that is drawn through one or more outlets of the e-vaping device 60, such that the negative pressure is , Through one or more outlets 21, combinations thereof, etc., but the circuit may then have to be reconnected to an external charging device.

  In some exemplary embodiments, the e-vaping device 60 may include a control circuit 11 that may be mounted on a printed circuit board, for example. The control circuit 11 may also include a heater activation light 27 configured to emit light when the device is activated. The heater operation light 27 may include a light emitting diode (LED). In addition, the heater activation light 27 may be positioned so as to be visible to an adult vapor aspirator during vaporization. In addition, heater activation lights 27 can be used to diagnose the e-vaping system or to indicate the progress of recharging. The heater activation light 27 can also be configured such that an adult vapor aspirator can activate, deactivate, or activate and deactivate the heater activation light 27 for privacy. In some exemplary embodiments, heater activation light 27 may be located on a tip on e-vaping device 60. In some exemplary embodiments, heater activation light 27 may be located on a side portion of the outer housing of e-vaping device 60.

  In some exemplary embodiments, the e-vaping device 60 further includes an outlet end insert 20 having at least two off-axis branch outlets 21, wherein the branch outlets 21 are evenly distributed around the outlet end insert 20. Thus, during operation of the e-vaping device 60, the vapors are substantially uniformly distributed from the e-vaping device 60. In some exemplary embodiments, the outlet end insert 20 includes at least two branch outlets 21 (eg, 3-8 or more outlets). In some exemplary embodiments, the outlet 21 of the outlet end insert 20 is located at the end of the off-axis passage 23 and has an outward angle with respect to the longitudinal direction of the e-vaping device 60 (e.g., , Branched). The term "off-axis" as used herein means having an angle with respect to the longitudinal direction of the e-vaping device.

  In some exemplary embodiments, the e-vaping device 60 has a length of about 80 millimeters to about 110 millimeters, for example, a length of about 80 millimeters to about 100 millimeters and a diameter of about 7 millimeters to about 10 millimeters. You may.

  The outer cylindrical housing 22 of the e-vaping device 60 may be formed from or include any suitable material or combination of materials. In some exemplary embodiments, outer cylindrical housing 22 is at least partially formed of metal and is part of an electrical circuit that connects control circuit 11, power supply 12, and sensor 16.

  As shown in FIG. 2, the e-vaping device 60 can also include an intermediate section (third section) 73 that can accommodate the reservoir 14 and the capillary 18. Intermediate section 73 may be configured to mate with threaded joint 74 ′ at the upstream end of first section or cartridge 70 and threaded joint 74 at the downstream end of power supply section 72. In some exemplary embodiments, the first section or cartridge 70 houses the outlet end insert 20, while the second section 72 includes the power supply 12 and a control circuit configured to control the power supply 12. 11 is accommodated.

  FIG. 3 is a cross-sectional view of an e-vaping device according to some exemplary embodiments. In some exemplary embodiments, the first section or cartridge 70 is replaceable so as to avoid the need to clean the capillary 18. In some exemplary embodiments, the first section or cartridge 70 and the second section 72 may be integrally formed without a threaded connection to form a disposable e-vaping device.

  As shown in FIG. 3, in some exemplary embodiments, valve 40 can be a two-way valve and reservoir 14 can be pressurized. For example, the storage unit 14 can be pressurized by using a pressing mechanism 405 configured to apply a constant pressure to the storage unit 14. Therefore, the release of the vapor formed by heating the pre-vapor preparation contained in the storage part 14 is promoted. When the pressure on reservoir 14 is relieved, valve 40 closes and heated capillary 18 drains any pre-vapor formulation remaining downstream of valve 40.

  FIG. 4 is a longitudinal cross-sectional view of an e-vaping device according to some exemplary embodiments. In some exemplary embodiments, including the exemplary embodiment illustrated in FIG. 4, the e-vaping device 60 may include a central air passage 24 in the upstream seal 15. The central air passage 24 opens into a central passage 68 defined at least in part by the inner surface of the inner tube 65. Further, e-vaping device 60 may include storage 14 configured to store a pre-vapor formulation. The reservoir 14 includes a pre-vapor formulation and optionally a storage medium 25 (such as a gauze configured to store the pre-vapor formulation therein). In some exemplary embodiments, reservoir 14 is housed in an outer annulus between outer tube 6 and inner tube 65. The annulus is sealed at its upstream end by a seal 15 and at its downstream end by a stopper 10 to prevent leakage of the pre-vapor formulation from the reservoir 14. The heater 19 at least partially surrounds the central portion of the wick 220 such that when the heater is activated, the pre-vapor formulation present in the central portion of the wick 220 is vaporized to form a vapor. The heater 19 includes two spaced electrical sources such that the power supply 12 is configured to supply power to the heater 19 to cause the heater 19 to vaporize at least a portion of the pre-vapor formulation withdrawn from the reservoir 14 into the wick 220. The power supply 12 is connected by a lead wire 26. The e-vaping device 60 further includes an outlet end insert 20 having at least two outlets 21. The outlet end insert 20 is in fluid communication with the central air passage 24 via a central passage 64 extending through the interior of the inner tube 65 (eg, the central channel 68) and the stopper 10.

  The e-vaping device 60 may include an airflow diverter with an impermeable plug 30 at the downstream end 82 of the central air passage 24 in the seal 15. In some exemplary embodiments, central air passage 24 is a central passage extending axially within seal 15, which seals the upstream end of the annulus between outer tube 6 and inner tube 65. The radial air channel 32 directs air outward from the central passage 24 toward an inner tube 68 at least partially defined by the inner tube 65. In operation, when an adult vapor aspirator draws on the e-vaping device to create a negative pressure, the sensor 16 causes the adult vapor aspirator to suck the outlet end insert of the e-vaping device, thereby creating a negative pressure. The control circuit 11 controls the heating of the pre-vapor formulation located in the reservoir 14 by providing a force (eg, supplying power) to the heater 19 as a result of detecting the pressure gradient.

Pre-Vapor Formulations As described above, in some exemplary embodiments, the reservoir 14 of the cartridge 70 may be included within the e-vaping device 60, but may hold one or more pre-vaper formulations. Be composed.

  A pre-vapor formulation as described herein is a material or combination of materials that can be converted to a vapor. For example, a pre-vapor formulation may be a liquid, solid, or gel formulation, including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, and combinations thereof. At least one of the following. Different pre-vapor formulations may include different components (eg, different compounds, substances, etc.). Different pre-vapor formulations may have different attributes. For example, different pre-vapor formulations may have different viscosities when the different pre-vapor formulations are at a common temperature. One or more of the pre-vapor formulations are disclosed in U.S. Patent Application Publication No. 2015/0020823, filed July 16, 2014, and U.S. Patent Application Publication No. 2015/0313275, the entire contents of each of which are incorporated herein by reference.

  Pre-vapor formulations may include solvent and solution compounds. In some exemplary embodiments, the solvent may be referred to as a vapor former. The solvent included in the pre-vapor formulation may include propylene glycol (PG), glycerin (Gly), water, combinations thereof, and the like.

  In some exemplary embodiments, the pre-vapor formulation includes at least one solution compound in addition to the solvent. The solution compound included in the pre-vapor formulation may include at least one of a sugar compound, a salt solution, and a polyethylene glycol (PEG) compound.

  In some exemplary embodiments, the solution compound may include a sugar compound. The saccharide compound can be, for example, at least one of a monosaccharide compound, a disaccharide compound, and a trisaccharide compound. When the solution compound comprises a monosaccharide compound, the monosaccharide compound can include, for example, at least one of the saccharide compounds, including gluconic acid, but exemplary embodiments are not so limited. Where the solution compound comprises a disaccharide compound, the disaccharide compound may comprise at least one, for example, trehalose, but exemplary embodiments are not so limited. Where the solution compound comprises a trisaccharide compound, the trisaccharide compound may include at least one, for example, raffinose, but exemplary embodiments are not so limited. When the solution compound includes a polyol compound, the polyol compound may include, for example, at least one of mannitol, erythritol, xylitol, and sorbitol.

  In some exemplary embodiments, when the solution compound comprises a sugar compound, the sugar compound is included in the pre-vapor formulation at a concentration greater than about 0 molar and up to about 2.5 molar. Can be

  In some exemplary embodiments, when the solution compound comprises a polyol compound, the polyol compound is present in the pre-vapor formulation at a concentration of about 0.2 weight percent or more and about 10 weight percent or less, based on the weight of the pre-vapor formulation. May be included. In some exemplary embodiments, when the solution compound comprises a polyol compound, the polyol compound is present in the pre-vapor formulation at a concentration of about 0.2 weight percent or more and about 2 weight percent or less based on the weight of the pre-vapor formulation. May be included. In some exemplary embodiments, when the solution compound comprises a polyol compound, the polyol compound is included in the pre-vapor formulation at a concentration of about 2 weight percent or more and about 5 weight percent or less based on the weight of the pre-vapor formulation. obtain. In some exemplary embodiments, when the solution compound comprises a polyol compound, the polyol compound is included in the pre-vapor formulation at a concentration of about 5 weight percent or more and about 8 weight percent or less, based on the weight of the pre-vapor formulation. obtain. In some exemplary embodiments, when the solution compound comprises a polyol compound, the polyol compound is included in the pre-vapor formulation at a concentration of about 8 weight percent or more and about 10 weight percent or less based on the weight of the pre-vapor formulation. obtain.

  In some exemplary embodiments, the solution compound may include a salt solution. The salt solution can include, for example, at least one of sodium chloride, sodium citrate, sodium tartrate, sodium succinate, sodium sulfate, calcium chloride, magnesium chloride, magnesium sulfate, magnesium sulfate, and potassium sulfate.

  If the solution compound comprises a salt solution, the salt solution may be included in the pre-vapor formulation at a concentration of greater than about 0 percent and up to about 10 weight percent based on the weight of the pre-vapor formulation.

  In some exemplary embodiments, the solution compound may include a polyethylene glycol compound. The polyethylene glycol (PEG) compound can include, for example, at least one of PEG200, PEG300, and PEG400.

  If the solution compound comprises a polyethylene glycol compound, the polyethylene glycol compound may be included in the pre-vapor formulation at a concentration of greater than about 0 weight percent and up to about 50 weight percent based on the weight of the pre-vapor formulation.

  In some exemplary embodiments, the solution compound may include at least one of nicotine, one or more flavoring agents, one or more organic acids (eg, organic acid compounds), water, and the like.

  In some exemplary embodiments, a solution compound is a cartridge that can contact one or more components of a pre-vapor formulation, increasing the stability of one or more various additional components included in the pre-vapor formulation. A pre-vaper formulation that substantially reduces or prevents oxidation of one or more solid portions of the e-vaping device 60, such as to prevent the transfer of free radicals, including hydroxyl radicals, to the vapor generated by the e-vaping device 60. Adjusting the tension (eg, relative concentrations of solutes contained in the pre-vapor formulation with respect to one or more fluids), adjusting the osmotic pressure of the pre-vapor formulation, adjusting the osmotic pressure in the pre-vapor formulation, combinations thereof, and the like. Can be performed. In some exemplary embodiments, the solution compound can adjust the osmotic pressure of the pre-vapor formulation to between about 200 milliosmol / liter and about 500 milliosmol / liter. In some exemplary embodiments, the solution compound can adjust the osmotic pressure of the pre-vapor formulation to between about 280 milliosmol / liter and about 300 milliosmol / liter. In some exemplary embodiments, the solution compound can adjust the osmotic pressure of the pre-vapor formulation to between about 290 milliosmol / liter and about 310 milliosmol / liter. In some exemplary embodiments, the solution compound can adjust the osmotic pressure of the pre-vapor formulation to between about 200 mOsmol / kg to about 500 mOsmol / kg. In some exemplary embodiments, the solution compound may adjust the osmotic pressure of the pre-vapor formulation to between about 280 mOsmol / kg to about 300 mOsmol / kg. In some exemplary embodiments, the solution compound can adjust the osmotic pressure of the pre-vapor formulation to between about 290 milliosmoles / kilogram to about 310 milliosmoles / kilogram. The one or more fluids may be, in some exemplary embodiments, about 200 milliosmoles / liter such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation with respect to the one or more fluids. Fluids having an osmotic pressure between about -500 mOsmol / liter, about 200 mOsm / kilogram to about 500 mOsm / kilogram, or both can be included. The one or more fluids may, in some exemplary embodiments, be about 280 milliosmol / liter such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation with respect to the one or more fluids. Fluids having an osmotic pressure between about -300 mOsmol / liter, about 280 mOsm / kilogram to about 300 mOsm / kilogram, or both can be included. The one or more fluids may be, in some exemplary embodiments, about 290 milliosmoles / liter such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation with respect to the one or more fluids. Fluids having an osmotic pressure of between about -310 mOsmol / liter, about 290 mOsm / kg, and about 310 mOsm / kg, or both, may be included.

  In some exemplary embodiments, the solution compound included in the pre-vapor formulation may be soluble in at least one of glycerin, propylene glycol or water, and the stability of the various components included in the pre-vapor formulation May be added in an effective amount to increase the

In some exemplary embodiments, the oxidation of the elements of the pre-vapor formulation is reduced to oxygen formed from oxygen in the presence of a redox-active transition metal or to a hydroxyl radical generated from aqueous hydrogen peroxide (H ₂ O ₂ ). One or more components of such pre-vapor preparations may be due to the addition or addition of a solution compound configured to scavenge or neutralize the hydroxy radicals in the pre-vapor preparations, as these may reduce or substantially prevent the presence of hydroxy radicals. Oxidation is reduced and the stability of the components present in the pre-vapor formulation is increased.

  In some exemplary embodiments, a pre-vapor formulation can include, in addition to one or more solution compounds, one or more chelating agents, one or more ion exchange agents, combinations thereof, and the like. The presence of chelators and ion exchangers may bind oxygen with free transition metals of all redox activity, thus limiting the formation of free radicals, including hydroxyl radicals. During operation of the e-vaping device 60, one or more solution compounds present in the pre-vapor formulation may react with most or a majority of any remaining free radicals, such as hydroxyl radicals. For example, ion exchange agents may include soluble polyelectrolyte polymers having functional groups such as carboxylic acid groups, sulfonic acid groups such as sulfonated polystyrene, quaternary amino groups such as trimethylammonium, and other amino groups. As a result of the combined action of the chelating agent and the ion exchange agent, free radicals such as OH radicals, or free radicals formed by pre-vaper formulation components that react with OH radicals, generate vapor generated during operation of the e-vaping device. Movement into the can be substantially prevented.

  During operation of the e-vaping device 60, the acid is formed such that heating the pre-vapor formulation with a heater in the e-vaping device cartridge can produce a vapor having a large amount of protonated nicotine and a small amount of unprotonated nicotine. The molecular nicotine in the pre-vapor formulation is protonated, so that only a small part of all the vaporized (vaporized) nicotine remains in the vapor phase of the vapor. For example, a pre-vapor formulation may contain up to 5 percent nicotine, but the proportion of nicotine in the vapor phase of the vapor may be substantially less than 1 percent of the total nicotine delivered.

  In some exemplary embodiments, the solution compound is soluble in the pre-vapor formulation. For example, one or more solution compounds may be soluble in a solvent that includes at least one of water, propylene glycol, and glycerin.

  In some exemplary embodiments, one or more acids present in the pre-vapor formulation may be configured to migrate to a vapor generated based on heating of the pre-vapor formulation. Acid transfer efficiency is the ratio of the mass fraction of acid in the vapor to the mass fraction of acid in the pre-vapor formulation. In some exemplary embodiments, the acid or combination of acids present in the pre-vapor formulation may have an evaporation efficiency of about 50 percent or more, for example, about 60 percent or more. For example, a pre-vapor formulation may include one or more of pyruvate, tartaric acid, and acetic acid, each having an evaporation efficiency of about 50 percent or more.

  In some exemplary embodiments, the one or more acids present in the pre-vapor formulation will reduce the amount of the nicotine gas-phase portion to the nicotine gas-phase produced by an equivalent pre-vapor formulation without one or more acids. An amount sufficient to reduce the level of the portion by about 30 weight percent or more, or from about 60 weight percent to about 70 weight percent, or about 70 weight percent or more, or about 85 weight percent or more.

  According to some exemplary embodiments, the one or more acids present in the pre-vapor formulation include pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid. Lactic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-dimethyl-6-octenoic acid, 1-glutamic acid, Heptanoic acid, hexanoic acid, 3-hexanoic acid, trans-2-hexanoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenyl Mention may be made of one or more of acetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid, sulfuric acid, and combinations thereof.

  In some exemplary embodiments, the solvent of the pre-vapor formulation may also include a vapor former. In some exemplary embodiments, the vapor former may be glycerin. In some exemplary embodiments, the vapor former is from about 40 weight percent based on the weight of the pre-vapor formulation to about 90 weight percent based on the weight of the pre-vapor formulation (eg, from about 50 percent to about 80 percent, about 55 percent). -About 75 percent, or about 60 percent to about 70 percent). In some exemplary embodiments, the pre-vapor formulation may include propylene glycol and glycerin in a ratio of about 3: 2. In some exemplary embodiments, the ratio of propylene glycol and glycerin may be substantially 2: 3 and 3: 7.

  The pre-vapor formulation may include water. Water may be present in an amount ranging from about 5 weight percent based on the weight of the pre-vapor formulation to about 40 weight percent based on the weight of the pre-vapor formulation, or about 10 weight percent based on the weight of the pre-vapor formulation to about 15 weight percent based on the weight of the pre-vapor formulation. It may be included in amounts ranging from weight percent.

  One or more acids present in the pre-vapor formulation may have a boiling point of at least about 100 degrees Celsius. For example, one or more acids may be about 100 degrees Celsius to about 300 degrees Celsius, or about 150 degrees Celsius to about 250 degrees Celsius (eg, about 160 degrees Celsius to about 240 degrees Celsius, about 170 degrees Celsius to about 230 degrees Celsius). Degrees, about 180 degrees Celsius to about 220 degrees Celsius, or about 190 degrees Celsius to about 210 degrees Celsius). By generating an acid having a boiling point within the above range, the acid may volatilize when heated by the heater element of the e-vaping device. In some exemplary embodiments, in one embodiment utilizing a heater coil and a wick, the heater coil may reach an operating temperature of approximately 300 degrees Celsius.

  The total content of one or more acids present in the pre-vapor formulation may range from about 0.1 weight percent to about 6 weight percent, or from about 0.1 weight percent to about 2 weight percent, based on the weight of the pre-vapor formulation. It may be a range. The pre-vapor formulation may also contain up to 3% to 5% by weight of nicotine. In some exemplary embodiments, the pre-vapor formulation has a total acid content of less than about 3 weight percent. In some exemplary embodiments, the pre-vapor formulation has a total acid content of less than about 0.5 weight percent. The pre-vapor formulation may also contain about 4.5 to 5 weight percent nicotine. When at least one of tartaric acid, pyruvic acid, acetic acid is present, the total acid content of the pre-vapor formulation is from about 0.05 weight percent to about 2 weight percent, or from about 0.1 weight percent to about 1 weight percent. There may be.

  The pre-vapor formulation may also include a flavorant in an amount of from about 0.01 weight percent to about 15 weight percent (eg, from about 1 percent to about 12 percent, from about 2 percent to about 10 percent, or from about 5 percent to about 8 percent by weight based on the weight of the pre-vapor formulation. Percent). Flavors can be natural or artificial flavors. In some exemplary embodiments, the flavoring agent is one of tobacco flavor, menthol, wintergreen, peppermint, herbal flavor, fruit flavor, nut flavor, liquor flavor, and combinations thereof.

  In some exemplary embodiments, nicotine is present in an amount from about 2 weight percent to about 6 weight percent (eg, from about 2 percent to about 3 percent, from about 2 percent to about 4 percent, from about 2 percent to ("Nicotine content") in amounts ranging from about 5 percent). In some exemplary embodiments, nicotine is added in an amount up to about 5 weight percent based on the weight of the pre-vapor formulation. In some exemplary embodiments, the nicotine content of the pre-vapor formulation is about 2 weight percent or more based on the weight of the pre-vapor formulation. In some exemplary embodiments, the nicotine content of the pre-vapor formulation is about 2.5 weight percent or more based on the weight of the pre-vapor formulation. In some exemplary embodiments, the nicotine content of the pre-vapor formulation is about 3 weight percent or more based on the weight of the pre-vapor formulation. In some exemplary embodiments, the nicotine content of the pre-vapor formulation is at least about 4 weight percent based on the weight of the pre-vapor formulation. In some exemplary embodiments, the nicotine content of the pre-vapor formulation is at least about 4.5 weight percent based on the weight of the pre-vapor formulation.

  In some exemplary embodiments, the concentration of nicotine in the vapor phase of the pre-vapor formulation is substantially no more than 1 weight percent based on the weight of the pre-vapor formulation. In some exemplary exemplary embodiments, the one or more acids include pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, octanoic acid, lactic acid, sorbic acid , Malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, decanoic acid, 3,7-dimethyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid , 3-hexanoic acid, trans-2-hexanoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenylpropyl At least one of on-acid, hydrochloric acid, phosphoric acid, and sulfuric acid is used.

  While a number of exemplary embodiments have been disclosed herein, it should be understood that other variations may be possible. Such variations are not deemed to depart from the scope of the present disclosure, and all such modifications that would be apparent to one skilled in the art are intended to be included within the scope of the following claims.

Claims (38)

A pre-vapor formulation for an e-vaping device,
A solvent comprising at least one of propylene glycol and glycerin,
A solution compound,
Sugar compounds,
A salt solution, and
A solution compound, which is at least one of a polyethylene glycol compound. The solution compound is a sugar compound,
The pre-vapor preparation according to claim 1, wherein the concentration of the sugar compound in the pre-vapor preparation is more than 0 mol and not more than 2.5 mol. The sugar compound is
Monosaccharide compounds,
Disaccharide compounds,
Trisaccharide compounds, and
The prevapor preparation according to claim 2, comprising at least one of a polyol compound. The sugar compound is a polyol compound,
The polyol compound,
Mannitol,
Erythritol,
Xylitol, and
The pre-vapor formulation of claim 2, comprising at least one of sorbitol.   5. The pre-vapor formulation of claim 4, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation.   6. The pre-vapor formulation of claim 5, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 5 weight percent based on the weight of the pre-vapor formulation.   6. The pre-vapor formulation of claim 5, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 5 weight percent and less than or equal to about 8 weight percent based on the weight of the pre-vapor formulation.   6. The pre-vapor formulation of claim 5, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 8 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a salt solution,
The salt solution,
Sodium chloride,
Sodium citrate,
Sodium tartrate,
Sodium succinate,
Sodium sulfate,
Calcium chloride,
Magnesium chloride,
Magnesium sulfate, and
The pre-vapor preparation according to any one of claims 1 to 8, comprising at least one of potassium sulfate.   10. The pre-vapor formulation of claim 9, wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 weight percent and no more than 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a polyethylene glycol (PEG) compound;
The polyethylene glycol (PEG) compound,
PEG200,
PEG 300, and
The pre-vapor formulation according to any of claims 1 to 10, comprising at least one of PEG400.   12. The pre-vapor formulation according to claim 11, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is about 0 weight percent or more and about 50 weight percent or less based on the weight of the pre-vapor formulation. a cartridge for an e-vaping device,
A reservoir for holding a pre-vapor preparation,
A heater configured to heat the pre-vapor formulation,
The pre-vapor preparation,
A solvent comprising at least one of propylene glycol and glycerin,
A solution compound,
Sugar compounds,
A salt solution, and
A solution compound, which is at least one of a polyethylene glycol compound. The solution compound is a sugar compound,
14. The pre-vapor preparation according to claim 13, wherein the concentration of the sugar compound in the pre-vapor preparation is more than 0 mol and not more than 2.5 mol. The sugar compound is
Monosaccharide compounds,
Disaccharide compounds,
Trisaccharide compounds, and
The cartridge according to claim 14, comprising at least one of a polyol compound. The sugar compound is a polyol compound,
The polyol compound,
Mannitol,
Erythritol,
Xylitol, and
15. The cartridge of claim 14, comprising at least one of sorbitol.   17. The cartridge of claim 16, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation.   18. The cartridge of claim 17, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 5 weight percent based on the weight of the pre-vapor formulation.   18. The cartridge of claim 17, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 5 weight percent and less than or equal to about 8 weight percent based on the weight of the pre-vapor formulation.   18. The cartridge of claim 17, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 8 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a salt solution,
The salt solution,
Sodium chloride,
Sodium citrate,
Sodium tartrate,
Sodium succinate,
Sodium sulfate,
Calcium chloride,
Magnesium chloride,
Magnesium sulfate, and
The cartridge according to any one of claims 13 to 20, comprising at least one of potassium sulfate.   22. The cartridge of claim 21, wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 weight percent and no more than 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a polyethylene glycol (PEG) compound;
The polyethylene glycol (PEG) compound,
PEG200,
PEG300, and
23. The cartridge according to any of claims 13 to 22, comprising at least one of PEG400.   24. The cartridge of claim 23, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is greater than or equal to about 0 weight percent and less than or equal to about 50 weight percent based on the weight of the pre-vapor formulation. A cartridge comprising a reservoir for holding a pre-vapor formulation, and a heater configured to heat the vapor formulation; and
A power section coupled to the cartridge, the power section configured to supply power to the heater;
The pre-vapor preparation,
A solvent comprising at least one of propylene glycol and glycerin,
A solution compound,
Sugar compounds,
A salt solution, and
An e-vaping device comprising: a solution compound that is at least one of a polyethylene glycol compound. The solution compound is a sugar compound,
26. The e-vaping device of claim 25, wherein the concentration of the sugar compound in the pre-vapor formulation is greater than 0 molar and no greater than 2.5 molar. The sugar compound is
Monosaccharide compounds,
Disaccharide compounds,
Trisaccharide compounds, and
27. The e-vaping device of claim 26, comprising at least one of a polyol compound. The sugar compound is a polyol compound,
The polyol compound,
Mannitol,
Erythritol,
Xylitol, and
27. The e-vaping device of claim 26, comprising at least one of sorbitol.   29. The e-vaping device of claim 28, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation.   30. The e-vaping device of claim 29, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 0.2 weight percent and less than or equal to about 5 weight percent based on the weight of the pre-vapor formulation.   30. The e-vaping device of claim 29, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 5 weight percent and less than or equal to about 8 weight percent based on the weight of the pre-vapor formulation.   30. The e-vaping device of claim 29, wherein the concentration of the polyol compound in the pre-vapor formulation is greater than or equal to about 8 weight percent and less than or equal to about 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a salt solution,
The salt solution,
Sodium chloride,
Sodium citrate,
Sodium tartrate,
Sodium succinate,
Sodium sulfate,
Calcium chloride,
Magnesium chloride,
Magnesium sulfate, and
33. The e-vaping device according to any of claims 25 to 32, comprising at least one of potassium sulfate.   34. The e-vaping device of claim 33, wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 weight percent and no more than 10 weight percent based on the weight of the pre-vapor formulation. The solution compound is a polyethylene glycol (PEG) compound;
The polyethylene glycol (PEG) compound,
PEG200,
PEG300, and
An e-vaping device according to any of claims 25 to 34, comprising at least one of PEG 400.   36. The e-vaping device of claim 35, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is greater than or equal to about 0 weight percent and less than or equal to about 50 weight percent based on the weight of the pre-vapor formulation.   37. The e-vaping device of any of claims 25 to 36, wherein the power section includes a rechargeable battery.   An e-vaping device according to any of claims 25 to 37, wherein the cartridge and the power supply section are detachably coupled to each other.

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