CN110167365B - Method and system for improving stability of pre-vapor formulation of electronic vapor smoking device - Google Patents
Method and system for improving stability of pre-vapor formulation of electronic vapor smoking device Download PDFInfo
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- CN110167365B CN110167365B CN201880006151.4A CN201880006151A CN110167365B CN 110167365 B CN110167365 B CN 110167365B CN 201880006151 A CN201880006151 A CN 201880006151A CN 110167365 B CN110167365 B CN 110167365B
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
- A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
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Abstract
A pre-vapor formulation that may be included in an e-vaping device (60) may include a solvent and a solution compound. The solvent may comprise one or more of propylene glycol and glycerol. The solution compound may include one of a sugar compound, a salt compound, and a polyethylene compound. The concentration of the solution compound may be between about 0.2% and about 10%.
Description
Technical Field
Some example embodiments relate to a pre-vapor formulation for an e-vaping device.
Background
An E-vaping device (EVD), also referred to herein as an Electronic Vaping Device (EVD), may vaporize a pre-vapor formulation that may be drawn through one or more outlets of the E-vaping device. An e-vaping device may generally include several e-vaping elements, including a power supply section and a canister. The power supply section may include a source of electrical power, such as a battery, and the cartridge may include a heater and a reservoir capable of containing the pre-vapor formulation material. The cartridge typically includes a heater in fluid communication with the pre-vapor formulation via a dispensing port (e.g., wick) that is configured to heat the pre-vapor formulation to generate a vapor.
The pre-vapor formulation typically comprises a material or combination of materials that can be converted to a vapor. For example, the pre-vapor formulation may comprise at least one of a liquid, solid, or gel formulation, including but not limited to water, beads, solvents, actives, alcohols, plant extracts, natural flavors, artificial flavors, and combinations thereof. The solvent may comprise at least one of glycerol and propylene glycol.
In some cases, a component of the pre-vapor formulation in the pre-vapor formulation container may react with other components, with other elementsReacted, or reacted with a solid metal part of the pre-vapor formulation container or cartridge. For example, particularly when "dry pumping" occurs, i.e., when the wick of an e-vaping device is not sufficiently supplied with the pre-vapor formulation before an adult vaping user begins to smoke, if the cartridge is empty, or if the coil of the heater overheats during operation of the e-vaping device, components of the pre-vapor formulation may react with the metal (e.g., copper or iron) of the solid portion of the e-vaping device in the presence of oxygen and generate free radicals, such as hydroxyl radicals. In particular, metal ions, e.g. copper ions Cu 2+ It can be reacted with oxygen or hydrogen peroxide. In some example embodiments, the radicals may be generated via oxidation of a metal portion of the cartridge or pre-vapor formulation container. Oxidation of the pre-vapor formulation components, cartridges, or containers typically depends on the presence of oxygen and redox active transition metals, which generate oxygen species, such as hydroxyl radicals. The redox active transition metal may be from a metal portion of the cartridge or container, or may be included in other elements added to the pre-vapor formulation, such as nicotine, water, vapor formers such as at least one of glycerin and propylene glycol, acids, flavors, fragrances, and combinations thereof.
Thus, once generated, free radicals (e.g., hydroxyl radicals) may react with the components of the pre-vapor formulation, resulting in reduced stability of the pre-vapor formulation. The free radicals may also be mixed with the vapor generated by the e-vaping device.
Disclosure of Invention
Some example embodiments relate to a pre-vapor formulation for an e-vaping device.
According to some example embodiments, a pre-vapor formulation of an e-vaping device may include a solvent including at least one of propylene glycol and glycerin, and a solution compound. The solution compound may 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 equal to or less than 2.5 molar.
The sugar 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 may be equal to or greater than about 0.2% and may be equal to or less than about 10 wt% based on the weight of the pre-vapor formulation.
The concentration of the polyol compound in the pre-vapor formulation may be equal to or greater than about 0.2% and may be equal to or less than about 5 wt% based on the weight of the pre-vapor formulation.
The concentration of the polyol compound in the pre-vapor formulation may be equal to or greater than about 5% and may be equal to or less than about 8% by weight based on the weight of the pre-vapor formulation.
The concentration of the polyol compound in the pre-vapor formulation may be equal to or greater than about 8% and may be equal to or less than about 10% by weight based on the weight of the pre-vapor formulation.
When the solution compound is a salt solution, the salt solution may comprise at least one of sodium chloride, sodium citrate, sodium tartrate, sodium succinate, sodium sulfate, calcium chloride, magnesium sulfate, and potassium sulfate.
The concentration of the salt solution in the pre-vapor formulation may be greater than 0% and may be equal to or less than about 10 wt% 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 PEG 200, PEG 300, and PEG 400.
The concentration of the polyethylene glycol compound in the pre-vapor formulation may be greater than about 0%, and may be equal to or less than about 50% by weight based on the weight of the pre-vapor formulation.
According to some example embodiments, a cartridge of an e-vaping device may include: a reservoir containing the pre-vapor formulation; and a heater configured to heat the pre-vapor formulation.
According to some example embodiments, an e-vaping device may include the foregoing cartridge 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 supply section may include a rechargeable battery.
The cartridge and the power supply section may be removably coupled together.
Drawings
The above and other features and advantages of example embodiments will become more apparent by describing in detail example embodiments with reference to the attached drawings. The drawings are intended to depict example embodiments and should not be construed as limiting the intended scope of the claims. The drawings are not to be considered as drawn to scale unless explicitly indicated.
FIG. 1 is a side view of an e-vaping device according to some example embodiments;
figure 2 is a longitudinal cross-sectional view of an e-vaping device, according to some example embodiments;
FIG. 3 is a longitudinal cross-sectional view of an e-vaping device according to some example embodiments; and is
Figure 4 is a longitudinal cross-sectional view of an e-vaping device, according to some example embodiments.
Detailed Description
Some detailed example embodiments are disclosed herein. However, specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments. Some example embodiments may be embodied in many alternate forms and should not be construed as limited to only example embodiments set forth herein.
Accordingly, while some example embodiments are capable of various modifications and alternative forms, example embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but on the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of example embodiments. Like numbers refer to like elements throughout the description of the figures.
It will be understood that when an element or layer is referred to as being "on," "connected to," "coupled to," or "covering" another element or layer, it can be directly on, coupled to, connected to, or covering the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. Like numbers refer to like elements throughout the specification.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, regions, layers or sections, these elements, regions, layers or sections 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. Thus, a first element, region, layer or section discussed below could be termed a second element, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms (e.g., "under," "below," "lower," "above," "upper," etc.) may be used herein to describe one element or feature's relationship to another element or feature as illustrated for ease of description. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, or elements, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.
Some example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the example embodiments. Thus, it is contemplated that the shapes of the illustrations will vary, for example, due to manufacturing techniques or tolerances. Thus, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of example embodiments.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, including those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
When the term "about" or "substantially" is used in this specification in connection with a numerical value, the stated relative numerical value is intended to include a tolerance of about ± 10% of the stated numerical value. Further, when percentages are referred to in this specification, those percentages are intended to be on a weight basis, i.e., weight percentages. The expression "up to" includes amounts from zero to the stated upper limit and all values in between. When ranges are specified, the ranges include all values therebetween, e.g., increments of 0.1%. Further, when the words "substantially" and "substantially" are used in combination with a geometric shape, it is intended that the precision of the geometric shape not be required, but that the bounds of the shape are within the scope of the invention. Although the tubular elements of the embodiments may be cylindrical, other tubular cross-sectional shapes are contemplated, such as square, rectangular, oval, triangular, and the like.
As used herein, the term "vapor former" describes any suitable known compound or mixture of compounds that, in use, promotes vapor formation and substantially resists thermal degradation at the operating temperature of an e-vaping device. Suitable vapor formers can include various combinations of polyols, such as at least one of propylene glycol and glycerin. In some example embodiments, the vapor former is propylene glycol. In some example embodiments, the vapor former is included in a solvent of the pre-vapor formulation.
Electronic steam smoke device
Fig. 1 is a side view of an e-vaping device 60 according to some example embodiments. The e-vaping device 60 may include one or more of the features set forth in U.S. patent application publication No. 2013/0192623 to Tucker et al, filed on 31.1.2013, and U.S. patent application publication No. 2013/0192619 to Tucker et al, filed on 14.1.2013, each of which is incorporated herein in its entirety by reference thereto. In fig. 1, the e-vaping device 60 includes a first section (or cartridge) 70 and a second section (or power supply section) 72 that are coupled together at a threaded joint 74 or by other connection structure such as at least one of a slip fit, snap fit, stop, clamp, snap, etc. In some example embodiments, the cartridge 70 and the power supply section 72 may be configured to be reversibly coupled together. In some example embodiments, the first section or cartridge 70 may be a replaceable cartridge and the power supply section 72 may be a reusable section. In some example embodiments, the first section or barrel 70 and the power supply section 72 may be integrally formed in one unitary piece. In some example embodiments, the power supply section 72 includes a Light Emitting Diode (LED) at its distal end 28.
Fig. 2 is a cross-sectional view of some example embodiments of an e-vaping device. As shown in fig. 2, the first section or cartridge 70 may house the outlet end insert 20, the capillary tube 18, and the reservoir 14.
In some example embodiments, reservoir 14 may contain a wrap of gauze surrounding an inner tube (not shown). For example, the reservoir 14 may be formed by (e.g., at least partially include, contain, etc.) a gauze outer package surrounding a gauze inner package. In some example embodiments, reservoir 14 may comprise alumina ceramic in the form of loose particles, loose fibers, or woven or non-woven fibers. In some example embodiments, reservoir 14 comprises a cellulosic material, such as cotton or gauze material, or a polymeric material, such as polyethylene terephthalate, in the form of a bundle of loose fibers. A more detailed description of reservoir 14 is provided below.
In some example embodiments, reservoir 14 is configured to hold one or more pre-vapor formulations. As described further below, the one or more pre-vapor formulations housed within reservoir 14 may include a solvent and a solution compound. As described further below, the solvent may comprise at least one of Propylene Glycol (PG) and glycerol (Gly). The solution compound may include at least one of a sugar compound, a salt solution, and a polyethylene glycol (PEG) compound.
As described herein, a pre-vapor formulation is a material or combination of materials that can be converted to a vapor. For example, the pre-vapor formulation may be at least one of a liquid, solid, or gel formulation, including but not limited to water, beads, solvents, actives, ethanol, plant extracts, natural or artificial flavors, and combinations thereof. Different pre-evaporation formulations may include different elements (e.g., different compounds, substances, etc.). Different pre-vapor formulations may have different properties. One or more pre-vapor formulations may include the pre-vapor formulation described in U.S. patent application publication No. 2015/0020823 to lipopwicz et al, filed on day 7-16 2014, and U.S. patent application publication No. 2015/0313275 to Anderson et al, filed on day 21-1 2015, each of which is incorporated herein in its entirety by reference thereto.
Referring back to fig. 1 and 2, the power section 72 may include the power source 12, the control circuit 11 configured to control the power source 12, and the sensor 16. The sensor 16 may be configured to respond to air drawn into the power supply section 72 through an air inlet port (not shown) adjacent to a free end or tip (e.g., distal end 28) of the e-vaping device 60. In some example embodiments, the sensor 16 may be coupled to the control circuit 11. The power source 12 may comprise a rechargeable battery. The sensors 16 may be one or more of pressure sensors, micro-electromechanical system (MEMS) sensors, and the like. A threaded portion of the power supply section 72 (e.g., at least a portion of the threaded fitting 74) may be connected to a battery charger when not connected to the first section or cartridge 70 to charge the battery or power supply 12 contained in the power supply section 72.
In some example embodiments, the capillary tube 18 is formed of or includes an electrically conductive material, and thus may be configured as its own heater (e.g., may include a heater) by passing an electrical current through the capillary tube 18. The capillary tube 18 may be any electrically conductive material capable of being heated, such as resistive heating, while maintaining structural integrity and not reacting with the pre-vapor formulation at the operating temperatures experienced by the capillary tube 18. Suitable materials for forming the capillary tube 18 are one or more of the following: stainless steel, copper alloys, porous ceramic materials coated with film resistive materials, nickel-chromium alloys, and combinations thereof. For example, the capillary tube 18 is a stainless steel capillary tube 18 and functions as a heater via electrical leads 26 attached thereto to transmit direct or alternating current along the length of the capillary tube 18. Thus, the stainless steel capillary tube 18 is heated by, for example, resistance heating. In some example embodiments, the capillary tube 18 may be a non-metallic tube, such as a glass tube. In some example embodiments, the capillary tube 18 also includes a conductive material, such as stainless steel, nichrome, or platinum wire, disposed along the glass tube and capable of heating, such as resistive heating. When the electrically conductive material disposed along the glass tube is heated, the pre-vapor formulation present in the capillary tube 18 is heated to a temperature sufficient to at least partially volatilize the pre-vapor formulation in the capillary tube 18.
In some example embodiments, the electrical leads 26 are bonded to a metal portion of the capillary 18. In some example 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.
In some example embodiments, the sensor 16 detects a pressure gradient and the control circuit 11 controls heating of the pre-vapor formulation located in the reservoir 14 by providing power to the capillary tube 18. Once the capillary tube 18 is heated, the pre-vapor formulation contained within the heated portion of the capillary tube 18 volatilizes and exits from the outlet 63, where it expands and mixes with air and forms a vapor in the mixing chamber 240.
In some example embodiments, the sensor 16 is configured to generate an output indicative of the air flow value and direction in the e-vaping device 60. The control circuit 11 receives the output of the sensor 16 and determines: (1) Whether the direction of the airflow in flow communication with the sensor 16 indicates a draw on the outlet end insert 20 (e.g., a flow through the outlet end insert 20 from the interior of the e-vaping device 60 toward the exterior of the e-vaping device 60) and a puff (e.g., a flow through the outlet end insert 20 from the exterior of the e-vaping device 60 toward the interior of the e-vaping device 60); and (2) whether a puff magnitude (e.g., flow rate, volumetric flow rate, mass flow rate, some combination thereof, etc.) exceeds a threshold level. When the control circuit 11 determines that the direction of the airflow in fluid communication with the sensor 16 indicates suction and insufflation of the outlet end insert 20 and that the magnitude of the suction (e.g., flow rate, volume flow rate, mass flow rate, some combination thereof, etc.) exceeds a threshold level, the control circuit 11 may electrically connect the power source 12 to a heater (e.g., heater 19 in fig. 4, stainless steel capillary tube 18 coupled to electrical lead 26, etc.), thereby activating (e.g., supplying electrical power to) the heater. That is, the control circuit 11 may selectively electrically connect the electrical leads 26 in a closed circuit (e.g., by activating a heater power control circuit included in the control circuit 11) such that the heater is electrically connected to the power source 12 and the power source 12 supplies power to the heater. In some example embodiments, the sensor 16 may indicate a pressure drop and the control circuit 11 may activate the heater in response thereto.
In some example embodiments, the control circuit 11 may include a time period limiter. In some example embodiments, the control circuitry 11 may include a manually operable switch for an adult vaper to initiate heating. The time period for which current is supplied to the heater may be set or preset depending on the amount of pre-vapor formulation that needs to be vaporized. In some example embodiments, the sensor 16 may detect a pressure drop and the control circuit 11 may power the heater as long as the heater activation condition is met. Such conditions may include: one or more of the sensors 16 detect a pressure drop that at least meets a threshold magnitude; control circuit 11 determines that the direction of the airflow in flow communication with sensor 16 is indicative of suction and blowing of outlet end insert 20; and the aspiration magnitude (e.g., flow rate, volumetric 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 heater of the e-vaping device 60, the control circuitry 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 storing computer-executable code.
Control circuitry 11 may include processing circuitry including, but not limited to, a processor, a Central Processing Unit (CPU), a controller, an Arithmetic Logic Unit (ALU), a digital signal processor, a microcomputer, a Field Programmable Gate Array (FPGA), a system on a chip (SoC), a programmable logic unit, a microprocessor, or any other device capable of responding to and executing instructions in a defined manner. In some example embodiments, the 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 by executing computer readable program code stored on a memory device. The program code may include at least one of a program or computer-readable instructions, software elements, software modules, data files, data structures, etc., that can be implemented by one or more hardware devices, such as in one or more of the control circuits mentioned above. Examples of program code include both machine code, generated by a compiler, and higher level program code, executed using an interpreter.
The control circuit 11 may include one or more electronic memory devices. The one or more storage devices may be a tangible or non-transitory computer-readable storage medium, such as at least one of a Random Access Memory (RAM), a Read Only Memory (ROM), a permanent mass storage device (e.g., a disk drive), a solid state (e.g., NAND flash) device, and any other similar data storage mechanism capable of storing and recording data. The one or more storage devices may be configured to store computer programs, program code, instructions, or some combination thereof, for one or more operating systems, for implementing the example embodiments described herein, or for both. The drive mechanism may also be used to load a computer program, program code, instructions, or some combination thereof, from a separate computer-readable storage medium into one or more storage devices, one or more computer processing devices, or both. Such separate computer-readable storage media may include at least one of a USB disk, memory stick, blu-ray/DVD/CD-ROM drive, memory card, and other similar computer-readable storage media. The computer program, program code, instructions, or some combination thereof, may be loaded from a remote data storage device into one or more storage devices, one or more computer processing devices, or both, through a network interface rather than through a local computer-readable storage medium. Additionally, the computer program, program code, instructions, or some combination thereof, may be loaded onto one or more storage devices, one or more processors, or both, over a network from a remote computing system configured to transmit, distribute, or both the computer program, program code, instructions, or some combination thereof. The remote computing system may transmit, distribute, or transmit and distribute the computer program, program code, instructions, or some combination thereof over at least one of a wired interface, an air interface, and any other similar medium.
The control circuit 11 may be a dedicated machine configured to execute computer executable code to control the supply of electrical power to the heater of the e-vaping device. In some example embodiments, the examples of computer executable code, when executed by the control circuit 11, causes the control circuit 11 to control the supply of power to the heater according to an activation sequence. Controlling the supply of power to the heater is interchangeably referred to herein as activating the heater, activating one or more elements contained in the heater, some combination thereof, and so forth.
As shown in fig. 2, the reservoir 14 includes a valve 40 configured to maintain the pre-vapor formulation within the reservoir 14 and to open when the reservoir 14 is squeezed and pressure is applied, which is generated when the adult vaper draws on the e-vaping device at the outlet end insert 20, which causes the reservoir 14 to force the pre-vapor formulation through an outlet 62 of the reservoir 14 to the capillary tube 18. In some example embodiments, when a particular pressure is reached, valve 40 opens in order to avoid inadvertent dispensing of the pre-vapor formulation from reservoir 14. In some example embodiments, the pressure associated with pressing the pressure switch 44 is high enough such that accidental heating due to inadvertent pressing of the pressure switch 44 by external factors such as physical movement or impact with an external object is avoided.
The power supply 12 of some example embodiments may include a battery arranged in the power supply section 72 of the e-vaping device 60. The power source 12 may be configured to apply a voltage to volatilize the pre-vapor formulation contained in the reservoir 14.
In some example embodiments, the electrical connection between the capillary 18 and the electrical leads 26 is substantially conductive and temperature resistant, while the capillary 18 is substantially resistive, such that the generation of heat occurs primarily along the capillary 18 rather than at the contacts.
The power source (or battery) 12 may be rechargeable and contain circuitry that enables the battery to be charged by an external charging device. In some example embodiments, the electrical circuit, when energized, provides power to a given number of instances of vapor drawn through the one or more outlets of the e-vaping device 60, the negative pressure applied to the interior of the e-vaping device through the one or more outlets 21, some combination thereof, or the like, after which the electrical circuit may have to be reconnected to an external charging device.
In some example embodiments, the e-vaping device 60 may include control circuitry 11, which may be, for example, on a printed circuit board. The control circuit 11 may also include a heater activation light 27 configured to emit light when the device is activated. The heater activation light 27 may include a Light Emitting Diode (LED). Further, the heater activation light 27 may be arranged to be visible to an adult vaper during smoking of the vaping. Further, the heater activation light 27 may be used for e-vaping system diagnostics or to indicate that a recharge is in progress. The heater activation light 27 may also be configured such that an adult vaper may activate, deactivate, or both activate and deactivate the heater activation light 27 for privacy. In some example embodiments, the heater activation light 27 may be located on the top end of the e-vaping device 60. In some example embodiments, the heater activation light 27 may be located on a side portion of the outer housing of the e-vapor vaping device 60.
In some example embodiments, the e-vaping device 60 further includes an outlet end insert 20 having at least two off-axis discrete outlets 21 that are evenly distributed about the outlet end insert 20 so as to substantially evenly distribute vapor from the e-vaping device 60 during operation of the e-vaping device 60. In some example embodiments, the outlet end insert 20 includes at least two discrete outlets 21 (e.g., 3 to 8 outlets or more). In some example embodiments, the outlets 21 of the outlet end insert 20 are located at the ends of the off-axis passageways 23 and are angled (e.g., fanned out) outwardly relative to the longitudinal direction of the e-vapor smoking device 60. As used herein, the term "off-axis" indicates an angle to the longitudinal direction of the e-vaping device.
In some example embodiments, the e-vaping device 60 may be about 80 millimeters to about 110 millimeters long, such as about 80 millimeters to about 100 millimeters long, and have a diameter of about 7 millimeters to about 10 millimeters.
The outer cylindrical housing 22 of the e-vaping device 60 may be formed of, or comprise, any suitable material or combination of materials. In some example embodiments, the outer cylindrical housing 22 is at least partially formed of metal and is part of the circuitry connecting the control circuitry 11, the power source 12, and the sensor 16.
As shown in fig. 2, the e-vaping device 60 may also include an intermediate section (third section) 73 that may house the reservoir 14 and the capillary tube 18. The intermediate section 73 may be configured to be fitted with a threaded fitting 74' at the upstream end of the first section or cartridge 70 and a threaded fitting 74 at the downstream end of the power supply section 72. In some example embodiments, the first section or cartridge 70 houses the outlet end insert 20, while the power supply section 72 houses the power supply 12 and the control circuit 11 configured to control the power supply 12.
Figure 3 is a cross-sectional view of an e-vaping device, according to some example embodiments. In some example embodiments, the first section or cartridge 70 is replaceable so as to avoid the need to clean the capillary tube 18. In some example embodiments, the first section or cartridge 70 and the power supply section 72 may be integrally formed without a threaded connection, thereby forming a disposable e-vaping device.
As shown in fig. 3, in some example embodiments, valve 40 may be a two-way valve and reservoir 14 may be pressurized. For example, reservoir 14 may be pressurized using a pressurization arrangement 405 configured to apply a constant pressure to reservoir 14. Thus, the vapor formed by heating the pre-vapor formulation contained in reservoir 14 is facilitated to be emitted. Once the pressure on the reservoir 14 is relieved, the valve 40 closes and the heated capillary tube 18 vents any pre-vapor formulation remaining downstream of the valve 40.
Figure 4 is a longitudinal cross-sectional view of an e-vaping device, according to some example embodiments. In some example embodiments, including the example 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 to a central channel 68 at least partially defined by the inner surface of the inner tube 65. Further, the e-vaping device 60 may include a reservoir 14 configured to store a pre-vapor formulation. The reservoir 14 comprises a pre-vapor formulation, and optionally a storage medium 25, such as a mesh, configured to store the pre-vapor formulation therein. In some example embodiments, reservoir 14 is contained in the outer annulus between outer tube 6 and inner tube 65. The loop is sealed at the upstream end by a seal 15 and at the downstream end by a stopper 10 to prevent leakage of pre-vapor formulation from the reservoir 14. The heater 19 at least partially surrounds a 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 is connected to the power source 12 by two spaced apart electrical leads 26 such that the power source 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 drawn into the wick 220 from the reservoir 14. 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 the interior of the inner tube 65 (e.g., central channel 68) and the central passage 64 extending through the stopper 10.
The e-vapor vaping device 60 may include an air flow diverter including an impermeable plug 30 at a downstream end 82 of the central air passage 24 in the seal 15. In some example embodiments, the central air passage 24 is an axially extending central passage in the seal 15 that seals the upstream end of the annulus between the outer tube 6 and the inner tube 65. The radial air channels 32 direct air outwardly from the central air passage 24 to a central channel 68 that is at least partially defined by the inner tube 65. In operation, when an adult vaper draws on the e-vaping device and generates a negative pressure, the sensor 16 detects a pressure gradient caused by the adult vaper's drawing on the outlet end insert of the e-vaping device, thereby generating the negative pressure, and the control circuit 11 therefore controls heating of the pre-vapor formulation located in the reservoir 14 by providing power (e.g., supplying power) to the heater 19.
Pre-vapor formulation
As mentioned above, in some example embodiments, the reservoir 14 of the cartridge 70 may itself be included in the e-vaping device 60, the reservoir being configured to house one or more pre-vapor formulations.
As described herein, a pre-vapor formulation is a material or combination of materials that can be converted to a vapor. For example, the pre-vapor formulation may be at least one of a liquid, solid, or gel formulation, including but not limited to water, beads, solvents, actives, ethanol, plant extracts, natural or artificial flavors, and combinations thereof. Different pre-evaporation formulations may include different elements (e.g., different compounds, substances, etc.). Different pre-vapor formulations may have different properties. For example, different pre-vapor formulations may have different viscosities when the different pre-vapor formulations are at a common temperature. One or more pre-vapor formulations may include the pre-vapor formulation described in U.S. patent application publication No. 2015/0020823 to lipopwicz et al, filed on day 7-16 2014, and U.S. patent application publication No. 2015/0313275 to Anderson et al, filed on day 21-1 2015, each of which is incorporated herein in its entirety by reference thereto.
The pre-vapor formulation may include a solvent and a solution compound. In some example embodiments, the solvent may be referred to as a vapor former. The solvent included in the pre-vapor formulation may include Propylene Glycol (PG), glycerol (Gly), water, some combination thereof, and the like.
In some example embodiments, the pre-vapor formulation includes at least one solution compound in addition to a 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 example embodiments, the solution compound may comprise a sugar compound. The sugar compound may be, for example, at least one of a monosaccharide compound, a disaccharide compound and a trisaccharide compound. When the solution compound includes a monosaccharide compound, the monosaccharide compound may include, for example, at least one of sugar acid compounds (including gluconic acid), but example embodiments are not limited thereto. When the solution compound includes a disaccharide compound, the disaccharide compound may include, for example, at least one of trehalose, but example embodiments are not limited thereto. When the solution compound includes a trisaccharide compound, the trisaccharide compound may include at least one of, for example, raffinose, but example embodiments are not limited thereto. 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 example embodiments, when the solution compound comprises a sugar compound, the sugar compound may be included in the pre-vapor formulation at a concentration greater than about 0 molar and equal to or less than about 2.5 molar.
In some example embodiments, when the solution compound comprises a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration equal to or greater than about 0.2 wt% and equal to or less than about 10 wt% based on the weight of the pre-vapor formulation. In some example embodiments, when the solution compound comprises a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration equal to or greater than about 0.2 wt% and equal to or less than about 2 wt% based on the weight of the pre-vapor formulation. In some example embodiments, when the solution compound comprises a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration equal to or greater than about 2 wt% and equal to or less than about 5 wt% by weight of the pre-vapor formulation. In some example embodiments, when the solution compound comprises a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration equal to or greater than about 5 wt% and equal to or less than about 8 wt% based on the weight of the pre-vapor formulation. In some example embodiments, when the solution compound comprises a polyol compound, the polyol compound may be included in the pre-vapor formulation at a concentration equal to or greater than about 8 wt% and equal to or less than about 10 wt% by weight of the pre-vapor formulation.
In some example embodiments, the solution compound may comprise a salt solution. The salt solution may comprise, for example, at least one of sodium chloride, sodium citrate, sodium tartrate, sodium succinate, sodium sulfate, calcium chloride, magnesium sulfate, and potassium sulfate.
When the solution compound comprises a salt solution, the salt solution may be included in the pre-vapor formulation at a concentration greater than about 0 wt% and equal to or less than about 10 wt% by weight of the pre-vapor formulation.
In some example embodiments, the solution compound may comprise a polyethylene glycol compound. The polyethylene glycol (PEG) compound may comprise, for example, at least one of PEG 200, PEG 300, and PEG 400.
When the solution compound comprises a polyethylene glycol compound, the polyethylene glycol compound may be included in the pre-vapor formulation at a concentration greater than about 0 wt% and equal to or less than about 50 wt% by weight of the pre-vapor formulation.
In some example embodiments, the solution compound may comprise at least one of nicotine, one or more flavoring agents, one or more organic acids (e.g., organic acid compounds), water, and the like.
In some example embodiments, the solution compound may increase the stability of one or more various additional elements included in the pre-vapor formulation; oxidation of one or more solid portions (e.g., cartridges) of the e-vaping device 60 that may come into contact with one or more elements of the pre-vapor formulation may be reduced or substantially prevented; can substantially prevent transfer of free radicals (including hydroxyl radicals) to the vapor produced by the e-vaping device 60; the tension of the pre-vapor formulation may be adjusted (e.g., the relative concentration of solutes included in the pre-vapor formulation relative to the one or more fluids), the osmolarity of the pre-vapor formulation may be adjusted (e.g., the osmolarity); the osmotic pressure of the pre-vapor formulation can be adjusted; the osmolality (osmolity) of the pre-vapor formulation can be adjusted; some combination thereof, and the like. In some example embodiments, the solution compound may adjust the osmolarity of the pre-vapor formulation to between about 200 milliosmol/liter to about 500 milliosmol/liter. In some example embodiments, the solution compound may adjust the osmolarity of the pre-vapor formulation to between about 280 milliosmols/liter to about 300 milliosmols/liter. In some example embodiments, the solution compound may adjust the osmolarity of the pre-vapor formulation to between about 290 milliosmol/liter to about 310 milliosmol/liter. In some example embodiments, the solution compound may adjust the osmolality of the pre-vapor formulation to be between about 200 milliosmol/kg to about 500 milliosmol/kg. In some example embodiments, the solution compound may adjust the osmolality of the pre-vapor formulation to be between about 280 milliosmols/kg to about 300 milliosmols/kg. In some example embodiments, the solution compound may adjust the osmolality of the pre-vapor formulation to be between about 290 milliosmol/kg to about 310 milliosmol/kg. In some example embodiments, the one or more fluids may include a fluid having a volume osmolarity between about 200 milliosmol/liter to about 500 milliosmol/liter, a weight osmolarity between about 200 milliosmol/kg to about 500 milliosmol/kg, or both, such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation relative to the one or more fluids. In some example embodiments, the one or more fluids may include a fluid having a volume osmolarity between about 280 milliosmol/liter to about 300 milliosmol/liter, a weight osmolarity between about 280 milliosmol/kg to about 300 milliosmol/kg, or both, such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation relative to the one or more fluids. In some example embodiments, the one or more fluids may include a fluid having a volume osmolarity between about 290 milliosmol/liter to about 310 milliosmol/liter, a weight osmolarity between about 290 milliosmol/kg to about 310 milliosmol/kg, or both, such that the pre-vapor formulation may include one or more solution compounds that adjust the tension of the pre-vapor formulation relative to the one or more fluids.
In some example embodiments, the solution compound included in the pre-vapor formulation is soluble in at least one of glycerol, propylene glycol, or water, and may be added in an amount effective to increase the stability of various elements included in the pre-vapor formulation.
In some example embodiments, hydrogen peroxide (H) formed from oxygen or oxygen in the presence of a redox active transition metal may be formed as a result of oxidation of elements of the pre-vapor formulation 2 O 2 ) The generated hydroxyl radicals are generated, so the addition of a solution compound configured to scavenge or neutralize hydroxyl radicals in the pre-vapor formulation may reduce the presence of hydroxyl radicalsSuch oxidation of one or more elements of the pre-vapor formulation is reduced or substantially prevented, and the stability of the ingredients present in the pre-vapor formulation is improved.
In some example embodiments, the pre-vapor formulation may include one or more chelating agents, one or more ion exchangers, some combination thereof, and the like, in addition to the one or more solution compounds. The presence of chelating agents and ion exchangers can bind all redox-active free transition metals and oxygen, thus limiting the formation of free radicals comprising 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 most of any remaining free radicals (e.g., hydroxyl radicals). For example, the ion exchanger can comprise a soluble polyelectrolyte polymer 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. Due to the combined action of the solution compound, the chelating agent and the ion exchanger, free radicals such as OH free radicals or free radicals formed by reaction of the pre-vapor formulation components with OH free radicals may be substantially prevented from transferring into the vapor generated during operation of the e-vaping device.
During operation of the e-vaping device 60, the acid may protonate molecular nicotine in the pre-vapor formulation such that upon heating the pre-vapor formulation by a heater in the cartridge of the e-vaping device, a vapor may be produced having a large amount of protonated nicotine and a small amount of unprotonated nicotine, whereby only a minor portion of all volatilized (evaporated) nicotine may remain in the vapor phase of the vapor. For example, although the pre-vapor formulation may include up to 5% nicotine, the proportion of nicotine in the vapor phase of the vapor may be substantially 1% or less of the total nicotine delivered.
In some example embodiments, the solution compound is soluble in the pre-vapor formulation. For example, the one or more solution compounds may be soluble in a solvent comprising at least one of water, propylene glycol, and glycerol.
In some example embodiments, one or more acids present in the pre-vapor formulation may be configured to transfer into the vapor generated based on heating of the pre-vapor formulation. The transfer efficiency of the acid 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 example embodiments, the acid or combination of acids present in the pre-vapor formulation may have a liquid-to-vapor transfer efficiency of about 50% or greater, and for example about 60% or greater. For example, the pre-vapor formulation may include one or more of pyruvic acid, tartaric acid and acetic acid, each having a vapor transfer efficiency of about 50% or greater.
In some example embodiments, the one or more acids present in the pre-vapor formulation are in an amount sufficient to reduce the amount of the nicotine gas phase portion by about 30 wt.% or more, about 60 wt.% to about 70 wt.%, about 70 wt.% or more, or about 85 wt.% or more of the level of the nicotine gas phase portion produced by an equivalent pre-vapor formulation that does not comprise the one or more acids.
According to some example embodiments, the one or more acids present in the pre-vapor formulation may comprise one or more of: pyruvic acid, formic acid, oxalic acid, glycolic acid, acetic acid, isovaleric acid, valeric acid, propionic acid, caprylic acid, lactic acid, sorbic acid, malic acid, tartaric acid, succinic acid, citric acid, benzoic acid, oleic acid, aconitic acid, butyric acid, cinnamic acid, capric acid, 3, 7-dimethyl-6-octenoic acid, 1-glutamic acid, heptanoic acid, hexanoic acid, 3-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylpentanoic acid, myristic acid, pelargonic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid, sulfuric acid, and combinations thereof.
In some example embodiments, the solvent of the pre-vapor formulation may also include a vapor forming agent. In some example embodiments, the vapor former may be glycerol. In some example embodiments, the vapor forming agent ranges from 40 wt% by weight of the pre-vapor formulation to 90 wt% (e.g., from about 50 wt% to about 80 wt%, from about 55 wt% to about 75 wt%, or from about 60 wt% to about 70 wt%) by weight of the pre-vapor formulation. In some example embodiments, the pre-vapor formulation may include propylene glycol and glycerin contained in a ratio of about 3. In some example embodiments, the ratio of propylene glycol and glycerol may be substantially 2.
The pre-vapor formulation may comprise water. The water may be present in an amount ranging from about 5 wt% based on the weight of the pre-vapor formulation to about 40 wt% based on the weight of the pre-vapor formulation, or in an amount ranging from about 10 wt% based on the weight of the pre-vapor formulation to about 15 wt% based on the weight of the pre-vapor formulation.
The one or more acids present in the pre-vapor formulation may have a boiling point of at least about 100 ℃. For example, the boiling point of the one or more acids can be in the range of about 100 ℃ to about 300 ℃ or about 150 ℃ to about 250 ℃ (e.g., about 160 ℃ to about 240 ℃, about 170 ℃ to about 230 ℃, about 180 ℃ to about 220 ℃, or about 190 ℃ to about 210 ℃). By generating an acid having a boiling point in the above range, the acid may be volatilized when heated by a heater element of the e-vaping device. In some example embodiments utilizing a heater coil and wick, the operating temperature that the heater coil can reach is at or about 300 ℃.
The total content of the one or more acids present in the pre-vapor formulation may range from about 0.1 wt% to about 6 wt%, or from about 0.1 wt% to about 2 wt%, based on the weight of the pre-vapor formulation. The pre-vapor formulation may also contain between up to 3% and 5% nicotine by weight. In some example embodiments, the total acid generated content of the pre-vapor formulation is less than about 3 wt%. In some example embodiments, the total acid generated content of the pre-vapor formulation is less than about 0.5 wt%. The pre-vapor formulation may also contain between about 4.5% and 5% nicotine by weight. When at least one of tartaric acid, pyruvic acid, and acetic acid is present, the total acid content of the pre-vapor formulation may be about 0.05 wt% to about 2 wt%, or about 0.1 wt% to about 1 wt%.
The pre-vapor formulation may comprise flavoring in an amount in the range of about 0.01 wt% to about 15 wt% (e.g., about 1 wt% to about 12 wt%, about 2 wt% to about 10 wt%, or about 5 wt% to about 8 wt%) based on the weight of the pre-vapor formulation. The flavoring agent may be a natural flavoring agent or an artificial flavoring agent. In some example embodiments, the flavoring agent is one or more of tobacco flavor, menthol, wintergreen, peppermint, herbal flavor, fruit flavor, nut flavor, wine flavor, and combinations thereof.
In some example embodiments, nicotine is included in the pre-vapor formulation in an amount ("nicotine content") in the range of about 2% to about 6% by weight (e.g., about 2% to about 3% by weight, about 2% to about 4% by weight, about 2% to about 5% by weight) based on the weight of the pre-vapor formulation. In some example embodiments, nicotine is added in an amount up to 5 wt% by weight of the pre-vapor formulation. In some example embodiments, the nicotine content of the pre-vapor formulation is about 2% by weight or greater based on the weight of the pre-vapor formulation. In some example embodiments, the nicotine content of the pre-vapor formulation is about 2.5% by weight or greater based on the weight of the pre-vapor formulation. In some example embodiments, the nicotine content of the pre-vapor formulation is about 3% by weight or greater based on the weight of the pre-vapor formulation. In some example embodiments, the nicotine content of the pre-vapor formulation is about 4% by weight or greater based on the weight of the pre-vapor formulation. In some example embodiments, the nicotine content of the pre-vapor formulation is about 4.5% by weight or greater based on the weight of the pre-vapor formulation.
In some example embodiments, the concentration of nicotine in the gas phase of the pre-vapor formulation is equal to or less than substantially 1% by weight based on the weight of the pre-vapor formulation. In some example embodiments, the one or more acids comprise at least one of: 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-hexenoic acid, trans-2-hexenoic acid, isobutyric acid, lauric acid, 2-methylbutyric acid, 2-methylvaleric acid, myristic acid, nonanoic acid, palmitic acid, 4-pentenoic acid, phenylacetic acid, 3-phenylpropionic acid, hydrochloric acid, phosphoric acid, and sulfuric acid.
Although a number of example embodiments have been disclosed herein, it should be understood that other variations may be possible. Such variations are not to be regarded as a departure from the scope of the disclosure, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (32)
1. A pre-vapor formulation for an e-vaping device, the pre-vapor formulation comprising:
a solvent comprising at least one of propylene glycol and glycerol; and
a solution compound, said solution compound being
A salt solution, and
optionally a sugar compound, or
Optionally a polyethylene glycol compound;
wherein the salt solution comprises at least one of:
the concentration of the sodium chloride is controlled by the concentration of the sodium chloride,
the sodium salt of tartaric acid, sodium tartrate,
the amount of sodium succinate is greater than the amount of sodium succinate,
the sodium sulfate is added to the reaction mixture,
the concentration of calcium chloride is controlled by the concentration of calcium chloride,
the concentration of the magnesium chloride is controlled by the concentration of the magnesium,
magnesium sulfate, and
potassium sulfate;
wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation; and
wherein the pre-vapor formulation further comprises one or more chelating agents and one or more ion exchangers having carboxylic acid functional groups.
2. The pre-vapor formulation of claim 1,
the solution compound further comprises a sugar compound, and
the concentration of the sugar compound in the pre-vapor formulation is greater than 0 molar and equal to or less than 2.5 molar.
3. The pre-vapor formulation of claim 2,
the sugar compound comprises at least one of:
a monosaccharide compound, a salt thereof, a sugar,
a disaccharide compound which is a mixture of a disaccharide compound,
a trisaccharide compound, and
a polyol compound.
4. The pre-vapor formulation of claim 2,
the sugar compound is a polyol compound, and
the polyol compound comprises at least one of:
the content of mannitol is more than that of mannitol,
the erythritol is mixed with the water to be added,
xylitol, and
sorbitol.
5. The pre-vapor formulation of claim 4, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 0.2 wt% and equal to or less than 10 wt% 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 equal to or greater than 0.2 wt% and equal to or less than 5 wt% based on the weight of the pre-vapor formulation.
7. The pre-vapor formulation of claim 5, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 5 wt% and equal to or less than 8 wt% based on the weight of the pre-vapor formulation.
8. The pre-vapor formulation of claim 5, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 8 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation.
9. The pre-vapor formulation of any one of claims 1-8,
the solution compound further comprises a polyethylene glycol (PEG) compound, and
the polyethylene glycol (PEG) compound comprises at least one of:
PEG 200，
PEG 300, and
PEG 400。
10. the pre-vapor formulation of claim 9, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is greater than 0 wt% and equal to or less than 50 wt% based on the weight of the pre-vapor formulation.
11. A cartridge for an e-vaping device, the cartridge comprising:
a reservoir containing a pre-vapor formulation; and
a heater configured to heat the pre-vapor formulation;
wherein the pre-vapor formulation comprises,
a solvent comprising at least one of propylene glycol and glycerol; and
a solution compound, said solution compound being
A salt solution, and
optionally a sugar compound, or
Optionally a polyethylene glycol compound;
wherein the salt solution comprises at least one of:
the concentration of sodium chloride is controlled by the concentration of sodium chloride,
the concentration of the sodium tartrate is controlled by the concentration of the sodium tartrate,
the amount of sodium succinate is greater than the amount of sodium succinate,
the sodium sulfate is added to the reaction mixture,
the calcium chloride is added into the mixture of the calcium chloride,
the concentration of the magnesium chloride is controlled by the concentration of the magnesium,
magnesium sulfate, and
potassium sulfate;
wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation; and
wherein the pre-vapor formulation further comprises one or more chelating agents and one or more ion exchangers having carboxylic acid functional groups.
12. The cartridge according to claim 11, wherein,
the solution compound further comprises a sugar compound, and
the concentration of the sugar compound in the pre-vapor formulation is greater than 0 molar and equal to or less than 2.5 molar.
13. The cartridge according to claim 12, wherein,
the sugar compound comprises at least one of:
a monosaccharide compound, a salt thereof, a sugar,
a disaccharide compound which is a mixture of a disaccharide compound,
a trisaccharide compound, and
a polyol compound.
14. The cartridge according to claim 12, wherein,
the sugar compound is a polyol compound, and
the polyol compound comprises at least one of:
the content of mannitol is more than that of mannitol,
the erythritol is mixed with the water to be added,
xylitol, and
sorbitol.
15. The cartridge of claim 14, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 0.2 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation.
16. The cartridge of claim 15 wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 0.2 wt% and equal to or less than 5 wt% based on the weight of the pre-vapor formulation.
17. The cartridge of claim 15, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 5 wt% and equal to or less than 8 wt% based on the weight of the pre-vapor formulation.
18. The cartridge of claim 15, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 8 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation.
19. The cartridge according to any one of claims 11 to 18,
the solution compound further comprises a polyethylene glycol (PEG) compound, and
the polyethylene glycol (PEG) compound comprises at least one of:
PEG 200，
PEG 300, and
PEG 400。
20. the cartridge of claim 19, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is greater than 0 wt% and equal to or less than 50 wt% based on the weight of the pre-vapor formulation.
21. An e-vaping device, comprising:
a cartridge comprising a reservoir containing a pre-vapor formulation and a heater configured to heat the pre-vapor formulation; and
a power section coupled to the cartridge, the power section configured to supply power to the heater;
wherein the pre-vapor formulation comprises:
a solvent comprising at least one of propylene glycol and glycerol; and
a solution compound, said solution compound being
A salt solution, and
optionally a sugar compound, or
Optionally a polyethylene glycol compound;
wherein the salt solution comprises at least one of:
the concentration of the sodium chloride is controlled by the concentration of the sodium chloride,
the concentration of the sodium tartrate is controlled by the concentration of the sodium tartrate,
the amount of the sodium succinate is determined by the weight of the sodium succinate,
sodium sulfate,
the calcium chloride is added into the mixture of the calcium chloride,
the concentration of the magnesium chloride is controlled by the concentration of the magnesium,
magnesium sulfate, and
potassium sulfate;
wherein the concentration of the salt solution in the pre-vapor formulation is greater than 0 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation; and
wherein the pre-vapor formulation further comprises one or more chelating agents and one or more ion exchangers having carboxylic acid functional groups.
22. The electronic vaping device of claim 21, wherein,
the solution compound further comprises a sugar compound, and
the concentration of the sugar compound in the pre-vapor formulation is greater than 0 molar and equal to or less than 2.5 molar.
23. The e-vaping device of claim 22, wherein,
the sugar compound comprises at least one of:
a compound of a monosaccharide, which is a compound of,
a disaccharide compound selected from the group consisting of,
a trisaccharide compound, and
a polyol compound.
24. The e-vaping device of claim 22, wherein,
the sugar compound is a polyol compound, and
the polyol compound comprises at least one of:
the content of the mannitol is determined by the content of mannitol,
the erythritol is mixed with the water to be added,
xylitol, and
sorbitol.
25. The e-vaping device of claim 24, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 0.2 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation.
26. The e-vaping device of claim 25, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 0.2 wt% and equal to or less than 5 wt% based on the weight of the pre-vapor formulation.
27. The e-vaping device of claim 25, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 5 wt% and equal to or less than 8 wt% based on the weight of the pre-vapor formulation.
28. The e-vaping device of claim 25, wherein the concentration of the polyol compound in the pre-vapor formulation is equal to or greater than 8 wt% and equal to or less than 10 wt% based on the weight of the pre-vapor formulation.
29. The e-vaping device of any one of claims 21 to 28,
the solution compound further comprises a polyethylene glycol (PEG) compound, and
the polyethylene glycol (PEG) compound comprises at least one of:
PEG 200，
PEG 300, and
PEG 400。
30. the e-vaping device of claim 29, wherein the concentration of the polyethylene glycol compound in the pre-vapor formulation is greater than 0 wt% and equal to or less than 50 wt% based on the weight of the pre-vapor formulation.
31. The e-vaping device of any of claims 21-28, wherein the power supply section includes a rechargeable battery.
32. The e-vaping device of any of claims 21-28, wherein the cartridge and the power supply section are removably coupled together.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/423,699 | 2017-02-03 | ||
| US15/423,699 US20180220697A1 (en) | 2017-02-03 | 2017-02-03 | Methods and systems for improving stability of pre-vapor formulations of e-vaping devices |
| PCT/EP2018/052717 WO2018141941A2 (en) | 2017-02-03 | 2018-02-02 | Methods and systems for improving stability of pre-vapor formulations of e-vaping devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110167365A CN110167365A (en) | 2019-08-23 |
| CN110167365B true CN110167365B (en) | 2023-01-03 |
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| CN201880006151.4A Active CN110167365B (en) | 2017-02-03 | 2018-02-02 | Method and system for improving stability of pre-vapor formulation of electronic vapor smoking device |
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| EP (1) | EP3576552A2 (en) |
| JP (1) | JP7208899B2 (en) |
| KR (1) | KR102649834B1 (en) |
| CN (1) | CN110167365B (en) |
| CA (1) | CA3041189A1 (en) |
| IL (1) | IL268072A (en) |
| MX (1) | MX2019008845A (en) |
| RU (1) | RU2751668C2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10117463B2 (en) * | 2014-01-03 | 2018-11-06 | Robert P Thomas, Jr. | Vapor delivery device |
| EP3597054A4 (en) * | 2017-04-24 | 2020-11-04 | Japan Tobacco Inc. | Aerosol generation apparatus, method for controlling aerosol generation apparatus, and program |
| EP3906794A4 (en) * | 2019-01-25 | 2022-10-19 | China Tobacco Hunan Industrial Co., Ltd. | Water-based electronic cigarette liquid |
| CN114828663A (en) * | 2019-12-18 | 2022-07-29 | 菲利普莫里斯生产公司 | Formulations for aerosol-generating systems |
| KR20220117268A (en) * | 2019-12-18 | 2022-08-23 | 필립모리스 프로덕츠 에스.에이. | Formulations for use in aerosol-generating systems |
| WO2023058750A1 (en) * | 2021-10-08 | 2023-04-13 | 日本たばこ産業株式会社 | Liquid for atomization and production method for same |
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| CN104068470A (en) * | 2014-07-07 | 2014-10-01 | 嘉兴市得百科新材料科技有限公司 | Electronic cigarette liquid solvent and preparation method for same |
| CN104655778A (en) * | 2015-02-16 | 2015-05-27 | 国家烟草质量监督检验中心 | Method for determining contents of 18 kinds of volatile and semi-volatile organic compounds in electronic cigarette smoke liquid and aerosol |
| CN105341990A (en) * | 2015-12-16 | 2016-02-24 | 浙江中烟工业有限责任公司 | Electronic cigarette tobacco juice capable of improving physiological satisfaction of electronic cigarettes |
| CN106072756A (en) * | 2016-08-04 | 2016-11-09 | 上海应用技术学院 | A kind of electronic cigarette liquid containing phenethanol glucosides |
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| US9282772B2 (en) | 2012-01-31 | 2016-03-15 | Altria Client Services Llc | Electronic vaping device |
| CN103404969A (en) * | 2012-10-05 | 2013-11-27 | 佛山市新芯微电子有限公司 | Electronic cigarette device |
| CN110367592B (en) | 2013-07-19 | 2022-12-02 | 奥驰亚客户服务有限责任公司 | Liquid aerosol formulation for electronic smoking article |
| US9877511B2 (en) * | 2013-07-24 | 2018-01-30 | Altria Client Services Llc | Electronic smoking article |
| US10265292B2 (en) | 2013-09-18 | 2019-04-23 | The Werc Shop, LLC | Terpene-based compositions, processes methodologies |
| CN103622161A (en) * | 2013-11-28 | 2014-03-12 | 刘秋明 | Electronic cigarette tobacco juice solvent and electronic cigarette tobacco juice |
| CN103598672A (en) * | 2013-11-28 | 2014-02-26 | 刘秋明 | Electronic cigarette liquid solvent and electronic cigarette liquid |
| WO2015167629A1 (en) | 2014-04-30 | 2015-11-05 | Altria Client Services Inc. | Liquid aerosol formulation of an electronic smoking article |
| DK3166426T3 (en) | 2014-07-11 | 2018-10-29 | Philip Morris Products Sa | AEROSOL GENERATING SYSTEM COMPREHENSIVE PATTERN DETECTION |
| CN104256885B (en) * | 2014-08-05 | 2015-12-30 | 云南中烟工业有限责任公司 | A kind of tobacco juice for electronic smoke solvent |
| GB201516729D0 (en) | 2015-09-22 | 2015-11-04 | The Technology Partnership Plc | Liquid nicotine formulation |
| CN106562469A (en) * | 2015-10-07 | 2017-04-19 | 惠州市吉瑞科技有限公司 | Electronic cigarette tobacco liquid |
| CN105310103B (en) * | 2015-11-04 | 2017-10-24 | 深圳瀚星翔科技有限公司 | A kind of electronic cigarette tobacco tar and preparation method thereof |
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2017
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- 2018-02-02 CA CA3041189A patent/CA3041189A1/en not_active Abandoned
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Patent Citations (4)
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| CN104068470A (en) * | 2014-07-07 | 2014-10-01 | 嘉兴市得百科新材料科技有限公司 | Electronic cigarette liquid solvent and preparation method for same |
| CN104655778A (en) * | 2015-02-16 | 2015-05-27 | 国家烟草质量监督检验中心 | Method for determining contents of 18 kinds of volatile and semi-volatile organic compounds in electronic cigarette smoke liquid and aerosol |
| CN105341990A (en) * | 2015-12-16 | 2016-02-24 | 浙江中烟工业有限责任公司 | Electronic cigarette tobacco juice capable of improving physiological satisfaction of electronic cigarettes |
| CN106072756A (en) * | 2016-08-04 | 2016-11-09 | 上海应用技术学院 | A kind of electronic cigarette liquid containing phenethanol glucosides |
Also Published As
| Publication number | Publication date |
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| JP7208899B2 (en) | 2023-01-19 |
| CA3041189A1 (en) | 2018-08-09 |
| US20180220697A1 (en) | 2018-08-09 |
| EP3576552A2 (en) | 2019-12-11 |
| WO2018141941A3 (en) | 2018-12-20 |
| CN110167365A (en) | 2019-08-23 |
| IL268072A (en) | 2019-09-26 |
| KR20190114964A (en) | 2019-10-10 |
| RU2751668C2 (en) | 2021-07-15 |
| WO2018141941A2 (en) | 2018-08-09 |
| JP2020504999A (en) | 2020-02-20 |
| KR102649834B1 (en) | 2024-03-21 |
| RU2019127181A (en) | 2021-03-03 |
| RU2019127181A3 (en) | 2021-05-21 |
| MX2019008845A (en) | 2019-09-11 |
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