GB1597147A - Aerosol dispenser - Google Patents
Aerosol dispenser Download PDFInfo
- Publication number
- GB1597147A GB1597147A GB4993677A GB4993677A GB1597147A GB 1597147 A GB1597147 A GB 1597147A GB 4993677 A GB4993677 A GB 4993677A GB 4993677 A GB4993677 A GB 4993677A GB 1597147 A GB1597147 A GB 1597147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- orifice
- flammable
- propellant
- diameter
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004479 aerosol dispenser Substances 0.000 title claims description 27
- 239000007791 liquid phase Substances 0.000 claims description 67
- 239000003380 propellant Substances 0.000 claims description 65
- 239000000443 aerosol Substances 0.000 claims description 46
- 239000012808 vapor phase Substances 0.000 claims description 45
- 239000007921 spray Substances 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 33
- 229930195733 hydrocarbon Natural products 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002304 perfume Substances 0.000 claims description 3
- 150000008282 halocarbons Chemical group 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229940118827 zinc phenolsulfonate Drugs 0.000 claims description 2
- BOVNWDGXGNVNQD-UHFFFAOYSA-L zinc;2-hydroxybenzenesulfonate Chemical compound [Zn+2].OC1=CC=CC=C1S([O-])(=O)=O.OC1=CC=CC=C1S([O-])(=O)=O BOVNWDGXGNVNQD-UHFFFAOYSA-L 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 description 11
- 239000004480 active ingredient Substances 0.000 description 6
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- HIQIXEFWDLTDED-UHFFFAOYSA-N 4-hydroxy-1-piperidin-4-ylpyrrolidin-2-one Chemical compound O=C1CC(O)CN1C1CCNCC1 HIQIXEFWDLTDED-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 244000273618 Sphenoclea zeylanica Species 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000001166 anti-perspirative effect Effects 0.000 description 2
- 239000003213 antiperspirant Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000001282 iso-butane Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- BHNZEZWIUMJCGF-UHFFFAOYSA-N 1-chloro-1,1-difluoroethane Chemical compound CC(F)(F)Cl BHNZEZWIUMJCGF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- YVIMHTIMVIIXBQ-UHFFFAOYSA-N [SnH3][Al] Chemical compound [SnH3][Al] YVIMHTIMVIIXBQ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000008266 hair spray Substances 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/32—Dip-tubes
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
(54) AEROSOL DISPENSER
(71) We, CARTER-WALLACE, INC. a Corporation organised and existing under the laws of the State of Delaware, United States of America, of, 767 Fifth Avenue, New York,
N.Y. 10022, United States of America, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:
This invention relates to self-propelled or aerosol dispensers.
A self-propelled or aerosol dispensing container includes a vapor phase or propellant and a liquid phase containing the propellant, in liquid form, as well as a liquid to be dispensed.
The propellants which are generally employed in the art are non-flammable fluorocarbons; however, as a result of environmental considerations, fluorocarbons are no longer considered to be suitable as propellants.
Hydrocarbons have been employed as propellants; however, such hydrocarbon propellants are flammable, and as a result, the dispensed aerosol spray is also flammable.
Accordingly, hydrocarbons are not considered to be suitable for all applications.
In accordance with the present invention there is provided an aerosol dispenser which includes a flammable propellant vapor phase and a non-aqueous liquid phase, containing liquid flammable propellant and ingredient to be dispensed (the ingredient to be dispensed is either the active ingredient (s) or liquid carrier having an active ingredient (s) in solid or liquid form dispersed therein), with the container further including valve means for controlling the relative proportions of vapor and liquid phase dispensed therefrom, whereby the ratio of gas propellant to liquid propellant in the dispensed aerosol spray provides a non-flammable (as hereinafter defined) aerosol spray.
In accordance with a preferred embodiment, the liquid phase, including the flammable propellant is in a single phase (the single phase refers to the liquid in that a solid can be dispersed in the liquid; i.e. the liquids are miscible and the propellant is not present as a separate phase).
Applicant has found that by controlling the relative proportions of propellant present in vapor and liquid form in the dispensed aerosol spray, it is possible to employ a flammable propellant, without the use of flame retardents, to provide a non-flammable aerosol spray; however, as should be apparent such flame retardents could be used.
In accordance with a specific embodiment of the present invention, the relative proportions of vapor and liquid phase dispensed from the container are controlled by employing a vapor tap dispensing valve member in which the diameter of the vapor phase orifice are coordinated to dispense the vapor phase in the proportions required to provide a non-flammable spray.
More particularly, Applicant has found that by increasing the size of the vapor phase orifice with respect to the liquid phase orifice it is possible to employ a flammable propellant, without generating a flammable aerosol spray. It is to be understood that the liquid phase orifice is the valve body orifice in using a dispenser having a conventional dip tube and is the capillary dip tube orifice when using such capillary dip tube.
The ratio of the diameter of the vapor phase orifice to the diameter of the liquid phase orifice should be at least 0.6:1, with the ratio preferably being at least 0.7:1. The ratio of the diameter of the vapor phase orifice to the diameter of the liquid phase orifice generally does not exceed 1.25 to 1, and preferably does not exceed 0.9:1. The ratio could be higher; however, higher ratios may adversely affect the ability to dispense all the liquid phase, which contains the active ingredient from the container.
The vapor phase orifice generally has a diameter of from .008 inch to .080 inch, and preferably a diameter of from .016 inch to .060 inch, with particularly good results being obtained with a vapor phase orifice of .016 inch. The liquid phase orifice diameter is generally from .010 inch to .130 inch, and preferably from .015 inch to .080 inch, with particularly good results being obtained with a liquid phase orifice diameter of .020 inch.
The flammable propellant may be any one of a wide variety of flammable propellants suitable for dispensing the contents of an aerosol container. In general, the propellant is a flammable hydrocarbon propellant which may be comprised of one or more hydrocarbons.
The hydrocarbon propellant is generally a hydrocarbon or hydrocarbon mixture which exerts a vapor pressure of from 17 to 107 psig, and preferably of from 31 to 46 psig. The most preferred hydrocarbons are the C3 to C5 saturated aliphatic hydrocarbons. It is to be understood that the propellant could also be a flammable halogenated propellant, such as 1,1-difluoro-1 chloroethane or 1,1-difluoroethane. The flammable propellant is generally present in the liquid phase in an amount of from 10% to 90% by weight.
The self-propelled or aerosol container can be employed to deliver any one of a wide variety of aerosol compositions. Thus, for example, such aerosol compositions include pharmaceuticals, cosmetics; anti-perspirants; deodorants; hair sprays; insecticides, cleaners; polishes; fragrances; etc. The selection of a suitable liquid phase containing the appropriate active ingredient is deemed to be within the scope of those skilled in the art from the teachings herein.
The present invention is applicable to the so-called dry system; i.e., the ingredients to be dispensed other than the propellant are non-volatile, and to the so-called wet system the liquid to be dispensed includes a volatile alcohol (generally a C1 to C5 alkanol). In the so-called dry system, the liquid phase generally contains from 50% to 90% propellant. In the so-called wet system, the liquid phase generally includes 10% to 90% propellant, 89% to 9% alcohol, with the remainder being ingredient(s) to be dispensed.
In accordance with a particularly preferred embodiment, the present invention is employed for dispensing an anti-perspirant composition.
The present invention will be further described with respect to an embodiment thereof illustrated in the accompanying drawing, wherein: The drawing is a vertical cross sectional view of an aerosol container.
Referring now to the drawing, there is illustrated an aerosol dispenser comprised of a closed container 1 in which is contained a top vapor phase 2 of a vaporized flammable propellant, such as a hydrocarbon, and a liquid phase 3 containing an active ingredient dispersed in a carrier and the liquefied flammable propellant, in which the liquid is present as a single phase. The active ingredient can be a solid dispersed in the liquid. The container 1 can be made of any one of a wide variety of materials, including glass, plastic coated glass, plastic materials, aluminium tin plated steel, etc. The container 1 is provided with a cup member 4 for holding a valve member 5 in the top of the container for dispensing the contents of the container.The valve member 5 comprises a hollow stem 6 with the valve 7 normally seated against gasket surface 8 by means of a spring in chamber 16. The housing 10 further includes a tail piece 11, with a liquid opening or orifice 12. Attached to the tail piece 11 is a dip tube 13 extending into the liquid phase.
The valve housing 10 includes a vapor phase opening or orifice 18 for the separate entry of vapor from the top vapor phase 2 into the chamber 16.
On the valve stem 6 is mounted an actuator or button 14 containing a passageway in communication with the hollow stem 6 and containing an aerosol dispensing orifice 15.
When the valve member is actuated by pressing down the button 14 the valve 7 is unseated and the pressure of the propellant vapor phase extrudes the liquid phase up the dip tube 13 and through the tail piece or liquid orifice 12 into the chamber 16 defined by housing 10.
Vapor from the top vapor phase 2 enters the chamber 16 through the vapor tap opening 18 at the same time that the liquid phase is introduced into the chamber 16 and the vapor and liquid phases are intermixed in the chamber 16. The mixture then enters the valve stem 6 through stem orifice 17 and is discharged from the chamber formed by the hollow valve stem out through the button orifice 15 as an aerosol spray.
In accordance with the present invention, the diameter of the orifice 18 for the vapor is coordinated with the diameter of the orifice 12 for the liquid phase in a manner such that the ratio of the diameter of the vapor phase orifice 18 to the diameter of the liquid phase orifice 12 is at least 0.6 to 1, and preferably at least 0.7 to 1. Similarly, as hereinabove noted, the ratio of the diameter of the orifice 18 to the diameter of the orifice 12 generally does not exceed 1.25 to 1, and preferably does not exceed 0.9 to 1. In this manner, the vaporized propellant in the top vapor phase 2 and the liquid phase 3 are mixed in the chamber 16 in respective proportions so that the aerosol spray dispensed from the container is non-flammable.
The actuator design and size of the valve stem orifice 17 and actuator orifice 15 are also coordinated with the size of vapor tap orifice and the liquid orifice to provide the desired delivery rate, with such rates being up to about 10 gms/10 seconds; however, in some cases, it may be necessary to limit the delivery rate to no greater than 4 gms/10 sec.
Although the present invention has been described with respect to a particular embodiment thereof illustrated in the accompanying drawing, it is to be understood that the scope of the invention is not limited therebv. Thus, for example, the aerosol dispensing container may take a form other than the one particularly shown. provided that the proportions of vapor phase and liquid phase dispensed from the container are controlled to provide an aerosol sprav which is non-flammable. In particular, the valve mechanism may be other than as particularly described, provided that the vapor tap orifice and the liquid phase orifice are coordinated as hereinabove described.
Moreover, in some cases. the liquid phase is dispensed through a capillary type of dip tube, in which case the term "liquid phase orifice" is the diameter of the capillary dip tube in that it is in fact the diameter of the capillary dip tube which controls the amount of liquid introduced into the mixing chamber of the valve.
The invention will be further described with respect to the following examples; however, the scope of the invention is not to be limited thereby.
EXAMPLE 1
An aerosol container having an Ethyl Corporation valve (stem orifice diameter .016" vapor tap orifice diameter .016"; body orifice (liquid phase) diameter .020", with MARC 40-1517 actuator having an orifice diameter of .015"; and delivery rate of 2-2.5 gms/10 sec) is filled with the following composition: ingredient Wt.c4 Aluminum chlorohvdrate 3.5
Isopropyl myristate 6.14
Perfume ().l() Bentone 34 0.26
Isobutane 90.0(1 IOO.OOC/e The aerosol spray is non-flammable: i.e.. the flame extension is less than 18" without flashback (ASTM-D-3()65-72).
EXAMPLE 11
An aerosol container having a Precision valve (stem orifice diameter .016": Body orifice diameter .062": capillary dip tube orifice (liquid phase) diameter .040": vapor tap orifice diameter .040", 01-1408-01 actuator having an orifice diameter of .016": and delivery rate of 2-3 gms/10 sec.) is filled with the following composition: lngredie)lt Wt. t Aluminum chlorohvdrate Isopropyl Myristate 24.96 Bentone 34 1.()4
A-46 Propellant (Isobutane/Propane) (70.()() The flame extension of the spray is less than 1X". without flashback (ASTM-D-3()65-72).
EXAMPLE 111 An aerosol container having a Summit Packaging System valve (stem orifice diameter .016"; body orifice diameter .020"; vapor tap orifice diameter .016", with MB disc actuator having an orifice diameter of .016") is filled with the following composition:
Ingredient Wt. % Anhydrous ethanol 37.2
Zinc Phenolsulfonate 1.0
Propylene glycol 1.5
Perfume 0.3
A-46 Propellant (IsobutaneNcPropane) 60.0
100.00%
The flame extension of the spray is less than 18". without flashback (ASTM-D-3065-72).
The present invention is particularly advantageous in that is is possible to provide an aerosol dispenser, which employs a flammable propellant, without producing a flammable aerosol spray i.e., the aerosol spray is non-flammable within less than 18" from the spray nozzle. The term "non-flammable" as used herein means that an aerosol spray is non-flammable during the period in which the spray consists of a mixture of gas and liquid phase and is less than 18 inches from the ignition source, that is in ASTM Test D-3065-72 the flame extension is less than 18" without flashback. In general. the aerosol sprays dispensed in accordance with the invention have a flame extension of less than 12" without flashback.Moreover, it is possible to produce such non-flammable sprays without the use of water in the liquid phase and without the use of a separate phase of liquid propellant. i.e., the liquid to be dispensed, including propellant. is present as a single liquid phase.
Numerous modifications and variations of the present invention are possible in light of the above teachings and. therefore, within the scope of the appended claims, the invention may be practiced otherwise than as particularly described.
WHAT WE CLAIM IS:
1. An aerosol dispenser comprising a container containing a vapor phase and a non-aqueous liquid phase, said vapor phase containing a flammable propellant, said liquid phase containing said flammable propellant in liquid form and ingredient to be dispensed; and valve means for dispensing the vapor and liquid phase from the container. as an aerosol spray, said valve means including means for controlling the relative proportions of vapor and liquid phase dispensed from the container whereby the ratio of gas flammable propellant to liquid flammable propellant in the dispensed aerosol spray provides a non-flammable (as hereinbefore defined) aerosol spray.
2. An aerosol dispenser according to claim 1 wherein said valve means includes a vapor phase orifice and a liquid phase orifice. the ratio of the diameter of the vapor phase orifice to the diameter of the liquid phase orifice being at least ().6 to 1 to control the relative proportions of vapor and liquid phases dispensed and provide the non-flammable aerosol spray.
3. An aerosol dispenser according to claim 7 wherein the ratio of the diameter of the vapor phase orifice to the diamter of the liquid phase orifice does not exceed 1.25 to 1.
4. An aerosol dispenser according to claim 2 wherein the ratio is at least ().7: 1 and no greater than 0.9:1.
5. An aerosol dispenser according to any one of claims 2 to 2 wherein the vapor phase orifice has a diameter of from .()08 inch to .(180 inch and the diameter of the liquid phase orifice has a diameter of from .010 inch to .13(1 inch.
6. An aerosol dispenser accoridng to claim 5 wherein the vapor phase orifice has a diameter of from .020 inch to .060 inch and the liquid phase orifice has a diameter of from .()15 inch to .080 inch.
7. An aerosol dispenser according to any one of claims 7 to 6 wherein the valve means includes a capillary dip tube for the liquid phase and the diameter of the liquid phase orifice is the diameter of the capillary dip tube.
8. An aerosol dispenser according to any one of claims I to 7 wherein the flammable propellant is a hydrocarbon propellant.
9. An aerosol dispenser according to any one of claims I to 7 wherein the flammable propellant is a halogenated hydrocarbon propellant.
10. An aerosol dispenser substantiallv as hereinbefore described and as shown in the accompanying drawings.
11. A method of dispensing an aerosol spray from an aerosol container. contilillilnl a vapor phase and a non-aqueous liquid phase. Slid vapor phase contiinin a flammable propellant. said liquid phase containing the flammable propellant in liquid form and
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (14)
1. An aerosol dispenser comprising a container containing a vapor phase and a non-aqueous liquid phase, said vapor phase containing a flammable propellant, said liquid phase containing said flammable propellant in liquid form and ingredient to be dispensed; and valve means for dispensing the vapor and liquid phase from the container. as an aerosol spray, said valve means including means for controlling the relative proportions of vapor and liquid phase dispensed from the container whereby the ratio of gas flammable propellant to liquid flammable propellant in the dispensed aerosol spray provides a non-flammable (as hereinbefore defined) aerosol spray.
2. An aerosol dispenser according to claim 1 wherein said valve means includes a vapor phase orifice and a liquid phase orifice. the ratio of the diameter of the vapor phase orifice to the diameter of the liquid phase orifice being at least ().6 to 1 to control the relative proportions of vapor and liquid phases dispensed and provide the non-flammable aerosol spray.
3. An aerosol dispenser according to claim 7 wherein the ratio of the diameter of the vapor phase orifice to the diamter of the liquid phase orifice does not exceed 1.25 to 1.
4. An aerosol dispenser according to claim 2 wherein the ratio is at least ().7: 1 and no greater than 0.9:1.
5. An aerosol dispenser according to any one of claims 2 to 2 wherein the vapor phase orifice has a diameter of from .()08 inch to .(180 inch and the diameter of the liquid phase orifice has a diameter of from .010 inch to .13(1 inch.
6. An aerosol dispenser accoridng to claim 5 wherein the vapor phase orifice has a diameter of from .020 inch to .060 inch and the liquid phase orifice has a diameter of from .()15 inch to .080 inch.
7. An aerosol dispenser according to any one of claims 7 to 6 wherein the valve means includes a capillary dip tube for the liquid phase and the diameter of the liquid phase orifice is the diameter of the capillary dip tube.
8. An aerosol dispenser according to any one of claims I to 7 wherein the flammable propellant is a hydrocarbon propellant.
9. An aerosol dispenser according to any one of claims I to 7 wherein the flammable propellant is a halogenated hydrocarbon propellant.
10. An aerosol dispenser substantiallv as hereinbefore described and as shown in the accompanying drawings.
11. A method of dispensing an aerosol spray from an aerosol container. contilillilnl a vapor phase and a non-aqueous liquid phase. Slid vapor phase contiinin a flammable propellant. said liquid phase containing the flammable propellant in liquid form and
Ingredient to be dispensed comprising: dispensing an aerosol spray which contains ingredient to be dispensed and the flammable propellant in liquid and vapor form; and controlling the relative proportions of liquid flammable propellant and vapor flammable propellant in said spray to provide a non-flammable (as hereinbefore defined) aerosol spray.
12. A method according to claim 11 wherein said aerosol spray is dispensed through a valve means including a vapor phase orifice and a liquid phase orifice, and the relative proportions of liquid flammable propellant and vapor flammable propellant are controlled by providing a ratio of diameter of the vapor orifice to the diameter of the liquid phase orifice of at least 0.6:1.
13. A method according to either of claims 11 and 12 wherein the liquid phase is a
non-aqueous liquid. the liquid being in a single phase. containing the flammable propellant
in liquid form and ingredient to be dispensed.
14. A method of dispensing an aerosol spray substantially as hereinbefore described
with specific reference to the examples. ~~
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74723576A | 1976-12-03 | 1976-12-03 | |
| US84492177A | 1977-10-25 | 1977-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1597147A true GB1597147A (en) | 1981-09-03 |
Family
ID=27114710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4993677A Expired GB1597147A (en) | 1976-12-03 | 1977-11-30 | Aerosol dispenser |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU8031482A (en) |
| GB (1) | GB1597147A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145775A (en) * | 1983-08-31 | 1985-04-03 | Metal Box Plc | Pressurisable containers |
| WO1987002014A1 (en) * | 1985-09-27 | 1987-04-09 | Airspray International B.V. | A spray means for a container for a liquid to be sprayed |
| US5323935A (en) * | 1992-02-21 | 1994-06-28 | The Procter & Gamble Company | Consumer product package incorporating a spray device utilizing large diameter bubbles |
| WO2006122905A2 (en) | 2005-05-19 | 2006-11-23 | Therapicon Srl | A substantially water-free pressurised propellant mixture |
| WO2014071733A1 (en) * | 2012-11-08 | 2014-05-15 | Xu Licai | Metered-dose spray valve |
-
1977
- 1977-11-30 GB GB4993677A patent/GB1597147A/en not_active Expired
-
1982
- 1982-02-09 AU AU80314/82A patent/AU8031482A/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2145775A (en) * | 1983-08-31 | 1985-04-03 | Metal Box Plc | Pressurisable containers |
| US4832236A (en) * | 1983-08-31 | 1989-05-23 | Metal Box Public Limited Company | Pressurizable containers |
| WO1987002014A1 (en) * | 1985-09-27 | 1987-04-09 | Airspray International B.V. | A spray means for a container for a liquid to be sprayed |
| US4850517A (en) * | 1985-09-27 | 1989-07-25 | Airspray International B.V. | Pressurized spray dispenser having valved mixing chamber |
| US5323935A (en) * | 1992-02-21 | 1994-06-28 | The Procter & Gamble Company | Consumer product package incorporating a spray device utilizing large diameter bubbles |
| WO2006122905A2 (en) | 2005-05-19 | 2006-11-23 | Therapicon Srl | A substantially water-free pressurised propellant mixture |
| WO2006122905A3 (en) * | 2005-05-19 | 2007-03-22 | Therapicon Srl | A substantially water-free pressurised propellant mixture |
| WO2014071733A1 (en) * | 2012-11-08 | 2014-05-15 | Xu Licai | Metered-dose spray valve |
Also Published As
| Publication number | Publication date |
|---|---|
| AU8031482A (en) | 1982-06-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921130 |