WO1994001511A1 - Formulation en aerosol sous-pression - Google Patents
Formulation en aerosol sous-pression Download PDFInfo
- Publication number
- WO1994001511A1 WO1994001511A1 PCT/GB1993/001419 GB9301419W WO9401511A1 WO 1994001511 A1 WO1994001511 A1 WO 1994001511A1 GB 9301419 W GB9301419 W GB 9301419W WO 9401511 A1 WO9401511 A1 WO 9401511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aerosol formulation
- formulation according
- weight
- per cent
- carrier
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/30—Materials not provided for elsewhere for aerosols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/046—Aerosols; Foams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q15/00—Anti-perspirants or body deodorants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
Definitions
- the present invention relates to propellants used in pressurised spray containers particularly those of the type known as aerosol cans.
- liquefied propellants which have the ability to change from the gaseous to liquid state (below the critical temperature) when pressure is applied.
- liquefied propellants are hydrocarbon and chlorofluorocarbons.
- the liquefied propellant is contained in the packaging and it divides between the liquid and gaseous phases, with the liquid phase forming a reserve. On spraying the container, part of the gaseous phase is expelled. Immediately a part of the liquid phase vaporises, returning the internal pressure almost to its original starting pressure. The pressure remains substantially constant throughout the life of the container.
- the pressurised containers are equipped with a dispensing head and valve and pressurised with the liquefied propellant.
- the volatilisation of the dispensed liquid propellant particles assists the dispensed product to form aerosol droplets.
- This change from the liquid to gaseous phase may also have a self cleaning action to remove any residual concentrate which may have remained within the expansion chamber and channels of the dispensing head after spraying has ceased.
- hydrocarbon propellants are by nature flammable and the possibility of an explosion exists if the hydrocarbon/air ratio is between the upper and lower explosive limits. Products using hydrocarbon propellants therefore require careful handling, storage and transportation. Also, for environmental reasons, the future use of hydrocarbon propellants may be restricted.
- Nitrogen is suitable for use as a compressed gas propellant, it is non toxic, non-flammable and environmentally friendly. There are, however, some disadvantages to using nitrogen as an aerosol propellant. Because the nitrogen is only present as a gas, there is no liquid state present (unlike the liquefied propellants) to form a pressure reserve. Typically only 1 - 2 g of nitrogen can be filled into an aerosol package. Any misuse of the aerosol package resulting in loss of the nitrogen propellant may prevent total evacuation of the contents.
- Nitrogen propellant systems rely on the use of mechanical means involving the use of small diameter channels in the dispensing head to create the aerosol particles. This is because there is no liquid to gas transformation as with the liquefied propellants. Nitrogen does not have the self cleaning action of the the liquefied propellants and therefore any product remaining in the channels after spraying will quickly lead to impaired performance and may even result in total blockage.
- the nitrogen is added to the aerosol container by filling to a typical pressure of 120 psig. As the contents are dispensed there is a pressure drop within the can to around 30 - 40 psig after total evacuation of the contents. This pressure drop may affect the break up characteristics of the valve with a gradual transition from fine to coarse aerosol particles as the pressure decreases.
- the present invention therefore provides a pressurised aerosol formulation in a pressurised container which is in the form of a compressed gas, a liquefied hydrocarbon propellant and also active compound(s) and carrier(s) which are in the form of a suspension or a solution and which contains at least 0.05 per cent by weight of compressed gas and at least 0.5 per cent by weight of liquefied hydrocarbon propellant.
- Suitable compressed gases are nitrogen, carbon dioxide, compressed air, oxygen, xenon, argon or mixtures thereof.
- Suitable liquefied hydrocarbon propellants are methane, ethane, butane, propane, isobutane, dimethyl ether, pentane, hexane, heptane, octane, nonane, decane, chlorodifluoromethane, 1,1 dichloro, 2,2,2 trifluroethane, 1,2 dichloro, 2,2, difluoroethane, 2 chloro, 2,2 difluoroethane, 1,2,2,2 tetrafluoroethane, 2,2,2 trifluoroethane, 1,1,1 trichloroethane, dichloromethane, or mixtures thereof.
- Suitable carriers are volatile compounds, for example alcohols, and include ethyl alcohol, n-propanol, iso-propanol, n-pentane, iso-pentane, water, acetone, ethyl, methyl ketone, diethyl ether, volatile silicone compounds, fluoro surfactants, dimethoxy methane, diethyl carbonate, methoxy acetone, hydroxy acetone, methyl isopropyl ketone, diethyl ketone, diisopropyl ketone, dipropyl ketone, diacetone alcohol, or mixtures thereof.
- the formulation according to this invention can be formulated with cosmetic, hygienically or medicinally active constituents (active compounds) and give formulations for different purposes eg. cosmetic spray.
- Active compounds which can be contained in the formulation are eg. hair spray resin, hair care substances, deodorants, antiperspirants, perfume, bactericidal agents and fungicides.
- Such actives being 2,4,4'trichloro-2'-hydroxydiphenylether which is sold by Ciba Geigy and is known internationally under the non-proprietary name of Triclosan, and octylamide/ acrylate/ butylaminoethyl methacrylate, a hairspray resin which is sold by National Starch Ltd. and is sold under the name Amphomer LV71. It may also be necessary to include in certain formulations other ingredients such are conventional in the art, for example neutralisers for hairspray resins such as amino-methylpropanol, otherwise known as AMP.
- AMP neutralisers for hairspray resins
- a typical aerosol formulation preferably contains as propellant gases 0.05 to 2.5 per cent by weight of nitrogen and 1.0 to 12.0 per cent by weight of liquified hydrocarbon, the percentages by weight being based on the total weight of the constituents of the filled container.
- the aerosol formulation preferably contains 80 - 95 per cent by weight of a carrier, suitably an organic carrier for the propellant gases and/or active compound(s), the percentages by weight being based on the total weight of the constituents of the filled container.
- a carrier suitably an organic carrier for the propellant gases and/or active compound(s)
- the aerosol formulation is characterised in that it contains 0.7 - 1.4 per cent by weight of nitrogen, 4 - 9 per cent by weight of liquified hydrocarbon, 85 - 93 per cent by weight of an organic carrier, suitably alcohol, and 1 to 4 per cent of active compound by weight.
- an organic carrier suitably alcohol
- the nature and the amount of the required active compound, organic solvent for the propellant gases and/or active compound, and nitrogen are so matched Qualitatively and quantitatively in a sample batch taking into account the intended use and taking into account the ranges given above for the percentages by weight that a suspension or solution is obtained which can be sprayed without blocking nozzles or channels as a ready to use aerosol.
- the present invention also provides a process for the manufacture of an aerosol formulation which is characterised in that the active compound(s), and carrier(s) are processed such that a requisite partial amount is filled into a pressurised spray container and subsequently sealed with a valve. After the liquefied hydrocarbon propellant and nitrogen have been filled through the valve into the container under pressure, the liquid product is in the form of a suspension or homogeneous solution under a pressure of about 120 psig.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Cosmetics (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
L'invention se rapporte à une formulation en aérosol sous-pression, contenue dans un récipient sous-pression, et se présentant sous la forme d'un gaz comprimé, d'un gaz propulseur hydrocarbure liquéfié ainsi que d'un de composé(s) actif(s) et de porteur(s) qui se présentent sous la forme d'une suspension ou d'une solution, et qui contient au moins 0,05 pour cent en poids de gaz comprimé, et au moins 0,5 pour cent en poids de gaz propulseur hydrocarbure liquéfié.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929214765A GB9214765D0 (en) | 1992-07-11 | 1992-07-11 | Pressurised aerosol formulation |
GB9214765.1 | 1992-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994001511A1 true WO1994001511A1 (fr) | 1994-01-20 |
Family
ID=10718565
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1993/001419 WO1994001511A1 (fr) | 1992-07-11 | 1993-07-06 | Formulation en aerosol sous-pression |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB9214765D0 (fr) |
WO (1) | WO1994001511A1 (fr) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997002381A1 (fr) * | 1995-07-03 | 1997-01-23 | R & C Products Pty. Limited | Composition facilitant le repassage |
DE19616573A1 (de) * | 1996-04-25 | 1997-11-06 | Ritzau Pari Werk Gmbh Paul | Treibmittelmischungen und Aerosole für die Mikronisierung von Arzneimitteln mit Hilfe dichter Gase |
WO1998034595A1 (fr) * | 1997-02-05 | 1998-08-13 | Jago Research Ag | Formulations medicales pour aerosols |
AU697930B2 (en) * | 1995-07-03 | 1998-10-22 | R & C Assets Pty Limited | Ironing aid |
WO2000054585A1 (fr) * | 1999-03-16 | 2000-09-21 | Paulo Arnaldo Martins Cosso | Composition germicide et procede de traitement de l'espace vital |
WO2002003927A2 (fr) * | 2000-07-07 | 2002-01-17 | Cognis Deutschland Gmbh & Co. Kg | Aerosols |
US6475467B1 (en) | 1998-08-04 | 2002-11-05 | Jago Research Ag | Medicinal aerosol formulations |
US6585958B1 (en) | 1998-07-24 | 2003-07-01 | Jago Research Ag | Medicinal aerosol formulations |
WO2009151572A3 (fr) * | 2008-06-13 | 2010-07-29 | S. C. Johnson & Son, Inc. | Compositions contenant un agent actif solvaté approprié pour la distribution comme aérosol de gaz comprimé |
ES2457720A1 (es) * | 2012-10-25 | 2014-04-28 | Gases Research Innovation & Technology, S.L. | Composición propelente licuada para aerosoles |
WO2022012947A1 (fr) * | 2020-07-17 | 2022-01-20 | Unilever Ip Holdings B.V. | Produit aérosol |
US20220354754A1 (en) * | 2021-05-03 | 2022-11-10 | The Procter & Gamble Company | Foam compositions |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3387425A (en) * | 1964-12-08 | 1968-06-11 | Allied Chem | Process for preparing aerosol packages |
FR2217405A1 (fr) * | 1973-02-14 | 1974-09-06 | Johson Et Son Inc |
-
1992
- 1992-07-11 GB GB929214765A patent/GB9214765D0/en active Pending
-
1993
- 1993-07-06 WO PCT/GB1993/001419 patent/WO1994001511A1/fr active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3387425A (en) * | 1964-12-08 | 1968-06-11 | Allied Chem | Process for preparing aerosol packages |
FR2217405A1 (fr) * | 1973-02-14 | 1974-09-06 | Johson Et Son Inc |
Non-Patent Citations (4)
Title |
---|
DATABASE WPI Week 8517, Derwent Publications Ltd., London, GB; AN 85-102733 * |
DATABASE WPI Week 9246, Derwent Publications Ltd., London, GB; AN 92-375607 * |
PATENT ABSTRACTS OF JAPAN vol. 006, no. 085 22 May 1982 * |
PATENT ABSTRACTS OF JAPAN vol. 011, no. 133 25 April 1987 * |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5695677A (en) * | 1995-07-03 | 1997-12-09 | R & C Products Pty Limited | Ironing aid |
AU697930B2 (en) * | 1995-07-03 | 1998-10-22 | R & C Assets Pty Limited | Ironing aid |
WO1997002381A1 (fr) * | 1995-07-03 | 1997-01-23 | R & C Products Pty. Limited | Composition facilitant le repassage |
DE19616573A1 (de) * | 1996-04-25 | 1997-11-06 | Ritzau Pari Werk Gmbh Paul | Treibmittelmischungen und Aerosole für die Mikronisierung von Arzneimitteln mit Hilfe dichter Gase |
DE19616573C2 (de) * | 1996-04-25 | 1999-03-04 | Pari Gmbh | Verwendung unterkritischer Treibmittelmischungen und Aerosole für die Mikronisierung von Arzneimitteln mit Hilfe dichter Gase |
US6461591B1 (en) * | 1997-02-05 | 2002-10-08 | Jago Research Ag | Medical aerosol formulations |
WO1998034595A1 (fr) * | 1997-02-05 | 1998-08-13 | Jago Research Ag | Formulations medicales pour aerosols |
US6585958B1 (en) | 1998-07-24 | 2003-07-01 | Jago Research Ag | Medicinal aerosol formulations |
US6475467B1 (en) | 1998-08-04 | 2002-11-05 | Jago Research Ag | Medicinal aerosol formulations |
WO2000054585A1 (fr) * | 1999-03-16 | 2000-09-21 | Paulo Arnaldo Martins Cosso | Composition germicide et procede de traitement de l'espace vital |
WO2002003927A3 (fr) * | 2000-07-07 | 2002-09-12 | Cognis Deutschland Gmbh | Aerosols |
WO2002003927A2 (fr) * | 2000-07-07 | 2002-01-17 | Cognis Deutschland Gmbh & Co. Kg | Aerosols |
US7427406B2 (en) | 2000-07-07 | 2008-09-23 | Cognis Deutschland Gmbh & Co. Kg | Aerosols |
WO2009151572A3 (fr) * | 2008-06-13 | 2010-07-29 | S. C. Johnson & Son, Inc. | Compositions contenant un agent actif solvaté approprié pour la distribution comme aérosol de gaz comprimé |
US8178078B2 (en) | 2008-06-13 | 2012-05-15 | S.C. Johnson & Son, Inc. | Compositions containing a solvated active agent suitable for dispensing as a compressed gas aerosol |
AU2009258191B2 (en) * | 2008-06-13 | 2012-11-08 | S.C. Johnson & Son, Inc. | Compositions containing a solvated active agent suitable for dispensing as a compressed gas aerosol |
CN102065824B (zh) * | 2008-06-13 | 2013-06-19 | 约翰逊父子公司 | 适合于作为压缩气体气溶胶分散的包含溶剂化活性剂的组合物 |
US9044414B2 (en) | 2008-06-13 | 2015-06-02 | S.C. Johnson & Son, Inc. | Compositions containing a solvated active agent for dispensing as a gas aerosol |
ES2457720A1 (es) * | 2012-10-25 | 2014-04-28 | Gases Research Innovation & Technology, S.L. | Composición propelente licuada para aerosoles |
WO2022012947A1 (fr) * | 2020-07-17 | 2022-01-20 | Unilever Ip Holdings B.V. | Produit aérosol |
US20220354754A1 (en) * | 2021-05-03 | 2022-11-10 | The Procter & Gamble Company | Foam compositions |
Also Published As
Publication number | Publication date |
---|---|
GB9214765D0 (en) | 1992-08-26 |
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