GB2466720A - Aerosols with Improved Anti-Corrosion Properties - Google Patents
Aerosols with Improved Anti-Corrosion Properties Download PDFInfo
- Publication number
- GB2466720A GB2466720A GB1000107A GB201000107A GB2466720A GB 2466720 A GB2466720 A GB 2466720A GB 1000107 A GB1000107 A GB 1000107A GB 201000107 A GB201000107 A GB 201000107A GB 2466720 A GB2466720 A GB 2466720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerosol
- dip tube
- valve
- oxygen scavenging
- scavenging material
- 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.)
- Withdrawn
Links
- 239000000443 aerosol Substances 0.000 title claims abstract description 76
- 238000005260 corrosion Methods 0.000 title description 14
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000001301 oxygen Substances 0.000 claims abstract description 56
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 56
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000002000 scavenging effect Effects 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 230000037361 pathway Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000003380 propellant Substances 0.000 claims description 11
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 238000009472 formulation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- OJOWICOBYCXEKR-APPZFPTMSA-N (1S,4R)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound CC=C1C[C@@H]2C[C@@H]1C=C2 OJOWICOBYCXEKR-APPZFPTMSA-N 0.000 claims description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 3
- 238000005865 alkene metathesis reaction Methods 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 235000021466 carotenoid Nutrition 0.000 claims description 3
- 150000001747 carotenoids Chemical class 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- SJYNFBVQFBRSIB-UHFFFAOYSA-N norbornadiene Chemical compound C1=CC2C=CC1C2 SJYNFBVQFBRSIB-UHFFFAOYSA-N 0.000 claims description 3
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 3
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910052723 transition metal Inorganic materials 0.000 claims description 2
- 150000003624 transition metals Chemical class 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- RWYFURDDADFSHT-RBBHPAOJSA-N diane Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1.C1=C(Cl)C2=CC(=O)[C@@H]3CC3[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(C)=O)(OC(=O)C)[C@@]1(C)CC2 RWYFURDDADFSHT-RBBHPAOJSA-N 0.000 claims 1
- 239000004711 α-olefin Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 description 13
- -1 polishes Substances 0.000 description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000002516 radical scavenger Substances 0.000 description 7
- 239000003112 inhibitor Substances 0.000 description 6
- 150000001993 dienes Chemical class 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002788 crimping Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002386 air freshener Substances 0.000 description 2
- 239000004411 aluminium Substances 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
- 235000006708 antioxidants Nutrition 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229920001748 polybutylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- YYGNTYWPHWGJRM-UHFFFAOYSA-N (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene Chemical compound CC(C)=CCCC(C)=CCCC(C)=CCCC=C(C)CCC=C(C)CCC=C(C)C YYGNTYWPHWGJRM-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 241000131390 Glis Species 0.000 description 1
- 125000000773 L-serino group Chemical group [H]OC(=O)[C@@]([H])(N([H])*)C([H])([H])O[H] 0.000 description 1
- 101100233118 Mus musculus Insc gene Proteins 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241001275117 Seres Species 0.000 description 1
- BHEOSNUKNHRBNM-UHFFFAOYSA-N Tetramethylsqualene Natural products CC(=C)C(C)CCC(=C)C(C)CCC(C)=CCCC=C(C)CCC(C)C(=C)CCC(C)C(C)=C BHEOSNUKNHRBNM-UHFFFAOYSA-N 0.000 description 1
- 239000004708 Very-low-density polyethylene Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- OENHQHLEOONYIE-UKMVMLAPSA-N all-trans beta-carotene Natural products CC=1CCCC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C OENHQHLEOONYIE-UKMVMLAPSA-N 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- 125000001743 benzylic group Chemical group 0.000 description 1
- 239000011648 beta-carotene Substances 0.000 description 1
- TUPZEYHYWIEDIH-WAIFQNFQSA-N beta-carotene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C)C=CC=C(/C)C=CC2=CCCCC2(C)C TUPZEYHYWIEDIH-WAIFQNFQSA-N 0.000 description 1
- 235000013734 beta-carotene Nutrition 0.000 description 1
- 229960002747 betacarotene Drugs 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N dodecahydrosqualene Natural products CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N linoleic acid group Chemical group C(CCCCCCC\C=C/C\C=C/CCCCC)(=O)O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920003245 polyoctenamer Polymers 0.000 description 1
- 229920003246 polypentenamer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 108700004121 sarkosyl Proteins 0.000 description 1
- KSAVQLQVUXSOCR-UHFFFAOYSA-M sodium lauroyl sarcosinate Chemical compound [Na+].CCCCCCCCCCCC(=O)N(C)CC([O-])=O KSAVQLQVUXSOCR-UHFFFAOYSA-M 0.000 description 1
- 229940045885 sodium lauroyl sarcosinate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 229920001866 very low density polyethylene Polymers 0.000 description 1
- 239000008256 whipped cream Substances 0.000 description 1
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/32—Dip-tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0089—Dispensing tubes
-
- 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 or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
- B65D83/752—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by the use of specific products or propellants
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)
Abstract
An aerosol for domestic care fluids comprising: a body: at least one valve having an inlet located within the body and an outlet located outside of the body defining a fluid pathway therethrough from the interior of the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube in communication with the valve inlet; characterised in that the dip tube comprises oxygen scavenging material. The dip tube may be made of plastics material, which may have the oxygen scavenging material incorporated, or the dip tube may have a coating of the oxygen scavenging material.
Description
AprcasoLs withlQgyeçjAnti-Corrosiqfroerties
Field of the bivention
The present invention ilates to aerosols with mpoved antrcoriosior piopertes and particulaily hut not exclusively, aerosols for use in the field of domestic care productti such as air fresheners, domestic cleaning products, fabric care, waxes, polishes, insecticides, ironing aids, fabric refreshers, carpet c$eaners and the like as well as food products and personal care products.
Backoround Many produces designed for use in household applications uch o5 on hard urfaces foi fah*ic care as carpet. leaneis are solo in aerosol containers few aerosol products are sold in gliss or plastic containers Most containers are metal canisters most canisters are steel usually tin coated othera are aluminium hut aluminium is eçaensive and not considercd to oe environmentally sustainable in comparison to the production of canisters made of other metals such as tin coated steel.
Tin coating protects the metal canisters against rapid corrosion, but tends Ftself to dissolve in queous based formulations With aerosol formulations cor'tainirg less than 53 ppm of wa u corrosion of tin plated canisters is not generally a serious problem However, if the water content or an aerosol product is more than SO opm (ano prtjcularh when greater than 10 porn) problems due to corrosion are more likely to occur. Tin coated metal canisters may also be larouerod with a resin on me inside to provide additional corrosipn protecuon but this adds expense to the manufacturing due to the need for additiona' raw materials and a greater processing complication as it is essential to ensure a suitably uniform application of resin.
The world market trend is to move towards water-based aerosol formulations. This is due mainly to a tegulatory issue the reductiona of the volatile organic content VCC) levels in aerosol pod cts has K \ulved the ieduruon of too solvent level in many products and an increase rn the water content. Currently it is desirable to have a propellant level of below 30% wtv not only to reduce cost but also to comply with increasingly stringent regulatory limits.
Typically corrosion inhibitor systems are deployed in such canisters, especially for tin plated canisters. Examples of these products are borates, benzoates, molybdates, and anionic surfactants (such as sodium lauroyl sarcosinate). However, such corrosion inhibitor systems are notoriously difficult to work into the formulations to be deployed in the canister, are often mçoensive as raw materials and can, in some instances, be associated with undesirable effects to the formulation as the canister ages post-filling.
A further problem with water and non-water based aerosol formulations is the availability of oxygen within the headspace of the canister, the greater the amount of oxygen that is available the greater the likelihood of corrosion within the canister due to oxidaUon thereof.
It is an object of the present invention to improve the known aerosol systems over those cuntntly available.
Summary of Invention
According to a first aspect of the present invention there is provided therefore an aerosol tomprising a body at least ono valve Laying an inlet located 4qthifl the body and an outlet located outside of the body defining a fluid pathway therethrough from the interior of the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube in communication with the valve inlet characterised in that the dip tube comprises oxygen scavenging material.
The deployment of oxygen scavenging material in and/or with and/or on the dip tube is consideud 0 be particularly aovantaqeous foi seveial reasons This oxygen scavenger will act to reduce the overall potential for corrosion inside the aerosol body. The oxygen scavenger will further assist in reducing the level of corrosion inhibitors required in the aerosol body.
Furthermore, the oxygen scavenger may support a reduction in the amount of volatile hydrocarbon propellant required.
The further advantages of the deployment of oxygen scavenger material in/with/on the dip tube is that the life of the product can he extended due the reduced likelihood of corrosion-induced failure, this of course is particularly advantageous for food products such as aerosolised whipped cream as well as domestic care products which may only be extiausted after prolonged storage.
A yot furthei advantage of the deptonentof oxygen suaengor material intwith/on the dip tube is that the potential reduction of corrosion inhibitors in the formulation permits a higher level of purity in the formulas to he cprayed this may result in cleanei smelling fragrances niore natural tasting food products etc. Typically the dip tube a preferably made of a plastics material, such as poiyolefins, and preferably the oxygen scavenging material is incorporated with the plastics material of the dip tube, such as by mixing the scavenger material as a masterhatch or additive in the the dip tube plastics material during the manufacture Thereof.
Alternatively or additionally, the dip tube hed at least portion thereof coated with the oxygen scaening material Preferably substanally all of if e dip tuba surtace is coated w th said scatenge) material The coating ma> be applied by cpray coating the dip tube with the scavenger material possibly in combination with any required binders or adhesives Both tne exterior and interior surface of the dip tube may be coated with said scavenger material, but preferably only the exterior surface may be so coated. Aiternatively the oxygen scavenging material may be made in sheet form and applied to the dip tube in any suitable manner.
The use of coating the dip tube and/or applying sheet form scavenger material riiay be beneficial if the oip tube is not made nut of a plastics material or is made cur of a plsetics material which is not sufficiently compatible with the oxygen scavenger material to permttmixing in the masterha tch.
The quantity of oxygen scavenging material contained within each dip tube may be substantially 0.01-60% w/w of the dip tube, and preferably substantially 1-50% w/w of the dip tube, and more preferably substantially 10-40% w/w or the dip tube and niostprererabl substantially 15-35% tWw of the dip tube.
Alternatively or additionally the dip lube may contain between 0.01 -30% w/v of oxygen scavengirq mater al e 0 0 i-to 30g of scavenging material for each lOOnil of oxyger in the aerosol to be scavenged) ano prefeiably batween 0 i-20'w/' of oxygen scasenging niatanal and more preferably between 0.5-15% w/v ofoxygen scavenging matehal, and most preferably between 1-10%w/v of oxygen scavenging niatehal.
Alternatively or addrUonlly the dip tube may be piovided witn an amount of oxygen scavenging material in the dip tube that is appropriate to scavenge a quantity of oxygen within a container. n one emboorment the dip uhe may ho pioviieo with bulficeiitoxygen scavenger marenal tu scavenge between 0.01-400% Wv of the aerosol body volume, and preferably between 1-200% v/v ef the aerosol body volume, and preferably between 2-100% v/v of the aerosol body volume, and preferably between 5-50% v/v of the aerosol body volume.
The oxygen scavenging matarial that may be useful in the present invention may comprise at least one of the following: sulphates; oxidisable organic compounds; polymers and copolymers of alpha oletlns; butylene copolymers; hydrogenated diene polymers; polyaniides; substituted or unsubstituted ethylen ically unsaturated hydrocarbon and copolymers thereof: polymeric compounds and other polymers prepared by olefin metathesis; diene oligomers; polymers or copolwners derived from dicycloperidiene, norbornadiene, 5-ethylidene-2-norbornene, or other monomers containing more than one carbon-carbon double bond (conjugated or non-conjugated); carotenoids; condensation polymers; unsaturated fatty acids; and/or polymers or copolyrners derived from (meth)ailyl (meth)acrylates.
More specifically the oxygen scavenging material or materials that may be suitable in the present invention may include. oxidisible suiphates such as a sodium sulphate that can he oxidized to a sulphite; oxidisable organic compounds including: benzylic, allyNc and/or tertiary hydrogen containing carbon compounds; polymers and copolymers of alpha oletins such as ow density polyethylene, very low density polyethylene. and ultra low density polyethylene; polypropylene; polybutylene, i.e., poly(1-butene); propylene copolyiners; butylene copoiymers; hydrogenated diene polymers; polyamides such as aromatic polyamides, e.g. meta-xylylene adipamide: substituted or unsubstituted ethylen ically unsaturated hydrocarbon, such as diene polymers such as polyisoprene, polybutadiene (especially I,2poiybutadienes. which are defined as those polybutadrenes possessing greater than or equal to 50% 1)2 microstructure), and copolymers thereof. e.g. styrene-butudiene; polymeric compounds such as polypentenamer, polyoctenamer, and other polymers prepared by olefin metathesis; diene oligomers such as squalene; and polymers or copolymers derived from dicyclopentadiene, norbornadiene, 5-ethylidene-2-norbornene, or other monomers conining more than one carbon-carbon double bond (conjugated or non-conjugated); carotenoids such as beta -carotene; substituted ethylenically unsaturated hydrocarbons such as those with oxygen-containing moieties, such as esters) carboxylic acids: aldehydes, ethers) ketones, alcohols, pereddes, and/or hydrtperoxides, suitable hydrocarbons include condensation polymers such as polyesters derived from monomers containing carbon-carbon double bonds; unsaturated fatty acids such as oleic, ricinoleic, dehydrated ricinoleic, and linoleic acids and derivatives thereof, eg. esters; swtable hydrocarbons also include polymers orcopolymers derived from (meth)allyl (meth)acrylates.
The composition used may also comprise a mixture of tv or more of the substituted or unsubstituted ethylenically unsaturated hydrocarbons described above.
The oxygen scavenging materials used in the present invention may further comprise one or more transition metal catalysts. The catalyst(s) may be provided in the form of a salt, with the metal thereof selected from the first, second or third transition series of the Periodic Table Antioxidants may be included within the formulation deployed in the aerosol to further facilitate or control the initiation of oxygen scavenging properties. The antioxidant within the context of the present rovention may be suitable to inhibit any oxidative degradation and/or cross-linking of polymers.
The aerosol of the present invention may be us with a variety of propellant systems. In one embodiment the prooellant niay be a volatte hydrocarbon such as huiane dnd/or propane In an alternative embodiment the propellant niay be conipressed gas, such as compressed air, compressed nitrogen and/or compressed crude nitrogen.
A further advantage of the aerosol of the present invention may be the possibility to reduce the amount of corrOsion inhibitors used. This not only reduces the cost o raw materials but also makes formulating the composition to be sprayed iess complicated.
Preferably the aerosols of the present invention ac for use as domestic care products such as air fresheners domestic cleaning products fabrccare waxes polishes insectiudes uoriing aids fabric refreshers, carpet cleaners and the like.
The aerosol body of the present invention may comprise three separate parts, a base, a side wall and a top. In general construction the side wall would be fixed to the base by crimping the edge of the base around one end of the side wail followed by the crimping of the edge of the top around the other edge of the side wall, or vice versa. The top is spicatIy provided with a centralisedaperture into which a valve assembly can be connected by crimping an end of the valve assembly to the edge of the aperture in the top.
According to a second arrangement of the present invention there is provided therefore an aerosol comprising: a body havthg at least a base, a side wall and a top; at least one valve having an inlet located within the body and an outlet located outside of the body defining a fluid pathway therethrough from the interior of the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube in communication with the valve inlet; charactarised in that at least one of the base arid/or the side wati and/or the top and/or the valve iritet and/or the dip tube has a surface facing an ntrior of the body comprising oxygen scavenging material Preferably at least two of the base and/or the side wall and/or the top and/or the valve inlet and/or the dip tube has a surtace facing the interior of the body comprising oxygen scavenging material, and even more preferably at least three of the base and/or the side wall and/or the top arid/or the valve inlet and/or the dip tube has a surface facing the interior of the body comprising oxygen %cavenginq maiial and ovsi rnostprererahlyatleastfoui of me babe and/or the side wall and/or iho top and/or the a1ve inlet ardtor he dip tube has a surface facing the inrerior of the body comprising oxygen scavenging niateriai, and ideally the a base and the side wall and the top and the valve iolet and the dip tube has a surface lacing an interior of the body comprising oxygen scavenging material.
The oxygen scavenger matenal is preferably incorpoiatcd into a piabtics material which is coated on the interiorfacing surface of one or more of the base, side wall, top, the valve inlet and the dip tube; the oxygen scavenging material preferably being incorporated wIth the plastics material of the by mixing the scavenger material as a masterbatch or additive in the plastics material during the manufacture thereof. Preferably substantially all of the interior4acing surface(s) is coated with said plastics material. The coating may be applied by spray coating and/or possibly in combination with any required binders or adhesives.
According to a third aspect of the present invenion there is provided therefore a domestic care aerosol comprising: a body; at least one valve having an inlet located within the body andan outlet located outside of the body defining a fluid pathway from the inferior of the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube In communicaVon with the valve inlet; characterised in that the dip tube comprises oxygen scavenging material, Accoiding to a foi.4rth aspect of the present invention there s provided therefore a valve assembly for an aerosol, the valve comprising an inlet intended to be located within a body of an aerosol and an outlet intended to be located outside of the body and a dip tube engaged with the valve inlet. characterised in that the dip kibe comprises oxygen scaveng.ing material.
According to a fifth aspect of the present invention there is provided therefore a dip tube for use with an aerosol valve assembly, wherein the dip tube is provided with a substantially elongate hollow cylindrical structure and the dip tube comprises oxygen scavenging material.
According to a sixth aspect of the present invention there is provided therefore a method of reducing the quantity of oxygen in an aerosol canister, the method comprises the steps of filling *the canister with the composition to be sprayed from the canister is use, and then; sealing the canister using a valve assembly according to the third aspect of the present invention secured to a canister body and filing the canister with propellant; or filling the canister with propellant and then securing a vaive assembly according to the third aspect of the present invention to a canister body of the aerosol.
Description of an Embodtinent
An embodiment of the invention will now be described by way of exam plc only, An aerosol geneially compnses a canister body made of thin sheet matenal sde walls orererably tin coated sheet steel The side walls aie shaped into a cylinder and sealea along Vie adjoin ing edge ano is sealed aiound s bnttoni edge with a deformation cap The deformation cap is concaved shaped dome which is secured to the side walls to extend into the interior of the body of the aerosol body. The deformation cap is a safety feature built into aerosols to provide the canister with an emergency means to increase its volume should the intemal pressure in the canister surpass a predefined pressure in order to counteract the high internal pressure. The deformation cap is designed to fail at a predefined pressure and deform from a concave shape to a convex sha?e tous increasing the intei nal volume of the aerosol bocy and reducing the internal pressure of the aerosol.
The aerosol body is sealed at i:ts top edge by being sealed to a valve. The valve is generally piovided with an inlet located within the body and an outkt located outside of the oodv o defuie a fluid pathway therethrough from the interior of the body to the exterior of the aerosol. The valve is further provided with a valve actuator engaged with the valve outlet, this is capable of being actuated by a user or automated mechanical means to open the valve to release the contunts of the aerosol into the surround environment and, once actuation is ceased, the actuator is operable to dose the valve to prevent the continued release of the aerosol contents.
Connected to the valve inlet a a dio tube which may be e'ongate sith a hollow crnss section the dip tube may extends into the interior of the aerosol, typically such that it touches or is adjacent to the deformation cap. The dip tube generally asssts preventing the composition from blocking up the valve and restricting the flow of the composition from the aerosol.
Oxygen scavenging material is deployed in, on or With the dip tube to act to reduce the overall potential for corrosion insc'e the aerosol body The oxygen scavengei matenal may assrt in reducing the level of corrosion inhibitors required in the aerosol body. Furthermore, the oxygen scavenger may support a reduction in the amount of volatile hydrocarbon propellant required.
Deployment of oxygen scavenger material in, on or with the dip tube is further considered to be advantageous as it significantly simplifies the manufacturing process. No additional materiats are required, so no additional manufacturing steps. Furthermore, such deployment also prevents the scavenging material from interfering with the performance of the aerosol.
The dip tube is commonly made of a plastics material and the oxygen scavenging material may be incorporated with the plastics material of the dip tube, such as by mixing the scavenger material as a masterbatch or additive in the dip tube plastics material during the manufacre thereof.
Alternatively or additionally the dip tube hasa portion thereof coated with the oxygen scavenomg inatonal The particular oxygen scavenging material selected can be tuned such that it is fit for the performance of the oaincular aerosol ciuJer and uomposition loaded therein Foi instdnce in a 400m1 ae osol canister using buar piopellant would on fdn g with composrion typacally have a head space within the canister which could contain approximately 20m1 of oxygen. therefore, the oxygen scavonqinq matenal in the dip tube should be capable of scaven,ng the majorit toall of this oxygen.
Regulations are actrg to reduce the amount of hyorocarban pipellantc and therefore using alternative propellants are of increasing interest. Compressed gas is inexpensive but fraught with problems, not just the problems with oxygen being present in the canister. Using compressed nitrogen solves this latter problem but it is expensive to manufacture. However, compressed crude nitrogen is significantly less expensive to produce and is more readily available, as such, the dcploymcnt of oxygen scavenging matenal in the dip tube makes the uso of crude nitrogen a more realistic commercial possibility.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or simUar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generc seres of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification ncluoing any accompanyinq claims nbstiact and drawing) or to any novel o e or any novel combination, of the steps of any method or process so disclosed,
Claims (16)
- Claims An aerosol ionipnsing body at leat one valve naving an inlet located within thc iody and an outlet located o itsido of thu body oeIining a fluid oatnway therethrough from the utenul or the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube in communication with the valve inlet charactehsed in that the dip tube comprises oxygen scavenging material.
- 2 An aewsol accord!ng to chim 1 wneen the oxygen scavcng n mate al is incorporated with the plastics material of the dip tube.
- 3. An aerosol according to claim 1 or claim 2, wherein the dip tube has at least a portion thereof cOated with the oxygen scavenging material.
- 4. An aerosol according to claim 3, wherein the exterior and interior surface of the dip tube s coated with said scaverier material.
- 5. An aerosol according to any preceding claim, wherein the quantity of oxygen scavenging material contained within each dip tube is substantiahy 0.01-60% w/w of The dip tube, and pre1eraoly substantIally -50% w/w of the dip tube and more preferaoly sLbstanTnlly iii 40% ww of the dip tube and most preferably substantially 15-35% w'w of The dip tube
- 6. An aerosol according to any preceding claim, wherein the dip tube contains between 0.01-30% w/v of oxygen scavenging material, and preferably between 0.1-20% w/v of oxygen scavenging matenal, and more preferably between 0.5-15% w/v of oxygen scavenging material, and most preferably between 1-10% w/v of oxygen scavenging material.
- 7. An aerosol according to any preceding cla&n, wherein the dip tube is provided with sufficient oxygen scavenger marial to scavenge between 0.01 -400% v/v of the aerosol body volume, and preferably between 1-200% v/v of the aerosol body volume, and preferably between 2-100% wv of the aerosol body volume, and preferably between 5-50% wV of the aerosol body volume.
- 8. An aerosol according to any preceding claim, wherein the oxygen scavenging material in the prescnt invention conpnses at least ore of the following uxidisable ciganic compounds oolyners and copolynleN of alpha olefins butylene copolymers hydroqenated thene polymers polyamides; substituted or unsubstituted ethylenically unsaturated hydrocatbon and copolymers thereof; polymeric compounds and other polymers prepared by olefin metathesis; diane ohgomers; polymers or copolyniers derived from dicyclopentadiene, norbornadiene, 5-ethylidene- 2-norbornene, or other monomers containing more than one carbon-carbon double bond (conjugated or non-conjugated); carotenoids; condensation polymers; unsaturated fatty acids; and/or polymers or copolymers derived from (meth)all1 (meth)acrylates.
- 9. An aerosol according to any preceding ciahri, wherein the oxygen scavenging material(s) used in the present invention further comprises one or more transition metal catalysts.
- 10. An aerosol according to any preceding claim, wherein antioxidants are included within the formulation deployed in the aerosol.
- 11. An aenDsol according to any preceding claim, wherein the propellant compressed nitrogen and/or compressed crude nitrogen.
- 12. An aerosol according to any preceding clam, wherein the aerosol domestic care product aerosol.
- 13. A domestic care aerosol comprising: a body; at least one valve having an inlet located within the body and an outlet located outside of the body defining a fluid pathway from the interior of the body to the exterior of the aerosol; a valve actuator engaged with the valve outlet; a dip tube in comrnunicaUon with the valve inlet; characterised in that the dip tube comprises oxygen scavenging material.
- 14. A valve assembly for an aerosol, the valve compnsing an inlet intended to he located within a body of an aerosol and an oedet intended to be located outside of the body and a dip tube engaged with the valve inlet. characterised in that the dip tube comprises oxygen scavenging material.
- 15. A dip tube for use with an aerosol valve assembly, wherein the dip tube is provided with a substantially elongate hollow cylindrical structure and the dip tube coniprises oxygen scavenging material.
- 16. A method of reducing the quantity of oxygen in an aerosol canister, the method comprises the steps of filling the canister with the composition to be sprayed from the canister is use, and then: sealing the canister using a valve assembly according to claim 14 secured to a canister body and filing the canister with propellant; or fifing the canister with propellant and then securing a valve assembly according to claim 14 to a canister body of the aerosol.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0900116A GB0900116D0 (en) | 2009-01-06 | 2009-01-06 | Aerosols with improved anti-corrosion properties |
| GB0911817A GB0911817D0 (en) | 2009-07-08 | 2009-07-08 | Aerosols with improved anti-corrosion properties |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201000107D0 GB201000107D0 (en) | 2010-02-17 |
| GB2466720A true GB2466720A (en) | 2010-07-07 |
Family
ID=41796008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1000107A Withdrawn GB2466720A (en) | 2009-01-06 | 2010-01-06 | Aerosols with Improved Anti-Corrosion Properties |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2466720A (en) |
| WO (1) | WO2010079321A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048963A2 (en) * | 1998-03-25 | 1999-09-30 | Chevron Phillips Chemical Company Lp | Oxygen scavengers with reduced oxidation products for use in plastic films and beverage and food containers |
| WO1999058415A1 (en) * | 1998-05-13 | 1999-11-18 | Color Access, Inc. | Pump package |
| WO2005005264A2 (en) * | 2003-06-30 | 2005-01-20 | Diamond George B | Reduced voc two-phase aerosol space spray products |
| WO2007004508A1 (en) * | 2005-07-06 | 2007-01-11 | Nihon Yamamura Glass Co., Ltd. | Oxygen-absorptive pouch |
| WO2007046972A1 (en) * | 2005-10-17 | 2007-04-26 | Dispensing Patents International, Llc | Aerosol container with integral mounting cup and anti-clog valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2666789B1 (en) * | 1990-09-13 | 1992-12-04 | Oreal | PROCESS FOR BLEEDING THE DIVER TUBE AND / OR THE INTERNAL SPACE OF A PRESSURIZED CONTAINER VALVE AND CORRESPONDING CONTAINER. |
| US5527577A (en) * | 1993-06-22 | 1996-06-18 | Aptar Group, Inc. | Flexible eduction tube for hand dispenser |
-
2010
- 2010-01-06 GB GB1000107A patent/GB2466720A/en not_active Withdrawn
- 2010-01-06 WO PCT/GB2010/000004 patent/WO2010079321A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999048963A2 (en) * | 1998-03-25 | 1999-09-30 | Chevron Phillips Chemical Company Lp | Oxygen scavengers with reduced oxidation products for use in plastic films and beverage and food containers |
| WO1999058415A1 (en) * | 1998-05-13 | 1999-11-18 | Color Access, Inc. | Pump package |
| WO2005005264A2 (en) * | 2003-06-30 | 2005-01-20 | Diamond George B | Reduced voc two-phase aerosol space spray products |
| WO2007004508A1 (en) * | 2005-07-06 | 2007-01-11 | Nihon Yamamura Glass Co., Ltd. | Oxygen-absorptive pouch |
| WO2007046972A1 (en) * | 2005-10-17 | 2007-04-26 | Dispensing Patents International, Llc | Aerosol container with integral mounting cup and anti-clog valve |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201000107D0 (en) | 2010-02-17 |
| WO2010079321A1 (en) | 2010-07-15 |
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| Date | Code | Title | Description |
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| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |