EP2013114A1 - Druckbehälter mit polyethylenglykolen und kohlendioxid als treibmittel - Google Patents
Druckbehälter mit polyethylenglykolen und kohlendioxid als treibmittelInfo
- Publication number
- EP2013114A1 EP2013114A1 EP07720118A EP07720118A EP2013114A1 EP 2013114 A1 EP2013114 A1 EP 2013114A1 EP 07720118 A EP07720118 A EP 07720118A EP 07720118 A EP07720118 A EP 07720118A EP 2013114 A1 EP2013114 A1 EP 2013114A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propellant
- polyethylene glycol
- pressure vessel
- carbon dioxide
- pressure
- 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.)
- Granted
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 239000003380 propellant Substances 0.000 title claims abstract description 85
- 229920001223 polyethylene glycol Polymers 0.000 title claims abstract description 74
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 49
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 49
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 48
- 239000007791 liquid phase Substances 0.000 claims abstract description 47
- 239000012071 phase Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 23
- 239000000443 aerosol Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 24
- 239000004604 Blowing Agent Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 229940068918 polyethylene glycol 400 Drugs 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000013270 controlled release Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 24
- 238000011049 filling Methods 0.000 description 10
- 239000012528 membrane Substances 0.000 description 10
- 239000006184 cosolvent Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229920002556 Polyethylene Glycol 300 Polymers 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 2
- 238000011067 equilibration Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- -1 fluorine-chlorine hydrocarbons Chemical class 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000569 multi-angle light scattering Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- BLUGYPPOFIHFJS-UUFHNPECSA-N (2s)-n-[(2s)-1-[[(3r,4s,5s)-3-methoxy-1-[(2s)-2-[(1r,2r)-1-methoxy-2-methyl-3-oxo-3-[[(1s)-2-phenyl-1-(1,3-thiazol-2-yl)ethyl]amino]propyl]pyrrolidin-1-yl]-5-methyl-1-oxoheptan-4-yl]-methylamino]-3-methyl-1-oxobutan-2-yl]-3-methyl-2-(methylamino)butanamid Chemical compound CN[C@@H](C(C)C)C(=O)N[C@@H](C(C)C)C(=O)N(C)[C@@H]([C@@H](C)CC)[C@H](OC)CC(=O)N1CCC[C@H]1[C@H](OC)[C@@H](C)C(=O)N[C@H](C=1SC=CN=1)CC1=CC=CC=C1 BLUGYPPOFIHFJS-UUFHNPECSA-N 0.000 description 1
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- 208000007934 ACTH-independent macronodular adrenal hyperplasia Diseases 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- RFHAOTPXVQNOHP-UHFFFAOYSA-N fluconazole Chemical group C1=NC=NN1CC(C=1C(=CC(F)=CC=1)F)(O)CN1C=NC=N1 RFHAOTPXVQNOHP-UHFFFAOYSA-N 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 238000012417 linear regression Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000001131 transforming effect Effects 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
- B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
- B65D83/64—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons
- B65D83/643—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by pistons the propellant being generated by a chemical or electrochemical reaction
-
- 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
- B65D83/141—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant specially adapted for specific contents or propellants
-
- 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
- B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
- B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
- B65D83/625—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like the propellant being generated by a chemical or electrochemical reaction
Definitions
- the present invention relates to pressure vessels, in particular aerosol cans, in which the propellant and the pressurized material are present in separate chambers.
- Spray container containing inside a flexible bag with the material to be sprayed, and wherein the blowing agent fills the space between this bag and the actual container.
- the bag With increasing emptying of the container of material to be sprayed, the bag is compressed by the action of the propellant and thus ensures that the remaining portion of the material to be sprayed is still under pressure.
- the term "bag in a can" is often used in the art. Examples of applications
- the two-chamber containers of this first type available on the market of the present application are those containers marketed by the assignee of the present application under the trade names LamiPACK, COMPACK, MicroCOMPACK, and AluCOMPACK.
- ⁇ -in-a-can Another category of such containers are those known in the art as "can-in-a-can".
- a second, inner box is provided which gradually folds up under the action of the propellant and with increasing emptying.
- Another category of dual chamber containers are those in which the propellant presses from below onto a movable piston located in the container.
- This piston is typically initially mounted near the container bottom; The propellant is located in the cavity between the container bottom and the piston.
- the material to be sprayed is located above the piston in the remaining cavity of the container. With increasing emptying of the container from the material to be sprayed, the piston slides upward through the action of the propellant within the container and thus ensures that the remaining portion of the product to be sprayed is still under pressure.
- piston-containing pressure vessels are sold for example by the United States Can Company.
- the blowing agents used in the Zweisch- described above are typically gaseous carbon dioxide, air, nitrogen, liquefied gases such as propane and butane, fluorine-chlorine hydrocarbons or fluorocarbon substances.
- Object of the present invention is to provide an improved pressure vessel of the type mentioned.
- a pressure vessel for receiving a pressurized gaseous, liquid or finely divided material comprising a wall with a wall inside, which defines an interior of the pressure vessel; a separating part which is located in the inner space and divides the inner space into a storage chamber and into a propellant chamber, wherein the storage chamber comprises the goods and the propellant chamber surrounds a propellant.
- the separating part for liquid-tight subdivision in the storage chamber and propellant chamber and, under the action of the blowing agent, for varying the volume ratio between the storage chamber and the propellant chamber is capable of the propellant chamber;
- the pressure vessel is characterized in that the propellant consists of: a) a gas phase comprising carbon dioxide, and b) a liquid phase, the len one of the Polyethylenglyko- and its their (Ci-C 4) monoethers and (Ci- C 4 ) Diethern selected compound and dissolved therein carbon dioxide.
- FIG. 1 shows a pressure vessel according to the invention with a movable piston in two different filling states.
- Fig. 2.3 show two further inventive
- Pressure tank with inner bag in two different filling states.
- FIGS. 7, 8 show the dependence of the pressure in the propellant chamber on the sprayed volume of the material to be sprayed.
- the pressure vessels according to the invention comprise a propellant with a liquid phase which comprises a polyethylene glycol and / or a (C 1 -C 4 ) monoether and / or a C 1 -C 4 ) diether of a polyethylene glycol.
- the polyethylene glycols or their ethers may be present as pure substances; As a rule, however, the polyethylene glycols or their ethers, as a result of their preparation, are mixtures of compounds having different, approximately normally distributed molecular weights.
- the MoIe- be kularmeaninge of mixtures of polyethylene glycols or their ethers as mass means weights M w:
- M w is an index running across all molecular types of the polyethylene glycol and / or polyethylene glycol monoether and / or polyethylene glycol diether
- Ni or Mi are the number of molecules in the i-th molecular species and the molecular weight of the i-th molecular species, respectively.
- This average molecular weight M w can, as is customary in the art, be measured by light scattering measurements using the principle of "Multi Angle Light Scattering" (MALS) with laser light. solutions of the polyethylene glycol or polyethylene glycol ether are determined. The required measuring devices are known and commercially available. The determination of the M w from the obtained scattering measurements can be made using the Zimm equation and the associated Zimm diagram.
- the M w of the polyethylene glycol and / or the ether thereof can be selected depending on the ambient temperatures at which the pressure vessel according to the invention is to be used: at higher ambient temperatures, a higher molecular weight polyethylene glycol and / or a higher molecular weight polyethylene glycol ether can be used; wherein the polyethylene glycol should be liquid at the desired ambient temperature.
- the following table lists the typical melting intervals of some representative polyethylene glycols which can be used according to the invention, depending on their molecular weight:
- the M w of the polyethylene glycol and / or Polyethylengly- colmonoethers and / or Polyethylenglycoldiethers preferably in the range of 200 to 600 daltons, more preferably in the range of about 250 to about 390 daltons; most preferably it is about 300 daltons.
- polyethylene glycol monoethers and polyethylene glycol diethers are, for example, the compounds listed in the reference of "Canadian Journal of Chemical Engineering" in Table 1 mentioned in the beginning. Preferably, diethers are used.
- the liquid phase of the propellant may, if desired, contain a cosolvent.
- cosolvents may be antifreeze such as dipropylene glycol or ethylene glycol; it may also be viscosity modifying additives such as water; it may also be foam inhibitors such as N-octanol.
- cosolvents if they are to be present, are preferably added in amounts of 0.1 to 5 percent by weight, based on the liquid, still carbon dioxide-free phase.
- the liquid phase contains only just one polyethylene glycol having M w in the ranges indicated above, if desired in combination with one of the cosolvents mentioned above.
- the liquid phase contains only just a polyethylene glycol diether with M w in the ranges indicated above, if desired in combination with one of the cosolvents mentioned above.
- the polyethylene glycol diether is particularly preferably a polyethylene glycol 1,4-dibutyl ether, such as "Polyglycol BB 300" marketed by Clariant.
- oxide is preferably at least 90 percent by weight, based on the liquid phase, more preferably at least 95 percent by weight.
- the ratio of the partial pressure of the carbon dioxide to the total pressure is preferably at least 0.9, more preferably at least 0.95 and particularly preferably at least 0.98.
- the blowing agent is preferably prepared before, before filling in the inventive pressure vessel.
- a liquid phase comprising a selected from the polyethylene glycols and their (C 1 - C 4 ) monoethers their (Ci-C 4 ) Diethern selected compound, are subjected to carbon dioxide (if desired, the pressure reactor before evacuated with carbon dioxide to remove air debris).
- carbon dioxide if desired, the pressure reactor before evacuated with carbon dioxide to remove air debris.
- the blowing agent is equilibrated, which can be checked by adjusting the pressure constancy.
- the initial pressure in the pressure vessel it does not matter in which ratio of liquid phase to gas phase the propellant is introduced into the propellant chamber; the initial pressure in the chamber is equal to the pressure at which the propellant is introduced into the chamber.
- the pressure drop in the propellant chamber with increasing sprayed volume .DELTA.V is determined by the initial volume of the liquid phase and by the total propellant (ie the initial volume of the propellant chamber), the number of moles of all constituents of the propellant (these also determine the ratio of liquid phase to gas phase) and depends on the temperature:
- V ⁇ 0 is the initial volume of the total propellant, ie, the initial volume of the propellant chamber ;
- N g is the total number of carbon dioxide summed over the liquid phase and gas phase of the propellant
- Ni is the sum of the moles of all liquid components
- Phase of the propellant is (remains constant, since in the novel pressure vessels no liquid phase is released);
- the function (Ia) can be determined experimentally by means of a simple measuring apparatus for each pressure vessel and propellant according to the invention (see below in the description of FIGS. 7 and 8).
- the inverse function (Ib) can be:
- P Q0 is the partial pressure of the carbon dioxide in the gas phase of the propellant
- H and H 0 are characteristic constants for the respective liquid phase and temperature.
- ⁇ i g is the number of moles of carbon dioxide in the liquid phase of the blowing agent
- qti g is the number of moles of carbon dioxide in the gas phase of the propellant
- - N 9 and N 1 have the meaning given above.
- - a and b are van der Waals coefficients of carbon dioxide; ie 3.96 x 10 "1 Pa m 3 and 42.69 x 10 " 6 mVmol.
- iVo is the volume of the still carbon dioxide-free liquid phase of the propellant (this value is a constant); and - N g , g i g , x n g and b are as defined above.
- Formulas (6a) and (6b) assume that the liquid phase is incompressible, i. that the change in volume of the liquid phase takes place only by absorption or release of carbon dioxide. Furthermore, it is assumed that no interactions take place between dissolved carbon dioxide and the molecules of the liquid phase, which would lead to an additional volume change.
- V, g V and V ⁇ 0 have the meaning given above.
- - m (PEG), m (PEG monoether) or m (PEG diether) are the freely selectable masses of the polyethylene glycol or polyethylene glycol monoether or polyethylene glycol diether
- M W (PEG) r M v (PEG monoether) or M w (PEG diether) are the mass average weights of the polyethylene glycol, polyethylene glycol monoether or polyethylene glycol diether (which can be determined as described above); and iii are the number of moles of optional further cosolvents.
- Equation (Po + axr 2 ) (- V) RT, where in formula (9) r and said cubic equation P 0 is the arbitrary initial pressure in the propellant chamber;
- V ⁇ o, I V O , a, b, H and Ho have the meaning given above.
- a pressure P is selected which lies in a range typical for the pressure vessel according to the invention; , this pressure should not be greater than the initial pressure P 0 chosen for formula (9);
- g V is determined by transforming formula (5) into a cubic equation in g V and determining g V as the only real and positive solution of this unaltered equation;
- d) g n g is determined by formula (6b) jV; e) with g V and iV the formula belonging to P is determined by means of formula (7).
- the temperature dependence of the pressure in the propellant chamber of the pressure vessel according to the invention is surprisingly relatively low. This is attributed to the fact that the pressure in the gas phase, which increases with increasing temperature, is partially compensated for by the likewise increasing temperature absorption of the carbon dioxide in the liquid phase, which leads to a reduction in the amount of carbon dioxide in the gas phase.
- FIGS. 4 to 6 show this by way of example for PEG 300 (FIGS. 4 and 5) and PEG di-butyl ether (FIG. 6). At T ⁇ 25 ° C there is a pressure change of ⁇ 2bar. Below and above this temperature jump, the pressure is relatively constant as a function of temperature.
- the jump in pressure at T ⁇ 25 ° C takes place independently of the amount of dissolved carbon dioxide and, consequently, independent of the absolute value of the pressure at T ⁇ 25 ° C.
- the pressure vessels according to the invention have a separating part which is capable of variably subdividing the interior of the pressure vessel into a propellant chamber and a storage chamber.
- a separator are all means that are used in known pressure vessels with divided interior, such as in pressure vessels of the type mentioned "bag-in-a-can", “can-in-a-can” or of the type with movable piston ,
- the materials for the separating part are not critical, as far as they do not dissolve in the respective polyethylene glycol and / or mono- or diethers of polyethylene glycol.
- membrane-type parting agents are, for example, flexible plastics which have been rendered insoluble by crosslinking, for example vulcanized rubbers or latex, or crosslinked polyesters or polyetherpolyesters. Also suitable are laminate films or pure metal foils, such as aluminum.
- the separator should, because of the use of the liquid phase in the propellant, be capable of liquid-tight partitioning between the reservoir and the propellant chamber.
- the separating part preferably also forms a gastight barrier between the storage chamber and the propellant chamber.
- the separating part is preferably designed as a movable piston or as an expandable and / or foldable inner bag.
- the pressure vessel according to the invention can also have a valve and a spray head so that the material can be released into the environment in a controlled manner by actuating the spray head and the valve.
- the pressure vessel according to the invention is then preferably an aerosol container or a spray can.
- it may also be a cartridge, which still has no exhaust valve and at the first through
- the term "at least a portion of the length of the center axis” as used in the claims preferably means at least 50% by length, based on the total length of the central axis of the interior.
- the term "center axis” is understood to mean the longest possible straight line which can be laid inside the interior and which is defined by the two geometrical transmission points of this line through the inside of the wall of the interior; in rotationally symmetric internal spaces, the central axis is the axis of rotation.
- the total length of the central axis is defined in all cases by the two geometric fürstossfrac the central axis through the inside of the wall of the interior.
- the term "at least a portion of the interior” as used in the claims preferably means at least 70 percent by volume based on the total volume of the interior.
- the interior has in all embodiments of the pressure vessel according to the invention preferably over at least part of the length of the central axis of the interior of rotationally symmetrical, in particular cylindrical shape.
- the good that can be filled in the inventive pressure vessel is a at the temperature at which the inventive pressure vessel is used, gaseous, liquid material or a finely divided dry or suspended in a liquid Good, as in the prior art pressure vessels, in particular previously known aerosol containers, is used.
- finely divided is in the frame understood the present application that the finely divided material can be sprayed through a conventional spray nozzle.
- the term "finely divided” is preferably understood to mean a particle size which is from about 0.1 ⁇ m to about 100 ⁇ m particle diameter (measured as "mass median aerodynamic diameter" MMAD). In a particularly preferred embodiment, "finely divided” also means a particle size in an inhalable size range of about 1 to about 6 ⁇ m.
- the pressure vessels according to the invention can be produced and filled in analogy to previously known pressure vessels.
- the embodiments for valves and spray heads, which are used for the inventive pressure vessel analogous to the previously known pressure vessels, such as the type mentioned "bag-in-a-can" be.
- the blank can be made of a pressure-resistant thermoplastic, such as acrylonitrile / butadiene / styrene copolymer, polycarbonate or a polyester such as polyethylene terephthalate, or preferably a metal sheet such as stainless steel sheet or aluminum sheet.
- the blank preferably has the shape of a cylinder, which can be tapered in the direction of its upper deck surface with rounding.
- the production of this blank can be effected in a manner known per se by injection molding (in the case of plastic containers) or by cold or, optionally, hot extrusion (in the case of metal containers).
- a pressure vessel in which the subdivision between the storage chamber and the propellant chamber is effected by a piston, a membrane or a bag can be filled by a container blank which is still open at its upper end and which has a preferably inwardly curved bottom surface with a closable opening is used (this method is analogous to the method described in EP-AO 017 147).
- the piston is inserted through the still open top of the blank to a desired depth in the container blank which will largely determine the volume ratio between the reservoir (above the piston) and the propellant chamber (below the piston).
- the container blank is tapered only after the insertion of the piston, if desired.
- the material is filled from above, so that it comes to rest on the piston, and the upper opening with a plate, which may optionally have an outlet valve, sealed under beading with the edge of the opening.
- a plate which may optionally have an outlet valve, sealed under beading with the edge of the opening.
- the propellant is filled through the opening in the bottom of the blank to the desired pressure and the opening is closed with a suitable stopper.
- a pressure vessel having an inner bag or membrane for partitioning can be filled as follows: The inner bag or membrane is described through the upper opening of a container blank as in 1) (which may already be tapered up here) introduced and tightly held on the edge of the opening around. The material is then filled from above through the upper opening. The inner bag is unfolded in the blank through the filling or the membrane stretched and so in the upper part the blank formed a filled with the estate pantry. Subsequently, the opening with the tightly resting on its edge part of the bag or the membrane by means of a plate, which may optionally have a valve, sealed gas-tight under beading. Finally, the propellant is again filled through the opening in the bottom of the blank to the desired pressure and the opening is closed with a suitable stopper.
- a pressure vessel with inner bag as a separator and valve can also be prepared starting from a container blank having a bottom without opening.
- a predetermined amount of blowing agent is introduced into the blank from above.
- the inner bag or the membrane are here still free of the material to be sprayed.
- the plate here has a connected to the valve hollow and provided with holes riser on which the inner bag or the membrane is first placed or wound up. This riser comes in flanging or flanging the lid into the interior of the container blank.
- An inner bag or "can-in-a-can", with valve can be filled as follows: First, the inner bag or inner can, which may be unfilled or already filled, is placed inside the container blank brought in. A valve is at most only loose, at least not liquid-tight, with its valve plate placed on the edge of the container blank, or is held at a very short distance above the edge of the container blank.
- valve disk does not rest tightly on the edge of the container blank, the pressurized propellant can then be introduced into the interior of the container blank by means of the filling device through the non-fluid-tight gap between the valve disk and the edge of the container blank.
- the valve disk After filling the interior with the propellant, the valve disk must be connected in a gastight manner to the edge of the container blank, which typically takes place by means of a seal arranged in the valve disk and again by crimping over the edge of the valve disk. If this has taken place, if the inner bag or the inner box has not already been filled with the material to be sprayed, filling with the product can be carried out through the valve stem.
- a container with a piston When a container with a piston is used as a separator, a cylindrical container blank which is upwards and optionally already has a valve but whose bottom is still open can also be used. Here is added next filled in the inverted container blank a predetermined amount of the goods, then the piston is pushed down to a desired depth in the blank. Then, a suitable amount of the blowing agent is introduced and flanged onto the lower end of the container blank under pressure a container bottom.
- blowing agents which can be used in the pressure vessels according to the invention are themselves new and are therefore also the subject of the present invention. It is a matter of
- Propellants consisting of: a) a gas phase comprising carbon dioxide, and b) a liquid phase comprising more than 90% by weight, based on the liquid phase, of a polyethylene glycol and dissolved carbon dioxide, with the proviso that the compound not polyethylene glycol 400.
- the propellant chamber 4 contains a propellant according to the invention. This consists of a gaseous phase 5 with a The total gas phase pressure is typically about 5 bar, the ratio of carbon dioxide partial pressure to total pressure being about 0.98, and liquid phase 6 consisting essentially of polyethylene glycol having M w 300 and carbon dioxide dissolved therein.
- the storage chamber 3 is filled with a liquid Good 7, which can be sprayed by means of a conventional valve (not shown in the figure) and by means of a conventional spray head 8 from the aerosol container. On the left, the filled aerosol container is shown, on the right, the aerosol container after extensive emptying, with the membrane 2 has contracted upwards.
- FIG. 2 shows an aerosol container according to the invention with an outer wall 1 made of stainless steel sheet. Its interior is divided by means of an inner bag 2 in a storage chamber 3 and a propellant chamber 4.
- the storage chamber 3 is filled with a finely divided Good 9 (about a dry powder of inhalable particle size).
- the propellant chamber 4 contains a propellant which consists of a gas phase 5 and a liquid phase 6.
- the gas phase has a total pressure of typically about 4 bar, wherein the ratio of partial pressure carbon dioxide to total pressure may be about 0.99.
- the liquid phase 6 consists essentially of PEG with M w 250 and dissolved carbon dioxide therein.
- the inner bag 2 has in its interior a hollow riser 10 with passage openings 11.
- FIG. 3 shows an aerosol container according to the invention with an outer wall 1 made of stainless steel sheet.
- the interior of the aerosol container is divided into a storage chamber 3 and a propellant chamber 4 by means of a piston 12, which may be made of PVC.
- This embodiment of the aerosol container has over at least a portion of the length of the central axis of a constantly shaped, preferably cylindrical cross-section. In the figure, the central axis is shown as a dashed line.
- the piston 12 is precisely matched to the cross section of the interior.
- the storage chamber contains a liquid to be sprayed Good 7.
- the propellant chamber 4 contains a propellant, which consists of a gas phase 5 and a liquid phase 6.
- the gas phase has a total pressure of typically about 4 bar, wherein the ratio of partial pressure carbon dioxide to total pressure may be about 0.95.
- the liquid phase 6 consists essentially of the dibutyl ether of a polyethylene glycol having an M M of about 350 and carbon dioxide dissolved therein.
- a spray head 8 On the head of the aerosol container, a spray head 8 is mounted, which has in its interior an outlet valve (not shown in the figure). On the right is shown in Figure 3, as the volume of the storage chamber 3 has been reduced by pushing up the piston 12.
- Figures 4 to 6 show the dependence of the pressure in the propellant chamber on the temperature when the liquid phase contains PEG with M w 300 or PEG dibutyl ether.
- plasticized glass bottles of 100 ml volume were used as the simulated propellant chamber. These were first clinched and evacuated, then evacuated
- the H and H 0 for the above-mentioned formula (2) can be determined by linear regression.
- Figures 7 and 8 show the measured dependence of the pressure P in the propellant chamber of inventive aerosol containers (spray cans) as a function of sprayed Volume ⁇ V.
- the respective still carbon dioxide-free liquid phase was in a mixing cylinder, which withstands a maximum pressure of 10 bar, presented and sealed.
- the liquid phase was treated with CO 2 via a plug valve with integrated tap.
- CO 2 was admitted until a pressure of 10 bar was in the mixing cylinder.
- the valve was closed and the measuring cylinder shaken vigorously until the pressure remained constant even with shaking. Subsequently, CO 2 was admitted again. This process was repeated until the desired pressure in the mixing cylinder was not exceeded even after shaking.
- the previously prepared blowing agent containing about 5 weight percent carbon dioxide was pumped without gas phase with a pump in the filling machine ("Pamasol" product filler) and filled into commercial cans with inner bag.
- the nominal volume of the cans was 118 ml each, the volume of their inner bag was 60 ml and the filled amount of propellant was 12 g per can.
- water was filled into the inner bag with the product filler. The final initial pressure in the cans is visible in Figures 7 and 8 as a y-intercept.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Medicinal Preparation (AREA)
- Cosmetics (AREA)
- Carbon And Carbon Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH7242006 | 2006-05-04 | ||
| PCT/CH2007/000221 WO2007128157A1 (de) | 2006-05-04 | 2007-05-03 | Druckbehälter mit polyethylenglykolen und kohlendioxid als treibmittel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2013114A1 true EP2013114A1 (de) | 2009-01-14 |
| EP2013114B1 EP2013114B1 (de) | 2010-04-21 |
Family
ID=37309440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07720118A Active EP2013114B1 (de) | 2006-05-04 | 2007-05-03 | Druckbehälter mit polyethylenglykolen und kohlendioxid als treibmittel |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8240509B2 (de) |
| EP (1) | EP2013114B1 (de) |
| AT (1) | ATE465101T1 (de) |
| CA (1) | CA2651096C (de) |
| DE (1) | DE502007003514D1 (de) |
| DK (1) | DK2013114T3 (de) |
| ES (1) | ES2345009T3 (de) |
| RU (1) | RU2430003C2 (de) |
| WO (1) | WO2007128157A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981883A (zh) * | 2012-11-23 | 2015-10-14 | 罗伯特·博世有限公司 | 磁性材料和用于其制造的方法 |
| CN105541523A (zh) * | 2015-12-15 | 2016-05-04 | 湖北航天化学技术研究所 | 一种热塑性碳氢推进剂组合物 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1034895C2 (nl) * | 2008-01-08 | 2009-07-13 | Dispensing Technologies Bv | Samengestelde houder en werkwijze voor het vervaardigen daarvan. |
| EP2165968A1 (de) | 2008-09-19 | 2010-03-24 | InBev S.A. | Behälterbeutel mit einem Raum unter Vordruck zwischen Innenbeutel und Außenbehälter |
| CH706042A1 (de) * | 2012-01-27 | 2013-07-31 | Alpla Werke | Druckbehälter. |
| JP5798220B2 (ja) * | 2013-12-12 | 2015-10-21 | 株式会社ヒロマイト | 二重構造容器の製造方法 |
| EP2923772B1 (de) * | 2014-03-28 | 2018-06-20 | Lawrence M. Levenstein | Aerosolnachfüllkartusche |
| JP6630491B2 (ja) * | 2015-05-01 | 2020-01-15 | 株式会社ダイゾー | 吐出容器 |
| US10519923B2 (en) * | 2015-09-21 | 2019-12-31 | Ut-Battelle, Llc | Near isothermal combined compressed gas/pumped-hydro electricity storage with waste heat recovery capabilities |
| US11104506B2 (en) | 2017-07-17 | 2021-08-31 | Rocep Lusol Holdings Ltd. | Dispensing apparatus |
| US12037996B2 (en) | 2020-09-29 | 2024-07-16 | Ut-Battelle, Llc | Fuel driven near isothermal compressor |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3031347A (en) * | 1951-02-05 | 1962-04-24 | Aerojet General Co | Slow burning solid composite propellant |
| JPS5493214A (en) * | 1977-12-29 | 1979-07-24 | Toppan Printing Co Ltd | Aerosol container made of plastic |
| FR2447445A1 (fr) | 1979-01-25 | 1980-08-22 | Chaumat Bernard | Dispositif de porte ou analogue |
| JPS60110669A (ja) * | 1983-11-12 | 1985-06-17 | 株式会社林原生物化学研究所 | 圧出容器とその製造方法 |
| FR2622541B1 (de) * | 1987-10-30 | 1990-03-09 | Oreal | |
| JPH03124585A (ja) * | 1989-10-09 | 1991-05-28 | Yoshida Kogyo Kk <Ykk> | 流動性物質の加圧吐出容器 |
| SU1704384A1 (ru) * | 1989-12-11 | 1994-07-30 | Научно-производственное объединение "Наука" | Аэрозольная упаковка |
| US5167347A (en) * | 1991-04-22 | 1992-12-01 | Clairol Incorporated | Multi-fluid mixing and automatic metering dispenser |
| RU2016820C1 (ru) * | 1991-06-29 | 1994-07-30 | Анатолий Яковлевич Столяревский | Способ создания избыточного давления газообразного диоксида углерода внутри рабочего объема упаковки для распыления вещества |
| EP0776834A1 (de) | 1995-11-29 | 1997-06-04 | Viorica Dipl.-Ing. Muntean | Behälter zur Abgabe von Aerosolen oder Schäumen |
| JP4666716B2 (ja) * | 2000-05-26 | 2011-04-06 | 株式会社ダイゾー | エアゾール製品 |
| GB0106046D0 (en) * | 2001-03-12 | 2001-05-02 | Glaxo Group Ltd | Canister |
| FR2824539B1 (fr) * | 2001-05-09 | 2003-12-19 | Oreal | Dispositif pour le conditionnement separe de deux produits, et leur distribution sous pression, de maniere separee ou en melange |
-
2007
- 2007-05-03 AT AT07720118T patent/ATE465101T1/de active
- 2007-05-03 CA CA2651096A patent/CA2651096C/en not_active Expired - Fee Related
- 2007-05-03 DK DK07720118.4T patent/DK2013114T3/da active
- 2007-05-03 EP EP07720118A patent/EP2013114B1/de active Active
- 2007-05-03 WO PCT/CH2007/000221 patent/WO2007128157A1/de not_active Ceased
- 2007-05-03 DE DE502007003514T patent/DE502007003514D1/de active Active
- 2007-05-03 RU RU2008148122/12A patent/RU2430003C2/ru not_active IP Right Cessation
- 2007-05-03 US US12/299,414 patent/US8240509B2/en not_active Expired - Fee Related
- 2007-05-03 ES ES07720118T patent/ES2345009T3/es active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007128157A1 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981883A (zh) * | 2012-11-23 | 2015-10-14 | 罗伯特·博世有限公司 | 磁性材料和用于其制造的方法 |
| CN105541523A (zh) * | 2015-12-15 | 2016-05-04 | 湖北航天化学技术研究所 | 一种热塑性碳氢推进剂组合物 |
Also Published As
| Publication number | Publication date |
|---|---|
| US8240509B2 (en) | 2012-08-14 |
| ATE465101T1 (de) | 2010-05-15 |
| CA2651096C (en) | 2014-07-08 |
| EP2013114B1 (de) | 2010-04-21 |
| DE502007003514D1 (de) | 2010-06-02 |
| US20090184131A1 (en) | 2009-07-23 |
| DK2013114T3 (da) | 2010-08-16 |
| WO2007128157A1 (de) | 2007-11-15 |
| CA2651096A1 (en) | 2007-11-15 |
| ES2345009T3 (es) | 2010-09-13 |
| RU2430003C2 (ru) | 2011-09-27 |
| RU2008148122A (ru) | 2010-06-10 |
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