WO2010145677A1 - Récipient pour la conservation et la distribution dosée d'une matière de remplissage - Google Patents

Récipient pour la conservation et la distribution dosée d'une matière de remplissage Download PDF

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Publication number
WO2010145677A1
WO2010145677A1 PCT/EP2009/004444 EP2009004444W WO2010145677A1 WO 2010145677 A1 WO2010145677 A1 WO 2010145677A1 EP 2009004444 W EP2009004444 W EP 2009004444W WO 2010145677 A1 WO2010145677 A1 WO 2010145677A1
Authority
WO
WIPO (PCT)
Prior art keywords
container according
container
polyurethane elastomer
pressure body
pressure
Prior art date
Application number
PCT/EP2009/004444
Other languages
German (de)
English (en)
Inventor
Peter Kertels
Original Assignee
Noatec Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Noatec Gmbh filed Critical Noatec Gmbh
Priority to PCT/EP2009/004444 priority Critical patent/WO2010145677A1/fr
Publication of WO2010145677A1 publication Critical patent/WO2010145677A1/fr

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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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B65D83/0061—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by the contracting forces inherent in the bag or a sleeve fitting snugly around the bag

Definitions

  • Container for storage and metered delivery of a product
  • the invention relates to a container for storage and metered delivery of a product, which is received in a pressure chamber of the container.
  • the container considered in the context of the invention is intended to serve for the controlled dispensing, in particular, of liquid, creamy, pasty or gelatinous substances.
  • the container will be provided with suitable valve means which may be selectively opened by the user, for example by pressing or otherwise actuating a valve actuator (e.g., knob, lever).
  • a valve actuator e.g., knob, lever
  • the substance (contents) received therein is under pressure. This pressure causes when opening the valve, that parts of the product flow out of the container. An additional force effect from the outside is not required.
  • the outflowing substance can maintain its state of aggregation as within the container or, for example, foam on leaving the container or disperse into a spray mist.
  • containers with elastically stretchable filling bubbles whose expansion stress is used to generate the required application force can be found in DE 43 33 627 C2, DE 201 20 143 Ul and DE 201 20 142 Ul.
  • the invention relates to containers of the type shown in these documents, ie containers (of whatever shape), which have an elastically extensible pressure body, wherein said Pressure body limited at least one filling space for the contents and used to produce a force acting on the filling pressure.
  • a container for storage and metered delivery of a product which has an elastically stretchable arranged pressure body for receiving the contents and for exerting pressure on the contents received therein, wherein the pressure body at least one layer of material from a polyurethane Has elastomer.
  • the polyurethane elastomers considered here can offer a force-elongation characteristic which can produce the intended or desired application force even at very low elongation (low filling) and then over a comparatively large amount Medbringkraft generated by them.
  • This is advantageous for two reasons: firstly, the user of a serving as a dispenser container regularly wishes that the contents flow with as constant a speed as possible from the container, no matter how large the current degree of filling. Second, it is desirable from the user's point of view to get as much of the contents out of the container as possible.
  • the pressure body should still be able to muster a sufficient pressure on the remaining remainder of the contents even at almost complete emptying.
  • This requirement profile I means that in the unfilled state of the container the smallest possible void volume should be present in the interior of the pressure body (this defines not, at least not self-contraction of the pressure body, ausbringbaren Medgutrest), but at the same time that the pressure body comparison should be strong enough to provide an acceptably large fill volume. It has been found that with a pressure bubble made of a polyurethane elastomer for practical use acceptable levels of emptying can be achieved.
  • the pressure body is suitably sized and designed so that when filling a container according to the invention with a specified for the container nominal capacity stored in the pressure body expansion energy ensures a Ausbringrate of at least 87%, preferably at least 90% and more preferably at least 93% of the nominal filling, anyway within a planned or predetermined life or maximum storage duration of the filled container. Under certain circumstances, the invention can even ensure discharge rates of more than 95% up to more than 98%, ie 95% or 98% of the filled product quantity can be applied.
  • Containers according to the invention preferably have a nominal filling volume of at least several tens of milliliters, for example at least 50 ml or at least 80 ml, and are readily usable up to nominal filling volumes of several liters. For example, containers according to the invention with nominal filling volumes in the high single-digit or even in the double-digit liter range are conceivable.
  • polyurethane elastomers are easy to process and cost-effective. This makes them particularly suitable for mass production.
  • polyurethane polymers have no harmful properties and are chemically very stable.
  • the polyurethane elastomers considered within the scope of the present invention include all elastically deformable polyurethane plastics which are suitable for the production of the pressure hull of the container according to the invention. These include polyurethane elastomers which crosslink rubber-elastically during processing (crosslinked polyurethanes) and those with thermoplastic properties (thermoplastic polyurethanes (TPU)).
  • crosslinked polyurethanes crosslinked polyurethanes
  • TPU thermoplastic polyurethanes
  • Polyurethane elastomers are formed by polyaddition reaction of polyisocyanates with polyols.
  • polyisocyanate diisocyanates according to the present invention may be used, individually or in any desired mixture. Examples of these include diphenylmethane diisocyanate (MDI, methylene bis (4-phenyl diisocyanate), polymeric diphenylmethane diisocyanate (PMDI), toluene diisocyanate (TDI), naphtha lene diisocyanate (NDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI) and 4,4'-diisocyanatodicyclohexylmethane (H12MDI).
  • MDI diphenylmethane diisocyanate
  • PMDI polymeric diphenylmethane diisocyanate
  • TDI toluene diisocyanate
  • NDI naphth
  • Polyols which may be used in the present invention are long-chain polyether polyols and polyester-polyols, in particular polyether and polyester diols, or mixtures thereof. Preference is given to polyether polyols, in particular polyether diols. Polyols having more than two hydroxyl groups can be used for the preparation of crosslinked polyurethane, wherein the hardness of the polyurethane can be adjusted via the proportions of these polyols having more than two hydroxyl groups to form diols. Alternatively, crosslinked polyurethanes can also be prepared by the reaction of, for example, triisocyanates or by the addition of so-called "crosslinkers", for example 1,4-butanediol.
  • Suitable polyether polyols can be obtained by base-catalyzed reaction of di- and polyhydric StarT alcohols with epoxides (propylene and / or ethylene oxide).
  • starting alcohols are glycols, trimethylolpropane, pentaerythritol and glycerol.
  • long and short chain polyether polyols having two (polyether diols) to eight hydroxyl groups can be obtained.
  • Polyethers with a particularly low mono-ol content which are obtainable with the aid of special catalysts such as zinc hexacyano-cobaltate, are also usable.
  • amino-polyether polyols obtainable by reacting diamines (e.g., ethylenediamine) or alkanolamines with epoxides can be used.
  • Suitable polyester polyols may be prepared, for example, by polycondensation of one or more organic dicarboxylic acids of 2 to 12 carbon atoms, such as succinic, glutaric, adipic, suberic, azelaic, sebacic, decanedicarboxylic, maleic, fumaric, phthalic, isophthalic and terephthalic acids with one or more diols such as 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, ethylene glycol, 1,2- and 1,3-propylene glycol, 1,8-octanediol, neopentyl glycol, 1,4-bis-hydroxymethylcyclohexane , 2-methyl-l, 3-propanediol, 3-methyl-l, 5-pentanediol, diethylene glycol, dipropylene glycol, dibutylene glycol, glycerol, tri
  • carbonate ester polyols which are obtained by transesterification of diphenylcarboxylic bonat with diols, such as hexanediol, are accessible. It is also possible to use the poly- ⁇ -caprolactone polyols obtainable by Ti-catalyzed ring-opening polymerization of ⁇ -caprolactone with diols or triols.
  • chain extenders which are usually low molecular weight dihydroxy or diamino compounds, polyurethane elastomers which are formed with diamino compounds as chain extenders
  • chain extenders usually low molecular weight dihydroxy or diamino compounds
  • polyurethane elastomers which are formed with diamino compounds as chain extenders
  • short-chain diols are used as chain extenders in the context of the present invention, for example ethylene glycol, glycerol, 1,4-butanediol, 2,3-butanediol, 2,5-hexanediol, 1,6-hexanediol , 2,5-dimethyl-2,5-hexanediol, 1,2-propanediol, 1,3-propanediol, 1,5-pentanediol, trimethylolpropane and hydroxyquinone bis (2-hydroxyethyl) ether.
  • Polyaddition allows the polyols and the short chain diols used as chain extenders to react with the diisocyanate to form the polyurethane.
  • a soft fraction soft segments
  • a hard portion hard segments
  • the resulting polyurethane polymer may therefore have a segmental structure and consist of "crystalline” and “amorphous” blocks ("hard segments” and "soft segments") in a particular sequence. While the hard segments function as network fixed points due to their "crystalline” properties, the soft segments dissolve under the influence of heat without the polyurethane polymers decomposing.
  • the polyurethane elastomer used in the present invention may also contain auxiliaries for production and processing and other additives.
  • auxiliaries for production and processing and other additives include reaction retardants, stabilizers, anti-aging agents, anti-hydrolysis agents, dyes, pigments, fillers, surfactants, flame retardants and antimicrobial substances.
  • the polyurethane elastomers used in the present invention for producing the at least one polyurethane elastomer material layer of the pressure body generally have a density of 1.0 to 1.25 g / cm 3 (measured according to DIN EN ISO 1183), in particular one Density of 1.1 to 1.2 g / cm 3 , on.
  • the hardness (measured according to DIN 53505) of the polyurethane elastomers is preferably in the range of 40 to 90 Shore A, more preferably in the range of 50 to 80 Shore A and particularly preferably in the range of 60 to 70 Shore A.
  • the tensile strength is preferably 5.0 to 60 N / mm 2 , more preferably 10.0 to 35 N / mm 2, and particularly preferably 15.0 to 30 N / mm 2 .
  • the elongation at break of the polyurethane elastomer is at least 100%, but may also be significantly higher. For example, the elongation at break is often in the range of 300% to 600% and in some cases exceeds 600%, 700% or even 800%.
  • the tear propagation resistance is usually at least 10 kN / m and is preferably above 25, 50 or 100 kN / m.
  • the rebound resilience is preferably in the range of 40 to 80%, in particular in the range of 50 to 70%.
  • the properties of the material layers of the pressure hull of the container according to the invention produced from the polyurethane elastomers described herein depend primarily on the type and proportions of the starting materials.
  • the polyols used essentially influence certain properties of the polyurethane elastomers.
  • the choice of the type and proportions of the starting materials depend on the desired properties of the polyurethane elastomer, which in turn result from the requirement profile of the pressure body of the container according to the invention.
  • Such desirable properties include, for example, mechanical strength, hardness, elongation (high tensile strength at high elongation at break), elasticity (high modulus of elasticity), good recovery behavior, high flexibility, high tear propagation resistance, high resistance to oxidation and hydrolysis, high resistance to chemicals and good heat resistance. and / or cold resistance.
  • polyurethane elastomers which can be used in the context of the present invention can be prepared according to processes known in polyurethane chemistry. For example, a one-step process may be used in which a polyol and optionally a chain extender are reacted directly with a polyisocyanate.
  • an isocyanate group-containing prepolymer is prepared by reacting a polyol with an excess of polyisocyanate, which is then converted in a second step by reaction with polyols and / or chain extenders
  • a modification of this is the "semi-polymer process" in which, unlike the prepolymer process in the first step, the polyisocyanate is reacted with only part of the polyol and the other part of the polyol together with the polyols and / or the chain extenders is added in the second step.
  • continuous mixing processes can also be carried out.
  • the pre-polymer method has been found.
  • two-component polyurethane systems have proven to be useful for this purpose.
  • a component A comprising polyols and optionally chain extenders and a component B comprising the preformed prepolymer are mixed in a particular ratio and used to make the polyurethane elastomers.
  • a component A comprising polyols and optionally chain extenders
  • a component B comprising the preformed prepolymer are mixed in a particular ratio and used to make the polyurethane elastomers.
  • Component are usually all required auxiliaries or additives, in particular catalysts, included.
  • Polyurethane elastomers which are particularly suitable for the purposes of the present invention are cast elastomers, in particular two-component polyurethane systems.
  • Component A usually comprises a mixture of polyols and catalysts.
  • Component B comprises the prepolymer, for example based on diphenylmethane diisocyanate. The two components are mixed together in a suitable ratio, for example 2: 1 to 1: 1, and then processed to polyurethane elastomer.
  • the mold temperature here is typically in the range of 70 to 110 0 C.
  • the polyurethane elastomer may further to a thermal aftertreatment, for example at 100 0 C for 5 to 24 hours, are subjected.
  • Chain extenders can also be added to component A, as a result of which the properties of the polyurethane elastomer can be matched to the respective area of use.
  • the chain extenders are usually in an amount of up to 15 Parts by weight, usually in an amount of 1 to 10 parts by weight, based on 100 parts by weight of component A used.
  • the two-component polyurethane cast elastomers available under the product designation Elasturan® (Elastogran GmbH, Germany) can be used.
  • Elasturan® polyether systems As an example, Elasturan® 6065/104 / A60 can be mentioned.
  • chain extenders By adding chain extenders, the properties of the Elasturan® base material, in particular the Shore A hardness, the tensile strength and the tear propagation resistance, can be adjusted according to the requirement profile.
  • the at least one polyurethane elastomer material layer of the pressure body of the container according to the invention can be produced by processing methods known per se.
  • the processing can be carried out, for example, by injection molding, extrusion or pressing.
  • the processing is preferably carried out by means of casting.
  • the pressure body may be a monolayer or a multilayer structure. He may have a single polyurethane elastomer produced from polyurethane elastomer material layer. Alternatively, however, it may also have a plurality of superimposed material layers, of which at least two are made of polyurethane elastomer material layers. These several polyurethane elastomer material layers may at least partially lie directly on one another or be separated from one another by one or more layers of other material. In the case of a multi-layer structure of the pressure hull, all layers can be bonded together in a material-tight manner, either by direct cross-linking or by using an adhesive.
  • the layers may lie on top of each other even without intimate adhesion and adhere to one another, for example, due to friction.
  • at least one main material layer of the pressure body is preferably formed by a polyurethane elastomer material layer produced from a polyurethane elastomer.
  • each polyurethane elastomeric material layer can be provided with a thin coating on the inside and / or outside as required, for example for a particularly aggressive product.
  • the energy for pressurization lo of the filling material preferably originates solely from the elastic expansion of the pressure body. That is, the container according to the invention is preferably free of any propellant gases and also free of any other mechanical force generators, by means of which the filling material located in the pressure body could be pressurized, such as arranged outside the pressure body and acting on this Federan- i5 order.
  • the ability to make the dispensing container propellant-free can be used to reduce the overall weight of the container by forming the outer shell of the container, the pressure body receiving housing
  • the container 3o nis - generally designated 10 - is designed here as a can or bottle-like container and has a stable, relatively rigid outer housing 12.
  • the outer housing 12 is cylindrical (for example with a circular or rectangular cross-section), but in alternative embodiments it may also have a cross-section which varies over its height.
  • the housing 12 has a housing bottom 14, an upper housing part 16 and a running between bottom 14 and upper part 16 jacket 18. Because the container 10 is free of propellant gas, the housing 12 can be made less resistant compared to pressure-resistant metal housings. It may therefore consist of a comparatively lightweight material and / or be designed comparatively thin-walled.
  • the housing 12 may be made of a plastic material or even at least partially of a cardboard material. It goes without saying, however, that the invention can equally be used with a metal housing, as is known, for example, from conventional spray cans with a sheet-metal housing.
  • a rubber-elastic pressure body (filling bladder) 20 which is made in one layer in a single layer, is accommodated in the housing 12, which is made of a polyurethane elastomer.
  • the pressure body 20 is designed here as a single-chamber bladder, which limits a single filling space 22 for the contents to be stored in the dispensing container 10.
  • the pressure body 20 may also form, if necessary, at least two separate filling chambers.
  • a dispensing unit 24 (valve assembly) is attached to a dispensing valve, not shown, which selectively by means of a trained here ascordrückbarer actuator head actuator 26 by the user for the
  • the substance to be dispensed exits at a dispensing opening 28, for example in strand form, as a foam or as a spray.
  • the pressure body 20 is connected in a manner not shown close to the dispensing unit 24. Exemplary constructions for the tight coupling of a stretchable elastomer body serving for filling material intake
  • the pressure body 20 has, for example, the shape of a downwardly closed piece of tubing or tube, approximately in the form
  • the pressure body 20 for example, the shape of a bubble (comparable to an inflated balloon).
  • the pressure necessary for filling is absorbed by the elasticity of the pressure body 20 and is stored there in the form of potential energy.
  • the stretched pressure body 20 urges a portion of the contents contained therein out of the filling space 22; Here, the pressure body 20 pulls something together.
  • the application force required for the application of the filling material is therefore applied solely by the pressure body 20.
  • the pressure body 20 is preferably designed so that it is applied to the housing bottom 14 when filled up to a predetermined nominal filling quantity, but there is no upturning, ie. sometimes lifts off from the ground 14 and bulges toward the inside of the housing away from the ground.
  • Pressure body 20 on the housing bottom 14 ensures stabilization of the pressure hull within the housing 12. This stability is endangered when the pressure hull kinks and thus partially removed from the ground. In addition, reduced by such a collapse of the pressure hull 20 of the available filling space.
  • Containers according to the invention are suitable for the metered delivery of any liquid, pasty, creamy or gelatinous substances. They can also be used for example as a fire extinguisher and serve for the application of a suitable flowable extinguishing powder or extinguishing gel.
  • Exemplary substances which can be applied in a controlled manner with the container according to the invention are from the cosmetics sector creams and lotions for body care, shaving gels and shaving foams, hair sprays, hair foams, deodorant sprays, foot sprays and perfumes, from the pharmaceutical industry asthma sprays, nasal sprays, disinfectant sprays and wound sprays, from the household sector

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un récipient distributeur (10) d'une matière de remplissage maintenue sous pression dans un volume de remplissage (22) du récipient, comprenant un corps de pression (20) élastiquement expansible, limitant le volume de remplissage, pour la production d'une pression s'exerçant sur la matière de remplissage et utilisable pour la distribution de la matière de remplissage. Conformément à l'invention, le corps de pression présente une couche de matériau en polyuréthanne-élastomère.
PCT/EP2009/004444 2009-06-19 2009-06-19 Récipient pour la conservation et la distribution dosée d'une matière de remplissage WO2010145677A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/004444 WO2010145677A1 (fr) 2009-06-19 2009-06-19 Récipient pour la conservation et la distribution dosée d'une matière de remplissage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/004444 WO2010145677A1 (fr) 2009-06-19 2009-06-19 Récipient pour la conservation et la distribution dosée d'une matière de remplissage

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WO2010145677A1 true WO2010145677A1 (fr) 2010-12-23

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012117401A1 (fr) 2011-03-02 2012-09-07 Greenspense Ltd. Distributeur de matière sous pression sans gaz propulseur
DE102011056331A1 (de) 2011-12-13 2013-06-13 Colep Laupheim GmbH & Co. KG Vorrichtung zum Ausgeben eines unter Druck stehenden Produktes
WO2014111940A1 (fr) 2013-01-16 2014-07-24 Greenspense Ltd. Composites élastomères présentant une résistance mécanique et une élasticité élevées et de longue durée et dispositifs les contenant
US9758641B2 (en) 2011-07-11 2017-09-12 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10239682B2 (en) 2013-01-16 2019-03-26 Greenspense Ltd. Propellant-free pressurized material dispenser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH591901A5 (en) * 1975-02-25 1977-10-14 Alza Corp Fluid dispenser - having expansible elastomeric bladder
EP0276097A2 (fr) * 1987-01-22 1988-07-27 Splicerite Limited Réceptacle pour liquide
DE9014666U1 (de) * 1990-10-23 1991-03-21 Friedrich, Richard, 7707 Engen Ventil für ein Behältnis und Behältnis allenfalls mit einem derartigen Ventil
US5127554A (en) * 1989-05-19 1992-07-07 Nozone Dispenser Systems Inc. Aerosol power system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH591901A5 (en) * 1975-02-25 1977-10-14 Alza Corp Fluid dispenser - having expansible elastomeric bladder
EP0276097A2 (fr) * 1987-01-22 1988-07-27 Splicerite Limited Réceptacle pour liquide
US5127554A (en) * 1989-05-19 1992-07-07 Nozone Dispenser Systems Inc. Aerosol power system
DE9014666U1 (de) * 1990-10-23 1991-03-21 Friedrich, Richard, 7707 Engen Ventil für ein Behältnis und Behältnis allenfalls mit einem derartigen Ventil

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012117401A1 (fr) 2011-03-02 2012-09-07 Greenspense Ltd. Distributeur de matière sous pression sans gaz propulseur
US9409698B2 (en) 2011-03-02 2016-08-09 Greenspense Ltd. Propellant-free pressurized material dispenser
US10683159B2 (en) 2011-03-02 2020-06-16 Greenspense Ltd. Propellant-free pressurized material dispenser
US9758641B2 (en) 2011-07-11 2017-09-12 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10519297B2 (en) 2011-07-11 2019-12-31 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
DE102011056331A1 (de) 2011-12-13 2013-06-13 Colep Laupheim GmbH & Co. KG Vorrichtung zum Ausgeben eines unter Druck stehenden Produktes
WO2013087069A1 (fr) 2011-12-13 2013-06-20 Colep Laupheim GmbH & Co. KG Dispositif pour distribuer un produit mis sous pression
DE102011056331B4 (de) 2011-12-13 2018-03-01 Colep Laupheim GmbH & Co. KG Vorrichtung zum Ausgeben eines unter Druck stehenden Produktes mit einem flexiblen Beutel
WO2014111940A1 (fr) 2013-01-16 2014-07-24 Greenspense Ltd. Composites élastomères présentant une résistance mécanique et une élasticité élevées et de longue durée et dispositifs les contenant
US10239682B2 (en) 2013-01-16 2019-03-26 Greenspense Ltd. Propellant-free pressurized material dispenser
US10913836B2 (en) 2013-01-16 2021-02-09 Greenspense Ltd. Elastomeric composites exhibiting high and long-lasting mechanical strength and elasticity and devices containing same
US10934076B2 (en) 2013-01-16 2021-03-02 Greenspense Ltd. Propellant-free pressurized material dispenser

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