WO2020069806A1 - Cartridge for a one or two-component mixing and dispensing system - Google Patents

Cartridge for a one or two-component mixing and dispensing system

Info

Publication number
WO2020069806A1
WO2020069806A1 PCT/EP2019/073396 EP2019073396W WO2020069806A1 WO 2020069806 A1 WO2020069806 A1 WO 2020069806A1 EP 2019073396 W EP2019073396 W EP 2019073396W WO 2020069806 A1 WO2020069806 A1 WO 2020069806A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
accordance
film bag
dispensing system
component mixing
Prior art date
Application number
PCT/EP2019/073396
Other languages
French (fr)
Inventor
Tobias Bodenmüller
Hayden Turner
Original Assignee
Sulzer Mixpac Ag
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
Priority claimed from US16/149,486 external-priority patent/US10870127B2/en
Priority claimed from DE202018105661.1U external-priority patent/DE202018105661U1/en
Application filed by Sulzer Mixpac Ag filed Critical Sulzer Mixpac Ag
Publication of WO2020069806A1 publication Critical patent/WO2020069806A1/en

Links

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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3283—Cylindrical or polygonal containers, e.g. bottles, with two or more substantially axially offset, side-by-side compartments for simultaneous dispensing
    • B65D81/3288—Cylindrical or polygonal containers, e.g. bottles, with two or more substantially axially offset, side-by-side compartments for simultaneous dispensing composed of two or more separate containers joined to each other
    • 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

Definitions

  • the present invention relates to a cartridge for a one or two-component mixing and dispensing system.
  • Cartridges are, for example, filled with sealants or adhesives and are used in a pistol-like one or two-component mixing and dispensing system in order to dismony the material contained therein.
  • the one or two-component mixing and dis- pensing system for some systems has, such as for example, the so-called side-by- side cartridge, a piston for each of the container units of the cartridge filled with sealant or adhesive, with the piston being configured to bring about a dispensing of the sealant or the adhesive from the cartridge.
  • so-called coaxial cartridges can be used, in which only one piston is used for the purpose of dispensing a ma- terial stored therein.
  • the invention is based on the object of creating an improved cartridge which can be transported in a particularly compact manner in the empty state which still has a comparatively large filling volume and is simple in its handling as well as in its manufacture.
  • a cartridge having the features of claim 1 and in particu- lar thereby that at least one flexible film bag is provided as a cartridge wall and that a rigid front part is provided that is in particular integrally formed, such as in one piece, with the at least one flexible film bag.
  • the rigid front piece is arranged as a front end section of the at least one film bag, this means at an end section remote from the piston of the one or two-component mixing and dispensing sys- tern.
  • the rigid front part comprises at least one outlet opening.
  • a flexible film bag is a film bag that can be folded together in the unfilled state, for example in the manner of a concertina and after the filling and a possibly subsequent dispensing thereof can be folded open and possibly also closed again without the film bag being damaged thereby or being influenced in its function.
  • the flexible film bag comprises a multilayer film and has at least one inner layer and an outer layer.
  • the flexible film bag can have exactly two, exactly three, exactly four, exactly five or more than five layers.
  • Lay- ers in the sense of this invention are layers of the multilayered film but not the coupling agent that is possibly present between the layers.
  • the rigid front part is an injection molded part which is formed at the film bag by means of injection molding in order to ob- tain a fixed connection between the rigid front part and the film bag.
  • a me- chanically loadable and well sealing connection between the film bag and the rigid front part can be produced.
  • the connection by means of injection mold- ed is very suitable for high numbers of production, since this process can be car- ried out in a highly automated manner.
  • the rigid front part could be connected to the flexible film bag by means of bonding, shrinking or welding. Also, a mechanical connection by means of a clip or a clamp - with or without a ring - is plausible.
  • At least one layer of the film bag comprises aluminum.
  • the film bag can also comprise one or more intermediate layers which are arranged between the inner layer and the outer layer, wherein an intermediate layer comprises aluminum.
  • an intermediate layer comprises aluminum.
  • the inner layer is the innermost layer of the film bag and the outer layer is the outermost layer of the film bag.
  • the layers respectively arranged therebetween are intermediate layers.
  • a layer which comprises ethylene vinyl alcohol (EVOH).
  • EVOH ethylene vinyl alcohol
  • This layer which comprises the ethylene vinyl alco- hol or consists thereof can be arranged between the inner layer and the outer lay er.
  • the layer with or of ethylene vinyl alcohol is directly arranged be- tween next to the outer layer and or directly adjacent to the inner layer.
  • the outer layer of the film bag is made of the same material as the rigid front part.
  • the inner layer of the film bag comprises a plastic.
  • this plastic belongs to the group of thermoplastics.
  • the inner layer of the film bag comprises the same material as the rigid front part respectively of a part of the rigid front part that is brought into contact with the film bag.
  • the inner layer and the outer layer of the film bag comprise the same material as the rigid front part respectively of a part brought into contact with the film bag of the front end part.
  • the film bag can be connected in an even better manner to the rigid front part by means of injection molding.
  • the inner layer has a shore D hardness select- ed between 40 and 99.
  • the inner layer as a shore D hardness of be- tween 40 and 60.
  • the inner layer of the film bag can, for example, be made of polyethylene, poly- propylene, polyamide, polyethylene terephthalate or polybutylene terephthalate.
  • the inner layer can, for example, comprise polyamide in the form of PA-6 or PA-66.
  • Polyamide has the advantage that it has a very high mechanical stability and their stability can be further increased by stretching.
  • Polyethylene tereph- thalate (PET) in contrast thereto is very cost-effective and has a good chemical resistance.
  • the outer layer of the film bag comprises a plastic.
  • the plastic is preferably selected from the group of thermoplastics.
  • the outer layer has a shore D hardness select- ed between 40 and 99.
  • the outer layer has a shore D hardness be- tween 40 and 60.
  • the outer layer of the film bag is made of polyethylene, polypro- pylene, polyamide, polyethylene terephthalate or polybutylene terephthalate.
  • the outer layer can, for example, comprise polyamide in the form of PA-6 or PA-66.
  • the rigid front part comprises a plastic which preferably belongs to the group of thermoplastics.
  • the rigid front part can have a shore D hardness selected between 40 and 99.
  • the shore D hardness of the rigid front part lies between 40 and 60.
  • the rigid front part is made of polyethylene, polypropylene, polyamide, polyethylene terephthalate or polybutylene tereph- thalate.
  • the rigid front part can for example comprise polyamide in the form of PA-6 or PA-66.
  • Polyamide has the advantage that it has a good high mechanical stability and is also suitable for the rigid front part.
  • polyethylene terephthalate (PET) could be used for the rigid front part. PET can namely be processed easily and has a high chemical resistance.
  • the rigid front part is made of a high density polyethylene (HDPE).
  • high density polyethylene (HDPE) has a density selected in the range of 930 kg/m 3 to 970 kg/m 3 .
  • the at least one film bag is closed at the end remote from the rigid front part by means of a weld seam.
  • the shape of the rear end can, for example be configured dome-shaped or cone-shaped.
  • the rear end of the film bag can taper continuously.
  • the film bag can have a rear side that is configured substantially planar.
  • the rear end of the film bag is closed with a seam which has the shape of a fin seal.
  • the film bag can have a lateral seam which is configured as a fin seal.
  • Such seams are under- stood to be a fin seal for which the two end regions are laid on top of one another such that their end edges point in the same direction.
  • the rear end of the film bag is closed at the end by means of a seam which is configured as an overlap seam.
  • the film bag can have a lateral seam which is configured as an over- lap seal, Such seams are understood to be an overlap seam for which the two end regions lie on top of one another such that their end edges point in opposite direc- tions.
  • the at least one film bag is closed at its end remote from the rigid front part by means of a clip.
  • a clip is preferably made of plastic.
  • At least one film bag can be closed at the end remote from the rigid front part by means of an adhesive.
  • the film bag is configured as rigid in the direc- tion of movement.
  • the film bag thus has a defined length in the filled state and can thereby be installed in a secure manner in a one or two-component mixing and dispensing system.
  • the at least one flexible film bag is configured such that a film test body made from the film bag with a width of 15 mm in a direction which corresponds to the axial direction of the film bag has a tensile strength of at least 50 N, in particu- lar has a tensile strength of at least 18 N.
  • a film test body made from the film bag with a width of 15 mm in a direction which corresponds to the axial direction of the film bag has a tensile strength of at least 50 N
  • in particu- lar has a tensile strength of at least 18 N.
  • the film bag has a resistance to perforation of between 10 N and 20 N.
  • the resistance to perforation can, for at least one of the two test norms, lie in the range of 10 N to 20 N.
  • the resistance to perforation for both test norms lies in the range of 10 N to 20 N.
  • the inner layer has a larger thickness than the outer layer.
  • the inner layer can for example be 1.5 times as thick as the outer layer.
  • the inner layer has a thickness which is twice as large as the thickness of the outer layer.
  • the inner layer has a minimum thickness of 50 pm to 90 pm.
  • the inner layer has a minimum thickness of 55 pm to 80 pm.
  • the minimum thickness of the inner layer can be selected in dependence of the material used for the inner layer and the volume of the filling material.
  • the film bag has an overall material thickness of between 80 pm and 150 pm.
  • the film thickness can be determined in accord- ance with DIN EN ISO 4593.
  • the film bag has an overall material thick ness of between 110 pm and 150 pm.
  • the film bag has a total mass per unit area of between 100 g/m 2 to 170 g/m 2 .
  • the total mass per unit area can be determined in accordance with DIN EN ISO 2286-2.
  • the film bag has a total mass per unit area of between 120 g/m 2 and 150 g/m 2 .
  • the film bag has a water vapor permeability of at most 0.3/(m 2 x d) in particular of at most 0.2 g/(m 2 x d).
  • the water vapor perme- ability is measured with the norm ISO 15106-3 (38°C/90% r.F.).
  • the film bag has a water vapor permeability which lies in the no longer measurable lower range using the norm ISO 15106-3 (38°C/90% r.F.), this means close to 0 g/(m 2 x d).
  • the film bag has an oxygen permeability of at most 0.3 cm 3 /(m 2 x bar x d) in particular of at most 0.2 cm 3 /(m 2 x bar x d).
  • the oxygen permeability is measured with the norm ASTM D3985 (23°C/90% r.F.).
  • the film bag has an oxygen permeation which lies in the no longer measurable lower range of the norm ASTM D3985 (23°C/90% r.F.), this means close to 0 cm 3 /(m 2 x bar x d).
  • the outlet opening has a minimum diameter of 1 mm to 12 mm.
  • the outlet opening can be adapted to the volume of the at least one film bag.
  • the outlet opening has a tapering cross- section. Flereby the minimum size of the outlet opening limiting the amount of dis- pensing can be provided at an end of the outlet opening.
  • the outlet opening has a cross-section tapering inwardly.
  • the outlet opening can have a variable settable cross- section. Flereby the dispensing speed can be set to different values.
  • the rigid front part can be formed substantially plate-like.
  • the rigid front part configured substantially plate-like can have at least one nose piece that forms a prolongation of the outlet opening.
  • the nose piece can represent an end section of the cartridge in the axial direction.
  • the nose piece preferably, at least regionally, has a wall thickness of between 0.5 mm and 1 .5 mm. Flereby a good compromise between sufficient stability and material cost can be achieved.
  • the nose piece preferably has a length of between 5 mm and 40 mm, in particular of between 20 mm and 30 mm.
  • the nose piece should be selected as short as possible in order to be able to empty the cartridge as completely as possible, but should still provide sufficient length in order to be able to plug, for example, a static or dynamic mixer or an outlet onto the nose piece.
  • the nose piece has a length that lies in a range of between 1/7 and 1/10 of the overall length of the cartridge in a filled state. This represents a good compromise between material loss and connectability to a static mixer.
  • the film bag has a wall thickness and/or a film thickness of at least 60 pm.
  • the film bag has a wall thickness respec- tively a film thickness of at least 80 pm.
  • the film bag has sufficient mechanical stability.
  • each of the layers of the film bag has a thick- ness of at least 4 pm, in particular of at least 5 pm.
  • a coupling agent between the layers is not considered as a layer.
  • the cou- pling agent possibly present between the layers could have a thickness of less than 5 pm.
  • the coupling agent provided between layers of different ma- terial has a thickness of 5 pm or less.
  • a coupling agent is arranged between at least two of the layers of the film bag with the coupling agent connecting the two layers one to another.
  • the coupling agent has a thickness of 1 pm to 5 pm.
  • the thickness of the coupling agent should not be smaller 1 pm as other- wise no or very little coupling agent could be present at some positions due to de- viations in tolerance. It has moreover been shown that a thickness of the coupling agent of more than 5 pm does not bring about an additional improvement of the bonding between the layers of the film bag.
  • each of the layers of the film bag has a thick- ness of between 4 pm and 100 pm.
  • each of the layers of the film bag can have a thickness of between 5 pm and 70 pm.
  • all layers of the film bag apart from the inner layer have a thick- ness of between 5 pm and 30 pm.
  • the at least one film bag has a substantially cylindrical outer shape.
  • the at least one film bag can have a weld seam in an axial direction.
  • the weld seam can be configured as a fin seam.
  • the weld seam can alternatively be also configured as an overlap seal.
  • the outer layer of the film bag is areally con- nected to the inner wall of the front part.
  • the outer layer of the film bag is not connected to the inner wall of the front part by a line contact but via a width of at least 2 mm.
  • the at least one film bag has a volume in the range of 50 ml to 750 ml.
  • a film bag has a volume of 100 ml,
  • the film bag has a volume selected in the range of 750 ml to 5000 ml.
  • the at least one film bag can have a volume of 1000 ml, 1250 ml, 1500 ml, 2500 ml or 4000 ml.
  • the cartridge can be filled with a material.
  • the one or two-component material can be an adhesive, a paint, a seal- ant, an anti-rust agent, a molding material or similar materials that can typically be dispensed using a dispensing system.
  • a designation of the content of the car- tridge may be present at the outer side of the film bag.
  • this designation is attached to the film bag shortly before the film bag is formed or following the filling of the film bag. In this way errors on the application of the designation can be minimized.
  • the rigid front part has ribs for stiffening the front part at the side of the front part remote from the film bag.
  • the ribs can, for example, extend away from the nose piece over the side of the rigid front piece remote from the flexible film bag. In this way the ribs can be used in order to stabi- lize the nose piece, this means to minimize the probability of a breaking off of the nose piece, e.g. an outlet stud.
  • the at least one flexible film bag is configured in such a way that a film test body made from the film bag with a width of 15 mm has a tensile strength of at least 60 N.
  • a film test body made from the film bag with a width of 15 mm has a tensile strength of at least 60 N.
  • the norm DIN ISO 527 7 or the norm ASTM D 882 can selectively be used.
  • the film test body having a width of 15 mm made from the film bag can in particular have a tensile strength of at least 100 N.
  • the at least one flexible film bag has a weld seam, for example a fin seal, this means a seam in which one inner side of the film bag is areally applied onto a further part of the inner side of the film bag, or an overlap seam, this means a seam in which the inner side of the film bag is areally applied onto an outer side of the film bag.
  • the at least one flexible film bag can be configured such that a film test body made of the film bag having a width of 15 mm having the sealed seam in the form of a fin seal arranged at its center has a tensile strength of at least 40 N in accordance with DIN 55529.
  • the at least one flexible film bag can be configured such that a film test body made of the film bag with a width of 15 mm has the sealed seam in the shape of an overlap seam arranged at its center has a tensile strength of at least 70 N in accordance with DIN 55529.
  • the overall tensile strength of the cartridge lies above 200 N, in particular between 200 N and 1000 N measured in accordance with DIN EN ISO 527.
  • DIN EN ISO 527 it is important that the cartridge is not destroyed by a falling on the floor.
  • Such an overall tensile strength is advantageous such that the cartridge when it is accidently dropped does not burst.
  • the film bag comprises in particular exactly three layers, with the outer layer being polyethylene (PE), one of the intermediate layers and in particular wherein the intermediate layer is made of aluminum or an aluminum alloy and the inner layer is made of polyethylene (PE).
  • PE polyethylene
  • the film bag comprises, in particular exactly, five layers, wherein the outer layer is polyethylene (PE), an intermediate layer of aluminum or of an aluminum alloy, a second intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET), a third intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET) and the inner layer is of polyethylene (PE).
  • PE polyethylene
  • the film bag comprises, in particular exactly, five layers, wherein the outer layer is polyethylene (PE), an intermediate layer of aluminum or of an aluminum alloy, a second intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET), a third intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET) and the inner layer is of polyethylene (PE).
  • the film bag can comprise more than five layers.
  • the film bag can have an outer layer of polyethylene (PE), an interme- diate layer of aluminum or of an aluminum alloy, a further intermediate layer of polyethylene (PE), polypropylene (PP), polyamide (PA), polybutylene tereph- thalate (PBT) and/or polyethylene terephthalate (PET) and an inner layer of poly- ethylene (PE).
  • PE polyethylene
  • PP polypropylene
  • PA polyamide
  • PBT polybutylene tereph- thalate
  • PET polyethylene terephthalate
  • the film bag can have at least eight lay- ers.
  • the film bag preferably has at least ten layers.
  • at least one of the layers can be made of a recycled material.
  • all of the layers can preferably be formed of recycled material.
  • the film bag can have at least one layer of an oriented polyamide film.
  • the polyamide film can for example be provided with an orientation by means of stretching.
  • the film bag has a bi-axially orien- tated polyamide film.
  • the oriented polyamide film can be configured as an inter- mediate layer or as an outer layer. An advantage of such an oriented polyamide film is its improved mechanical stability.
  • the cartridge is configured as a two- component cartridge for a two-component mixing and dispensing system.
  • the car- tridge can have a first flexible film bag as a cartridge wall that is connected in one piece with a first rigid front part, wherein the rigid front part is arranged at a front end section of the first film bag and can have a second flexible film bag as a car- tridge wall that is connected in one piece with a second rigid front part, wherein the second rigid front part is arranged at a front end section of the second film bag.
  • the first rigid front part and the second rigid front part can form a rigid structure that comprises at least one outlet opening.
  • first rigid front part and the second rigid front part of the cartridge for a two-component mixing and dispensing system can be releasably connected to one another.
  • first rigid front part and the second rigid front part can be magnetically connectable to one another.
  • first rigid front part and the second rigid front part can be releasably connected to one another by means of shape matching.
  • first rigid front part and the second rigid front part are connected to one another releasable in such a way that the first film bag and the second film bag extend in parallel to one another.
  • the first rigid front part and the second rigid front part thus comprise connection elements matching one another that permit the connection of the first front part and of the second rigid front part to one another in such a way that these have a defined position with re- spect to one another.
  • This position is preferably selected in such a way that the first film bag and the second film bag lie next to one another, in particular in paral- lel to one another.
  • first rigid front part and the second rigid front part each comprise part of a snap fit connection such that the first rigid front part and the second rigid front part can be connected to one another by means of this snap-fit connection.
  • This snap-fit connection can be produced directly at the rigid front parts during their manufacture.
  • a first part cartridge formed from the first rigid front part and the first film bag is configured as a cartridge in accordance with at least one of the previously or subsequently described embodiments.
  • a sec- ond part cartridge formed from the second rigid front part and the second film bag can be configured as a cartridge in accordance with one of the previously or sub- sequently described embodiments.
  • the invention relates to a one or two-component mixing and dispensing system having a cartridge in accordance with any one of the preceding claims, wherein the mixing and dispensing system has a structure surrounding the car- tridge in particular a structure of aluminum and/or plastic.
  • the one or two-component mixing and dispensing system can be actuated manu- ally, this means by the strength of the person using the system.
  • the one or two-component mixing and dispensing system can be electrically and/or pneumatically driven.
  • FIG. 1 a perspective illustration of a two-component cartridge in ac- cordance with the invention
  • FIG. 2 a perspective illustration of a two-component cartridge in ac- cordance with the invention in accordance with a second embodiment
  • Fig. 3 a front view of a two-component cartridge in accordance with
  • Fig. 4 a lateral sectional view of a rigid front part of a two- component cartridge in accordance with Fig. 1 or Fig. 2;
  • Fig. 5 a detailed view of the boundary of the rigid front part of
  • Fig. 6 a principle sketch of a layer structure of a film bag in accord- ance with a first embodiment
  • Fig. 7 a principle sketch of a layer assembly of a film bag in ac- cordance with a second embodiment
  • Fig. 8 a principle sketch of a seam of the film bag in accordance with a first embodiment
  • Fig. 9 a principle sketch of a seam of the film bag in accordance with a second embodiment
  • Fig. 10 an illustration of a seam of the film bag in accordance with a third embodiment
  • FIG. 11 a further illustration of the seam of the film bag of Fig. 10;
  • Fig. 12 a lateral sectional view of a rigid front part with a film at- tached at the front end;
  • Fig. 13 a detailed view of the boundary of the rigid front part of
  • Fig. 14 a perspective illustration of a coaxial two-component car- tridge in accordance with the invention.
  • Fig. 15 a perspective illustration of a two-component cartridge in ac- cordance with the invention in which the individual part car- tridges are clipped one to another;
  • Fig. 16 a side view of a rigid front part of a two-component cartridge in accordance with a further embodiment
  • Fig. 17 a front view of the rigid front part of Fig. 16.
  • Fig. 1 shows a side-by-side cartridge 10 that is configured to be inserted into a corresponding two-component mixing and dispensing system, for example the COX and MK dispenser of Sulzer MIXPAC.
  • the cartridge 10 comprises a first flex- ible film bag 12 and a second flexible film bag 14.
  • the flexible film bags 12, 14 are connected to a rigid front part 16 at their front end.
  • the rigid front part 16 is config- ured substantially plate-like and extends perpendicular to the main direction of ex- tent of the flexible film bags 12, 14.
  • the rigid front part 16 has ribs 18 at a side remote to the flexible film bags 12, 14.
  • the ribs 18 extend substantially over the overall surface of the side of the rigid front part 16 remote from the flexible film bags 12, 14.
  • the lateral ribs 18b extend perpendicular to a main rib 18a which is configured for the recep- tion of bending moments exerted onto the rigid front piece 16 which are formed by a dispensing of materials from the flexible film bags 12, 14.
  • the rigid front piece 16 is formed in one piece with the first flexible film bag 12 and with the second flexible film bag 14 in that the rigid front piece 16 is over molded at the flexible film bags 12, 14 by means of injection molding.
  • Two outlet openings 20 are formed into the rigid front part 16, with a first outlet opening 20 being connect- ed to the first flexible film bag 12 in a fluid conducting manner and a second outlet opening 20 being connected to the second flexible film bag in a fluid conducting manner or both being able to be brought into such a connection.
  • the two outlet openings 20 are formed by a nose piece 22.
  • the nose piece 22 has a thread at its outer circumferential surface onto which, for example, a static mixer can be screwed.
  • Fig. 2 a slightly different variant of a cartridge 10 is shown.
  • the flexible film bags 12, 14 each have a weld seam 25 extending in an axial direc- tion at the circumferential side.
  • the flexible film bags 12, 14 are thus produced by a rolling of the film and a subsequent welding of end regions of the film to film bags 12, 14.
  • the weld seam 25, as illustrated in Fig. 8 can be formed by an overlap seal.
  • the weld seam 25, as shown in Fig. 9 can be configured as a fin seal.
  • Fig. 3 shows the rigid front part 16 from the front.
  • the rigid front piece 16 has the shape of two circles connected one to another.
  • the shape of the rigid front piece is in this connection adapted to the cross-sectional shape of the first flexible film bag 12 and of the second flexible film bag 14, which in the filled state have a cylindrical shape and are arranged in paral- lel to one another.
  • Fig. 4 shows a lateral sectional illustration of the rigid front part 16.
  • the two outlet openings 20 each extend in parallel to one another and that one of the outlet openings 20 is connected to the first flexible film bag 12 in a fluid-conducting manner and the second outlet opening 20 is connected to the second flexible film bag 14 in a fluid conducting manner.
  • the outlet openings 20 are separated from one another along the nose piece 22 by a web 26.
  • Fig. 5 it is shown how the connection between the flexible film bag 12 and the rigid front part 16 is configured.
  • the rigid front part 16 forms an inner circumferen- tial surface 28 which is aerially connected to an outer layer 30 of the flexible film bag.
  • An innermost layer of the flexible film bag 12 is referred to as an inner layer 32. In the embodiment shown, however, the inner layer 32 does not lie at a section of the rigid front piece 16.
  • FIGs. 6 and 7 an assembly of a flexible film bag 12 is respectively shown.
  • a five-layered assembly of a flexible film bag 12 is shown.
  • the inner layer 32 is made of polypropylene.
  • the inner layer 32 as can be seen in Fig. 6 is the thickest layer of the multi-layered film.
  • a first intermediate layer 34 is made of polyamide.
  • a further interme- diate layer 36 follows which can be composed of aluminum or EVOFI.
  • a further intermediate layer 38 of polyamide then follows this.
  • An outer layer 30 of polypro- pylene then follows the intermediate layer 38 of polyamide.
  • a coupling agent 39 is respectively provided between the respective layers, this means between the inner layer and the first intermediate layer 34, between each of the intermediate layers 34, 36 and 38 and between the intermediate layer 38 and the outer layer 30.
  • This coupling agent 39 acts as an adhesive and holds the individual layers 30 to 38 together.
  • the flexible film bags 12, 14 can comprise at least two layers of different materials.
  • a five-layered film bag can have an outer layer 30 having a thickness of between 20 and 40 pm of PE. This can be connected via a coupling agent 39 which has a thickness of 1.5 to 2.5 pm to a layer of PA which has a layer thickness of 10 pm to 20 pm.
  • the PA layer can be connected via a coupling agent (thickness 1.5 to 2.5 pm) to a 5 to 10 pm thick layer of aluminum or aluminum al- loy. This layer in turn can then be connected via a coupling agent 39 (thickness 1.5 to 2.5 pm) to a PA layer which has a thickness of between 10 and 20 pm.
  • the PA layer is then connected to the inner layer 32 which can have a layer thickness of between 45 to 100 pm.
  • Fig. 7 a further layer assembly of a flexible film bag 12 is shown.
  • This film bag has eleven layers. These layers can likewise be bonded one to another with a coupling agent 39.
  • the layers shown in Fig. 7 are all composed of a recycled ma- terial.
  • Fig. 10 a possibility is shown of how the first flexible film bag 12 or of how the second flexible film bag 14 can be closed off at their respective rear end sections.
  • the film bag is laterally folded such that four layers of the flexible film bag 12 aerially lie on top of one another. End sections of the layers lying on top of one another are subsequently welded one to another. In this way a final weld seam 41 known from coffee packages is formed.
  • a further film 42 is arranged at an inner lying end side of the rigid front part 16.
  • This further film 42 can likewise be connected in one piece to the rigid front part 16.
  • the further film 42 is preferably at least regionally connected to a predetermined breaking point such that on dispensing a material from the flexible film bag 12 the further film 42 is destroyed at the predetermined breaking point.
  • Fig. 14 a variant of the cartridge 10 is shown in which the first flexible film bag and the second flexible film bag 14 are arranged coaxially with respect to one an- other in the cartridge 10.
  • the inner first film bag 12 is in contact with the material in the outer second film bag 14 in the filled state.
  • the outlet opening 20 for the materials of the two film bags 12, 14 are likewise arranged coaxially with respect to one another.
  • Such a construction shape of the cartridge 10 has the ad- vantage that only one piston is required in order to dispense the material from the first film bag 12 and in the second film bag 14.
  • a further advantage of this con- struction consists therein that the cartridge 10 is comparatively compact.
  • Fig. 15 a further variant of the cartridge 10 is shown in which the first flexible film bag 12 and the second flexible film bag 14 are respectively clipsed one to an- other at the outlet nose piece 22.
  • non-shown latch openings are provided at the nose piece 22 into which a respective latch nose 44 can be clipsed.
  • This variant of the cartridge 10 has the advantage that different types of partial cartridges 46 can be used with one another.
  • the tongue and groove-like connection formed by the latching openings and the latching bolts 44 can be configured releasable.
  • a stiffening plate 48 is provided in which a stiffening plate 48 is provided.
  • the stiffening plate 48 extends from a circular section of the rigid front part 16 to the other circular section of the rigid front part 16.
  • the stiffening plate 48 forms a part of the nose piece 22 and in this way also a part of the outlet opening 20.

Abstract

A cartridge (10) for a one or two-component mixing and dispensing system, comprising at least one flexible film bag (12, 14) as a cartridge wall, a rigid front part (16) that is in particular integrally formed with the at least one flexible film bag (12, 14) and that is arranged at a front end section of the at least one film bag (12, 14), wherein the rigid front part (16) comprises at least one outlet opening (20).

Description

CARTRIDGE FOR A ONE OR TWO-COMPONENT MIXING AND DISPENSING SYSTEM
The present invention relates to a cartridge for a one or two-component mixing and dispensing system.
Cartridges are, for example, filled with sealants or adhesives and are used in a pistol-like one or two-component mixing and dispensing system in order to dis pense the material contained therein. The one or two-component mixing and dis- pensing system for some systems has, such as for example, the so-called side-by- side cartridge, a piston for each of the container units of the cartridge filled with sealant or adhesive, with the piston being configured to bring about a dispensing of the sealant or the adhesive from the cartridge. Also, so-called coaxial cartridges can be used, in which only one piston is used for the purpose of dispensing a ma- terial stored therein.
The invention is based on the object of creating an improved cartridge which can be transported in a particularly compact manner in the empty state which still has a comparatively large filling volume and is simple in its handling as well as in its manufacture.
This object is satisfied by a cartridge having the features of claim 1 and in particu- lar thereby that at least one flexible film bag is provided as a cartridge wall and that a rigid front part is provided that is in particular integrally formed, such as in one piece, with the at least one flexible film bag. The rigid front piece is arranged as a front end section of the at least one film bag, this means at an end section remote from the piston of the one or two-component mixing and dispensing sys- tern. In order to apply the material present in the flexible film bag, in particular con- struction material, the rigid front part comprises at least one outlet opening.
In this connection it should be noted that a flexible film bag is a film bag that can be folded together in the unfilled state, for example in the manner of a concertina and after the filling and a possibly subsequent dispensing thereof can be folded open and possibly also closed again without the film bag being damaged thereby or being influenced in its function. Advantageous embodiments of the invention can be found in the dependent claims, the description and the drawing.
In accordance with an embodiment the flexible film bag comprises a multilayer film and has at least one inner layer and an outer layer. The flexible film bag can have exactly two, exactly three, exactly four, exactly five or more than five layers. Lay- ers in the sense of this invention are layers of the multilayered film but not the coupling agent that is possibly present between the layers. Through the use of a multilayer film it is possible to adapt the film bag to the mechanical and chemical properties of the specific application of the film bag.
In accordance with a further embodiment the rigid front part is an injection molded part which is formed at the film bag by means of injection molding in order to ob- tain a fixed connection between the rigid front part and the film bag. Hereby a me- chanically loadable and well sealing connection between the film bag and the rigid front part can be produced. Moreover, the connection by means of injection mold- ed is very suitable for high numbers of production, since this process can be car- ried out in a highly automated manner. Alternatively thereto the rigid front part could be connected to the flexible film bag by means of bonding, shrinking or welding. Also, a mechanical connection by means of a clip or a clamp - with or without a ring - is plausible. In accordance with an embodiment at least one layer of the film bag comprises aluminum. The film bag can also comprise one or more intermediate layers which are arranged between the inner layer and the outer layer, wherein an intermediate layer comprises aluminum. In this connection it should be noted that the inner layer is the innermost layer of the film bag and the outer layer is the outermost layer of the film bag. The layers respectively arranged therebetween are intermediate layers.
In order to minimize the permeation, in particular oxygen permeation and/or water vapor permeation through the film bag a layer can be provided which comprises ethylene vinyl alcohol (EVOH). This layer which comprises the ethylene vinyl alco- hol or consists thereof can be arranged between the inner layer and the outer lay er. Preferably the layer with or of ethylene vinyl alcohol is directly arranged be- tween next to the outer layer and or directly adjacent to the inner layer.
In accordance with an embodiment, the outer layer of the film bag is made of the same material as the rigid front part. Hereby the outer layer can be connected in a particularly simple manner to the rigid front part by means of injection molding. In accordance with an embodiment the inner layer of the film bag comprises a plastic. Preferably, this plastic belongs to the group of thermoplastics. Thereby the recycling capability of the film bag is improved for at the same time a simplification of the manufacture of the film bag. In accordance with an embodiment the inner layer of the film bag comprises the same material as the rigid front part respectively of a part of the rigid front part that is brought into contact with the film bag. Preferably, the inner layer and the outer layer of the film bag comprise the same material as the rigid front part respectively of a part brought into contact with the film bag of the front end part. Hereby the film bag can be connected in an even better manner to the rigid front part by means of injection molding.
In accordance with an embodiment the inner layer has a shore D hardness select- ed between 40 and 99. Preferably the inner layer as a shore D hardness of be- tween 40 and 60.
The inner layer of the film bag can, for example, be made of polyethylene, poly- propylene, polyamide, polyethylene terephthalate or polybutylene terephthalate. The inner layer can, for example, comprise polyamide in the form of PA-6 or PA-66. Polyamide has the advantage that it has a very high mechanical stability and their stability can be further increased by stretching. Polyethylene tereph- thalate (PET) in contrast thereto is very cost-effective and has a good chemical resistance.
In accordance with an embodiment the outer layer of the film bag comprises a plastic. The plastic is preferably selected from the group of thermoplastics.
In accordance with an embodiment the outer layer has a shore D hardness select- ed between 40 and 99. Preferably the outer layer has a shore D hardness be- tween 40 and 60.
Advantageously the outer layer of the film bag is made of polyethylene, polypro- pylene, polyamide, polyethylene terephthalate or polybutylene terephthalate. The outer layer can, for example, comprise polyamide in the form of PA-6 or PA-66. In accordance with an embodiment the rigid front part comprises a plastic which preferably belongs to the group of thermoplastics.
The rigid front part can have a shore D hardness selected between 40 and 99. Preferably, the shore D hardness of the rigid front part lies between 40 and 60.
In accordance with an embodiment the rigid front part is made of polyethylene, polypropylene, polyamide, polyethylene terephthalate or polybutylene tereph- thalate. The rigid front part can for example comprise polyamide in the form of PA-6 or PA-66. Polyamide has the advantage that it has a good high mechanical stability and is also suitable for the rigid front part. Also, polyethylene terephthalate (PET) could be used for the rigid front part. PET can namely be processed easily and has a high chemical resistance.
In accordance with an embodiment the rigid front part is made of a high density polyethylene (HDPE). In the present instance high density polyethylene (HDPE) has a density selected in the range of 930 kg/m3 to 970 kg/m3.
In accordance with an embodiment the at least one film bag is closed at the end remote from the rigid front part by means of a weld seam. The shape of the rear end can, for example be configured dome-shaped or cone-shaped. Generally, the rear end of the film bag can taper continuously. As an alternative hereto, the film bag can have a rear side that is configured substantially planar.
In accordance with an embodiment the rear end of the film bag is closed with a seam which has the shape of a fin seal. Alternatively or additionally, the film bag can have a lateral seam which is configured as a fin seal. Such seams are under- stood to be a fin seal for which the two end regions are laid on top of one another such that their end edges point in the same direction. In accordance with an embodiment the rear end of the film bag is closed at the end by means of a seam which is configured as an overlap seam. Alternatively or additionally, the film bag can have a lateral seam which is configured as an over- lap seal, Such seams are understood to be an overlap seam for which the two end regions lie on top of one another such that their end edges point in opposite direc- tions.
In accordance with an embodiment the at least one film bag is closed at its end remote from the rigid front part by means of a clip. Such a clip is preferably made of plastic.
Additionally or alternatively at least one film bag can be closed at the end remote from the rigid front part by means of an adhesive.
In accordance with an embodiment the film bag is configured as rigid in the direc- tion of movement. The film bag thus has a defined length in the filled state and can thereby be installed in a secure manner in a one or two-component mixing and dispensing system.
Preferably the at least one flexible film bag is configured such that a film test body made from the film bag with a width of 15 mm in a direction which corresponds to the axial direction of the film bag has a tensile strength of at least 50 N, in particu- lar has a tensile strength of at least 18 N. Hereby it is avoided that the film bag tears on the presence of a strain.
In accordance with an embodiment the film bag has a resistance to perforation of between 10 N and 20 N. The resistance to perforation can be determined with ref- erence to the norm DIN EN 14477, r = 0.4 for pointy objects or with reference to the norm ASTM F 1306 for blunt objects. The resistance to perforation can, for at least one of the two test norms, lie in the range of 10 N to 20 N. Preferably, the resistance to perforation for both test norms lies in the range of 10 N to 20 N.
Preferably, the inner layer has a larger thickness than the outer layer. The inner layer can for example be 1.5 times as thick as the outer layer. Preferably, the inner layer has a thickness which is twice as large as the thickness of the outer layer.
In accordance with an embodiment the inner layer has a minimum thickness of 50 pm to 90 pm. Preferably, the inner layer has a minimum thickness of 55 pm to 80 pm. The minimum thickness of the inner layer can be selected in dependence of the material used for the inner layer and the volume of the filling material.
In accordance with an embodiment the film bag has an overall material thickness of between 80 pm and 150 pm. The film thickness can be determined in accord- ance with DIN EN ISO 4593. Preferably, the film bag has an overall material thick ness of between 110 pm and 150 pm.
In accordance with an embodiment the film bag has a total mass per unit area of between 100 g/m2 to 170 g/m2. The total mass per unit area can be determined in accordance with DIN EN ISO 2286-2. Preferably, the film bag has a total mass per unit area of between 120 g/m2 and 150 g/m2.
In accordance with an embodiment the film bag has a water vapor permeability of at most 0.3/(m2 x d) in particular of at most 0.2 g/(m2 x d). The water vapor perme- ability is measured with the norm ISO 15106-3 (38°C/90% r.F.). Preferably, the film bag has a water vapor permeability which lies in the no longer measurable lower range using the norm ISO 15106-3 (38°C/90% r.F.), this means close to 0 g/(m2 x d). In accordance with a further embodiment the film bag has an oxygen permeability of at most 0.3 cm3/(m2 x bar x d) in particular of at most 0.2 cm3/(m2 x bar x d). The oxygen permeability is measured with the norm ASTM D3985 (23°C/90% r.F.). Preferably, the film bag has an oxygen permeation which lies in the no longer measurable lower range of the norm ASTM D3985 (23°C/90% r.F.), this means close to 0 cm3/(m2 x bar x d).
In accordance with an embodiment the outlet opening has a minimum diameter of 1 mm to 12 mm. The outlet opening can be adapted to the volume of the at least one film bag.
In accordance with an embodiment, the outlet opening has a tapering cross- section. Flereby the minimum size of the outlet opening limiting the amount of dis- pensing can be provided at an end of the outlet opening.
Preferably, the outlet opening has a cross-section tapering inwardly.
Alternatively or additionally, the outlet opening can have a variable settable cross- section. Flereby the dispensing speed can be set to different values.
In accordance with an embodiment, the rigid front part can be formed substantially plate-like. The rigid front part configured substantially plate-like can have at least one nose piece that forms a prolongation of the outlet opening. The nose piece can represent an end section of the cartridge in the axial direction.
The nose piece preferably, at least regionally, has a wall thickness of between 0.5 mm and 1 .5 mm. Flereby a good compromise between sufficient stability and material cost can be achieved. The nose piece preferably has a length of between 5 mm and 40 mm, in particular of between 20 mm and 30 mm. The nose piece should be selected as short as possible in order to be able to empty the cartridge as completely as possible, but should still provide sufficient length in order to be able to plug, for example, a static or dynamic mixer or an outlet onto the nose piece.
In accordance with an embodiment, the nose piece has a length that lies in a range of between 1/7 and 1/10 of the overall length of the cartridge in a filled state. This represents a good compromise between material loss and connectability to a static mixer.
In accordance with an embodiment the film bag has a wall thickness and/or a film thickness of at least 60 pm. Preferably, the film bag has a wall thickness respec- tively a film thickness of at least 80 pm. Hereby it can be assured that the film bag has sufficient mechanical stability.
In accordance with an embodiment each of the layers of the film bag has a thick- ness of at least 4 pm, in particular of at least 5 pm. However, as already men- tioned, a coupling agent between the layers is not considered as a layer. The cou- pling agent possibly present between the layers could have a thickness of less than 5 pm. Preferably the coupling agent provided between layers of different ma- terial has a thickness of 5 pm or less.
In accordance with an embodiment a coupling agent is arranged between at least two of the layers of the film bag with the coupling agent connecting the two layers one to another. When the two layers are made of different materials, the use of a coupling agent is advantageous, since layers of different materials can otherwise not be readily connected one to one another. In accordance with an embodiment the coupling agent has a thickness of 1 pm to 5 pm. The thickness of the coupling agent should not be smaller 1 pm as other- wise no or very little coupling agent could be present at some positions due to de- viations in tolerance. It has moreover been shown that a thickness of the coupling agent of more than 5 pm does not bring about an additional improvement of the bonding between the layers of the film bag.
In accordance with an embodiment each of the layers of the film bag has a thick- ness of between 4 pm and 100 pm. In particular, each of the layers of the film bag can have a thickness of between 5 pm and 70 pm. In accordance with a very spe- cific embodiment all layers of the film bag apart from the inner layer have a thick- ness of between 5 pm and 30 pm.
In accordance with an embodiment the at least one film bag has a substantially cylindrical outer shape. Alternatively or additionally to this, the at least one film bag can have a weld seam in an axial direction. The weld seam can be configured as a fin seam. The weld seam can alternatively be also configured as an overlap seal.
In accordance with an embodiment the outer layer of the film bag is areally con- nected to the inner wall of the front part. In other words, the outer layer of the film bag is not connected to the inner wall of the front part by a line contact but via a width of at least 2 mm.
For applications in the field of medical technology or for smaller works in the con- struction field it can be advantageous when the at least one film bag has a volume in the range of 50 ml to 750 ml. Preferably, a film bag has a volume of 100 ml,
200 ml or 500 ml.
In contrast to this, for larger works, in particular in the construction sector, it can be advantageous when the film bag has a volume selected in the range of 750 ml to 5000 ml. For example, the at least one film bag can have a volume of 1000 ml, 1250 ml, 1500 ml, 2500 ml or 4000 ml.
In accordance with an embodiment the cartridge can be filled with a material. For example, the one or two-component material can be an adhesive, a paint, a seal- ant, an anti-rust agent, a molding material or similar materials that can typically be dispensed using a dispensing system.
In order to avoid confusions between cartridges and in order to determine what a film bag is filled with in a simple manner a designation of the content of the car- tridge may be present at the outer side of the film bag. Preferably, this designation is attached to the film bag shortly before the film bag is formed or following the filling of the film bag. In this way errors on the application of the designation can be minimized.
In accordance with an embodiment the rigid front part has ribs for stiffening the front part at the side of the front part remote from the film bag. The ribs can, for example, extend away from the nose piece over the side of the rigid front piece remote from the flexible film bag. In this way the ribs can be used in order to stabi- lize the nose piece, this means to minimize the probability of a breaking off of the nose piece, e.g. an outlet stud.
In accordance with an embodiment, the at least one flexible film bag is configured in such a way that a film test body made from the film bag with a width of 15 mm has a tensile strength of at least 60 N. For testing the film test body the norm DIN ISO 527 7 or the norm ASTM D 882 can selectively be used. The film test body having a width of 15 mm made from the film bag can in particular have a tensile strength of at least 100 N. In accordance with an embodiment the at least one flexible film bag has a weld seam, for example a fin seal, this means a seam in which one inner side of the film bag is areally applied onto a further part of the inner side of the film bag, or an overlap seam, this means a seam in which the inner side of the film bag is areally applied onto an outer side of the film bag. In this case the at least one flexible film bag can be configured such that a film test body made of the film bag having a width of 15 mm having the sealed seam in the form of a fin seal arranged at its center has a tensile strength of at least 40 N in accordance with DIN 55529. Alter- natively thereto the at least one flexible film bag can be configured such that a film test body made of the film bag with a width of 15 mm has the sealed seam in the shape of an overlap seam arranged at its center has a tensile strength of at least 70 N in accordance with DIN 55529.
In accordance with an embodiment the overall tensile strength of the cartridge lies above 200 N, in particular between 200 N and 1000 N measured in accordance with DIN EN ISO 527. Depending on the field of application, in particular in the construction field it is important that the cartridge is not destroyed by a falling on the floor. Such an overall tensile strength is advantageous such that the cartridge when it is accidently dropped does not burst.
The features described with respect to the film bag likewise hold true to a plurality of respectively to all of the film bags of the cartridge. However, it is also plausible that different film bags of the cartridge have different properties. In accordance with an embodiment, the film bag comprises in particular exactly three layers, with the outer layer being polyethylene (PE), one of the intermediate layers and in particular wherein the intermediate layer is made of aluminum or an aluminum alloy and the inner layer is made of polyethylene (PE). In accordance with an embodiment the film bag comprises, in particular exactly, five layers, wherein the outer layer is polyethylene (PE), an intermediate layer of aluminum or of an aluminum alloy, a second intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET), a third intermediate layer of polyethylene (PE), polyamide (PA) and/or polyethylene terephthalate (PET) and the inner layer is of polyethylene (PE).
In accordance with a further embodiment, the film bag can comprise more than five layers. The film bag can have an outer layer of polyethylene (PE), an interme- diate layer of aluminum or of an aluminum alloy, a further intermediate layer of polyethylene (PE), polypropylene (PP), polyamide (PA), polybutylene tereph- thalate (PBT) and/or polyethylene terephthalate (PET) and an inner layer of poly- ethylene (PE).
In accordance with a further embodiment the film bag can have at least eight lay- ers. The film bag preferably has at least ten layers. In this connection at least one of the layers can be made of a recycled material. In order to manufacture a par- ticularly environmentally friendly product, all of the layers can preferably be formed of recycled material.
In accordance with an embodiment the film bag can have at least one layer of an oriented polyamide film. The polyamide film can for example be provided with an orientation by means of stretching. Preferably the film bag has a bi-axially orien- tated polyamide film. The oriented polyamide film can be configured as an inter- mediate layer or as an outer layer. An advantage of such an oriented polyamide film is its improved mechanical stability.
In accordance with a specific embodiment the cartridge is configured as a two- component cartridge for a two-component mixing and dispensing system. The car- tridge can have a first flexible film bag as a cartridge wall that is connected in one piece with a first rigid front part, wherein the rigid front part is arranged at a front end section of the first film bag and can have a second flexible film bag as a car- tridge wall that is connected in one piece with a second rigid front part, wherein the second rigid front part is arranged at a front end section of the second film bag. In this connection the first rigid front part and the second rigid front part can form a rigid structure that comprises at least one outlet opening.
In accordance with an embodiment the first rigid front part and the second rigid front part of the cartridge for a two-component mixing and dispensing system can be releasably connected to one another. For example, the first rigid front part and the second rigid front part can be magnetically connectable to one another. Alter- natively, the first rigid front part and the second rigid front part can be releasably connected to one another by means of shape matching.
In accordance with an embodiment the first rigid front part and the second rigid front part are connected to one another releasable in such a way that the first film bag and the second film bag extend in parallel to one another. The first rigid front part and the second rigid front part thus comprise connection elements matching one another that permit the connection of the first front part and of the second rigid front part to one another in such a way that these have a defined position with re- spect to one another. This position is preferably selected in such a way that the first film bag and the second film bag lie next to one another, in particular in paral- lel to one another.
In accordance with an embodiment the first rigid front part and the second rigid front part each comprise part of a snap fit connection such that the first rigid front part and the second rigid front part can be connected to one another by means of this snap-fit connection. This snap-fit connection can be produced directly at the rigid front parts during their manufacture. Preferably a first part cartridge formed from the first rigid front part and the first film bag is configured as a cartridge in accordance with at least one of the previously or subsequently described embodiments. Alternatively or additionally, also a sec- ond part cartridge formed from the second rigid front part and the second film bag can be configured as a cartridge in accordance with one of the previously or sub- sequently described embodiments.
Moreover, the invention relates to a one or two-component mixing and dispensing system having a cartridge in accordance with any one of the preceding claims, wherein the mixing and dispensing system has a structure surrounding the car- tridge in particular a structure of aluminum and/or plastic.
The one or two-component mixing and dispensing system can be actuated manu- ally, this means by the strength of the person using the system. Alternatively to this, the one or two-component mixing and dispensing system can be electrically and/or pneumatically driven.
Further advantageous embodiments of the invention are clear for the person skilled in the art in a natural way. In this respect, reference is made to the two ap- plications filed by the present applicant at the European Patent Office with the file references EP 18 198 353.7 and EP 18 198 347.9 whose contents is hereby re- spectively included by reference.
In the following the invention will be described purely by way of example with ref- erence to the submitted drawing. There is shown:
Fig. 1 a perspective illustration of a two-component cartridge in ac- cordance with the invention; Fig. 2 a perspective illustration of a two-component cartridge in ac- cordance with the invention in accordance with a second embodiment;
Fig. 3 a front view of a two-component cartridge in accordance with
Fig. 1 or Fig. 2;
Fig. 4 a lateral sectional view of a rigid front part of a two- component cartridge in accordance with Fig. 1 or Fig. 2;
Fig. 5 a detailed view of the boundary of the rigid front part of
Fig. 4;
Fig. 6 a principle sketch of a layer structure of a film bag in accord- ance with a first embodiment;
Fig. 7 a principle sketch of a layer assembly of a film bag in ac- cordance with a second embodiment;
Fig. 8 a principle sketch of a seam of the film bag in accordance with a first embodiment;
Fig. 9 a principle sketch of a seam of the film bag in accordance with a second embodiment;
Fig. 10 an illustration of a seam of the film bag in accordance with a third embodiment;
Fig. 11 a further illustration of the seam of the film bag of Fig. 10; Fig. 12 a lateral sectional view of a rigid front part with a film at- tached at the front end;
Fig. 13 a detailed view of the boundary of the rigid front part of
Fig. 12;
Fig. 14 a perspective illustration of a coaxial two-component car- tridge in accordance with the invention;
Fig. 15 a perspective illustration of a two-component cartridge in ac- cordance with the invention in which the individual part car- tridges are clipped one to another;
Fig. 16 a side view of a rigid front part of a two-component cartridge in accordance with a further embodiment; and
Fig. 17 a front view of the rigid front part of Fig. 16.
Fig. 1 shows a side-by-side cartridge 10 that is configured to be inserted into a corresponding two-component mixing and dispensing system, for example the COX and MK dispenser of Sulzer MIXPAC. The cartridge 10 comprises a first flex- ible film bag 12 and a second flexible film bag 14. The flexible film bags 12, 14 are connected to a rigid front part 16 at their front end. The rigid front part 16 is config- ured substantially plate-like and extends perpendicular to the main direction of ex- tent of the flexible film bags 12, 14.
The rigid front part 16 has ribs 18 at a side remote to the flexible film bags 12, 14. The ribs 18 extend substantially over the overall surface of the side of the rigid front part 16 remote from the flexible film bags 12, 14. In this connection the lateral ribs 18b extend perpendicular to a main rib 18a which is configured for the recep- tion of bending moments exerted onto the rigid front piece 16 which are formed by a dispensing of materials from the flexible film bags 12, 14.
The rigid front piece 16 is formed in one piece with the first flexible film bag 12 and with the second flexible film bag 14 in that the rigid front piece 16 is over molded at the flexible film bags 12, 14 by means of injection molding. Two outlet openings 20 are formed into the rigid front part 16, with a first outlet opening 20 being connect- ed to the first flexible film bag 12 in a fluid conducting manner and a second outlet opening 20 being connected to the second flexible film bag in a fluid conducting manner or both being able to be brought into such a connection. The two outlet openings 20 are formed by a nose piece 22. The nose piece 22 has a thread at its outer circumferential surface onto which, for example, a static mixer can be screwed. In Fig. 2 a slightly different variant of a cartridge 10 is shown. In this embodiment the flexible film bags 12, 14 each have a weld seam 25 extending in an axial direc- tion at the circumferential side. The flexible film bags 12, 14 are thus produced by a rolling of the film and a subsequent welding of end regions of the film to film bags 12, 14. In this connection, the weld seam 25, as illustrated in Fig. 8, can be formed by an overlap seal. Alternatively hereto the weld seam 25, as shown in Fig. 9 can be configured as a fin seal.
Fig. 3 shows the rigid front part 16 from the front. In this connection one can rec- ognize that the rigid front piece 16 has the shape of two circles connected one to another. The shape of the rigid front piece is in this connection adapted to the cross-sectional shape of the first flexible film bag 12 and of the second flexible film bag 14, which in the filled state have a cylindrical shape and are arranged in paral- lel to one another. Fig. 4 shows a lateral sectional illustration of the rigid front part 16. One can see in more detail that the two outlet openings 20 each extend in parallel to one another and that one of the outlet openings 20 is connected to the first flexible film bag 12 in a fluid-conducting manner and the second outlet opening 20 is connected to the second flexible film bag 14 in a fluid conducting manner. The outlet openings 20 are separated from one another along the nose piece 22 by a web 26.
In Fig. 5 it is shown how the connection between the flexible film bag 12 and the rigid front part 16 is configured. The rigid front part 16 forms an inner circumferen- tial surface 28 which is aerially connected to an outer layer 30 of the flexible film bag.
In order to ensure a good connection between the outer layer 30 of the flexible film bag 12 and the inner circumferential surface 28 of the rigid front part 16, the two parts should as far as possible be formed of the same material. An innermost layer of the flexible film bag 12 is referred to as an inner layer 32. In the embodiment shown, however, the inner layer 32 does not lie at a section of the rigid front piece 16.
In the Figs. 6 and 7 an assembly of a flexible film bag 12 is respectively shown. In Fig. 6 a five-layered assembly of a flexible film bag 12 is shown. In this connection the inner layer 32 is made of polypropylene. The inner layer 32 as can be seen in Fig. 6 is the thickest layer of the multi-layered film. A first intermediate layer 34 is made of polyamide. On this intermediate layer 34 of polyamide a further interme- diate layer 36 follows which can be composed of aluminum or EVOFI. A further intermediate layer 38 of polyamide then follows this. An outer layer 30 of polypro- pylene then follows the intermediate layer 38 of polyamide. A coupling agent 39 is respectively provided between the respective layers, this means between the inner layer and the first intermediate layer 34, between each of the intermediate layers 34, 36 and 38 and between the intermediate layer 38 and the outer layer 30. This coupling agent 39 acts as an adhesive and holds the individual layers 30 to 38 together.
Generally, the flexible film bags 12, 14 can comprise at least two layers of different materials. For example, a five-layered film bag can have an outer layer 30 having a thickness of between 20 and 40 pm of PE. This can be connected via a coupling agent 39 which has a thickness of 1.5 to 2.5 pm to a layer of PA which has a layer thickness of 10 pm to 20 pm. The PA layer can be connected via a coupling agent (thickness 1.5 to 2.5 pm) to a 5 to 10 pm thick layer of aluminum or aluminum al- loy. This layer in turn can then be connected via a coupling agent 39 (thickness 1.5 to 2.5 pm) to a PA layer which has a thickness of between 10 and 20 pm. The PA layer is then connected to the inner layer 32 which can have a layer thickness of between 45 to 100 pm.
In Fig. 7 a further layer assembly of a flexible film bag 12 is shown. This film bag has eleven layers. These layers can likewise be bonded one to another with a coupling agent 39. The layers shown in Fig. 7 are all composed of a recycled ma- terial.
In Fig. 10 a possibility is shown of how the first flexible film bag 12 or of how the second flexible film bag 14 can be closed off at their respective rear end sections. As can be seen in Fig. 11 the film bag is laterally folded such that four layers of the flexible film bag 12 aerially lie on top of one another. End sections of the layers lying on top of one another are subsequently welded one to another. In this way a final weld seam 41 known from coffee packages is formed.
In the Figs. 12 and 13 a further embodiment of a connection with the rigid front part 16 to the flexible film bag 12 is shown. In this connection a further film 42 is arranged at an inner lying end side of the rigid front part 16. This further film 42 can likewise be connected in one piece to the rigid front part 16. The further film 42 is preferably at least regionally connected to a predetermined breaking point such that on dispensing a material from the flexible film bag 12 the further film 42 is destroyed at the predetermined breaking point. In Fig. 14 a variant of the cartridge 10 is shown in which the first flexible film bag and the second flexible film bag 14 are arranged coaxially with respect to one an- other in the cartridge 10. Preferably the inner first film bag 12 is in contact with the material in the outer second film bag 14 in the filled state. The outlet opening 20 for the materials of the two film bags 12, 14 are likewise arranged coaxially with respect to one another. Such a construction shape of the cartridge 10 has the ad- vantage that only one piston is required in order to dispense the material from the first film bag 12 and in the second film bag 14. A further advantage of this con- struction consists therein that the cartridge 10 is comparatively compact. In Fig. 15 a further variant of the cartridge 10 is shown in which the first flexible film bag 12 and the second flexible film bag 14 are respectively clipsed one to an- other at the outlet nose piece 22. For this purpose, non-shown latch openings are provided at the nose piece 22 into which a respective latch nose 44 can be clipsed. This variant of the cartridge 10 has the advantage that different types of partial cartridges 46 can be used with one another. Preferably, the tongue and groove-like connection formed by the latching openings and the latching bolts 44 can be configured releasable.
In the Figs. 16 and 17 a further embodiment with the rigid front piece 16 is shown in which a stiffening plate 48 is provided. The stiffening plate 48 extends from a circular section of the rigid front part 16 to the other circular section of the rigid front part 16. The stiffening plate 48 forms a part of the nose piece 22 and in this way also a part of the outlet opening 20. List of reference numerals
10 cartridge
12 first flexible film bag
14 second flexible film bag
16 rigid front part
18 ribs
20 outlet opening
22 nose piece
24 thread
25 weld seam
26 web
28 inner circumferential surface 30 outer layer
32 inner layer
34 intermediate layer
36 intermediate layer
38 intermediate layer
39 coupling agent
40 rear end section
41 end weld seam
42 further film
44 latch bolt
46 partial cartridge
48 stiffening plate

Claims

What is claimed is:
1. A cartridge (10) for a one or two-component mixing and dispensing system, comprising at least one flexible film bag (12, 14) as a cartridge wall, a rigid front part (16) that is in particular integrally formed with the at least one flex- ible film bag (12, 14) and that is arranged at a front end section of the at least one film bag (12, 14), wherein the rigid front part (16) comprises at least one outlet opening (20).
2. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 1 ,
characterized in that
the at least one film bag (12, 14) comprises a multi-layered film having at least an inner layer (32) and an outer layer (30).
3. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 1 or claim 2,
characterized in that
the rigid front part (16) is an injection molded part which is formed at the film bag (12, 14) by means of injection molding in order to obtain a fixed con- nection between the rigid front part (16) and the film bag (12, 14).
4. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
at least one layer of the film bag (12, 14) comprises aluminum.
5. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) comprises a third layer (34, 36, 38) which is arranged between the inner layer (32) and the outer layer (30), in particular wherein the third layer comprises aluminum.
6. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) comprises a further layer (34, 36, 38) which is in par- ticular arranged between the inner layer (32) and the outer layer (30) and which comprises ethylene vinyl alcohol (EVOH).
7. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outer layer (30) of the film bag (12, 14) is made of the same material as the rigid front part (16).
8. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) of the film bag (12, 14) comprises a plastic, in particular a thermoplastic.
9. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that the inner layer (32) of the film bag (12, 14) comprises the same material as the rigid front part (16) and in particular wherein the inner layer (32) and the outer layer (30) of the film bag (12, 14) comprise the same material as the rigid front part (16).
10. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) of the film bag (12, 14) is made from the same material as that part of the rigid front part (16) brought into contact with the film bag (12, 14).
11. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) has a shore D hardness selected between 40 and 99, in particular between 40 and 60.
12. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) of the film bag (12, 14) is made of polyethylene, poly- propylene, polyamide, polyethylene terephthalate or polybutylene tereph- thalate.
13. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outer layer (30) of the film bag (12, 14) comprises a plastic, in particular a thermoplastic.
14. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outer layer (30) has a shore D hardness selected between 40 and 99, in particular between 40 and 60.
15. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outer layer (30) of the film bag (12, 14) is made of polyethylene, poly- propylene, polyamide, polyethylene terephthalate or polybutylene tereph- thalate.
16. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front piece (16) comprises a plastic, in particular a thermoplastic.
17. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front piece (16) has a shore D hardness selected between 40 and 99, in particular between 40 and 60.
18. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front part (16) is made of polyethylene, polypropylene, polyamide, polyethylene terephthalate or polybutylene terephthalate.
19. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front part (16) is made of a high density polyethylene (HDPE), with a high density polyethylene (HDPE) having a density selected in the range of 930 kg/m3 to 970 kg/m3.
20. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the at least one film bag (12, 14) is closed at the end (40) remote from the rigid front part (16) by means of a weld (41 ).
21. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims 1 to 19,
characterized in that
the at least one film bag (12, 14) is closed at the end (40) remote from the rigid front part (16) by means of a clip.
22. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims 1 to 19,
characterized in that
the at least one film bag (12, 14) is closed at the end (40) remote from the rigid front part (16) by means of an adhesive.
23. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) is rigid in the direction of movement.
24. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the at least one flexible film bag (12, 14) is configured such that a film test body made from the film bag (12, 14) with a width of 15 mm in a direction that corresponds to the axial direction of the film bag has a tensile strength of at least 50 N, in particular of at least 80 N.
25. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has a resistance to perforation of between 10 to 20 N.
26. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) has a larger thickness than the outer layer (30).
27. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the inner layer (32) has a minimum thickness of 50 pm to 90 pm, in particu- lar of 55 pm to 80 pm.
28. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that the film bag (12, 14) has an overall material thickness of between 80 m and 150 pm; and/or has a total mass per unit area of between 100 g/m2 and 170 g/m2.
29. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has a water vapor permeability of at most
0.3 g/(m2 x d), in particular of at most 0.2 g/(m2 x d).
30. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has an oxygen permeability of at most
0.3 cm3/(m2 x bar x d), in particular of at most 0.2 cm3/(m2 x bar x d).
31. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outlet opening (20) has a minimum diameter of 1 mm to 12 mm.
32. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outlet opening (20) has a tapering cross-section.
33. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 32,
characterized in that
the outlet opening (20) has a cross-section that tapers inwardly.
34. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outlet opening (20) has a variable pre-determinable cross-section.
35. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front part (16) is configured at least substantially plate like and comprises at least one nose piece (22) that forms a prolongation of the out- let opening (20).
36. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 35,
characterized in that
the nose piece (22) at least regionally has a wall thickness selected in the range of 0,5 mm to 1 ,5 mm.
37. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 35 or claim 36,
characterized in that
the nose piece (22) has a length selected between 5 mm and 40 mm, in particular between 20 mm and 30 mm.
38. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims 35 to 37, characterized in that
the nose piece (22) has a length that lies in a range selected between 1/7 and 1/10 of the overall length of the cartridge (10) in a filled state.
39. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has a wall thickness of at least 60 pm.
40. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
each of the layers of the film bag (12, 14) has a thickness of at least 4 pm, in particular of at least 5 pm.
41. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
a coupling agent (39) is arranged between at least two of the layers (30, 32, 34, 36, 38) of the film bag (12, 14), with the coupling agent (39) connecting the two layers (30, 32, 34, 36, 38) one to another, in particular wherein the two layers are formed from different materials.
42. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 41 ,
characterized in that
the coupling agent (39) has a layer thickness of 1 pm to 5 pm.
43. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
each of the layers (30, 32, 34, 36, 38) of the film bag (12, 14) has a thick ness of selected in the range of 5 pm to 100 pm.
44. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the at least one film bag (12, 14) has an at least substantially cylindrical outer shape and/or has a weld seam (25) in an axial direction, in particular wherein the weld seam (25) is formed as one of a fin seal and an overlap seal.
45. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the outer layer (30) of the film bag (12, 14) is areally connected to an inner wall of the front part (16).
46. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has a volume selected in the range of 50 ml to 750 ml.
47. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has a volume selected in the range of 750 ml to 5000 ml, in particular of 1000 ml, 1250 ml, 1500 ml, 2500 ml or 4000 ml.
48. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that a designation of the content of the cartridge (10) is present at the outer side of the film bag (12, 14).
49. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the rigid front part (16) has ribs for stiffening the front part (16) at the side of the front part (16) remote from the film bag (12, 14).
50. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the at least one flexible film bag (12, 14) is configured such that a film test body made from the film bag (12, 14) with a width of 15 mm in a direction that corresponds to the axial direction of the film bag has a tensile strength of at least 60 N, in particular of at least 100 N.
51. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the at least one flexible film bag (12, 14) has a sealed seam (25), in particu- lar a fin seal or an overlap seam; and
the at least one flexible film bag (12, 14) is configured such that a film test body made from the film bag (12, 14) with a width of 15 mm having a sealed seam (25) in the form of a fin seal at its center has a tensile strength of at least 40 N in accordance with DIN 55529; or
such that a film test body made from the film bag (12, 14) with a width of 15 mm has a sealed seam (25) in the form of an overlap seam at its center has a tensile strength of at least 70 N in accordance with DIN 55529.
52. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the overall tensile strength of the cartridge (10) lies above 200 N, in particu- lar lies between 200 N and 1000 N.
53. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the flexible film bag (12, 14) has three layers, with an outer layer (30) of polyethylene (PE), with an intermediate layer (34, 36, 38) of aluminum and with an inner layer (32) of polyethylene (PE).
54. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) has five layers, with an outer layer (30) of polyethylene (PE), with an intermediate layer (34, 36, 38) of aluminum, with a further in- termediate layer (34, 36, 38) which comprises one of polyethylene (PE), polypropylene (PP), polyamide (PA), polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) and with an inner layer (32) of pol- yethylene (PE).
55. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) comprises more than five layers, in particular with an outer layer (30) of polyethylene (PE), with an intermediate layer (34, 36, 38) of aluminum, with a further intermediate layer (34, 36, 38) which comprises one of polyethylene (PE), polypropylene (PP), polyamide (PA), polybutylene terephthalate (PBT) and/or polyethylene terephthalate (PET) and with an inner layer (32) of polyethylene (PE).
56. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) comprises at least eight layers, in particular at least ten layers, in particular wherein at least one of the layers is composed of recy- cled material, in particular wherein all layers are composed of recycled ma- terial.
57. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the film bag (12, 14) comprises at least one layer (30, 32, 34, 36, 38,) formed from an orientated polyamide film, in particular a biaxially orientated polyamide film.
58. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
a rear end of the film bag (12, 14) continuously tapers in a filled state.
59. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
a rear end of the film bag (12, 14) is formed as dome-shaped or cone- shaped.
60. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims 1 to 57,
characterized in that
the film bag (12, 14) has a rear side that is formed substantially planar in a filled state.
61. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
a rear end of the film bag (12, 14) is closed with a seam which is configured as a fin seal and/or the film bag (12, 14) has a lateral seal which is config- ured as a fin seal.
62. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
a rear end of the film bag (12, 14) is closed with a seal which is configured as an overlap seal; and/or
the film bag (12, 14) has a lateral seal which is configured as an overlap seal.
63. A cartridge (10) for a one or two-component mixing and dispensing system having a first flexible film bag (12) as a cartridge wall in accordance with at least one of the preceding claims, that is formed in one piece with a first rig- id front part (16), wherein the rigid front part (16) is arranged at a front end section of the first film bag (12, 14),
having a second flexible film bag (14) as a cartridge wall that is connected in one piece with a second rigid front part (16), wherein the second rigid front part (16) is arranged at a front end section of the second film bag (14), wherein the first rigid front part (16) and the second rigid front part (16) form a rigid structure that comprises at least one outlet opening (20).
64. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 63,
characterized in that
the first rigid front part (16) and the second rigid front part (16) are releasa- bly connected to one another.
65. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with claim 63 or claim 64,
characterized in that
the first rigid front part (16) and the second rigid front part (16) are releasa- bly connected to one another such that the first film bag (12) and the sec- ond film bag (14) extend in parallel to one another.
66. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the claims 63 to 65,
characterized in that
the first rigid front part (16) and the second rigid front part (16) each corn- prise a part of a snap-fit connection, such that the the first rigid front part (16) and the second rigid front part (16) can be connected one to another by means of this snap-fit connection.
67. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the claims 63 to 66, wherein a first part cartridge (46) formed by the first rigid front part (16) and the first film bag (12) and/or a second part cartridge (46) formed from the second rigid front part (16) and the second film bag (14) are configured as a cartridge (10) in accordance with at least one of the claims 1 to 51.
68. A one or two-component mixing and dispensing system having a cartridge (10) in accordance with at least one of the preceding claims, wherein the mixing and dispensing system has a structure surrounding the cartridge
(10) in particular a structure of aluminum and/or of plastic.
69. A cartridge (10) for a one or two-component mixing and dispensing system in accordance with at least one of the preceding claims,
characterized in that
the cartridge (10) is filled with a material.
70. A one or two-component mixing and dispensing system in accordance with claim 68,
characterized in that
the one or two-component mixing and dispensing system is manually actu- able.
71. A one or two-component mixing and dispensing system in accordance with claim 68,
characterized in that
the one or two-component mixing and dispensing system is electrically driv- en.
72. A one or two-component mixing and dispensing system in accordance with claim 68,
characterized in that
the one or two-component mixing and dispensing system is pneumatically driven.
PCT/EP2019/073396 2018-10-02 2019-09-03 Cartridge for a one or two-component mixing and dispensing system WO2020069806A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16/149,486 US10870127B2 (en) 2018-10-02 2018-10-02 Cartridge for a mixing and dispensing system
DE202018105661.1 2018-10-02
DE202018105661.1U DE202018105661U1 (en) 2018-10-02 2018-10-02 Cartridge for a mixing and dispensing system
US16/149,486 2018-10-02

Publications (1)

Publication Number Publication Date
WO2020069806A1 true WO2020069806A1 (en) 2020-04-09

Family

ID=67851123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/073396 WO2020069806A1 (en) 2018-10-02 2019-09-03 Cartridge for a one or two-component mixing and dispensing system

Country Status (1)

Country Link
WO (1) WO2020069806A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007333A1 (en) * 1989-11-09 1991-05-30 Carmine Baviello Single-component or two-component bag cartridges for insertion in re-usable applicators
US5593066A (en) * 1992-12-22 1997-01-14 Kabushiki Kaisha Hosokawa Yoko Container, method of manufacturing the same, and installation jig for cartridge container for discharge gun
WO2013056874A1 (en) * 2011-10-17 2013-04-25 Sulzer Mixpac Ag Cartridge and multi-component cartridge
EP2927156A1 (en) * 2014-03-31 2015-10-07 Sulzer Mixpac AG Cartridge and method for producing a cartridge
US20160045928A1 (en) * 2004-12-30 2016-02-18 Plas-Pak Industries, Inc. Component delivery system utilizing film bags
US20160089689A1 (en) * 2014-09-29 2016-03-31 Cryovac, Inc. Dispensing Package Comprising Internal Package Fitment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007333A1 (en) * 1989-11-09 1991-05-30 Carmine Baviello Single-component or two-component bag cartridges for insertion in re-usable applicators
US5593066A (en) * 1992-12-22 1997-01-14 Kabushiki Kaisha Hosokawa Yoko Container, method of manufacturing the same, and installation jig for cartridge container for discharge gun
US20160045928A1 (en) * 2004-12-30 2016-02-18 Plas-Pak Industries, Inc. Component delivery system utilizing film bags
WO2013056874A1 (en) * 2011-10-17 2013-04-25 Sulzer Mixpac Ag Cartridge and multi-component cartridge
EP2927156A1 (en) * 2014-03-31 2015-10-07 Sulzer Mixpac AG Cartridge and method for producing a cartridge
US20160089689A1 (en) * 2014-09-29 2016-03-31 Cryovac, Inc. Dispensing Package Comprising Internal Package Fitment

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