US20080156831A1 - Cartridge for Viscous Fluid Materials - Google Patents

Cartridge for Viscous Fluid Materials Download PDF

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Publication number
US20080156831A1
US20080156831A1 US11/720,639 US72063905A US2008156831A1 US 20080156831 A1 US20080156831 A1 US 20080156831A1 US 72063905 A US72063905 A US 72063905A US 2008156831 A1 US2008156831 A1 US 2008156831A1
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United States
Prior art keywords
cartridge
layer
barrel portion
gas barrier
contents
Prior art date
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Abandoned
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US11/720,639
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English (en)
Inventor
Tohru Nakayama
Hideyuki Mori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DuPont Toray Specialty Materials KK
Original Assignee
Dow Corning Toray Co Ltd
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Assigned to DOW CORNING TORAY CO., LTD. reassignment DOW CORNING TORAY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MORI, HIDEYUKI, NAKAYAMA, TOHRU
Publication of US20080156831A1 publication Critical patent/US20080156831A1/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/02—Linings or internal coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0807—Coatings
    • B65D23/0814—Coatings characterised by the composition of the material
    • B65D23/0835—Coatings characterised by the composition of the material consisting mainly of metallic compounds
    • 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
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles

Definitions

  • the present invention relates to a cartridge used for storing viscous fluid materials, and, especially suitably, moisture-curable compositions such as sealing agents, and dispensing the materials onto surfaces to be coated at the moment of use.
  • Well-known containers used for storing sealing agents include plastic cartridges obtained by molding a lid having a discharge outlet integrally with the top end of a barrel portion made of plastic and, after filling it with a sealing agent, installing a plunger in the opening in the lower end of the barrel portion.
  • polyethylene is typically used as the material used for the barrel portion and lid and the thickness of the barrel portion walls, with account taken of the required strength, weight, economic efficiency, etc., is normally set to 1-1.5 mm, due to the characteristics of the material and the pinholes formed during molding, the walls exhibit a certain degree of air permeability and their outside air-barrier properties are imperfect.
  • JP-A Japanese Patent Application Publication
  • JP-A No. 2001-240154 and JP-A No. 2003-104461 describe plastic cartridges for sealing agents produced by wrapping a composite film comprising an aluminum film around the exterior periphery of a cylindrical barrel portion constituted by a plastic molding.
  • gas barrier properties are imparted and the storage life of the sealing agents inside is improved by wrapping a composite film including an aluminum film around the exterior periphery of the cylindrical barrel portion.
  • the present invention provides a cartridge for viscous fluid materials, wherein a plunger used for dispensing contents filling a cartridge body is inserted in the bottom side of the cartridge body fabricated using insert injection molding by integrally molding a cylindrical barrel portion of a multilayer structure in which a gas barrier layer comprising a metal thin layer is laminated on the exterior periphery or interior periphery of a plastic layer used to maintain the shape and strength of the cylindrical barrel portion itself, and a lid covering the top of said cylindrical barrel portion.
  • a gas barrier layer comprising the above-mentioned metal thin layer may be laminated on the exterior periphery of the plastic layer of the above-mentioned cylindrical barrel portion.
  • the gas barrier layer comprising the metal thin layer and a layer producing no interaction with the contents or allowing no components from the contents to pass therethrough may be laminated on the interior periphery of the plastic layer of the cylindrical barrel portion.
  • the cylindrical barrel portion and the lid portion may be formed using injection molding by injecting PE, the layer producing no interaction with the contents or allowing no components from the contents to pass therethrough may be formed from any one of polyesters, polyamides, polyacrylic resins, heat-curable epoxy resins, UV-curable epoxy resins, or mixed resins of two or more components selected therefrom, and the contents include at least one component selected from organic solvents, hydrocarbon oils, and ketones.
  • the inventive cartridge for viscous fluid materials offers high productivity because it permits integral molding of the cartridge body and the location of the gas barrier arranged in its cylindrical barrel portion using a single molding process.
  • the cylindrical barrel portion of the cartridge body is enclosed in the gas barrier layer comprising a metal thin layer, it has excellent gas barrier properties, in particular, moisture barrier properties.
  • the gas barrier layer when the gas barrier layer is laminated on the exterior periphery of the plastic layer of the cylindrical barrel portion, the gas barrier layer is molded integrally with the cylindrical barrel portion of cartridge body by insert injection molding, as a result of which, unlike in case of wrapping a gas barrier film around the barrel portion, no external appearance defects are produced at the site of film wrapping because of wrinkles and residual air.
  • the gas barrier layer is laminated on the interior periphery of the plastic layer of the cylindrical barrel portion, even if the injection molding resin constituting the primary molding material of the cartridge body is a material that readily exhibits interaction with the contents, the plastic layer made up of the injection molding resin is protected from the contents by the gas barrier layer, thereby yielding a cartridge offering high durability to the contents or high storage stability for the contents.
  • the above-mentioned cartridge is suitable for use as a cartridge filled with a moisture-curable composition, such as a sealing agent, especially a silicone-, silicone modified-, or polyurethane-based sealing agent.
  • a moisture-curable composition such as a sealing agent, especially a silicone-, silicone modified-, or polyurethane-based sealing agent.
  • FIG. 1 is an exploded perspective view illustrating an example of the inventive cartridge for viscous fluid materials
  • FIG. 2 is a cross-sectional view illustrating an example of the inventive cartridge for viscous fluid materials
  • FIG. 3 is a cross-sectional view illustrating another example of the inventive cartridge for viscous fluid materials.
  • the reference numeral in each figure refers to the following: 1 : cartridge, 2 : cartridge body, 3 : plunger, 4 : nozzle, 5 : cylindrical barrel portion, 6 : lid, 7 : plastic layer, 8 : gas barrier layer, 8 a : metal thin layer, 8 b : bonding layer, 8 c : outermost layer, 8 d : metal thin layer, 8 e : bonding layer, 8 f : outermost layer, 9 : cylindrical opening portion, 9 a : Helical groove, 10 : seal film, 11 : pressure-application surface, and 12 : cylindrical side surface.
  • the inventive cartridge for viscous fluid materials is a cartridge, wherein a plunger used for dispensing contents filling a cartridge body is inserted in the bottom side of the cartridge body fabricated using insert injection molding by integrally molding a cylindrical barrel portion of a multilayer structure in which a gas barrier layer comprising a metal thin layer is laminated on the exterior periphery or interior periphery of a plastic layer used to maintain the shape and strength of the cylindrical barrel portion itself, and a lid covering the top of said cylindrical barrel portion.
  • FIG. 1 and FIG. 2 show an exploded perspective view and a schematic cross-sectional view of an example of the present invention, wherein a cartridge, 1 A, has a gas barrier layer laminated on the exterior periphery of the barrel portion of the cartridge body.
  • cartridge 1 A is composed of a cartridge body 2 , in which a lid 6 covers the top side of a cylindrical barrel portion 5 ; a plunger 3 , which is inserted into the bottom of the cartridge body 2 ; and a nozzle 4 , which is attached as the occasion demands.
  • FIG. 2 is a cross-sectional view of cartridge 1 A with the plunger 3 and nozzle 4 installed in the cartridge body 2 .
  • the cylindrical barrel portion 5 of the cartridge body 2 has a multilayer structure produced by laminating, in the direction from the inside towards the outside on the exterior periphery of a plastic layer 7 used to maintain the shape and strength of the cylindrical barrel portion itself, a gas barrier layer 8 made up of a bonding layer 8 b used for boding to the plastic layer, a metal thin layer 8 a , and an outermost layer 8 c .
  • a protruding cylindrical opening portion 9 is formed in the center of the lid 6 , a helical groove 9 a is provided on the exterior periphery of the cylindrical opening portion for threaded engagement with the nozzle 4 , and a suitable seal film 10 made of aluminum foil etc. is attached using an appropriate method, such as adhesion, fusion, etc., to the interior surface of the lid 6 in order to cover the cylindrical opening portion.
  • the cartridge body 2 which is an integral molding formed using insert injection molding by arranging a gas barrier film serving as a gas barrier layer inside a mold in a location corresponding to the exterior periphery of the cylindrical body and injecting molten resin into the mold, the plastic layer 7 of the cylindrical barrel portion and lid portion 6 are made up of the resin injected into the mold and the gas barrier layer portion 8 is made up of the gas barrier film inserted into the mold.
  • the injection molding resin which constitutes the primary molding material of the cartridge body 2 , is subject to no particular limitations so long as it is a plastic material satisfying requirements in terms of the shape, strength and other physical properties required for the cartridge body and so long as it has the stability required to prevent interaction with the contents.
  • suitable resins include polyolefin resins, such as LDPE, HDPE, LLDPE, and other polyethylenes (PE), polypropylene, etc., as well as mixed resins comprising said polyolefin resins as the main ingredients.
  • the gas barrier film serving as the gas barrier layer of the cartridge body has at least a metal thin layer.
  • Aluminum foil and aluminum deposition-layers are preferred as the metal thin layers, but foil and deposition-layers of other metallic materials may be used as well. It is only necessary for the gas barrier film to comprise a metal thin layer, which may be a single layer film made up of metal foil or a composite film where other layers are provided on one or both sides of a metal thin layer.
  • the gas barrier film is preferably a composite film, in which a bonding layer 8 b made up of a resin exhibiting high adhesive properties with respect to the injection molding resin is provided on one side of a metal thin layer.
  • the gas barrier film may be represented by a composite film having an outermost layer 8 c used for protecting the metal thin layer provided on one side of the metal thin layer.
  • the same type of material as the material of the plastic layer e. g. either one of LDPE, HDPE, or LLDPE in case of LDPE, HDPE, or LLDPE
  • the outermost layer 8 c may be formed from the same type of plastic material as the bonding layer 8 b.
  • a suitable gas barrier film is obtained by laminating a PET layer with a thickness of 5-100 ⁇ m and a biaxially-oriented polypropylene layer (OPP layer) with a thickness of 5-100 ⁇ pm, which serves as the outermost layer, on one side of aluminum foil with a thickness of 5-100 ⁇ m and laminating a PE layer with a thickness of 10-50 ⁇ m, which serves as the bonding layer, on the other side.
  • OPP layer biaxially-oriented polypropylene layer
  • gas barrier film obtained by laminating an OPP layer with a thickness of 5-100 ⁇ m serving as an outermost layer on one side of an aluminum deposition PET film produced by providing a 1-10 nm aluminum deposition-layer on one side of a PET base film with a thickness of 10-100 ⁇ m, and laminating a PE layer with a thickness of 10-50 ⁇ m serving as a bonding layer on the other side.
  • the thickness of the aluminum foil and aluminum deposition film is preferably within the above-described ranges, because in such a case few pinholes develop in the aluminum layer and its flexibility may not be impaired.
  • the thickness of the PE layer is preferably within the above-described range because the bonding layer then may exhibit sufficient adhesion and may not be excessively thick.
  • a cartridge body with an outside diameter of 30 to 100 mm, a length of 150 to 250 mm (excluding the cylindrical opening portion), a wall thickness of 0.5 to 2 mm in the cylindrical barrel portion, and a lid thickness of 0.5 to 2 mm can be molded by inserting such a barrier film into a mold in the position corresponding to the exterior periphery of the cylindrical body and injecting molten PE into the mold.
  • the name of the product and the contents, manufacture date, manufacturer, and other information can be indicated by printing it on the exterior periphery of the barrel portion of the cartridge body.
  • the plunger 3 which is inserted into the bottom portion of the cartridge body 2 , has a pressure-application surface 11 , which comes into contact with the contents, and a cylindrical side surface 12 , which is tightly engaged with the interior surface of the cylindrical barrel portion 5 of the cartridge body 2 and is slidably movable therein in a fluid-tight manner when pressed inside the cartridge body.
  • the plunger 3 is typically a bottomless hollow cylinder, with the piston of a dispensing implement, not shown, pressing against the hollow recessed portion thereof.
  • the material used for the plunger which may be molded from the same plastic material as the cartridge body.
  • nozzle 4 it is only necessary to install the nozzle 4 in the cylindrical opening portion 9 of the lid at the moment of use and it does not have to be installed when the cartridge is in storage.
  • material used for the nozzle which may be molded from the same plastic material as the cartridge body.
  • FIG. 3 is a schematic cross-sectional view of another example of the present invention, wherein a cartridge, 1 B, has a gas barrier layer laminated on the interior periphery of the barrel portion of the cartridge body.
  • cartridge 1 B In the explanations of cartridge 1 B provided below, explanations concerning portions common with cartridge 1 A are omitted, with the explanations focusing mainly on the portions characteristic of cartridge 1 B. In addition, for portions common with cartridge 1 A, the same reference numerals are used in the figure illustrating cartridge 1 B as in the figure illustrating cartridge 1 A.
  • cartridge 1 B has the same external appearance as cartridge 1 A illustrated in the above-described FIG. 1 , the cross-sectional structure of the barrel portion of the cartridge body is different from that of cartridge 1 A.
  • the cylindrical barrel portion 5 has a multilayer structure produced by laminating, in the direction from the outside towards the inside on the interior periphery of a plastic layer 7 used for maintaining the shape and strength of the cylindrical barrel portion itself, a gas barrier layer 8 made up of a bonding layer 8 e , which is used for bonding to the plastic layer, a metal thin layer 8 d , and an innermost layer 8 f.
  • the cartridge body 2 is an integral molding formed using insert injection molding by arranging a gas barrier film serving as a gas barrier layer inside a mold in a location corresponding to the interior periphery of the cylindrical body and injecting molten resin into the mold, wherein the plastic layer 7 of the cylindrical barrel portion and the lid portion 6 are made up of the resin injected into the mold and the gas barrier layer portion 8 is made up of the gas barrier film inserted into the mold.
  • the injection molding resin used to form the plastic layer 7 of the cylindrical barrel portion of the cartridge body 2 is a material readily producing interaction with the contents (in other words, a material readily swelling in the presence of the contents, a material quickly deteriorating in the presence of the contents, or a material quickly dissolving in the contents and causing its deterioration)
  • the swelling of the cartridge body 2 results in the leakage of the contents, imperfect engagement between the plunger and the body, and aeration of the contents, or, otherwise, contact between the injection molding resin and the contents causes the contents and the cartridge to deteriorate.
  • the metal thin layer of the gas barrier film is made up of metal foil, contact with the plastic layer 7 of the cylindrical barrel portion and the contents can usually be easily avoided. From the standpoint of further improving the durability of the container and the storage life of the contents, it is preferable to provide a layer that does not allow the contents to pass therethrough (in particular, organic solvents, hydrocarbon oils, and ketones in the contents) adjacent the metal thin layer or between the metal thin layer and another layer.
  • a layer that does not allow the contents to pass therethrough in particular, organic solvents, hydrocarbon oils, and ketones in the contents
  • the expression “a layer producing no interaction with the contents or allowing no components from the contents to pass therethrough” means that a certain layer, which that does not cause any alteration of the contents or the container or degradation in the storage life of the contents or the durability of the container, does not produce any interaction with the entire formulation of the contents or any interaction with one, two, or more components in the formulation, and, even if the interaction does occur, the interaction does not present any problems in practical terms; and, that a layer does not allow any components from the contents to pass therethrough, or even if it does, it does not allow an amount to pass therethrough that would cause any alteration of the contents or the container or any degradation in the storage life of the contents or the durability of the container that would present problems in practical terms. In this sense, interaction or penetration at levels that can be ignored in practical use is permissible.
  • the innermost layer 8 f of the gas barrier layer 8 can be made chemically stable with respect to the components and solvents included in the contents filling the cartridge, or can be formed from resin that does not allow them to pass therethrough.
  • Resins suitable for the innermost layer are exemplified by polyethylene, polypropylene, and other polyolefins; Nylon-6, Nylon-6,6, and other polyamides; polyethylene terephthalate, polynaphthalates, and other polyesters; polyacrylic resins; and heat-curable and UV-curable epoxy resins, etc.
  • polyester resins of superior solvent resistance and economic efficiency are preferable, and among these, polyethylene terephthalate is even more preferable.
  • the gas barrier film is preferably a composite film, in which the innermost layer is provided on one side of the metal thin layer and, on the other side, there is provided a bonding layer 8 e made up of resin possessing high adhesive properties with respect to the injection molding resin in order to firmly bond the gas barrier film to the injection molding resin.
  • the same type of material as the material of the plastic layer e. g. either one of LDPE, HDPE, or LLDPE in case of LDPE, HDPE, or LLDPE
  • the bonding layer 8 e is preferable for use in the bonding layer 8 e.
  • a gas barrier film is suitably used that is obtained by laminating a PET layer with a thickness of 5-100 ⁇ m and an OPP layer with a thickness of 5-100 ⁇ m serving as the innermost layer on one side of aluminum foil with a thickness of 5-100 ⁇ m and laminating a PE layer with a thickness of 10-50 ⁇ m serving as a bonding layer on the other side.
  • gas barrier film obtained by laminating an OPP layer with a thickness of 5-100 ⁇ m serving as an innermost layer on one side of an aluminum deposition PET film produced by providing a 1-10 nm aluminum deposition-layer on one side of a PET base film with a thickness of 10-100 ⁇ m and laminating a PE layer with a thickness of 10-50 ⁇ m serving as a bonding layer on the other side.
  • the cartridge body 2 of cartridge 1 B can be molded by inserting such a gas barrier film into the mold in a position corresponding to the interior periphery of the cylindrical body and injecting molten PE into the mold.
  • cartridge 1 B the same components as in cartridge 1 A can be used for the nozzle 4 and the plunger 3 inserted into the bottom of the cartridge body 2 .
  • the above-described cartridges 1 A and 1 B are used to discharge the contents by breaking the seal film 10 to open the cylindrical opening portion, attaching the nozzle 4 , and pushing the plunger 3 inside toward the top end of the cartridge body 2 .
  • the cartridge allows for various viscous fluid materials to be filled, stored, and discharged as the contents
  • the cartridge is suitable for use as a cartridge filled with a moisture-curable composition, such as a sealing agent, and especially a silicone-, silicone modified-, or polyurethane-based sealing agent.
  • the above-described inventive cartridge for viscous fluid materials offers high productivity and cost reductions because it permits integral molding of the cartridge body with the location of the gas barrier layer arranged in its cylindrical barrel using a single molding process.
  • the cylindrical barrel portion of the cartridge body is enclosed in the gas barrier layer comprising a metal thin layer, it has excellent gas barrier properties, in particular, moisture barrier properties.
  • the gas barrier layer is laminated on the interior periphery of the cartridge body, as in the above-mentioned cartridge 1 B, even if the injection molding resin constituting the primary molding material of the cartridge body is a material that readily exhibits interaction with the contents, the plastic layer made up of the injection molding resin is protected from the contents by the gas barrier layer and, as a result, a cartridge is obtained that provides high durability to the contents or high storage stability for the contents.
  • the resultant cartridge body 1 A has a shape, in which one end of the cylindrical barrel portion is covered with a lid portion 6 provided with a cylindrical opening portion (discharge portion) in the center thereof, with the body having an internal diameter of 48 mm, a total inner length of 213 mm, and a volume of approximately 381 mm 3 .
  • Its cross-sectional structure is a layered structure, in which there is a plastic layer 7 made entirely of high-density polyethylene resin, the wall thickness of the cylindrical barrel portion is 1.15 mm, and a gas barrier layer made up of a PE bonding layer, an AL foil layer, a PET layer, and an outermost OPP layer is provided on the exterior periphery thereof.
  • the cylindrical opening portion 9 of cartridge body A is sealed by fusing a seal film 10 made up of aluminum laminated film to the interior surface of the lid portion 6 .
  • a tapered nozzle 4 made of low-density polyethylene is threadedly engaged with the cylindrical opening portion 9 .
  • a mixture of polybutene and microcrystalline wax (mixing ratio: 6:4) is applied to a region extending up to 50 mm from the other end of the interior peripheral surface of the cartridge body.
  • the shape and dimensions of the resultant cartridge body B were identical to those of Example 1. Its cross-sectional structure, however, was a layered structure, wherein a gas barrier layer made up of a PE bonding layer, an AL foil layer, a PET layer, and an innermost OPP layer was provided on the interior periphery of the cylindrical barrel portion.
  • cartridge body B had a seal film 10 fused to the lid portion 6 , a threadedly engaged nozzle 4 , and a mixture of polybutene and microcrystalline wax (mixing ratio: 6:4) applied to the interior peripheral surface of the opening portion at the other end.
  • a cartridge body C with a cylindrical barrel portion that did not have a gas barrier layer was fabricated by insert injection molding using the same injection molding resin and lid portion as in Example 1, but without using the composite film.
  • the shape and dimensions of the resultant cartridge body C were identical to those of Example 1. However, its cross-sectional structure did not have a gas barrier layer.
  • cartridge body C had a seal film 10 fused to the lid portion 6 , a threadedly engaged nozzle 4 , and a mixture of polybutene and microcrystalline wax (mixing ratio: 6:4) applied to the interior peripheral surface of the opening portion at the other end.
  • the cartridge bodies obtained in Examples 1 and 2 and in Comparative Example 1 were filled with 30 g of calcium chloride and tightly sealed by fitting therein a pressing plunger 3 with a wall thickness of 1.1 mm made of the same high-density polyethylene as each of the cartridge bodies.
  • the cartridges were held for 20 weeks at a temperature of 40° C. under an atmosphere that had a relative humidity of 90%, whereupon moisture permeability (mg) was obtained from the increase in weight.
  • a dealcoholation-type moisture-curable silicone sealing agent A was prepared by mixing 50 parts by weight of a polydimethylsiloxane with a viscosity of 17000 mPa-s at 25° C. having both terminal ends of the molecular chain blocked with dimethylhydroxysiloxy groups, 50 parts by weight of calcium carbonate (prepared by precipitation, with a BET specific surface area of 18 m 2 /g and surface-treated with fatty acid), 3.0 parts by weight of methyltrimethoxysilane, and 1.0 part by weight of di(isopropoxy)titanium-di(ethylacetoacetate) to homogeneity at room temperature.
  • BET specific surface area refers to a BET specific surface area obtained by the nitrogen adsorption method.
  • dealcoholation-type refers to a type, wherein alcohol is obtained as a reaction by-product when cured, with the alcohol in many cases capable of forming gas bubbles in the sealing agent by vaporization.
  • the cartridge bodies A of Example 1 were filled with the above-described moisture-curable silicone sealing agent A and tightly sealed by fitting, in the opening section, a pressing plunger 3 with a wall thickness of 1.1 mm fabricated by injection molding using the same high-density polyethylene as the cartridge bodies A.
  • the cartridges A filled with such a silicone sealing agent were left to stand for 4 weeks, 8 weeks, 12 weeks, 16 weeks and 20 weeks under an accelerated aging condition at a temperature of 20° C. that had a relative humidity of 90%.
  • the tests described below were performed on cartridges after each aging period to inspect for the presence of cured material and forming. In addition, the same tests were conducted on cartridge bodies obtained in other examples and in the Comparative Example.
  • a joint was provided by arranging two 12 mm ⁇ 50 mm ⁇ 6 mm (width ⁇ length ⁇ height) strips of backup material parallel to each other, with an interval of 12 mm, on a 50 mm ⁇ 50 mm ⁇ 5 mm glass test panel.
  • the glass test panel was placed in an oven at 50° C. and removed from the oven 24 hours later, whereupon the moisture-curable silicone sealing agent A that had been held for the predetermined period of time under the same conditions as in the above-described storage stability test (2), was immediately applied into the joint and, after touching it up with a spatula, the silicone sealing agent was then cured by keeping it for 7 days at a temperature of 25° C. under an atmosphere that had a relative humidity of 50%. Subsequently, the interface between the silicone sealing agent and the glass test panel was examined for the presence of air bubbles.
  • a dealcoholation-type moisture-curable silicone sealing agent B was prepared by mixing 50 parts by weight of a polydimethylsiloxane with a viscosity of 17000 mPa-s at 25° C. having both terminal ends of the molecular chain blocked with dimethylhydroxysiloxy groups, 15 parts by weight of liquid paraffin (HYDROSEAL G 400H from TOTAL SOLVENTS), 50 parts by weight of calcium carbonate (prepared by precipitation, with a BET specific surface area of 18 m 2 /g and surface-treated with fatty acid), 3.0 parts by weight of methyltrimethoxysilane, and 1.0 part by weight of di(isopropoxy)titanium-di(ethylacetoacetate) to homogeneity at room temperature.
  • HYDROSEAL G 400H from TOTAL SOLVENTS
  • calcium carbonate prepared by precipitation, with a BET specific surface area of 18 m 2 /g and surface-treated with fatty acid
  • the cartridge bodies B obtained in Example 2 were filled with the above-described moisture-curable silicone sealing agent B and tightly sealed by fitting, in the opening section, a pressing plunger 3 with a wall thickness of 1.1 mm fabricated by injection molding using the same high-density polyethylene as the cartridge bodies B.
  • the cartridges B filled with such a silicone sealing agent were held for 240 hours, 550 hours, 840 hours, and 1200 hours under an accelerated aging condition at a temperature of 25° C. that had a relative humidity of 50%.
  • the tests described below were run on cartridges after each aging period to inspect for the change of cartridge body total length and presence of liquid paraffin. In addition, the same tests were conducted on cartridge bodies obtained in Example 1 and in Comparative Example 1.
  • the total length in the longitudinal direction of the cylindrical barrel portions of the cartridge bodies A-C filled with the moisture-curable silicone sealing agent B prior to holding them was subjected to measurement. The measured values were used as the initial total length (mm) of the cartridge bodies.
  • the total length of the cartridge bodies A-C filled with the silicone sealing agent which had been stored for a predetermined period of time, as mentioned above, under the accelerated aging condition, was subjected to measurement and expressed as a difference (mm) from the initial total length of the cartridge bodies.
  • the cartridge bodies A-C filled with the silicone sealing agent were left to stand for 1200 hours, whereupon the cartridge bodies were cut in two to check for air penetration and presence of cured material around the plunger. Because when air penetration was present, voids were generated inside the cartridge and liquid paraffin separated from the sealing agent at the interface with the voids bled out, air penetration was determined by visually checking for the presence of liquid paraffin separation. At such time, cases wherein no liquid paraffin separation was found around the plunger were designated as “o”; cases wherein slight separation was found were designated as “ ⁇ ”; and cases wherein clear separation was found were designated as “x”.
  • Table 1 lists the results obtained by examining the cartridge bodies A-C fabricated in the Examples and in the Comparative Example to determine their moisture permeability, the presence of micro-particles of cured moisture-curable silicone sealing agent A contained in the cartridges, and the presence of foaming.
  • the cartridge of Example 1, which utilizes a cartridge body A having a gas barrier layer provided on the exterior periphery of the cylindrical barrel portion, and the cartridge of Example 2, which utilizes a cartridge body B having a gas barrier layer provided on the exterior periphery of the cylindrical barrel portion, have low moisture permeability, with no cured material produced inside the cartridges and no sealing agent foaming occurring in the test panel joint even after leaving the cartridges to hold for 20 weeks under accelerated aging conditions.
  • the cartridge of Comparative Example 1 which utilized cartridge body C that had no gas barrier layer 8 provided in the cylindrical barrel portion, exhibited high moisture permeability, produced sealing agent foaming after holding for 12 weeks, and produced cured material in the cartridge after holding for 16 weeks under the accelerated aging conditions.
  • Table 1 lists the results obtained by examining the cartridge bodies A-C prepared in the Examples and in the Comparative Example to determine the total length of the cartridges after holding for the prescribed time, air penetration, and the presence of micro-particles of cured moisture-curable silicone sealing agent B contained in the cartridges.
  • Example 2 which utilized cartridge body B having a gas barrier layer provided on the interior periphery of the cylindrical barrel portion, and that of Example 1, which utilized cartridge body A having a gas barrier layer provided on the exterior periphery of the cylindrical barrel portion, exhibited a change of below than 1 mm in the total length of the cartridge body even after holding for 1200 hours under accelerated aging conditions. Moreover, there was almost no liquid paraffin exudate generated due to air penetration around the plunger and no cured material was produced inside the cartridge even after holding for 1200 hours under accelerated aging conditions. In particular, cartridge body B used in Example 2, which had a gas barrier layer provided on the interior periphery of the cylindrical barrel portion, revealed no liquid paraffin exudate due to air penetration and thus had extremely good gas barrier properties.
  • the cartridge of Comparative Example 1 which utilized cartridge body C having no gas barrier layer in the cylindrical barrel portion, exhibited a change of over 1 mm in the total length of the cartridge body. Moreover, there was liquid paraffin exudate generated due to air penetration around the plunger and cured material was produced inside the cartridge after holding for 1200 hours under accelerated aging conditions.
  • Example 1 Moisture 60 60 450 permeability (mg) Long-term storage stability Cured Foaming Cured Foaming Cured Foaming After 2 weeks No None No None No None After 4 weeks No None No None No None After 8 weeks No None No None No None After 12 weeks No None No None No Yes After 16 weeks No None No None Yes Yes After 20 weeks No None No None Yes Yes Total length of 216.7 216.7 216.3 cartridge body (mm): Initial After 240 hours 0.2 0.0 0.3 After 550 hours 0.3 0.1 0.7 After 840 hours 0.5 0.0 1.1 After 1200 hours 0.7 0.1 1.4 Aeration ⁇ ⁇ x Cured material None None Yes

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  • Mechanical Engineering (AREA)
  • Tubes (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
US11/720,639 2004-12-01 2005-11-30 Cartridge for Viscous Fluid Materials Abandoned US20080156831A1 (en)

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JP2004349075 2004-12-01
JP2004-349075 2004-12-01
PCT/JP2005/021964 WO2006059628A1 (ja) 2004-12-01 2005-11-30 粘性流動物用カートリッジ

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JP (1) JPWO2006059628A1 (zh)
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US20090057338A1 (en) * 2003-06-18 2009-03-05 3M Innovative Properties Company Dispensing cartridge
US20120175384A1 (en) * 2009-09-22 2012-07-12 Medmix Systems Ag Sealed container comprising a displaceable piston
US20140117046A1 (en) * 2011-10-17 2014-05-01 Sulzer Mixpac Ag Cartridge, method of manufacturing same and multicomponent cartridge
US20140203023A1 (en) * 2011-10-17 2014-07-24 Sulzer Mixpac Ag Cartridge and multicomponent cartridge
US9731317B2 (en) 2014-10-15 2017-08-15 Sonoco Development, Inc. Device for holding and dispensing viscous material
US10667556B2 (en) * 2015-02-25 2020-06-02 Lumenary, Inc. Handheld apparatus for vaporization of plant-based or synthetic compounds by laser
WO2020193624A1 (en) * 2019-03-27 2020-10-01 Ritter Gmbh Barrier cartridge having a piston
US11020530B2 (en) * 2016-04-25 2021-06-01 Terumo Kabushiki Kaisha Syringe barrel for pre-filled syringe, syringe system, and pre-filled syringe
US11390452B2 (en) * 2018-04-27 2022-07-19 Joel Shalowitz Food container and dispenser
USD988098S1 (en) * 2021-07-01 2023-06-06 Anthony Thompson Replacement caulking tip
WO2024115518A1 (de) * 2022-12-01 2024-06-06 Ritter Gmbh Kartusche und kolben sowie system aus kartusche und kolben mit barrierefunktion

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CN103958072B (zh) * 2011-11-22 2016-08-31 多友企业株式会社 密封胶用筒
EP3263482B1 (en) 2016-07-01 2018-09-19 Sulzer Mixpac AG Cartridge, core, mold and method of manufacturing a cartridge
EP3681818B1 (de) * 2018-09-07 2024-01-03 Wacker Chemie AG Verfahren zur verpackung von siliconmassen
TR201903775A2 (tr) * 2019-03-13 2019-04-22 Ykc Plastik Ambalaj Ve Kapak Sanayi Ticaret Ltd Sirketi Şeffaf ölçek göstergeli̇ ve çok katmanli tüp
TW202138198A (zh) * 2020-01-29 2021-10-16 日商住友化學股份有限公司 膜捲筒

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US6343718B1 (en) * 1998-10-15 2002-02-05 Loctite Corporation Unit dose dispense package
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* Cited by examiner, † Cited by third party
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US9005178B2 (en) * 2003-06-18 2015-04-14 3M Innovative Properties Company Dispensing cartridge
US20090057338A1 (en) * 2003-06-18 2009-03-05 3M Innovative Properties Company Dispensing cartridge
US20120175384A1 (en) * 2009-09-22 2012-07-12 Medmix Systems Ag Sealed container comprising a displaceable piston
US10105731B2 (en) * 2011-10-17 2018-10-23 Sulzer Mixpac Ag Cartridge, method of manufacturing same and multicomponent cartridge
US20140203023A1 (en) * 2011-10-17 2014-07-24 Sulzer Mixpac Ag Cartridge and multicomponent cartridge
AU2012325253B2 (en) * 2011-10-17 2016-11-17 Sulzer Mixpac Ag Cartridge, method for producing said cartridge, and multi-component cartridge
US9555928B2 (en) * 2011-10-17 2017-01-31 Sulzer Mixpac Ag Cartridge and multicomponent cartridge
US20140117046A1 (en) * 2011-10-17 2014-05-01 Sulzer Mixpac Ag Cartridge, method of manufacturing same and multicomponent cartridge
US9731317B2 (en) 2014-10-15 2017-08-15 Sonoco Development, Inc. Device for holding and dispensing viscous material
US10667556B2 (en) * 2015-02-25 2020-06-02 Lumenary, Inc. Handheld apparatus for vaporization of plant-based or synthetic compounds by laser
US11103655B2 (en) 2015-02-25 2021-08-31 Lumenary, Inc. Handheld apparatus for vaporization of plant-based or synthetic compounds by laser
US11666706B2 (en) 2016-04-25 2023-06-06 Terumo Kabushiki Kaisha Syringe barrel and pre-filled syringe
US11020530B2 (en) * 2016-04-25 2021-06-01 Terumo Kabushiki Kaisha Syringe barrel for pre-filled syringe, syringe system, and pre-filled syringe
US11390452B2 (en) * 2018-04-27 2022-07-19 Joel Shalowitz Food container and dispenser
WO2020193624A1 (en) * 2019-03-27 2020-10-01 Ritter Gmbh Barrier cartridge having a piston
USD988098S1 (en) * 2021-07-01 2023-06-06 Anthony Thompson Replacement caulking tip
WO2024115518A1 (de) * 2022-12-01 2024-06-06 Ritter Gmbh Kartusche und kolben sowie system aus kartusche und kolben mit barrierefunktion

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EP1829796A4 (en) 2013-04-10
CN101124127B (zh) 2010-06-16
TW200628374A (en) 2006-08-16
CN101124127A (zh) 2008-02-13
JPWO2006059628A1 (ja) 2008-06-05
TWI376340B (en) 2012-11-11
EP1829796A1 (en) 2007-09-05
WO2006059628A1 (ja) 2006-06-08

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