US20160221706A1 - Delamination container - Google Patents
Delamination container Download PDFInfo
- Publication number
- US20160221706A1 US20160221706A1 US15/021,311 US201415021311A US2016221706A1 US 20160221706 A1 US20160221706 A1 US 20160221706A1 US 201415021311 A US201415021311 A US 201415021311A US 2016221706 A1 US2016221706 A1 US 2016221706A1
- Authority
- US
- United States
- Prior art keywords
- layer body
- outer layer
- container
- sub
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000032798 delamination Effects 0.000 title claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 16
- 229920013716 polyethylene resin Polymers 0.000 claims abstract description 15
- 239000004743 Polypropylene Substances 0.000 claims abstract description 14
- -1 polypropylene Polymers 0.000 claims abstract description 13
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 267
- 239000012080 ambient air Substances 0.000 claims description 15
- 229920001903 high density polyethylene Polymers 0.000 claims description 10
- 239000004700 high-density polyethylene Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 229920005672 polyolefin resin Polymers 0.000 claims description 8
- 238000000071 blow moulding Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000003570 air Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- FDSYTWVNUJTPMA-UHFFFAOYSA-N 2-[3,9-bis(carboxymethyl)-3,6,9,15-tetrazabicyclo[9.3.1]pentadeca-1(15),11,13-trien-6-yl]acetic acid Chemical compound C1N(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC2=CC=CC1=N2 FDSYTWVNUJTPMA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 2
- 229920000554 ionomer Polymers 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical group OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Images
Classifications
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- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
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- 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
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- B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
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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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
- B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3041—Preforms or parisons made of several components having components being extruded
- B29C2949/3042—Preforms or parisons made of several components having components being extruded having two or more components being extruded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
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- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
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- B32B2307/40—Properties of the layers or laminate having particular optical properties
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Definitions
- the present disclosure relates to a delamination container including an outer layer body constituting an outer shell of the container and an inner layer body laminated on the inner side of the outer layer body in a manner such that the inner layer body is peelable from the outer layer body.
- a peelable laminated container i.e., a delamination container
- an outer layer body that constitutes an outer shell of the container and an inner layer body that is laminated on the inner side of the outer layer body in a peelable manner and that is deformable to undergo volume reduction
- ambient air is introduced between the outer layer body and the inner layer body, and only the inner layer body undergoes volume reduction.
- the delamination container include a blow molded container including the outer layer body made of a polypropylene resin (PP) and the inner layer body made of a nylon resin (PA) as described in Patent Literature 1.
- a blow molded container may be obtained by preparing a cylindrical laminated parison by co-extruding the resins in a molten state through as die and by blow molding the prepared laminated parison.
- the outer layer body is still made of a polypropylene resin and the inner layer body is made of an ethylene-vinyl alcohol copolymer resin (EVOH) to achieve even higher gas barrier properties in such a container
- EVOH ethylene-vinyl alcohol copolymer resin
- variation in dimension of the container obtained by blow molding tends to increase.
- a gap is formed between a mouth of a container and a dispensing plug mounted to the mouth, sometimes leading to leakage of air present between the outer layer body and the inner layer body through the gap.
- the present disclosure is to solve the above problem, and the present disclosure is to provide a novel delamination container having high gas barrier properties and dimension stability.
- a delamination container including: an outer layer body constituting an outer shell of the container; and an inner layer body that is laminated on an inner side of the outer layer body in a manner such that the inner layer body is peelable from the outer hoer body, that contains an ethylene-vinyl alcohol copolymer resin, and that is deformable to undergo volume reduction.
- the outer layer body includes an outer layer body's inside sub-layer that is located adjacent to the inner layer body and that is made of a polypropylene resin and an outer layer body's outside sub-layer that is located on an outer side of the container relative to the outer layer body's inside sub-layer and that is made of a polyethylene resin.
- the polyethylene resin may include a high-density polyethylene resin.
- An innermost layer that is located on the inner side of the container relative to the inner layer body may be provided, and the innermost layer may be made of a modified polyolefin resin.
- An outer shell sub-layer that is made of a resin different from the outer layer body's outside sub-layer and that is located on the outer side of the container relative to the outer layer body's outside sub-layer may be provided.
- a strip-shaped adhesive layer extending between the outer layer body and the inner layer body along a center axis of the container may be provided.
- the outer layer body may be provided in a bottom portion thereof with an ambient air introduction hole in the form of a bottom crack through which ambient air is introduced between the outer layer body and the inner layer body.
- the inner layer body contains an ethylene-vinyl alcohol copolymer resin high barrier properties are achieved. Furthermore, since the outer layer body's inside sub-layer is made of a polypropylene resin and the outer layer body's outside sub-layer is made of a polyethylene resin, the inner layer body may be peeled from the outer layer body smoothly, and variation in dimension of the outer layer body is reduced.
- the outer layer body When a high-density polyethylene resin is used as a polyethylene resin, the outer layer body is imparted with moderate rigidity. In this case, by bringing the container into a tilted position, the content is dispensed mainly by its own weight. Furthermore, by imparting rigidity to the outer layer body, the outer layer body is prevented from being pressed unintentionally, and an intended amount of the content may be dispensed.
- the outer layer body sometimes fails to have sufficient rigidity.
- the outer layer body may further include the outer shell sub-layer that is made of a resin different from the outer layer body's outside sub-layer and that is located on the outer side of the container relative to the outer layer body's outside sub-layer. With this structure, desired rigidity is maintained.
- the outer layer body When the outer layer body is provided in the bottom portion thereof with the ambient air introduction hole in the form of a bottom crack through which ambient air is introduced between the outer layer body and the inner layer body, since the ambient air introduction hole may be formed by blow molding, the additional step of providing the ambient air introduction hole is not necessary, and a production process of the container is simplified.
- FIG. 1 is a partial sectional side view of a delamination container, and an inside plug, a dispensing plug, and a cap body according to one of embodiments of the present disclosure
- FIG. 2 is a partial sectional side view of a delamination container, and an inside plug, a dispensing plug, and a cap body according to another embodiment of the present disclosure.
- reference numeral 1 denotes a delamination container according to one of embodiments of the present disclosure.
- the delamination container 1 includes an outer layer body 10 constituting an outer shell of the container, and an inner layer body 20 that is laminated on the inner side of the outer layer body 10 in a manner such that the inner layer body 20 is peelable from the outer layer body 10 and that may contain the content.
- the outer layer body 10 has a mouth to which an inside plug 30 and a dispensing plug 40 are mounted, and a cap body 50 is detachably mounted on the dispensing plug 40 .
- the outer layer body 10 includes a disc-shaped bottom 11 whose middle portion is curved toward the inner side, a trunk 12 connecting to an edge portion of the bottom ii and having a middle portion in the axial direction that is narrowed toward the inner side in the radial direction, and a mouth 13 connecting to an upper portion of the trunk 12 and having a cylindrical shape.
- the mouth 13 has an outer circumferential surface provided with a screw portion 13 a.
- the outer layer body 10 includes an outer layer body's inside sub-layer 14 located adjacent to the inner layer body 20 and an outer layer body's outside sub-layer 15 located on the outer side relative to the outer layer body's inside sub-layer 14 .
- the outer layer body's inside sub-layer 14 is made of a polypropylene resin (PP)
- the outer layer body's outside sub-layer 15 is made of a polyethylene resin (PE).
- the polyethylene resin (PE) include a low-density polyethylene (LDPE) and a high-density polyethylene (HDPE) resin.
- the outer layer body 10 of the present embodiment includes an outer shell sub-layer 18 located on the outer side of the container relative to the outer layer body's outside sub-layer 15 .
- Various resins different from that of the outer layer body's outside sub-layer 15 may be adopted in the outer shell sub-layer 18 .
- a polyethylene terephthalate (PET) resin a resin (PCTA) prepared by substituting isophthalic acid for a part of polycyclohexanedimethylene terephthalate, an ethylene-methacrylic acid copolymer ionomer resin (such as manufactured by Du Pont-Mitsui Polychemicals Co., Ltd.; HI-Milan is a registered trademark in Japan, other countries, or both) may be used.
- PET polyethylene terephthalate
- PCTA resin prepared by substituting isophthalic acid for a part of polycyclohexanedimethylene terephthalate
- an ethylene-methacrylic acid copolymer ionomer resin such as manufactured by Du Pont-Mitsui Polychemicals Co., Ltd.
- HI-Milan is a registered trademark in Japan, other countries, or both
- a modified polyolefin resin such as Admer® manufactured by Mitsui Chemical Co., Ltd.; Admer is a registered trademark in Japan, other countries, or both
- Disposing the outer shell sub-layer 18 further hardens the outer layer body 10 and moreover, improves glossiness and contributes to superior exterior design quality.
- the outer layer body 10 may further include a coating sub-layer 19 located on the outer side of the container relative to the outer shell sub-layer 18 .
- a the coating sub-layer 19 an ethylene-vinyl alcohol copolymer resin (EVOH) is preferably used.
- EVOH ethylene-vinyl alcohol copolymer resin
- the reason is that damage to the container is effectively prevented and that glossiness is improved. Thus, exterior design quality is further improved.
- a modified polyolefin resin may be disposed between the outer shell sub-layer 18 and the coating sub-layer 19 to further ensure bonding therebetween.
- the outer layer body 10 may also adopt a layer structure as illustrated in FIG. 2 .
- the outer layer body's outside sub-layer 15 illustrated, in FIG. 2 has a laminated structure of an outer layer body's first outside sub-layer 15 a located on the inner side and an outer layer body's second outside sub-layer 15 b located on the outer side, and the outer layer body 10 is formed by a total of three layers (the outer layer body's inside sub-layer 14 , the outer layer body's first outside sub-layer 15 a, and the outer layer body's second outside sub-layer 15 b ).
- the outer layer body's inside sub-layer 14 is made of a polypropylene resin (PP), and the outer layer body's outside sub-layer 15 is made of a high-density polyethylene resin (HDPE), and in detail, the outer layer body's first outside sub-layer 15 a is made of a recycled material of a high-density polyethylene resin, and the outer layer body's second outside sub-layer 15 b is made of a virgin material of a high-density polyethylene resin.
- PP polypropylene resin
- HDPE high-density polyethylene resin
- the outer layer body's first outside sub-layer 15 a is made of a recycled material of a high-density polyethylene resin
- the outer layer body's second outside sub-layer 15 b is made of a virgin material of a high-density polyethylene resin.
- the structure of the outer layer body's first outside sub-layer 15 a and the outer layer body's second outside sub-layer 15 b is not limited to the above example.
- a recycled material may be used in both the outer layer body's first outside sub-layer 15 a and the outer layer body's second outside sub-layer 15 b.
- a virgin material may be used in both the outer layer body's first outside sub-layer 15 a and the outer layer body's second outside sub-layer 15 b .
- one or more other layers may be laminated between the outer layer body's inside sub-layer 14 and the outer layer body's outside sub-layer 15 .
- the inner layer body 20 includes an inner layer body's outside sub-layer 21 , which is located adjacent to the outer layer body 10 and made of an ethylene-vinyl alcohol copolymer resin (EVOH). Since more oxygen permeates an ethylene-vinyl alcohol copolymer resin as humidity increases, in the present embodiment, the innermost, layer 22 is provided to coat the inner layer body's outside sub-layer 21 from the inner side to prevent direct contact between the content and the inner layer body's outside sub-layer 21 . Any resin, through which moisture is less likely to permeate and which has high compatibility with an ethylene-vinyl alcohol copolymer resin, is preferably used in the innermost layer 22 . Since it is preferable to use, in the innermost layer 22 , the same resin as that in another member to reduce the number of types of resin, a modified polyolefin resin adopted in an adhesive layer described below is used in the present embodiment.
- a modified polyolefin resin adopted in an adhesive layer described below is used in the present embodiment.
- the strip-shaped adhesive layer extending longitudinally along a center axis M of the delamination container 1 is provided to adhere the outer layer body 10 to the inner layer body 20 partially.
- the adhesive layer is preferably highly compatible with both the outer layer body 10 and the inner layer body 20 , and a modified polyolefin resin is used in the present embodiment.
- the single strip-shaped adhesive layer is provided from the bottom 11 toward the mouth 13 . Two or more strip-shaped adhesive layers may also be provided.
- the blow molded container 1 with the above structure may be obtained by preparing a cylindrical laminated parison h co-extruding the aforementioned resins in a molten state through a die and by blow molding the prepared laminated parison. At this time, a pinch-off portion 16 is formed when the laminated parison is pinched off at the time of closing mold segments in blow molding.
- the outer layer body's inside sub-layer 14 of the outer layer body 10 and the inner layer body's outside sub-layer 21 of the inner layer body 20 which are located adjacent to each other, are respectively made of a polypropylene resin and an ethylene-vinyl alcohol copolymer resin, which are less compatible with each other, the inner layer body 20 may be easily peeled from the outer layer body 10 .
- the pinch-off portion 16 there is formed an ambient air introduction hole 17 in the form Of a bottom crack through which space between the outer layer body 10 and the inner layer body 20 communicates with the outside.
- the outer layer body's outside sub-laver 15 is made of a polyethylene resin, variation in dimension of the outer layer body 10 obtained by blow molding is reduced.
- the inside plug 30 in the present embodiment includes a cylindrical wall 31 extending upright in a middle portion of the inside plug 30 , and an annular wall 32 connected to the cylindrical wall 31 via a flange. Furthermore, the inside plug 30 includes a flange portion 33 located in an upper end edge portion of the annular wall 32 and extending radially outward to abut against an upper end of the mouth 13 . Moreover, the cylindrical wall 31 includes, in a lower end portion thereof, an inclined wall 34 having a diameter decreasing in the downward direction. Moreover, the cylindrical wall 31 includes, on an inner circumferential surface thereof, a plurality of longitudinal ribs 35 located at an interval in the circumferential direction.
- a spherical body 36 is disposed on the inner side of each longitudinal rib 35 in the radial direction.
- the spherical body 36 herein is displaced by its own weight along the longitudinal rib 35 , and as illustrated in FIG, 1 , when the delamination container 1 is in an upright position, the spherical body 36 abuts against. the inclined wall 34 over the entire circumference to seal the inside of the inner layer body 20 .
- an upper end of the longitudinal rib 35 slightly bulges toward the inner side in the radial direction to prevent the spherical body 36 from slipping out.
- the dispensing plug 40 includes as dispensing tube 41 leading to the cylindrical wall 31 , and the dispensing tube 41 extends toward the outer side in the radial direction to be connected to a ceiling wall 42 located above the flange portion 33 .
- the dispensing plug 40 also includes an outer circumferential wall 43 connected with on edge portion of the ceiling wall 42 and surrounding the mouth 13 .
- the outer circumferential wall 43 has an inner circumferential surface provided with a screw portion 43 a configured in correspondence with the screw portion 13 a provided in the mouth 13 .
- the cap body 50 includes a top wall 51 that covers an upper side of the dispensing plug 40 , a circumferential wall 52 that is connected to an edge portion of the top wall 51 , and a hinge 53 at which the cap body 50 is integrally connected to the dispensing plug 40 .
- the hinge 53 may also be omitted, and the dispensing plug 40 and the cap body 50 may be provided as separate bodies that are held by, for example, screw fastening.
- the top wall 51 is provided, in a lower surface thereof, With a sealing tube 54 configured to abut against the dispensing tube 41 in a liquid tight manner.
- the top wall 51 is also provided, in a portion thereof located radially inward from the sealing tube 54 , with a pin 55 extending downward.
- the pin 55 is designed to abut against the spherical body 36 before the spherical body 36 , when being displaced upward, reaches the upper limit. This prevents the spherical body 36 from being displaced over the slip-off preventing portion provided in each longitudinal rib 35 and disengaged, even when the spherical body 36 is displaced upward forcibly due to transportation or the like.
- the cap body 50 is opened, and the delamination container 1 is brought into a tilted position.
- the spherical body 36 is displaced toward the dispensing tube 41 , and the content contained in the inner layer body 20 passes through an opening of the inclined wall 34 and between adjacent longitudinal ribs 38 by its own weight, and is dispensed from the dispensing tube 41 .
- ambient air may be introduced between the outer layer body 10 and the inner layer body 20 though the ambient air introduction hole 17 , and moreover, the outer layer body's inside sub-layer 14 of the outer layer body 10 and the inner layer body's outside sub-layer 21 of the inner layer body 20 , which are located adjacent to each other, are respectively made of a polypropylene resin and an ethylene-vinyl alcohol copolymer resin, which are less compatible with each other. Accordingly, the inner layer body 20 may be easily peeled from the outer layer body 10 , and only the inner layer body 20 may be deformed to undergo volume reduction.
- the outer layer body 10 When a high-density polyethylene resin is used as the outer layer body's outside sub-layer, the outer layer body 10 may be imparted with moderate rigidity, and accordingly, the outer layer body 10 is prevented, front being pressed unintentionally, and an intended amount of the content may be dispensed. Additionally, depending on the shape of the container, the outer layer body 10 sometimes fails to have sufficient rigidity. In this case, the outer shell sub-layer 18 and the coating sub-layer 19 as illustrated in FIG. 1 may also be provided.
- the inner layer body 20 is pressed by way of air present between the outer layer body 10 and the inner layer body 20 .
- the content may be dispensed to the last.
- some of the air present between the outer layer body 10 and the inner layer body 20 might be leaked out from the ambient air introduction hole 17 when the outer layer body 10 is pressed, leakage of the air may be reduced to minimum by adjusting the extended length and thickness of the ambient air introduction hole 17 suitably.
- the content may be dispensed from the delamination container 1 , not by the own weight of the content but by pressure applied mainly to the outer layer body 10 .
- the rigidity of the outer layer body 10 may also be adjusted arbitrarily by selectively providing the outer shell sub-layer 18 and the coating sub-layer 19 , in addition to the outer layer body's inside sub-layer 14 and the outer layer body's outside sub-layer 15 .
- Components used for dispensing the content are not limited to the inside plug 30 , the dispensing plug 40 , and the cap body 50 described above, and various other components that allow the content to be dispensed may be adopted.
- a novel delamination container having high gas barrier properties and dimension stability is provided.
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- Engineering & Computer Science (AREA)
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Abstract
Description
- The present disclosure relates to a delamination container including an outer layer body constituting an outer shell of the container and an inner layer body laminated on the inner side of the outer layer body in a manner such that the inner layer body is peelable from the outer layer body.
- As a container for containing cosmetics such as face lotion, shampoo, rinse, liquid soap, food seasonings, or the like, a peelable laminated container (i.e., a delamination container) including an outer layer body that constitutes an outer shell of the container and an inner layer body that is laminated on the inner side of the outer layer body in a peelable manner and that is deformable to undergo volume reduction has been known. In such a delamination container, in response to dispensing of the content contained in the inner layer body, ambient air is introduced between the outer layer body and the inner layer body, and only the inner layer body undergoes volume reduction.
- Known examples of the delamination container include a blow molded container including the outer layer body made of a polypropylene resin (PP) and the inner layer body made of a nylon resin (PA) as described in Patent Literature 1. Such a blow molded container may be obtained by preparing a cylindrical laminated parison by co-extruding the resins in a molten state through as die and by blow molding the prepared laminated parison.
- PTL 1: JP 2008207860A
- PTL 2: JP 2008110791A
- Meanwhile, when the outer layer body is still made of a polypropylene resin and the inner layer body is made of an ethylene-vinyl alcohol copolymer resin (EVOH) to achieve even higher gas barrier properties in such a container, variation in dimension of the container obtained by blow molding tends to increase. As a result, a gap is formed between a mouth of a container and a dispensing plug mounted to the mouth, sometimes leading to leakage of air present between the outer layer body and the inner layer body through the gap. The variation in dimension is evident especially when a means for cutting and removing an unwanted flash above the mouth by pushing in the plug from above the laminated parison secured by mold segments during blow molding is used, along with a polypropylene resin with a high melt flow rate used in the outer layer body (for example, refer to Patent Literature 2).
- As a way to address the above, an attempt has been made to improve stability in dimension by making the outer layer body with a polyethylene resin (PE). However, in this case, the peelability of an ethylene-vinyl alcohol copolymer resin as the inner layer body, with respect to a polyethylene resin, is deteriorated, and volume reduction, of the inner layer body is hindered, and as a result, the content might not be dispensed smoothly.
- The present disclosure is to solve the above problem, and the present disclosure is to provide a novel delamination container having high gas barrier properties and dimension stability.
- One of aspects of the present disclosure resides in a delamination container, including: an outer layer body constituting an outer shell of the container; and an inner layer body that is laminated on an inner side of the outer layer body in a manner such that the inner layer body is peelable from the outer hoer body, that contains an ethylene-vinyl alcohol copolymer resin, and that is deformable to undergo volume reduction. The outer layer body includes an outer layer body's inside sub-layer that is located adjacent to the inner layer body and that is made of a polypropylene resin and an outer layer body's outside sub-layer that is located on an outer side of the container relative to the outer layer body's inside sub-layer and that is made of a polyethylene resin.
- The polyethylene resin may include a high-density polyethylene resin.
- An innermost layer that is located on the inner side of the container relative to the inner layer body may be provided, and the innermost layer may be made of a modified polyolefin resin.
- An outer shell sub-layer that is made of a resin different from the outer layer body's outside sub-layer and that is located on the outer side of the container relative to the outer layer body's outside sub-layer may be provided.
- A strip-shaped adhesive layer extending between the outer layer body and the inner layer body along a center axis of the container may be provided.
- The outer layer body may be provided in a bottom portion thereof with an ambient air introduction hole in the form of a bottom crack through which ambient air is introduced between the outer layer body and the inner layer body.
- Since, in the present disclosure, the inner layer body contains an ethylene-vinyl alcohol copolymer resin high barrier properties are achieved. Furthermore, since the outer layer body's inside sub-layer is made of a polypropylene resin and the outer layer body's outside sub-layer is made of a polyethylene resin, the inner layer body may be peeled from the outer layer body smoothly, and variation in dimension of the outer layer body is reduced.
- When a high-density polyethylene resin is used as a polyethylene resin, the outer layer body is imparted with moderate rigidity. In this case, by bringing the container into a tilted position, the content is dispensed mainly by its own weight. Furthermore, by imparting rigidity to the outer layer body, the outer layer body is prevented from being pressed unintentionally, and an intended amount of the content may be dispensed.
- When the innermost layer located on the inner side of the container relative to the inner layer body is provided and when the innermost layer is made of a modified polyolefin resin, an ethylene-vinyl alcohol copolymer resin, through which more oxygen permeates as humidity increases, is covered with a modified polyolefin resin, through which moisture is less likely to permeate. Accordingly, high gas barrier properties are maintained.
- Depending on the shape of the container, the outer layer body sometimes fails to have sufficient rigidity. In this case, the outer layer body may further include the outer shell sub-layer that is made of a resin different from the outer layer body's outside sub-layer and that is located on the outer side of the container relative to the outer layer body's outside sub-layer. With this structure, desired rigidity is maintained.
- When the strip-shaped adhesive layer extending between the outer layer body and the inner layer body along the center axis of the container is provided, a part of the inner layer body is adhered and held to the outer layer body by the adhesive layer. This prevents the defects arising from middle portions of the inner layer body contacting with each other and a part of the content remaining near the bottom of the container when the inner layer body is deformed to undergo volume reduction,
- When the outer layer body is provided in the bottom portion thereof with the ambient air introduction hole in the form of a bottom crack through which ambient air is introduced between the outer layer body and the inner layer body, since the ambient air introduction hole may be formed by blow molding, the additional step of providing the ambient air introduction hole is not necessary, and a production process of the container is simplified.
- In the accompanying drawings:
-
FIG. 1 is a partial sectional side view of a delamination container, and an inside plug, a dispensing plug, and a cap body according to one of embodiments of the present disclosure; and -
FIG. 2 is a partial sectional side view of a delamination container, and an inside plug, a dispensing plug, and a cap body according to another embodiment of the present disclosure. - The present disclosure will be described in more detail below with reference to the drawings.
- In
FIG. 1 , reference numeral 1 denotes a delamination container according to one of embodiments of the present disclosure. The delamination container 1 includes anouter layer body 10 constituting an outer shell of the container, and aninner layer body 20 that is laminated on the inner side of theouter layer body 10 in a manner such that theinner layer body 20 is peelable from theouter layer body 10 and that may contain the content. Theouter layer body 10 has a mouth to which an inside plug 30 and a dispensingplug 40 are mounted, and acap body 50 is detachably mounted on the dispensingplug 40. - The
outer layer body 10 includes a disc-shaped bottom 11 whose middle portion is curved toward the inner side, atrunk 12 connecting to an edge portion of the bottom ii and having a middle portion in the axial direction that is narrowed toward the inner side in the radial direction, and amouth 13 connecting to an upper portion of thetrunk 12 and having a cylindrical shape. Themouth 13 has an outer circumferential surface provided with ascrew portion 13 a. - The
outer layer body 10 includes an outer layer body's insidesub-layer 14 located adjacent to theinner layer body 20 and an outer layer body's outsidesub-layer 15 located on the outer side relative to the outer layer body's insidesub-layer 14. Herein, the outer layer body's insidesub-layer 14 is made of a polypropylene resin (PP), and the outer layer body's outsidesub-layer 15 is made of a polyethylene resin (PE). Examples of the polyethylene resin (PE) include a low-density polyethylene (LDPE) and a high-density polyethylene (HDPE) resin. - As illustrated in
FIG. 1 , theouter layer body 10 of the present embodiment includes an outer shell sub-layer 18 located on the outer side of the container relative to the outer layer body's outsidesub-layer 15. Various resins different from that of the outer layer body's outsidesub-layer 15 may be adopted in the outer shell sub-layer 18. For example, a polyethylene terephthalate (PET) resin, a resin (PCTA) prepared by substituting isophthalic acid for a part of polycyclohexanedimethylene terephthalate, an ethylene-methacrylic acid copolymer ionomer resin (such as manufactured by Du Pont-Mitsui Polychemicals Co., Ltd.; HI-Milan is a registered trademark in Japan, other countries, or both) may be used. Additionally, when PET, PCTA, an ethylene-methacrylic acid copolymer ionomer resin, or the like as described above is used, a modified polyolefin resin (such as Admer® manufactured by Mitsui Chemical Co., Ltd.; Admer is a registered trademark in Japan, other countries, or both) is preferably disposed between the resin and theouter layer body 10 to ensure bonding therebetween. Disposing the outer shell sub-layer 18 further hardens theouter layer body 10 and moreover, improves glossiness and contributes to superior exterior design quality. - The
outer layer body 10 may further include a coating sub-layer 19 located on the outer side of the container relative to the outer shell sub-layer 18. A the coating sub-layer 19, an ethylene-vinyl alcohol copolymer resin (EVOH) is preferably used. The reason is that damage to the container is effectively prevented and that glossiness is improved. Thus, exterior design quality is further improved. Additionally, depending on compatibility between the outer shell sub-layer 18 and the coating sub-layer 19, a modified polyolefin resin may be disposed between the outer shell sub-layer 18 and the coating sub-layer 19 to further ensure bonding therebetween. - The
outer layer body 10 may also adopt a layer structure as illustrated inFIG. 2 . The outer layer body's outsidesub-layer 15 illustrated, inFIG. 2 has a laminated structure of an outer layer body's first outsidesub-layer 15 a located on the inner side and an outer layer body's second outsidesub-layer 15 b located on the outer side, and theouter layer body 10 is formed by a total of three layers (the outer layer body's insidesub-layer 14, the outer layer body's first outsidesub-layer 15 a, and the outer layer body's second outsidesub-layer 15 b). Herein, the outer layer body'sinside sub-layer 14 is made of a polypropylene resin (PP), and the outer layer body'soutside sub-layer 15 is made of a high-density polyethylene resin (HDPE), and in detail, the outer layer body's firstoutside sub-layer 15 a is made of a recycled material of a high-density polyethylene resin, and the outer layer body's secondoutside sub-layer 15 b is made of a virgin material of a high-density polyethylene resin. By using a virgin material in the outer layer body's secondoutside sub-layer 15 b, high appearance quality is achieved even though a recycled material is used in the outer layer body's firstoutside sub-layer 15 a. The structure of the outer layer body's firstoutside sub-layer 15 a and the outer layer body's secondoutside sub-layer 15 b is not limited to the above example. When, for example, appearance quality does not need to be very high or may be compensated by using an exterior film or the like, to cover theouter layer body 10, is used, a recycled material may be used in both the outer layer body's firstoutside sub-layer 15 a and the outer layer body's secondoutside sub-layer 15 b. Furthermore, when, for example, there is not a great difference in superiority in cost, a virgin material may be used in both the outer layer body's firstoutside sub-layer 15 a and the outer layer body's secondoutside sub-layer 15 b. Additionally, one or more other layers may be laminated between the outer layer body'sinside sub-layer 14 and the outer layer body'soutside sub-layer 15. - As illustrated in
FIGS. 1 and 2 , theinner layer body 20 includes an inner layer body'soutside sub-layer 21, which is located adjacent to theouter layer body 10 and made of an ethylene-vinyl alcohol copolymer resin (EVOH). Since more oxygen permeates an ethylene-vinyl alcohol copolymer resin as humidity increases, in the present embodiment, the innermost,layer 22 is provided to coat the inner layer body'soutside sub-layer 21 from the inner side to prevent direct contact between the content and the inner layer body'soutside sub-layer 21. Any resin, through which moisture is less likely to permeate and which has high compatibility with an ethylene-vinyl alcohol copolymer resin, is preferably used in theinnermost layer 22. Since it is preferable to use, in theinnermost layer 22, the same resin as that in another member to reduce the number of types of resin, a modified polyolefin resin adopted in an adhesive layer described below is used in the present embodiment. - Between the
outer layer body 10 and theinner layer body 20, although not illustrated, the strip-shaped adhesive layer extending longitudinally along a center axis M of the delamination container 1 is provided to adhere theouter layer body 10 to theinner layer body 20 partially. The adhesive layer is preferably highly compatible with both theouter layer body 10 and theinner layer body 20, and a modified polyolefin resin is used in the present embodiment. In the present embodiment, the single strip-shaped adhesive layer is provided from the bottom 11 toward themouth 13. Two or more strip-shaped adhesive layers may also be provided. - The blow molded container 1 with the above structure may be obtained by preparing a cylindrical laminated parison h co-extruding the aforementioned resins in a molten state through a die and by blow molding the prepared laminated parison. At this time, a pinch-
off portion 16 is formed when the laminated parison is pinched off at the time of closing mold segments in blow molding. Since the outer layer body'sinside sub-layer 14 of theouter layer body 10 and the inner layer body'soutside sub-layer 21 of theinner layer body 20, which are located adjacent to each other, are respectively made of a polypropylene resin and an ethylene-vinyl alcohol copolymer resin, which are less compatible with each other, theinner layer body 20 may be easily peeled from theouter layer body 10. As a result, in the pinch-off portion 16, there is formed an ambient air introduction hole 17 in the form Of a bottom crack through which space between theouter layer body 10 and theinner layer body 20 communicates with the outside. Furthermore, since the outer layer body'soutside sub-laver 15 is made of a polyethylene resin, variation in dimension of theouter layer body 10 obtained by blow molding is reduced. - The
inside plug 30 in the present embodiment includes a cylindrical wall 31 extending upright in a middle portion of theinside plug 30, and anannular wall 32 connected to the cylindrical wall 31 via a flange. Furthermore, theinside plug 30 includes aflange portion 33 located in an upper end edge portion of theannular wall 32 and extending radially outward to abut against an upper end of themouth 13. Moreover, the cylindrical wall 31 includes, in a lower end portion thereof, aninclined wall 34 having a diameter decreasing in the downward direction. Moreover, the cylindrical wall 31 includes, on an inner circumferential surface thereof, a plurality of longitudinal ribs 35 located at an interval in the circumferential direction. - Moreover, a
spherical body 36 is disposed on the inner side of each longitudinal rib 35 in the radial direction. Thespherical body 36 herein is displaced by its own weight along the longitudinal rib 35, and as illustrated in FIG, 1, when the delamination container 1 is in an upright position, thespherical body 36 abuts against. theinclined wall 34 over the entire circumference to seal the inside of theinner layer body 20. Additionally, an upper end of the longitudinal rib 35 slightly bulges toward the inner side in the radial direction to prevent thespherical body 36 from slipping out. - The dispensing
plug 40 includes as dispensingtube 41 leading to the cylindrical wall 31, and the dispensingtube 41 extends toward the outer side in the radial direction to be connected to aceiling wall 42 located above theflange portion 33. The dispensingplug 40 also includes an outercircumferential wall 43 connected with on edge portion of theceiling wall 42 and surrounding themouth 13. The outercircumferential wall 43 has an inner circumferential surface provided with ascrew portion 43 a configured in correspondence with thescrew portion 13 a provided in themouth 13. With the above structure, the dispensingplug 40 is screw fastened to themouth 13, with theinside plug 30 being sandwiched therebetween. A lower portion of the outercircumferential wall 43 is in air tight abutment with the outer circumferential surface of themouth 13, thereby effectively preventing leakage of air introduced between theouter layer body 10 and theinner layer body 20. - The
cap body 50 includes atop wall 51 that covers an upper side of the dispensingplug 40, acircumferential wall 52 that is connected to an edge portion of thetop wall 51, and ahinge 53 at which thecap body 50 is integrally connected to the dispensingplug 40. Thehinge 53 may also be omitted, and the dispensingplug 40 and thecap body 50 may be provided as separate bodies that are held by, for example, screw fastening. Thetop wall 51 is provided, in a lower surface thereof, With a sealingtube 54 configured to abut against the dispensingtube 41 in a liquid tight manner. Thetop wall 51 is also provided, in a portion thereof located radially inward from the sealingtube 54, with apin 55 extending downward. Thepin 55 is designed to abut against thespherical body 36 before thespherical body 36, when being displaced upward, reaches the upper limit. This prevents thespherical body 36 from being displaced over the slip-off preventing portion provided in each longitudinal rib 35 and disengaged, even when thespherical body 36 is displaced upward forcibly due to transportation or the like. - To dispense the content from the delamination container 1 with the above structure, the
cap body 50 is opened, and the delamination container 1 is brought into a tilted position. By doing so, thespherical body 36 is displaced toward the dispensingtube 41, and the content contained in theinner layer body 20 passes through an opening of theinclined wall 34 and between adjacent longitudinal ribs 38 by its own weight, and is dispensed from the dispensingtube 41. At this time, ambient air may be introduced between theouter layer body 10 and theinner layer body 20 though the ambient air introduction hole 17, and moreover, the outer layer body'sinside sub-layer 14 of theouter layer body 10 and the inner layer body'soutside sub-layer 21 of theinner layer body 20, which are located adjacent to each other, are respectively made of a polypropylene resin and an ethylene-vinyl alcohol copolymer resin, which are less compatible with each other. Accordingly, theinner layer body 20 may be easily peeled from theouter layer body 10, and only theinner layer body 20 may be deformed to undergo volume reduction. When a high-density polyethylene resin is used as the outer layer body's outside sub-layer, theouter layer body 10 may be imparted with moderate rigidity, and accordingly, theouter layer body 10 is prevented, front being pressed unintentionally, and an intended amount of the content may be dispensed. Additionally, depending on the shape of the container, theouter layer body 10 sometimes fails to have sufficient rigidity. In this case, the outer shell sub-layer 18 and the coating sub-layer 19 as illustrated inFIG. 1 may also be provided. - As dispensing, of the content progresses and the remaining amount of the content starts to decrease, due to the decreasing weight of the content as a whole, it might becomes difficult to dispense the content simply by tilting the delamination container 1 in this case, by pressing the
trunk 12 of theouter layer body 10 with a more or less strong force, theinner layer body 20 is pressed by way of air present between theouter layer body 10 and theinner layer body 20. Thus, the content may be dispensed to the last. Although some of the air present between theouter layer body 10 and theinner layer body 20 might be leaked out from the ambient air introduction hole 17 when theouter layer body 10 is pressed, leakage of the air may be reduced to minimum by adjusting the extended length and thickness of the ambient air introduction hole 17 suitably. - The content may be dispensed from the delamination container 1, not by the own weight of the content but by pressure applied mainly to the
outer layer body 10. - The rigidity of the
outer layer body 10 may also be adjusted arbitrarily by selectively providing the outer shell sub-layer 18 and the coating sub-layer 19, in addition to the outer layer body'sinside sub-layer 14 and the outer layer body'soutside sub-layer 15. - Components used for dispensing the content are not limited to the
inside plug 30, the dispensingplug 40, and thecap body 50 described above, and various other components that allow the content to be dispensed may be adopted. - According to the present disclosure, a novel delamination container having high gas barrier properties and dimension stability is provided.
- 1 Delamination container
- 10 Outer layer body
- 11 Bottom
- 12 Trunk
- 13 Mouth
- 13 a Screw portion
- 14 Outer layer body's inside sub-layer
- 15 Outer layer body's outside sub-layer
- 15 a Outer layer body's first outside sub-layer
- 15 b Outer layer body's second outside sub-layer
- 16 Pinch-off portion
- 17 Ambient air introduction hole
- 18 Outer shell sub-layer
- 19 Coating sub-layer
- 20 Inner layer body
- 21 Inner layer body's outside sub-layer
- 22 Innermost layer
- 30 Inside plug
- 31 Cylindrical wall
- 32 Annular wall
- 33 Flange portion
- 34 Inclined wall
- 35 Longitudinal rib
- 36 Spherical body
- 40 Dispensing plug
- 41 Dispensing tube
- 42 Ceiling wall
- 43 Outer circumferential wall
- 43 a Screw portion
- 50 Cap body
- 51 Top wall
- 53 Circumferential wall
- 53 Hinge
- 54 Sealing tube
- 55 Pin
- M Center axis of delamination container
Claims (6)
Applications Claiming Priority (5)
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JP2013-204516 | 2013-09-30 | ||
JP2013204516 | 2013-09-30 | ||
JP2014195646A JP6345062B2 (en) | 2013-09-30 | 2014-09-25 | Delamination container |
JP2014-195646 | 2014-09-25 | ||
PCT/JP2014/004983 WO2015045419A1 (en) | 2013-09-30 | 2014-09-29 | Delamination container |
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PCT/JP2014/004983 A-371-Of-International WO2015045419A1 (en) | 2013-09-30 | 2014-09-29 | Delamination container |
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US16/839,963 Division US11975885B2 (en) | 2013-09-30 | 2020-04-03 | Delamination container |
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US20160221706A1 true US20160221706A1 (en) | 2016-08-04 |
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US15/021,311 Abandoned US20160221706A1 (en) | 2013-09-30 | 2014-09-29 | Delamination container |
US16/839,963 Active 2037-04-16 US11975885B2 (en) | 2013-09-30 | 2020-04-03 | Delamination container |
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US16/839,963 Active 2037-04-16 US11975885B2 (en) | 2013-09-30 | 2020-04-03 | Delamination container |
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US (2) | US20160221706A1 (en) |
EP (1) | EP3053841B1 (en) |
JP (1) | JP6345062B2 (en) |
KR (1) | KR101812907B1 (en) |
CN (1) | CN105531189B (en) |
AU (1) | AU2014325929B2 (en) |
CA (1) | CA2924280C (en) |
WO (1) | WO2015045419A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10249891B2 (en) * | 2014-03-11 | 2019-04-02 | Sumitomo Electric Industries, Ltd. | Electrolyte-circulating battery |
DE102019203507A1 (en) * | 2019-03-15 | 2020-09-17 | Shb Gmbh | Food-compliant plastic container |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6540017B2 (en) * | 2014-12-19 | 2019-07-10 | キョーラク株式会社 | Peeling container |
JP6614940B2 (en) * | 2015-11-30 | 2019-12-04 | 株式会社吉野工業所 | Double container |
JP6912697B2 (en) * | 2016-10-14 | 2021-08-04 | キョーラク株式会社 | Laminate peeling container |
JP2018150068A (en) * | 2017-03-14 | 2018-09-27 | 北海製罐株式会社 | Polyester resin multiple bottle |
WO2019131416A1 (en) * | 2017-12-27 | 2019-07-04 | キョーラク株式会社 | Lamination-separable container |
JP7072999B2 (en) * | 2018-11-30 | 2022-05-23 | 株式会社吉野工業所 | Synthetic resin container and method for manufacturing synthetic resin container |
JP7377426B2 (en) * | 2019-01-29 | 2023-11-10 | キョーラク株式会社 | double container |
CN113272233A (en) * | 2019-11-22 | 2021-08-17 | 深圳市德昌裕塑胶制品有限公司 | Flexible pipe container formed by multi-layer co-extrusion once |
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- 2014-09-25 JP JP2014195646A patent/JP6345062B2/en active Active
- 2014-09-29 CN CN201480050195.9A patent/CN105531189B/en active Active
- 2014-09-29 CA CA2924280A patent/CA2924280C/en active Active
- 2014-09-29 KR KR1020167006553A patent/KR101812907B1/en active IP Right Grant
- 2014-09-29 WO PCT/JP2014/004983 patent/WO2015045419A1/en active Application Filing
- 2014-09-29 AU AU2014325929A patent/AU2014325929B2/en active Active
- 2014-09-29 EP EP14847791.2A patent/EP3053841B1/en active Active
- 2014-09-29 US US15/021,311 patent/US20160221706A1/en not_active Abandoned
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2020
- 2020-04-03 US US16/839,963 patent/US11975885B2/en active Active
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US5301838A (en) * | 1991-01-23 | 1994-04-12 | Continental Pet Technologies, Inc. | Multilayer bottle with separable inner layer and method for forming same |
US20050147778A1 (en) * | 2002-02-26 | 2005-07-07 | Shinji Tai | Resin composition and multi-layer structures |
US20150210788A1 (en) * | 2012-08-09 | 2015-07-30 | Kuraray Co., Ltd. | Modified ethylene-vinyl alcohol copolymer, method for producing same, and use of same |
CA2880954A1 (en) * | 2012-10-31 | 2014-05-08 | Yoshino Kogyosho Co., Ltd. | Biaxial stretch blow-molded container |
Cited By (2)
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US10249891B2 (en) * | 2014-03-11 | 2019-04-02 | Sumitomo Electric Industries, Ltd. | Electrolyte-circulating battery |
DE102019203507A1 (en) * | 2019-03-15 | 2020-09-17 | Shb Gmbh | Food-compliant plastic container |
Also Published As
Publication number | Publication date |
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AU2014325929A1 (en) | 2016-04-07 |
US20200231322A1 (en) | 2020-07-23 |
EP3053841A4 (en) | 2017-05-24 |
CA2924280A1 (en) | 2015-04-02 |
AU2014325929B2 (en) | 2016-12-22 |
EP3053841B1 (en) | 2020-12-09 |
CN105531189A (en) | 2016-04-27 |
CN105531189B (en) | 2017-02-22 |
EP3053841A1 (en) | 2016-08-10 |
US11975885B2 (en) | 2024-05-07 |
CA2924280C (en) | 2018-03-06 |
KR20160043992A (en) | 2016-04-22 |
JP2015091719A (en) | 2015-05-14 |
JP6345062B2 (en) | 2018-06-20 |
KR101812907B1 (en) | 2017-12-27 |
WO2015045419A1 (en) | 2015-04-02 |
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