AU2016201915A1 - Closure and bottle or other vessel comprising a closure - Google Patents

Abstract

A closure comprising an aluminium outer layer applied over a multilayer coextrusion liner and an application which comprises a redraw of between 1.0 and 2.4 5 mm so that when fitted to a bottle or other vessel the closure retains pressure and carbonation in a liquid stored in the bottle or other vessel to which the closure is attached is described. Also disclosed are a bottle or other vessel comprising the closure; a method of making a closure for a bottle or other vessel; a method of making a closure for a bottle or other vessel; and a method of making a bottle or 10 other vessel for storing a carbonated liquid. 1:20- 130\ y 146: 140- -- 142

Description

1 TITLE CLOSURE AND BOTTLE OR OTHER VESSEL COMPRISING A CLOSURE FIELD THIS INVENTION described herein relates generally to a closure for a bottle. In 5 particular, the invention is directed to a closure for a bottle storing a carbonated fluid, although the scope of the invention is not necessarily limited thereto. BACKGROUND Many beverages are carbonated to provide a more pleasurable drinking experience. Conventional methods to seal carbonated beverages in bottles may 10 sometimes result in the gas leaking during transport or storage. The resulting reduced carbonation reduces or destroys the drinking pleasure. Also, when bottles of carbonated beverages are opened it is not ordinarily possible to reseal the bottle without loss of carbonation. This often results in waste and also acts as a significant disincentive to people who want to have a glass or two 15 of a carbonated beverage, but do not wish to finish an entire bottle. When carbonated beverages that are sealed with a cork are opened, considerable care is required to avoid the cork flying off and possibly causing injury or damage. This is of particular concern and inconvenience in high through-put environments, such as restaurants, clubs, bars and catered events. 20 There remains a need for improved closures for storing carbonated beverages. SUMMARY The present invention is broadly directed to a closure for a bottle or other vessel. A preferred advantage of the closure for a bottle or other vessel is that it maintains or substantially maintains carbonation in a fluid stored therein. The 25 invention finds particular application to sparkling wines. In one aspect, there is provided a closure comprising: an aluminium outer layer applied over a multilayer coextrusion liner; and an application which comprises a redraw of between 1.0 and 2.4 mm so that when fitted to a bottle or other vessel the closure retains pressure and carbonation in a 30 liquid stored in the bottle. 2625826v1 2 In a second aspect there is a provided a bottle or other vessel comprising the closure of the first aspect. In a third aspect there is provided a bottle or other vessel comprising: 5 a closure comprising an aluminium outer layer applied over a multilayer coextrusion liner, the closure applied to the bottle or other vessel with an application which comprises a redraw of between 1.0 and 2.4 mm so that the closure may retain pressure and carbonation in a liquid stored in a bottle or other vessel to which the closure is attached. 10 According to the third aspect the bottle or other vessel may also comprise a container capable of storing a liquid. The container may comprise a wine bottle such as, a conventional wine bottle with a BVS (Bague Vin Suisse) finish for a screw-cap. In a fourth aspect there is a provided a method of making a closure for a bottle 15 or other vessel comprising: applying an aluminium outer layer over a multilayered coextrusion; and providing the closure with the capacity for a redraw of between 1 and 2.4 mm in the closure when fitted to the bottle or other vessel so that the closure may retain pressure and carbonation in a liquid stored in the bottle or other vessel to which the 20 closure is attached. In one embodiment of the fourth aspect the closure comprises a redraw of between 1 and 2.4 mm. In a fifth aspect there is provided a method of making a bottle or other vessel for storing a carbonated liquid, the method comprising: 25 applying a closure comprising an aluminium outer layer applied over a multilayer coextrusion liner so that the closure is applied to the bottle or other vessel with an application comprising a redraw of between 1.0 and 2.4 mm so that the closure may retain pressure and carbonation in a liquid stored in a bottle or other vessel to which the closure is attached. 30 In one embodiment of any above aspect the closure may be resealed on the 2625826v1 3 bottle or other vessel. In one embodiment of any above aspect the closure may be a resealable closure. 5 In one embodiment of any above aspect the aluminium outer layer may comprise a thickness of between 0.2 and 0.3 mm. In a preferred embodiment of any above aspect the aluminium outer layer may comprise a thickness of between 0.23 and 0.3 mm. In another embodiment of any above aspect the aluminium outer layer may 10 comprise a thickness of between 0.25 and 0.29 mm. According to any above aspect the aluminium outer layer may comprise a thickness of 0.200, 0.205, 0.210, 0.215, 0.220, 0.225, 0.230, 0.235, 0.240, 0.245, 0.250, 0.255, 0.260, 0.265, 0.270, 0.275, 0.280, 0.285, 0.290, 0.295 or 0.3 mm. In one particular embodiment of any above aspect the aluminium outer layer 15 may comprise a thickness of 0.27 mm. In one embodiment of any above aspect the multilayer coextrusion liner may comprise two or more polymers. Suitable polymers include ethylene vinyl acetate (EVA), ethylene vinyl alcohol (EVOH), polyethylene (PE) and polyvinylidene chloride (PVDC). 20 The polyethylene may be very low density polyethylene (VLDPE), low density polyethylene (LDPE), foamed low density polyethylene (FLDPE), linear low density polyethylene, medium density polyethylene (MDPE) and/or high density polyethylene (HDPE). In one embodiment of any above aspect the multilayer coextrusion liner may 25 comprise one or more layer of foamed or expanded polyethylene. The one or more layer of foamed or expanded polyethylene may be one central layer in the multilayer coextrusion liner. In one embodiment of any above aspect the multilayer coextrusion liner may comprise between 1 and 15 layers. 30 In one embodiment of any above aspect the multilayer coextrusion liner may 2625826v1 4 comprise between 3 and 12 layers. In one embodiment of any above aspect the multilayer coextrusion liner may comprise between 5 and 10 layers. In one embodiment of any above aspect the multilayer coextrusion liner may 5 comprise 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 layers. In one embodiment of any above aspect the multilayer coextrusion liner may comprise an uppermost layer comprising low density polyethylene. In one embodiment of any above aspect the multilayer coextrusion liner may comprise a lowermost layer comprising low density polyethylene. 10 In one embodiment of any above aspect the multilayer coextrusion liner may comprise an uppermost layer and a lowermost layer comprising low density polyethylene. In one embodiment of any above aspect the multilayer coextrusion liner may comprise alternating layers of low density polyethylene between layers of other 15 suitable polymers. In one particular embodiment of any above aspect the multilayer coextrusion liner may comprise an uppermost layer of low density polyethylene, a layer of ethylene vinyl alcohol, a layer of low density polyethylene, a layer of foamed or expanded low density polyethylene, a layer of low density polyethylene, a layer of ethyl vinyl alcohol 20 and a lowermost layer of low density polyethylene. In another embodiment of any above aspect the multilayer coextrusion liner may comprise Tin-Saran. In yet another embodiment of any above aspect the multilayer coextrusion liner may comprise Saranex. 25 In another embodiment of any above aspect the multilayer coextrusion liner may comprise one or more non-polymeric layer. The one or more non-polymeric layer may comprise tin and/or paper. In one embodiment of any above aspect the multilayer coextrusion liner may be between 1 and 3 mm thick. 30 In one embodiment of any above aspect the multilayer coextrusion liner may 2625826v1 5 be between 1.5 and 2.5 mm thick. In one embodiment of any above aspect the multilayer coextrusion liner may be between 1.75 and 2.25 mm thick. 5 In one embodiment of any above aspect the multilayer coextrusion liner may be 2.0 mm thick. In one embodiment of any above aspect the multilayer coextrusion liner may be 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 or 3.0 mm thick. 10 In one embodiment of any above aspect the redraw may be between 1.0 and 2.2 mm. In one embodiment of any above aspect the redraw may be between 1.4 and 2.0 mm. In one embodiment of any above aspect the redraw may be between 1.5 and 15 1.9 mm. In one embodiment of any above aspect the redraw may be between 1.6 and 1.8 mm. In one embodiment of any above aspect the redraw may be 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3 or 2.4 mm. 20 In one embodiment of any above aspect the redraw is at least 1.8 mm. In one embodiment of any above aspect the multilayer coextrusion liner may comprise a density between 100 and 500 kg in 3 . In another embodiment of any above aspect the multilayer coextrusion liner may comprise a density between 250 and 450 kg in 3 . 25 In yet another embodiment of any above aspect the multilayer coextrusion liner may comprise a density between 300 and 400 kg in 3 . In one embodiment of any above aspect the multilayer coextrusion liner may comprise a density of 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470, 480, 490 or 500 kg in 3 . 30 In one particular embodiment of any above aspect the multilayer coextrusion 2625826v1 6 liner may comprise a density of 350 kg i 3 . The closure of the first and third aspect may comprise one or more frangible part. The frangible part may comprise one or more bridge, one or more perforation 5 and or one or more cut line. The closure of the first and third aspect may comprise one or more bridge. The one or more bridge may comprise 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 bridges. The one or more bridge may span a cut line and/or perforation of the closure. 10 The pressure may be released before the one or more bridge breaks. The closure according to any above aspect may comprise one or more perforation extending along its exterior when fitted to the bottle or other vessel. The closure according to any above aspect may comprise one or more cut line along its exterior when fitted to the bottle or other vessel. 15 The closure according to any above aspect may comprise one or more bridge, one or more perforation extending along its exterior and one or more cut line extending along its exterior when fitted to the bottle or other vessel. In one embodiment according to any above aspect upon resealing with the closure carbonation is maintained or substantially maintained for at least 14 days. 20 In one embodiment according to any above aspect upon resealing with the closure carbonation is maintained or substantially maintained for at least 7 days. In one embodiment according to any above aspect upon resealing with the closure carbonation is maintained or substantially maintained for at least 6 days. In one embodiment according to any above aspect upon resealing with the 25 closure carbonation is maintained or substantially maintained for at least 5 days. In one embodiment according to any above aspect upon resealing with the closure carbonation is maintained or substantially maintained for at least 4 days. In one embodiment according to any above aspect upon resealing with the closure carbonation is maintained or substantially maintained for at least 3 days. 30 In one embodiment according to any above aspect upon resealing with the 2625826v1 7 closure carbonation is maintained or substantially maintained for at least 2 days. The closure of the first and third aspects may also comprise a tamper evident seal. The closure of any above aspect may be used for carbonated beverages with a 5 gas volume of up to 7. The closure of any above aspect may be used for carbonated beverages with a gas volume of up to 6. The closure of any above aspect may be used for carbonated beverages with a 10 gas volume of up to 5. The closure of any above aspect may not leak or substantially leak gas below 125 psi. The closure of any above aspect may not eject below 150 psi. The closure of any above aspect may comprise a head pressure of between 15 100and220kg. In another embodiment of any above aspect the closure may comprise a head pressure of between 140 and 180 kg. In another embodiment of any above aspect the closure may comprise a head pressure of 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210 or 220 kg. 20 The closure according to any above aspect may be made with a thread roller between 5 and 15 kg. The closure according to any above aspect may be made with a tuck under roller between 5 and 15 kg. As used herein, except where the context requires otherwise, the term 25 "comprise" and variations of the term, such as "comprising", "comprises" and "comprised", are not intended to exclude further additives, components, integers or steps. BRIEF DESCRIPTION OF THE DRAWINGS AND TABLES FIG. 1 shows one embodiment of the closure according to the invention. 30 TABLE 1 lists the sequence of polymer layers in the multilayer coextrusion 2625826v1 8 liner according to one embodiment of the invention. TABLE 2: Migration Properties of Closure 100. DETAILED DESCRIPTION The inventors have produced a closure and bottle or other vessel with 5 particular application to carbonated beverages. Further, as exemplified herein, the inventors have provided a method for making the closure and bottle or other vesselof the invention. While the invention is described below with reference to a closure alone, it is to be understood that the closure of the invention may be fitted to a bottle or vessel. 10 Surprisingly, as exemplified herein the inventors have provided a closure and method for making a closure that has improved carbonation retaining properties. The present invention has many advantages including better retaining carbonation for a more pleasant drinking experience and re-sealability of carbonated beverages to eliminate, or at least reduce waste. Advantageously, the closure of the invention has 15 been shown to reseal sparkling wine and maintain carbonation for 2 weeks or more. The closure may comprise an aluminium outer layer that is applied over a multilayer coextrusion liner. The aluminium outer layer may have a thickness of between 0.2 and 0.3 mm; 0.23 and 0.3 mm; or 0.25 and 0.29 mm. In a preferred embodiment the aluminium 20 outer layer may have a thickness of between 0.23 and 0.3 mm. In this preferred embodiment the aluminium outer layer is thicker than a conventional aluminium outer layer. The present inventors have found that this thicker aluminium outer layer is of significant advantage because it assists in carbonation retention. The aluminium outer layer may have a thickness of 0.200, 0.205, 0.210, 0.215, 0.220, 0.225, 0.230, 0.235, 25 0.240, 0.245, 0.250, 0.255, 0.260, 0.265, 0.270, 0.275, 0.280, 0.285, 0.290,0.295 or 0.3 mm. In one particular embodiment of any above aspect the aluminium outer layer may have a thickness of 0.27 mm. The multilayer coextrusion liner may comprise two or more polymers. Suitable polymers include ethylene vinyl acetate, ethylene vinyl alcohol, polyethylene (PE) and 30 polyvinylidene chloride (PVDC). The polyethylene may be very low density 2625826v1 9 polyethylene (VLDPE), low density polyethylene (LDPE), foamed low density polyethylene (FLDPE), linear low density polyethylene, medium density polyethylene (MDPE) and/or high density polyethylene (HDPE). The multilayer coextrusion liner may comprise one or more layer of foamed or 5 expanded polyethylene. The one or more layer of foamed or expanded polyethylene may be one central layer in the multilayer coextrusion liner. The multilayer coextrusion liner may comprise between 1 and 15 layers; between 3 and 12 layers; or between 5 and 10 layers. The multilayer coextrusion liner may comprise 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 layers. 10 The multilayer coextrusion liner may comprise an uppermost layer comprising low density polyethylene. The multilayer coextrusion liner may comprise a lowermost layer comprising low density polyethylene. The multilayer coextrusion liner may comprise an uppermost layer and a lowermost layer comprising low density polyethylene. The multilayer coextrusion liner may comprise alternating layers of low 15 density polyethylene between layers of other suitable polymers. The multilayer coextrusion liner may comprise an uppermost layer of low density polyethylene, a layer of ethylene vinyl alcohol, a layer of low density polyethylene, a layer of foamed or expanded low density polyethylene, a layer of low density polyethylene, a layer of ethyl vinyl alcohol and a lowermost layer of low 20 density polyethylene. In this embodiment the multilayer coextrusion liner may be referred to as Tri-Ox. The multilayer coextrusion liner may comprise Tin-Saran or Saranex. The skilled person understands that Tin-Saran is a laminate. The multilayer coextrusion liner may comprise one or more non-polymeric 25 layer. The one or more non-polymeric layer may comprise tin and/or a paper. Based on the teaching herein a skilled person is readily able to select other suitable liners including other suitable proprietary liners. The multilayer coextrusion liner may be between 1 and 3 mm thick; between 1.5 and 2.5 mm thick; or between 1.75 and 2.25 mm thick. The multilayer coextrusion 30 liner may be 2.0 mm thick. The multilayer coextrusion liner may be 1, 1.1, 1.2, 1.3, 2625826v1 10 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9 or 3.0 mm thick. The multilayer coextrusion liner may comprise a density of between 100 and 500 kg in 3 ; 250 and 450 kg in 3 ; or 300 and 400 kg in 3 . The density may be 300, 310, 5 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460, 470,480, 490 or 500 kg in 3 . In one particular embodiment the multilayer coextrusion liner may comprise a density of 350 kg in 3 . The closure of the invention may comprise an application which includes a redraw between 1.0 and 2.4 mm so that the closure may retain pressure and 10 carbonation in a liquid stored in a bottle or other vessel to which the closure is attached. The redraw may be between 1.2 and 2.2 mm; 1.4 and 2.0 mm; 1.5 and 1.9 mm; or 1.6 and 1.8 mm. The redraw may be 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4 or 2.5 mm. The redraw may be at least 1.8 mm. The redraw dimension may be referred to as a redraw depth. 15 The redraw may allow the closure to hold increased pressure and better retain carbonation than closures with a smaller redraw. Advantageously, the redraw allows the closure to reseal the bottle or other vessel and to maintain carbonation after resealing. The redraw may allow the closure to better seal the bottle when tightened 20 during resealing. Although not wanting to be bound by any one theory the redraw may allow the closure to deform slightly during tightening so that a tighter or more effective seal is formed during resealing. To assist in removing the closure from the bottle or other vessel, the closure may comprise a frangible part. The frangible part may comprise one or more bridge, 25 one or more perforation and/or one or more cut line. The one or more bridge may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 bridges. Suitably between 2 and 10 bridges are used. In one particular embodiment 8 bridges are used. The bridges may be 0.8 to 2.0 mm wide; 1.0 to 1.8 mm wide, or 1.2 to 1.6 30 mm wide. In one particular embodiment the bridges are 1.4 mm wide. 2625826v1 11 The one or more bridge may span a cut line and/or perforation of the closure. Advantageously, the closure of the invention allows the pressure to be released before the one or more bridge breaks. The perforation may extend along the closure exterior when fitted to the bottle 5 or other vessel. The one or more cut line may extend along the closure exterior when fitted to the bottle or other vessel. The closure may comprise one or more bridge, one or more perforation extending along its exterior and one or more cut line extending along its exterior 10 when fitted to the bottle or other vessel. FIG. 1 shows one embodiment of a closure according to the invention. As shown in FIG. 1 when closure 100 is broken along the frangible part the top part 102 may be removed from bottom part 104 which remains fixed to the bottle or other vessel. Advantageously, the top part 102 can be resealed on the bottle or vessel. 15 Of significant advantage, upon resealing the bottle or other vessel with the closure of the invention carbonation is maintained or substantially maintained for at least 14 days; at least 7 days; at least 6 days; at least 5 days; at least 4 days; at least 3 days; or at least 2 days. The closure may also comprise a tamper evident seal. 20 The closure of any above aspect may be used for carbonated beverages with a gas volume of up to 7; up to 6; or up to5. The closure of may be used for carbonated beverages with a gas volume of greater than 5. The closure may not leak or substantially leak gas below 125 psi. The closure may not eject below 150 psi. 25 The closure may comprise a head pressure of between 100 and 220 kg; or 140 and 180 kg. The head pressure may comprise 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210 or 220 kg. The invention also provides a bottle or other vessel comprising the closure of the invention. The bottle or other vessel may be a conventional or standard wine 30 bottle. 2625826v1 12 The invention further provides a method of making a closure for a bottle or other vessel comprising applying the aluminium outer layer over the multilayered coextrusion and providing the redraw of between 1 and 2.4 mm in the closure so that the closure may retain pressure and carbonation in a liquid stored in a bottle or other 5 vessel to which the closure is attached. The closure may be made with a thread roller between 5 and 15 kg. The closure according to any above aspect may be made with a tuck under roller between 5 and 15 kg. The closure of the invention can be made to fit to any bottle or vessel. Based 10 on the teaching herein a skilled person is readily able to select suitable dimensions. The length of the closure may be between 30 and 90 mm. The overall diameter to span the mouth of the bottle or vessel may be between 10 and 50 mm. The diameter of the multilayer coextrusion liner to span the mouth of the bottle or vessel may be between 10 and 50 mm. The length of the top part 102 may be between 10 15 and 40 mm. The internal diameter may be between 10 and 50 mm. The diameter at the narrow point of the redraw 120 may be between 11 and 49 mm. The redraw diameter may be between 12 and 48 mm. Based on the teaching herein a skilled person is readily able to select specific values for suitable closure length, span diameter, multilayer coextrusion liner diameter, top part length, internal diameter, redraw 20 diameter narrow point and redraw diameter. As mentioned above, and of significant advantage the closure of the invention may be resealed on the bottle or other vessel to maintain the carbonation of the beverage. That is, preferably the closure is a resealable closure. The following non-limiting examples illustrate the closure and method of the 25 invention. These examples should not be construed as limiting: the examples are included for the purposes of illustration only. The closure discussed in the Examples will be understood to represent an exemplification of the invention. Examples CLOSURE: 30 One example of a closure 100 of the invention is shown in FIG. 1. Closure 100 2625826v1 13 is designed for application to a conventional wine bottle 200 (not shown) with a BVS (Bague Vin Suisse) finish for a screw-cap. The aluminium outer layer 110 has a thickness of 0.27 mm and a corresponding hardness rigidity. 5 On the inside of the aluminium outer layer can be seen the multilayer coextrusion liner 120 which has a thickness of 2.0 mm. The sequence of the seven polymer layers in liner 120 is listed in Table 1. Redraw 130 is also shown in FIG. 1 and in this embodiment comprises a depth of 2.0 mm. The depth is defined as the length from the top of closure 100 to the point 10 of indentation 132. Closure 100 comprises bridges 142 which break when closure 100 is gripped and twisted. Although only one bridge 142 is shown in FIG. 1, closure 100 comprises 8 bridges. Bridges 142 are 1.4 mm wide in the dimension traversing cut line 146. Once the bridges are broken the top part 102 of closure 100 may be removed 15 from bottle 200 leaving the bottom part 104 below cut line 146. Closure 100 also comprises lower bead 150 and perforations 144. Closure 100 is dimensioned so as to fit on a wine bottle with a standard BVS finish for a screw cap. Some of these dimensions of closure 100 are shown in FIG. 1 including the redraw diameter of 27.5 mm. 20 APPLICATION: In application the thread rollers were approximately 8 to 12 kg and the tuck under roller approximately 8 to 12 kg. TESTING: The multilayer coextrusion liner 120 was tested and found suitable to 10 bar 25 pressure. The multilayer coextrusion liner 120 was tested and shown to have good carbonation retention when subjected to the following standard parameters: 23 'C, 0 % relative humidity (RH) and 100 % CO 2 . Under these conditions the average loss of carbonation +/- 1 standard deviation was less than 1 cc/m 2 per day. 30 The closure 100 was tested and shown not to leak gas from the interior of 2625826v1 14 bottle 200 below 125 psi and not to eject below 150 psi. Testing showed closure 100 to be rated to 5 gas volumes. Closure 100 was shown to have a removal torque of 8 - 25 inch/pounds and head pressure of approximately 120 - 180 kg. 5 The oxygen transmission rate was tested independently using a Mocon Ox tran ML and shown at 23 'C, 21% oxygen and 50% RH at the outside of the conventional wine bottle to which closure 100 was applied and 90% RH at the inside of the conventional wine bottle 0,0009 cc over 24 hours. Independent testing of the migration properties showed that requirements 10 were me for Total Extractable for Plastic Materials and Articles intended to come into contact with food stuffs as described in Directive 2002/72/EC (European Community) and all of its amendments, based upon the methods required to be employed for such testing. Some of these test results are shown in Table 2. REGULATORY COMPLIANCE 15 Closure 100 uses FDA approved ingredients such as, 21CFR177.1520 Olefin Polymer Part 21CFR 175 and 178 Indirect Food Additives. Closure 100 also compiles with EC Directive 2002/72/EEC, EC Directive 94/62/EED and CONEG Regulations. Closure 100 of the invention has many advantages including retaining carbonation over a long period of time and resealability with maintenance of 20 carbonation. Closure 100 also has improved safety over conventional closures because the more gradual release of pressure on opening means closures won't fly off. All these advantages of closure 100 mean lead to increased convenience, especially in high throughput environments. 25 Throughout the specification the aim has been to describe the preferred embodiments of the invention without limiting the invention to any one embodiment or specific collection of features. It will therefore be appreciated by those of skill in the art that, in light of the instant disclosure, various modifications and changes can be made in the particular embodiments exemplified without departing from the scope of 30 the present invention. 2625826v1 15 All patent and scientific literature referred to herein is incorporated herein by reference. 2625826v1 16 TABLE 1: Sequence of polymer layers in multilayer coextrusion liner 120 Sequence Polymer 1 LDPE 2 EVOH 3 LDPE 4 Foamed or expanded LDPE 5 LDPE 6 EVOH 7 LDPE TABLE 2: Migration Properties of Closure 100 STUDY: Extractable per 2007/19/EC Test Result Sample Limits Food Simulant 3% V/V 2,1 mg/dn 10 mg/dn Acetic Acid Food Simulant 10% V/V 1,0 mg/dn 10 mg/dn Ethanol Food Simulant 95% V/V 2,6 mg/dn 10 mg/dn Ethanol 5 2625826v1

Claims (44)

1. A closure comprising: an aluminium outer layer applied over a multilayer coextrusion liner; and 5 an application which comprises a redraw of between 1.0 and 2.4 mm so that when fitted to a bottle or other vessel the closure retains pressure and carbonation in a liquid stored in the bottle or other vessel to which the closure is attached.

2. A bottle or other vessel comprising the closure of claim 1.

3. A bottle or other vessel comprising: 10 a closure comprising an aluminium outer layer applied over a multilayer coextrusion liner, the closure applied to the bottle or other vessel with an application which comprises a redraw of between 1.0 and 2.4 mm so that the closure retains pressure and carbonation in a liquid stored in a bottle or other vessel to which the closure is attached. 15

4. A method of making a closure for a bottle or other vessel comprising: applying an aluminium outer layer over a multilayered coextrusion; and providing a redraw of between 1 and 2.4 mm in the closure so that the closure retains pressure and carbonation in a liquid stored in a bottle or other vessel to which the closure is attached. 20

5. A method of making a closure for a bottle or other vessel comprising: applying an aluminium outer layer over a multilayered coextrusion; and providing the closure with the capacity for a redraw of between 1 and 2.4 mm in the closure when fitted to the bottle or other vessel so that the closure may retain pressure and carbonation in a liquid stored in the bottle or other vessel to which the 25 closure is attached.

6. A method of making a bottle or other vessel for storing a carbonated liquid, the method comprising: applying a closure comprising an aluminium outer layer applied over a multilayer coextrusion liner so that the closure is applied to the bottle or other vessel 30 with an application comprising a redraw of between 1.0 and 2.4 mm so that the 2625826v1 18 closure retains pressure and carbonation in a liquid stored in a bottle or other vessel to which the closure is attached.

7. The closure, bottle or method of any previous claim wherein the closure may be resealed on the bottle or other vessel. 5

8. The closure, bottle or method of any one of claims 1 to 7 wherein the aluminium outer layer may comprise a thickness of between 0.2 and 0.3 mm; between 0.23 and 0.3 mm; or between 0.25 and 0.29 mm.

9. The closure, bottle or method of any one of claims 1 to 8 wherein the aluminium outer layer may comprise a thickness of 0.27 mm.

10 10. The closure, bottle or method of any one of claims 1 to 9 wherein the multilayer coextrusion liner may comprise two or more polymers.

11. The closure, bottle or method of claim 10 wherein the two or more polymers may include ethylene vinyl acetate (EVA), ethylene vinyl alcohol (EVOH), polyethylene (PE) and polyvinylidene chloride (PVDC). 15

12. The closure, bottle or method of claim 11 wherein the polyethylene may comprise very low density polyethylene (VLDPE), low density polyethylene (LDPE), foamed low density polyethylene (FLDPE), linear low density polyethylene, medium density polyethylene (MDPE) and/or high density polyethylene (HDPE).

13. The closure, bottle or method of any previous claim wherein the multilayer 20 coextrusion liner may comprise one or more layer of foamed or expanded polyethylene.

14. The closure, bottle or method of claim 13 wherein the one or more layer of foamed or expanded polyethylene may comprise one central layer in the multilayer coextrusion liner. 25

15. The closure, bottle or method of any one of claims 1 to 14 wherein the multilayer coextrusion liner may comprise between 1 and 15 layers; between 3 and 12 layers; or between 5 and 10 layers.

16. The closure, bottle or method of any one of claims 1 to 15 wherein the multilayer coextrusion liner may comprise an uppermost layer comprising low density 30 polyethylene and/or a lowermost layer comprising low density polyethylene. 2625826v1 19

17. The closure, bottle or method of any one of claims 1 to 16 wherein the multilayer coextrusion liner may comprise an uppermost layer of low density polyethylene, a layer of ethylene vinyl alcohol, a layer of low density polyethylene, a layer of foamed or expanded low density polyethylene, a layer of low density 5 polyethylene, a layer of ethyl vinyl alcohol and a lowermost layer of low density polyethylene.

18. The closure, bottle or method of any one of claims 1 to 17 wherein the multilayer coextrusion liner may comprise Tin-Saran.

19. The closure, bottle or method of any one of claims 1 to 18 wherein the 10 multilayer coextrusion liner may comprise Saranex.

20. The closure, bottle or method of any one of claims 1 to 19 wherein the multilayer coextrusion liner may comprise one or more non-polymeric layer.

21. The closure, bottle or method of claim 20 wherein the one or more non polymeric layer comprises tin and/or a paper. 15

22. The closure, bottle or method of any one of claims 1 to 21 wherein the multilayer coextrusion liner may be between 1 and 3 mm thick; between 1.5 and 2.5 mm thick; or between 1.75 and 2.25 mm thick.

23. The closure, bottle or method of any one of claims 1 to 22 wherein the multilayer coextrusion liner may be 2.0 mm thick. 20

24. The closure, bottle or method of any one of claims 1 to 23 wherein the redraw may be between 1.0 and 2.2 mm; between 1.4 and 2.0 mm; between 1.5 and 1.9 mm; or between 1.6 and 1.8 mm.

25. The closure, bottle or method of any one of claims 1 to 23 wherein the redraw may be 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3 or 2.4 mm. 25

26. The closure, bottle or method of any one of claims 1 to 23 wherein the redraw is at least 1.8 mm.

27. The closure, bottle or method of any one of claims 1 to 26 wherein the multilayer coextrusion liner may comprise a density between 100 and 500 kg in 3 ; between 250 and 450 kg in 3 ; or between 300 and 400 kg in 3 . 30

28. The closure, bottle or method of any one of claims 1 to 26 wherein the 2625826v1 20 multilayer coextrusion liner comprises a density of 350 kg i 3 .

29. The closure, bottle or method of any one of claims 1 to 28 wherein the closure further comprises one or more frangible part.

30. The closure, bottle or method of claim 29 wherein the frangible part comprises 5 one or more bridge, one or more perforation and or one or more cut line.

31. The closure, bottle or method of claim 29 wherein the frangible part comprises one or more bridge.

32. The closure, bottle or method of claim 31 wherein the one or more bridge spans a cut line and/or perforation of the closure. 10

33. The closure, bottle or method of claim 31 wherein pressure may be released before the one or more bridge breaks.

34. The closure, bottle or method of any one of claims 1 to 33 wherein the closure further comprises one or more perforation extending along its exterior when fitted to the bottle or other vessel. 15

35. The closure, bottle or method of claim 1 to 34 wherein the closure further comprises one or more cut line along its exterior when fitted to the bottle or other vessel.

36. The closure, bottle or method of claim 29 comprising one or more bridge, one or more perforation extending along its exterior and one or more cut line extending 20 along a closure exterior when fitted to the bottle or other vessel.

37. The closure, bottle or method of any one of claims 1 to 36 wherein upon resealing with the closure carbonation is maintained or substantially maintained for at least 14 days; for at least 7 days; for at least 6 days; for at least 5 days; for at least 4 days; for at least 3 days; or for at least 2 days. 25

38. The closure, bottle or method of any one of claims 1 to 37 wherein the closure further comprise a tamper evident seal.

39. The closure, bottle or method of any one of claims 1 to 38 wherein the closure may be used for carbonated beverages with a gas volume of up to 7; up to 6; or up to 5. 30

40. The closure, bottle or method of any one of claims 1 to 39 wherein the closure 2625826v1 21 may not leak or substantially leak gas below 125 psi.

41. The closure, bottle or method of any one of claims 1 to 40 wherein the closure may not eject below 150 psi.

42. The closure, bottle or method of any one of claims 1 to 41 wherein the closure 5 may comprise a head pressure of between 100 and 220 kg; or between 140 and 180 kg.

43. The closure, bottle or method of any one of claims 1 to 42 wherein the closure may be made with a thread roller between 5 and 15 kg.

44. The closure, bottle or method of any one of claims 1 to 43 wherein the closure 10 may be made with a tuck under roller between 5 and 15 kg. 2625826v1