GB2040889A - Closures for containers for wine or wine-based products - Google Patents

Closures for containers for wine or wine-based products Download PDF

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Publication number
GB2040889A
GB2040889A GB7903186A GB7903186A GB2040889A GB 2040889 A GB2040889 A GB 2040889A GB 7903186 A GB7903186 A GB 7903186A GB 7903186 A GB7903186 A GB 7903186A GB 2040889 A GB2040889 A GB 2040889A
Authority
GB
United Kingdom
Prior art keywords
wine
stopper
closure
vinyl acetate
oxygen
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.)
Granted
Application number
GB7903186A
Other versions
GB2040889B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging UK Ltd
Original Assignee
Metal Box PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metal Box PLC filed Critical Metal Box PLC
Priority to GB7903186A priority Critical patent/GB2040889B/en
Priority to ZA00800296A priority patent/ZA80296B/en
Priority to CA344,278A priority patent/CA1126211A/en
Priority to FR8001397A priority patent/FR2447867A1/en
Priority to DE19803030689 priority patent/DE3030689A1/en
Priority to NL8020011A priority patent/NL8020011A/en
Priority to BR8008727A priority patent/BR8008727A/en
Priority to AU54928/80A priority patent/AU534845B2/en
Priority to PCT/GB1980/000014 priority patent/WO1980001559A1/en
Priority to CH737780A priority patent/CH643504A5/en
Priority to PT70732A priority patent/PT70732A/en
Priority to AR279779A priority patent/AR220811A1/en
Priority to MA18915A priority patent/MA18718A1/en
Priority to GR61070A priority patent/GR74430B/el
Priority to IE175/80A priority patent/IE49152B1/en
Priority to IL59249A priority patent/IL59249A/en
Priority to BE0/199182A priority patent/BE881443A/en
Priority to IT19566/80A priority patent/IT1130915B/en
Priority to ES488512A priority patent/ES488512A1/en
Priority to IN795/CAL/80A priority patent/IN153890B/en
Publication of GB2040889A publication Critical patent/GB2040889A/en
Priority to DK411480A priority patent/DK411480A/en
Application granted granted Critical
Publication of GB2040889B publication Critical patent/GB2040889B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0011—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece from natural or synthetic cork, e.g. for wine bottles or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A closure for a container of wine or a wine-based product which can replace a conventional cork and provide a good barrier against ingress of oxygen, is in the form of a stopper moulded from an ethylene/-vinyl acetate copolymer with a vinyl acetate content of from 10% to 25%, the stopper having a closed-cell foamed core (which may contain water and sulphur dioxide to act as an oxygen scavenger) and a liquid-impervious skin, the degree of foaming being from 45% to 70%. The preferred VA content is from 10% to 20%. The stopper is preferably coated with a ilicone lubricant.

Description

SPECIFICATION Closures for containers for wine or wine-based products This invention relates to closures for containers for wine or wine-based products. Traditionally such closures have been of cork, in the form of bungs or stoppers inserted into the necks of glass bottles.
Cork has the advantages of high elasticity, resilience and softness, which enable cork stoppers to be compressed to a diameter less than that of the bottle neck for insertion into the neck and then to recover elastically to such an extent as to seal the neck effectively. The frictional characteristics of cork are such that the stopper grips the neck tightly and is not liable to accidental displacement but can be drawn out when required, and the gas barrier characteristics are such that a cork stopper of conventional size, having a length of 38 mm. or 44 mm. and a diameter when uncompressed of 22 mm. (19 mm. when compressed in a bottle neck), will restrict ingress of oxygen into the bottle to a low figure.Against these advantages, one must set the disadvantages that cork, being a natural product, is variable in quality, and good quality cork suitable for stoppers is relatively expensive. Any defects in the cork may lead to deterioration in the effectiveness of the stopper and deleterious effects on the taste of the contents.
For the preservation of wine and wine-based products, it is essential that access of oxygen to the product should be restricted, to prevent oxidation of the flavour constituents and of the alcohol content.
To stabilise the product against oxidation, it is normal practice for the producer to incorporate a small proportion of free sulphur dioxide (SO2) in the product, though the amount which may be incorporated is restricted by law. Thus a light table wine may, for example, contain 50 parts per million of free SO2. To achieve an adequate shelf life for the wine, say one year for a mass-produced light table wine, the bottle and stopper must co-operate to restrict access of oxygen to the wine to a total amount during that year which is less than the total amount which can be dealt with by the SO2 in the wine.For a wine contained in a standard 75 centilitre bottle and incorporating 50 p.p.m. SO2, it can be claulated that the amount of oxygen which can be dealt with by the SO2 in the wine is 6.5 ml. at normal temperature and pressure.
Efforts have been made previously to produce stoppers for wine bottles from synthetic plastics materials, in particular polyolefins such as polyethylene. Difficulties have been encountered, however, because these materials are too hard and incompressible for a solid stopper to be easily inserted into a bottle neck orto conform with irregularities in the interior surface of the neck to produce a good seal, when inserted. It has been proposed that such stoppers should be made with hollow interiors or in the form of a closed-cell elastic foam with a densified periphery offering a smooth external surface, in orderto make them more compressible, but the relative lack of resilience in the material still makes it difficult to achieve sufficient conformity with irregularities in the neck to produce a good seal.Further, the material has a relatively low creep resistance so that such stoppers tend to take a permanent set after insertion into a bottle neck and thereby lose their grip in the neck after a time. The frictional characteristics of the material are such that the stopper can then slide out of the neck.
In our prior co-pending British Patent Application No. 17415/76, (Serial No. 1572402), we have described and claimed a closure for a container of a wine or a wine-based product, at least a part of said closure intended to contact the product being in the form of a moulded stopper of a thermoplastics material, such as an ethylene/vinyl acetate copolymer, having a foamed core within a liquid-impervious skin, wherein the foamed core has been produced by blowing the thermoplastics material with a blowing agent including a thermally decomposable sulphite and a water-producing compound, whereby said foamed core contains sulphur dioxide and water enabling the sulphur dioxide to act as an oxygen scavenger.
It is an object of the present invention to provide closures for containers for wine or wine-based products which will avoid the above-mentioned disadvantages, and specifically to provide closures for synthetic plastics materials which can be made at relatively low cost and which will have the advantages of natural cork closures as regards insertion and retention of the closures, without the disadvantages described above.
According to the invention, there is provided a closure for a container for a wine or wine-based pro duct, at least the part of said closure which is intended to be exposed to the product being in the form of a moulded stopper of a thermoplastic material having a closed-cell foamed core within a liquid impervious skin, wherein the thermoplastic material is an ethylene/vinyl acetate copolymer with a vinyl acetate content of from 10% to 25% and the degree of foaming of the moulded stopper, measured in terms of the reduction of density as compared with the unfoamed material, is from 45% to 70%.
Preferably the ethylene/vinyl acetate copolymer has a vinyl acetate content of from 10% to 20%.
It has been found that by selecting the material and the degree of foaming in this manner the stop per can be made to reproduce the desirable properties of natural cork as regards compressibility and resilience, so that it is readily inserted into the neck of a container, such as a bottle, and conforms with any irregularities therein so as to produce a good seal. The material has a good creep resistance so that the stopper retains its grip in the neck and is not liable to be accidentally dislodged. Stoppers in accordance with the invention, when made of appropriate conventional size, can thus be employed with existing cork inserting machinery in bottling plants.
By selecting the material to have a vinyl acetate content within the specified range, it has also been found possible to achieve satisfactory gas barrier characteristics for restriction of ingress of oxygen into the container. In particular, where the moulded stopper is of conventional dimensions for a wine bottle cork, having a length between 30 mm and 50 mm and an uncompressed diameter of substantially 22 mm., it has proved possible to provide an oxygen barrier sufficient to restrict passage of oxygen into a container in which the closure is fitted to less than 4 ml. per annum.
The oxygen barrier can be further improved by arranging that the cells of the foamed core contain sulphur dioxide and water enabling the sulphur diox ide to act as an oxygen scavenger. This can be done as described and claimed in our co-pending British Patent Application No. 17415/76, by producing the foamed core by blowing with a blowing agent including a thermally decomposable sulphite and a water-producing compound.
To achieve desirable frictional characteristics and thereby facilitate handling of the closures in existing cork-inserting machinery, it is preferable to coat the moulded stoppers with a lubricant.
The lubricant must be insoluble in water, because water-soluble lubricants could mix with the product in the container and allow the stopper to slide in the neck. It is also importantthatthe lubricant should not migrate into the body of the stopper and thus be lost from the surface. The preferred lubricant which is coated on to the moulded stopper is a silicone, specifically a polymethyl siloxane, which is insoluble in water and remains on the surface of the stopper.
Specific examples of the invention will now be described by way of example.
Cylindrical stoppers similar two conventional wine corks, having a length of 38 mm and a diameter of 22 mm, were formed from three different ethylene/vinyl acetate (EVA) copolymers having vinyl acetate (VA) contents of 12fS6, 15% and 18%, respectively. An injection moulding technique was used in which the EVA copolymerwas mixed with a blowing agent, heated, and injected into a cool mould so as to produce in known manner a stopper having a closedcell foamed core within a smooth liquid-impervious skin. The melt flow index values for the EVA copolymers were 4,8 and 10, respectively.It is believed that the melt flow index is not particularly relevant in this context, though excessively fluid copolymers should be avoided because of difficulty of ensuring formation of the desired multiplicity of small closed cells and avoiding cell collapse in the foaming process. The feedstock was formulated and the blowing controlled to achieve a degree of foaming of from 50% to 70% measured in terms of the reduction in density as compared with the unfoamed material. The degree of foaming has been found to be critical. Below 45% foaming the stopper is insufficiently soft and compressible, and a minimum of 50 /O is usually to be preferred, whereas above 70% the skin of the stopper is too thin to retain adequate strength and oxygen barrier properties.
The blowing agent used in this series of experiments was a mixture of sodium bicarbonate and sodium metabisulphite, the composition of the feedstock being: EthyleneNinyl acetate copolymer 96% Sodium bicarbonate 1% Sodium metabisulphite 2% Pigment 1% The sodium bicarbonate and the sodium metabisulphite decompose at the temperature to which the feedstock is heated prior to injection into the mould, to produce carbon dioxide, water vapour and sulphur dioxide, and some of the sulphur diox ide reacts with the sodium carbonate formed by decomposition of the sodium bicarbonate to liberate more carbon dioxide:: Na2S2 S Na2SO3 + S02 2NaHCO3 Na2CO2+ H2O + CO2 Na2CO3 + S02 Na2SO3 + CO2 The sodium metabisulphite being present in stoichiometric excess, the blowing gas contains sul phur dioxide, carbon dioxide and water vapour which expand to cause foaming of the mixture as the feedstock enters the mould, the effect of the cool mould walls being to restrict the formation of cells at or near the surface ofthe moulded stopper, so that it has a closed-cell foamed core within a smooth liquid-impervious skin. The sulphur dioxide, carbon dioxide and water produced in the blowing process are retained in the cells.
There would be a tendency for the sulphur dioxide to diffuse slowly out of the cells if the stoppers were stored in air. They are therefore preferably stored in a sealed container in an atmosphere of sulphur dioxide until they are required for use.
Stoppers made as described above were coated with a polymethyl siloxane lubricant and inserted into the necks (or 19 mm. internal diameter) of wine bottles using conventional cork-inserting machinery, in which the stoppers are compressed to a diameter of 15 mm. before being inserted into the necks. The compressibility, resilience, creep resistance and frictional characteristics of the stoppers proved to be well suited to the machinery so as to enable the stoppers to be readily inserted, and to cause them to grip the necks tightly and form effective and lasting seals with no tendency for the stoppers to slip out.
Measurements were made of the rate of oxygen diffusion through the stoppers described above, under normal atmospheric pressure conditions.
Stoppers made with the 122% and 15% VA copolymers showed figures of approximately 3 ml. per annum in the first year. Stoppers of the 18% VA copolymer gave an average figure of 3.35 ml. in the firstyearwith a maximum of 3.5 ml in that year.
After the first year, there was a drop to a rate of 2.5 ml per annum. These figures are well below the figure of 6.5 ml of oxygen which can be dealt with by the normal content of 50 p.p.m. free SO2 in a massproduced light table wine, indicating that a good shelf life could be expected. It will be understood that most other wines and wine-based products have a better resistance to oxidation so that even better shelf lives could be expected for such other products from use of stoppers in accordance with the invention.
By contrast, stoppers made in the same manner from various samples of ethylene/vinyl acetate copolymer having a vinyl acetate content of 28% were found to show oxygen diffusion rates of 6.6 ml per annum and higher and thus to have an unac ceptably low oxygen barrier.
While the blowing agent described above is designed to produce sulphur dioxide and water in the cells to act as an oxygen scavenger and thus improve the oxygen barrier, it would naturally be possible to use other conventional blowing agents such as nitrgoen, pentane, low boiling compounds such as methylene chloride orfluorinated hydrocarbons. Alternatively, suplhur dioxide and water can be produced in the cells by other blowing agents apart from the sodium metabisulphite and sodium bicarbonate mentioned above. For example, metabisulphites and bicarbonates of other metals, particularly other alkali metals such as potassium, may be used. The water vapour or part thereof may be provided by incorporation of hydrated sodium citrate in the blowing agent.
The stoppers may be moulded with a small chamfer at each end. Alternatively they may be provided with a flanged end or head, e.g. of spherical or part-spherical shape, which may be moulded of the same EVA copolymer or of a different polymer.

Claims (6)

1. A closure for a containerforawineorwine- based product, at least the part of said closure which is intended to be exposed to the product being in the form of a moulded stopper of a thermoplastic material having a closed-cell foamed core within a liquidimpervious skin, wherein the thermoplastic material is an ethylene/vinyl acetate copolymer with a vinyl acetate content of from 10% to 25% and the degree of foaming of the moulded stopper, measured in terms of the reduction of density as compared with the unfoamed material, is from 45% to 70%.
2. A closure according to claim 1, wherein the ethylene/vinyl acetate copolymer has a vinyl acetate content of from 100/c to 20%.
3. A closure according to claim 1 or 2, wherein the moulded stopper has a length between 30 and 50 mm and an uncompressed diameter of substantially 22 mm. and provide an oxygen barrier sufficient to restrict passage of oxygen into a container in which the closure is fitted to less than 4 ml. per annum.
4. A closure according to any one of the preceding claims, wherein the cells of the foamed core contain sulphur dioxide and water enabling the sulphur dioxide to act as an oxygen scavenger.
5. A closure according to any one of the preceding Claims, wherein the moulded stopper is coated with a silicone lubricant.
6. A closure for a container for a wine or wine- based product, according to Claim 1 and substantially as hereinbefore described in one of the specific examples.
GB7903186A 1979-01-30 1979-01-30 Closures for containers for wine or wine-based products Expired GB2040889B (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
GB7903186A GB2040889B (en) 1979-01-30 1979-01-30 Closures for containers for wine or wine-based products
ZA00800296A ZA80296B (en) 1979-01-30 1980-01-17 Closures for containers for wine or wine-based products
CA344,278A CA1126211A (en) 1979-01-30 1980-01-23 Closures for containers for wine or wine-based products
FR8001397A FR2447867A1 (en) 1979-01-30 1980-01-23 CLOSURE FOR CONTAINERS CONTAINING WINE OR WINE PRODUCTS
NL8020011A NL8020011A (en) 1979-01-30 1980-01-24 CLOSURES FOR WINE OR WINE-BASED PRODUCTS.
BR8008727A BR8008727A (en) 1979-01-30 1980-01-24 STOPPERS FOR CONTAINERS CONTAINING WINE OR WINE PRODUCTS
AU54928/80A AU534845B2 (en) 1979-01-30 1980-01-24 Closure for wine container
PCT/GB1980/000014 WO1980001559A1 (en) 1979-01-30 1980-01-24 Closures for containers for wine or wine-based products
CH737780A CH643504A5 (en) 1979-01-30 1980-01-24 PLUG FOR A CONTAINER FOR WINE OR A WINE-BASED PRODUCT.
DE19803030689 DE3030689A1 (en) 1979-01-30 1980-01-24 CLOSURES FOR CONTAINERS FOR WINE OR WINE-BASED PRODUCTS
PT70732A PT70732A (en) 1979-01-30 1980-01-25 Closures for containers for wine or wine-based products
MA18915A MA18718A1 (en) 1979-01-30 1980-01-29 CLOSURE FOR CONTAINERS CONTAINING WINE OR WINE PRODUCTS
GR61070A GR74430B (en) 1979-01-30 1980-01-29
IE175/80A IE49152B1 (en) 1979-01-30 1980-01-29 Closures for containers for wine or wine-based products
IL59249A IL59249A (en) 1979-01-30 1980-01-29 Closures for containers for wine or wine-based products
AR279779A AR220811A1 (en) 1979-01-30 1980-01-29 CLOSURE FOR A WINE OR WINE PRODUCT CONTAINER
BE0/199182A BE881443A (en) 1979-01-30 1980-01-30 CLOSURE FOR CONTAINERS CONTAINING WINE OR WINE PRODUCTS
IT19566/80A IT1130915B (en) 1979-01-30 1980-01-30 CLOSURES FOR WINE CONTAINERS OR WINE BASED PRODUCT
ES488512A ES488512A1 (en) 1979-01-30 1980-01-30 Closures for containers for wine or wine-based products
IN795/CAL/80A IN153890B (en) 1979-01-30 1980-07-11
DK411480A DK411480A (en) 1979-01-30 1980-09-29 CLOSING DEVICE FOR WINES OR WINE BASED CONTAINERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7903186A GB2040889B (en) 1979-01-30 1979-01-30 Closures for containers for wine or wine-based products

Publications (2)

Publication Number Publication Date
GB2040889A true GB2040889A (en) 1980-09-03
GB2040889B GB2040889B (en) 1983-01-26

Family

ID=10502815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7903186A Expired GB2040889B (en) 1979-01-30 1979-01-30 Closures for containers for wine or wine-based products

Country Status (20)

Country Link
AR (1) AR220811A1 (en)
AU (1) AU534845B2 (en)
BE (1) BE881443A (en)
BR (1) BR8008727A (en)
CA (1) CA1126211A (en)
CH (1) CH643504A5 (en)
DK (1) DK411480A (en)
ES (1) ES488512A1 (en)
FR (1) FR2447867A1 (en)
GB (1) GB2040889B (en)
GR (1) GR74430B (en)
IE (1) IE49152B1 (en)
IL (1) IL59249A (en)
IN (1) IN153890B (en)
IT (1) IT1130915B (en)
MA (1) MA18718A1 (en)
NL (1) NL8020011A (en)
PT (1) PT70732A (en)
WO (1) WO1980001559A1 (en)
ZA (1) ZA80296B (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051277A2 (en) * 1980-10-30 1982-05-12 The Coca-Cola Company Plastic closure for liquid product containers and its preparation
US4499141A (en) * 1980-10-30 1985-02-12 The Coca-Cola Company Composition for making a plastic closure for liquid product containers
AU612463B2 (en) * 1988-02-10 1991-07-11 W.R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5202052A (en) * 1990-09-12 1993-04-13 Aquanautics Corporation Amino polycarboxylic acid compounds as oxygen scavengers
US5204389A (en) * 1988-02-10 1993-04-20 W. R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5227411A (en) * 1988-02-10 1993-07-13 W. R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5364555A (en) * 1991-04-30 1994-11-15 Advanced Oxygen Technologies, Inc. Polymer compositions containing salicylic acid chelates as oxygen scavengers
US5663223A (en) * 1994-08-11 1997-09-02 Zapata Technologies, Inc. Flavor protectant closure liner compositions
WO2000015696A1 (en) * 1998-09-15 2000-03-23 Anthony Smith Australasia Pty. Ltd. Polymeric closure comprising foamed polyethylene or ethylene copolymer and a resilient compound
GB2338952B (en) * 1997-04-24 2001-01-31 Nomaco Inc Synthetic closure
FR2799183A1 (en) * 1999-10-05 2001-04-06 Bouchages Delage Stopper, especially for wine or spirit bottles, formed from cork particles and open cell foam polymeric binder, having similar structure and mechanical properties to natural cork stoppers
EP1182223A1 (en) 1993-05-05 2002-02-27 Supreme Corq Molded closure for a liquid container
EP1280710A1 (en) 2000-03-15 2003-02-05 Ulrich Stieler Closure for bottle-like containers and method for production thereof
US6709724B1 (en) 1990-05-02 2004-03-23 W. R. Grace & Co.-Conn. Metal catalyzed ascorbate compounds as oxygen scavengers
DE102004008109A1 (en) * 2004-02-18 2005-09-08 Sebastian Heintges Synthetic cork for bottles comprises core partly or wholly enclosed in silicone cover which is bonded or vulcanized in position
WO2006130923A1 (en) * 2005-06-10 2006-12-14 Advanced Beverage Closures Pty Ltd A stopper with a foamed core and an outer skin
ITRA20090019A1 (en) * 2009-06-22 2010-12-23 Trere Chimica S A S Del Dott Tre Re Massimilia PROCEDURE, COMPOUND AND USE OF THE COMPOUND FOR SULFURING AND SECONDARY ADSORBENT ACTION OF INSTABLE PROTEINS AND PHENOLIC COMPOUNDS OF MUSTS AND WINES, PROVIDED FOR THE SELF-MIXING OF ACTIVE SUBSTANCES OF THE TREATED VINEYARD MASS
WO2021217160A2 (en) 2020-03-06 2021-10-28 Csp Technologies, Inc. Tea-based compositions for oxygen modified packaging
WO2021217159A2 (en) 2020-03-06 2021-10-28 Csp Technologies, Inc. Daucus-based compositions for oxygen modified packaging

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493853A1 (en) * 1980-11-10 1982-05-14 Pupi Matic Sa CAPS OF CELLULAR PLASTIC MATERIAL
GB8509745D0 (en) * 1985-04-16 1985-05-22 Spadel Sa Controlling & reducing opening torques of caps & lids
GB8803065D0 (en) * 1988-02-10 1988-03-09 Grace W R & Co Container closure & materials for use in these
JPH021651U (en) * 1988-06-16 1990-01-08
FR2662142B1 (en) * 1990-05-18 1993-05-07 Cofarep Sa EXPANDED POLYMER CAP.
WO2007147218A1 (en) * 2006-06-23 2007-12-27 Amcor Limited Closure with line having specified oxygen transmission rate

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Publication number Priority date Publication date Assignee Title
FR2284534A1 (en) * 1974-09-12 1976-04-09 Bouchage Mecanique IMPROVEMENTS FOR SHUTTERS FOR MOUTH CONTAINERS
GB1572902A (en) * 1976-04-29 1980-08-06 Metal Box Co Ltd Closures for liquid product containers
DE2700259A1 (en) * 1977-01-05 1978-07-13 Mueller Karl Heinz Synthetic foam bottle stopper treatment - with silicone oil-water emulsion for smooth surface finish

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0051277A3 (en) * 1980-10-30 1983-01-26 The Coca-Cola Comapny Plastic closure for liquid product containers and its preparation
US4499141A (en) * 1980-10-30 1985-02-12 The Coca-Cola Company Composition for making a plastic closure for liquid product containers
EP0156957A2 (en) * 1980-10-30 1985-10-09 The Coca-Cola Company Plastic closure for liquid product containers and its preparation
EP0156957A3 (en) * 1980-10-30 1987-10-14 The Coca-Cola Company Plastic closure for liquid product containers and its preparation
EP0051277A2 (en) * 1980-10-30 1982-05-12 The Coca-Cola Company Plastic closure for liquid product containers and its preparation
AU612463B2 (en) * 1988-02-10 1991-07-11 W.R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5106886A (en) * 1988-02-10 1992-04-21 W. R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5204389A (en) * 1988-02-10 1993-04-20 W. R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US5227411A (en) * 1988-02-10 1993-07-13 W. R. Grace & Co.-Conn. Sealed containers and sealing compositions for them
US6709724B1 (en) 1990-05-02 2004-03-23 W. R. Grace & Co.-Conn. Metal catalyzed ascorbate compounds as oxygen scavengers
US5202052A (en) * 1990-09-12 1993-04-13 Aquanautics Corporation Amino polycarboxylic acid compounds as oxygen scavengers
US5364555A (en) * 1991-04-30 1994-11-15 Advanced Oxygen Technologies, Inc. Polymer compositions containing salicylic acid chelates as oxygen scavengers
EP1182223A1 (en) 1993-05-05 2002-02-27 Supreme Corq Molded closure for a liquid container
US5863964A (en) * 1994-08-11 1999-01-26 Zapata Technologies, Inc. Flavor protectant closure liner compositions
USRE36815E (en) * 1994-08-11 2000-08-08 Zapata Technologies, Inc. Flavor protectant closure liner compositions
US5663223A (en) * 1994-08-11 1997-09-02 Zapata Technologies, Inc. Flavor protectant closure liner compositions
GB2338952B (en) * 1997-04-24 2001-01-31 Nomaco Inc Synthetic closure
WO2000015696A1 (en) * 1998-09-15 2000-03-23 Anthony Smith Australasia Pty. Ltd. Polymeric closure comprising foamed polyethylene or ethylene copolymer and a resilient compound
US6608116B2 (en) 1998-09-15 2003-08-19 Anthony Smith Australia Pty Ltd Polymeric closure comprising foamed polyethylene or ethylene copolymer and a resilient compound
FR2799183A1 (en) * 1999-10-05 2001-04-06 Bouchages Delage Stopper, especially for wine or spirit bottles, formed from cork particles and open cell foam polymeric binder, having similar structure and mechanical properties to natural cork stoppers
WO2001025103A1 (en) * 1999-10-05 2001-04-12 Les Bouchages Delage Bonded cork stopper and method for making same
EP1280710A1 (en) 2000-03-15 2003-02-05 Ulrich Stieler Closure for bottle-like containers and method for production thereof
DE102004008109A1 (en) * 2004-02-18 2005-09-08 Sebastian Heintges Synthetic cork for bottles comprises core partly or wholly enclosed in silicone cover which is bonded or vulcanized in position
DE102004008109B4 (en) * 2004-02-18 2007-07-12 Sebastian Heintges Artificial cork
WO2006130923A1 (en) * 2005-06-10 2006-12-14 Advanced Beverage Closures Pty Ltd A stopper with a foamed core and an outer skin
ITRA20090019A1 (en) * 2009-06-22 2010-12-23 Trere Chimica S A S Del Dott Tre Re Massimilia PROCEDURE, COMPOUND AND USE OF THE COMPOUND FOR SULFURING AND SECONDARY ADSORBENT ACTION OF INSTABLE PROTEINS AND PHENOLIC COMPOUNDS OF MUSTS AND WINES, PROVIDED FOR THE SELF-MIXING OF ACTIVE SUBSTANCES OF THE TREATED VINEYARD MASS
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WO2021217159A2 (en) 2020-03-06 2021-10-28 Csp Technologies, Inc. Daucus-based compositions for oxygen modified packaging

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CA1126211A (en) 1982-06-22
PT70732A (en) 1980-02-01
AR220811A1 (en) 1980-11-28
IL59249A0 (en) 1980-05-30
IT8019566A0 (en) 1980-01-30
GB2040889B (en) 1983-01-26
GR74430B (en) 1984-06-28
ZA80296B (en) 1981-03-25
NL8020011A (en) 1981-06-16
DK411480A (en) 1980-09-29
FR2447867B1 (en) 1984-01-06
ES488512A1 (en) 1980-10-01
BR8008727A (en) 1981-04-28
IL59249A (en) 1982-01-31
CH643504A5 (en) 1984-06-15
IT1130915B (en) 1986-06-18
AU5492880A (en) 1980-08-07
IN153890B (en) 1984-08-25
IE49152B1 (en) 1985-08-07
AU534845B2 (en) 1984-02-16
MA18718A1 (en) 1980-10-01
WO1980001559A1 (en) 1980-08-07
FR2447867A1 (en) 1980-08-29
BE881443A (en) 1980-07-30
IE800175L (en) 1980-07-30

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