EP1220791B1 - Bouchon en liege agglomere et son procede d'obtention - Google Patents
Bouchon en liege agglomere et son procede d'obtention Download PDFInfo
- Publication number
- EP1220791B1 EP1220791B1 EP00967947A EP00967947A EP1220791B1 EP 1220791 B1 EP1220791 B1 EP 1220791B1 EP 00967947 A EP00967947 A EP 00967947A EP 00967947 A EP00967947 A EP 00967947A EP 1220791 B1 EP1220791 B1 EP 1220791B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binder
- cork
- stopper
- temperature
- period
- 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.)
- Expired - Lifetime
Links
- 239000007799 cork Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004088 foaming agent Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000000269 nucleophilic effect Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 229920002521 macromolecule Polymers 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 235000013312 flour Nutrition 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 238000005054 agglomeration Methods 0.000 claims description 2
- 230000002776 aggregation Effects 0.000 claims description 2
- 229920005601 base polymer Polymers 0.000 claims description 2
- 238000001033 granulometry Methods 0.000 claims 1
- 235000014101 wine Nutrition 0.000 abstract description 4
- 210000004027 cell Anatomy 0.000 abstract 1
- 210000003850 cellular structure Anatomy 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000015096 spirit Nutrition 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 235000013580 sausages Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
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
Definitions
- the present invention relates to the manufacture of caps based on agglomerated cork particles intended in particular for corking wines or bottled spirits.
- the manufacturing process for such closures uses either extrusion continuously, either by unit molding.
- This type of semi-synthetic stopper has a drawback main. Indeed, if we want the mechanical properties of the plug are sufficient, in particular absence of crumbling and loss of material during use or handling, the percentage of binder must be very high. This has harmful consequences on gas tightness; the result is close to that of synthetic caps, making this type of cap bad suitable for use for aging wines.
- the manufacture of the cap requires a lower quantity of material, and therefore proportionally, of binder, and this results, in the end, in cork with a density close to that of natural cork.
- the purpose of the present invention is to overcome these drawbacks by proposing a technique for manufacturing a cork agglomerated by an organic binder, having a homogeneous alveolar architecture similar to that of natural cork.
- the invention relates to a plug of the type consisting of a agglomerate of natural cork particles and an organic binder, characterized by what the binder is in the form of an open cell alveolar structure.
- an extrusion is carried out, the sausage obtained later being cut.
- an imprint of a mold the quantity necessary to obtain a cap and wear said mold at a temperature between 120 and 160 ° C for a period between 10 and 30 minutes, then unmold the cap.
- the binder comprises a basic polymer constituted by a polyurethane prepolymer and a foaming agent consisting of water.
- the cap after removing the cap from the mold, it is stabilized thermally by bringing it to a temperature between 100 and 150 ° C. for about 30 to 90 minutes, then at temperature between 30 and 90 ° C for a period between 48 hours and 7 days, for the purpose of obtaining organoleptic properties appropriate and more particularly of neutrality with regard to the liquid as well mouth.
- Such a cap has the remarkable property of having a homogeneous open alveolar architecture, i.e. similar for the part cork on the one hand and for the binding part on the other hand, the assembly thus having a architecture similar to that of natural cork.
- the process of the invention consists in its general principle of mixing, on the one hand, natural cork in particulate form, on the other hand, a binder under form of a powder of a basic polymer consisting of an assembly of macromolecules with molar masses between 150 g / mol and 500,000 g / mol having, per chain, at least one reactive function of nucleophilic and / or electrophilic type to which is added a foaming agent to electrophilic and / or nucleophilic molecule and / or macromolecule with which said polymer is capable of reacting respectively.
- said base polymer is a prepolymer of polyurethane and the foaming agent is water.
- the binder and the cork thus have conformations and properties equivalent physical.
- FIG. 1 Illustrated in FIG. 1, the structure of a plug according to the invention, which includes particles 1 of natural cork, scattered and embedded in a cellular mass of binder 2.
- the cork part of the cork represents between 50 and 70% of the total mass.
- the cork particles have two particle sizes different to obtain a more uniform cap.
- the cork part includes flour and granules, in proportion of about a third of flour for two thirds of granules.
- a surfactant such as a silicone for example, is added to the binding part for the purpose of forming an alveolar structure more homogeneous and with better sliding properties for the stopper.
- a plasticizing agent of the polymer type for example a natural or synthetic latex.
- mixing is carried out at temperature ambient, all the constituents of the reaction.
- a suitable release agent for a period between 10 and 30 minutes.
- This final stabilization step is important because, in its absence, unused reagents, remaining in the cap, could possibly go into alcohol and give it an unwanted taste.
- the starting mixture is shaped by extrusion at a temperature between 120 and 160 ° C, the rod obtained being maintained at a temperature for a period of between 10 and 30 minutes, then cut to obtain the desired plugs
- the plug according to the invention may possibly be partially or completely coated with a gliding aid or sealing, chosen from those usually used for this purpose.
- FIG. 2A graphs of comparative tests of compression of three kinds of caps with the same diameter of 22 mm and same length, namely a plug A according to FR 2 672 002, a plug B of the extruded type of the prior art mentioned above and a plug C according to the invention.
- FIG. 2A illustrates the behavior of these three plugs according to respectively compression to 10% of the length of the plugs at the length reduction speed of 10 mm per minute and compression at 50% of said length at the speed of 200 mm per minute.
- FIG. 2B are graphs of elastic recovery of these same caps A, B and C after compression.
- the areas in fine hatching indicate the maximum force in Newton to compress each plug to 50%, while the areas in thicker hatching indicates the value of the expansion force exerted by each plug compressed after 5 minutes of 50% compression.
- the force necessary to compress to 50% the plug is about 480 N, substantially identical to that necessary to compress plug A.
- the elastic return force of the plug C, measured at the the measuring device is of the order of 250 N.
- the plug C according to the invention lies in a very good average hardness and of elasticity and practically does not deform under compression, while by example, cap B is harder and less easy to bottle.
- the invention is obviously not limited to the modes of implementation work described above, but on the contrary covers all its variants, particularly with regard to the nature and proportions of the constituents of the cork part (1) and the binder part (2), as well as the operating methods, in particular the temperatures and the durations of the shaping process.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Lubricants (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Compounds Of Unknown Constitution (AREA)
Description
- à mélanger une partie liège et une partie liant, à raison de 50 à 70 % environ en masse de liège par rapport à la masse totale du bouchon, ladite partie liant étant constituée d'un polymère formé d'un assemblage de masses molaires comprises entre 150 g / mol et 500.000 g / mol présentant, par chaíne, au moins une fonction réactive de type nucléophile et / ou électrophile et d'un agent moussant à molécule et / ou macromolécule de type électrophile et / ou nucléophile avec lequel ledit polymère est susceptible de réagir chimiquement respectivement, et
- à mettre en forme le mélange en le maintenant à une température comprise entre 120 et 160°C pendant une durée comprise entre 10 et 30 minutes.
- polyuréthane : entre 40 et 80 %
- eau : entre 5 et 15 %
- agent tensioactif : entre 5 et 15 %
- plastifiant polymère : entre 5 et 25 %.
- la figure 1 est un schéma représentant de manière simplifiée la structure d'un bouchon selon l'invention, et
- les figures 2a et 2b représentent respectivement des graphes de compression et des graphes de retour élastique après compression de trois bouchons, à savoir un bouchon selon l'invention, un bouchon moulé de l'art antérieur et un bouchon extrudé de l'art antérieur.
- polyuréthane : à raison de 40 à 80 % environ de la masse totale de liant,
- silicone : à raison de 5 à 15 % environ de la masse totale de liant,
- latex : à raison de O à 25 % environ de la masse totale de liant,
- eau : à raison de 5 à 15 % environ de la masse totale de liant.
Claims (9)
- Bouchon du type constitué d'un agglomérat de particules de liège naturel (1) et d'un liant organique (2), caractérisé en ce que le liant (2) est sous forme d'une structure alvéolaire à cellules ouvertes.
- Procédé d'obtention du bouchon selon la revendication 1, caractérisé en ce qu'il consiste :à mélanger une partie liège (1) et une partie liant (2), à raison de 50 à 70 % environ en masse de liège par rapport à la masse totale du bouchon, ladite partie liant étant constituée d'un polymère formé d'un assemblage de masses molaires comprises entre 150 g / mol et 500.000 g /mol présentant, par chaíne, au moins une fonction réactive de type nucléophile et / ou électrophile et d'un agent moussant à molécule et / ou macromolécule de type électrophile et / ou nucléophile avec lequel ledit polymère est susceptible de réagir chimiquement respectivement, età mettre en forme le mélange en le maintenant à une température comprise entre 120 et 160°C pendant une durée comprise entre 10 et 30 minutes.
- Procédé suivant la revendication 2, caractérisé en ce que la mise en forme consiste en une extrusion, le boudin obtenu étant ensuite tronçonné.
- Procédé suivant la revendication 2, caractérisé en ce que la mise en forme consiste à placer dans une empreinte d'un moule la quantité nécessaire pour l'obtention d'un bouchon et à porter ledit moule à une température comprise entre 120 et 160°C pendant une durée comprise entre 10 et 30 minutes, puis à démouler le bouchon
- Procédé suivant la revendication 2, caractérisé en ce que le liant comprend un polymère de base constitué par un prépolymère de polyuréthane et un agent moussant constitué par de l'eau.
- Procédé suivant la revendication 5, caractérisé en ce que ledit liant (2) comprend en outre une agent tensioactif, notamment un silicone, et un plastifiant polymère, tel que du latex naturel ou synthétique, les pourcentages en masse du total du liant étant respectivement :polyuréthane : entre 40 et 80 %eau : entre 5 et 15 %agent tensioactif : entre 5 et 15 %plastifiant polymère : entre 5 et 25 %.
- Procédé suivant la revendication 4, caractérisé en ce qu'après démoulage du bouchon, on le stabilise thermiquement en l'amenant à une température comprise entre 100 et 150°C pendant une durée comprise entre 30 et 90 minutes, puis à une température comprise entre 30 et 90°C pendant une durée comprise entre 48 heures et 7 jours, à des fins d'obtention de propriétés organoleptiques appropriées.
- Procédé suivant l'une des revendications 2 à 7, caractérisé en ce que la partie liège (1) comprend des particules de deux granulométries différentes.
- Procédé suivant la revendication 8, caractérisé en ce que la partie liège (1) comprend environ un tiers de farine de liège pour deux tiers de granules de liège.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9912724A FR2799183B1 (fr) | 1999-10-05 | 1999-10-05 | Bouchon en liege agglomere et son procede d'obtention |
| FR9912724 | 1999-10-05 | ||
| PCT/FR2000/002759 WO2001025103A1 (fr) | 1999-10-05 | 2000-10-04 | Bouchon en liege agglomere et son procede d'obtention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1220791A1 EP1220791A1 (fr) | 2002-07-10 |
| EP1220791B1 true EP1220791B1 (fr) | 2003-07-30 |
Family
ID=9550847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00967947A Expired - Lifetime EP1220791B1 (fr) | 1999-10-05 | 2000-10-04 | Bouchon en liege agglomere et son procede d'obtention |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1220791B1 (fr) |
| AT (1) | ATE246126T1 (fr) |
| AU (1) | AU7793500A (fr) |
| DE (1) | DE60004252D1 (fr) |
| ES (1) | ES2204702T3 (fr) |
| FR (1) | FR2799183B1 (fr) |
| PT (1) | PT1220791E (fr) |
| WO (1) | WO2001025103A1 (fr) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2905626B1 (fr) * | 2006-09-13 | 2012-08-31 | Ardennes Chirorees | Procede de realisation d'un produit en liege agglomere. |
| BRPI0604459B1 (pt) | 2006-10-03 | 2014-04-15 | Jose Norberto Pinto Coelho | Processo de obtenção de rolhas a partir da aglomeração de materiais mistos |
| PT103591B (pt) * | 2006-10-17 | 2010-03-23 | Inst Superior Tecnico | Processo de produção de corpos cilíndricos de material compósito de cortiça, destinados à produção de rolhas para vinhos de pressão, bem como as rolhas produzidas por este processo |
| CA2855255A1 (fr) | 2011-11-11 | 2013-05-16 | Nomacorc Llc | Fermeture pour recipient contenant un produit |
| AU2013204663B2 (en) | 2012-06-08 | 2015-07-02 | Nomacorc Llc | Method of preparing a closure for a product-retaining container |
| AU2013205007B2 (en) | 2013-02-02 | 2016-05-26 | Nomacorc Llc | Closure for a product-retaining container |
| AU2013204542A1 (en) | 2013-04-05 | 2014-10-23 | Nomacorc Llc | Closure for a Product-Retaining Container |
| CN109642043A (zh) * | 2016-08-02 | 2019-04-16 | 唯万盛美国有限责任公司 | 用于产品保持容器的封闭件 |
| WO2019094738A1 (fr) | 2017-11-09 | 2019-05-16 | Vinventions Usa, Llc | Matériau thermoplastique et son utilisation dans la fabrication de matériau composite à base de liege |
| WO2019094776A1 (fr) | 2017-11-09 | 2019-05-16 | Vinventions Usa, Llc | Procédé de fabrication de particules enrobées |
| CN111315564B (zh) | 2017-11-09 | 2023-04-04 | 唯万盛美国有限责任公司 | 产品保持容器用封闭件的制造方法 |
| AU2018365001B2 (en) | 2017-11-09 | 2024-11-21 | Vinventions Usa, Llc | Method for manufacturing a closure for a product-retaining container |
| WO2019094756A1 (fr) | 2017-11-09 | 2019-05-16 | Vinventions Usa, Llc | Matériau particulaire destiné à être utilisé dans la production d'un matériau composite de liège ou d'un article de fabrication comprenant du liège |
| AU2019329382A1 (en) | 2018-08-31 | 2021-03-18 | Vinventions Usa, Llc | Decorative closure for a container |
| ES3065548T3 (en) * | 2022-06-29 | 2026-05-06 | Diam Bouchage | Method of manufacturing a stopper for closing a bottle, comprising sheets of cork glued to the two mirrors and to the roll and stopper |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2040889B (en) * | 1979-01-30 | 1983-01-26 | Metal Box Co Ltd | Closures for containers for wine or wine-based products |
| US4363849A (en) | 1980-10-30 | 1982-12-14 | The Coca-Cola Company | Foamed thermoplastic resin cork having a natural cork-like appearance and a method of injection molding the cork |
| FR2672002B1 (fr) | 1991-01-25 | 1995-05-24 | Sabate Sa Bouchons Champagne | Composition utilisable pour la fabrication de bouchon et procede de fabrication. |
| US5904965A (en) * | 1997-04-24 | 1999-05-18 | Nomaco, Inc. | Synthetic closure |
| AUPO832997A0 (en) * | 1997-07-31 | 1997-08-28 | Southcorp Australia Pty Ltd | Polymeric closure |
| DE19849149A1 (de) * | 1998-03-09 | 1999-09-16 | Gefinex Benelux S A | Kunststoffschaum zum Verschließen von Behältnissen |
-
1999
- 1999-10-05 FR FR9912724A patent/FR2799183B1/fr not_active Expired - Fee Related
-
2000
- 2000-10-04 EP EP00967947A patent/EP1220791B1/fr not_active Expired - Lifetime
- 2000-10-04 AU AU77935/00A patent/AU7793500A/en not_active Abandoned
- 2000-10-04 WO PCT/FR2000/002759 patent/WO2001025103A1/fr not_active Ceased
- 2000-10-04 DE DE60004252T patent/DE60004252D1/de not_active Expired - Lifetime
- 2000-10-04 AT AT00967947T patent/ATE246126T1/de not_active IP Right Cessation
- 2000-10-04 ES ES00967947T patent/ES2204702T3/es not_active Expired - Lifetime
- 2000-10-04 PT PT00967947T patent/PT1220791E/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2799183A1 (fr) | 2001-04-06 |
| PT1220791E (pt) | 2003-12-31 |
| EP1220791A1 (fr) | 2002-07-10 |
| ES2204702T3 (es) | 2004-05-01 |
| ATE246126T1 (de) | 2003-08-15 |
| WO2001025103A1 (fr) | 2001-04-12 |
| AU7793500A (en) | 2001-05-10 |
| DE60004252D1 (de) | 2003-09-04 |
| FR2799183B1 (fr) | 2001-12-14 |
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