EP0067763B1 - Procédé de fabrication de complexes multicouches - Google Patents
Procédé de fabrication de complexes multicouches Download PDFInfo
- Publication number
- EP0067763B1 EP0067763B1 EP19820401028 EP82401028A EP0067763B1 EP 0067763 B1 EP0067763 B1 EP 0067763B1 EP 19820401028 EP19820401028 EP 19820401028 EP 82401028 A EP82401028 A EP 82401028A EP 0067763 B1 EP0067763 B1 EP 0067763B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- copolymer
- process according
- water
- polymer layer
- layer
- 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
Links
- 238000000034 method Methods 0.000 title claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 35
- 229920000642 polymer Polymers 0.000 claims description 27
- 229920001577 copolymer Polymers 0.000 claims description 25
- -1 polyethylene Polymers 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 11
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000005977 Ethylene Substances 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 8
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 6
- 239000004700 high-density polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims 1
- 239000012808 vapor phase Substances 0.000 claims 1
- 238000002791 soaking Methods 0.000 description 11
- 230000032798 delamination Effects 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229920006262 high density polyethylene film Polymers 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0433—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a reactive gas
- B05D3/044—Pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
Definitions
- the present invention relates to a process for manufacturing multi-layer complexes, intended in particular for closing plastic packaging such as, for example, bottles.
- multilayer complex is understood to mean a complex composed of at least two layers.
- the multilayer sheets have a layer of adhesive located between the aluminum film and the layer of plastic.
- capsules made from such multilayer complexes heat-sealed on the packaging under the appropriate conditions, a tight seal is generally obtained, essential for the good preservation of the product packaged in the packaging.
- the Applicant has now found a way to overcome the drawbacks of the complexes mentioned above by applying to the aluminum foil a treatment with water brought to a temperature above about 60 ° C.
- An object of the present invention is therefore to improve the adhesion of a polymer layer on an aluminum film and thus to avoid delamination of multilayer complexes.
- Another object of the invention is to obtain direct adhesion of a layer of polymer to an aluminum film, without the interposition of an auxiliary agent.
- the subject of the invention is a method of manufacturing a multilayer complex intended in particular for closing packaging, said complex comprising an aluminum film secured to at least one layer of polymer composed of a polymer of ethylene or of an ethylene copolymer or of a mixture of such copolymers, said process being characterized in that, to improve the adhesion of the layer of polymer to the aluminum film, one operates a treatment with water brought to a temperature above 60 ° C., said treatment being carried out either before the aluminum film is made integral with the polymer layer, on the surface of the aluminum film intended to come into contact with the polymer layer, either after making the aluminum film integral with the polymer layer, the treatment with water then being carried out on the complex itself.
- a water temperature less than or equal to 200 ° C can be considered sufficient.
- Water can be in liquid form or in the form of vapor.
- the polymer layer can be composed in particular of a copolymer of ethylene and of an unsaturated monoethylenic carboxylic acid.
- This polymer can in particular be obtained by polymerization of ethylene then grafting of a small amount, generally less than 5% by weight, of an unsaturated monoethylenic carboxylic acid; this acid can for example be acrylic or methacrylic acid.
- the polymer layer can also be composed of high density polyethylene.
- It can also be composed of a mixture of polymers, such as, for example, a copolymer of ethylene and of acrylic acid, as defined above, in mixture with a copolymer of ethylene and of vinyl acetate.
- the aluminum film may have a thickness preferably between 30 and 80 microns.
- the thickness of the polymer layer when the polymer is, for example, polyethylene or a copolymer of ethylene and a non-monoethylenic carboxylic acid. saturated, as described above, or high density polyethylene.
- the complex is prepared, after optional treatment of the aluminum film with water brought to a temperature above 60 ° C, then joining of the aluminum film and the polymer layer, by passing the film and layer, in a manner known per se, on heated transfer rolls.
- Water treatment can be carried out after passing over the transfer rollers.
- the suspension of the copolymer can be obtained by dissolving the copolymer alone or as a mixture in an organic liquid, then by cooling the solution, said cooling preferably being rapid.
- the coating of the aluminum film can be carried out by means known in the art. It can be done, for example, using a transfer roller.
- the organic liquid contained in the suspension must then be removed from the coated metal sheet, by drying the support, for example by heating in a heating tunnel.
- the aluminum film is then brought to a temperature sufficient for the compounds to be melted.
- a layer of polyethylene or polypropylene can be joined to the polymer layer by passing over transfer rolls.
- the method according to the invention makes it possible to obtain complexes which delaminate only with very little difficulty. Indeed, the complexes prepared in a conventional manner, that is to say without the aluminum film being treated with hot water before their use, manage to delaminate.
- This example relates to delamination tests carried out by a bilayer complex composed of an aluminum film with a thickness of 50 microns and a film of ethylene acrylic acid copolymer with a thickness of 50 microns. also.
- the aluminum film and the copolymer film are calendered at 220 ° C. between two cylinders.
- Samples with a width of 10 mm, T and A are prepared from the complex thus obtained.
- T samples which are control samples, do not undergo any special treatment.
- Samples A are brought into contact with steam at 120 ° C for 20 min.
- the samples T and A are then immersed in water at 23 ° C.
- the variation in the adhesion of the aluminum and copolymer films is then followed as a function of the soaking time in water at 23 ° C.
- the adhesion tests are of the “peeling” type and consist in measuring the adhesion force of the copolymer and aluminum films, when they are subjected to opposite tensile forces, the complex being kept perpendicular to the acting forces.
- adhesion "peeling” which is the average force per unit of width of test piece necessary to cause separation of the two films is measured when the two films are separated at a uniform speed of 120 mm / min.
- Tests were carried out over a period of four weeks.
- the adhesion before soaking in water at 25 ° C is close to 400 gf / 10 mm. It decreases with the soaking time and reaches, after about 5 hours, a value close to 200 gf / 10 mm.
- the adhesion close to 800 gf / 1 mm remains constant.
- This example relates to delamination tests on complexes B1 and B2 similar to the complex A of example 1.
- the complexes B1 and B2 are soaked in water brought to different temperatures: 80 ° C and 100 ° C.
- the soaking time was varied from 15 minutes to 2 hours 45 minutes. Then, in the same way as in Example 1, adhesion tests were carried out by comparing them to the tests carried out with the control T complexes.
- the adhesion For B2 complexes (treated in water at 100 ° C), the adhesion, after 24 hours of soaking in water at 23 ° C, increases with the treatment time in water at 100 ° C. It goes from around 500 gf / 10 mm for 1/4 hour of treatment to 800 gf / 10 mm for 2 3/4 hours.
- the adhesion after 24 hours of soaking in water at 23 ° C is about 200 gf / 10 mm.
- This example relates to delamination tests on C complexes similar to those of Examples 1 and 2.
- these complexes C are prepared from an aluminum film previously treated with water at 100 ° C. The soaking time was varied from 15 seconds to 20 minutes. The two-layer complexes C were then produced in the same way as in Example 1, and identical adhesion tests were carried out by comparing them with the tests carried out with the control complexes T.
- the adhesion after 24 hours of soaking in water at 23 ° C, increases with the time of pre-treatment of aluminum in water at 100 ° C. After 30 seconds of treatment, it is approximately 300 gf / 10 mm; after 2 minutes, it is approximately 500 gf / mm and, after 10 minutes, it is greater than 800 gf / 10 mm.
- the adhesion after 24 hours of soaking in water at 23 ° C is approximately 200 gf / 10 mm.
- Complex D is then produced in the same way, but after treatment of the aluminum film for 20 minutes in water at 100 ° C. A peeling test as described above is carried out on complex D.
- the method according to the invention therefore makes it possible to directly adhere a film of high density polyethylene to an aluminum film, which is impossible otherwise.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8111440 | 1981-06-10 | ||
| FR8111440A FR2507539A1 (fr) | 1981-06-10 | 1981-06-10 | Procede de fabrication de complexes multicouches et complexes obtenus par ce procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0067763A1 EP0067763A1 (fr) | 1982-12-22 |
| EP0067763B1 true EP0067763B1 (fr) | 1985-04-24 |
Family
ID=9259364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19820401028 Expired EP0067763B1 (fr) | 1981-06-10 | 1982-06-07 | Procédé de fabrication de complexes multicouches |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0067763B1 (enrdf_load_stackoverflow) |
| CA (1) | CA1176149A (enrdf_load_stackoverflow) |
| DE (2) | DE67763T1 (enrdf_load_stackoverflow) |
| DK (1) | DK258282A (enrdf_load_stackoverflow) |
| ES (1) | ES8401888A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2507539A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2540830B1 (fr) * | 1983-02-10 | 1986-04-25 | Raffinage Cie Francaise | Nouveau corps de boite du type dit composite et boite composite comportant ce corps |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3783062A (en) * | 1972-01-27 | 1974-01-01 | Cons Bathurst Ltd | Method for flame bonding by use of high velocity,high temperature direct flame |
| FR2386402A1 (fr) * | 1977-04-06 | 1978-11-03 | Raffinage Cie Francaise | Procede de revetement d'un support par une couche de polymere et applications dudit procede |
| FR2442261A1 (fr) * | 1978-11-24 | 1980-06-20 | Raffinage Cie Francaise | Complexe bicouche, notamment pour la fermeture d'emballages en matiere plastique |
-
1981
- 1981-06-10 FR FR8111440A patent/FR2507539A1/fr active Granted
-
1982
- 1982-06-07 DE DE1982401028 patent/DE67763T1/de active Pending
- 1982-06-07 DE DE8282401028T patent/DE3263243D1/de not_active Expired
- 1982-06-07 EP EP19820401028 patent/EP0067763B1/fr not_active Expired
- 1982-06-09 ES ES512961A patent/ES8401888A1/es not_active Expired
- 1982-06-09 CA CA000404804A patent/CA1176149A/fr not_active Expired
- 1982-06-09 DK DK258282A patent/DK258282A/da not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE67763T1 (de) | 1983-07-21 |
| ES512961A0 (es) | 1984-01-01 |
| DE3263243D1 (en) | 1985-05-30 |
| DK258282A (da) | 1982-12-11 |
| CA1176149A (fr) | 1984-10-16 |
| FR2507539B1 (enrdf_load_stackoverflow) | 1983-12-02 |
| EP0067763A1 (fr) | 1982-12-22 |
| ES8401888A1 (es) | 1984-01-01 |
| FR2507539A1 (fr) | 1982-12-17 |
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Legal Events
| Date | Code | Title | Description |
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| ITCL | It: translation for ep claims filed |
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| TCNL | Nl: translation of patent claims filed | ||
| 17P | Request for examination filed |
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| DET | De: translation of patent claims | ||
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