WO2000034039A1 - Film composite multicouches et utilisation de ce film - Google Patents
Film composite multicouches et utilisation de ce film Download PDFInfo
- Publication number
- WO2000034039A1 WO2000034039A1 PCT/IB1999/001930 IB9901930W WO0034039A1 WO 2000034039 A1 WO2000034039 A1 WO 2000034039A1 IB 9901930 W IB9901930 W IB 9901930W WO 0034039 A1 WO0034039 A1 WO 0034039A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composite film
- layers
- film
- conduit
- lldpe
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- 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
- B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
- B65D31/14—Valve bags, i.e. with valves for filling
- B65D31/145—Valve bags, i.e. with valves for filling the filling port being provided in a flat upper sealing-edge
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
-
- 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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
- B65D77/24—Inserts or accessories added or incorporated during filling of containers
- B65D77/28—Cards, coupons, or drinking straws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
- B32B2323/046—LDPE, i.e. low density polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/24992—Density or compression of components
Definitions
- the present invention relates to a multi-layer, food-grade composite film, the thickness of which is between 30 ⁇ and 120 ⁇ m, comprising a PP-based layer sandwiched between two external layers of LLDPE whose density d is 0.919 ⁇ d ⁇ 0.930 g / cm 3 , as well as a use of this film.
- the multilayer composite films are well known and are generally intended to combine the physi cal properties ⁇ or chemical properties of different polymer materials in the functions of desired properties.
- EP 0 247 896 discloses a weldable film comprising a base layer which comprises a polyolefin, which has on at least one of its faces 1 to 20% by weight based on the base layer of a film comprising a mixture from 70 to 95% by weight of an LLDPE and 5 to 30% by weight of a resin with a lower molecular weight than that of LLDPE.
- Another multi-layer weldable film based on polypropylene comprising at least one outer layer of LLDPE whose density is 0.893-0.905 g / cm 3 , the melt index of 0.1-10 g / 10 minutes and containing up to 20% of a comonomer, in JP 09 207294.
- JP 09 314769 a weldable film has been described comprising a flexible resin film of polypropylene type on the opposite faces of which films of LLDPE are laminated.
- a nonionic type surfactant is combined with one or more of the layers.
- US 5,085,927 proposes to increase the molding property of a stretch film by the addition of an elastomeric compound in addition to the adhesion agents which themselves increase the molding properties of the film.
- a liquid packaging sachet comprising a valve for controlling the distribution of the liquid, constituted by the superposition of two films welded along two non-converging lines to form a distribution duct. tion by separation of the two films.
- This conduit preferably has an inlet passage whose perimeter corresponds to that of a straw whose end is swollen.
- This film has sufficient elasticity to allow it to expand during the introduction of this straw and then to tighten around it to prevent its removal from said conduit. The straw is thus secured to the bag and can only be removed to the value necessary to allow the closure of the conduit forming the valve.
- the material of the film forming the valve must therefore have sufficient elasticity to tighten around the straw while allowing the passage of the bulged part.
- This film must be compatible with drinks and therefore meet the standards relating to food products.
- this material must retain its properties even after having been subjected to a temperature between 80 ° and 90 ° C, which is frequently that of the drink at the time of its packaging in the sachet.
- the object of the present invention is to obtain a film capable of satisfying at least the main requirements. cipales that is to say, in addition to the flexibility properties necessary to allow the tight closure of the conduit forming the valve, the elastic properties and compatibility with food standards.
- the film according to the invention should withstand the temperature of the liquid to be conditioned, which can rise to 80 ° or even 90 °, while retaining its properties of flexibility and elasticity.
- the present invention firstly relates to a multilayer composite film of the aforementioned type, as defined by claim 1. It also relates to a use of this film as defined by claim 7. Different embodiments preferred films of the composite film correspond to the definitions given in the dependent claims of claim 1.
- the two outer layers of the multilayer film object of the present invention are formed of a LLDPE (Linear Low Density Polyethylene), Dow Elite ® 5110, the density is 0.925 g / cm 3 and the melt index MI of 0.85 g / 10 minutes according to standard ASTM D 1238, measurement carried out at 230 ° C, applying a mass of 2.16 kg, with a standard nozzle of 2.095 mm in diameter while the point of Vicat T ° v softening is 113 ° C.
- LLDPE Linear Low Density Polyethylene
- Dow Elite ® 5110 the density is 0.925 g / cm 3
- the melt index MI 0.85 g / 10 minutes according to standard ASTM D 1238
- a slip agent in this example, 900 pp of Erucamide ® which is a derivative of erucic acid whose molecule is cis-docosen-13 amide, in at least one of the two outer layers of the film, that is to say that which will be inside the channel forming the valve and which will therefore be in contact with the straw for sampling the liquid in order to facilitate its sliding inside the conduit forming the valve produced at using the film object of the present invention.
- Erucamide ® which is a derivative of erucic acid whose molecule is cis-docosen-13 amide
- the middle layer of this film sandwiched between the above-mentioned outer layers consists of a mixture of 60% PP, Moplen ® EP-Q 30RF from Himont, a heterophasic copolymer with a density d of 0.9 g / cm 3 , the melt index MI of 0.8 g / 10 minutes according to ASTM D 1238 / L and the Vicat T ° v softening point of 150 ° C.
- This middle layer still comprises 20% of the LLDPE used to form the two outer layers mentioned above and 20% of a thermoplastic polyolefin, the Afdflex ® Q100F manufactured by Himont, whose density d is 0.89 g / cm 3 and the melt index MI is 0.6 g / 10 minutes according to ASTM D 1238.
- thermoplastic polyolefin The role of this thermoplastic polyolefin is to impart sufficient elasticity to the polypropylene, to allow the film forming the valve and in particular the inlet conduit opening into the valve itself, to deform elastically as a swollen retaining portion passes. liquid sampling straw when introduced into this valve. Indeed, the length of the perimeter of this inlet duct is chosen to correspond to that of the perimeter of this straw, so that after having introduced the swollen retaining part of this straw, the duct tightens around the straw and opposes its release.
- This middle layer of the film object of this invention also has the role of giving this film resistance to a temperature of 80 ° to 90 ° C., so as to allow the filling of the enclosures or sachets, of which the valve formed from the film which is the subject of the present invention is integral, with drinks conditioned at such temperatures.
- This hot filling is carried out for all kinds of drinks, in particular milk or milk-based drinks as well as fruit juices. It must retain its properties, in particular its elastic properties after hot conditioning of the drink.
- the film thus produced must also be able to be welded without the welding causing its degradation, that is to say that it must maintain its food compatibility with the drinks which are packaged.
- the thickness of the film can be varied within a fairly wide range as required, from 30 ⁇ m to approximately 120 ⁇ m.
- the thickness of the film is preferably as thin as possible in order to allow a high production rate.
- the film being composed of three layers, it is necessary that the thicknesses of the respective layers remain sufficient to be able to be extruded.
- the middle layer is thicker than each of the outer layers, it is not possible in practice to descend below 30 ⁇ m.
- the film had a thickness of 40 ⁇ m, with a middle layer of 20 ⁇ m and two outer layers of 10 ⁇ m.
- the flexibility is a function of the density d. This is the reason for the choice of LLDPE, the density of which may vary slightly within a range between 0.919 ⁇ d ⁇ 0.930 g / cm 3 .
- flexibility is a function of density and MI melt index.
- the density d can vary between 0.895 ⁇ d ⁇ 0.905 g / cm 3 , while the melt index can vary between 0.75 and 0.85.
- the Vicat temperature which is the softening temperature of the material, must not be too far between the different layers to allow their co-extrusion. In the above example, the Vicat T ° v point of the LLDPE must be> 100 ° C, while that of the PP must be ⁇ 160 ° C. Preferably, these points are between 110 ° and 150 ° C.
- the proportion of slip agent in this example the Eruca ide ® must be less than 1300 ppm.
- this slip agent is only necessary for the layer of multilayer film adjacent to the face of this sheet intended to be located inside the valve duct, it is preferable to incorporate it into the two external layers. since it is then very difficult to differentiate between these two outer layers and there would therefore be a risk of turning the film on the wrong side. By having the two sides identical, this problem no longer exists.
- the film according to the invention is not subjected to any corona oxidation treatment.
- the single figure of the appended drawing shows, schematically and by way of example, a plan view of a valve produced using a multilayer film which is the subject of the present invention.
- This valve is intended to be inside a container, in particular a sealed bag, not shown, intended for the packaging of a liquid, in particular a drink.
- a container in particular a sealed bag, not shown, intended for the packaging of a liquid, in particular a drink.
- two thicknesses la, lb of this film superimposed. These two film thicknesses 1a, 1b are joined by a welding line 2, providing between them a conduit 3 forming the distribution valve.
- a cut 4 allows the conduit 3 to communicate with the outside, that is to say with the contents of the container.
- This conduit 3 is normally closed, the two thicknesses of film 1a, 1b being contiguous. It is by introducing an element to separate them that the valve opens and that the liquid can then circulate between the interior of the container and the exterior through the conduit 3.
- the element serving to open the conduit 3 is itself - Even formed by a conduit, in particular by a straw 5.
- the end of this straw has a bulge 5a, as described in EP 98420015.4.
- the inlet portion 3a of the conduit 3 of the valve is narrowed and has a perimeter corresponding to that of the straw 5, so that this inlet portion 3a fits around this straw 5 and opposes the passage of the bulged part 5a.
- the front end of the bulged part 5a of the straw 5 has a gradually increasing section, while the rear of this bulged part is connected by a bearing to the cylindrical part of the straw 5, which prevents it from coming out through the inlet portion 3a of the conduit 3.
- the multilayer film 1a, 1b forming this valve must have sufficient elasticity to tighten around the straw 5 after the passage of this bulged part 5a. This is in particular one of the roles of the multilayer film which is the subject of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Bag Frames (AREA)
- Materials For Medical Uses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Packages (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK02102348.3A HK1040961A1 (zh) | 1998-12-07 | 1999-12-03 | 多层复合薄膜及其应用 |
| AT99956278T ATE255007T1 (de) | 1998-12-07 | 1999-12-03 | Mehrschichtfilm und seine verwendung |
| AU12915/00A AU1291500A (en) | 1998-12-07 | 1999-12-03 | Multilayer composite film and use thereof |
| JP2000586514A JP2002531303A (ja) | 1998-12-07 | 1999-12-03 | 多層の複合フィルムおよびこのフィルムの使用 |
| DE69913196T DE69913196D1 (de) | 1998-12-07 | 1999-12-03 | Mehrschichtfilm und seine verwendung |
| EP99956278A EP1137538B1 (fr) | 1998-12-07 | 1999-12-03 | Film composite multicouches et utilisation de ce film |
| US09/875,482 US20020127382A1 (en) | 1998-12-07 | 2001-06-06 | Multilayer composite film and use of this film |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98420226.7 | 1998-12-07 | ||
| EP98420226A EP1008446A1 (fr) | 1998-12-07 | 1998-12-07 | Film composite multicouches et utilisation de ce film |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/875,482 Continuation US20020127382A1 (en) | 1998-12-07 | 2001-06-06 | Multilayer composite film and use of this film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000034039A1 true WO2000034039A1 (fr) | 2000-06-15 |
Family
ID=8235636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB1999/001930 Ceased WO2000034039A1 (fr) | 1998-12-07 | 1999-12-03 | Film composite multicouches et utilisation de ce film |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20020127382A1 (fr) |
| EP (2) | EP1008446A1 (fr) |
| JP (1) | JP2002531303A (fr) |
| CN (1) | CN1121944C (fr) |
| AT (1) | ATE255007T1 (fr) |
| AU (1) | AU1291500A (fr) |
| DE (1) | DE69913196D1 (fr) |
| HK (1) | HK1040961A1 (fr) |
| WO (1) | WO2000034039A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1283242A1 (fr) * | 2001-08-03 | 2003-02-12 | Amcor Flexibles Transpac N.V. | Mélanges de copolymère de propylène Hétérophase et procédé pour sa production |
| JP4932149B2 (ja) * | 2004-10-20 | 2012-05-16 | 大日本印刷株式会社 | 液体用紙容器 |
| EP1759833A1 (fr) * | 2005-08-30 | 2007-03-07 | Borealis Technology Oy | Film |
| CA2648924C (fr) | 2006-05-16 | 2014-07-08 | Ciba Holding Inc. | Films souffles mono- et multi-couches |
| CN101844643B (zh) * | 2010-05-25 | 2012-01-18 | 杨志 | 用于背胶袋的改性聚丙烯薄膜及其制备方法 |
| US20120263924A1 (en) | 2011-04-12 | 2012-10-18 | Paul Thomas Weisman | Multi-Layer Films And Methods Of Forming Same |
| CN104015988B (zh) * | 2014-05-30 | 2016-08-17 | 安徽先知缘食品有限公司 | 一种多功能包装袋 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247896A1 (fr) * | 1986-05-30 | 1987-12-02 | Exxon Chemical Patents Inc. | Films scellables |
| WO1991010565A1 (fr) * | 1990-01-08 | 1991-07-25 | Paragon Films Incorporated | Pellicule etirable a une seule face d'accrochage |
| US5085927A (en) * | 1990-04-10 | 1992-02-04 | Paragon Films, Inc. | Stretch film cling enhancement by addition of elastomers |
| US5093188A (en) * | 1989-09-21 | 1992-03-03 | Paragon Films, Inc. | Single-sided cling stretch film |
| JPH04163041A (ja) * | 1990-10-24 | 1992-06-08 | Idemitsu Petrochem Co Ltd | 多層フィルム |
| JPH09207294A (ja) * | 1996-02-07 | 1997-08-12 | Tonen Chem Corp | 低温ヒートシール性ポリプロピレン多層フィルム |
| JPH09314769A (ja) * | 1996-05-30 | 1997-12-09 | Sekisui Chem Co Ltd | シーラントフィルム |
| JPH10272747A (ja) * | 1997-03-31 | 1998-10-13 | Kohjin Co Ltd | 積層ストレッチシュリンクフイルム |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756219A (en) * | 1996-01-16 | 1998-05-26 | Aep Industries, Inc. | Industrial stretch films |
-
1998
- 1998-12-07 EP EP98420226A patent/EP1008446A1/fr not_active Withdrawn
-
1999
- 1999-12-03 WO PCT/IB1999/001930 patent/WO2000034039A1/fr not_active Ceased
- 1999-12-03 AU AU12915/00A patent/AU1291500A/en not_active Abandoned
- 1999-12-03 EP EP99956278A patent/EP1137538B1/fr not_active Expired - Lifetime
- 1999-12-03 DE DE69913196T patent/DE69913196D1/de not_active Expired - Lifetime
- 1999-12-03 AT AT99956278T patent/ATE255007T1/de not_active IP Right Cessation
- 1999-12-03 JP JP2000586514A patent/JP2002531303A/ja active Pending
- 1999-12-03 CN CN99814132A patent/CN1121944C/zh not_active Expired - Fee Related
- 1999-12-03 HK HK02102348.3A patent/HK1040961A1/zh unknown
-
2001
- 2001-06-06 US US09/875,482 patent/US20020127382A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0247896A1 (fr) * | 1986-05-30 | 1987-12-02 | Exxon Chemical Patents Inc. | Films scellables |
| US5093188A (en) * | 1989-09-21 | 1992-03-03 | Paragon Films, Inc. | Single-sided cling stretch film |
| WO1991010565A1 (fr) * | 1990-01-08 | 1991-07-25 | Paragon Films Incorporated | Pellicule etirable a une seule face d'accrochage |
| US5085927A (en) * | 1990-04-10 | 1992-02-04 | Paragon Films, Inc. | Stretch film cling enhancement by addition of elastomers |
| JPH04163041A (ja) * | 1990-10-24 | 1992-06-08 | Idemitsu Petrochem Co Ltd | 多層フィルム |
| JPH09207294A (ja) * | 1996-02-07 | 1997-08-12 | Tonen Chem Corp | 低温ヒートシール性ポリプロピレン多層フィルム |
| JPH09314769A (ja) * | 1996-05-30 | 1997-12-09 | Sekisui Chem Co Ltd | シーラントフィルム |
| JPH10272747A (ja) * | 1997-03-31 | 1998-10-13 | Kohjin Co Ltd | 積層ストレッチシュリンクフイルム |
Non-Patent Citations (4)
| Title |
|---|
| DATABASE WPI Section Ch Week 9229, Derwent World Patents Index; Class A92, AN 92-239419, XP002105428 * |
| DATABASE WPI Section Ch Week 9742, Derwent World Patents Index; Class A17, AN 97-452948, XP002105425 * |
| DATABASE WPI Section Ch Week 9808, Derwent World Patents Index; Class A17, AN 98-081490, XP002105426 * |
| DATABASE WPI Section Ch Week 9851, Derwent World Patents Index; Class A17, AN 98-602642, XP002105427 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121944C (zh) | 2003-09-24 |
| US20020127382A1 (en) | 2002-09-12 |
| AU1291500A (en) | 2000-06-26 |
| EP1008446A1 (fr) | 2000-06-14 |
| JP2002531303A (ja) | 2002-09-24 |
| ATE255007T1 (de) | 2003-12-15 |
| EP1137538A1 (fr) | 2001-10-04 |
| HK1040961A1 (zh) | 2002-06-28 |
| CN1329543A (zh) | 2002-01-02 |
| EP1137538B1 (fr) | 2003-11-26 |
| DE69913196D1 (de) | 2004-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH630024A5 (fr) | Fermeture notamment pour recipient. | |
| BE1009397A3 (fr) | Tube ou feuille multicouche. | |
| FR2582620A1 (fr) | Emballage en carton pouvant etre referme hermetiquement et flan et base de carton pour sa fabrication | |
| CA2304008A1 (fr) | Poches souples pour le transport de produits fluides bio-pharmaceutiques | |
| EP2094483B1 (fr) | Capsule de bouchage a joint de forme multicouche | |
| EP1137538B1 (fr) | Film composite multicouches et utilisation de ce film | |
| FR2943268A1 (fr) | Moule de thermofromage a isolation thermique et procede associe. | |
| EP1878567A4 (fr) | Film de resine de polypropylene a couches multiples thermoscellable et materiau d emballage | |
| CA2027886C (fr) | Feuille multicouche en matiere plastique pour constituer desrecipients destines a etre fermes par un opercule soude, et recipients forme a partir de cette feuille | |
| WO2008129369A1 (fr) | Recipient pour vin ou boisson similaire | |
| EP2605906B1 (fr) | Dispositif biopharmaceutique à usage unique d'élaboration, stockage, transport d'un produit biopharmaceutique et tube multicouche correspondant | |
| EP2041002A2 (fr) | Dispositif de conditionnement d'un produit alimentaire, tel qu'un fromage, et son procede de fabrication | |
| EP0856554B1 (fr) | Conditionnement injecté constitué d'un matériau plastique présentant une bonne résistance au stress-cracking et matériau utilisable pour sa fabrication | |
| EP1077186A1 (fr) | Feuille d'emballage stratifiée permettant la refermeture et emballage la comportant | |
| FR2497214A1 (fr) | Materiau en feuille et emballage comportant des zones de fermeture detachables, realise a partir dudit materiau | |
| EP1549564B1 (fr) | Procede de conditionnement de produits perissables et emballage pour produits perissables | |
| FR2807015A1 (fr) | Feuille d'emballage stratifiee et emballage refermable la comportant | |
| EP1293445B1 (fr) | Emballage à ouverture facile pour produits alimentaires | |
| FR2945750A1 (fr) | Connecteur pour recipient souple destine a contenir un liquide medical | |
| EP0611200B1 (fr) | Dispositif de fermeture étanche et de raccordement d'une enceinte à une canalisation extérieure | |
| FR2636606A1 (fr) | Conteneur destine a recevoir des substances a steriliser et son procede d'obtention | |
| EP1063174B1 (fr) | Emballage avec garantie d'inviolabilité et procédé pour sa fabrication | |
| CA2653008A1 (fr) | Emballage flexible en matiere plastique | |
| FR2876670A1 (fr) | Perfectionnements aux sacs en papier multi-plis, comprenant un film ou similaire impermeable a l'air, interpose entre deux plis de papier | |
| FR2819489A1 (fr) | Bandelette de scellage pour un emballage et emballage la comportant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 99814132.1 Country of ref document: CN |
|
| ENP | Entry into the national phase |
Ref document number: 2000 12915 Country of ref document: AU Kind code of ref document: A |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 09875482 Country of ref document: US |
|
| ENP | Entry into the national phase |
Ref document number: 2000 586514 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1999956278 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2001/00574/DE Country of ref document: IN |
|
| WWP | Wipo information: published in national office |
Ref document number: 1999956278 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1999956278 Country of ref document: EP |