CA2381055C - Dispositif de fermeture - Google Patents
Dispositif de fermeture Download PDFInfo
- Publication number
- CA2381055C CA2381055C CA002381055A CA2381055A CA2381055C CA 2381055 C CA2381055 C CA 2381055C CA 002381055 A CA002381055 A CA 002381055A CA 2381055 A CA2381055 A CA 2381055A CA 2381055 C CA2381055 C CA 2381055C
- Authority
- CA
- Canada
- Prior art keywords
- density
- closure element
- flange portion
- density polyethylene
- closure
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 22
- 239000004702 low-density polyethylene Substances 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 14
- 239000004677 Nylon Substances 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920001778 nylon Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 229920001903 high density polyethylene Polymers 0.000 claims description 8
- 239000004700 high-density polyethylene Substances 0.000 claims description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 7
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 7
- 229920001179 medium density polyethylene Polymers 0.000 claims description 7
- 239000004701 medium-density polyethylene Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims 3
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 3
- 239000012815 thermoplastic material Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 2
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001470 polyketone Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Slide Fasteners (AREA)
- Bag Frames (AREA)
- Closures For Containers (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Cette invention concerne un dispositif de fermeture comprenant une première et une seconde bandes de fixation encastrables. La première bande de fixation comporte un élément de fermeture réalisé par extrusion sur une partie rebord. L'élément de fermeture et la partie rebord sont faits de matériaux de densités différentes, ce qui permet d'agir sur la forme des bandes de fixation. Ce différentiel de densité permettent d'atténuer ou de supprimer l'effet de cintrage des bandes de fixation qui apparaît pendant le processus de fabrication. Comme l'élément de fermeture a une moindre densité, mais un volume plus important, et que la partie rebord est faite dans un matériau à la densité plus élevée, le taux de cristallisation de cette partie est le même que celui de l'élément de fermeture. Cette différence de densité permet d'atténuer ou d'éliminer le cintrage des bandes de fixation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2000/040120 WO2001094212A2 (fr) | 2000-06-06 | 2000-06-06 | Dispositif de fermeture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2381055A1 CA2381055A1 (fr) | 2001-12-13 |
| CA2381055C true CA2381055C (fr) | 2006-11-21 |
Family
ID=21742120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002381055A Expired - Fee Related CA2381055C (fr) | 2000-06-06 | 2000-06-06 | Dispositif de fermeture |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU780866B2 (fr) |
| CA (1) | CA2381055C (fr) |
| WO (1) | WO2001094212A2 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5056933A (en) * | 1986-07-22 | 1991-10-15 | First Brands Corporation | Multiposition interlocking closure fastening device |
| US5655273A (en) * | 1996-04-18 | 1997-08-12 | Reynolds Consumer Products, Inc. | Minimal curl sealing flange |
| US5664299A (en) * | 1996-09-10 | 1997-09-09 | Dowbrands L.P. | Reclosable fastener assembly |
| US5944425A (en) * | 1997-05-22 | 1999-08-31 | Forman; Harold M | Packages with unitarilly formed resealable closure |
-
2000
- 2000-06-06 WO PCT/US2000/040120 patent/WO2001094212A2/fr not_active Ceased
- 2000-06-06 AU AU61191/00A patent/AU780866B2/en not_active Ceased
- 2000-06-06 CA CA002381055A patent/CA2381055C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU6119100A (en) | 2001-12-17 |
| AU780866B2 (en) | 2005-04-21 |
| WO2001094212A2 (fr) | 2001-12-13 |
| WO2001094212A3 (fr) | 2008-03-20 |
| CA2381055A1 (fr) | 2001-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130606 |