WO2016061127A1 - Fermeture de contenant - Google Patents

Fermeture de contenant Download PDF

Info

Publication number
WO2016061127A1
WO2016061127A1 PCT/US2015/055372 US2015055372W WO2016061127A1 WO 2016061127 A1 WO2016061127 A1 WO 2016061127A1 US 2015055372 W US2015055372 W US 2015055372W WO 2016061127 A1 WO2016061127 A1 WO 2016061127A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
package
sheet
brim
container
Prior art date
Application number
PCT/US2015/055372
Other languages
English (en)
Inventor
Jeffrey C. Minnette
Ken JOCHEM
Krishnaraju Varadarajan
Original Assignee
Berry Plastics Corporation
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 Berry Plastics Corporation filed Critical Berry Plastics Corporation
Publication of WO2016061127A1 publication Critical patent/WO2016061127A1/fr

Links

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
    • B65D55/00—Accessories for container closures not otherwise provided for
    • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
    • B65D55/026—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure initial opening or unauthorised access being indicated by a visual change using indicators other than tearable means, e.g. change of colour, pattern or opacity
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/55—Tamper-indicating means based on a change or a contrast in colour

Definitions

  • the present disclosure relates to a package, and particularly to a package including a closure for mounting on a brim of a container. More particularly, the present disclosure relates to a re-closable closure provided with a membrane sheet that mates with a container brim when the closure is mounted on the container brim.
  • a package includes a closure adapted to mate with a brim of a container to close an opening that opens into an interior product- storage region formed in the container.
  • the closure includes a sheet-support ring and a multilayer sheet.
  • the sheet-support ring is coupled to the brim by a snap-fit connection.
  • the multilayer sheet is coupled permanently to the sheet-support ring by a permanent bond and coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless hermetic seal to be established between the brim and the multi-layer sheet.
  • the multi-layer sheet is configured to provide means for communicating visually to a user that the closure has been separated from the container previously in response to separation of the closure from the container.
  • the multi-layer sheet includes an outer layer, an inner layer, and a coupling layer.
  • the outer layer is spaced apart from the brim.
  • the inner layer is located between the outer layer and brim and cooperates with the brim to establish the temporary bond.
  • the coupling layer is located between the inner and outer layers and is configured to provide means for causing an inner portion of the inner layer to delaminate in a controlled manner from the coupling layer in response to separation of the sheet-support ring from the brim a first time to cause the film lid to be established while maintaining the hermetic seal between the film lid and the brim so that the removable cover is established for covering the top aperture after the film lid is removed and separated from the container.
  • the coupling layer is an adhesive layer.
  • the inner layer includes an inner portion, an outer portion, and a peel-initiation zone.
  • the outer portion is located in spaced-apart relation to the inner portion.
  • the peel-initiation zone is located between the inner portion and the outer portion and is configured to provide means for causing the inner portion of the inner layer to delaminate in a controlled manner from the coupling layer in response to separation of the sheet-support ring from the brim to cause the film lid to be established while maintaining the hermetic seal between the film lid and the brim so that the removable cover is established for covering the top aperture after the film lid is removed and separated from the container.
  • a package in illustrative embodiments, includes a container and a closure.
  • the container includes a bowl formed to include a product-storage region therein and a brim coupled to the bowl and formed to include a top aperture arranged to open into the product- storage region.
  • the closure includes a sheet-support ring and a multi-layer sheet.
  • the sheet-support ring is coupled to the brim.
  • the multi-layer sheet includes an outer layer, an inner layer, and a coupling layer. The outer layer is coupled permanently to the sheet-support ring by a first permanent bond.
  • the inner layer is coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless seal to be established between the brim and the inner layer of the multi-layer sheet.
  • the coupling layer is located between the inner and outer layers and configured to provide means for communicating visually to a user that the closure has been separated previously from the container by a user.
  • a package in illustrative embodiments, includes a container and a closure.
  • the container includes a bowl formed to include a product-storage region therein and a brim coupled to the bowl and formed to include a top aperture arranged to open into the product- storage region.
  • the closure includes a sheet-support ring and a multi-layer sheet.
  • the sheet-support ring is coupled to the brim.
  • the multi-layer sheet is coupled permanently to the sheet-support ring by a permanent bond and coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless hermetic seal to be established between the brim and the multi-layer sheet.
  • the sheet-support ring is configured to provide means for communicating visually to a user that the closure has been separated from the container previously in response to separation of the closure from the container.
  • FIG. 1 is a perspective view of a package in accordance with the present disclosure showing that the package includes a rectangle-shaped container and a rectangle- shaped closure mounted on a brim included in the container, the closure including a substantially flat multi-layer sheet as suggested in Figs. 4 and 8 that is bonded permanently to a sheet-support ring and bonded temporarily to an upwardly facing surface of the brim at a container- filling factory;
  • Fig. 2 is a sectional view taken along line 2-2 of Fig. 1 ;
  • FIG. 3 is an enlarged portion of Fig. 2 showing that the closure is coupled to the brim of the container and the multi-layer sheet is coupled by a temporary bond (represented as XXXXXX) to the brim of the container;
  • Fig. 4 is an enlarged portion of Fig. 3 showing that the multi-layer sheet includes an outer layer, an inner sealant layer, and a coupling layer located therebetween and suggesting that during separation of the closure from the container, the multi-layer sheet delaminates in a controlled manner to establish a removable cover including the sheet-support ring, the outer layer of the multi-layer sheet, and an outer portion of the inner layer, and a film lid separated from the removable cover and coupled to the brim by the temporary bond (represented as XXXXXXX) as a result of the multi-layer sheet delaminating in a controlled manner as a result of peel-initiation zone being formed in the inner layer between the temporary bond and the sheet-support ring;
  • FIG. 5 is a partial perspective view of the package of Fig. 1 showing that the sheet-support ring includes a support band extending around the brim of the container and a closure-opening tab appended to the support band and showing that the multi-layer sheet includes a peel-initiation tab appended to a body of the multi-layer sheet and the peel-initiation tab extends beyond the brim of the container to simplify removal of the film lid after delamination and removal of the removable lid from the container;
  • FIG. 6 is perspective view of the package of Fig. 1 showing the package after a user has caused the inner layer of the multi-layer sheet to delaminate forming the removable cover located in spaced-apart relation above the container and the film lid coupled to the brim of the container;
  • Fig. 7 is a view similar to Fig. 6 showing the container after the user has peeled the film lid away from the container overcoming the temporary bond coupling the film lid to the brim to expose a top aperture formed in the container that is arranged to open into an interior product-storage region formed in the container;
  • Fig. 8 is a view similar to Fig. 4 showing the removable cover coupled to the brim of the container by the sheet-support ring after the film lid has been peeled away from the brim of the container;
  • Fig. 9 is a diagrammatic view of another embodiment of a package in accordance with the present disclosure showing that the package includes a round-shaped container and a round-shaped closure and suggesting that the package may be configured, from left to right, in various states such as the closure coupled to the container, a removable cover separated from the film lid coupled to the container, the removable cover and the film lid separated from the container, and the removable cover coupled to the container without the film lid;
  • FIG. 10 is a perspective view of another embodiment of a package in accordance with the present disclosure showing that the package includes a rectangle-shaped container and a rectangle-shaped closure mounted on a brim included in the container and including a removable cover including a multi-layer sheet bonded permanently to a sheet-support ring and a film lid bonded temporarily to the multi-layer sheet and an upwardly facing surface of the brim;
  • Fig. 11 is an exploded assembly view of the package of Fig. 10 showing that the package includes, from top to bottom, the removable cover including the sheet-support ring and the multi-layer sheet, the film lid, and the container;
  • Fig. 12 is a sectional view taken along line 12-12 of Fig. 10 showing that the multi-layer sheet includes an outer layer and a coupling layer located between the outer layer and the film lid and suggesting that during separation of the closure from the container, the film lid delaminates from the coupling layer in a controlled manner to establish the removable cover including the sheet-support ring, the outer layer of the multi-layer sheet, and the coupling layer, and the film lid separated from the removable cover and coupled to the brim by the temporary bond (represented as XXXXXX) as a result of the film lid delaminating in a controlled manner as a result of the temporary bond (represented as XXXXXX) having a greater bond strength than the bond between the coupling layer and the film lid;
  • Fig. 13 is a view similar to Fig. 12 showing the removable cover coupled to the brim of the container by the sheet-support ring after the film lid has been peeled away from the brim of the container;
  • Fig. 14 is a perspective view of another embodiment of a package in accordance with the present disclosure showing that the package includes a circular-shaped container and a circular-shaped closure mounted on a brim included in the container and including a sheet- support ring coupled to the brim of the container and a multi-layer sheet bonded permanently to the sheet-support ring and bonded temporarily to an upwardly facing surface of the brim and suggesting that a removable cover and a film lid are established from the circular-shaped closure in response to application of a cover-separation force to the sheet-support ring as suggested in Fig. 15;
  • Fig. 15 is a view similar to Fig. 14 showing the removable cover spaced apart from the film lid in response to application of the cover-separation force to the sheet-support ring and suggesting that the removable cover includes a lower annular band included in the sheet-support ring and an outer layer of the multi-layer sheet and that the film lid includes an upper annular band included in the sheet-support ring and an inner layer of the multi-layer sheet;
  • Fig. 16 is a view similar to Fig. 15 showing the film lid separated from the brim of the container in response to application of a lid-removal force to a lid tab included in the upper annular band to cause access to be provided to an interior product- storage region formed in the container through a top aperture formed in the container;
  • Fig. 17 is a view similar to Fig. 16 showing the removable cover coupled to the brim of the container after the film lid has been removed from the container to cause access to the top aperture to be blocked;
  • Fig. 18 is a sectional view taken along line 18-18 of Fig. 14 showing that the inner layer of the multi-layer sheet is coupled temporarily to the upwardly facing surface of the brim and coupled permanently to the outwardly facing surface of the upper annular band of the sheet-support ring and the outer layer of the multi-layer sheet is coupled temporarily to the inner layer and coupled permanently to the lower annular band of the sheet-support ring and showing that the upper annular band is coupled to the lower annular band by a series of spaced-apart frangible connectors;
  • Fig. 19 is a sectional view taken along line 19-19 of Fig. 15 showing the film lid coupled to the brim of the container after the removable cover has been spaced apart from the film lid and the brim of the container in response to application of the cover-separation force to the sheet- support ring;
  • Fig. 20 is a sectional view taken along line 20-20 of Fig. 17 showing the removable cover coupled to the brim of the container by the sheet-support ring after the film lid has been peeled away from the brim of the container.
  • a first embodiment of a package 10 in accordance with the present disclosure is shown, for example, in Fig. 1.
  • Package 10 includes a container 12 and a closure 14 mounted on container 12 to close selectively a top aperture 16 formed in container 12 as suggested in Figs. 2 and 7.
  • Closure 14 includes a sheet-support ring 24 and a multi-layer sheet 22 configured to provide means for communicating visually to a user that closure 14 has been separated from container 12 previously in response to separation of closure 14 from container 12.
  • a second embodiment of a package 110 in accordance with the present disclosure is shown in Fig. 9.
  • a third embodiment of a package 210 in accordance with the present disclosure is shown in Figs. 10-13.
  • a fourth embodiment of a package 310 in accordance with the present disclosure is shown in Figs. 14-20.
  • Package 10 is configured to receive and store products such as, for example, food.
  • Container 12 includes a bowl 17 that is formed to include an interior product- storage region 36 therein and top aperture 16 that is arranged to open into interior product- storage region 36.
  • Closure 14 is configured to mount on container 12 to close top aperture 16 and selectively block access to interior product- storage region 36.
  • Container 12 includes bowl 17 and a brim 18 as shown, for example, in Fig. 2.
  • Closure 14 is mounted on brim 18 of container 12 as suggested in Figs. 1-5.
  • Closure 14 includes multi-layer sheet 22 and sheet-support ring 24 as shown in Figs. 1-5.
  • Multi-layer sheet 22 is coupled permanently to sheet-support ring 24 by a permanent bond 42P as shown in Fig. 3.
  • Multi-layer sheet 22 is bonded temporarily by a temporary bond 42T to an upwardly facing top surface 18U of container brim 18 at a container-filling factory to establish an endless hermetic seal between closure 14 and container brim 18 as suggested in Figs. 1-5.
  • Multi-layer sheet 22 includes an outer layer 22A, an inner layer 22C spaced apart from outer layer 22A, and a coupling layer 22B located therebetween as shown in Fig. 4.
  • coupling layer 22B is an adhesive layer 22B.
  • multi-layer sheet 22 is shown to include three layers, more or less layers may be included in accordance with the present disclosure.
  • U.S. Patent Application No. 14/454,283, filed on August 7, 2014, is hereby incorporated by reference in its entirety for disclosure relating to multi-layer sheet compositions and formulations of various layers therein in accordance with the present disclosure.
  • Closure 14 is coupled to container 12 in a container-filling factory.
  • multi-layer sheet 22 is coupled to brim 18 of container 12 by temporary bond 42T (represented as XXXXXX) as shown in Fig. 4.
  • Portions of multi-layer sheet 22 are coupled to sheet- support ring 24 by permanent bond 42P.
  • Package 10 is opened in a series of illustrative steps in which package 10 assumes various configurations including a closed-sealed arrangement as shown in Fig. 1 , an opened-sealed arrangement as shown in Fig. 6, an opened arrangement as shown in Fig. 7, and a closed arrangement as shown in Fig. 8.
  • Package 10 is established in the container- filling factory in the closed-sealed arrangement.
  • a continuous hermetic seal is established between multi-layer sheet 22 and brim 18 by temporary bond 42T.
  • temporary bond 42T is a heat bond formed as a result of a sealing head using heat to establish temporary bond 42T.
  • a consumer/purchaser/user of package 10 in the field causes package 10 to assume the opened-sealed arrangement by pulling sheet-support ring 24 away from container 12.
  • portions of inner layer 22C of multi-layer sheet 22 delaminate in a controlled manner to cause a removable cover 20 and a film lid 26 to be established as shown in Fig. 6.
  • an outer portion 22C1 of inner layer 22C of multilayer sheet 22 remains coupled to coupling layer 22B and sheet-support ring 24 establishing removable cover 20 as shown in Fig. 8.
  • a remaining inner portion 22C2 of inner layer 22C remains coupled to brim 18 by temporary bond 42T to establish film lid 26 as shown in Fig. 6.
  • Inner layer 22C includes a peel-initiation zone 28 located between inner portion
  • Peel-initiation zone 28 is configured to provide means for causing inner layer 22C to delaminate in a controlled manner in response to separation of sheet-support ring 24 from brim 18 to cause film lid 26 to be established while maintaining the hermetic seal between film lid 26 and brim 18 so that removable cover 20 is established for covering top aperture 16 after film lid 26 is removed and separated from container 12.
  • peel-initiation zone 28 is an area of weakness in inner layer 22C of multi-layer sheet 22.
  • the area of weakness may be a series of spaced-apart cuts formed in multi-layer sheet 22 and extending through only inner layer 22C.
  • the area of weakness may be a continuous cut formed in multi-layer sheet 22 that extends only through inner layer 22C.
  • the area of weakness is a continuous and uninterrupted cut formed in inner layer 22C and arranged to extend only through inner layer 22C. The cut is located between inner portion 22C2 of inner layer 22C and outer portion 22C1 of inner layer 22C.
  • peel-initiation zone 28 is formed as a result of inner layer 22C being configured to fracture during removal of sheet-support ring 24 from brim 18 in such a way as to establish film lid 26 that maintains the hermetic seal between brim 18 and film lid 26.
  • a combination of factors may be adjusted to provide for a peel-initiation zone 28 in accordance with the present disclosure. The factors may include the inner layer formulation, adhesive strength of adhesive layer 22B, and the strength of temporary bond 42T formed between inner layer 22C and brim 18.
  • sheet-support ring 24 includes a support band 32 arranged to extend around brim 18 and a closure-opening tab 38.
  • Closure-opening tab 38 is appended to support band 32 to extend outwardly beyond a perimeter of support band 32 and is configured to be grasped by a consumer/purchaser/user of package 10 in the field (e.g., home) and simplify application of an opening force to closure 14 to cause package 10 to assume the opened-sealed arrangement.
  • Multi-layer sheet 22 includes a body 40 arranged to cover and close top aperture
  • peel-initiation tab 44 is appended to body 40 of multilayer sheet 22 and arranged to extend beyond brim 18 to simplify removal of film lid 26 after delamination and removal of removable cover 20 from container 12.
  • package 10 is caused to assume the opened arrangement of package 10 in which access to interior product- storage region 36 is allowed through top aperture 16 as shown in Fig. 7.
  • removable cover 20 may be coupled to brim 18 to establish the closed arrangement as shown in Fig. 8.
  • removable cover 20 closes top aperture 16 and blocks access to interior product- storage region 36 by dust, dirt, etc.
  • inner portion 22C2 of inner layer 22C delaminates from outer layer 22A to expose adhesive layer 22B.
  • Adhesive layer 22B may be used to establish an adhesive bond between removable cover 20 and brim 18. As a result, access to interior product- storage region 36 by water, liquids, air etc. may be blocked or minimized.
  • outer layer 22 A includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of outer layer 22A when package 10 is in a closed-sealed arrangement and is further configured to communicate second visual information through the portion of outer layer 22A when package 10 is in an opened arrangement.
  • Coupling layer 22B includes a portion that is transparent to light and configured to allow a user to view visual information through the portion of coupling layer 22B.
  • the first visual information is one of an image, text, embossing, or a color and is included in inner layer 22C.
  • the second visual information is one of an image, text, embossing, or a color, the second visual information is different than the first visual information, and the second visual information is included in brim 18 of container 12.
  • Package 110 includes a container 112 and a closure 114.
  • Package 110 may be arranged in one of a closed-sealed arrangement, an opened-sealed arrangement, an opened arrangement, and a closed arrangement at the option of the user as suggested in Fig. 9.
  • Container 112 includes bowl 117 and a brim 118 as shown, for example, in Fig.
  • Closure 114 is mounted on brim 118 of container 112 as suggested in Fig. 9.
  • Closure 114 includes a multi-layer sheet 122 and a sheet-support ring 124 as shown in Fig. 9.
  • Multi-layer sheet 122 is coupled permanently to sheet-support ring 124 by a permanent bond.
  • Multi-layer sheet 122 is bonded temporarily by a temporary bond to an upwardly facing top surface 118U of container brim 118 at a container-filling factory to establish an endless hermetic seal between closure 114 and container brim 118 as suggested in Fig. 9.
  • Multi-layer sheet 122 includes an outer layer, an inner layer spaced apart from the outer layer, and an adhesive layer located therebetween. While multi-layer sheet 122 is shown to include three layers, more or less layers may be included in accordance with the present disclosure.
  • Closure 114 is coupled to container 112 in a container-filling factory.
  • multi-layer sheet 122 is coupled to brim 118 of container 112 by a temporary bond.
  • Portions of multi-layer sheet 122 are coupled to sheet-support ring 124 by a permanent bond.
  • Package 110 is opened in a series of steps in which package 110 assumes various configurations including the closed-sealed arrangement, the opened-sealed arrangement, the opened arrangement, and the closed arrangement as shown in Fig. 9.
  • a consumer/purchaser/user of package 110 in the field e.g., home
  • portions of the inner layer of multi-layer sheet 122 delaminate in a controlled manner to cause a removable cover 120 and a film lid 126 to be established as shown in Fig. 9.
  • an outer portion of the inner layer of multilayer sheet 122 remains coupled to the adhesive layer and sheet- support ring 124 establishing removable cover 120 as shown in Fig. 9.
  • a remaining inner portion of the inner layer remains coupled to brim 118 by the temporary bond to establish film lid 126 as shown in Fig. 9.
  • the inner layer includes a peel-initiation zone located between the inner portion and the outer portion of the inner layer.
  • the peel-initiation zone is configured to provide means for causing a portion of the inner layer to delaminate in a controlled manner in response to separation of sheet-support ring 124 from brim 118 to cause film lid 126 to be established while maintaining the hermetic seal between film lid 126 and brim 118 so that removable cover 120 is established for covering a top aperture 116 after film lid 126 is removed and separated from container 112.
  • removable cover 120 may be coupled to brim 118 to establish the closed arrangement.
  • removable cover 120 closes top aperture 116 and blocks access to interior product-storage region 136 by dust, dirt, etc.
  • the inner portion of the inner layer delaminates from the outer layer to expose the adhesive layer.
  • the adhesive layer may be used to establish an adhesive bond between the removable cover and the brim 118. As a result, access to interior product- storage region 136 by water, liquids, air etc. may be blocked or minimized.
  • FIG. 10-13 Another embodiment of a package 210 in accordance with the present disclosure is shown in Figs. 10-13.
  • Package 210 is configured to receive and store products such as, for example, food.
  • Package 210 includes container 12 and a closure 214 mounted on container 12 to close selectively top aperture 16 formed in container 12 as shown in Figs. 10 and 12.
  • Closure 214 includes sheet-support ring 24 and a multi-layer sheet 222 configured to provide means for communicating visually to a user that closure 214 has been separated from container 12 previously in response to separation of closure 214 from container 12.
  • Container 12 includes bowl 17 that is formed to include interior product-storage region 36 therein and top aperture 16 that is arranged to open into interior product- storage region 36 as shown in Fig. 11.
  • Closure 214 is configured to mount on container 12 to close top aperture 16 and selectively block access to interior product- storage region 36 as shown in Figs. 10, 12, and 13.
  • Closure 214 is mounted on brim 18 of container 12 as shown in Fig. 10. Closure
  • Multilayer sheet 214 includes multi-layer sheet 222 and sheet-support ring 24 as shown in Figs. 10-13.
  • Multilayer sheet 222 is coupled permanently to sheet-support ring 24 by a permanent bond 242P as shown in Fig. 12.
  • Multi-layer sheet 222 is bonded temporarily by a temporary bond 242T to an upwardly facing top surface 18U of container brim 18 at the container- filling factory to establish an endless hermetic seal between closure 214 and container brim 18 as suggested in Figs. 10-13.
  • Multi-layer sheet 222 includes an outer layer 222A, an inner layer 222C spaced apart from outer layer 222A, and a coupling layer 222B located therebetween as shown in Fig. 12.
  • coupling layer 222B is an adhesive layer 222B. While multi-layer sheet 222 is shown to include three layers, more or less layers may be included in accordance with the present disclosure.
  • Closure 214 is coupled to container 12 in the container- filling factory.
  • multi-layer sheet 222 is coupled to brim 18 of container 12 by temporary bond 242T (represented as XXXXXX) as shown in Fig. 12.
  • Outer layer 222A of multi-layer sheet 222 is coupled to sheet-support ring 24 by permanent bond 242P.
  • Package 210 is opened in a series of illustrative steps in which package 210 assumes various configurations including a closed-sealed arrangement as shown in Figs. 10 and 12, an opened-sealed arrangement, an opened
  • Package 210 is established in the container-filling factory in the closed-sealed arrangement.
  • a continuous hermetic seal is established between multi-layer sheet 222 and brim 18 by temporary bond 242T.
  • temporary bond 242T is a heat bond formed as a result of a sealing head using heat to establish temporary bond 242T.
  • a consumer/purchaser/user of package 210 in the field causes package 210 to assume the opened-sealed arrangement by pulling sheet-support ring 24 away from container 12.
  • inner layer 222C of multi-layer sheet 222 delaminates in a controlled manner to cause a removable cover 220 and a film lid 226 to be established as suggested in Fig. 11.
  • outer layer 222A of multi-layer sheet 222 remains coupled to coupling layer 222B and sheet-support ring 24 establishing removable cover 220 as suggested in Fig. 11.
  • Inner layer 222C remains coupled to brim 18 by temporary bond 242T to establish film lid 226.
  • outer layer 222A of multilayer sheet 222 remains coupled to sheet-support ring 24 establishing removable cover 220.
  • Inner layer 222C remains coupled to coupling layer 222B and brim 18 by temporary bond 242T to establish film lid 226.
  • inner layer 222C includes a peel-initiation zone 228 that extends outward beyond brim 18 as shown in Fig. 11.
  • Peel-initiation zone 228 is configured to provide means for causing inner layer 222C to delaminate in a controlled manner in response to separation of sheet-support ring 24 from brim 18 to cause film lid 226 to be established while maintaining the hermetic seal between film lid 226 and brim 18 so that removable cover 220 is established for covering top aperture 16 after film lid 226 is removed and separated from container 12.
  • peel-initiation zone 228 is an area of weakness in inner layer 222C of multi-layer sheet 222.
  • the area of weakness may be a series of spaced-apart cuts formed in multi-layer sheet 222 and extending through only inner layer 222C.
  • the area of weakness may be a continuous cut formed in multi-layer sheet 222 that extends only through inner layer 222C.
  • peel-initiation zone 228 is formed as a result of inner layer 222C being configured to fracture during removal of sheet-support ring 24 from brim 18 in such a way as to establish film lid 226 that maintains the hermetic seal between brim 18 and film lid 226.
  • a combination of factors may be adjusted to provide for a peel-initiation zone 228 in accordance with the present disclosure. The factors may include the inner layer formulation, adhesive strength of adhesive layer 222B, and the strength of temporary bond 242T formed between inner layer 222C and brim 18.
  • sheet-support ring 24 includes a support band
  • Closure-opening tab 38 is appended to support band 32 to extend outwardly beyond a perimeter of support band 32 and is configured to be grasped by a consumer/purchaser/user of package 210 in the field (e.g., home) and simplify application of an opening force to closure 214 to cause package 210 to assume the opened-sealed arrangement.
  • Multi-layer sheet 222 includes a body 240 arranged to cover and close top aperture 16 when package 210 is in the closed-sealed arrangement or the opened-sealed arrangement and a peel-initiation tab 244 as shown in Fig. 11.
  • Peel-initiation tab 244 is appended to body 240 of multi-layer sheet 222 and arranged to extend beyond brim 18 to simplify removal of film lid 226 after delamination and removal of removable cover 220 from container 12.
  • package 210 is caused to assume the opened arrangement of package 210 in which access to interior product- storage region 36 is allowed through top aperture 16 as shown in Fig. 11.
  • removable cover 220 may be coupled to brim 18 to establish the closed arrangement as shown in Fig. 13. In the closed arrangement, removable cover 220 closes top aperture 16 and blocks access to interior product- storage region 36 by dust, dirt, etc.
  • inner layer 222C delaminates from outer layer 222A to expose adhesive layer 222B.
  • Adhesive layer 222B may be used to establish an adhesive bond between removable cover 220 and brim 18. As a result, access to interior product-storage region 36 by water, liquids, air etc. may be blocked or minimized.
  • FIG. 14-20 Another embodiment of a package 310 in accordance with the present disclosure is shown in Figs. 14-20.
  • Package 310 is configured to receive and store products such as, for example, food.
  • Package 310 includes container 112 and a closure 314 mounted on container 112 to close selectively top aperture 116 formed in container 112 as shown in Figs. 14 and 18.
  • Closure 314 includes sheet-support ring 324 and a multi-layer sheet 322 configured to provide means for communicating visually to a user that closure 314 has been separated from container 112 previously in response to separation of closure 314 from container 112.
  • Container 112 includes bowl 117 that is formed to include interior product- storage region 136 therein and top aperture 116 that is arranged to open into interior product- storage region 136 as shown in Fig. 16.
  • Closure 314 is configured to mount on container 112 to close top aperture 116 and selectively block access to interior product-storage region 136 as shown in Figs. 14-20.
  • Closure 314 is mounted on brim 118 of container 112 as shown in Fig. 14.
  • Closure 314 includes multi-layer sheet 322 and sheet-support ring 324 as shown in Figs. 14 and 18.
  • Multi-layer sheet 322 is coupled permanently to sheet-support ring 324 by a permanent bond 342P as shown in Figs. 18 and 20.
  • Multi-layer sheet 322 is bonded temporarily by a temporary bond 342T to upwardly facing top surface 118U of container brim 118 at the container- filling factory to establish an endless hermetic seal between closure 314 and container brim 118 as suggested in Fig. 18.
  • multi-layer sheet 322 includes an outer layer 322A and an inner layer 322C as shown in Fig.18. While multi-layer sheet 322 is shown to include two layers, more or less layers may be included in accordance with the present disclosure. As an example, multi-layer sheet 322 may include a coupling layer located between the outer layer 322A and the inner layer 322C. Coupling layer may couple inner layer 322C to outer layer 322A. In one example, coupling layer is an adhesive layer.
  • inner layer 322C extends about halfway down an outer surface of upper annular band 352 as shown in Fig. 19. In other embodiments, inner layer 322C extends less than about halfway down the outer surface of upper annular band 352. In other words,
  • inner layer 322C extends more than about halfway down the outer surface of upper annular band 352. In other embodiments, inner layer 322C extends downwardly beyond a bottom surface of upper annular band 352.
  • outer layer 322A extends more than about halfway down an outer surface of lower annular band 354 as shown in Fig. 20. In other embodiments, outer layer 322B extends less than about halfway down the outer surface of lower annular band 354. In other embodiments, outer layer 322B extends about halfway down the outer surface of lower annular band 354. In other embodiments, outer layer 322B extends downwardly beyond a bottom surface of lower annular band 354.
  • outer layer 322A and inner layer 322C comprise materials that resist bonding to one another so that outer layer 322A does not bond to inner layer 322C.
  • inner layer 322C extends partway down the outer surface of upper annular band 352. As such, a gap is formed between outer layer 322A and upper annular band 352 as shown in Fig. 18.
  • Sheet-support ring 324 includes an upper annular band 352, a lower annular band
  • frangible connectors 356 are arranged to extend between and interconnect upper annular band 352 and lower annular band 354 to cause lower annular band 354 to separate and move away from upper annular band 352 in response to application of a cover-removal force to lower annular band 354.
  • Closure 314 is coupled to container 112 in the container-filling factory.
  • multi-layer sheet 322 is coupled to brim 118 of container 112 by temporary bond 342T (represented as XXXXXX) as shown in Fig. 18.
  • Outer layer 322A of multi-layer sheet 322 is coupled to sheet-support ring 324 by permanent bond 342P.
  • Package 310 is opened in a series of illustrative steps in which package 310 assumes various configurations including a closed- sealed arrangement as shown in Figs. 14 and 18, an opened-sealed arrangement as shown in Figs. 15 and 19, an opened arrangement as shown in Fig. 16, and a closed arrangement as shown in Figs. 17 and 20.
  • Package 310 is established in the container-filling factory in the closed-sealed arrangement.
  • a continuous hermetic seal is established between inner layer 322C and brim 118 by temporary bond 342T.
  • temporary bond 342T is a heat bond formed as a result of a sealing head using heat to establish temporary bond 342T.
  • a consumer/purchaser/user of package 310 in the field causes package 310 to assume the opened-sealed arrangement by pulling lower annular band 354 of sheet-support ring 324 away from container 112.
  • lower annular band 354 separates from upper annular band 352 at frangible connectors 356 in a controlled manner to cause a removable cover 320 and a film lid 326 to be established as suggested in Fig. 15.
  • outer layer 322A of multi-layer sheet 322 remains coupled to lower annular band 354 of sheet-support ring 324 establishing removable cover 320 as suggested in Figs. 15 and 20.
  • Inner layer 322C remains coupled to upper annular band 352 and to brim 118 by temporary bond 342T to establish film lid 326 as shown in Figs. 15 and 19.
  • Upper annular band 352 is formed to include a peel-initiation tab 344 as shown in
  • Peel-initiation tab 344 is arranged to extend beyond brim 118 to simplify removal of film lid 326 after delamination and removal of removable cover 320 from container 112. As a result of separating film lid 326 from container 112, package 310 is caused to assume the opened arrangement of package 310 in which access to interior product-storage region 136 is allowed through top aperture 116 as shown in Fig. 16.
  • removable cover 320 may be coupled to brim 118 to establish the closed arrangement as shown in Figs. 17 and 20. In the closed arrangement, removable cover 320 closes top aperture 116 and blocks access to interior product-storage region 136 by dust, dirt, etc.
  • inner layer 322C delaminates from outer layer 322A to expose adhesive layer 322B.
  • Adhesive layer 322B may be used to establish an adhesive bond between removable cover 320 and brim 118. As a result, access to interior product-storage region 136 by water, liquids, air etc. may be blocked or minimized.
  • inner layer 322C includes a peel-initiation zone configured to provide means for causing inner layer 322C to delaminate from a coupling layer in a controlled manner in response to separation of lower annular band 354 of sheet-support ring 324 from brim 118 to cause film lid 326 to be established while maintaining the hermetic seal between film lid 326 and brim 118 so that removable cover 320 is established for covering top aperture 116 after film lid 326 is removed and separated from container 112.
  • peel-initiation zone is an area of weakness in inner layer 322C of multi-layer sheet 322.
  • the area of weakness may be a series of spaced-apart cuts formed in multi-layer sheet 322 and extending through only inner layer 322C.
  • the area of weakness may be a continuous cut formed in multi-layer sheet 322 that extends only through inner layer 322C.
  • peel-initiation zone is formed as a result of inner layer 322C being configured to fracture during removal of lower annular band 354 of sheet- support ring 324 from brim 118 in such a way as to establish film lid 326 that maintains the hermetic seal between brim 118 and film lid 326.
  • a combination of factors may be adjusted to provide for a peel-initiation zone in accordance with the present disclosure. The factors may include the inner layer formulation, adhesive strength of adhesive layer 322B, and the strength of temporary bond 342T formed between inner layer 322C and brim 118.
  • lower annular band 354 included in sheet-support ring 324 includes a support band arranged to extend around brim 118 and a closure-opening tab.
  • Closure-opening tab is appended to support band to extend outwardly beyond a perimeter of support band and is configured to be grasped by a consumer/purchaser/user of package 310 in the field (e.g., home) and simplify application of an opening force to closure 314 to cause package 310 to assume the opened-sealed arrangement.
  • a multi-layer sheet in accordance with the present disclosure may include an inner layer and an outer layer.
  • the inner layer may be arranged to face toward the container and configured to bond temporarily with the brim of the container.
  • the outer layer may be arranged to face away from the container.
  • the multi-layer sheet may further include coupling means for coupling the inner layer to the outer layer to cause the inner layer to be carried with the outer layer during application of the closure to the container in the container-filling factory.
  • the coupling means may be an adhesive layer interconnecting the layers as shown in Fig. 4, a static attraction formed between the layers, a heat bond formed between the layers, or any other suitable alternatives and combinations.
  • the upper layer of the multi-layer sheet may include a portion that is transparent and configured to allow a user to view images, text, or embossing formed on the inner layer.
  • the inner layer may include images, text, or embossing configured to communicate visually to a user that the container is in the closed-sealed arrangement. After the user separates the removable cover from the film lid, removes the film lid from the container, and replaces the removable cover, the images, text, or embossing is no longer visible to the user. Thus, the user understands that the package has been configured in the closed arrangement.
  • a different set of text, images, or embossing may be located on the upper surface of the brim. Once the film lid is removed, the different set of text, images, or embossing is now visible and is configured to communicate visually to a user through the removable cover that the package has been configured in the closed arrangement.
  • the outer layer may be transparent or semi- transparent and tinted with a first color.
  • the inner layer may have a different second color.
  • the combination of the first color and the second color cooperate together to establish a different third color.
  • the presence of the different third color communicates visually to a user that the container is in the closed-sealed
  • the first color is yellow
  • the second color is blue
  • the third color is green.
  • any other suitable combination of colors may be used in accordance with the present disclosure.
  • the addition of text, images, or embossing may also be used.
  • the color change may occur during separation of the outer layer from the inner layer due to fracture of one or both layers.
  • material may change in color to application of stress to the material.
  • a translucent material may turn opaque as a result of stress applied to the material during separation of the outer layer from the inner layer.
  • outer layer comprises one or more materials that do not heat seal to materials included in inner layer.
  • outer layer comprises one or more materials that resist heat sealing to materials included in inner layer. As such, issues of forming a heat seal between outer layer and inner layer are reduced so that inner layer may peel away from outer layer and adhesive layer.
  • outer layer comprises nylon to block the formation of a heat seal between outer layer and inner layer.
  • multi-layer sheet includes a nylon layer (not shown) to block the formation of a heat seal between outer layer and inner layer.
  • a permanent adhesive is printed on an outer portion of adhesive layer 22B where outer layer 22A bonds to sheet-support ring 24 and a pressure sensitive adhesive is used for an inner portion of adhesive layer 22B to couple inner layer 22C to outer layer 22A.
  • adhesive may be printed on outer portion of adhesive layer 22B when used with a registered printing process.
  • a multi-layer sheet includes several layers that cooperate together to establish the outer layer, the coupling layer, and the inner layer.
  • the outer layer is a polyethylene terephthalate (PET)
  • the coupling layer is a pressure sensitive adhesive (PSA)
  • the inner layer is a polypropylene (PP) material suitable for sealing to a polypropylene container.
  • the outer layer may be about 48 gauge PET and be laminated to a high barrier material.
  • the high barrier material includes, for example, a 3.0 mil PP layer, a tie layer, an ethylene vinyl alcohol (EVOH) layer, a tie layer, and a PP layer.
  • the coupling layer may be arranged to locate the barrier layer between the coupling layer and the outer layer and be made from S 8825 PSA available from Avery Dennison.
  • the inner layer may include, for example, a 2.0 mil PP layer, a tie layer, a nylon layer, a tie layer, and a PP layer suitable for sealing to a polypropylene container.
  • the 48 gauge PET film may be laminated to a high barrier, 3.0 mil PP/EVOH/PP coextrusion film.
  • This laminate may be adhesive coated with a low tack pressure sensitive adhesive and laminated to a 2.0 mil PP/nylon/PP peelable seal coextruded film.
  • 8825 PSA*/2.0 mil PP/tie/nylon/tie/PP peelable seal is coupled to a PP sheet-support ring, increased amounts of heat and pressure are applied to fuse the PP-PSA-PP peelable seal layers to form a permanent bond between the multi-layer sheet and the sheet-support ring.
  • the inner layer may be kiss cut between the inside of the sheet-support ring and the outside of the temporary bond to seal the brim of the container. This may allow removal of the removable cover from the container leaving behind the film lid coupled to the container to provide evidence of tampering.
  • each of an inner layer, an outer layer, and a coupling layer included in a multi-layer sheet may comprise one or more layers.
  • the outer layer is a PET
  • the coupling layer 22B includes an adhesive layer 22B 1 and a release coating 22B2
  • the inner layer is a PP material suitable for sealing to a PP container as suggested in Fig. 4.
  • the outer layer may be about 92 gauge PET.
  • the outer layer may be reverse printed with registered printing of ink and a release coating.
  • the release coating a lacquer coating WKVFS0115713 provided by Sun Chemical. The reverse printed outer layer with release coating is then coupled to a barrier layer and the inner layer by the adhesive layer.
  • the adhesive layer is a urethane adhesive system, for example, Morfree L75-164/Morfree C 411.
  • the barrier layer in one example includes about a 3.0 mil PP layer, a tie layer, an EVOH layer, and a tie layer.
  • the inner layer in another example is a PP layer suitable for sealing to a container. The barrier layer and inner layer may be kiss cut in register to the release coating which allows removal of the removable cover while leaving behind the film lid coupled to the container.
  • each of an inner layer, an outer layer, and a coupling layer included in a multi-layer sheet may comprise one or more layers.
  • the outer layer is a PET
  • the coupling layer includes a wax material
  • the inner layer is a PP material suitable for sealing to a PP container.
  • the outer layer includes about a 48 gauge PET layer, a 1.5 mil nylon layer, a tie layer, and a PP layer.
  • the 48 gauge PET layer may be adhesively laminated to the 1.5 mil nylon layer, tie layer, and PP layer. This combination of layers may then be bonded permanently to a sheet-support ring to form the removable cover.
  • the wax material is then coated on an inner surface of the removable cover. In one example, the wax material is 5 G wax from Hase Petroleum.
  • the inner layer includes, for example, a 1.5 mil nylon layer, a tie layer, and a PP layer suitable for sealing to a PP container. The inner layer may be die cut from a larger sheet and inserted into the removable cover to establish the closure.
  • the HP 5G wax has adequate tack to couple and hold the inner layer in place inside relative to the removable cover. After the closure has been bonded temporarily to the container, the film lid remains bonded temporarily to the container upon removal of the removable cover.
  • the low tack of the HP 5G wax provides easy separation of the film lid from the removable cover. Low tack pressure sensitive adhesives can also be used in place of the HP 5G wax.
  • a multi-layer sheet is made from a laminate which includes, for example, a protective layer (also called outer layer), a skin layer, an adhesive layer (also called coupling layer), and a sealant layer (also called inner layer).
  • the adhesive layer has a relatively high melt Mass-Flow Rate (MFR) and the sealant layer comprises a polypropylene
  • a multi-layer sheet includes a protective layer (also called outer layer), a skin layer, a barrier layer, an adhesive layer (also called coupling layer), and a sealant layer (also called inner layer).
  • the protective layer is made from Polyethylene Terephthalate (PET).
  • PET Polyethylene Terephthalate
  • OPP Oriented Polypropylene
  • BON Bi-axially Oriented Nylon
  • the protective layer may include two or more sub-layers where a first sub-layer is one of PET, OPP, and BON and the second sub-layer is ink printed on an inner surface of the first sub-layer so that the ink sub-layer is located between the first sub-layer and the skin layer. Once the protective layer is formed, the protective layer may be laminated to the skin layer in any suitable manner.
  • the skin layer is made from Low Density
  • the skin layer is made from LDPE having a melt index of about 6 g/10 min as tested according to ASTM Test Method D 1238.
  • the skin layer is made from PETROTHENE® NA334000 LDPE made by Lyondell Chemical Company of Houston, Texas.
  • the skin layer is made from a Linear Low Density
  • the skin layer is made from DOWLEXTM 2035 LLDPE made by DOW® Chemical Company.
  • the skin layer is made from a hexene copolymer LMDPE.
  • the skin layer is made from NOVAPOL® TF-0438-E LMDPE made by NOVA Chemicals® of Moon Township, Pennsylvania.
  • the skin layer is made from a blend of LLDPE and hexene copolymer LMDPE.
  • the blend is about 20 % by weight (wt ) LLDPE and 80 wt hexene copolymer LMDPE.
  • the blend is about 80 wt LLDPE and about 20 wt% hexene copolymer LLDPE.
  • the LLDPE may be DOWLEXTM 2035 LDPE made by DOW® Chemical Company and the hexene copolymer LMDPE may be NOVAPOL® TF-0438-E LMDPE made by NOVA Chemicals® of Moon Township, Pennsylvania.
  • the skin layer is made from a blend of LDPE and Linear Low Density Polyethylene (LLDPE).
  • LLDPE Linear Low Density Polyethylene
  • the skin layer is made from about 50 wt% PETROTHENE® NA334000 LDPE and about 50 wt% DOWLEXTM 2035 LLDPE made by The DOW® Chemical Company.
  • the skin layer is made from a blend of about 60 wt% NOVAPOL® TF-0438-E hexene LMDPE made by NOVA Chemicals® of Moon
  • the skin layer is made from a blend of LDPE and Medium Density Polyethylene (MDPE). In yet another example, the skin layer is made from High Density Polyethylene (HDPE). In still yet another example, the skin layer is made from a blend of LLDPE and MDPE. In another example, the skin layer is made from a blend of LLDPE and HDPE. In yet another example, the skin layer is made from Polypropylene (PP).
  • MDPE Medium Density Polyethylene
  • HDPE High Density Polyethylene
  • PP Polypropylene
  • the adhesive layer is a Pressure Sensitive Adhesive (PSA).
  • PSA Pressure Sensitive Adhesive
  • the PSA may have a relatively high melt Mass-Flow Rate (MFR) (190 °C / 2.16 kg) as measured by NF EN ISO 1113, cond 6, which is hereby incorporated by reference in its entirety.
  • MFR Mass-Flow Rate
  • the PSA has a melt MFR (190 °C / 2.16 kg) in a range of about 5 g/10 min to about 50 g/10 min.
  • the PSA has a melt MFR (190 °C / 2.16 kg) in a range of about 8 g/10 min to about 45 g/10 min.
  • the PSA has a melt MFR (190 °C / 2.16 kg) of about 8 g/10 min. In another example, the PSA has a melt MFR (190 °C / 2.16 kg) of about 45 g/10 min.
  • the adhesive layer is made from BOSTIK® M3156/T adhesive made by Bostik Limited of Staffordshire, UK.
  • the adhesive layer is made from BOSTIK® M651 PSA made by Bostik Limited of Staffordshire, UK.
  • the adhesive layer is made from BOSTIK® M951/5 adhesive made by Bostik Limited of Staffordshire, UK.
  • the adhesive layer is made from a blend of about 50 wt% M651 and about 50 wt% BOSTIK® M3156/T.
  • the sealant layer is made from Polypropylene (PP).
  • the sealant layer is made from homopolymer PP.
  • the sealant layer is made from random PP.
  • the sealant layer is made from random or homopolymer PP having a melt flow rate of about 12 g/10 min to about 40 g/10 min.
  • the sealant layer is made from random or homopolymer PP having a melt flow rate of about 14 g/10 min to about 36 g/10 min.
  • the sealant layer is made from TOTAL® Petrochemicals Polypropylene M3661 made by Total
  • the sealant layer is made from
  • the sealant layer is made from a blend of PP and a polypropylene-based elastomer.
  • the addition of the polypropylene-based elastomer maximizes peel consistency by minimizing formation of stringers during peeling the film lid away from the container.
  • a stringer is a portion of the sealant layer which delaminates in an area other than the heat seal. In one example, the stringer remains coupled to the container providing an unattractive appearance.
  • the blend of PP and the polypropylene-based elastomer provide a clean break or separation from the PSA during peeling film lid away from the container.
  • Elastomers are substantially amorphous polymers existing above a glass transition temperature at ambient conditions.
  • a polypropylene-based elastomer in accordance with the present disclosure is VISTAMAXXTM 3020FL made by
  • VISTAMAXXTM 3020FL is an olefinic elastomer primarily composed of isotactic propylene repeat units with random ethylene distribution.
  • the polypropylene -based elastomer has a density of about 0.87 g/cm 3 . In another example, the polypropylene -based elastomer has a density of about 0.873 g/cm 3 . In another example, the polypropylene -based elastomer has a density of about 0.874 g/cm 3 . Density may be measured according to ASTM D1505 which is hereby incorporated by reference herein in its entirety.
  • the polypropylene-based elastomer has a melt index at 190°C/2.16kg of about 1.1 g/10 min.
  • the polypropylene -based elastomer has a melt Mass-Flow Rate (MFR) of about 2.0 g/10 min.
  • the polypropylene-based elastomer has a flexural modulus (1% secant) in a range of about 8600 psi to about 8700 psi as measured according to ASTM D790 which is hereby incorporated by reference in its entirety.
  • the polypropylene-based elastomer has a flexural modulus (1% secant) of about 8,650 psi.
  • the polypropylene-based elastomer has a flexural modulus (1% secant) of about 8,700 psi.
  • the polypropylene-based elastomer has a tensile elongation in a range of about 45% to about 48% at yield according to ASTM D412 which is hereby incorporated by reference in its entirety. In one example, the polypropylene-based elastomer has a tensile elongation of about 46% at yield. In another example, the polypropylene -based elastomer has a tensile elongation of about 48% at yield. The polypropylene-based elastomer has a tensile elongation of about 1 ,800% at break.
  • the PP may be a low molecular weight polypropylene.
  • the PP May be polypropylene homopolymer.
  • a polypropylene homopolymer in accordance with the present disclosure is EXXONMOBILTM PP3155 made by EXXONMOBILTM Chemical Company of Houston, Texas.
  • the polypropylene homopolymer may have a relatively high melt Mass-Flow Rate (MFR) (230 °C / 2.16 kg) as measured by ASTM D1238 which is hereby incorporated by reference in its entirety.
  • MFR Mass-Flow Rate
  • the polypropylene homopolymer has a melt MFR (230 °C / 2.16 kg) in a range of about 10 g/10 min to about 50 g/10 min.
  • the polypropylene homopolymer has a melt MFR (230 °C / 2.16 kg) in a range of about 30 g/10 min to about 40 g/10 min.
  • the polypropylene homopolymer has a melt MFR (230 °C / 2.16 kg) of about 36 g/10 min.
  • the polypropylene homopolymer having a relatively high melt MFR provides for improved processing during formation of the multi-layer peelable closure laminate.
  • the blend of PP homopolymer and polypropylene-based elastomer is next to and adjacent the PSA.
  • the relatively high melt MFR of the polypropylene homopolymer provides for a viscosity during extrusion which is similar to the viscosity of the PSA. As a result, interfacial instability between the sealant layer and the adhesive layer is minimized.
  • Elastomers are typically amorphous polymers existing above a glass transition temperature at ambient conditions.
  • a polypropylene-based elastomer in accordance with the present disclosure is VISTAMAXXTM 3020FL made by EXXONMOBILTM Chemical Company of Houston, Texas.
  • VISTAMAXXTM 3020FL is an olefinic elastomer primarily composed of isotactic propylene repeat units with random ethylene distribution.
  • the sealant layer may be about 60 wt PP and about 40 wt polypropylene-based elastomer.
  • the sealant layer is a blend of about 60 wt% EXXONMOBILTM PP3155 and about 40 wt%
  • the sealant layer is a blend of about 60 wt% EXXONMOBILTM PP3155, about 30 wt% VISTAMAXXTM 3020FL made by
  • the sealant layer is a blend of at least 50 wt% EXXONMOBILTM PP3155 made by EXXONMOBILTM Chemical Company of Houston, Texas and any other suitable resin.
  • the skin layer has a skin thickness
  • the adhesive layer has an adhesive thickness
  • the sealant layer has a sealant thickness. Together, the skin thickness, the adhesive thickness, and the sealant thickness cooperate to establish an overall thickness.
  • the skin thickness is about 55% to about 60% of the overall thickness. In another example, the skin thickness is about 55% of the overall thickness. In yet another example, the skin thickness is about 60% of the overall thickness. In still yet another example, the skin thickness is about 58% of the overall thickness.
  • the adhesive thickness is about 26% to about 30% of the overall thickness. In another example, the adhesive thickness is about 26% of the overall thickness. In yet another example, the adhesive thickness is about 30% of the overall thickness. In still yet another example, the adhesive thickness is about 27% of the overall thickness.
  • the sealant thickness is about 14% to about 15% of the overall thickness. In another example, the sealant thickness is about 14% of the overall thickness. In yet another example, the sealant thickness is about 15% of the overall thickness.
  • the multi-layer sheet may include a barrier layer.
  • the barrier layer may include several sub-layers.
  • the barrier layer includes a first tie sublayer, a sub-layer made from a material including Ethylene Vinyl Alcohol (EVOH), and a second tie sub-layer.
  • the EVOH is configured to maximize resistance to oxygen and moisture vapor moving through the closure between the product- storage region and an environment surrounding the package.
  • the first tie sub-layer is located between the sub-layer including EVOH and the skin layer.
  • the second tie sub-layer is located between the sub-layer including EVOH and the adhesive layer.
  • the sub-layer including EVOH is made from 100 wt% EVALTM J171 made by EVAL Europe nv of Antwerp, Belgium. In another example, the sub-layer including EVOH is made from 100 wt% SOARNOLTM DC3203F made by Nippon Gohsei of Osaka, Japan.
  • the first tie layer is configured to be compatible between the sub-layer including EVOH and the skin layer.
  • the first tie sub-layer includes, for example, about 85 wt% PETROTHENE® NA334000 LDPE and about 15 wt% DUPONTTM BYNEL® 41E710.
  • the second tie layer is configured to be compatible between the sub-layer including EVOH and the adhesive layer.
  • the second tie sub-layer includes, for example, about 47 wt% NOVAPOL® TF-0338-E Linear Medium Density Polyethylene (LMDPE), 38% DOWLEXTM 2035 LLDPE, and about 15 wt% DUPONTTM BYNEL® 41E710 anhydride- modified, LLDPE made by DuPont Company of Wilmington, Delaware.
  • LLDPE Linear Medium Density Polyethylene
  • DOWLEXTM 2035 LLDPE 38% DOWLEXTM 2035 LLDPE
  • DUPONTTM BYNEL® 41E710 anhydride- modified, LLDPE made by DuPont Company of Wilmington, Delaware.
  • any other suitable formulations of the tie layers may be used.
  • the barrier layer may be Polyvinylidene Chloride (PVdC) coating applied to one of the other layers included in the multi-layer sheet.
  • PVdC coating is applied to the protective layer.
  • the PVdC coating is applied to the skin layer when no protective layer is present. While EVOH and PVdC may be used as suitable barrier materials, any other suitable barrier materials may be used.
  • the multi-layer sheet may have one or more layers between the seal layer and the adhesive layer. These layers can be made of similar or dissimilar materials and may or may not contain functional additives such as anti-fog, odor absorbers, anti-oxidants, etc.
  • the present disclosure relates to multi-layer sheets which include 100 wt polypropylene (homopolymer or copolymer or random copolymer polypropylene) or a blend of polypropylene and elastomer sealant (sealant layer), a pressure sensitive adhesive core (adhesive layer) and a polyolefin skin layer (skin layer).
  • the multi-layer sheet has an easy to open feature (easy-to-peel) and when peeled, the polypropylene seal layer (sealant layer) breaks away from the pressure sensitive adhesive layer (adhesive layer) due to bond failure between the film- support structure and the sealant layer.
  • This co-extruded film can be laminated to PET, BON, or Oriented Polypropylene (OPP) films to increase stiffness and temperature resistance.
  • OPP Oriented Polypropylene
  • a film containing EVOH or a PVdC coating can be also laminated to improve the barrier resistance to oxygen or moisture vapor of the closure.
  • a package comprising [00135] a container including a bowl formed to include a product- storage region therein and a brim coupled to the bowl and formed to include a top aperture arranged to open into the product-storage region,
  • a closure including a sheet-support ring coupled to the brim and a multi-layer sheet coupled permanently to the sheet-support ring by a permanent bond and coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless hermetic seal to be established between the brim and the multi-layer sheet, the multi-layer sheet being configured to provide means for communicating visually to a user that the closure has been separated from the container previously in response to separation of the closure from the container.
  • a container including a bowl formed to include a product- storage region therein and a brim coupled to the bowl and formed to include a top aperture arranged to open into the product-storage region,
  • a closure including a sheet-support ring coupled to the brim and a multi-layer sheet including an outer layer coupled permanently to the sheet- support ring by a first permanent bond, an inner layer coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless seal to be established between the brim and the inner layer of the multi-layer sheet, and a coupling layer located between the inner and outer layers and configured to provide means for communicating visually to a user that the closure has been separated previously from the container by a user.
  • a container including a bowl formed to include a product- storage region therein and a brim coupled to the bowl and formed to include a top aperture arranged to open into the product-storage region,
  • a closure including a sheet-support ring coupled to the brim and a multi-layer sheet coupled permanently to the sheet-support ring by a permanent bond and coupled temporarily to an upwardly facing surface of the brim by a temporary bond to cause an endless hermetic seal to be established between the brim and the multi-layer sheet, the sheet-support ring being configured to provide means for communicating visually to a user that the closure has been separated from the container previously in response to separation of the closure from the container.
  • the multi-layer sheet includes an outer layer located in spaced-apart relation to the upwardly facing surface of the brim, an inner layer located in spaced-apart relation to the outer layer and located between the outer layer and the upwardly facing surface of the brim, and a coupling layer located between the inner layer and the outer layer.
  • the outer layer includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of the outer layer when the package is in a closed-sealed arrangement in which the sheet-support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond
  • the portion of the outer layer that is generally transparent to light is further configured to communicate different second visual information through the portion of the outer layer when the package is in an opened arrangement in which the temporary bond between the inner layer and the container has been broken and a portion of the inner layer has been removed from the closure to establish a removable cover and the removable cover is coupled to the container
  • the coupling layer includes a portion that is transparent to light and configured to communicate visual information through the portion of the coupling layer.
  • the coupling layer includes an adhesive layer located between the inner layer and the outer layer and a release coating coupled to a portion of the adhesive layer, the adhesive layer is a permanent adhesive, and the adhesive layer includes a first portion located between the outer layer and the sheet-support ring and configured to provide a first permanent bond between the outer layer and the sheet- support ring and a second portion surrounded by the first portion and the release coating is applied only to the second portion.
  • the inner layer includes an inner portion, an outer portion located in spaced-apart relation to the inner portion, and a peel-initiation zone located between the inner portion and the outer portion, the peel-initiation zone is configured to provide means for causing the inner portion of the inner layer to delaminate in a controlled manner from the coupling layer in response to separation of the sheet-support ring from the brim to cause a film lid to be established while maintaining the endless hermetic seal between the film lid and the brim so that a removable cover is established for covering the top aperture after the film lid is removed and separated from the container, and the film lid is a portion of the inner layer of the multi-layer sheet that has delaminated from the multi-layer sheet in a controlled manner during formation of the film lid and the removable cover.
  • Clause 8 The package of any other clause or combination of clauses, wherein the multi-layer sheet includes an outer layer coupled permanently to the sheet-support ring by a first permanent bond, an inner layer coupled temporarily to the upwardly facing surface of the brim by the temporary bond to cause an endless seal to be established between the brim and the inner layer of the multi-layer sheet, and a coupling layer located between the inner and outer layers and configured to provide means for communicating visually to a user that the closure has been separated previously from the container by a user.
  • the multi-layer sheet includes an outer layer located in spaced-apart relation to the upwardly facing surface of the brim, an inner layer located in spaced-apart relation to the outer layer and located between the outer layer and the upwardly facing surface of the brim, and a coupling layer located between the inner layer and the outer layer
  • the film lid is a portion of the inner layer of the multi-layer sheet that has delaminated from the multi-layer sheet in a controlled manner during formation of the film lid and removable cover
  • the package is in an opened arrangement when a second force is applied to the film lid to cause the temporary bond to be overcome and the film lid to be peeled away from brim of the container and removable cover is coupled to brim to block access to the top aperture by a remaining portion of the multilayer sheet included in the removable cover
  • the removable cover is coupled to the upwardly facing surface of the brim by a downwardly facing surface of the coupling layer exposed during delamination of the film
  • Clause 13 The package of any other clause or combination of clauses, wherein the coupling layer includes an adhesive layer located between the inner layer and the outer layer and a release coating coupled to a portion of the adhesive layer.
  • Clause 14 The package of any other clause or combination of clauses, wherein the adhesive layer is a permanent adhesive.
  • Clause 15 The package of any other clause or combination of clauses, wherein the adhesive layer includes a first portion located between the outer layer and the sheet- support ring and configured to provide the first permanent bond between the outer layer and the sheet-support ring and a second portion surrounded by the first portion.
  • Clause 16 The package of any other clause or combination of clauses, wherein the sheet-support ring includes an upper annular band, a lower annular band located in spaced-apart relationship to the upper annular band and, and a series of frangible connectors arranged to extend between and interconnect the upper and lower annular bands to cause the lower annular band to separate and move away from the upper annular band in response to application of a cover-removal force to the lower annular band.
  • Clause 20 The package of any other clause or combination of clauses, wherein the multi-layer sheet includes an outer layer located in spaced-apart relation to the upwardly facing surface of the brim and an inner layer located between the outer layer and the upwardly facing surface of the brim, the removable cover includes the lower annular band and the outer layer of the multi-layer sheet, and the film lid includes the upper annular band and the inner layer of the multi-layer sheet.21. (Figs. 1-13) The package of claim 2, wherein the coupling layer is an adhesive layer.
  • Clause 21 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of the outer layer when the package is in a closed-sealed arrangement in which the sheet-support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond.
  • Clause 22 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of the outer layer when the package is in a closed-sealed arrangement and is further configured to communicate second visual information through the portion of the outer layer when the package is in an opened arrangement and the coupling layer includes a portion that is transparent to light and configured to allow a user to view visual information through the portion of the coupling layer.
  • Clause 23 The package of any other clause or combination of clauses, wherein the first visual information is one of an image, text, embossing, or a color and is included in the inner layer.
  • Clause 24 The package of any other clause or combination of clauses, wherein the second visual information is one of an image, text, embossing, or a color, the second visual information is different than the first visual information, and the second visual information is included in the brim of the container.
  • Clause 25 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of the outer layer when the package is in a closed-sealed arrangement in which the sheet-support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond.
  • Clause 26 The package of any other clause or combination of clauses, wherein the portion of the outer layer that is generally transparent to light is further configured to communicate second visual information through the portion of the outer layer when the package is in an opened arrangement in which the temporary bond between the inner layer and the container has been broken and a portion of the inner layer has been removed from the closure to establish a removable cover and the removable cover is coupled to the container.
  • Clause 27 The package of any other clause or combination of clauses, wherein the coupling layer includes a portion that is transparent to light and configured to allow a user to view visual information through the portion of the coupling layer.
  • Clause 28 The package of any other clause or combination of clauses, wherein the first visual information is one of an image, text, embossing, or a color.
  • Clause 29 The package of any other clause or combination of clauses, wherein the first visual information is included in the inner layer.
  • Clause 30 The package of any other clause or combination of clauses, wherein the second visual information is one of an image, text, embossing, or a color and the second visual information is different than the first visual information.
  • Clause 32 The package of any other clause or combination of clauses, wherein the inner layer includes a portion that blocks light from passing therethrough so that the second visual information is blocked from viewing when the package is in the closed-sealed arrangement.
  • Clause 33 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that has a first color configured to communicate first visual information when the package is in a closed-sealed arrangement in which the sheet- support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond.
  • Clause 34 The package of any other clause or combination of clauses, wherein the portion of the outer layer has a different second color configured to communicate second visual information when the package is in an opened arrangement in which the temporary bond between the inner layer and the container has been broken and a portion of the inner layer has been removed from the closure to establish a removable cover which is coupled to the container.
  • Clause 35 The package of any other clause or combination of clauses, wherein the coupling layer includes a portion that is transparent to light and the portion of the coupling layer is aligned with the portion of the outer layer.
  • Clause 37 The package of any other clause or combination of clauses, wherein the removable layer is coupled to the brim, in part, by an adhesive bond formed between the coupling layer and the brim.
  • Clause 38 The package of any other clause or combination of clauses, wherein the multi-layer sheet includes an outer layer located in spaced-apart relation to the upwardly facing surface of the brim, an inner layer located in spaced-apart relation to the outer layer and located between the outer layer and the upwardly facing surface of the brim, and a coupling layer located between the inner layer and the outer layer and the inner layer includes an inner portion, an outer portion located in spaced-apart relation to the outer portion, and a peel- initiation zone located between the inner portion and the outer portion.
  • Clause 40 The package of any other clause or combination of clauses, wherein the peel-initiation zone is an area of weakness formed in the inner layer between the outer portion of the inner layer and the inner portion of the inner layer.
  • Clause 41 The package of any other clause or combination of clauses, wherein the area of weakness is a series of spaced-apart cuts formed in the inner layer of the multi-layer sheet and arranged to extend only through the inner layer.
  • Clause 44 The package of any other clause or combination of clauses, wherein the inner portion of the inner layer is spaced apart from the outer portion of the inner layer to locate the cut between the inner and outer portions.
  • Clause 45 The package of any other clause or combination of clauses, wherein the sheet-support ring includes a support band arranged to extend around the brim of the container and a closure opening tab coupled to the sheet-support ring and arranged to extend outwardly away from the top aperture.
  • Clause 46 The package of any other clause or combination of clauses, wherein the multi-layer sheet includes a body arranged to cover and close the top aperture when the closure is coupled to the container and a peel-initiation tab appended to the body and arranged to extend away from the body and past a perimeter edge of the brim.
  • Clause 47 The package of any other clause or combination of clauses, wherein the multi-layer sheet includes an outer layer located in spaced-apart relation to the container when the closure is coupled to the container and an inner layer coupled to the outer layer and to the brim of the container.
  • Clause 48 The package of any other clause or combination of clauses, wherein the multi-layer sheet further includes a coupling layer located between the inner layer and the outer layer and arranged to extend between and interconnect the inner and outer layers.
  • Clause 49 The package of any other clause or combination of clauses, wherein the inner layer is coupled to the outer layer by static attraction formed between the inner and outer layers.
  • Clause 50 The package of any other clause or combination of clauses, wherein the inner layer is coupled to the outer layer by a heat bond formed between the inner and outer layers.
  • Clause 51 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that is generally transparent to light and configured to communicate first visual information through the portion of the outer layer when the package is in a closed-sealed arrangement in which the sheet-support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond.
  • Clause 53 The package of any other clause or combination of clauses, wherein the first visual information is one of an image, text, embossing, or a color.
  • Clause 54 The package of any other clause or combination of clauses, wherein the first visual information is included in the inner layer.
  • Clause 55 The package of any other clause or combination of clauses, wherein the second visual information is one of an image, text, embossing, or a color and the second visual information is different than the first visual information.
  • Clause 56 The package of any other clause or combination of clauses, wherein the second visual information is included in the brim of the container.
  • Clause 58 The package of any other clause or combination of clauses, wherein the outer layer includes a portion that has a first color configured to communicate first visual information when the package is in a closed-sealed arrangement in which the sheet- support ring is coupled to the brim of the container and the multi-layer sheet is coupled temporarily to the brim by the temporary bond.
  • Clause 59 The package of any other clause or combination of clauses, wherein the portion of the outer layer has a different second color configured to communicate second visual information when the package is in an opened arrangement in which the temporary bond between the inner layer and the container has been broken and a portion of the inner layer has been removed from the closure to establish a removable cover which is coupled to the container.
  • Clause 60 The package of any other clause or combination of clauses, wherein the film lid is a portion of the inner layer of the multi-layer sheet that has delaminated from the multi-layer sheet in a controlled manner during formation of the film lid and the removable cover and the removable cover is coupled to the upwardly facing surface of the brim by a downwardly facing surface of the adhesive layer exposed during delamination of the film lid from the removable cover.
  • Clause 61 The package of any other clause or combination of clauses, wherein the inner layer includes an inner portion, an outer portion located in spaced-apart relation to the outer portion, and a peel-initiation zone located between the inner portion and the outer portion, the peel-initiation zone is an area of weakness formed in the inner layer between the outer portion and the inner portion of the inner layer, and the area of weakness is a cut formed in the inner layer of the multi-layer sheet and arranged to extend only through the inner layer.
  • Clause 62 The package of any other clause or combination of clauses, wherein the endless seal is a hermetic seal is configured to withstand changes in temperature and pressure in the product-storage region.
  • Clause 64 The package of any other clause or combination of clauses, wherein the coupling layer includes an adhesive layer located between the inner layer and the outer layer and a release coating coupled to a portion of the adhesive layer, the adhesive layer is a permanent adhesive, and the adhesive layer includes a first portion located between the outer layer and the sheet-support ring and configured to provide the first permanent bond between the outer layer and the sheet- support ring and a second portion surrounded by the first portion and the release coating is applied only to the second portion.
  • Clause 65 The package of any other clause or combination of clauses, wherein the inner layer is coupled to the second portion of the adhesive layer and the release coating is located between the inner layer and the second portion of the adhesive layer.
  • Clause 66 The package of any other clause or combination of clauses, wherein a portion of the inner layer is arranged to extend beyond a perimeter of the second portion toward the sheet support ring.
  • Clause 68 The package of any other clause or combination of clauses, wherein the coupling layer is a pressure sensitive adhesive.
  • Clause 70 The package of any other clause or combination of clauses, wherein the inner layer is arranged to extend beyond the perimeter edge of the coupling layer.
  • Clause 71 The package of any other clause or combination of clauses, wherein the first permanent bond is spaced apart from the second permanent bond.
  • Clause 72 The package of any other clause or combination of clauses, wherein a perimeter edge of the inner sheet is located between the upper annular band and the lower annular band.
  • Clause 74 The package of any other clause or combination of clauses, wherein the film lid includes the inner layer and the upper annular band.
  • Clause 75 The package of any other clause or combination of clauses, wherein the package is in an opened arrangement when a lid-removal force is applied to the film lid to cause the temporary bond to be overcome and the film lid to be peeled away from the brim of the container and the removable cover is coupled to the brim to block access to the top aperture by the upper layer of included in the removable cover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)

Abstract

Un emballage comprend une fermeture conçue pour s'accoupler avec un bord d'un contenant de manière à fermer une ouverture donnant dans une région intérieure de stockage de produit formée dans ledit contenant. Selon la présente invention, un emballage comprend une fermeture conçue pour s'accoupler avec un bord d'un contenant de manière à fermer une ouverture donnant dans une région intérieure de stockage de produit formée dans ledit contenant.
PCT/US2015/055372 2014-10-14 2015-10-13 Fermeture de contenant WO2016061127A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201462063714P 2014-10-14 2014-10-14
US62/063,714 2014-10-14

Publications (1)

Publication Number Publication Date
WO2016061127A1 true WO2016061127A1 (fr) 2016-04-21

Family

ID=55654953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/055372 WO2016061127A1 (fr) 2014-10-14 2015-10-13 Fermeture de contenant

Country Status (2)

Country Link
US (1) US20160101908A1 (fr)
WO (1) WO2016061127A1 (fr)

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USD840684S1 (en) 2017-03-23 2019-02-19 Bway Corporation Container
US10155609B2 (en) 2017-03-23 2018-12-18 Bway Corporation Tamper evident tub
US11453534B2 (en) 2017-03-23 2022-09-27 Bway Corporation Tamper evident tub
USD834935S1 (en) * 2017-03-23 2018-12-04 Bway Corporation Container with handle
USD963194S1 (en) * 2020-12-09 2022-09-06 TMRW Life Sciences, Inc. Cryogenic vial carrier
WO2022125817A1 (fr) 2020-12-10 2022-06-16 TMRW Life Sciences, Inc. Porte-échantillon doté d'un transpondeur sans fil pour fixation à un corps de collecte d'échantillon

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US3561668A (en) * 1966-08-23 1971-02-09 Anderson Bros Mfg Co Sealed package
US3792893A (en) * 1972-03-27 1974-02-19 Atlanta Grotnes Machine Co Removable container cover and retainer
US4876123A (en) * 1988-06-27 1989-10-24 Minnesota Mining And Manufacturing Company Tamper indicating tape and delaminating film therefore
US5197618A (en) * 1991-10-15 1993-03-30 Top Seal, Inc. Tamper-evident fusion bonded pull-tab induction foil lining system for container closures
US6056141A (en) * 1997-12-18 2000-05-02 Safta S.P.A. Reclosable packing system
US6790508B2 (en) * 2001-12-07 2004-09-14 Bp Europack S.P.A. Multiple film sheet for containers with peel-off lids
US20040195255A1 (en) * 1997-03-18 2004-10-07 The Glad Products Company Sealing container
US20100303391A9 (en) * 2006-05-23 2010-12-02 Carole Anne Cole Package integrity indicator for container closure
US20120199599A1 (en) * 2011-02-07 2012-08-09 Berry Plastics Corporation Package with lid sealing system
US20130047559A1 (en) * 2011-02-07 2013-02-28 Berry Plastics Corporation Package with lid sealing system
US20150048089A1 (en) * 2013-08-13 2015-02-19 Huhtamaki, Inc. Container Lid with Plastic Ring and Method of Manufacture

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US4747500A (en) * 1985-01-22 1988-05-31 Sunbeam Plastics Corporation Tamper indicating transparent closure
WO2001044058A2 (fr) * 1999-12-14 2001-06-21 Double 'h' Plastics, Inc. Couvercle de recipient articule gerbable a ergots

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Publication number Priority date Publication date Assignee Title
US3561668A (en) * 1966-08-23 1971-02-09 Anderson Bros Mfg Co Sealed package
US3792893A (en) * 1972-03-27 1974-02-19 Atlanta Grotnes Machine Co Removable container cover and retainer
US4876123A (en) * 1988-06-27 1989-10-24 Minnesota Mining And Manufacturing Company Tamper indicating tape and delaminating film therefore
US5197618A (en) * 1991-10-15 1993-03-30 Top Seal, Inc. Tamper-evident fusion bonded pull-tab induction foil lining system for container closures
US20040195255A1 (en) * 1997-03-18 2004-10-07 The Glad Products Company Sealing container
US6056141A (en) * 1997-12-18 2000-05-02 Safta S.P.A. Reclosable packing system
US6790508B2 (en) * 2001-12-07 2004-09-14 Bp Europack S.P.A. Multiple film sheet for containers with peel-off lids
US20100303391A9 (en) * 2006-05-23 2010-12-02 Carole Anne Cole Package integrity indicator for container closure
US20120199599A1 (en) * 2011-02-07 2012-08-09 Berry Plastics Corporation Package with lid sealing system
US20130047559A1 (en) * 2011-02-07 2013-02-28 Berry Plastics Corporation Package with lid sealing system
US20150048089A1 (en) * 2013-08-13 2015-02-19 Huhtamaki, Inc. Container Lid with Plastic Ring and Method of Manufacture

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