EP1061000A2 - Einteiliger Behälterdeckel - Google Patents

Einteiliger Behälterdeckel Download PDF

Info

Publication number
EP1061000A2
EP1061000A2 EP00304974A EP00304974A EP1061000A2 EP 1061000 A2 EP1061000 A2 EP 1061000A2 EP 00304974 A EP00304974 A EP 00304974A EP 00304974 A EP00304974 A EP 00304974A EP 1061000 A2 EP1061000 A2 EP 1061000A2
Authority
EP
European Patent Office
Prior art keywords
lid
receptacle
sealing portion
composition
sealing
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.)
Withdrawn
Application number
EP00304974A
Other languages
English (en)
French (fr)
Other versions
EP1061000A3 (de
Inventor
Richard Merrick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever Bestfoods North America
Original Assignee
Unilever Bestfoods North America
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 Unilever Bestfoods North America filed Critical Unilever Bestfoods North America
Publication of EP1061000A2 publication Critical patent/EP1061000A2/de
Publication of EP1061000A3 publication Critical patent/EP1061000A3/de
Withdrawn legal-status Critical Current

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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
    • B65D41/0442—Collars or rings

Definitions

  • This invention relates to a lid for a receptacle, to a process for its production and to a container for a foodstuff which comprises the lid and a receptacle.
  • a seal between the lid and the receptacle, which is generally hermetic (i.e., substantially or completely airtight).
  • a hermetic seal can be difficult to achieve using a lid without an inserted wadding or liner when the receptacle is made from glass or from plastics materials formed into their final shape by a process incorporating a plastics extrusion stage and an injection moulding stage.
  • sealing media into the lid takes place after the lid has been formed, either by simply physically positioning a wad of deformable material in the lid or by injection moulding two plastics materials in a single operation into a single injection moulding cavity; one material being used to produce the load bearing cap and a further deformable material being injected into the sealing surface to form an integral deformable lining to mate with the sealing surface on the receptacle thus providing a seal.
  • the number of steps for producing the lid is increased by the inclusion of a wad or lining and, because the wad or lining and the lid have different chemical compositions, the overall lid (i.e., the lid plus the wad or lining) cannot be recycled easily without an expensive separation operation.
  • the lining composition is softened, typically by heating the lid externally with steam, such that it flows or deforms to take up the surface roughness between the opposing surfaces of the lid and the receptacle to provide an effective seat between them. As it is tightened the softenable or deformable lining composition helps maintain torque.
  • the present invention relates to a lid formed of a single material which alleviates the problems of backing off and hermetic sealing whilst at the same time being recyclable.
  • the lid of the invention has the further advantage of being capable of being formed in a single injection moulding process and, therefore, the process for its production is as simple as the process for producing a basic lid without a wad.
  • a lid for a receptacle which lid includes a sealing portion which, in use, is capable of forming a hermetic seal between the lid and an opening on the receptacle, wherein the lid and the sealing portion thereof are formed from the same polymer composition and wherein the sealing portion comprises the composition in the form of one or more foamed sections and wherein, in use, the one or more foamed sections are capable of coming into direct contact with the opening and/or a sealing surface of the receptacle.
  • Forming the sealing portion as an integral part of the lid simplifies the process for producing a lid with a seal. Also, forming the lid as a onepiece article from a single polymer composition means that the lid can be readily recycled or recovered.
  • the sealing portion of the lid which comprises the same polymer composition as the non-sealing portion of the lid comprises a foamed section which, in use, takes up surface imperfections (for example by being resiliently deformable) like a wad as used in the prior art and maintains torque.
  • the sealing portion of the lid is positioned around all or part of an edge region of the lid, for example in an annular manner.
  • the sealing portion is adapted to compress against a specific sealing surface on the receptacle.
  • the sealing portion provides a seal against a sealing surface of the receptacle which may be on, outside of and/or inside of the rim of a receptacle such as a bottle or jar whilst allowing application of the appropriate amount of torque to inhibit backing off and to maintain a seal.
  • the receptacle is preferably a bottle or jar formed of glass or of a suitable plastics material.
  • the lid preferably has means for releasable attachment to the receptacle.
  • the lid may be intended to be permanently attached to the receptacle such that the lid remains associated with the receptacle even when it does not cover the opening on the receptacle, it is preferred that it is completely detachable from the receptacle.
  • the means for releasable attachment preferably comprises a portion on the lid having a profile adapted for interengagement with a complimentary profile provided at or near the neck and/or mouth of the opening on the receptacle.
  • This may comprise a screw-threaded arrangement, for instance using a multi-start thread or a continuous thread, between the receptacle and the lid involving a screw-thread on the receptacle and a corresponding screw thread and/or lugs on the lid.
  • the screw thread may have a relatively steep angle such that less than one complete rotation of the lid relative to the mouth or neck of the receptacle is required to attach or remove it from the receptacle.
  • the lid of the invention is produced by a process comprising injection moulding.
  • the sealing portion of the lid is formed by selective blowing of the polymer composition in predetermined regions of the lid to cause those regions of the lid to become foamed.
  • the remaining parts of the lid thus, remain essentially unexpanded. This means that the profile formed for interengagement with the receptacle to provide a screw-fit will remain strong to enable torque to be applied and maintained.
  • Selective blowing of thermoplastic polymer compositions is a,known technique.
  • the present invention provides a process for producing the lid of the invention comprising injection moulding a polymer composition to form an intermediate moulded body and then subjecting one or more predetermined regions of the intermediate moulded body to selective blowing to cause said predetermined regions to undergo foaming to form the sealing portion of the lid.
  • One way of selectively blowing the predetermined regions of the intermediate moulded body is achieved by forming the said regions at a greater thickness than the remainder of the body.
  • a blowing agent is incorporated into the whole of the polymer composition, on release of the moulded body from the mould, the thicker parts of the moulded body which are still soft are expanded by gas in the polymer composition.
  • Parts of the moulded body where the skin of the polymer composition has solidified maintain a packed structure and are, thus, not expanded.
  • the polymer composition in the relatively thicker softer parts of the moulded body becomes foamed by the gas when the moulded body is released from the mould.
  • the thinner sections are hard when released from the mould and these sections do not undergo expansion.
  • the structure of the foam in the predetermined sections is preserved as the moulded body cools.
  • An example of a suitable blowing agent is carbon dioxide.
  • the invention relates to a container for a foodstuff comprising a receptacle for the foodstuff and a lid of the invention.
  • a container 1 comprises a receptacle 2 and a lid 3 .
  • Receptacle 2 which may be made of any suitable material (e.g., glass or plastics material) comprises a main body 4 in which, in use, the foodstuff is stored and neck portion 5 having a screw-thread 6 for releasable attachment to lid 3 to be attached or removed from receptacle 2 by manual rotation of lid 3 relative to receptacle 2 .
  • the neck portion 5 may be formed with a continuous helical rib and lid 3 with a complimentary helical thread adapted to interengage with the rib on the neck portion.
  • Lid 3 is of plastics material typically of a thermoplastic polymer such as polypropylene, optionally together with conventional additives for polymer compositions such as plasticisers, fillers, colouring agents and stabilisers.
  • Lid 3 comprises sealing portion 8 (shaded in the figures) which, in use, abuts the sealing surface of neck portion 5 of receptacle 2 to provide a hermetic seal between lid 3 and receptacle 2 .
  • sealing portion 8 prevents anything which is stored in main body 4 of the receptacle 2 from coming into contact with the atmosphere.
  • Sealing portion 8 is of the same polymer composition as the remainder of lid 3 but, unlike the remainder of lid 3 , it is foamed and can thus be resiliently deformed when lid 3 is screwed onto receptacle 2 . This deformation of sealing portion 8 creates the hermetic seal as well as providing a force between screw-thread 6 and lugs 7 .
  • the compressible nature of the foamed section in relation to the main lid body reduces the tendency of lid 3 to "back off".
  • sealing portion 8a is present only towards the outermost edge of lid 3a .
  • Sealing portion 8a abuts the neck of a receptacle to form a hermetic seal but the region of contact between sealing portion 8a and the neck of the receptacle is now towards the outside of the mouth of the receptacle.
  • sealing portion 8b is displaced towards the centre of lid 3b and, in use, abuts the inside edge of the mouth of the receptacle to form a hermetic seal.
  • Lid 3 is generally disc-shaped and sealing portion 8 takes the form of a ring which passes circumferentially around the inside rim of lid 3 to ensure a complete seal around the edge of the mouth of a circular opening on a receptacle.
  • Lugs 7 are substantially evenly disposed about the edge of lid 3 in the case of a multi-start thread. Alternatively, a profile corresponding to a continuous thread can be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
EP00304974A 1999-06-17 2000-06-13 Einteiliger Behälterdeckel Withdrawn EP1061000A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9914137.6A GB9914137D0 (en) 1999-06-17 1999-06-17 One piece lid for a receptacle
GB9914137 1999-06-17

Publications (2)

Publication Number Publication Date
EP1061000A2 true EP1061000A2 (de) 2000-12-20
EP1061000A3 EP1061000A3 (de) 2003-04-02

Family

ID=10855538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00304974A Withdrawn EP1061000A3 (de) 1999-06-17 2000-06-13 Einteiliger Behälterdeckel

Country Status (8)

Country Link
EP (1) EP1061000A3 (de)
GB (1) GB9914137D0 (de)
HU (1) HUP0002290A2 (de)
IL (1) IL136625A0 (de)
PL (1) PL340747A1 (de)
RU (1) RU2000116236A (de)
SK (1) SK9082000A3 (de)
ZA (1) ZA200002893B (de)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2633966A1 (de) * 2012-02-28 2013-09-04 Kyoraku Co., Ltd. Schaumrohr
US8834650B2 (en) 2006-07-21 2014-09-16 Ivera Medical Corporation Medical implement cleaning device
US8832894B2 (en) 2011-07-19 2014-09-16 Ivera Medical Corporation Cleaning device for male end of intraveneous set
US9259284B2 (en) 2007-02-12 2016-02-16 3M Innovative Properties Company Female Luer connector disinfecting cap
US9700710B2 (en) 2006-06-22 2017-07-11 Excelsior Medical Corporation Antiseptic cap equipped syringe
US9700676B2 (en) 2006-06-22 2017-07-11 Excelsior Medical Corporation Method of cleaning and covering an access site
US9707350B2 (en) 2006-06-22 2017-07-18 Excelsior Medical Corporation Antiseptic cap equipped syringe
US9867975B2 (en) 2011-05-23 2018-01-16 Excelsior Medical Corporation Antiseptic line cap
US9895526B2 (en) 2006-03-08 2018-02-20 Ivaxis, Llc Anti-contamination cover for fluid connections
US9907617B2 (en) 2013-03-15 2018-03-06 3M Innovative Properties Company Medical implement cleaning device
US9999471B2 (en) 2012-06-04 2018-06-19 3M Innovative Properties Company Male medical implement cleaning device
US10016587B2 (en) 2011-05-20 2018-07-10 Excelsior Medical Corporation Caps for needleless connectors
US10046156B2 (en) 2014-05-02 2018-08-14 Excelsior Medical Corporation Strip package for antiseptic cap
US10166381B2 (en) 2011-05-23 2019-01-01 Excelsior Medical Corporation Antiseptic cap
US20200140144A1 (en) * 2016-09-05 2020-05-07 Formabowl Llp Collapsible container
US10744316B2 (en) 2016-10-14 2020-08-18 Icu Medical, Inc. Sanitizing caps for medical connectors
US11229746B2 (en) 2006-06-22 2022-01-25 Excelsior Medical Corporation Antiseptic cap
US11351353B2 (en) 2008-10-27 2022-06-07 Icu Medical, Inc. Packaging container for antimicrobial caps
US11389634B2 (en) 2011-07-12 2022-07-19 Icu Medical, Inc. Device for delivery of antimicrobial agent into trans-dermal catheter
US11400195B2 (en) 2018-11-07 2022-08-02 Icu Medical, Inc. Peritoneal dialysis transfer set with antimicrobial properties
US11433215B2 (en) 2018-11-21 2022-09-06 Icu Medical, Inc. Antimicrobial device comprising a cap with ring and insert
US11517732B2 (en) 2018-11-07 2022-12-06 Icu Medical, Inc. Syringe with antimicrobial properties
US11517733B2 (en) 2017-05-01 2022-12-06 Icu Medical, Inc. Medical fluid connectors and methods for providing additives in medical fluid lines
US11534595B2 (en) 2018-11-07 2022-12-27 Icu Medical, Inc. Device for delivering an antimicrobial composition into an infusion device
US11541220B2 (en) 2018-11-07 2023-01-03 Icu Medical, Inc. Needleless connector with antimicrobial properties
US11541221B2 (en) 2018-11-07 2023-01-03 Icu Medical, Inc. Tubing set with antimicrobial properties
US11559467B2 (en) 2015-05-08 2023-01-24 Icu Medical, Inc. Medical connectors configured to receive emitters of therapeutic agents
US11944776B2 (en) 2020-12-07 2024-04-02 Icu Medical, Inc. Peritoneal dialysis caps, systems and methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244481A (en) * 1978-07-25 1981-01-13 Kornelis' Kunsthars Producten Industrie Bv Closure cap with sealing ring
US4295573A (en) * 1979-12-21 1981-10-20 Nordson Corporation Method of obtaining a seal upon the interior surface of a container closure and resulting product
US4585135A (en) * 1982-03-10 1986-04-29 W. R. Grace & Co. Screw closure
US4744478A (en) * 1986-10-23 1988-05-17 Permian Research Corporation Plastic closure with unitarily molded, foamed sealing layer
US5158195A (en) * 1985-12-12 1992-10-27 Tri-Tech Systems International, Inc. Closure cap with a seal and method of and apparatus for forming such closure and seal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244481A (en) * 1978-07-25 1981-01-13 Kornelis' Kunsthars Producten Industrie Bv Closure cap with sealing ring
US4244481B1 (de) * 1978-07-25 1984-09-11
US4295573A (en) * 1979-12-21 1981-10-20 Nordson Corporation Method of obtaining a seal upon the interior surface of a container closure and resulting product
US4585135A (en) * 1982-03-10 1986-04-29 W. R. Grace & Co. Screw closure
US5158195A (en) * 1985-12-12 1992-10-27 Tri-Tech Systems International, Inc. Closure cap with a seal and method of and apparatus for forming such closure and seal
US4744478A (en) * 1986-10-23 1988-05-17 Permian Research Corporation Plastic closure with unitarily molded, foamed sealing layer

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9895526B2 (en) 2006-03-08 2018-02-20 Ivaxis, Llc Anti-contamination cover for fluid connections
US9707350B2 (en) 2006-06-22 2017-07-18 Excelsior Medical Corporation Antiseptic cap equipped syringe
US9707349B2 (en) 2006-06-22 2017-07-18 Excelsior Medical Corporation Antiseptic cap
US10328207B2 (en) 2006-06-22 2019-06-25 Excelsior Medical Corporation Antiseptic cap
US11229746B2 (en) 2006-06-22 2022-01-25 Excelsior Medical Corporation Antiseptic cap
US9700710B2 (en) 2006-06-22 2017-07-11 Excelsior Medical Corporation Antiseptic cap equipped syringe
US9700676B2 (en) 2006-06-22 2017-07-11 Excelsior Medical Corporation Method of cleaning and covering an access site
US11684720B2 (en) 2006-06-22 2023-06-27 Excelsior Medical Corporation Antiseptic cap that releases a gas such as nitric oxide
US9707348B2 (en) 2006-06-22 2017-07-18 Excelsior Medical Corporation Antiseptic cap with thread cover
US9700677B2 (en) 2006-06-22 2017-07-11 Excelsior Medical Corporation Antiseptic cap with antiseptic
US8834650B2 (en) 2006-07-21 2014-09-16 Ivera Medical Corporation Medical implement cleaning device
US8999073B2 (en) 2006-07-21 2015-04-07 Ivera Medical Corporation Medical implement cleaning device
US10195000B2 (en) 2007-02-12 2019-02-05 3M Innovative Properties Company Female luer connector disinfecting cap
US9259284B2 (en) 2007-02-12 2016-02-16 3M Innovative Properties Company Female Luer connector disinfecting cap
US11160932B2 (en) 2008-06-19 2021-11-02 Excelsior Medical Corporation Antiseptic cap that releases a gas such as nitric oxide
US11351353B2 (en) 2008-10-27 2022-06-07 Icu Medical, Inc. Packaging container for antimicrobial caps
US10695550B2 (en) 2011-05-20 2020-06-30 Excelsior Medical Corporation Caps for needleless connectors
US10016587B2 (en) 2011-05-20 2018-07-10 Excelsior Medical Corporation Caps for needleless connectors
US9867975B2 (en) 2011-05-23 2018-01-16 Excelsior Medical Corporation Antiseptic line cap
US10166381B2 (en) 2011-05-23 2019-01-01 Excelsior Medical Corporation Antiseptic cap
US10806919B2 (en) 2011-05-23 2020-10-20 Excelsior Medical Corporation Antiseptic cap
US11826539B2 (en) 2011-07-12 2023-11-28 Icu Medical, Inc. Device for delivery of antimicrobial agent into a medical device
US11389634B2 (en) 2011-07-12 2022-07-19 Icu Medical, Inc. Device for delivery of antimicrobial agent into trans-dermal catheter
US8832894B2 (en) 2011-07-19 2014-09-16 Ivera Medical Corporation Cleaning device for male end of intraveneous set
EP2633966A1 (de) * 2012-02-28 2013-09-04 Kyoraku Co., Ltd. Schaumrohr
US9999471B2 (en) 2012-06-04 2018-06-19 3M Innovative Properties Company Male medical implement cleaning device
US9907617B2 (en) 2013-03-15 2018-03-06 3M Innovative Properties Company Medical implement cleaning device
US10821278B2 (en) 2014-05-02 2020-11-03 Excelsior Medical Corporation Strip package for antiseptic cap
US11998715B2 (en) 2014-05-02 2024-06-04 Excelsior Medical Corporation Strip package for antiseptic cap
US10046156B2 (en) 2014-05-02 2018-08-14 Excelsior Medical Corporation Strip package for antiseptic cap
US11559467B2 (en) 2015-05-08 2023-01-24 Icu Medical, Inc. Medical connectors configured to receive emitters of therapeutic agents
US20200140144A1 (en) * 2016-09-05 2020-05-07 Formabowl Llp Collapsible container
US11497904B2 (en) 2016-10-14 2022-11-15 Icu Medical, Inc. Sanitizing caps for medical connectors
US10744316B2 (en) 2016-10-14 2020-08-18 Icu Medical, Inc. Sanitizing caps for medical connectors
US11517733B2 (en) 2017-05-01 2022-12-06 Icu Medical, Inc. Medical fluid connectors and methods for providing additives in medical fluid lines
US11517732B2 (en) 2018-11-07 2022-12-06 Icu Medical, Inc. Syringe with antimicrobial properties
US11534595B2 (en) 2018-11-07 2022-12-27 Icu Medical, Inc. Device for delivering an antimicrobial composition into an infusion device
US11541220B2 (en) 2018-11-07 2023-01-03 Icu Medical, Inc. Needleless connector with antimicrobial properties
US11541221B2 (en) 2018-11-07 2023-01-03 Icu Medical, Inc. Tubing set with antimicrobial properties
US11400195B2 (en) 2018-11-07 2022-08-02 Icu Medical, Inc. Peritoneal dialysis transfer set with antimicrobial properties
US11433215B2 (en) 2018-11-21 2022-09-06 Icu Medical, Inc. Antimicrobial device comprising a cap with ring and insert
US11944776B2 (en) 2020-12-07 2024-04-02 Icu Medical, Inc. Peritoneal dialysis caps, systems and methods

Also Published As

Publication number Publication date
SK9082000A3 (en) 2001-03-12
HUP0002290A2 (hu) 2001-12-28
RU2000116236A (ru) 2002-07-10
HU0002290D0 (en) 2000-08-28
GB9914137D0 (en) 1999-08-18
EP1061000A3 (de) 2003-04-02
ZA200002893B (en) 2000-12-12
PL340747A1 (en) 2000-12-18
IL136625A0 (en) 2001-06-14

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