[go: up one dir, main page]

WO2002011592A1 - Procede de formation d'une enceinte etanche au sein d'une boite metallique - Google Patents

Procede de formation d'une enceinte etanche au sein d'une boite metallique Download PDF

Info

Publication number
WO2002011592A1
WO2002011592A1 PCT/GB2001/002458 GB0102458W WO0211592A1 WO 2002011592 A1 WO2002011592 A1 WO 2002011592A1 GB 0102458 W GB0102458 W GB 0102458W WO 0211592 A1 WO0211592 A1 WO 0211592A1
Authority
WO
WIPO (PCT)
Prior art keywords
membrane
forming
sealed chamber
chamber
cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2001/002458
Other languages
English (en)
Inventor
Matthew John Searle
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.)
Thermotic Developments Ltd
Original Assignee
Thermotic Developments Ltd
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 Thermotic Developments Ltd filed Critical Thermotic Developments Ltd
Priority to AU60502/01A priority Critical patent/AU6050201A/en
Publication of WO2002011592A1 publication Critical patent/WO2002011592A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/24—Warming devices
    • A47J36/28—Warming devices generating the heat by exothermic reactions, e.g. heat released by the contact of unslaked lime with water
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3484—Packages having self-contained heating means, e.g. heating generated by the reaction of two chemicals

Definitions

  • the present invention relates to a method of forming a sealed chamber within a metal can and to a metal can with such a sealed chamber.
  • WO 96/29255 discloses a can having the same external dimensions and shape as conventional beverage cans, but having an indented base to define an external cavity in which means to cool or heat the contents of the can are received.
  • Heating or cooling of the contents of the can can be achieved by using two chemical reactants which are stable when separated, but which produce an exothermic reaction or an endothermic reaction when mixed.
  • US patent No. 5,626,022 shows just one example, from many, of an insert for a self-heating or self-cooiing can which enables mixing of the reactants when required. This construction, as is common, proposes the use of a module, which is pre- assembled and is then inserted into the can.
  • WO 01/24672 describes a self-heating or self-cooling metal can having an indented base defining an external cavity in which heating or cooling means are received.
  • heating means may comprise quicklime within a first chamber in the external cavity and water within a second chamber of the external cavity.
  • a breakable membrane separates the first and second chambers and is piercable by the depression of a piercing member to activate the heating means. When the breakable membrane is pierced, the water from the second chamber flows over the quicklime in the first chamber to cause an exothermic reaction.
  • the breakable membrane extends across the external cavity of the metal can to define the first and second chambers.
  • the present invention is concerned with a method of forming a reliably sealed chamber within a metal can, for example, to hermetically seal in the contents of cooling or heating means of a self-heating or a self-cooling container.
  • a method of forming a sealed chamber within a cavity in a metal can body comprising the steps of positioning a membrane within the cavity to extend thereacross and thereby define a chamber to be sealed, a circumferential portion of the membrane being in contact with a sealing surface of the can body, and applying the membrane to the can body by a heated sealing head such that heat and pressure are applied to the circumferential portion of the membrane arranged between the sealing head and the can body to seal the circumferential portion of the membrane to the sealing surface of the can body, wherein the surface of the sealing head which contacts the membrane has a conformal layer to ensure that the circumferential portion of the membrane accurately follows any contours in the sealing surface of the can body.
  • Metal cans may be formed by moulding, pressing, deep drawing, or reverse drawing operations.
  • the surfaces thereof are not perfectly flat and it is unlikely, for example, that a sealing surface in a cavity in a metal can will be perfectly flat. This can cause difficulties in achieving a reliable seal between a membrane and its sealing surface.
  • the surface of the sealing head which contacts the membrane has a conformal layer to ensure that the circumferential portion of the membrane is, itself, conformed to accurately follow the contours in the sealing surface of the can body. In this way, it can be ensured that there is a perfect and reliable seal between the membrane and the sealing surface. This, in its turn, ensures that the sealed chamber is hermetically sealed.
  • the sealing surface of the can body is an annular flange formed within said cavity.
  • an adhesive is provided on the membrane and/or on the sealing surface of the can body prior to the sealing of the membrane to the can body by the sealing head.
  • the membrane may have a coating of, or be laminated with, a meltable material arranged to melt upon the application of heat and pressure thereto to seal the membrane to the can body.
  • the membrane may have a coating of, or be laminated with, a weldable material arranged to weld the membrane to the can body upon the application of heat and pressure to the membrane.
  • the membrane may have a layer of meltable material arranged to adhere the membrane to the can body upon the application of heat and pressure thereto.
  • said meltable or weldable material is a polymeric material.
  • the conformal layer on the contact surface of the sealing head is a thin layer of a compliant or resilient material.
  • the thin layer of compliant or resilient material may be of the order of 1 -
  • the thin layer of compliant or resilient material preferably comprises a polymeric material incorporating thermally conductive particles.
  • the thin layer of compliant or resilient material may comprise a silicon material with an aluminium powder loading.
  • the compliant or resilient material may be a rubber, with or without a loading of thermally conductive material. It would also be possible to provide a compliant mesh of metal or a woven metal material.
  • the membrane may be of the order of 20 microns thick.
  • the membrane may comprise a layer of metal foil having a plastics or cellulose lacquer on one or both surfaces thereof.
  • the membrane may comprise a laminated or layered material incorporating one or more of glass, waxed paper and frangible plastics material.
  • the metal can body has a tubular peripheral wall, a top membr closing one end of the peripheral wall, and a base member closing the other end of the peripheral wall.
  • An internal cavity for the contents of the container is defined within the peripheral wall, and the base member is indented to define an external cavity which extends within the peripheral wall but is separated from the internal cavity.
  • the membrane is a breakable membrane which extends across the external cavity to divide it into first and second chambers, with a first reactant material being sealed within the first chamber by said breakable membrane.
  • a disc shaped breakable membrane is sealed to the annular flange after a charge of the first reactant material has been filled into the first chamber.
  • a metal can having a sealed chamber within a cavity within a metal can body, wherein the sealed chamber has been formed by a method as defined above.
  • the present invention also extends to a self-heating or self-cooling container having a tubular peripheral wall, a top member closing one end of the peripheral wall, and a base member closing the other end of the peripheral wall, an internal cavity for the contents of the container being defined within the peripheral wall, wherein the base member is indented to define an external cavity which extends within the peripheral wall but is separated from the internal cavity, and wherein means for heating or cooling the contents of the container are received within said external cavity, said heating or cooling means comprising a breakable membrane dividing the external cavity into first and second chambers, a first reactant material sealed within the first chamber by said breakable membrane, a closure member closing said second chamber to retain a second reactant material therein, and piercing means movable to break or pierce the breakable membrane whereby said first and second reactant materials can mix, and wherein said breakable membrane has been sealed to a sealing surface of the external cavity by the application of heat and pressure to the breakable membrane when positioned between the sealing surface and a heated sealing head,
  • Figure 1 shows schematically an embodiment of a self heating beverage container
  • Figure 2 shows an example of a self-heating container, in the inverted position, and illustrates the shape of its external cavity and of its closure member
  • Figure 3 illustrates a method of the invention for forming a sealed chamber in the external cavity of a container.
  • the container of the invention which is described below, may alternatively be arranged to be self-cooling.
  • a method of the invention finds general application whenever it is required to form a sealed chamber in a metal can.
  • the container shown in Figure 1 is a metal container 10 having a substantially cylindrical peripheral wall 12 which is closed at one end by a top member 14.
  • the container 10 for example, may have a can body of aluminium or steel.
  • a base member 16 of the container is indented to define an elongate external cavity 20 which extends within the peripheral wall 12.
  • the peripheral wall 12 and the top and base members 14 and 16 of the container together define an internal cavity 22 in which contents, such as a beverage, are received.
  • the external cavity 20 extends within this internal cavity 22, but is separated therefrom by the wall of the base member 16.
  • the container 10 illustrated in Figure 1 is configured to have the same external dimensions and shape as a conventional beverage can. This means that the can 10 can be filled and treated on existing filling lines.
  • the external cavity 20 of the can 10 is to be utilised to contain heating or cooling means.
  • the heating means may comprise quicklime (calcium oxide) 26 filled within a first chamber within the cavity 20.
  • the second chamber 32 is closed by a closure 30.
  • the can When it is required to heat the contents of the can 10, the can is inverted and stood on its top member 14 so that the base of the closure 30 is accessible.
  • a button, described below, on the bottom of the base is depressed whereby an elongate piercing member 42 pierces the membrane 24 so that water from the chamber 32 flows over the quicklime 26 to cause the exothermic reaction.
  • the steam which is generated is allowed to vent around the periphery of the closure 30 through vents or recesses (not illustrated) formed in either the periphery of the closure 30 or in the wall of the cavity 20 or in both.
  • the user will retain the can in its inverted position until the exit of steam has been completed. At this stage the contents of the can will have been heated to a satisfactory temperature.
  • the structure of the heating means is apparent from Figure 2 in which it can be seen that the base member 16 is shaped to define at least one annular flange 34 in the wall of the external cavity 20. This flange 34 is used to support the breakable membrane 24 whereby the external cavity 20 is divided into a first chamber 28 and a second chamber 32. It will be appreciated that the breakable membrane 24 may be piercable, rupturable or breakable in other manner.
  • the breakable membrane 24 is a disc of metal foil.
  • the membrane 24 is positioned in the cavity 20 and bonded or otherwise sealed along its periphery to the annular flange 34 as is described further below.
  • the closure 30 is formed from plastics material and is integral with the elongate piercing member 42.
  • the closure 30 comprises a substantially circular member having an annular peripheral rim 36.
  • This rim 36 defines an annular recess 38 which enables the closure 30 to be clipped on to the base of the can 10.
  • the free edge of the rim 36 carries an annular projection 40 which is arranged to engage within an annular groove provided externally of the base edge of the can 10.
  • the peripheral area of the closure 30 is made to have a greater thickness of material than the central area thereof.
  • the closure 30 carries an upstanding elongate piercing member 42.
  • this piercing member 42 is cylindrical and has a sharpened free end.
  • the piercing member 42 is fixed to the closure 30 centrally of a button 50 defined within the closure 30 by an annular groove 48. It will be seen that in the condition shown in Figure 2, the button 50 is convex and is positioned radially inwardly of the annular groove 48.
  • an open second chamber 32 is defined.
  • This second chamber 32 is filled with water which is retained therein by snap fitting the closure 30 into position on the base of the can 10.
  • the periphery of the closure 30 is shown to have an integrally formed seal in the form of an annually extending wiper 52.
  • the button 50 is pressed to move the piercing member 42 in a direction to pierce or break the breakable membrane 24. Generally, it is expected that depression of the button 50 will cause a positive break in the membrane 24 whereby water is quickly released into the quicklime within the.
  • vent channels may be provided through the material of the periphery of the closure 30 to open into the external cavity 20 radially outwardly of the wiper 52.
  • the wiper 52 is thereby able to prevent egress of water whilst allowing air and steam to exit.
  • the self-heating container described and illustrated can be filled on conventional filling lines, and the contents thereof may be subjected to any treatment required.
  • contents of the container may be pasteurised and/or sterilised.
  • heating means in its external cavity 20 it is a simple matter to invert each completed and filled container and provide it with heating means in its external cavity 20.
  • the external cavity 20 is charged with a predetermined amount of quicklime, a breakable membrane 24 is inserted and is bonded or otherwise sealed to the annular flange 34, a charge of water is then filled into the thus defined second chamber 32, and the closure 30 is clipped onto the container 10.
  • the embodiment described above shows a particularly simple construction for the heating means and a similar construction can be used for cooling means.
  • the final can is sufficiently robust to withstand normal transport and handling. It is required that the membrane 24 hermetically seal the chamber 28 with its charge of quicklime whereby contamination of the quicklime is prevented. This increases the shelf life of the heating means of the can 10.
  • annular flange, as 34, formed on the metal can body will not have a surface which is perfectly smooth. This means that it can be difficult to obtain a perfect seal between the circumferential portion of the membrane 24 and the externally facing sealing surface of the flange 34.
  • Figure 3 indicates a method of sealing the membrane 24 to the flange 34 which overcomes the difficulties.
  • the membrane 24 is a foil disc provided with appropriate means to enable its circumferential portion to be sealed to the flange 34 by the application of heat and pressure thereto.
  • the foil disc 24 may have a coating of, or be laminated with, a material which is arranged to melt upon the application of heat and pressure.
  • the foil disc may have a coating of, or be laminated with, a material arranged to weld the membrane to the annular flange upon the application of heat and pressure thereto.
  • the foil disc 24 may have a layer of meltable material arranged to adhere it to the flange 34.
  • the meltable or weldable material may be any suitable material, such as a polymeric material or a cellulose material. It is also possible to apply an adhesive either to the foil disc or to the annular flange before the foil disc 24 is placed in position prior to sealing.
  • the foil disc 24 is placed in position in contact with the annular flange 34. This may be done, for example, by forming the foil disc with a die cutter having an integral sealing head. The foil disc may then be transported into position by the sealing head on which it is held by a small vacuum. An alternative is to cut the foil disc separately and use a pick and place machine to position the foil disk 24 on the externally facing sealing surface of the annular flange 34.
  • a heated sealing head 60 is introduced into the external cavity 20 and is moved downwardly such that it engages the foil disc 24 and presses its circumferential portion against the sealing surface of the annular flange 34.
  • This sealing head 60 may be the integral sealing heat of the die cutter, or a separate sealing head. It will be appreciated that the foil disc 24 is subjected to pressure by the reaction of the sealing head 60 with the annular flange 34, and that the foil disc is also subjected to heat. The application of heat and pressure seals the circumferential portion of the foil disc 24 to the flange 34.
  • the contact surface of the sealing head 60 is provided with a conformal layer 62.
  • the conformal layer 62 is arranged to deform such that its surface conforms exactly to the contours of the sealing surface of the annular flange 34. This, in its turn, means that the circumferential porition of the foil disc 24 is also deformed to. conform to the sealing surface and it is this conforming of the foil disc which leads to the achievement of a reliable seal between the foil disc 24 and the annular flange 34.
  • the conformal layer 62 may be of any appropriate material which is able to accurately conform to the sealing surface and also to ensure that the appropriate heating effect is applied to the foil disc.
  • the conformal layer also needs to survive in the pressure and temperature applying environment.
  • the conformal layer 62 is a thin layer of a compliant or resilient material.
  • a layer having a thickness of the order of 1- 2mm is presently preferred.
  • the conformal layer 62 may comprise any appropriate material or combination of materials.
  • the compliant or resilient material may comprise a polymeric material incorporating thermally conductive particles.
  • the conformal layer may comprise a silicon material with an aluminium powder loading.
  • the membrane 24 is said to be a disc of metal foil.
  • the membrane may incorporate one or more of glass, wax paper and frangible plastics.
  • Any suitable material may have a plastics based lacquer on the contact side and a protective cellulose lacquer or layer on its reverse.
  • the membrane may be of the order of 20 microns thick.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Package Specialized In Special Use (AREA)

Abstract

La présente invention concerne une boîte métallique (10) présentant un fond en retrait (16) définissant une cavité externe (20) servant à contenir un moyen de chauffe. Le moyen de chauffe comprend de la chaux vive (26) contenue dans une première enceinte (28) et de l'eau au sein d'une deuxième enceinte (32) de la cavité (20). Une membrane frangible (24) sépare les deux enceintes (28, 32) et scelle hermétiquement la chaux vive (26) dans la première enceinte (28). Afin de sceller la membrane (24), pouvant être sous la forme d'un disque de feuille métallique, à la surface de scellement d'une collerette annulaire (34), constituée dans la cavité (20), on utilise un tête de scellage réchauffée (60) pour l'application de la feuille métallique (24) sur la collerette annulaire (34) de manière à appliquer de la chaleur et de la pression à la feuille métallique. La tête de scellage réchauffée (60) porte une fine couche souple (62) apte à s'adapter aux contours de la surface de scellement de la collerette (34) permettant ainsi d'assurer que la feuille métallique (24) s'adapte de la même manière et donc d'obtenir une étanchéité fiable et parfaite entre la feuille métallique (24) et la surface de scellement de la collerette annulaire (34).
PCT/GB2001/002458 2000-06-05 2001-06-04 Procede de formation d'une enceinte etanche au sein d'une boite metallique Ceased WO2002011592A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60502/01A AU6050201A (en) 2000-06-05 2001-06-04 A method for forming a sealed chamber within a metal can

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0013567.3 2000-06-05
GB0013567A GB0013567D0 (en) 2000-06-05 2000-06-05 Improvements to heat sealing

Publications (1)

Publication Number Publication Date
WO2002011592A1 true WO2002011592A1 (fr) 2002-02-14

Family

ID=9892951

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/002458 Ceased WO2002011592A1 (fr) 2000-06-05 2001-06-04 Procede de formation d'une enceinte etanche au sein d'une boite metallique

Country Status (3)

Country Link
AU (1) AU6050201A (fr)
GB (1) GB0013567D0 (fr)
WO (1) WO2002011592A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864892A (en) * 1973-05-29 1975-02-11 Mahaffy & Harder Eng Co Automatic packaging method and apparatus with heat-sealing elements having resilient heat conducting members
US4528218A (en) * 1982-12-07 1985-07-09 La "Grog" S.R.L. Disposable device for self-heating or self-cooling of drinks or foodstuffs by an exothermic or endothermic reaction
US4582537A (en) * 1984-11-19 1986-04-15 Maszalec Judith A Elastomeric compressible metallic mixture
DE4404984A1 (de) * 1994-02-17 1995-08-31 Hamba Maschf Schließkopf für innenseitig schmelzkleberbeschichtete Deckelfolien von Lebensmittelbehältern
WO1996029255A1 (fr) 1995-03-23 1996-09-26 Matthew John Searle Recipient a boissons dote d'une piece rapportee de chauffage ou de refrigeration
US5626022A (en) 1994-05-31 1997-05-06 Insta-Heat, Inc. Container with integral module for heating or cooling the contents
WO2001024672A1 (fr) 1999-10-06 2001-04-12 Thermotic Developments Limited Contenants autochauffants ou autorefroidissants

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864892A (en) * 1973-05-29 1975-02-11 Mahaffy & Harder Eng Co Automatic packaging method and apparatus with heat-sealing elements having resilient heat conducting members
US4528218A (en) * 1982-12-07 1985-07-09 La "Grog" S.R.L. Disposable device for self-heating or self-cooling of drinks or foodstuffs by an exothermic or endothermic reaction
US4582537A (en) * 1984-11-19 1986-04-15 Maszalec Judith A Elastomeric compressible metallic mixture
DE4404984A1 (de) * 1994-02-17 1995-08-31 Hamba Maschf Schließkopf für innenseitig schmelzkleberbeschichtete Deckelfolien von Lebensmittelbehältern
US5626022A (en) 1994-05-31 1997-05-06 Insta-Heat, Inc. Container with integral module for heating or cooling the contents
WO1996029255A1 (fr) 1995-03-23 1996-09-26 Matthew John Searle Recipient a boissons dote d'une piece rapportee de chauffage ou de refrigeration
WO2001024672A1 (fr) 1999-10-06 2001-04-12 Thermotic Developments Limited Contenants autochauffants ou autorefroidissants

Also Published As

Publication number Publication date
AU6050201A (en) 2002-02-18
GB0013567D0 (en) 2000-07-26

Similar Documents

Publication Publication Date Title
US20020129610A1 (en) Self-heating or self-cooling containers
AU2002256320B2 (en) Insertable thermotic module for self-heating can
CA2189460C (fr) Contenant avec module incorpore destine au chauffage ou au refroidissement du contenu
US20070125362A1 (en) Self-heating container
EP1481921A1 (fr) Emballage autothermique
TW201529108A (zh) 藥劑揮發袋及收納其之藥劑揮發容器
CN101027227A (zh) 自加热或冷却容器
WO2017122047A1 (fr) Module autochauffant et procédé d'installation
JP6651651B2 (ja) 高効率自己加熱容器
EP2911950B1 (fr) Récipient à changement de température
WO2002011592A1 (fr) Procede de formation d'une enceinte etanche au sein d'une boite metallique
WO2002098761A1 (fr) Contenants auto-chauffant ou auto-refroidissant
WO2002001994A1 (fr) Unite permettant le melange de deux materiaux reactifs
JP2008535546A (ja) 内容物を加熱または冷却するための一体型モジュールを備えた容器
US20060226109A1 (en) Integrated food package for infants
JP4154566B2 (ja) ヒートシール蓋付きキャップとそのキャップ本体へのヒートシール蓋装着方法
EP0061929A1 (fr) Fermeture de récipient se prêtant au scellage par induction
JP2005335801A (ja) キャップ付き容器
JPH0635976Y2 (ja) 内容物を加熱又は冷却する缶詰
JP2008290740A (ja) 密封性容器のシール方法
JPH0891437A (ja) 蓋材の剥離が容易なカップ状容器
JPS62151235A (ja) 金属缶の密封方法および密封用缶蓋
JPH04102532A (ja) 容器に対する蓋の熱封緘装置
JPH0632322U (ja) 液体用紙容器の注出口栓

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP