GB1376514A - Container walls having integral opening devices - Google Patents

Container walls having integral opening devices

Info

Publication number
GB1376514A
GB1376514A GB4489972A GB4489972A GB1376514A GB 1376514 A GB1376514 A GB 1376514A GB 4489972 A GB4489972 A GB 4489972A GB 4489972 A GB4489972 A GB 4489972A GB 1376514 A GB1376514 A GB 1376514A
Authority
GB
United Kingdom
Prior art keywords
protective layer
score line
metal sheet
copolymer
ethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4489972A
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.)
Howmet Aerospace Inc
Original Assignee
Aluminum Company of 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 Aluminum Company of America filed Critical Aluminum Company of America
Publication of GB1376514A publication Critical patent/GB1376514A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44—Making closures, e.g. caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/704—Crystalline
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1064—Partial cutting [e.g., grooving or incising]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Laminated Bodies (AREA)
  • Closures For Containers (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

1376514 Laminates ALUMINUM CO OF AMERICA 28 Sept 1972 [19 Oct 1971] 44899/72 Heading B5N [Also in Divisions B3 and B8] A method of fabricating a container wall, e.g. a can end adapted to be provided with an integral opening device, e.g. a pull tab 14 riveted to the can end, comprises providing a metal sheet 22, e.g. of aluminium or steel or an alloy thereof having an adhesive material 24, e.g. an epoxy resin, a polyester or a polyurethane secured to one surface thereof, serving to secure to the metal sheet a continuous protective layer 26 of a partially crystalline polyolefine, a partially crystalline ethylene-olefine copolymer, a copolymer of ethylene with an acrylate or an ionomeric ethylene copolymer, scoring the metal sheet, e.g. around score line 8 to define a sector which is completely severable from the remainder of the container wall or partially severable and displaceable sufficiently to permit access to the contents of the container, while preventing fracture of the adhesively secured protective material and subsequently heating the composite sheet to a temperature of 275‹ to 375‹ F. for a period of 0À2 seconds to 4 minutes to stress relieve the protective layer and substantially eliminate microvoids established in the protective layer during the scoring operation. In a preferred embodiment, an integral upwardly directed rivet 20 is formed in the sector within the score line and heating is subsequently effected at a temperature of 300‹ to 350‹ F. for a period of 0À5 to 3 minutes. The score line may be formed using an anvil and an indenter tool.
GB4489972A 1971-10-19 1972-09-28 Container walls having integral opening devices Expired GB1376514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19048071A 1971-10-19 1971-10-19

Publications (1)

Publication Number Publication Date
GB1376514A true GB1376514A (en) 1974-12-04

Family

ID=22701520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4489972A Expired GB1376514A (en) 1971-10-19 1972-09-28 Container walls having integral opening devices

Country Status (15)

Country Link
US (1) US3762598A (en)
JP (1) JPS4849590A (en)
AR (1) AR209735A1 (en)
AU (1) AU458694B2 (en)
BE (1) BE790027A (en)
BR (1) BR7207101D0 (en)
CA (1) CA952831A (en)
DE (1) DE2250595B2 (en)
FR (1) FR2156726B1 (en)
GB (1) GB1376514A (en)
IT (1) IT966261B (en)
NL (1) NL153477B (en)
SE (1) SE399389B (en)
SU (1) SU638250A3 (en)
ZA (1) ZA726588B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227474A (en) * 1989-01-26 1990-08-01 Aluminum Co Of America Retortable container with easily-openable lid
US5049019A (en) * 1979-12-08 1991-09-17 Cmb Foodcan Plc Methods of making containers
US6666933B2 (en) 1997-04-16 2003-12-23 Crown Cork & Seal Technologies Corporation Can end, and method of manufacture therefor

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891117A (en) * 1974-05-24 1975-06-24 Dorn Co V Easy-opening can end construction
US4210618A (en) * 1975-09-12 1980-07-01 Ab Akerlund & Rausing Method of making tear opening devices for containers
NL185713C (en) * 1975-09-12 1990-07-02 Akerlund & Rausing Ab METHOD FOR MANUFACTURING GAS-PROOF PLASTIC HOLDER
JPS58183457A (en) * 1982-04-22 1983-10-26 東洋製罐株式会社 Heat seal cover with score
US4407893A (en) * 1981-12-03 1983-10-04 United States Pipe And Foundry Company Polyolefin coating containing an ionomer for metal substrates
JPS58160269A (en) * 1983-02-23 1983-09-22 東洋製罐株式会社 Vessel with easy-open heat seal cover
JPS60110641A (en) * 1983-11-21 1985-06-17 東洋紡績株式会社 Plastic can with metallic cover
JPS6122721U (en) * 1984-07-17 1986-02-10 日本製罐株式会社 can opening device
JPH0212189Y2 (en) * 1984-10-01 1990-04-05
JPS61287540A (en) * 1985-06-11 1986-12-17 昭和電工株式会社 Cover for can-like vessel
JPS6252044A (en) * 1985-08-20 1987-03-06 東洋製罐株式会社 Can body with easy-open cover
JPS6252045A (en) * 1985-08-31 1987-03-06 東洋製罐株式会社 Easy-open cover consisting of composite aluminum material
JPS63125152A (en) * 1986-11-12 1988-05-28 東洋製罐株式会社 Easy open cover
GB2246535B (en) * 1990-07-28 1994-01-26 Cmb Foodcan Plc Method of manufacturing a wall ironed can
EP0542104B1 (en) * 1991-11-08 1999-04-21 Nippon Steel Corporation Coated steel can lid with opening arrangement not requiring repair coating on outer and inner surfaces
SE504634C2 (en) * 1995-07-03 1997-03-24 Tetra Laval Holdings & Finance Ways to make packaging laminates with barrier properties
BR9914351A (en) * 1998-10-08 2001-06-26 Schmalbach Lubeca Temporary break block in a plate cover
CN100567091C (en) * 2005-10-19 2009-12-09 东洋制罐株式会社 Easy-open end
TWM336245U (en) * 2007-10-05 2008-07-11 li-hua Ceng Partial enhanced structure for wallboard of container
JP2017512163A (en) * 2014-03-07 2017-05-18 ボール コーポレイションＢａｌｌ Ｃｏｒｐｏｒａｔｉｏｎ End closure with large opening ring pull tab
US10632520B2 (en) 2014-03-07 2020-04-28 Ball Corporation End closure with large opening ring pull tab
CN107538881B (en) * 2016-06-28 2019-12-27 宝山钢铁股份有限公司 Production method and equipment of film-coated metal plate
DE102016112953A1 (en) * 2016-07-14 2018-01-18 Gregor Anton Piech Metallic box and associated can lid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL250677A (en) * 1959-04-27 1900-01-01
NL150479B (en) * 1965-04-27 1976-08-16 Montedison Spa PROCESS FOR THE MANUFACTURE OF HOT WELDABLE FOELIES.
US3510022A (en) * 1968-10-17 1970-05-05 Paul H Heller Removable tab having a protective coating
NO136667L (en) * 1969-05-16 Aluminum Co Of America
US3610462A (en) * 1969-07-17 1971-10-05 Nat Steel Corp Container scoreline and tear edge protection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5049019A (en) * 1979-12-08 1991-09-17 Cmb Foodcan Plc Methods of making containers
GB2227474A (en) * 1989-01-26 1990-08-01 Aluminum Co Of America Retortable container with easily-openable lid
GB2227474B (en) * 1989-01-26 1993-03-24 Aluminum Co Of America Retortable container with easily-openable lid
US6666933B2 (en) 1997-04-16 2003-12-23 Crown Cork & Seal Technologies Corporation Can end, and method of manufacture therefor

Also Published As

Publication number Publication date
JPS4849590A (en) 1973-07-12
NL153477B (en) 1977-06-15
FR2156726A1 (en) 1973-06-01
IT966261B (en) 1974-02-11
AR209735A1 (en) 1977-05-31
BE790027A (en) 1973-04-13
CA952831A (en) 1974-08-13
AU458694B2 (en) 1975-03-06
DE2250595B2 (en) 1976-05-06
DE2250595A1 (en) 1973-06-14
SE399389B (en) 1978-02-13
AU4574672A (en) 1974-02-21
NL7213934A (en) 1973-04-25
FR2156726B1 (en) 1976-08-20
US3762598A (en) 1973-10-02
ZA726588B (en) 1973-06-27
BR7207101D0 (en) 1973-09-13
SU638250A3 (en) 1978-12-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee