GB2030103A - Method of sealing metal foil closures to glass vessels - Google Patents
Method of sealing metal foil closures to glass vessels Download PDFInfo
- Publication number
- GB2030103A GB2030103A GB7924982A GB7924982A GB2030103A GB 2030103 A GB2030103 A GB 2030103A GB 7924982 A GB7924982 A GB 7924982A GB 7924982 A GB7924982 A GB 7924982A GB 2030103 A GB2030103 A GB 2030103A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- rim
- adhesive
- glass
- bond
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 36
- 239000011888 foil Substances 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 26
- 238000007789 sealing Methods 0.000 title claims description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 40
- 230000001070 adhesive effect Effects 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004132 cross linking Methods 0.000 claims abstract description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000009792 diffusion process Methods 0.000 claims abstract description 3
- 229910000077 silane Inorganic materials 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 14
- 239000005394 sealing glass Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- -1 Silicon organic compounds Chemical class 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229920001169 thermoplastic Polymers 0.000 claims description 6
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 230000006866 deterioration Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000002052 molecular layer Substances 0.000 claims description 4
- 235000011837 pasties Nutrition 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 235000008476 powdered milk Nutrition 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000012790 adhesive layer Substances 0.000 claims description 2
- 230000002411 adverse Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000428 dust Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 230000002028 premature Effects 0.000 claims description 2
- 150000004756 silanes Chemical class 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
- B65B7/164—Securing by heat-sealing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Closures For Containers (AREA)
- Packages (AREA)
- Joining Of Glass To Other Materials (AREA)
- Closing Of Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
A metal foil, applied over the opening and the rim of a glass vessel is secured to the rim by a heat activatable adhesive upon the application of heat and pressure. In order to produce a reliable bond between the glass vessel and the foil, without diffusion or harming of the adhesive bond occurring when the vessel holds water-containing contents, a bond promoter, such as a silane, with a high affinity for glass and with free bonds for firm cross-linking to the adhesive is applied to the rim of the vessel or incorporated in the adhesive.
Description
SPECIFICATION
Methods of sealing glass vessels
This invention relates to methods of sealing glass vessels having an opening surrounded by a rim, in which a metal foil is applied over the opening and the rim, and a heat activatable adhesive is applied to the rim and then the foil is stuck to the rim by pressing the foil against the rim with the adhesive in between under the application of heat.
In order to seal glass vessels, metal foils, for example of aluminium, coated with a thermoplastic adhesive may be used. The adhesive-coated foil is pressed on to the rim of the vessel under the application of heat until the thermoplastic coating adheres to the rim of the vessel and then the heat is removed. Such seals protect the contents of the vessel from the ingress of moisture, dust and gases from outside and are used predominantly for dry, pulverulent contents such as coffee powder and dried milk products.
Other methods of sealing glass vessels include the fitting of screw closure caps with waxed paper inserts so that the rim of the glass vessel mouth is sealed to the waxed paper by the application pressure. When the closure cap is removed, the undamaged paper insert remains in position and shows that the contents of the vessel have not been tampered with. Instead of heat and pressure, the application of electro-magnetic high-frequency induction fields may be used for joining together glass and adhesive-coated metal foil.
Here again, the seal serves only for protecting dry contents.
Vessels made of thermoplastics materials may have sealing membranes welded to them so that there is a hermetic seal between the vessel material and the closure membrane.
Vessels closed in this manner are suitable also for liquid contents. With glass vessels, such welding is, of course, not possible.
Silicon organic compounds may also be used as bond promoters between glass and plastics materials. Silicon organic compounds are also used in the production of glass fibre reinforced plastics materials and when bonding two pieces of glass together. A firm bond between the surfaces results and the bond is also moisture resistant.
When sealing glass vessels with a metal foil using an adhesive, water molecules from moisture-containing contents tend to diffuse beneath the adhesive layer between the glass and the metal foil so that for vessels containing liquid or pasty materials only closure caps of metal of plastics material with or without injected compound have so far been used.
The object of the present invention is to provide a method of sealing glass vessels as initially described, by which a reliable bond between the glass and the metal foil is achieved, the bond resisting deterioration and diffusion when the vessel holds water-containing materials.
To this end, according to this invention, in a method of sealing a glass container as initially described, a bond promoter with a high affinity for glass and with free bonds for firm cross-linking to the adhesive is applied on to the rim of the vessel.
Silanes or other silicon organic compounds are preferably used as the bond promoter.
These are ideal bond promoters, since on account of their silicon content they are related to the glass and they form owing to their organic nature a bridge to the adhesive.
In this manner, a seal between glass and a metal foil, especially an aluminium foil, is obtained which is not diffused beneath by water molecules from liquid or pasty contents in the vessel and is not adversely influenced by such contents in a way which could lead to premature deterioration of the contents.
The bond promoter may be applied in a mono-molecular layer to the rim of the glass vessel. It is also possible to incorporate the bond promoter in a very small proportion into the adhesive which is used. The adhesive itself can be applied to the metal foil or to the rim of the vessel.
Furthermore the rim of the vessel may, immediately after manufacture and cooling of the vessel, be treated with the bond promoter and subsequently by heated with the adhesive. It is alternatively possible to apply an adhesive incorporating a bond promoter to the rim of the vessel immediately after manufacture and cooling of the glass vessel. The metal foil is applied to the rim of the vessel under the application of heat after the vessel has been filled.
1. A method of sealing a glass vessel having an opening surrounded by a rim, in which a metal foil is applied over the opening and the rim, and a heat activatable adhesive is applied to the rim and then the foil is stuck to the rim by pressing the foil against the rim with the adhesive in between under the application of heat, wherein a bond promoter with a high affinity for glass and with free bonds for firm cross-linking to the adhesive is applied on to the rim of the vessel.
2. A method according to Claim 1, in which the bond promoter is a silicon organic compound.
3. A method according to Claim 2, in which the bond promoter is silane.
4. A method according to any one of
Claims 1 to 3, in which the bond promoter is applied as a mono-molecular layer to the rim of the vessel.
5. A method according to any one of
Claims 1 to 3, in which the bond promoter is incorporated in the adhesive.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (10)
1. A method of sealing a glass vessel having an opening surrounded by a rim, in which a metal foil is applied over the opening and the rim, and a heat activatable adhesive is applied to the rim and then the foil is stuck to the rim by pressing the foil against the rim with the adhesive in between under the application of heat, wherein a bond promoter with a high affinity for glass and with free bonds for firm cross-linking to the adhesive is applied on to the rim of the vessel.
2. A method according to Claim 1, in which the bond promoter is a silicon organic compound.
3. A method according to Claim 2, in which the bond promoter is silane.
4. A method according to any one of
Claims 1 to 3, in which the bond promoter is applied as a mono-molecular layer to the rim of the vessel.
5. A method according to any one of
Claims 1 to 3, in which the bond promoter is incorporated in the adhesive.
6. A method according to any one of
Claims 1 to 5, in which the adhesive is applied as a layer to the metal foil.
7. A method according to any one of
Claims 1 to 5, in which the adhesive is applied to the rim of the vessel.
8. A method according to any one of
Claims 1 to 4, or Claim 6 or Claim 7 when dependent on any one of Claims 1 to 4, in which the rim of the vessel is treated with the bond promoter immediately after manufacture and cooling of the vessel and is subsequently treated with the adhesive.
9. A method according to Claim 5, or
Claim 6 or Claim 7 when dependent on Claim 5, in which the rim of the vessel has the adhesive applied to it immediately after manufacture and cooling of the vessel.
10. A method according to Claim 1, substantially as described herein.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2833334A DE2833334C2 (en) | 1978-07-29 | 1978-07-29 | Method for closing a packaging container made of glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2030103A true GB2030103A (en) | 1980-04-02 |
| GB2030103B GB2030103B (en) | 1983-04-27 |
Family
ID=6045702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7924982A Expired GB2030103B (en) | 1978-07-29 | 1979-07-18 | Method of sealing metal foil closure to glass vessels |
Country Status (9)
| Country | Link |
|---|---|
| BE (1) | BE877940A (en) |
| CH (1) | CH640197A5 (en) |
| DE (1) | DE2833334C2 (en) |
| ES (1) | ES482887A1 (en) |
| FR (1) | FR2435439B1 (en) |
| GB (1) | GB2030103B (en) |
| HK (1) | HK34784A (en) |
| IT (1) | IT1118109B (en) |
| NL (1) | NL7905631A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523112A1 (en) * | 1982-03-08 | 1983-09-16 | Owens Illinois Inc | PROCESS FOR HERMETICALLY CLOSING A GLASS CONTAINER USING A THIN MEMBRANE AND CONTAINER THUS OBTAINED |
| GB2130574A (en) * | 1982-11-19 | 1984-06-06 | Owens Illinois Inc | Process for sealing a glass container with a thin closure |
| JPS59158253A (en) * | 1983-03-01 | 1984-09-07 | 大日本インキ化学工業株式会社 | Laminate for packing |
| FR2542700A1 (en) * | 1982-11-19 | 1984-09-21 | Owens Illinois Inc | Method for the hermetic sealing of a glass container using a thin lid, and resulting container |
| FR2831550A1 (en) * | 2001-10-31 | 2003-05-02 | Poteries Malicornaises | Composition for sealing a cover onto a vessel made of mineral material, metal or wood comprises a thermoplastic resin or elastomer and a silane or organosilane additive |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2848568A1 (en) * | 1978-11-09 | 1980-05-22 | Aluminium Walzwerke Singen | METHOD FOR CLOSING GLASS CONTAINERS WITH PLASTIC-COVERED METAL FILMS |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1454569A (en) * | 1974-04-16 | 1976-11-03 | United Glass Ltd | Sealing of containers |
| DE2549474A1 (en) * | 1975-11-05 | 1977-05-12 | Dynamit Nobel Ag | METHOD FOR MANUFACTURING LAMINATED SAFETY GLASS |
-
1978
- 1978-07-29 DE DE2833334A patent/DE2833334C2/en not_active Expired
-
1979
- 1979-07-18 GB GB7924982A patent/GB2030103B/en not_active Expired
- 1979-07-19 NL NL7905631A patent/NL7905631A/en not_active Application Discontinuation
- 1979-07-25 IT IT49860/79A patent/IT1118109B/en active
- 1979-07-27 BE BE0/196492A patent/BE877940A/en not_active IP Right Cessation
- 1979-07-27 ES ES482887A patent/ES482887A1/en not_active Expired
- 1979-07-27 FR FR7919755A patent/FR2435439B1/en not_active Expired
- 1979-07-27 CH CH697679A patent/CH640197A5/en not_active IP Right Cessation
-
1984
- 1984-04-18 HK HK347/84A patent/HK34784A/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2523112A1 (en) * | 1982-03-08 | 1983-09-16 | Owens Illinois Inc | PROCESS FOR HERMETICALLY CLOSING A GLASS CONTAINER USING A THIN MEMBRANE AND CONTAINER THUS OBTAINED |
| GB2130574A (en) * | 1982-11-19 | 1984-06-06 | Owens Illinois Inc | Process for sealing a glass container with a thin closure |
| FR2542700A1 (en) * | 1982-11-19 | 1984-09-21 | Owens Illinois Inc | Method for the hermetic sealing of a glass container using a thin lid, and resulting container |
| JPS59158253A (en) * | 1983-03-01 | 1984-09-07 | 大日本インキ化学工業株式会社 | Laminate for packing |
| JPS6311986B2 (en) * | 1983-03-01 | 1988-03-16 | Dainippon Ink & Chemicals | |
| FR2831550A1 (en) * | 2001-10-31 | 2003-05-02 | Poteries Malicornaises | Composition for sealing a cover onto a vessel made of mineral material, metal or wood comprises a thermoplastic resin or elastomer and a silane or organosilane additive |
| EP1310537A1 (en) * | 2001-10-31 | 2003-05-14 | Les Poteries Malicornaises | Composition for sealing a cover on a container |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2833334B1 (en) | 1979-06-13 |
| GB2030103B (en) | 1983-04-27 |
| ES482887A1 (en) | 1980-04-16 |
| HK34784A (en) | 1984-04-27 |
| DE2833334C2 (en) | 1984-06-14 |
| BE877940A (en) | 1979-11-16 |
| NL7905631A (en) | 1980-01-31 |
| FR2435439A1 (en) | 1980-04-04 |
| IT1118109B (en) | 1986-02-24 |
| CH640197A5 (en) | 1983-12-30 |
| IT7949860A0 (en) | 1979-07-25 |
| FR2435439B1 (en) | 1986-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |