DE19502833A1 - Sealants for packaging, in particular metal packaging - Google Patents
Sealants for packaging, in particular metal packagingInfo
- Publication number
- DE19502833A1 DE19502833A1 DE1995102833 DE19502833A DE19502833A1 DE 19502833 A1 DE19502833 A1 DE 19502833A1 DE 1995102833 DE1995102833 DE 1995102833 DE 19502833 A DE19502833 A DE 19502833A DE 19502833 A1 DE19502833 A1 DE 19502833A1
- Authority
- DE
- Germany
- Prior art keywords
- compounds according
- sealing compounds
- parts
- packaging
- weight
- 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- Withdrawn
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 239000000565 sealant Substances 0.000 title claims description 13
- 238000004806 packaging method and process Methods 0.000 title claims description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 229920000620 organic polymer Polymers 0.000 claims abstract description 9
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 3
- -1 polyethylene Polymers 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 239000012779 reinforcing material Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000004605 External Lubricant Substances 0.000 claims description 2
- 239000004610 Internal Lubricant Substances 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- 230000003712 anti-aging effect Effects 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000004014 plasticizer Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims description 2
- 238000007792 addition Methods 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 229920000140 heteropolymer Polymers 0.000 claims 1
- 229920001519 homopolymer Polymers 0.000 claims 1
- 150000002763 monocarboxylic acids Chemical class 0.000 claims 1
- 235000013305 food Nutrition 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920005606 polypropylene copolymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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
- B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
- B65D53/06—Sealings formed by liquid or plastic material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/04—Non-macromolecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09K2200/0617—Polyalkenes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0642—Copolymers containing at least three different monomers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0655—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0667—Polyamides, polyimides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft Dichtungsmassen auf der Basis von organischen Polymeren, die sich zum Abdichten von Verpackungen, insbesondere Metallverpackungen, eignen und auch auf dem Lebensmittelsektor einsetzen lassen.The present invention relates to sealants based of organic polymers that are used to seal Packaging, especially metal packaging, is suitable and also deployed in the food sector.
Dichtungsmassen, vor allem solche für Metallverpackungen, werden derzeit meist auf der Basis von synthetischen Kautschuken, die üblicherweise in Wasser oder organischen Lösemitteln dispergiert sind, angeboten. Nach Auftrag - beispielsweise mittels einer Spritzpistole - auf einen Deckel oder Boden muß das Wasser oder Lösemittel(-gemisch) verdampft und die getrocknete Dichtung mindestens 24 Stunden vor dem Verschließen gelagert werden.Sealants, especially those for metal packaging currently mostly based on synthetic rubbers Usually dispersed in water or organic solvents are offered. After order - for example by means of a Spray gun - the water or on a lid or bottom Solvent (mixture) evaporates and the dried seal be stored at least 24 hours before closing.
Dieses Verfahren hat mehrere Nachteile: die Menge der Dichtungsmasse der Dispersion unterliegt einer deutlichen statistischen Streuung, ferner ist sie über die Viskosität gesteuert und damit in empfindlicher Weise von der Temperatur abhängig. Daher bedarf es einer häufigen Kontrolle der Menge der Dichtungsmasse und der deren Verteilung, um die notwendige Sicherheit bei der hermetischen Dichtung einer großen Anzahl von Dosen zu erzielen. Auch bei sorgfältiger Durchführung einer großen Anzahl von Stichprobenkontrollen werden zahlreiche weitere fehlerhafte Verpackungen hergestellt, bis ein Fehler sicher bemerkt worden ist. Anschließend muß die Produktion der Linie angehalten werden, bis der Fehler behoben ist.This procedure has several disadvantages: the amount of Sealant of the dispersion is subject to a clear one statistical scatter, furthermore it is about viscosity controlled and therefore sensitive to temperature dependent. Therefore, frequent checks on the amount of Sealant and its distribution to the necessary Security in the hermetic sealing of a large number of To achieve cans. Even with careful implementation large number of spot checks will be numerous more faulty packaging made until a mistake has surely been noticed. Then the production of the Line are stopped until the error is fixed.
Überraschenderweise konnten nun Dichtungsmassen aufgefunden werden, die die voranstehend aufgeführten Nachteile des Standes der Technik nicht aufweisen. Diese Dichtungsmassen enthalten oder basieren auf thermoplastische(n) Polymeren. Besonders bevorzugt sind thermoplastische Elastomere oder teilkristalline Thermoplaste. Dies können Polyolefine, Polyester, Polyamide, andere gegen die Füllgüter beständige Polymere sowie Mischungen hiervon sein. Bevorzugt setzt man Polyolefine wie Polymerisate oder Mischpolymerisate aus C₁-C₄-Monomeren ein, die in geringen Mengen weitere Monomere einpolymerisiert enthalten können, z. B. olefinisch ungesättigte Säuren, z. B. Acryl- oder Methacrylsäure, olefinisch ungesättigte Dicarbonsäuren oder deren Anhydride wie Maleinsäure, Fumarsäure oder Maleinsäureanhydrid, Ester der obengenannten Säuren, andere olefinisch ungesättigte Verbindungen mit polaren Gruppen oder olefinisch ungesättigte Monomere mit mehr als einer C-C-Doppelbindung wie Butadien, Isopren, Cyclopentadien bzw. Dicyclopentadien und Derivate davon.Surprisingly, sealants have now been found be the above disadvantages of the state of technology. These sealants contain or are based on thermoplastic (n) polymers. Especially thermoplastic elastomers or partially crystalline are preferred Thermoplastics. These can be polyolefins, polyesters, polyamides, other polymers and mixtures resistant to the contents be of this. Polyolefins such as polymers are preferably used or copolymers of C₁-C₄ monomers, which in small May contain amounts of other monomers copolymerized, for. B. olefinically unsaturated acids, e.g. B. acrylic or Methacrylic acid, olefinically unsaturated dicarboxylic acids or their anhydrides such as maleic acid, fumaric acid or Maleic anhydride, esters of the above acids, others olefinically unsaturated compounds with polar groups or olefinically unsaturated monomers with more than one C-C double bond such as butadiene, isoprene, cyclopentadiene or Dicyclopentadiene and derivatives thereof.
Bevorzugt setzt man Polyethylen, Polypropylen oder Mischpolymerisate, die überwiegend Ethylen oder Propylen einpolymerisiert enthalten, wie z. B. EPDM oder dergleichen, ein. Eine weitere bevorzugte Form ist die Verwendung von Polyolefinen unterschiedlichen Molekulargewichts. So können z. B. hochmolekulare Polypropylen-Mischpolymerisate zusammen mit Polyethylen niedrigen Molekulargewichts eingesetzt werden.It is preferred to use polyethylene, polypropylene or Copolymers that are predominantly ethylene or propylene polymerized contain such. B. EPDM or the like, on. Another preferred form is the use of Polyolefins of different molecular weights. So can e.g. B. high molecular polypropylene copolymers together with Low molecular weight polyethylene can be used.
Für Lebensmittel- und Getränkeverpackungen verwendet man bevorzugt Polypropylen oder Mischpolymerisate des Propylens bzw. Gemische, die überwiegend die vorgenannten Polymeren enthalten.One uses for food and beverage packaging preferably polypropylene or copolymers of propylene or Mixtures which predominantly contain the aforementioned polymers.
Die erfindungsgemäßen Dichtungsmassen können Füll- oder Verstärkerstoffe, bevorzugt auf anorganischer oder mineralischer Basis, enthalten. Dazu gehören solche auf Basis von Silikaten oder Alumosilikaten, Kaolin, Kreide, China-Clay (Tonerde), Talkum, oder auch Glas. Bevorzugt setzt man Füllstoffe mit kugelähnlicher Form ein, z. B. Glaskugeln eines Durchmessers unter 50 µm, besonders solche unter 25 µm, insbesondere mit Durchmessern zwischen 5 µm und 15 µm.The sealing compounds according to the invention can be filled or Reinforcing materials, preferably inorganic or mineral Base, included. These include those based on silicates or aluminosilicates, kaolin, chalk, china clay (clay), Talc, or glass. Fillers are preferably used spherical shape, e.g. B. glass balls of a diameter below 50 µm, especially those below 25 µm, especially with Diameters between 5 µm and 15 µm.
Die erfindungsgemäßen Dichtungsmassen können solche Füll- oder Verstärkerstoffe in Anteilen, jeweils bezogen auf 100 Gew. Teile Polymerisat, unter 500 Gew. Teilen, bevorzugt unter 300 Gew. Teilen, insbesondere zwischen 40 und 150 Gew. Teilen enthalten.The sealants according to the invention can fill or Reinforcing substances in proportions, each based on 100 parts by weight Polymer, less than 500 parts by weight, preferably less than 300 parts by weight. Parts, especially between 40 and 150 parts by weight.
Ferner können die erfindungsgemäßen Dichtungsmassen Substanzen enthalten, die das Verformen unter Wärme und Druck erleichtern. Dazu ist eine Vielzahl von Substanzen prinzipiell geeignet; bevorzugt werden Weichmacher wie Weißöle, Paraffinöle, niedermolekulare Polymere, die mit den oben genannten Polymerisaten zumindest partiell verträglich sind, wie z. B. Polyethylenwachs, Fettsäureester langkettiger Carbonsäuren und/oder Alkohole und/oder andere Verbindungen mit aliphatischen Ketten mit 6 bis 20 C-Atomen verwendet.The sealing compounds according to the invention can also contain substances contain, which facilitate the deformation under heat and pressure. In principle, a large number of substances are suitable for this; plasticizers such as white oils, paraffin oils, low molecular weight polymers with the above Polymers are at least partially compatible, such as. B. Polyethylene wax, fatty acid ester of long-chain carboxylic acids and / or alcohols and / or other compounds with aliphatic Chains with 6 to 20 carbon atoms are used.
Weiterhin können die erfindungsgemäßen Dichtungsmassen weitere Additive enthalten wie Alterungsschutzmittel, Antioxidantien, innere oder äußere Gleitmittel, oder Mittel, die die Haftung zwischen den zu dichtenden Teilen, z. B. zwischen Dosen und Deckeln verbessern. Diese Zusätze werden in der Regel in Mengen unter 3 Gew. Teilen, bezogen auf 100 Gew. Teile Polymerisat eingesetzt, bevorzugt unter 1 Gew. Teil.Furthermore, the sealing compounds according to the invention can be further Contain additives such as anti-aging agents, antioxidants, internal or external lubricants, or agents that increase liability between the parts to be sealed, e.g. B. between cans and Improve lids. These additives are usually in quantities below 3 parts by weight, based on 100 parts by weight of polymer used, preferably less than 1 part by weight.
Die erfindungsgemäßen Dichtungsmassen zeigen dem Stand der Technik gegenüber eine große Überlegenheit:The sealing compounds according to the invention show the state of the Technology over great superiority:
- - Sie sind bei weitem einfacher zu transportieren und zu lagern, da sie meist in Form von Pellets geliefert werden,- They are far easier to transport and to store, as they are usually supplied in the form of pellets,
- - eine Aufbereitung außer dem Erweichen ist nicht notwendig; mögliche Fehlerquellen bei mangelhaftem Aufrühren oder Temperieren, wie beim Stand der Technik, entfallen,- preparation other than softening is not necessary; possible sources of error in the event of poor stirring or Tempering, as in the prior art, is eliminated,
- - sie stellen kein Gefahrgut dar, sie sind nicht frostempfindlich,- they are not dangerous goods, they are not sensitive to frost,
- - es fallen keine Rückführungskosten für Tanks oder Tankzüge an,- There are no return costs for tanks or tank trucks at,
- - es ist kein Aufrühren und keine Aufbereitung der Dichtungsmasse erforderlich, das Reinigen von Aggregaten entfällt, es gibt kein Abwasserproblem nach dem Reinigen.- there is no stirring and no preparation of the Sealant required, cleaning aggregates not applicable, there is no wastewater problem after cleaning.
Die mit den erfindungsgemäßen Massen hergestellten DichtungenThe seals produced with the compositions according to the invention
- - erfordern keine Trocknung, keine Öfen, keine Zwischenlagerung,- do not require drying, no ovens, none Interim storage,
- - zeigen keine Über- oder Unterlappung, haben ein gleichmäßiges Filmgewicht.- show no overlap or underlap, have one even film weight.
Ein weiterer Vorteil der erfindungsgemäßen Dichtungsmassen liegt darin, daß die bei Verwendung bekannter Massen insbesondere im Rumpfhakenradius von Metallverpackungen, z. B. Getränkedosen auftretende Korrosion verhindert wird. Dadurch wird vermieden, daß Eisen (im Falle von Weißblechdosen) bzw. Aluminium (im Falle von Aluminiumdosen) in die Umgebung austritt.Another advantage of the sealing compounds according to the invention is in that when using known masses, especially in Fuselage hook radius of metal packaging, e.g. B. beverage cans corrosion is prevented. This will avoid that iron (in the case of tin cans) or aluminum (in the case of of aluminum cans) escapes into the environment.
Dichtungsmassen nach dem Stand der Technik sind lebensmittelrechtlich nur unter Voraussetzung der "No Contact Theorie" zugelassen, d. h. sie sollen bei bestimmungsgemäßer Verwendung nicht mit dem Füllgut in Kontakt kommen. Die erfindungsgemäßen Dichtungsmassen sind zusammengesetzt aus Stoffen, die als Bestandteil von Lebensmittelverpackungen mit den Füllgütern in Kontakt kommen dürfen.Sealing compounds according to the prior art food law only under the condition of "No Contact Theory ", i.e. they should be Use do not come into contact with the contents. The Sealants according to the invention are composed of Substances used as part of food packaging may come into contact with the filling goods.
Claims (13)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995102833 DE19502833A1 (en) | 1995-01-30 | 1995-01-30 | Sealants for packaging, in particular metal packaging |
PCT/DE1996/000118 WO1996023847A1 (en) | 1995-01-30 | 1996-01-29 | Sealing compounds for packages, especially metal packages |
AU44818/96A AU4481896A (en) | 1995-01-30 | 1996-01-29 | Sealing compounds for packages, especially metal packages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1995102833 DE19502833A1 (en) | 1995-01-30 | 1995-01-30 | Sealants for packaging, in particular metal packaging |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19502833A1 true DE19502833A1 (en) | 1996-08-01 |
Family
ID=7752637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1995102833 Withdrawn DE19502833A1 (en) | 1995-01-30 | 1995-01-30 | Sealants for packaging, in particular metal packaging |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4481896A (en) |
DE (1) | DE19502833A1 (en) |
WO (1) | WO1996023847A1 (en) |
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---|---|---|---|---|
FR1483736A (en) * | 1964-10-28 | 1967-06-09 | Grace W R & Co | Process for producing seals for sealing containers, container closures thus obtained and thermoplastic materials applicable for such seals |
DE2156238A1 (en) * | 1970-11-13 | 1972-05-18 | Grace W R & Co | Plastic sealing compounds and their use for closing food cans |
US4101484A (en) * | 1976-10-04 | 1978-07-18 | Phillips Petroleum Company | Sealant based on thermoplastic elastomer and mixed modifying resins |
US4101482A (en) * | 1976-10-04 | 1978-07-18 | Phillips Petroleum Company | Sealant based on mixture of unsaturated and hydrogenated block copolymers |
DE2818043A1 (en) * | 1977-05-02 | 1978-11-16 | Premier Ind Corp | CAULK |
DE1720114B2 (en) * | 1966-09-30 | 1981-01-22 | W.R. Grace & Co., New York, N.Y. (V.St.A.) | Use of a thermoplastic material for the production of seals for container closures |
DE2258396B2 (en) * | 1972-11-29 | 1981-07-02 | Alfred 5047 Wesseling Krüger | Use of mixtures based on alkyd resins or polyesters as sealing compounds |
DE2635176C2 (en) * | 1976-08-05 | 1982-05-06 | Durol Gmbh & Co Kg Chemische Fabrik Lindau-Bodensee, 8990 Lindau | Curable molding compounds based on chlorosulfonated polyolefins |
DE3414956A1 (en) * | 1983-04-19 | 1984-10-25 | Müanyagipari Kutató Intézet, Budapest | Process for producing thermoplastic elastomer compositions and the use thereof |
DE3329158A1 (en) * | 1983-08-12 | 1985-02-21 | Forbach GmbH, 8740 Bad Neustadt | Coating material for the production of corrosion-protective coatings on metal surfaces |
DE3519053A1 (en) * | 1985-05-28 | 1986-12-18 | W.R. Grace & Co., Cambridge, Mass. | CAULK |
DE3602526A1 (en) * | 1986-01-29 | 1987-07-30 | Henkel Kgaa | JOINT SEALING MATERIAL BASED ON THERMOPLASTIC ELASTOMERS |
US4778831A (en) * | 1984-05-09 | 1988-10-18 | Kunststoff- & Lackfabrik Kemper | Sealing compounds, the preparation thereof, and use of same |
DE3021488C2 (en) * | 1979-06-11 | 1990-01-04 | W.R. Grace & Co., Cambridge, Mass., Us | |
DE9015482U1 (en) * | 1990-11-12 | 1991-01-24 | Poppe & Co Gießener Gummiwarenfabrik GmbH & Co KG, 35392 Gießen | Seal for container closures |
DE4100120A1 (en) * | 1991-01-04 | 1992-07-09 | Goetze Ag | HIGH TEMPERATURE RESISTANT THERMOPLASTIC ELASTOMER |
EP0556451A1 (en) * | 1992-02-19 | 1993-08-25 | Hughes Aircraft Company | Frozen premix, fillet-holding urethane adhesives/sealants |
EP0561110A1 (en) * | 1992-03-19 | 1993-09-22 | Hüls Aktiengesellschaft | Recyclable protective and sealing material based on compounds of high molecular weight, partially crystalline copolyesters |
EP0603716A1 (en) * | 1992-12-18 | 1994-06-29 | Tremco Incorporated | Fast-curing, high strength, two-part sealants using acetoacetate-amine cure chemistry |
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GB1112025A (en) * | 1964-10-28 | 1968-05-01 | Grace W R & Co | Method of forming container closure sealing gaskets |
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DE3620690C2 (en) * | 1986-06-20 | 1994-02-17 | Ds Chemie Gmbh | Sealing element |
GB8803062D0 (en) * | 1988-02-10 | 1988-03-09 | Grace W R & Co | Sealed containers & sealing compositions for them |
GB9021167D0 (en) * | 1990-09-28 | 1990-11-14 | Grace W R & Co | Container closures and processes of making them |
-
1995
- 1995-01-30 DE DE1995102833 patent/DE19502833A1/en not_active Withdrawn
-
1996
- 1996-01-29 AU AU44818/96A patent/AU4481896A/en not_active Abandoned
- 1996-01-29 WO PCT/DE1996/000118 patent/WO1996023847A1/en active Application Filing
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FR1483736A (en) * | 1964-10-28 | 1967-06-09 | Grace W R & Co | Process for producing seals for sealing containers, container closures thus obtained and thermoplastic materials applicable for such seals |
DE1720114B2 (en) * | 1966-09-30 | 1981-01-22 | W.R. Grace & Co., New York, N.Y. (V.St.A.) | Use of a thermoplastic material for the production of seals for container closures |
DE2156238A1 (en) * | 1970-11-13 | 1972-05-18 | Grace W R & Co | Plastic sealing compounds and their use for closing food cans |
DE2258396B2 (en) * | 1972-11-29 | 1981-07-02 | Alfred 5047 Wesseling Krüger | Use of mixtures based on alkyd resins or polyesters as sealing compounds |
DE2635176C2 (en) * | 1976-08-05 | 1982-05-06 | Durol Gmbh & Co Kg Chemische Fabrik Lindau-Bodensee, 8990 Lindau | Curable molding compounds based on chlorosulfonated polyolefins |
US4101484A (en) * | 1976-10-04 | 1978-07-18 | Phillips Petroleum Company | Sealant based on thermoplastic elastomer and mixed modifying resins |
US4101482A (en) * | 1976-10-04 | 1978-07-18 | Phillips Petroleum Company | Sealant based on mixture of unsaturated and hydrogenated block copolymers |
DE2818043A1 (en) * | 1977-05-02 | 1978-11-16 | Premier Ind Corp | CAULK |
DE3021488C2 (en) * | 1979-06-11 | 1990-01-04 | W.R. Grace & Co., Cambridge, Mass., Us | |
DE3414956A1 (en) * | 1983-04-19 | 1984-10-25 | Müanyagipari Kutató Intézet, Budapest | Process for producing thermoplastic elastomer compositions and the use thereof |
DE3329158A1 (en) * | 1983-08-12 | 1985-02-21 | Forbach GmbH, 8740 Bad Neustadt | Coating material for the production of corrosion-protective coatings on metal surfaces |
US4778831A (en) * | 1984-05-09 | 1988-10-18 | Kunststoff- & Lackfabrik Kemper | Sealing compounds, the preparation thereof, and use of same |
DE3519053A1 (en) * | 1985-05-28 | 1986-12-18 | W.R. Grace & Co., Cambridge, Mass. | CAULK |
DE3602526A1 (en) * | 1986-01-29 | 1987-07-30 | Henkel Kgaa | JOINT SEALING MATERIAL BASED ON THERMOPLASTIC ELASTOMERS |
DE9015482U1 (en) * | 1990-11-12 | 1991-01-24 | Poppe & Co Gießener Gummiwarenfabrik GmbH & Co KG, 35392 Gießen | Seal for container closures |
DE4100120A1 (en) * | 1991-01-04 | 1992-07-09 | Goetze Ag | HIGH TEMPERATURE RESISTANT THERMOPLASTIC ELASTOMER |
EP0556451A1 (en) * | 1992-02-19 | 1993-08-25 | Hughes Aircraft Company | Frozen premix, fillet-holding urethane adhesives/sealants |
EP0561110A1 (en) * | 1992-03-19 | 1993-09-22 | Hüls Aktiengesellschaft | Recyclable protective and sealing material based on compounds of high molecular weight, partially crystalline copolyesters |
DE4208823A1 (en) * | 1992-03-19 | 1993-09-23 | Huels Chemische Werke Ag | RECYCLABLE PROTECTIVE AND SEALING MATERIALS BASED ON A COMPOUND OF HIGH MOLECULAR, PARTIAL CRYSTALLINE COPOLYESTERS |
EP0603716A1 (en) * | 1992-12-18 | 1994-06-29 | Tremco Incorporated | Fast-curing, high strength, two-part sealants using acetoacetate-amine cure chemistry |
Non-Patent Citations (6)
Title |
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Derwent Abstracts: Ref. 92-120236/15 zu J04063888-A * |
Ref. 86-339573/52 zu J61276839-A * |
Ref. 88-108882/16 zu J63057662-A * |
Ref. 88-365932/51 zu JP63277257-A * |
Ref. 89-096223/13 zu JP01043547-A * |
Ref. 89-118933/16 zu JP01065149-A * |
Also Published As
Publication number | Publication date |
---|---|
WO1996023847A1 (en) | 1996-08-08 |
AU4481896A (en) | 1996-08-21 |
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