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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
  • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
  • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
  • B65D75/325—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil
  • B65D75/326—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil and forming one compartment
• • 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
  • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
  • B65D65/38—Packaging materials of special type or form
• • 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
  • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
  • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
  • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
  • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
  • B65D75/325—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil
  • B65D75/327—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet being recessed, and the other being a flat not- rigid sheet, e.g. puncturable or peelable foil and forming several compartments
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
  • Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
  • Y10T428/254—Polymeric or resinous material
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/31909—Next to second addition polymer from unsaturated monomers

Definitions

• the invention relates to a push-through film for tamper-proof Covering product carriers, such as those of a variety of so-called blister packs are known.
• Such known films for blister covers exist so far made of aluminum foils, plastic-coated aluminum foils down to pure transparent or opaque plastic films. These foils form the counterpart to the product carrier or the So-called lower part of the packaging, which in turn consists of a
• a variety of materials can be formed, for example a stable layer of cardboard, one adapted to the shape of the goods Plastic or aluminum shell or the like.
• foils as cover for such packaging either uses aluminum foil, like this especially when packaging pharmaceutical Products such as Tablets, ampoules or capsules, the Case is, or there was one in the lower part of the packaging Removal option provided.
• the object of the present invention is to provide a film for tamper-proof To create covers for product carriers, which can be made of plastic and still the well-known Penetration properties of aluminum foil covers shows.
• the film is an unstretched film with a plastic matrix, the latter polyolefins, polyester, Polystyrene or styrene copolymers, and one particulate filler in an amount of 20 to 60% by weight contains, the filler having an average particle size (measured over the largest dimension of the particle) of approx. 5 ⁇ m has up to about 100 microns and is selected so that the puncture resistance the film below a limit of approx. 200 N / mm (measured on a 150 ⁇ m thick film, measurement method according to DIN 53 373) is reduced.
• the filler having an average particle size (measured over the largest dimension of the particle) of approx. 5 ⁇ m has up to about 100 microns and is selected so that the puncture resistance the film below a limit of approx. 200 N / mm (measured on a 150 ⁇ m thick film, measurement method according to DIN 53 373) is reduced.
• This limit applies to approximately 150 ⁇ m thick foils. For clearly thinner or thicker foils can be used from these values derive corresponding limit values. At the specified limit it is possible to print insensitive goods through the cover film of the product carrier, even if with some effort. With more sensitive products you will preferably a lower puncture resistance limit choose, and this value is then preferably approx. 100 to approx. 200 N / mm. Like lower puncture resistance recommended in individual cases where goods are very sensitive to pressure are packed. However, it should be noted that naturally with the reduction in puncture resistance also the protective effect of the packaging against damage to the Goods themselves decreases, so that in the range given above from approx. 100 to approx. 200 N / mm in many cases Optimal can be seen.
• tear resistance determines the effort required which is necessary to continue with a film that has been pierced to tear open and thus release the product.
• This too Property can be determined by the choice of the filler and its Affect share in the plastic matrix, being here preferably a tear strength of less than 30 N. (Measurement method according to DIN 53363) is aimed for. This numerical value applies in particular to approximately 150 ⁇ m thick foils, but can be used in essential also on much thinner or thicker foils apply.
• One for handling, especially pressure sensitive ones Goods, acceptable value of tear resistance lies between approx. 2 to 12 N, whereby here again, please note is that of course much lower values are possible are, but with regard to the protection of the goods through the film there are limits to any reduction.
• a preferred one The tear resistance range is in the range from 3 to 4 N.
• the film according to the invention contains the filler as homogeneous Addition to an already fully polymerized plastic material. So the filler won't - like this related with filler-reinforced plastics is known - in the polymerization reaction mixture of monomer and / or Dispersed prepolymer and during the curing of the reaction mixture built into the plastic matrix. Of course but it is conceivable, such reinforced plastic material also as a plastic matrix in certain applications use in connection with the present invention.
• fillers for the fillers in the film to disposal. These can consist of inorganic and / or organic substances can be selected.
• organic substances are e.g. halogenated hydrocarbon polymers, especially PTFE, polyether sulfones, which like the PTFE has a fixed point of> 300 ° C exhibit, as well as thermosetting plastics.
• halogenated hydrocarbon polymers especially PTFE, polyether sulfones, which like the PTFE has a fixed point of> 300 ° C exhibit, as well as thermosetting plastics.
• PTFE polyether sulfones, which like the PTFE has a fixed point of> 300 ° C exhibit, as well as thermosetting plastics.
• halogenated hydrocarbon polymers especially PTFE, polyether sulfones, which like the PTFE has a fixed point of> 300 ° C exhibit, as well as thermosetting plastics.
• the organic Substances that are to serve as fillers are important that these are in the processing of the plastic matrix material, occur at temperatures of 220 ° C and more can not liquefy and then using a homogene
• the substance can be selected from the range of silicon dioxide, in particular in the form of glass or quartz, silicates, in particular in the form of talc, titanates, TiO 2 , aluminum oxide, kaolin, calcium carbonates, in particular in the form of chalk, Magnesite, MgO, iron oxides, silicon carbides, silicon nitrides, barium sulfate or the like.
• the components to be packed are always the components of the filler Be well considered and its sensitivity on one or the other additive to the polymer matrix.
• the shape of the filler particles is most likely to become granular be, but also platelet-shaped, fibrous or rod-shaped Filler particles are both essentially uniform Form or in a mixture with other forms as filler particles possible.
• the choice of particle size is of course not insignificant also determined by the film layer thickness to be produced. So it will be important to ensure that the average extent of the particles a clear distance from the one to be manufactured Foil thickness holds. Average particle sizes between are preferred 20 ⁇ m and 60 ⁇ m, especially with film thicknesses of 80 ⁇ m up to 100 ⁇ m.
• the filler particles have the lowest possible adhesion to the Have polymer matrix. At least, however, the adhesive forces should between the particles and the filler matrix clearly less than the tensile strength of the matrix itself especially in the case of the inorganic filler particles be careful that these are essentially free of so-called Are adhesion promoters. Such adhesion promoters are commonly used used in the manufacture of filled plastics, but based on the special strength of the material becomes.
• Low-melting agents are particularly suitable as dispersing agents organic substances, which have great wetting ability for the filler.
• Specific examples are low molecular weight polyolefin waxes.
• the dispersing aids are preferably applied to the filler particles before mixed with the granulate of the matrix plastic, especially kneaded.
• the thickness of the film is preferably selected from 20 ⁇ m to approx. 600 ⁇ m, which on the one hand has sufficient stability of the film Ensures protection of the packaged goods and secondly the forces required to open the packaging within the predetermined limits, within which at least pressure-sensitive Were still from the average buyer without problems removed from the packaging by pushing through the cover film can be.
• the film be substantially impermeable to water and steam is trained.
• Preferred polyolefins are seen in polypropylenes.
• the reason for this is the particularly good physical properties of polypropylene, such as a barrier effect for water vapor, transparency etc..
• the average molecular weight of the polymers in the plastic matrix is preferably in the range of about 10,000 to about 300,000 elected.
• the film has two or more layers, the two or Several layers of the film are preferably produced coextruded are.
• an external Foil layer is designed as a sealing layer. This can on the one hand improve the arrest of the cover film serve with the product carrier and can also be used for certain Applications with a special property, such as e.g. a special water vapor impermeability, etc. be.
• the film according to the invention is particularly suitable for production a packaging with one possibly to be packed Goods in the form of adapted lower part as goods carrier and an upper part from the invention and already above described slide.
• the lower part and the upper part preferably manufactured using the same type of plastic, so that you get a single product.
• Such varietal Products are particularly easy to recycle and for them Reusable, which is an optimum in the packaging cycle represents.
• a particularly preferred use of the films according to the invention consists in the packaging of pharmaceuticals, in particular in ampoule, capsule or tablet form.
• a polymer granulate with the filler parts mixed and then extruded or calendered In the first step, a polymer granulate with the filler parts mixed and then extruded or calendered.
• the mixing in particular the homogenization, can be carried out by Kneading according to known methods, in particular twin screw compounding, respectively.
• the individual components can but also mixed together in a dry mixing process become. Better homogeneity, i.e. a more even distribution of the fillers in the polymer matrix upstream production of a so-called compound achieved.
• Treatment of the filler particles with dispersing agents in any case should be mixed with the matrix plastic respectively.
• the compound is melted in the extruder, at melt temperatures of approx. 220 ° C and more as well as with a mass pressure of up to 250 bar.
• the melt is preferably cooled via a chill roll at 20 ° C to approx. 40 ° C, but also other cooling methods, if necessary with a surface treatment composed with corona discharge are possible.
• the foils are then cut and wrapped.
• polypropylene such as. Block copolymers or random copolymers, be used.
• Chalk or talcum is suggested as a filler for this example with an average particle size of 5 to 60 ⁇ m, better still with an average particle size of 20 to 30 microns.
• the proportion of fillers in the total film weight is preferred from 25 to 55% by weight. Below a filler content sufficient embrittlement is not regularly obtained from 20% by weight of the plastic with the associated lowering puncture resistance and tear resistance more. With proportions well over 60% by weight, the Film production difficult and the physical strength values are then often for the typical uses no longer sufficient.
• a puncture resistance of 162 N / mm was achieved on this film and a tear strength of 3.2 N can be measured.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Composite Materials (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Laminated Bodies (AREA)
• Wrappers (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)
• Packages (AREA)
• Cartons (AREA)
• Packaging For Recording Disks (AREA)
• Casting Or Compression Moulding Of Plastics Or The Like (AREA)

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Citations (9)

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• 1992
  • 1992-10-28 DE DE4236450A patent/DE4236450A1/de not_active Withdrawn
• 1993
  • 1993-08-18 ES ES93919084T patent/ES2098771T3/es not_active Expired - Lifetime
  • 1993-08-18 EP EP19930919084 patent/EP0662098B1/fr not_active Expired - Lifetime
  • 1993-08-18 DE DE59305356T patent/DE59305356D1/de not_active Expired - Lifetime
  • 1993-08-18 US US08/416,713 patent/US5932338A/en not_active Expired - Lifetime
  • 1993-08-18 DE DE9320940U patent/DE9320940U1/de not_active Expired - Lifetime
  • 1993-08-18 EP EP19950107067 patent/EP0671432A1/fr not_active Withdrawn
  • 1993-08-18 AT AT93919084T patent/ATE148483T1/de not_active IP Right Cessation
  • 1993-08-18 CZ CZ951007A patent/CZ100795A3/cs unknown
  • 1993-08-18 CA CA 2146649 patent/CA2146649C/fr not_active Expired - Fee Related
  • 1993-08-18 HU HU9500852A patent/HU214848B/hu not_active IP Right Cessation
  • 1993-08-18 DK DK93919084T patent/DK0662098T3/da active
  • 1993-08-18 SK SK527-95A patent/SK282070B6/sk unknown
  • 1993-08-18 PL PL30854893A patent/PL308548A1/xx unknown
  • 1993-08-18 WO PCT/EP1993/002200 patent/WO1994010229A1/fr not_active Ceased
  • 1993-08-18 EP EP19990114241 patent/EP0962485A1/fr not_active Withdrawn
  • 1993-08-18 JP JP51058893A patent/JP2815704B2/ja not_active Expired - Lifetime
  • 1993-10-22 SI SI9300557A patent/SI9300557A/sl unknown
• 1995
  • 1995-04-21 NO NO19951530A patent/NO311433B1/no unknown
• 1997
  • 1997-01-30 GR GR970400099T patent/GR3022432T3/el unknown

Patent Citations (9)

Non-Patent Citations (4)

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