DE19721731C1 - Joining plastic film with a release agent on the surface to a metal foil and resulting multilayer material - Google Patents

Abstract

A liquid polymer (1P) is applied onto a plastic film (FK) to produce a polymer film with a thickness greater than the depth of roughness of the plastic film surface and then dried. A solvent applied to the dried polymer layer (SZ) effects swelling of this layer and the metal foil and swollen layer are pressed together to effect a bond. An Independent claim is also made for the multilayer material. Preferred Features: The coating polymer (1P) or copolymer (2P) are applied to the plastic film (FK) in a theta-solvent which prepares the plastic film surface (FO) for the bonding stage. A polymer film (F) can be applied to both sides of the plastic film, the polymer thickness being 5-10 microns. Application of the polymer film and/or solvent is by roller coating, spraying, screen printing or casting. Bond strength between the plastic and polymer film layers is >= 20 N/cm.

Description

The invention relates to a method for connecting at least one thermoplastic film, the Foil surface with lubricants and / or release agents is enriched, and at least one metal foil.

In the manufacture of thermoplastic films Additives such as lubricants and / or release agents for reduction adhesion to itself or other materials Prevention of unwanted glue used. A part due to its insolubility, these additives migrate into the plastic to the surface, so that between neighboring Surfaces no bond is created.

The lubricants and release agents are in organic solvents soluble, so that in practice when laminating thermoplastic films, such as calender films or cast films, with the help of pure solvents as laminating agents Problem occurs that the foils are bad with each other connect and the adhesive strength of the composite is low.

In the production of flexible chip cards or so-called printed circuits, in addition to the laminating ability high metal adhesion of the metal pad to form flat cables, components etc. on the Plastic film required as insulation carrier.  

The disadvantage is that they lead unevenly on the film surface distributed lubricants and release agents to a different strong adhesion, therefore there are foils coated with metal not storable for a longer period and only to a limited extent transportable, but must be as quick as possible to be processed further.

There are general procedures for making one Plastic-metal composite known in which the Plastic film and the metal foil under the influence of heat and Pressure, for example, is combined in a calender.

The plastic-metal composite forms because of the strong different coefficients of thermal expansion of the Materials a "bimetal", so the cooling is the heat-laminated film disadvantageous with a film warp connected. Warm laminated foils with a metal surface are due to the "bimetal effect" for use in the Microelectronics not suitable.

Furthermore, are used to produce fixed connections Plastics and other materials plastic bonding process used, the bondability using solvent Glue strongly on the polarity of the to be connected Materials, their wetting behavior and the possibility of Training of liability workers depends. Non-polar materials cannot be done with physically setting adhesives or difficult after an elaborate surface treatment, such as oxidation or pickling.

The use of organic solvents, especially in strong concentrations, is from ecological, from a health and economic point of view, therefore undesirable the request is made to keep the quantities as small as possible Use solvents.  

The invention further relates to a multi-layer material in the form a film-shaped semi-finished product with at least one thermoplastic plastic film, the film surface with Lubricants and / or release agents is enriched, and at least a metal foil.

Based on the state of the art, it is the task of Invention, a method for connecting a plastic film to reveal with a metal foil, with which under Avoiding the disadvantages described a composite film for microelectronics simple, efficient and inexpensive can be produced, the bond between adjacent Layers is permanently unsolvable and the composite film one has high metal adhesion and good lamination ability.

Another object of the invention is to provide a Multi-layer material with a plastic and metal foil too create what a lasting durability as well as against Environmental impact is insensitive and high Strength of the bond and good adhesion of the metal layer on the plastic film.

The procedural task is accomplished according to the invention by solved the features of claim 1. In the Subclaims 2 to 14 are further advantageous Embodiments of the method according to the invention are shown. Claim 15 solves the object, wherein further advantageous developments of the invention Multilayer material are specified in the subclaims.

In the inventive method for connecting at least one thermoplastic film, the Foil surface enriched with lubricants and release agents is, and at least one metal foil, is on the Plastic film a similar or related to this lubricant and release agent-free polymer, copolymer or polymer  Blend in liquid form as a polymer film with a Layer thickness greater than the roughness depth of the film surface applied and then the one forming a polymer layer Polymer film dried on the plastic film. Subsequently the polymer layer is applied to the layer surface swollen solvent before the swollen Layer surface pressed with the metal foil under pressure and is source welded. This wet lamination of the two Foils using only pressure has the advantage that there is no film distortion during lamination.

The application of a lubricant and release agent free Polymer layer from a to the material of the plastic film identical or related polymer, copolymer or polymer Blend on the film with lubricants and release agents Surface is a primer with which a suitable Created a base for the application of a metal pad and the surface of the one at least in some areas Plastic coating with a metal coating for a Further processing, possibly lamination with a Plastic film being prepared.

The layer thickness of the polymer layer is advantageously greater than the surface roughness of the film surface, so that the Polymer layer completely covers the film surface and thus sealed. A firm, stable bond between the plastic film and those to be connected Materials, such as metals or plastics, annoying lubricants and release agents are then selectively on the Interfaces of the plastic film as the core layer and the Polymer layer embedded as an intermediate layer. This has the Advantage that the lubricants and release agents the formation of Do not hinder binding forces and despite their presence high adhesive forces between the adjacent interfaces prevail, making the connection permanent as well becomes non-destructible.  

Good adhesion of the metal coating is also advantageous scored on the plastic film. The metal coated Plastic film can be stored for up to several years without adverse changes in the environment Properties of the metal-coated plastic film and the Further processability, in particular the laminability, cause. Also the metal-coated plastic film easily transportable.

The introduction of the polymer layer leads to a considerable Reduction of the amount of solvents when laminating the Metal foil on the plastic film. Furthermore, the Contact times of the solvent on the surface are shorter because the swelling of the lubricant- and release agent-free layer Surface runs faster and to achieve a safe Connection a lower penetration depth of the solvent the surface is required. This means that the exhaust or drying times to expel the solvent.

Furthermore, the solvent wets the surface evenly, and there are no non-stick zones with one poor, insufficient metal adhesion. A high Metal adhesion is over the entire surface of the plastic film ensures that there will be no replacement of the Metal pad comes off the foil.

Due to the low penetration depth of the solvent Material advantageously occurs no embrittlement Plastic film on and it will wash out the Lubricants, e.g. B. waxes, from the depth of the film in the Connection area reduced.

A separate surface treatment of the Plastic film when connecting to the metal foil, so that  commercially available foils can be processed. The Laminating takes place without the introduction of heat.

In particularly preferred embodiments, the Plastic film as a polymer solution in an organic Solvent-dissolved polymer, copolymer or a mixture thereof applied.

Preferably, the two outer sides of the film with the Provide polymer layer, so with temperature fluctuations there is no warpage of the film and none Form differences in hardness.

The solvents used have the task of To dissolve and swell surfaces, at the same time the Minority ties are loosened; the mode of action is comparable to a solvent adhesive.

There will be a high adhesion of the film surface to the die Polymers and / or copolymers forming polymer layer or to the metal surface and / or a surface of one additional plastic film to be laminated on as a top layer achieved.

With the method according to the invention, in particular Multi-layer materials in the form of film-shaped Semi-finished products for the production of flexible carrier films flat components, cables or the like.

Films made of the mass plastics PVC, PP, PS or PE, or engineering plastics, such as PC, PET, PEN or ABS, processed as the core layer of the semi-finished product. The Intermediate layer consists of a to the plastic film same and / or related polymer, which preferably in an organic solvent or Solvent mixture is present in solution. Depending on that  The material of the plastic film used becomes a Polyvinyl ether, polyvinyl acetate, polyvinyl chloride, Polyaryclate, polyisocyanate, polyolefin, polycarbonate, Polyurethane and / or polyethylene naphthalate as polymer, Copolymer or polymer blend are applied, which in suitable solvents such as esters, ethers, ketones and halonegated, aliphatic or aromatic hydrocarbons are solved.

The metal pad is covered with a metal foil with at least Cu, Ni, Au, Ag, Rh, Al or arranged on the adhesive layer side Like. Formed as a conductor material.

The metal foils preferably have to be connected to them Outside a pretreated surface, so that a high adhesion between the polymer layer and the metal Forms overlay on the plastic film and the metal Liability is increased.

In summary, the method according to the invention stops safe, efficient and inexpensive procedure for Joining at least one thermoplastic Plastic film, the film surface with sliding and / or Release agents is enriched, and at least one Metal foil, with the roll in the continuous process can be worked inexpensively and easily on a roll.

The multilayer material according to the invention is a flexible film which is used as a semifinished product, in particular in microelectronics for the production of chip cards. This multilayer film is made up of at least the three layers named below:

• - Firstly as a thermoplastic film Core layer, which forms the insulating support,
• - Second, one arranged on the core layer Polymer layer made of the same type as the plastic film  and / or related, lubricant and release agent-free polymer and / or copolymer, which function similar to one Adhesive, primer or primer, and
• Thirdly, a metal pad, in particular a metal foil, which after the structuring flat components in form of cables, antennas, capacitors or the like.

The semi-finished product is very good due to the layer structure described easy to store and transport, because between the individual adjacent layers there is a strong, durable bond. The strength between the layers is at least 20 N / cm and the metal adhesion at least 0.25 N / mm preferably 1 to 1.5 N / mm.

The multilayer material according to the invention has due to the uniform properties of the surface of the polymer layer as well as their surface quality, since none of the connections impairing lubricants and release agents are present, a good lamination or lamination ability.

This advantageously also requires a high value for the Metal adhesion of the metal pad on the plastic film what is positive in storage and transportability reflects affects.

The core layer can be on two of the film surfaces Plastic film applied after the procedure Polymer layers have a second metal foil.  

The invention is explained in more detail using the exemplary embodiment shown in FIGS. 1 to 12, with embodiments of the method according to the invention and FIGS. 3 to 12 each schematically showing a material cross section after the different method steps in FIGS. 1 and 2. Show it:

Fig. 1 shows a basic flow diagram of a first embodiment of the method for bonding a plastic film with a metal foil, wherein the multi-layer material according to the preparation of the plastic-metal composite is temporarily stored,

Fig. 2 is a basic flow diagram of a second embodiment of the method for bonding a plastic film with a metal foil, wherein the plastic film is stored with established by structuring components,

Fig. 3 shows a cross section through a plastic film with the surface side enriched lubricants and release agents,

Fig. 4 is a cross sectional view of the plastic film shown in FIG. 3 with an applied polymer film,

Fig. 5 is a cross-section through the plastics film shown in FIG. 4 with applied polymer layer during drying,

Fig. 6 shows a cross section through the plastics film shown in FIG. 5 is again swollen polymer layer,

Fig. 7 is a cross-section through the plastics film shown in FIG. 6 laminated with metal foil, Fig. 8 a section through the plastics film shown in FIG. 7 arranged on the outside devices,

Fig. 9 shows a cross section through a further embodiment of a plastic film on both sides with an applied polymer layer,

Fig. 10 is a cross-section through the plastics film shown in FIG. 9, wherein one of the polymer layers is swelled again,

Fig. 11 is a cross-section through the plastics film shown in FIG. 10, wherein the swollen polymer layer laminated on a metal foil and the other polymer layer is also swollen,

FIG. 12 shows a cross section through the plastic film according to FIG. 11, with components and laminated cover films as a finished product.

In Figs. 1 and 2, the inventive method for joining is a thermoplastic resin sheet (FK) and at least one metal foil ((FM), as well as preferred methods for further processing of the multilayer material of the invention in the form of a sheet-shaped semi-finished product (HF) is shown at least schematically. The process according to the invention is a continuously operating continuous process in which work is carried out from roll to roll, ie the thermoplastic film to be coated is unwound from a roll on the input side and the multilayer material produced is wound up on another roll as a composite film on the output side.

In a first process step (VS), the thermoplastic film (FK) - FIG. 3 - with lubricants and release agents (W) enriched on its surface (FO) with a polymer film (F) made of a similar to the plastic film (FK), coated with lubricant and release agent-free polymer ( 1 P) or similar and related copolymer ( 2 P) or polymer blend. The layer thickness (d) of the polymer film (F) is greater than the roughness of the surface (FO) of the plastic film (FK), so that a uniform, the film surface (FO *) of the plastic film (FK) - Fig. 4 - is achieved.

Suitable methods for applying the polymer film (F) in the first process step (VS1) are roll coating, spraying, Screen printing, pouring, where the polymer solution (LP) is on the specified surfaces (FO) of the plastic film (FK) be applied.

In the polymer solution (LP) there is a polymer ( 1 P) and / or copolymer ( 2 P) based on polymers of vinyl ether, vinyl acetate, vinyl chloride or acrylate in a first solvent (L1). Polyisocyanates, polymer carbonates, polyolefins, polyurethanes, polyethylene naphthalates dissolved in solvents (L1) are also used.

An organic solvent such as ester, ether, ketone, halogenated hydrocarbon, aliphatic hydrocarbon, aromatic hydrocarbon or the like is used as the solvent (L1); solvent mixtures (LG) consisting of them are also suitable, so that the advantageous properties of the individual solvent are combined and targeted effects will be achieved. Particularly suitable solvents (L1) are theta solvents belonging to the polymer ( 1 P) and / or copolymer ( 2 P).

The first solvent (L1) is an "aggressive" Solvent that quickly gets into the film surface (FO) diffused into the plastic film (FK).  

In a second process step (VS2), the moist film surface (FO *) is dried, the polymer film (F) curing simultaneously as a polymer layer (S), since the solvent (L1) evaporates - FIG. 5 -.

Furthermore, the arrangement of the drying devices on the underside means that during drying (VS2) the pores on the moist surface (FO *) are open and the solvent (L1) is brought to the surface for evaporation. The lubricants and release agents (W) are embedded in the plastic film coated with the same or related non-lubricant and release agent-free polymer ( 1 P) and / or copolymer ( 2 P) in such a way that the surface (SO) of the polymer layer (S) is free of lubricants and release agents (W), which means that no faults occur during the subsequent manufacture of the plastic-metal composite and, if applicable, plastic-plastic composite.

After drying (VS2), the plastic film (FK) with the polymer layer (S) is swollen again with a solvent (L2) in a third process step (V53), the solvent (L2) being dissolved by acting on the layer surface (SO) of the polymer ( 1 P) and / or copolymer ( 2 P) is attacked.

The second solvent attacking the polymer layer (S) (L2) appears milder due to the shorter exposure time, because the Polymer layer (S) is only swollen.

In the third process step (VS3), the plastic film (FK) for the connection of the plastic film (FK) with the Prepared metal foil (FM).

In the fourth method step (VS4), the swollen polymer layer (S) of plastic film (FK) one  Laminated metal foil (FM), d. H. before the wet Layer surface (SO *) has dried, the metal foil runs (FM) and the two foils (FK, FM) are under pressure welded and thus source welded.

In one example of the method according to the invention, a polymer solution (PL) with a PVC polymer ( 1 P) which is free of lubricants and release agents is applied to a PVC film (FK) on at least one side in an application device, such as a casting machine, roller coater or the like VC copolymer ( 2 P), like VC / VAC copolymer, in a first solvent (L1), preferably aliphatic ketone compound, as the polymer layer (S) forming polymer film (F) with a layer thickness (d) applied greater than the surface roughness of the film surface (FO) and then the PVC film (FK) dried.

Then the polymer layer (S) by a on the Layer solvent (SO) acting second solvent (L2), such as aromatic ketone compound, swelled, the second solvent sprayed, poured, printed or is applied by roller application. Finally the swollen layer surface (SO) of the PVC film (FK) with a copper foil (FM), for example in a calender, under Pressure pressed, so that the foils are welded together are.

The multilayer material ( 3 ) produced with the method according to the invention can be further processed as a semi-finished product (HF) depending on the intended use, the semi-finished product (HF) being fed to the processing (W) directly or after an intermediate storage (L). The further processing (W) does not necessarily have to be carried out at the place of manufacture of the semi-finished product (HF), but the semi-finished product (HF) can also be processed very well at any other location due to its good storage and transportability.

In the method according to the invention according to FIG. 1, the multilayer material ( 3 ) is processed further after an intermediate storage (L) to form a flexible film which is constructed according to FIG. 8 or 12. For this purpose, a part of the metal foil (FM) is removed from the plastic film (FK) in a first further processing step (WS1), for example flat components, such as cables, antennas, capacitors, resistors or the like, in the manner of a so-called printed circuit by photo structuring or laser structuring. The plastic film (FK) with the surface components (BM) is then fed to a dry lamination in a second processing step (WS2), in which a cover film (FK2) made of a plastic film is applied to the plastic film (FK) with the applied polymer layer (S) (FK) identical or related polymer (P1) and / or copolymer (P2) is laminated or laminated. The composite film (VP) thus produced is, for example, printed in a subsequent finishing process (ES) and punched into the desired finished parts such as chip cards (FT).

1 Fig. 2 shows in comparison to the inventive method according to Fig., A method in which multi-layer material (3) according to the invention the further processing (W) is fed directly, where in a first processing step (WS1), a part of the metal foil (FM ) is removed from the plastic film (FK) to form a metal layer (AM) in certain areas. This plastic film (FK) with the metal layer (AM) is stored as an intermediate product ( 4 ) before it is processed further. For example, in a further processing step (WS2) on the top (OS) of the plastic film (FK) with the applied polymer layer (F) and the metal layer (AM) in a dry lamination a cover film (FK2) from a to the plastic film (FK) Same or related polymer ( 1 P) or copolymer ( 2 P) applied as a top layer (SD) (see FIGS. 8 and 12). This composite film (VF) is also regularly subjected to a finishing process (Es).

In a further embodiment of the invention Procedure (not shown) is based on the two Foil surfaces (FO) of the plastic film (KF) each Polymer film (F) applied and possibly also on both sides Laminated metal foil (FM). There is also the possibility a metal foil (FM) with metal areas in sections to apply.

The structure of the multilayer material ( 3 ) according to the invention is explained on the basis of the cross sections through the plastic film (FK) shown in FIGS. 3 to 12; Layer thicknesses and surface structure shown in the figures do not correspond to the actual circumstances, but are exaggerated for better understanding.

In Fig. 3 is a cross section through a thermoplastic film (FK), preferably made of polyvinyl chloride (hereinafter PVC), polyvinyl acrylate (hereinafter PVAC), polyethylene (hereinafter PE), polypropylene (hereinafter PP), polystyrene (hereinafter PS), polyethylene terephthalate (hereinafter PET), polyethylene naphthalate (hereinafter PEN) or acrylonitrile / buthadiene / styrene copolymer (hereinafter ABS). This plastic film (FK) is either cast, calendered or extruded in order to reduce or change the material to itself or to other materials during the manufacturing process of the plastic film (FK), the polymer (P) are antiblocking agents, lubricants and release agents ( W) added. Because of their insolubility in the polymer (P), these additives migrate to the film surface (FO) during processing and accumulate there. The thickness of the plastic film (FK) is preferably 100 microns to 400 microns.

Fig. 4 shows the plastic film (FK), with one side on the film surface (FO) deposited polymer film (F). The polymer film (F) has a layer thickness (d) which is greater than the roughness depth of the film surface (FO). The layer thickness (d) of the polymer film (F) is at least 5 μm, preferably 10 μm. The additives (W) enriched on the assigned film surface (FO) are then enclosed by the polymers ( 1 P) or copolymers ( 2 P) dissolved in the solvent (L1) or solvent mixture (LG). The surface (FO) of the plastic film (FK) is completely wetted with the polymer film (F).

According to FIG. 5, the layer thickness (d) decreases a little during the second process step (VS2), drying, since the solvent (L1) or solvent mixture (LG) is completely removed from the hardening, forming polymer layer with the help of heat (S ) is driven out. The polymer layer (S) and the plastic film (FK) are physically connected to one another by high adhesive forces. The strength of the bond is at least 20 N / cm.

In FIG. 6, the Kunsstoffolie (FK) to the swollen polymer layer (S *) after the third process step (VS3) is shown. During the next processing step (VS4), part of the solvent (L2) with which the polymer layer (S) was swollen in the third process step (VS3) evaporates. The polymer layer (S *) has a softened surface (SO *) in which the secondary valence bonds between the polymers are loosened, so that in the next process step (VS4) a metal foil (FM) can easily be applied.

Fig. 7 shows the plastic film (FK) with laminated metal foil (FM). This plastic-metal composite is the multilayer material ( 3 ) according to the invention in the form of a film-shaped semi-finished product (HF). The metal foil (FM) or its surface (MO) consists of copper, nickel, silver, gold, rhodium or the like, and thus has conductive properties. The metal foil (FM) has a thickness of 9 µm to 70 µm, for example.

The surface (MO) of the metal foil (FM) is embossed in the moist, swollen layer surface (SO *) of the Polymer layer (S *) so that a kind of toothing or The two layers (SA, SZ) are anchored. Farther there is the possibility, instead of a solid metal foil (FM) a foil with a metal layer (AM) or with metal layer provided on the film surface to use.

The multilayer material ( 3 ) according to the invention has at least three layers,

• 1. from a plastic film (FK) as a core layer (SK),
• 2. a polymer layer (S) as an intermediate layer (SZ) and
• 3. a metal foil (FM) as the outer layer.

The neighboring layers (SK, SZ; SZ, SA) are through Source welding joined together.

In Fig. 8, part of the outer layer (SA) of the multilayer material ( 3 ) is removed to form flat components (BM). When structuring the surface (MO) of the metal foil (FM), the major part is removed from the metal layer (AM). Of course, the desired structuring of the surface can also be carried out by printing the components (BM) directly on the swollen layer surface (SO *) of the polymer layer. The plastic film (FK) with the associated polymer layer (S) and the metal layer (MA) in the form of components (BM) form a so-called inlet. By removing (WS1) part of the metal foil (FM), the layer surface (SO) of the polymer layer (S) is exposed again as an inlet surface (IO), after which another plastic foil (FK2) can be laminated onto it as a cover foil. The cover film (FK2) then forms a cover layer (SD) covering the components (BM) (shown in broken lines). The cover film has a high affinity for the plastic film (FK) and / or the polymer layer (S). It therefore consists of an identical or related polymer ( 1 P) and / or copolymer ( 2 P). Cover foils can be used, the surfaces of which are also enriched with lubricants and release agents (W).

Fig. 9 shows a plastic film (FK), the two surfaces (FO) with which the polymer layer (S) forming polymer ( 1 P) and / or copolymer ( 2 P) are coated, so that a uniform layer structure is formed. The lubricants and release agents (W) arranged on the surfaces of the plastic film (FK) are thus harmless for the formation of the plastic-metal or plastic-plastic composite.

In the cross section shown in FIG. 10 One of the two shift surfaces (SO) is swelled the polymer layers (S). As can be seen in FIG. 11, the metal foil (FM) is laminated onto the swollen layer surface (SO *) of the polymer layer (S *). After this lamination, the other remaining polymer layer is also swollen with the help of a solvent (L2) in order to prepare the same for a further connection.

The composite sheet of Fig. 12 then consists of an Inlet (I) with the plastic film (FK) as the core layer (SK), on both sides of a polymer layer (S) an intermediate layer (SZ), wherein one of the two polymer layers (S) a carrier for the Metal support (AM) in the form of components (BM). Cover layers (SD) made of a further plastic film (FK2) are laminated or laminated onto this inlet (I) constructed in this way. The composite film (VS) made of the multilayer material ( 3 ) according to the invention can be punched into sheets or plates in a final processing (Es) and printed with information.

Claims (21)

1. A method for connecting at least one thermoplastic film (FK), the film surface (FO) of which is enriched with lubricants and / or release agents (W), and at least one metal film (FM), in which
first on the plastic film (FK) a lubricant and release agent-free polymer ( 1 P) of the same type as the plastic film (FK) in liquid form as polymer film (F) with a layer thickness (d) greater than the roughness depth of the film surface ( FO) is applied and then the polymer film (F) forming a polymer layer (S) is dried on the plastic film (FK),
then the polymer layer (S) is swollen by a solvent (L2) acting on the layer surface (SO) and
Finally, the swollen layer surface (SO *) of the plastic film (FK) is pressed with the metal film (FM) under pressure (p) and is source-welded. 2. The method according to claim 1, characterized in that a polymer ( 1 P) dissolved in an organic solvent (L1) is applied to the plastic film (FK), the solvent (L1) the film surface (FO) of the plastic film ( FM) prepared for connection to the polymer ( 1 P). 3. The method according to claim 1, characterized in that on the plastic film (FK) a in a solvent (L1) dissolved copolymer ( 2 P) is applied, which is the same or related to the plastic film (FK), the solvent ( L1) prepares the film surface (FO) of the plastic film (FM) for connection to the polymer ( 1 P). 4. The method according to one or more of claims 1 to 3, characterized in that the polymer ( 1 P) and / or copolymer ( 2 P) are present in a solvent mixture (LG) as a polymer solution (LP). 5. The method according to one or more of claims 1 to 4, characterized in that the polymer ( 1 P) and / or copolymer ( 2 P) are dissolved in their corresponding theta solvent. 6. The method according to one or more of claims 1 to 5, characterized in that on the plastic film (KF) a polymer film (F) is applied to both sides. 7. The method according to one or more of claims 1 to 6, characterized in that on the swollen layer Surface (SO *) of the polymer layer (S) from the plastic film (FK) a metal foil (FM) with sections Metal areas is applied. 8. The method according to one or more of claims 1 to 7, characterized in that the layer thickness (d) of the polymer Film (F) at least 5 microns, preferably at most 10 microns is. 9. The method according to one or more of claims 1 to 8, characterized in that the polymer film (F) and / or the associated solvent (L1, L2) by roller coating, Spraying, screen printing, pouring or the like on the appropriate surfaces (FO, SO) are applied. 10. The method according to one or more of claims 1 to 9, characterized in that the layer surface (SO *) of the swollen polymer layer (S) (S *) applied to the plastic film (FK), each with a cover film ( FK2) is laminated from a polymer ( 1 P) or copolymer ( 2 P) of the same type or related to the plastic film (FK) as a cover layer (SD). 11. The method according to one or more of claims 1 to 10, characterized in that the plastic film (FK) PVC, PC, PVAC, PE, PP, PS, PEN, PET or ABS. 12. The method according to one or more of claims 1 to 11, characterized in that the metal foil (FM) or whose surface (MO) consists of Cu, Ni, Au, Ag, Rh or Al. 13. The method according to one or more of claims 1 to 11, characterized in that the polymer ( 1 P) and / or copolymer ( 2 P) in an associated solvent (L1) or solvent mixture (LG) as a polymer solution (LP) with to the plastic film (FK) of the same type and / or related homopolyomers and / or copolymers based on vinyl acetates, vinyl chlorides, acrylates, olefins, carbonates, isocyanates, urethanes or naphthalates. 14. The method according to one or more of claims 1 to 13, characterized in that as a solvent (L1, L2) or Solvent mixture (LG) an organic solvent such as Esters, ethers, ketones, chlorinated halogenated Hydrocarbon, aliphatic hydrocarbon or aromatic hydrocarbon is used. 15. Multi-layer material in the form of a film-shaped semi-finished product with at least one thermoplastic film (FK), the film surface (OF) of which is enriched with lubricants and / or release agents (W), and at least one metal film (FM), in particular according to one Method of claims 1 to 16, characterized in that it has at least three layers of a plastic film (FK) as the core layer (SK), a polymer layer (S) made of a sliding and / or related type of the plastic film (FK). and release agent-free polymer ( 1 P) and / or copolymer ( 2 P) with a layer thickness (d) greater than the roughness depth (t) of the film surface (OF) as an intermediate layer (SZ) and a metal foil (FM) as an outer layer (SA ) is constructed, the adjacent layers SZ and SA being connected to one another by source welding. 16. Multi-layer material according to claim 15, characterized in that the plastic film (FK) has an intermediate layer (SZ) on both sides made of the polymer ( 1 P) or copolymer ( 2 P). 17. Multi-layer material according to one of claims 15 or 16, characterized in that the outer layer (SA) for formation of flat components (BM) according to the so-called printed circuits, such as resistors, antennas, Capacitors or coils are partially worn out. 18. Multi-layer material according to claim 17, characterized characterized in that the plastic film (FK) with one or polymer layer on both sides (S *) together with flat Components (BM) forms an inlet (I) on the polymer-coated surface (s) (IO) each have a cover film (FK2) is laminated as a cover layer (SD). 19. Multi-layer material according to claim 18, characterized in that the cover film (FK2) consists of a polymer film (FK) and / or the polymer layer (S) of the same kind or related polymer ( 1 P) or copolymer ( 2 P) whose surfaces may be enriched with lubricants and / or release agents (W). 20. Multi-layer material according to one or more of the Claims 15 to 19, characterized in that between the adjacent layers (SK, SZ; SZ, SA; SK, SD; SA, SD) die Adhesive strength is at least 20 N / cm. 21. Multi-layer material according to one or more of the Claims 15 to 20, characterized in that between the Intermediate layer (SZ) in the form of the polymer layer (S) and the Outer layer (SA) in the form of the metal foil (FM) Adhesive strength at least 0.25 N / mm, preferably 1 to 1.5 N / mm.