EP3188891A1 - Procédé d'augmentation de l'adhérence entre la première surface d'un premier matériau en forme de bande et une première surface d'un deuxième matériau en forme de bande - Google Patents

Procédé d'augmentation de l'adhérence entre la première surface d'un premier matériau en forme de bande et une première surface d'un deuxième matériau en forme de bande

Info

Publication number
EP3188891A1
EP3188891A1 EP15762520.3A EP15762520A EP3188891A1 EP 3188891 A1 EP3188891 A1 EP 3188891A1 EP 15762520 A EP15762520 A EP 15762520A EP 3188891 A1 EP3188891 A1 EP 3188891A1
Authority
EP
European Patent Office
Prior art keywords
sheet
plasma
substrate
laminating
adhesive
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Withdrawn
Application number
EP15762520.3A
Other languages
German (de)
English (en)
Inventor
Marcel Hähnel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tesa SE
Original Assignee
Tesa SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tesa SE filed Critical Tesa SE
Publication of EP3188891A1 publication Critical patent/EP3188891A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/14—Surface shaping of articles, e.g. embossing; Apparatus therefor by plasma treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/48—Preparation of the surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/14—Surface shaping of articles, e.g. embossing; Apparatus therefor by plasma treatment
    • B29C2059/145—Atmospheric plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/14—Velocity, e.g. feed speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C09J2407/006—Presence of natural rubber in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C09J2407/008—Presence of natural rubber in the pretreated surface to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/008—Presence of (meth)acrylic polymer in the pretreated surface to be joined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/006—Presence of polyurethane in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C09J2475/008—Presence of polyurethane in the pretreated surface to be joined

Definitions

  • the invention relates to a method for increasing the adhesion between the first surface of a first sheet material and a first surface of a second sheet material.
  • the simple physical pretreatment techniques under atmospheric pressure are now used advantageously for the surface treatment of the joining part in order to achieve a higher anchoring force with a self-adhesive tape.
  • pretreatments of the surfaces may be performed. These pretreatments enable or strengthen the intermolecular forces of the joining partners.
  • pretreatments including chemical pretreatment by primer application or physical pretreatment by means of plasma or corona treatment.
  • G. Habenicht, 2009, Springer Verlag, Berlin / Heidelberg gives an introduction to surface treatment: The strength of adhesive bonds or the bond between surface and pressure-sensitive adhesive tape can be strengthened by chemical bridges.
  • organosilicon compounds silanes
  • the chemical primer is applied to the surface prior to application of the pressure-sensitive adhesive tape Since the intermolecular forces between the silane molecules are weak, the bifunctional adhesion promoter reacts below with the adherend surface (polycondensation reaction) and the adhesive molecules of the pressure-sensitive adhesive tape (polyaddition or polymerization reaction tion).
  • the reaction mechanism is shown schematically in the attached figure.
  • Plasma is called the 4th state of matter. It is a partial or fully ionized gas. By supplying energy, positive and negative ions, electrons, other excited states, radicals, electromagnetic radiation and chemical reaction products are generated. Many of these species can cause changes in the surface to be treated. In sum, this treatment leads to an activation of the adherend surface, specifically a higher reactivity.
  • This treatment can be carried out both on the surface of the adherend, as well as on the adhesive. Also, a combination of both treatments is possible. Likewise, this treatment is used to increase the adhesion between the first surface of a first sheet material (eg an adhesive) and a first surface of a second sheet material (eg a backing material).
  • the corona treatment also called corona discharge, takes place as a high-voltage discharge with direct contact to the adherend surface. The discharge converts nitrogen from the ambient air into a reactive form. Due to the impact of the incident electrons, molecular cleavages occur at the adherend surface. The resulting free valences allow attachment of the reaction products of the corona discharge. These deposits allow improved adhesion properties of the adherend surface.
  • This treatment equivalent to the plasma, can take place on the adherend surface, adhesive mass of the pressure-sensitive adhesive tape and combined on both surfaces.
  • Plasma and corona pretreatments are described or mentioned, for example, in DE 2005 027 391 A1 and DE 103 47 025 A1.
  • DE 10 201 1075 470 A1 describes the physical pretreatment of adhesive and carrier / substrate.
  • the pretreatments are carried out separately before the joining step and can be of the same or different design.
  • the two-sided pretreatment achieves higher adhesion and anchoring forces than only substrate pretreatment.
  • DE 27 54 425 A reference is made to DE 24 60 432 A. New arrangements are described for the same task.
  • the plasma is formed between the two lamination rollers, one of which is dielectrically coated.
  • DE 24 60 432 A only the lamination of flat film webs by means of a thermoplastic polymer melt is described.
  • the plasma is formed according to claim 2 between two laminating rollers.
  • the dielectric is formed by at least one moving belt.
  • DE 41 27 723 A1 describes the production of multilayer laminates of plastic film webs and plastic plates, in which at least one joining side is treated with an aerosol corona directly before the joining step. As shown in Figure 1, this flow-driven corona can also be aimed directly at the lamination gap. As aerosol, monomers, dispersions, colloidal systems, emulsions or solutions are considered.
  • the prior art is characterized in that the pretreatments predominantly relate to the carrier material or the joining part in order to build up a higher anchoring force to the adhesive or to the self-adhesive tape.
  • the object of the invention is to find the stated positive effects in physical surface modification of pressure-sensitive adhesives and substrates in order to achieve high-strength compounds.
  • the core of the task is to achieve a high anchorage between the pressure sensitive adhesive layer and the substrate. This object is achieved by a method as shown in the main claim.
  • the subject of the dependent claims are advantageous developments of the subject invention.
  • the invention relates to a method for increasing the adhesion between the self-adhesive surface of a sheet material and a surface of a substrate to which the sheet-like material is to be applied with the self-adhesive surface, wherein The web-like material is fed continuously to a laminating gap, in which the web-shaped material of the self-adhesive surface is laminated to the surface of the substrate,
  • the laminating gap is formed by a pressure element and the substrate and
  • the surface of the pressure element is equipped with a dielectric.
  • the sheet-like material has an adhesive gauge which is disposed in the sheet material so as to be directly laminated to the substrate in direct contact with the ground.
  • Essential to the invention is that the plasma extends to the line where the web-shaped material is laminated to the substrate.
  • the sheet-like material is plasma-laminated to the substrate.
  • any point on the plasma-treated surface of the sheet material and / or the substrate will lay the path from the beginning of the plasma treatment into the laminating gap in a time less than 2.0 s, preferably less than 1, 0 s, more preferably less than 0.5 s. Even times of less than 0.5 s, preferably less than 0.3 s, more preferably less than 0.1 s are possible according to the invention.
  • a second sheet-like material is fed to the laminating gap so that the second sheet-like material lies between the (first) sheet-like material and the substrate.
  • the web direction of the second web-shaped material is the same as that showing the (first) web-shaped material.
  • a multiplicity of further sheet-like materials are fed to the laminating gap in addition to the (first) sheet-like material and the substrate, wherein feeding takes place such that the individual sheet-like materials between the (first) sheet-like material and the substrate into the laminating gap enter.
  • the individual further sheet-like materials are selected so that a non-adhesive carrier layer and a second non-adhesive carrier are never laminated directly to one another in the laminating gap.
  • the laminating gap is formed by a pressure element and the substrate. The pressure element builds up the desired back pressure for lamination.
  • the pressure element is preferably a roller, more preferably with a diameter between 50 to 500 mm, a doctor blade or a pressure plate.
  • the doctor blade or the pressure plate may, for example, have a semi-cylindrical shaped laminating surface.
  • the diameter of the roller or of the semi-cylindrical shaped laminating surface is between 50 and 500 mm.
  • the lateral surface of the rollers or generally the surface of the pressure element is smooth, in particular ground.
  • the surface roughness is preferably R a is less than 50 ⁇ , preferably less than 10 ⁇ .
  • R a is an industry standard unit for surface finish quality and represents the average height of the roughness, in particular the average absolute distance from the centerline of the roughness profile within the evaluation range.
  • the pressure element is unheated.
  • BR butadiene rubbers
  • NBR acrylonitrile-butadiene rubbers
  • NR butyl rubbers
  • EPDM ethylene-propylene-diene rubbers
  • IR polyisoprene rubbers
  • the dielectric encloses the pressure element as the roller firmly, but can be removable, for example in the form of two half-shells.
  • the thickness of the layer of the dielectric on the pressure element is preferably between 1 to 5 mm.
  • the dielectric is not a traveling web, which only partially covers the lateral surface of the pressure element, in particular of the roller.
  • the plasma is generated between one or more nozzles and the pressure element, preferably when operating with compressed air or N2.
  • the plasma treatment takes place at a pressure which is close to (+/- 0.05 bar) or at atmospheric pressure.
  • the plasma treatment may take place in different atmospheres, where the atmosphere may also include air.
  • the treatment atmosphere may be a mixture of different gases, selected among others from N 2, O 2, H 2, CO 2, Ar, He, ammonia, in which case water vapor or other constituents may also be added. No limitation is made by this sample listing.
  • the following pure or mixtures of process gases form a treatment atmosphere: N2, compressed air, O2, H2, CO2, Ar, He, ammonia, ethylene, siloxanes, acrylic acids and / or solvents, wherein also Water vapor or other volatile components may be added. Preference is given to N2 and compressed air.
  • the atmospheric pressure plasma can be formed with a mixture of process gases, the mixture preferably containing at least 90% by volume of nitrogen and at least one noble gas, preferably argon.
  • the mixture consists of nitrogen and at least one noble gas, more preferably the mixture consists of nitrogen and argon.
  • a possible variant of the plasma treatment is the use of a fixed plasma jet.
  • An equally possible plasma treatment uses an arrangement of several nozzles, offset if necessary, for gapless, partially overlapping treatment in a sufficient width.
  • Rotary or non-rotating round nozzles can be used here.
  • Linear electrodes with a gas outlet opening are particularly suitable, which advantageously extend over the entire length of the laminating gap.
  • the plasma burns between the edge of a metallic plate, a metallic rod or a metallic wire and the one or more dielectrically coated rollers.
  • edge of the plate, the rod or the wire are aligned parallel to the laminating gap.
  • the plasma generator is covered with an insulator except for the outer edge, which points to the laminating gap.
  • the treatment distance of the plasma generator to the laminating gap is 1 to 100 mm, preferably 3 to 50 mm, particularly preferably 4 to 20 mm.
  • the speed at which the web (s) and the substrate are guided into the laminating gap is between 0.5 to 200 m / min, preferably 1 to 50 m / min, particularly preferably 2 to 20 m / min (in each case including the specified boundary values of the areas).
  • the pressure element including the plasma generator can move over the stationary web at the indicated speeds.
  • the web speeds of the first, second or other web and the ground are all the same.
  • the sheet-like material has an adhesive gauge which is disposed in the sheet material so as to be directly laminated to the substrate in direct contact with the ground.
  • the sheet-like material may be a double-sided adhesive tape consisting of a first adhesive layer, a substrate and a second layer of adhesive, which is optionally covered with a so-called liner for protection.
  • a liner (release paper, release film) is not part of an adhesive tape or label, but only an aid for their production, storage or for further processing by punching.
  • a liner is not firmly bonded to an adhesive layer.
  • Single-layered double-sided adhesive self-adhesive tapes are constructed so that the single-layer pressure-sensitive adhesive layer contains no carrier and only with appropriate release materials, for example siliconized release papers
  • the sheet-like material comprises or consists of a pressure-sensitive adhesive, which already under relatively weak pressure permits a permanent connection with almost all adhesive grounds and can be removed again from the primer after use substantially without leaving any residue
  • a PSA is permanently tacky at room temperature, so it has a sufficiently low viscosity and high tack, so that it wets the surface of the respective adhesive base even at low pressure
  • Adhesive composition is based on its adhesive properties and its removability on its cohesive properties.
  • the PSA layer is preferably based on natural rubber, synthetic rubber or polyurethanes, wherein the PSA layer preferably consists of pure acrylate or, in the majority, of acrylate.
  • the PSA may be blended with tackifiers to improve adhesive properties.
  • Tackifiers are, for example, hydrocarbon resins (for example polymers based on unsaturated Cs or Cg monomers), terpene phenolic resins, polyterpene resins based on raw materials such as ⁇ - or ⁇ -pinene, aromatic resins such as cumarone-indene resins or styrene-based resins ⁇ -methylstyrene such as rosin and its derivatives, for example disproportionated, dimerized or esterified rosin, for example reaction products with glycol, glycerol or pentaerythritol, to name just a few.
  • hydrocarbon resins for example polymers based on unsaturated Cs or Cg monomers
  • terpene phenolic resins polyterpene resins based on raw materials such as ⁇ - or ⁇ -pinene
  • aromatic resins such as cumarone-indene resins or styrene-based resins ⁇ -methylstyrene such as
  • resins without readily oxidizable double bonds such as terpene-phenolic resins, aromatic resins and especially preferably resins which are prepared by hydrogenation, for example hydrogenated aromatic resins, hydrogenated polycyclopentadiene resins, hydrogenated rosin derivatives or hydrogenated polyterpene resins.
  • resins based on terpene phenols and rosin esters Preference is given to resins based on terpene phenols and rosin esters. Also preferred are tackifier resins having a softening point above 80 ° C according to ASTM E28-99 (2009). Particular preference is given to resins based on terpene phenols and rosin esters having a softening point above 90 ° C. according to ASTM E28-99 (2009). Typical amounts used are 10 to 100 parts by weight based on polymers of the adhesive.
  • the adhesive formulation may optionally be blended with sunscreen or primary and / or secondary anti-aging agents.
  • the adhesive composition may also be blended with conventional processing aids such as defoamers, deaerators, wetting agents or leveling agents. Suitable concentrations are in the range of 0.1 to 5 parts by weight based on the solids.
  • the adhesive coating of the sheet-like material can be applied to a carrier material.
  • the carrier material used in the present case are preferably polymer films or film composites.
  • Such films / film composites can consist of all common plastics used for film production, but are not to be mentioned as examples by way of non-limiting example:
  • Polyethylene polypropylene - especially the oriented polypropylene (OPP) produced by mono- or biaxial stretching, cyclic olefin copolymers (COC), polyvinyl chloride (PVC), polyesters - in particular polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), ethylene vinyl alcohol (EVOH), polyvinylidene chloride (PVDC), polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), polycarbonate (PC), polyamide (PA), polyethersulfone (PES) or polyimide (PI).
  • OPP oriented polypropylene
  • COC cyclic olefin copolymers
  • PVC polyvinyl chloride
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • EVOH ethylene vinyl alcohol
  • PVDC polyvinylidene chloride
  • PVDF polyvinylidene fluoride
  • PAN polyacrylonit
  • Support material according to the invention comprises in particular all flat structures, for example, in two dimensions expanded films or film sections, tapes with extended length and limited width.
  • the sheet-like material is viscoelastic.
  • a viscoelastic polymer layer can be considered to be a very high viscosity liquid which under pressure loading exhibits the flow behavior (also called “creep") .
  • Such viscoelastic polymers or such a polymer layer have in particular the ability to with slow force acting on the forces acting on them They are able to dissipate the forces into vibrations and / or deformations (which in particular may also be reversible, at least in part), thus “buffering" the forces acting on them and favoring a mechanical destruction by the acting forces to avoid, but advantageously at least reduce or at least delay the time of the occurrence of destruction.
  • viscoelastic polymers In the case of a very rapidly acting force, viscoelastic polymers usually exhibit an elastic behavior, that is to say the behavior of a completely reversible deformation, whereby forces which go beyond the elasticity capacity of the polymers can lead to breakage. In contrast, there are elastic materials that show the described elastic behavior even with slow force. By admixtures, fillers, foaming or the like, such viscoelastic compositions can still be widely varied in their properties.
  • expandable microballoons are used for foaming.
  • Microballoons are elastic hollow spheres that are thermoplastic
  • An adhesive may be applied to the substrate, more preferably a pressure-sensitive adhesive.
  • adhesive adhesives
  • all adhesives can be used, as they are mentioned above.
  • a three-layered product is laminated to a substrate, preferably a three-layered product of an adhesive or non-adhesive foam carrier based on acrylate, are applied to both sides of pressure-sensitive adhesives.
  • the problem posed according to the invention is solved in the form that the plasma treatment and the lamination take place simultaneously.
  • the plasma is formed in the lamination gap.
  • the radicals generated by the plasma on the surface of the adhesive and on the surface of the substrate can not react with atmospheric oxygen and thus can not interact with the counterpart, since the time between generation and lamination goes to zero. This results in significant not previously expected adhesion increases, which can not be achieved by separate pretreatments.
  • the process can achieve an increase in the bond strength over a wide range of pressure-sensitive adhesives and substrates.
  • FIG. 1 shows a laminating gap which is formed by a pressure roller 11 which builds up the backpressure desired for lamination and by the substrate 12. On the pressure roller 1 1, a layer of a dielectric 1 1 1 is present.
  • a sheet-like material 21 consisting of a layer of adhesive is laminated to the substrate 12.
  • Both surfaces of the web-like material 21 and the substrate 12 are treated over the entire surface with a plasma 31, in such a way that the plasma 31 continuously acts on the surfaces starting from the laminating gap into the laminating gap.
  • the platen roller 1 1 moves together with the linear electrode 33 at a continuous speed in the direction indicated by the arrow.
  • Figure 2 differs from Figure 1 in that instead of a counter-pressure roller 1 1 a pressure element in the form of a pressure plate 1 1 is used with strichzylindrisch shaped lamination.
  • FIG. 3 differs from FIG. 1 in that, instead of the linear electrode 33, a nozzle 33 through which process gas can flow is used.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un procédé d'augmentation de l'adhérence entre la surface auto-adhésive d'un matériau en forme de bande et une surface d'un support sur lequel le matériau en forme de bande présentant la surface auto-adhésive vise à être appliqué. Le matériau en forme de bande est amené en continu à une fente de stratification, dans laquelle le matériau en forme de bande de la surface auto-adhésive est stratifié sur la surface du support, la surface auto-adhésive du matériau en forme de bande et la surface du support sont entièrement traitées au moyen d'un plasma, et ce de telle manière que le plasma agit en continu sur les deux surfaces en commençant devant la fente de stratification jusqu'à l'intérieur de la fente de stratification, la fente de stratification est formée par un élément de pression et le support et la surface de l'élément de pression est équipée d'un diélectrique.
EP15762520.3A 2014-09-05 2015-08-28 Procédé d'augmentation de l'adhérence entre la première surface d'un premier matériau en forme de bande et une première surface d'un deuxième matériau en forme de bande Withdrawn EP3188891A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014217805.3A DE102014217805A1 (de) 2014-09-05 2014-09-05 Verfahren zur Erhöhung der Adhäsion zwischen der ersten Oberfläche eines ersten bahnförmigen Materials und einer ersten Oberfläche eines zweiten bahnförmigen Materials
PCT/EP2015/069777 WO2016034514A1 (fr) 2014-09-05 2015-08-28 Procédé d'augmentation de l'adhérence entre la première surface d'un premier matériau en forme de bande et une première surface d'un deuxième matériau en forme de bande

Publications (1)

Publication Number Publication Date
EP3188891A1 true EP3188891A1 (fr) 2017-07-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15762520.3A Withdrawn EP3188891A1 (fr) 2014-09-05 2015-08-28 Procédé d'augmentation de l'adhérence entre la première surface d'un premier matériau en forme de bande et une première surface d'un deuxième matériau en forme de bande

Country Status (7)

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US (1) US20170275499A1 (fr)
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EP3638805B1 (fr) * 2017-06-13 2021-03-17 Materion Corporation Procédés pour la stabilisation de films de palladium
CN111605175A (zh) * 2020-04-20 2020-09-01 昆山易泰薄膜装饰有限公司 一种用于贴附装潢胶膜的装饰工艺及装饰装置
US20220205080A1 (en) * 2020-12-31 2022-06-30 Hutchinson Technology Incorporated Surface Treatment Producing High Conductivity Vias With Simultaneous Polymer Adhesion

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US20170275499A1 (en) 2017-09-28
DE102014217805A1 (de) 2016-03-10
CN107073920A (zh) 2017-08-18
MX2017002637A (es) 2017-06-07
TW201612269A (en) 2016-04-01
WO2016034514A1 (fr) 2016-03-10

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