EP3215580A1 - Traitement électrostatique de couches anti-adhérentes - Google Patents

Traitement électrostatique de couches anti-adhérentes

Info

Publication number
EP3215580A1
EP3215580A1 EP15793741.8A EP15793741A EP3215580A1 EP 3215580 A1 EP3215580 A1 EP 3215580A1 EP 15793741 A EP15793741 A EP 15793741A EP 3215580 A1 EP3215580 A1 EP 3215580A1
Authority
EP
European Patent Office
Prior art keywords
release layer
release
adhesive
substrate
silicone
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.)
Pending
Application number
EP15793741.8A
Other languages
German (de)
English (en)
Inventor
Nikolay BELOV
Hermann Neuhaus-Steinmetz
Dennis Perlbach
Tobias Winkler
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 EP3215580A1 publication Critical patent/EP3215580A1/fr
Pending 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
    • H05H1/4645—Radiofrequency discharges
    • H05H1/466—Radiofrequency discharges using capacitive coupling means, e.g. electrodes
    • 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
    • C09J2483/00—Presence of polysiloxane
    • C09J2483/005—Presence of polysiloxane in the release coating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2242/00—Auxiliary systems
    • H05H2242/20—Power circuits
    • H05H2242/22—DC, AC or pulsed generators

Definitions

  • the present invention relates to a method for the treatment of a release layer, comprising the steps of (i) providing a substrate having a release layer between at least one charging electrode and a counter electrode; and (ii) applying charges to the release layer by applying a DC voltage between the at least one charging electrode and the counter electrode, the at least one charging electrode being surrounded by an ionizable ambient gas.
  • the present invention further relates to release layer substrates obtainable by the method described herein, and to adhesive tapes comprising the release layer substrate and an adhesive described herein.
  • Adhesive tapes are often wound into a roll in the form of an Archimedean spiral at the end of the manufacturing process.
  • the adhesive is covered before winding the adhesive tape with a release liner (also referred to as release or covering).
  • Release liners are also used for covering flat goods such as labels.
  • release liners can be adjusted in such a way that one side of the adhesive tape is first exposed during the unwinding of the tape. This is possible if the release values between the respective release layer and the adhesive on the individual sides of the double-sided adhesive tape differ from one another.
  • release liners paper or film carriers are used, which are equipped with a release layer in order to reduce the adhesion tendency of adhering products to these surfaces (release-effective function).
  • the release agents used are various substances, such as silicones, fluorinated silicones, fluorinated alkanes and polyolefins, silicone copolymers, carbamates, waxes or mixtures thereof. Silicones have this because of their good processability and advantageous Separation properties largely enforced over the last few years. Due to the large number of different compositions, silicones can also be used to adjust the release values of release liners.
  • the level of the respective peel force of a pressure-sensitive adhesive of a silicone-based release liner is usually adjusted by silicone resins and in particular by so-called MQ resins.
  • MQ resins Although it is possible with the MQ resins to specifically adjust the release forces of a release liner and in particular the release forces of the release liner from the individual sides of a double-sided adhesive tape, a specific silicone composition must be selected for each desired release force coated on a carrier and cured. This makes it necessary to use and also stockpile multiple release liners with different MQ resin contents when there is a need for different release properties. Due to the large variety of different adhesive composition such storage is hardly feasible. Furthermore, the use of many different coating compositions can lead to increased waste material, since the individual coating compositions can not be permanently stored. Instead, the particular coating composition must be prepared just prior to application. In addition, it is known that the use of MQ resins can change the release force profile of silicone-coated release liners.
  • the separation force profile is the dependence of the release force on the withdrawal speed of the release liner from the adhesive.
  • the force required to remove a release liner from an adhesive increases (or decreases) in the range of low take-off speeds (from 0 to, for example, 20 m / min) with increasing take-off speed before a release force sets in which is only slightly lower than the take-off force depends.
  • the release force increases in the range of low take-off speeds (increasing profile) or decreases (sloping profile) depends on the content of MQ resin in the formulation. For high resin contents, sloping profiles are often observed and for low resin contents frequently rising profiles.
  • the separating force profile may be reversed in the release force profile.
  • the profile of the release force profile in silicone resin-containing formulations is difficult to predict, especially in the range of low take-off speeds. For example, it has been observed that in the low pull-off rate range of 0-20 m / min, the release values are high in the case of high MQ resin concentration and decrease with increasing drawdown speed, although the release values are low at low draw speeds for low MQ resin or resin free formulations and usually increase slightly with increasing take-off speed.
  • the object of the present invention is therefore to address the disadvantages of the prior art and to provide an improved process with which the release values of release liners can be adjusted in a targeted manner, even for strongly tacky products, in a simple manner. without there being any significant change in the course of the release force profile compared to an untreated liner (reference liner) or excessive interaction between the treated surface and the adhesive by over-treatment.
  • the present invention addresses this problem and the problems of the prior art by providing a method of treating a release layer comprising the steps of: providing a substrate having a release layer between at least one
  • the DC voltage is applied such that electrical charges escape from the at least one charging electrode and result in ionization of atoms or molecules within an ionizable ambient gas surrounding the at least one charging electrode. It is believed that the ionized atoms or molecules undergo acceleration towards the counterelectrode after ionization. It is also believed that upon impact of such accelerated atoms or molecules on the release layer, there is a chemical change in the surface and an increase in the surface polarity of the release layer. This change in polarity is considered to be the cause of the particular suitability of release layers treated according to the invention in release liners of adhesive tapes.
  • the release layer is exposed to a charge density of 50 to 10000 ⁇ * ⁇ " ⁇ / ⁇ " ⁇ 2 .
  • the present invention further relates to substrates with a release layer, which are obtainable by the process according to the invention; and an adhesive tape comprising the substrate with the release layer and an adhesive layer in contact with the release layer.
  • charges are applied to the release layer.
  • an electrical DC voltage is applied between the at least one charging electrode and the counterelectrode, so that there is an electron flow between the charging electrode and the counterelectrode, which is preferably designed as a roller or a plate.
  • the charges preferably exit the charging electrode.
  • the inventors assume that this results in ionization of atoms or molecules within the ambient gas in the immediate vicinity of the at least one charging electrode.
  • the present invention also refers to "electrode system.” Since the at least one charging electrode / electrode system is basically also suitable for generating electrostatic discharges, the present invention also speaks in the context of the method described herein "Electrostatic treatment” and the application of charges to the release layer can be used synonymously with “applying electrostatic charges to the release layer” for the purposes of the present invention, although they are not formally electrostatic charges
  • Charges on the release layer are preferably made while the substrate is being moved on a transport device, If the transport device is a roller, then this roller may be designed as a counterelectrode In this way, the charges, for example Electrically ionized atoms or molecules from the ambient gas of the at least one charging electrode are accelerated in the direction of the roller, and electrons can be removed via this roller, so that an electrical treatment current between the at least one charging electrode and the transport device is formed.
  • the required high voltage for generating the electrical treatment current is generated by a high voltage generator and is preferably 5-50 kV.
  • the current is preferably 0.1 -10 mA.
  • a portion of the charges emerging from the at least one charging electrode or from the electrode system results in ionization of atoms and molecules within the ambient gas.
  • Such ionized atoms and molecules experience high acceleration in the electric field between the at least one charging electrode / electrode system and the counter electrode configured as a transporting device. It is believed that ionization of atoms and molecules occurs because the electric field in the immediate vicinity of the sharp electrode tips or edges exceeds the ionization field strength of the ambient gas. This ionization is also visible through luminous phenomena in the immediate vicinity of the peaks. In the case of air as ambient gas, mainly oxygen and nitrogen ions are generated.
  • the release layer is preferably aligned between the at least one charging electrode and the counter electrode such that the release layer is oriented in the direction of the charging electrode.
  • the distance between the at least one charging electrode and the release layer on the substrate is in this case preferably from 1 to 30 mm, particularly preferably from 3 to 10 mm.
  • the at least one charging electrode comprises a plurality of juxtaposed pointed needles covering the desired area across the width of the release layer to be treated.
  • the treatment width can be adjusted by covering the electrode tips in the side areas as needed.
  • the targeted coverage of certain areas can achieve a strip-like treatment.
  • the intensity of the treatment effect can be varied. It has been found that the treatment effect for a specific product depends approximately on the electrical charges which have flowed from an electrode onto a surface unit of a release layer. Formally, this is the generated charge density on the release layer.
  • the charge density D results from the product of the current I and the treatment time t divided by the treatment area A, assuming a uniform charge distribution over the treatment surface.
  • treatment dose is also sometimes used for the charge density.
  • the separation behavior of the release layers described herein can be adjusted in a targeted manner, without reversing the course of the release force profile in the range of low take-off speeds.
  • the release force of the treated release layer with respect to a particular adhesive surface increases with increasing treatment dose.
  • the inventive method allows the treatment of release layers such that the treated release layers as well Separating materials against strongly adhesive surfaces such as acrylate-based PSAs are suitable.
  • the method according to the invention allows the provision of release layers whose release forces are in the range from 2 to 100 cN / cm in relation to strongly adhesive adhesives.
  • the release layer applied to a support can be guided over a roller, so that the side of the release layer facing the at least one charging electrode is treated.
  • Air between the roller and the carrier can also cause a treatment effect on the back of the carrier.
  • the air can be pressed out in front of the roller, for example with the aid of a pressure roller, an air nozzle, or some other measure.
  • the carrier is thus guided over a roller and pressed onto this roller.
  • the release layer is applied to a support.
  • the support is over the entire area, i. Covering and not only selectively covered by the release layer, so that the thickness of the release layer is preferably in a range of 0.05 - 5 ⁇ .
  • the release layer contains at least one silicone, at least one fluorinated silicone, at least one fluorinated or partially fluorinated alkane or polyolefin, at least one silicone copolymer, at least one carbamate, at least one wax, or mixtures of two or more of the mentioned substances.
  • the release layer is particularly preferably silicone-based.
  • silicone-based in the sense of the present invention means that the release layer contains at least one silicone-based polymer (hereinafter also "base polymer").
  • base polymers are Polysiloxanes, preferably functionalized and unfunctionalized polydimethylsiloxanes used.
  • the composition underlying the release layer contains up to 80 parts by weight, more preferably up to 40 parts by weight of a silicone resin, based on 100 parts by weight of silicone resin and base polymer.
  • Suitable silicone resins are known resins, preferably MQ resins. Suitable resins are described in D. Statas in: Handbook of Pressure Sensitive Adhesive Technology, 3rd Edition, page 664. Commercially available examples of particularly preferred resins are RCA 395 from Bluestar Silicones, Syl- Off® SL 40 from Dow Corning, and CRA® 17 from Wacker Silicones.
  • the composition underlying the release layer is free of silicone resins.
  • the release layer to be treated by the method according to the invention can be based on solvent-containing and / or solvent-free systems.
  • a "solvent-containing system” means that the system concerned is applied as an actual solvent-containing system, after which, however, only a maximum of traces of the solvent in the release layer are present after thermally initiated drying and crosslinking System "and thus indicates the special properties of such a solvent-based release layer.
  • the composition on which the release layer is based can be radiation-crosslinking (UV or electron beam), condensation-curing or addition-crosslinking.
  • the composition which forms the release layer to be treated is preferably addition-curing.
  • the composition underlying the release layer is preferably a crosslinkable silicone system. These include mixtures of crosslinking catalysts, so-called thermally curable condensation or addition-crosslinking polysiloxanes and crosslinking component. For condensation-crosslinking silicone systems, tin compounds such as dibutyltin diacetate are frequently included in the composition as crosslinking catalysts.
  • the composition underlying the release layer is particularly preferably an addition-crosslinking silicone system. Silicone-based release coatings on addition-curing basis can be cured by hydrosilylation. These release agents usually comprise the following components:
  • alkenylated polydiorganosiloxane especially linear and branched polymers containing terminal and non-terminal alkenyl groups
  • catalysts for addition-crosslinking silicone systems for example, platinum or platinum compounds, such as, for example, the Karstedt catalyst (a Pt (O) complex compound) have prevailed.
  • Karstedt catalyst a Pt (O) complex compound
  • rhodium compounds can be used.
  • photoactive catalysts so-called photoinitiators
  • UV-curable cationically crosslinking siloxanes based on epoxide and / or vinyl ethers
  • UV-curable free-radical crosslinking siloxanes such as acrylate-modified siloxanes.
  • electron beam curable silicones e.g., silicone acrylates
  • Corresponding systems may also contain other additives, such as stabilizers or leveling agents, depending on the intended use.
  • compositions in which the crosslinking reaction between organopolysiloxanes having hydrocarbyl substituted with mercapto groups bonded directly to the silicon atoms and organopolysiloxanes having vinyl groups bonded directly to the silicon atoms are described for example in US 4,725,630 A1.
  • organopolysiloxane compositions described, for example, in DE 33 16 166 C1 which have epoxy groups substituted hydrocarbon radicals bonded directly to the silicon atoms
  • the crosslinking reaction is induced by liberation of a catalytic amount of acid which is obtained by photodecomposition of added onium salt catalysts.
  • Others through a cationic mechanism curable organopolysiloxane compositions are materials which, for example, have propenyloxysiloxane end groups.
  • composition on which the release layer to be treated according to the invention is based further constituents such as anchoring aids; organic and / or inorganic pigments; Fillers such as carbon black and organic and / or inorganic particles (e.g., polymethyl methacrylate (PMMA), barium sulfate or titanium oxide (2)); and organic and / or inorganic antistatics such as ionic polyelectrolytes, organic salts, ionic liquids, metal powders (e.g., silver powder), graphite, and carbon nanotubes.
  • anchoring aids e.g., polymethyl methacrylate (PMMA), barium sulfate or titanium oxide (2)
  • organic and / or inorganic antistatics such as ionic polyelectrolytes, organic salts, ionic liquids, metal powders (e.g., silver powder), graphite, and carbon nanotubes.
  • the composition on which the release layer to be treated according to the invention is based in each case independently 0 to 5 parts by weight of one or more anchoring aids, one or more pigments, one or more fillers, and one or more antistatic agents, respectively based on 100 parts by weight of base polymer and silicone resin.
  • the inventive method is suitable for targeted adjustment of the release forces of release liners.
  • the application of electrostatic charges as described herein makes it possible to increase the separation forces without significantly changing the release force profile, ie the course of the release force as a function of the withdrawal speed, of the (untreated) release layer.
  • the method according to the invention allows the provision of release liners in which the absolute release force values can be set without significant change in the release force profile as a function of the dose.
  • the shape of the diagram does not change significantly when the release forces (Y-axis) are applied against the withdrawal speed (X-axis), but the profile merely shifts
  • the shape of the separating force profile ie the shape of the curve itself, remains substantially unchanged can from a surface to be treated in a simple way release layers with different degrees of separation compared to a and the same adhesive.
  • the release force profiles of the different release layers are still preserved. Overlapping the release forces of different release layers can thus be avoided both at low and at high take-off speeds.
  • the present invention also relates to release layers, which are obtainable by the process according to the invention, and release liners, comprising a support and a release layer.
  • this support is selected from the group consisting of polyethylene terephthalate (PET), polybutylene, polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC) and paper.
  • Particularly preferred supports are glassine papers, clay-coated papers, Kraft papers, machine-grade papers and polyolefin-coated papers, and biaxially stretched PET, mono- and biaxially drawn PP, cast PP (extruded PP), HDPE and LDPE.
  • suitable carriers which are provided with a release layer and are particularly suitable for treatment with the method according to the invention are siliconised glassine papers from Mondi (G-Liner), siliconized polyolefin-coated papers from Loparex (Polyslik TM), siliconized PET films from Siliconature (SILPHAN S), siliconized mono- and biaxially stretched PP films, as well as cast aluminum films from Siliconature (SILPROP S, SILPROP M, SILPROP K) and siliconized HDPE and LDPE films from the company Mondi.
  • the present invention relates to adhesive tapes comprising a release liner whose release layer has been treated by the method described herein. In the case of these adhesive tapes, at least one side of the adhesive of the adhesive tape is in contact with the release layer obtainable by the process according to the invention.
  • the present invention relates to adhesive tapes in which the adhesive which is in contact with the release liner of the invention comprises an acrylate-based adhesive, preferably an acrylate-based adhesive having a bond strength to steel of 1 to 20, particularly preferably 5 Is -15 N / cm.
  • the coating weight of the adhesive is 50 g / m 2.
  • the adhesive forces on steel mentioned herein are determined as follows: A 2 cm wide and 25 cm longer strip of the adhesive tape is glued to the test plate by rolling it twice five times with a winding speed of 10 m / min using a 4 kg roller.
  • test plate is clamped in the lower clamping jaw of the tensile testing machine (BZ2.5 / TN1 S Zwick) and the adhesive tape is stretched over its free end by means of a tensile testing machine (BZ2.5 / TN1 S Zwick) at a peeling angle of 180 ° at a speed of 300 mm / min deducted.
  • the necessary force is determined.
  • the measurement results are averaged over three measurements and normalized to the width of the strip in N / cm.
  • the adhesive which is in contact with the release liner of the release liner of the adhesive tape described herein has a maximum proportion of acrylic acid and methacrylic acid (hereinafter also “(meth) acrylic acid content”) 5, preferably 3, more preferably 1 percent by weight, based on the total composition of the adhesive, by which is meant that the proportion of acrylic acid and methacrylic acid units in the adhesive composition together does not exceed the stated values.
  • Units “includes both copolymerized acrylic acid and methacrylic acid within possible (sticky) sticky polymers of the adhesive as well as a possible (residual) monomer content of acrylic acid and methacrylic acid in the composition. In other words, the proportion exceeds copolymerized acrylic acid and methacrylic acid units and possible residual monomers in its sum not the maximum proportions mentioned.
  • a double-sided siliconized PE-Coated release paper Poly Slik 603/80 gloss / gloss sf from Loparex B.V. in the 330 mm width was treated on a coating machine with an electrostatic charging rod R130 from Eltex, which was arranged transversely to the web direction over a chromium-plated roller, at web speeds of 12 m / min to 50 m / min on a chromium-plated roller.
  • the required high voltage for generating an electric treatment current from the charging electrodes (hereinafter also "tips of the charging rod") to the release paper passed over the roller was generated by means of a high voltage generator KNH35 from Eltex.
  • the voltage was set to 12 kV and the current was
  • the gap between the charging rod and the release paper was set at 5 mm and the effective width of the charging rod was 356 mm, and the treatment of the release paper was conducted in an air atmosphere a possible measure of the expected strength of the treatment effect, the electrical charge density, which corresponds to the amount of electrical charge per unit area on the release paper shown.
  • the calculation of the charge density is performed according to the formula (1).
  • the release force of the pretreated release papers is determined by bonding with three test strips each 20 mm wide.
  • the test strips used are test tapes with the product numbers tesa 7475 and tesa 7476.
  • Tesa 7475 is an adhesive tape with a PET film as a carrier, on which an acrylate compound is applied (adhesion to steel 12.5 N / cm).
  • Tesa 7476 is an adhesive tape with a fabric tape as support on which a synthetic rubber is applied (bond strength to steel 8 N / cm).
  • the samples are stored for 24 hours at 70 ° C for tesa 7475 and at 40 ° C for tesa 7476 under a weight load of the bond of 2 N / cm 2 before the measurement.
  • test strips are cut to a length of 220 mm and stored for two hours under test conditions.
  • the upper test strip of the bond is clamped in the upper jaw of a tensile testing machine, as used in AFERA 4001.
  • the lower test strip is clamped in the lower jaw.
  • the jaw distance is 50 mm.
  • the measurement is made at a speed of 300 mm / min, with which the jaws are moved apart.
  • the mean value of the force required for the separation of the bond over a distance of 100 mm corresponds to the separating force.
  • the measurements are carried out at a test climate of 23 ⁇ 1 ° C and 50 ⁇ 5% rel. Humidity carried out.
  • the separation forces measured on the treated release paper are shown in Table 1.
  • a double-sided siliconized glassine release paper KS 800 68H004 / 63H from B. Laufenberg GmbH in the 330 mm width was coated on a coating system with an Eltex electrostatic charging rod R130, which was arranged transversely to the web direction over a chrome-plated roller, at web speeds of 12 m / min to 50 m / min electrostatically treated on a chromium-plated roller.
  • the high voltage needed to generate an electrical treatment current from the tips of the charging rod to the release paper passed over the roller was generated by a high voltage generator KNH35 from Eltex.
  • the voltage was set at 12 kV and the current was 2.6 mA irrespective of the web speed.
  • the gap between the charging rod and the release paper was set at 5 mm and the effective width of the charging rod was 356 mm.
  • the treatment of the release paper has been carried out in an air atmosphere.

Abstract

L'invention concerne un procédé de traitement d'une couche anti-adhérente, comprenant les étapes consistant à : placer un support muni d'une couche anti-adhérente entre au moins une électrode de charge et une contre-électrode ; et exposer ladite couche anti-adhérente à des charges par application d'une tension continue entre ladite au moins une électrode de charge et la contre-électrode, ladite au moins une électrode de charge étant entourée d'un gaz ambiant ionisable. L'invention concerne également des supports munis d'une couche anti-adhérente, qui peuvent être obtenus selon ledit procédé ; ainsi que des rubans adhésifs comprenant un tel support muni de la couche anti-adhérente et au moins une masse adhésive.
EP15793741.8A 2014-11-06 2015-11-04 Traitement électrostatique de couches anti-adhérentes Pending EP3215580A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222726.7A DE102014222726A1 (de) 2014-11-06 2014-11-06 Elektrostatische Behandlung von Release-Schichten
PCT/EP2015/075681 WO2016071387A1 (fr) 2014-11-06 2015-11-04 Traitement électrostatique de couches anti-adhérentes

Publications (1)

Publication Number Publication Date
EP3215580A1 true EP3215580A1 (fr) 2017-09-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15793741.8A Pending EP3215580A1 (fr) 2014-11-06 2015-11-04 Traitement électrostatique de couches anti-adhérentes

Country Status (3)

Country Link
EP (1) EP3215580A1 (fr)
DE (1) DE102014222726A1 (fr)
WO (1) WO2016071387A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018108881A1 (de) 2018-04-13 2019-10-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Oberflächenmodifiziertes Silikon, dessen Verwendung in Antihaftbeschichtungen sowie dieses enthaltendes Verbundmaterial
DE102019118173A1 (de) 2019-07-04 2021-01-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Oberflächenmodifiziertes Silikon, dessen Verwendung in Antihaftbeschichtungen sowie dieses enthaltendes Verbundmaterial

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Publication number Priority date Publication date Assignee Title
US3632386A (en) * 1968-10-31 1972-01-04 Arbco Inc Treated silicone surface
US4725630A (en) 1987-06-01 1988-02-16 Wacker Silicones Corporation α, β-unsaturated carbonyl-functional silicone compositions
US5106383A (en) * 1989-07-28 1992-04-21 Minnesota Mining And Manufacturing Company Closure systems for diapers and method of preparation
DE10151286A1 (de) * 2001-10-22 2003-04-30 Tesa Ag Beschichtungsverfahren
US20070059470A1 (en) * 2003-01-29 2007-03-15 Tesa Ag Adhesive tape and use thereof for bonding printing blankets
EP1772479A1 (fr) * 2005-09-29 2007-04-11 Ciba Specialty Chemicals Holding Inc. Support antiadhérent recouvert de silicone

Non-Patent Citations (1)

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Title
See references of WO2016071387A1 *

Also Published As

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DE102014222726A1 (de) 2016-05-12
WO2016071387A1 (fr) 2016-05-12

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