EP3484800A1 - Applikator für 2-komponentige klebebänder mit faltmechanismus - Google Patents
Applikator für 2-komponentige klebebänder mit faltmechanismusInfo
- Publication number
- EP3484800A1 EP3484800A1 EP17745121.8A EP17745121A EP3484800A1 EP 3484800 A1 EP3484800 A1 EP 3484800A1 EP 17745121 A EP17745121 A EP 17745121A EP 3484800 A1 EP3484800 A1 EP 3484800A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive tape
- adhesive
- reactive
- film
- folded
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/06—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for folding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
- B65H35/002—Hand-held or table apparatus
- B65H35/0026—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape
Definitions
- the invention relates to an applicator for an adhesive tape and to a method for producing a folded adhesive tape from an adhesive tape.
- One-component adhesive tapes are of course well known in the art. In some industrial applications, such as in the automotive sector, adhesive joints between parts to be joined must be able to bridge a few millimeters. Many applications also require 2-component adhesive systems. However, it is difficult in the prior art to provide such thick-layered products, so that in order to bridge varying adhesive joints of a few millimeters adhesive tapes in multiple layers must be applied.
- the object of the invention is therefore to provide an applicator for a folded 2-component adhesive tape and to provide a method for producing a folded adhesive tape.
- the invention combines on the one hand a method for activating adhesive films of an adhesive tape by means of chemical initiation and, on the other hand, subsequent and / or subsequent folding of the adhesive tape into a folded and thus thicker adhesive tape.
- the folded adhesive applicator according to the invention with a 2-component adhesive system comprises an adhesive tape roll having an adhesive tape comprising an adhesive film having a reactive adhesive component and a reactive outer side, an unwinding device for the adhesive tape from the adhesive tape roll, a feeding device of another reactive adhesive component the reactive outer side of the adhesive film of the unwound adhesive tape for forming an activated adhesive tape and a folding device for the activated adhesive tape arranged in the running direction of the activated adhesive tape after the feed device for producing the folded adhesive tape.
- an adhesive tape is here understood a flat structure with a longitudinal extent that clearly, d. H. the multiple is greater than a width and a height, wherein the width of the adhesive tape also clearly, d. H. a multiple may be greater than the height of the tape.
- the adhesive tape may comprise a liner, which is a carrier layer which stabilizes the tape, but it may also have two layers of liners or possibly even more liner layers.
- the liner is preferably made of siliconized polyester or siliconized paper, sometimes also siliconized or non-siliconized polyolefin.
- the adhesive film of the adhesive tape may be mono- or multi-layered, essential to the invention here is that the adhesive film comprises or is formed by the adhesive component, which is initially unpolymerized, uncrosslinked or not fully crosslinked, but may well be tacky and its full Crosslinking, ie curing / curing and their solid adhesive bond with a Fügeteilober Structure is only generated by the fact that the adhesive component is activated by the action of the further adhesive component.
- activation is meant here that a polyreaction is initiated in the and the further adhesive film. The polyreaction begins on the outside of the adhesive film and continues into the adhesive film. The polyreaction is in particular initiated directly on the outside.
- the duration of the polyreaction is such that the adhesive tape can still be folded after initiation of the polyreaction and the folded adhesive tape thus has a greater thickness than the adhesive tape, and the folded adhesive tape can then be applied to an adherend surface to bridge large gaps to serve between joining components and hardens completely only after application to the adherend surface.
- the adhesive tape comprises an adhesive with a reactive adhesive component
- the reactive adhesive component comprises a polymeric film former matrix, at least one reactive monomer or reactive resin and at least one initiator, in particular a radical initiator.
- the further adhesive component is provided in an embodiment of the invention with a further adhesive film.
- the feed device comprises a further adhesive tape roll with a further adhesive tape with the further adhesive film with the further reactive adhesive component.
- the further reactive adhesive component comprises both a further reactive monomer or a further reactive resin and also at least one activator and also a further polymeric film-forming matrix.
- the adhesive tape and the further adhesive tape are arranged relative to one another such that a further reactive outer side of the further adhesive tape is applied to the reactive outer side of the adhesive tape by means of the feed device and activated by touching the two outer sides of the adhesive films.
- the film former matrix and / or the further film former matrix preferably comprise a thermoplastic polymer from the group consisting of a polyester or copolyester, a polyamide or copolyamide, a polyacrylic acid ester, an acrylic acid ester copolymer, a polymethacrylic acid ester, a methacrylic acid ester copolymer, thermoplastic polyurethanes and chemically or physically crosslinked substances of the aforementioned compounds.
- a thermoplastic polymer from the group consisting of a polyester or copolyester, a polyamide or copolyamide, a polyacrylic acid ester, an acrylic acid ester copolymer, a polymethacrylic acid ester, a methacrylic acid ester copolymer, thermoplastic polyurethanes and chemically or physically crosslinked substances of the aforementioned compounds.
- a thermoplastic polymer from the group consisting of a polyester or copolyester, a polyamide or copolyamide, a polyacrylic acid
- the at least one further reactive monomer or the at least one further reactive resin and the at least one activator are dissolved in a solvent and / or in water; they are stored in a reservoir, which communicates with the nozzle, and via a suitable pump, the further Klebstoffkömponente the 2-Komponenteh adhesive system is sprayed onto the reactive outer side of the adhesive tape. Reservoir and pump form in this embodiment together from the feeder.
- the activator is formed from the group consisting of an amine, a dihydropyridine derivative, a transition metal salt, or a transition metal complex.
- the initiator is preferably a radical initiator selected from the group consisting of peroxide, hydroperoxide and azo compounds.
- the folding device of the applicator comprises a puller for the liner or for a liner residue, wherein the peeling device may consist of several individual peeling, each deduct a liner residue from the tape and thus successively different liner residues can be removed from the tape.
- the folding device may also comprise a plurality of individual folding devices, so that with it the adhesive tape can be folded several times, simply, twice or even in any higher number along a longitudinally extending fold line.
- the individual folding devices and peeling devices can also be arranged alternately.
- the adhesive tape is first folded once, then a first liner residue is removed from the simply folded adhesive tape, the adhesive tape is possibly folded a second time and a second liner residue is peeled off from the doubly folded adhesive tape; this process can in principle be repeated as often as desired.
- the applicator on a handle, and the applicator is manageable.
- the adhesive film comprises at least one polymeric film former matrix, at least one reactive monomer or reactive resin, at least one initiator, in particular a free-radical initiator, while the further adhesive film comprises a polymer film former matrix, at least one reactive monomer or reactive resin and at least one activator.
- the individual terms are defined below as used herein.
- the further adhesive component formed from the further reactive monomer or further reactive resin and the at least one activator is solvent- and / or water-soluble and therefore can be sprayed in the dissolved state as an aerosol on the outside of the adhesive film and thus activate the adhesive film.
- the method is particularly suitable for carrying out with one of the abovementioned applicators.
- an end portion of an adhesive tape comprising an adhesive film having a reactive adhesive component and a reactive outer side is unwound from the adhesive tape roll, and another reactive adhesive component is supplied to the reactive outer side of the adhesive film by means of a feeder.
- another reactive adhesive component is supplied to the reactive outer side of the adhesive film by means of a feeder.
- the adhesive tape is folded by means of a folding device.
- the adhesive tape is folded at least once along a longitudinally extending fold line. It can be folded once, twice or in any higher number, whereby the thickness of the adhesive tape of a desired predetermined thickness can be adjusted.
- the thickness of the folded adhesive tape is preferably adapted to a gap width of two parts to be joined.
- the further adhesive component is introduced into a further adhesive film having a further reactive outer side, and the further reactive outer side is then glued to the reactive outer side.
- the further adhesive film may also be provided as part of another adhesive tape, wherein the further adhesive tape may comprise a liner on which the further adhesive film is applied.
- the further adhesive tape can be wound up on another roll of adhesive tape. The two rolls of tape are then unwound at the same speed, and the two reactive outsides of the two tapes are glued together continuously and continuously.
- the further adhesive component is not introduced into an adhesive film, but it is provided in solution in a solvent and / or water and sprayed onto the outside of the adhesive film.
- the feed device in this embodiment of the invention comprises a nozzle and a reservoir for the dissolved further adhesive component
- the folded adhesive tape has a thickness corresponding to an integer number of superimposed adhesive layers.
- the adhesive tape is folded at each fold along a longitudinal fold line, after or before each folding process, liner residues can be removed from the folded adhesive tape by means of a peeling device.
- FIG. 1 shows a hand-held applicator in a schematic interior view in a first embodiment
- Pig. 2 shows a hand-guided applicator in a schematic interior view in a second embodiment
- FIG. 3 is a sectional view of an adhesive tape as used in an applicator in FIG. 1.
- FIG. 3 is a sectional view of an adhesive tape as used in an applicator in FIG. 1.
- a hand-guided applicator 1 of a first embodiment, shown in FIG. 1, has a housing which comprises two sections arranged at an angle to one another and a handle 2, which is mounted with one end on one of the two sections and with the aid of which the applicator 1 is guided by a Person can be carried.
- FIG. 1 The essential components of the applicator 1 are shown in FIG. 1 in an interior view.
- an adhesive tape output 3 is provided, from which a single or multiple folded tape 8 runs out, which applied by means of the applicator 1 on a surface of a (not shown) joining part, d. H. can be stuck.
- the adhesive tape 7 is folded once, twice or more times by means of a folding device 10.
- the folded adhesive tape 8 is folded so many times that it assumes a predetermined thickness.
- an adhesive tape roll 6 opposite end of a receptacle 4 is provided for an adhesive tape roll 6. On the adhesive tape roll 6, the adhesive tape 7 is wound up.
- a cutting device 12 is provided, which cuts the folded adhesive tape 8 to the desired length.
- a free end of the adhesive tape 7 is passed through an unwinding device (not shown).
- An outgoing from the adhesive tape roll 6 end portion is continuously withdrawn by the unwinding of the adhesive tape roll 6.
- the folded adhesive tape 8 is produced from the adhesive tape 7 wound on the adhesive tape roll 6.
- a folded adhesive tape 8 is to be understood here as an adhesive tape that has a greater thickness than the adhesive tape 7.
- the adhesive tape 7 shown in FIG. 3 a in cross-section perpendicular to its longitudinal direction L is first wound on the adhesive tape roll 6, the adhesive tape 7 comprises an adhesive film 30 with a free reactive outer side 31 and a liner 32 along one of the free reactive outer side 31 opposite side is arranged on the adhesive film 30.
- the free reactive outer side 31 of the adhesive film 30 is pressure-sensitive.
- a feeding device for a further adhesive tape 60 is provided between the adhesive tape roll 6 and the folding device 0.
- the Another adhesive tape 60 is rolled up on another adhesive tape roll 61 and another free end of the further adhesive tape 60 is unrolled by means of a further unwinding device unrolled from the further adhesive tape roll 61 and fed to the free end of the adhesive tape 7.
- the structure of the further adhesive tape 60 is shown in a cross section perpendicular to its longitudinal direction L is shown in Fig. 3b.
- the further adhesive tape 60 comprises a further adhesive film 70 with a free reactive outer side 71 and a further liner 72, which is arranged along one of the free reactive outer side 71 opposite side to the further adhesive film 70.
- the further outer side 71 of the further adhesive film 70 is also pressure-sensitive.
- the feeding device of the further adhesive tape roll 61 is designed so that the further outside 71 is glued to the outside 31. Due to the direct adhesion of the two adhesive films 30, 70, a linking reaction is initiated in the adhesive film 30, and a double-layered adhesive tape 80 is activated.
- the double-layer adhesive tape 80 is fed via a deflection roller 9 of the folding device 10.
- Portions of the further liner 72 or the entire further liner 72 are removed from the double-layered adhesive tape 80, and the double-layered adhesive tape 80 is folded along fold lines running in the longitudinal direction L of the double-layered adhesive tape 80.
- the liner 32 can also be removed or at least portions of the liner 32 can be removed from the adhesive tape 7.
- a collecting container 11 for liner residues 43, 51, 54 of the liner 32 and the further liner 72 is provided.
- the adhesive film 30 comprises a polymeric film-forming matrix, at least one reactive monomer or reactive resin and at least one initiator, in particular free-radical initiator, while the further adhesive film 70 comprises a polymer film former matrix, at least one reactive monomer or reactive resin and at least one activator.
- the adhesive films 30, 70 basically consist of a matrix which is referred to below as the polymeric film-forming matrix in which the reactive monomers to be polymerized and / or reactive resins are contained.
- the task of this matrix is to form an inert skeleton for the reactive monomers and / or reactive resins, so that they are not liquid but are incorporated in a film or a film. In this way, easy handling is ensured.
- Inert in this context means that the reactive monomers and / or reactive resins do not substantially react with the polymeric film former matrix under suitably chosen conditions (eg, at sufficiently low temperatures).
- 6a, 6b show the folding mechanism 10 to which the double-layered adhesive tape 80, which is formed from a first adhesive tape 7 and a second adhesive tape 70 and has been removed from a liner 32, is fed.
- the double-layer adhesive tape 80 is pressed in a longitudinal direction, L in a guide rail 14.
- the guide rail 14 has a changing angle with respect to its center line in the longitudinal direction L. This is, starting from the entry into the folding mechanism 10 continuously led together from an opening angle of 80 ° to less than 20 ° before the double-layered adhesive tape reaches the lamination rollers 16 and the folded adhesive tape 8 is formed.
- the contour wheel may be a cutting element that cuts through the second liner 72 or liner 72 and double-layered adhesive tape 80 along the fold line.
- Suitable film-forming matrices for use in the present invention are preferably selected from the following list: a thermoplastic polymer, e.g. a polyester or copolyester, a polyamide or copolyamide, a polyacrylic acid ester, an acrylic acid ester copolymer, a polymethacrylic acid ester, a methacrylic acid ester copolymer, thermoplastic polyurethanes and chemically or physically crosslinked substances of the abovementioned compounds.
- a thermoplastic polymer e.g. a polyester or copolyester, a polyamide or copolyamide, a polyacrylic acid ester, an acrylic acid ester copolymer, a polymethacrylic acid ester, a methacrylic acid ester copolymer
- thermoplastic polyurethanes e.g. ethylene glycol dimethacrylate, poly(ethylene glycol)-co-co-co-co-co-co-co-co-co-co-co-co
- thermoplastic elastomers are conceivable solely or in admixture as a polymeric film-forming matrix. Preference is given to thermoplastic polymers, in particular semicrystalline.
- thermoplastic polymers with softening temperatures less than 100 ° C.
- softening point stands for the temperature at which the thermoplastic granules stick to themselves.
- component of the polymeric film former matrix is a semicrystalline thermoplastic polymer, it most preferably has a glass transition temperature of at most 25 ° C., preferably at most 0 ° C., in addition to its softening temperature (which is associated with the melting of the crystallites).
- thermoplastic polyurethane is used.
- the thermoplastic polyurethane has a softening temperature of less than 100 ° C, especially less than 80 ° C.
- Desmomelt 530® is used as the polymeric film former matrix commercially available from Bayer Material Science AG, 51358 Leverkusen, Germany. Desmomelt 530® is a hydroxyl-terminated, largely linear,. thermoplastic, highly crystallizing polyurethane elastomer.
- the amount of the polymeric film-forming matrix according to the invention is in the range of about 20-80 wt.%, Preferably about 30-50 wt.%, Based on the total mixture of the components of the reactive adhesive film 30, 70. Most preferably 35-45 wt .%, Preferably about 40 wt.% Of the polymeric film-forming agent matrix, based on the total mixture of the components of the reactive adhesive film 30, 70 used.
- the total mixture of the constituents of the reactive adhesive film 30, 70 here stands for the total amount of the polymeric film former matrix (a) used, of the reactive monomers or reactive resins (b), of the reagent (c) and of other optional components which are used as the sum ( in% by weight).
- the reactive monomer or resin is meant to be a monomer or resin which is particularly capable of radical polymerization.
- a suitable reactive monomer is selected from the group consisting of acrylic acid, acrylic acid esters, methacrylic acid, methacrylic acid esters, vinyl compounds and / or oligomeric or polymeric compounds having carbon-carbon double bonds.
- the reactive monomer is one or more members selected from the group consisting of: methyl methacrylate (CAS No. 80-62-6), methacrylic acid (CAS No. 79-41-4), cyclohexyl methacrylate (CAS No 101-43-9), tetrahydrofurfuryl methacrylate (CAS No. 2455-24-5), 2-phenoxyethyl methacrylate (CAS No. 10595-06-9), di (ethylene glycol) methyl ether methacrylate (CAS No. 45103) -58-0) and / or ethylene glycol dimethacrylate (CAS No. 97-90-5).
- the reactive adhesive film 30, 70 comprises a mixture of cyclohexyl methacrylate, tetrahydrofurfuryl methacrylate, methacrylic acid and ethylene glycol dimethacrylate as the reactive monomers to be polymerized.
- the reactive adhesive film 30, 70 contains a mixture of methyl methacrylate, methacrylic acid and ethylene glycol dimethacrylate as reactive monomers to be polymerized. In a further preferred embodiment of the invention, the reactive adhesive film 30, 70 contains a mixture of 2-phenoxyethyl methacrylate and ethylene glycol dimethacrylate as reactive monomers to be polymerized.
- the reactive adhesive film 30, 70 contains a mixture of di (ethylene glycol) methyl ether methacrylate and ethylene glycol dimethacrylate as reactive monomers to be polymerized.
- reactive resin (s) it is possible to select oligomeric mono-, di-, tri- and higher-functionalized (meth) acrylates. Very advantageously, these are used in admixture with at least one reactive monomer.
- thermoplastic polyurethane such as B. Desmomelt 530®
- B. Desmomelt 530® be combined as a polymeric film former matrix.
- the amount of the reactive monomer (s) of the reactive resin (s) in the present invention is in the range of about 20-80% by weight, preferably about 40-60% by weight, based on the total blend of the reactive adhesive film 30, 70 components. Most preferably, about 40-50% by weight of the reactive monomer (s) / reactive resin (s) based on the total blend of the reactive adhesive film 30, 70 components is employed.
- the total mixture of the constituents of the reactive adhesive film 30, 70 here stands for the total amount of the polymeric film former matrix (a) used, of the reactive monomers or reactive resins (b), of the reagent (c) and of other optional components which are used as the sum ( in% by weight).
- initiator especially radical initiator or radical-forming substance (or hardener) means a compound that can initiate a polymerization reaction or crosslinking of the adhesive.
- the initiator in particular free-radical initiator, takes part in the reaction process to a very small extent and consequently does not form a polymer component which determines the properties of the bond.
- an initiator in particular a radical initiator, is added to the reactive adhesive film 30 of the 2-component adhesive system.
- radical initiators Preference is given to radical initiators. It can be used all known in the art radical initiators. Preferred free-radical initiators are peroxides, hydroperoxides and azo compounds. In a particularly preferred embodiment of the invention, the radical initiator is an organic peroxide. Particularly preferred is dimethylbenzyl hydroperoxide, which is also known as cumene hydroperoxide (CAS No. 80-15-9).
- the amount of radical initiator is in the range of about 3-30% by weight, preferably about 8-15% by weight, based on the total mixture of the constituents of the reactive adhesive film 30. Most preferably about 9-11% by weight of free-radical initiator, based on the total mixture of the constituents of the reactive adhesive film 30 used.
- the total mixture of the constituents of the reactive adhesive film 30 stands for the total amount of the polymeric film former matrix (a) used, the reactive monomers or reactive resins (b), the reagent (c) and further optional components which are used as the sum (in wt. %).
- activator stands for a compound that enables or accelerates the polymerization process even at very low concentrations. Activators can also be called accelerators or accelerators.
- an activator is added to the further adhesive film 70 of the 2-component adhesive system.
- Suitable activators for use in the present invention when a radically polymerizable system is to be activated are, for example, selected from the group consisting of an amine, a dihydropyridine derivative, a transition metal salt or a transition metal complex.
- tertiary amines are used to activate the radical-forming substance.
- At least one of the catalytically active substances is selected from the group consisting of metal phthalocyanines and metalloporphyrins.
- all the catalytically active substances used are chosen to metaliphthalocyanines and / or metalloporphyrins.
- the metals of the metal phthalocyanines are selected from the group consisting of iron, cobalt, copper, nickel, aluminum, magnesium, manganese, tin, zinc.
- the metals of the metalloporphyrins are selected from the group consisting of iron, cobalt, copper, nickel, aluminum, magnesium, manganese, tin, zinc.
- iron (II) phthalocyanine [C32H16FeN8] (CAS No.
- catalytically active substance 132-16-1 is used as catalytically active substance - in particular exclusively, but also possible in combination with one or more further metal phthalocyanines and / or one or more other metalloporphyrins - used as katalytsich active substance.
- An advantageous combination of catalytically active substances is, for example, those of iron phthalocyanine and one or more iron porphyrins.
- crosslinker refers to chemical compounds capable of providing linear molecular chains with reactive functional groups to allow the two-dimensional structures to form three-dimensionally crosslinked structures through the formation of intermolecular bridges.
- crosslinkers are chemical compounds which have two or more identical or different functional groups within the molecule or at the two molecule ends and consequently can crosslink together molecules of identical or different structures.
- a crosslinker can react with the reactive monomer or reactive resin as defined above, without resulting in polymerization in the true sense.
- a crosslinker can be incorporated into the polymer network.
- ethylene glycol dimethacrylate (CAS No. 97-90-5) is used as crosslinker and / or reactive monomer (see above).
- the reactive adhesive films 30, 70 of the present invention may optionally contain other additives and / or adjuvants known in the art.
- additives and / or adjuvants known in the art. Examples of these are fillers, dyes, nucleating agents, rheological additives, blowing agents, tackifying additives (adhesion promoters, tackifier resins), compounding agents, Plasticizers and / or aging, light and UV protectants, for example in the form of primary and secondary antioxidants.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, cyclohexyl methacrylate, tetrahydrofurfuryl methacrylate, methacrylic acid, ethylene glycol dimethacrylate and cumene hydroperoxide.
- the adhesive film 30 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, methyl methacrylate, methacrylic acid, ethylene glycol dimethacrylate and cumene hydroperoxide.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, 2-phenoxyethyl methacrylate, ethylene glycol dimethacrylate and cumene hydroperoxide.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, di (ethylene glycol) methyl ether methacrylate, ethylene glycol dimethacrylate and cumene hydroperoxide.
- Each of these preferred embodiments of the invention contains about 20-80% by weight of thermoplastic polyurethane, about 20-80% by weight of reactive monomer (s), and about 3-30% by weight of cumene hydroperoxide, preferably about 30-50% by weight of thermoplastic Polyurethane, about 40-60% by weight of reactive monomers and about 8-15% by weight of cumene hydroperoxide, based on the total mixture of the constituents of the reactive adhesive film 30, 70.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, cyclohexyl methacrylate, tetrahydrofurfuryl methacrylate, methacrylic acid, ethylene glycol dimethacrylate and PDHP.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, methyl methacrylate, methacrylic acid, ethylene glycol dimethacrylate and PDHP.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic Polyurethane, in particular Desmomelt 530®, 2-phenoxyethyl methacrylate, ethylene glycol dimethacrylate and PDHP.
- the adhesive film 30, 70 comprises a mixture of the following constituents: thermoplastic polyurethane, in particular Desmomelt 530®, di (ethylene glycol) methyl ether methacrylate, ethylene glycol dimethacrylate and PDHP.
- thermoplastic polyurethane contains about 20-80% by weight of thermoplastic polyurethane, about 20-80% by weight of reactive monomer (s), and greater than 0 to about 40% by weight of PDHP, preferably about 30-50% by weight.
- thermoplastic polyurethane about 40-60% by weight of reactive monomer (s) and about 15-25% by weight of PDHP, based on the total mixture of the constituents of the reactive adhesive film 30, 70.
- the total blend of the components of reactive adhesive film 30, 70 refers to the total amount of polymeric film former matrix employed, reactive monomer / monomer and / or reactive resin / reactive resin, reagent, and other optional components , which is obtained as the sum (in% by weight).
- the reactive adhesive film 30, 70 of the invention generally has a layer thickness in the range of about 20-200 pm, preferably about 30-100 ⁇ , more preferably about 40-60 pm and more preferably about 50 pm. To produce larger layer thicknesses, it may be advantageous to laminate several layers of adhesive film together.
- the reactive adhesive film 30, 70 according to the invention preferably has pressure-sensitively adhesive properties.
- pressure-sensitive adhesives are defined as pressure-sensitive adhesives (Rompp Online 2013, document identifier RD-08-00162), whose set, dry film is permanently tacky at room temperature and remains tacky.
- the pressure-sensitive adhesive is applied by light pressure immediately on almost all substrates: As light contact pressure here is a contact pressure of greater than 0 bar, which is exercised for a duration of greater than 0 seconds meant.
- the folded adhesive tape 8 leaves the folding device 10, the folded adhesive tape 8 is protected on one side with remaining after the folding process and separation of the liner remainder 54 part of a liner 52, while the remaining part of the liner 52 opposite Outside 53 remains activated.
- the folded folded tape 8 formed by folding has a thickness equal to twice, three times, four times or any higher integer number of thicknesses of the self-adhered adhesive tape 7.
- the folded adhesive tape 8 leaves the application outlet with the remaining part of the liner 52.
- the further adhesive component of the 2-component adhesive system is not sprayed in the form of the further adhesive film 70, but by means of a nozzle 90.
- the further adhesive component is therefore not in film form as in the first embodiment.
- the applicator 1 according to FIG. 2 uses a reactive adhesive film system comprising the reactive adhesive film 30, wherein the adhesive film 30 comprises a polymeric film-forming matrix, at least one reactive monomer or reactive resin, at least one initiator, in particular a radical initiator, and wherein the further adhesive component at least one reactive monomer or reactive resin. and at least one activator, but not necessarily a polymeric film former matrix.
- the at least one reactive monomer or reactive resin and the at least one activator are dissolved in a solvent and / or water and are sprayed in the dissolved state via the nozzle 90 onto the reactive outer side 31 of the adhesive film 30.
- 3a shows the adhesive tape 7 in a simple embodiment in a cross section along a width B of the adhesive tape 7.
- the adhesive tape 7 has the adhesive film 30 and the thinner 32 compared to the thickness of the adhesive film 30; Adhesive film 30 and liner 32 have the identical width B, so that one side of the adhesive film 30 is completely covered by the liner 32, while the outside 32 of the adhesive film 30 opposite the liner 32 is exposed.
- FIG. 3b shows the further adhesive tape 60 in a cross section along a further width B 'of the further adhesive tape 60.
- the width B of the adhesive tape 7 and the further width B' of the further adhesive tape 60 are the same, preferably along the entire length of the two adhesive tapes 7 , 60
- Figs. 4a, 4b, 4c shows a simple folding of the adhesive tape 7 which is sprayed with an aerosol according to the second embodiment according to Fig. 2 of the invention, while the fold shown in Figs. 5a, 5b, 5c a double Folding of the Adhesive tape 7 in each case along one or from two longitudinally extending L fold lines.
- the folding in the sequence of the figure sequence 4a, 4b, 4c takes place along a single fold line, which extends centrally in the longitudinal direction L along the adhesive tape 7 and along which the free outer side 31 of the Kleffofffims 30 is folded together by two parallel longitudinal strips of the outer surface 31 are folded together and stick together.
- An intermediate position during the folding process is shown in Fig. 4a.
- Fig. 4b shows the state in which the adhesive tape 7 is completely folded.
- the liner 32 surrounds the simply folded adhesive film 30 in a U shape.
- the folding device 10 also comprises a cutting device (not shown) with which the liner 43, which is L-shaped in cross-section perpendicular to the longitudinal direction L, is removed from the simply folded adhesive tape 7 , and a leftover liner 42 remains on the folded adhesive film 30, so that the single folded adhesive tape 8 shown in FIG. 4c is produced and leaves the applicator 1 at the tape exit 3.
- the single-folded adhesive tape 8 has on one side the leftover liner 42, while a free outer side 41 of the double adhesive film 30 opposite the leftover liner 42 is free. It is conceivable in other embodiments of the invention that the folded adhesive tape 8 is activated once more with another plasma nozzle (not shown). The activation would then take place on the newly developed during the folded tape 8 free outer side 41.
- FIG. 5a, 5b a double folding is shown, the double folding is also from the adhesive tape 7 of FIG. 3, wherein the adhesive tape 7 is not in the longitudinal direction L in the middle, but along a longitudinal direction L extending fold line, in a One-third of the width B runs takes place.
- FIG. 5a shows the completely folded-over adhesive film 30, from which a L-shaped liner 51 of cross-section has already been removed.
- a third third of the adhesive tape 7 is folded over the already folded portion of the adhesive tape 7, as shown in Fig. 5b arrow shows, so that a two-fold adhesive tape 8 is formed, which is composed of three superposed adhesive films 30.
- Remaining liner 52 is disposed on one side of the folded adhesive films 30, and a free outer surface 53 remains on the opposite side of the remaining liner 52.
- the liner residue 54 is again severed with the cutter.
- the folding mechanism 10 is shown, to which the double-layered adhesive tape 80, which is formed from a first adhesive tape 7 and a second adhesive tape 70 and to which a liner 32 has been removed, is supplied.
- the double-layer adhesive tape 80 is depressed when moving in the longitudinal direction L in a guide rail.
- the guide rail 14 has a changing angle with respect to its center line in the longitudinal direction L. This is outgoing from entry into the folding mechanism 10 Continuously merged from 180 ° opening angle to less than 20 ° before the double-layered adhesive tape reaches the lamination rollers 16 and the folded adhesive tape 8 is formed. Underneath the contour wheel 15 may be a cutting element that cuts through the second liner 72 or liner 72 and double-layered adhesive tape 80 along the fold line.
Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016212954.6A DE102016212954A1 (de) | 2016-07-15 | 2016-07-15 | Applikator für 2-komponentige Klebebänder mit Faltmechanismus |
| PCT/EP2017/000833 WO2018010844A1 (de) | 2016-07-15 | 2017-07-13 | Applikator für 2-komponentige klebebänder mit faltmechanismus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3484800A1 true EP3484800A1 (de) | 2019-05-22 |
| EP3484800B1 EP3484800B1 (de) | 2023-01-04 |
Family
ID=59409308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17745121.8A Active EP3484800B1 (de) | 2016-07-15 | 2017-07-13 | Applikator für 2-komponentige klebebänder mit faltmechanismus |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3484800B1 (de) |
| DE (1) | DE102016212954A1 (de) |
| WO (1) | WO2018010844A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12084606B2 (en) | 2020-12-22 | 2024-09-10 | Tesa Se | Tape assembly and method of using the same |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3138512A (en) * | 1962-05-14 | 1964-06-23 | Reuben R Partin | Tape placing tool |
| US3748211A (en) * | 1971-06-30 | 1973-07-24 | M Hoopengardner | Carpet tape dispenser |
| DE8905144U1 (de) * | 1989-04-24 | 1989-06-15 | Drücker, Otto, 4830 Gütersloh | Gerät zum Abziehen von Klebebändern |
| DE19700464A1 (de) * | 1997-01-09 | 1998-07-16 | Idea Productservice Gmbh | Verfahren für die Herstellung eines doppelseitig klebenden Bandes sowie Verfahren zur Durchführung des Verfahrens |
| DE29706115U1 (de) * | 1997-04-07 | 1997-07-03 | Drücker, Otto, 33334 Gütersloh | Zweilagiges Doppelklebband mit einer Klebekomponente A und einer Klebekomponente B |
| DE29821796U1 (de) * | 1998-12-07 | 1999-12-09 | Goldau, Siegfried, 57258 Freudenberg | Abziehvorrichtung für Klebebänder |
| US20040238109A1 (en) * | 2003-03-06 | 2004-12-02 | Gonzalez George C. | Masking tape tool/dispenser |
| US9150377B2 (en) * | 2013-07-09 | 2015-10-06 | Shadrach J. Gibson | Double-sided tape dispenser |
| DE102014208109A1 (de) * | 2014-04-29 | 2015-10-29 | Tesa Se | Spaltbares Klebend mit dosierfähigen spaltbaren Flüssigklebstoff |
-
2016
- 2016-07-15 DE DE102016212954.6A patent/DE102016212954A1/de not_active Withdrawn
-
2017
- 2017-07-13 WO PCT/EP2017/000833 patent/WO2018010844A1/de not_active Ceased
- 2017-07-13 EP EP17745121.8A patent/EP3484800B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016212954A1 (de) | 2018-01-18 |
| EP3484800B1 (de) | 2023-01-04 |
| WO2018010844A1 (de) | 2018-01-18 |
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