EP2329889A1 - Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire - Google Patents

Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire Download PDF

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Publication number
EP2329889A1
EP2329889A1 EP09178093A EP09178093A EP2329889A1 EP 2329889 A1 EP2329889 A1 EP 2329889A1 EP 09178093 A EP09178093 A EP 09178093A EP 09178093 A EP09178093 A EP 09178093A EP 2329889 A1 EP2329889 A1 EP 2329889A1
Authority
EP
European Patent Office
Prior art keywords
wax
hot
melt adhesive
strand
coated
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Withdrawn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
EP09178093A
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German (de)
English (en)
Inventor
Rüdiger Siems
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.)
Sika Technology AG
Original Assignee
Sika Technology AG
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 Sika Technology AG filed Critical Sika Technology AG
Priority to EP09178093A priority Critical patent/EP2329889A1/fr
Priority to PCT/EP2010/068436 priority patent/WO2011067213A1/fr
Priority to EP10794918A priority patent/EP2506987A1/fr
Publication of EP2329889A1 publication Critical patent/EP2329889A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/02—Polymeric substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber

Definitions

  • the invention relates to the field of hot-melt adhesives and their application.
  • Hot-melt adhesives have been used for a long time. Hotmelt adhesives are characterized in that they are melted at an elevated temperature, typically above 100 ° C., and melted onto the substrate to be bonded. By melting, the viscosity during application is very low and can be easily processed. Upon cooling, the hot melt adhesive becomes solid (amorphous and sometimes crystalline). This solidification process takes place in a very short time and is primarily responsible for the bonding. If the hot-melt adhesive is a so-called non-reactive hot-melt adhesive, the bond can be released again by heating the bond above the melting point of the hotmelt adhesive. This can be advantageous depending on the purpose or even disadvantageous.
  • reactive hotmelt adhesive Since usually a bond due to heat influence should not be solvable, especially if the influence of heat does not occur planned, so-called reactive hotmelt adhesive were increasingly used.
  • the application is the same as for the non-reactive hot melt adhesives.
  • the adhesive is crosslinked by a curing reaction, in particular by means of atmospheric moisture, so that the crosslinked hotmelt adhesive no longer melts upon heat exposure and the adhesive bond is retained even in the heat.
  • hot melt adhesive usually a block, usually sealed in a plastic bag or siliconized cardboard, stored and transported.
  • the melting of such hot-melt adhesive blocks has some disadvantages. For example, the process of melting takes a long time and, on the other hand, the heat applied to the outer portion of the block can cause long term heat on the block to damage the adhesive, even destroy it.
  • EP 1 330 391 B1 It is proposed to pour molten hotmelt adhesive into a tube of thermoplastic material.
  • a disadvantage of this method is that there is a risk that trapped in the adhesive air bubbles or air gaps are present, which can lead to problems in a machine promotion.
  • the object of the present invention is therefore to provide a process for producing hot-melt adhesive strands coated with wax, which is as simple as possible and which ensures that the wax coating is made as dense and dense as possible.
  • the process is very easy to implement and provides an easy way to produce high quality wax coatings.
  • the present invention relates, in a first aspect, to a process for producing a hot-melt adhesive strand coated with wax.
  • hot-melt adhesive is basically any common hot-melt adhesive suitable.
  • the advantages of the present invention are particularly noticeable when the hot-melt adhesive has a sticky surface at room temperature or the tack persists for a certain time.
  • the hotmelt adhesive is a reactive hotmelt adhesive.
  • hot melt adhesives are referred to which reactive groups, ie isocyanate groups and / or alkoxysilane and / or acyloxysilane containing, which give rise to crosslinking under the influence of water, in particular in the form of humidity.
  • alkoxysilane groups are groups of the formula (Ia) and as acyloxysilane groups are meant groups of the formula (1b).
  • R 1 is an alkyl radical having 1 to 4 C atoms, in particular a methyl or ethyl group, preferably a methyl group.
  • R 2 is an alkyl radical having 1 to 6 C atoms, in particular a methyl group.
  • a stands for a value of 0 or 1, in particular for 0.
  • the reactive hotmelt adhesive is preferably a reactive hotmelt adhesive based on polyurethanes or polyolefins.
  • the hotmelt adhesive is preferably a reactive hotmelt adhesive which contains isocyanate-containing polyurethane prepolymers.
  • the hot-melt adhesive is preferably a reactive hot-melt adhesive containing alkoxysilane-containing polyurethane prepolymers or alkoxysilane-containing polyolefins, in particular alkoxysilane-containing atactic poly- ⁇ -olefins (APAO), preferably silane-grafted atactic poly- ⁇ -olefins (APAO).
  • APAO alkoxysilane-containing atactic poly- ⁇ -olefins
  • APAO silane-grafted atactic poly- ⁇ -olefins
  • the hotmelt adhesive is a non-reactive hotmelt adhesive.
  • Such hot melt adhesives have no reactive groups, i. no isocyanate groups and / or alkoxysilane groups and / or acyloxysilane groups.
  • Hot non-reactive adhesives which are especially homopolymers or copolymers of unsaturated monomers, in particular from the group consisting of ethylene, propylene, butylene, isobutylene, isoprene, vinyl acetate and alkyl (meth) acrylates, in particular polyethylenes (PE), polypropylenes (PP), are used as non-reactive hotmelt adhesive.
  • Polyisobutylenes Polyisobutylenes, ethylene vinyl acetate copolymers (EVA), styrene-isoprene-styrene copolymers (SIS), styrene-butadiene-styrene copolymers (SBS) and atactic poly- ⁇ -olefins (APAO), or consisting essentially thereof.
  • EVA ethylene vinyl acetate copolymers
  • SIS styrene-isoprene-styrene copolymers
  • SBS styrene-butadiene-styrene copolymers
  • APAO atactic poly- ⁇ -olefins
  • the hot-melt adhesive is particularly preferably a non-reactive hotmelt adhesive and most preferably it is a non-reactive hotmelt adhesive which comprises ethylene-vinyl acetate copolymers (EVA) and / or styrene-isoprene-styrene copolymers (SIS) and / or styrene-butadiene-styrene copolymers (US Pat. SBS) and / or atactic poly- ⁇ -olefins (APAO).
  • EVA ethylene-vinyl acetate copolymers
  • SIS styrene-isoprene-styrene copolymers
  • US Pat. SBS styrene-butadiene-styrene copolymers
  • APAO atactic poly- ⁇ -olefins
  • the hot-melt adhesive is not brittle at room temperature and in particular is flexible.
  • Advantageous is an elongation at break at room temperature of 0.5% to 2000%, in particular from 50% to 1000%, measured before any moisture curing of the hot-melt adhesive according to DIN EN 53504.
  • the hot-melt adhesives typically have a melting point between 50 and 170 ° C, in particular between 80 and 160 ° C, on. Since hot-melt adhesives are polymers, the melting point in the present document is understood to mean the softening temperature, which is typically determined by the Ring & Ball method according to DIN ISO 4625.
  • the hotmelt adhesive is melted.
  • the adhesive temperature is in particular not more than 50 ° C, in particular not more than 30 ° C, above the melting point of the hotmelt adhesive.
  • conventional melting plants are used.
  • the hot-melt adhesive required for this purpose is supplied to the melting plant in the form of granules or blocks. In many cases, a barrel melter can be used for the melting, as they are known in the art.
  • hot melt adhesive melting in step i) is defined as including also a hot melt hot melt adhesive prepared in the melt in a molten state.
  • a freshly prepared hotmelt adhesive does not first have to be cooled below the melting point after production and then melted again, but it can be used directly as a melt.
  • the molten hotmelt adhesive is formed into a hotmelt adhesive strand.
  • This is typically done by passing a nozzle, in particular by extrusion of the hotmelt adhesive through an extrusion orifice.
  • the shape and diameter of the hotmelt adhesive strand can be significantly influenced by the shape and type of the nozzle.
  • the adhesive temperature has the melting temperature or in the range of the melting temperature, ie melting temperature ⁇ 20 ° C, in particular ⁇ 10 ° C. If the hotmelt adhesive strand is formed under pressure on the adhesive, adhesive temperatures are below the adhesive melting temperature quite possible and sometimes even preferred. Namely, it is preferable that the hotmelt adhesive strand has a certain dimensional stability.
  • This dimensional stability is also achieved by cooling the hotmelt adhesive strand to a surface temperature below the melting point of the hotmelt adhesive in step iii). This cooling can be done by air or by passing a liquid medium.
  • the cooling in step iii) is preferably carried out in a cooling bath, in particular a water bath.
  • the hot-melt adhesive strand after step iii) is still flexible, in particular so flexible that it can be deflected via deflecting rollers without it breaking.
  • the hotmelt adhesive strand passes through a wax bath with molten wax.
  • suitable waxes are, on the one hand, vegetable or animal waxes, such as, for example, beeswax or lanolin, and, on the other hand, petrochemical waxes, such as, for example, paraffin or hydrocarbon waxes, or synthetic waxes, such as, for example, polyalkylene waxes or polyethylene glycol waxes.
  • waxes have a melting point of 50-90.degree. C., in particular 60-80.degree. Above the melting point, the viscosity of the wax is very low, typically below 1 Pas, preferably below 50 mPas.
  • the wax bath can be essentially entirely of molten wax.
  • the wax bath also contains water.
  • a wax bath containing water is advantageous insofar as that the temperature stability can be ensured more easily due to the large heat capacity of water. Furthermore, in this case, significantly less wax can be used than would be the case in a pure wax bath. Due to the immiscibility of water and molten wax, the wax floats on the surface of the wax bath, or a wax-in-water or water-in-wax emulsion can be prepared using a dispersing stirrer. In the latter case, the wax bath furthermore preferably contains emulsifiers and / or surfactants. It is advantageous that such wax / water emulsions are formed as homogeneously as possible. This can be supported for example by the use of stirring.
  • the wax bath can store enough wax, that for a certain period of time, at least for two to three hours, no wax must be supplied in order to replace the wax removed by the wax coating of the hot melt adhesive strand from the wax bath.
  • the temperature of the wax bath is chosen so that, although the wax is melted, it is not so high that it comes close to the melting point of the hotmelt adhesive. It is namely to prevent that the hot melt adhesive strand is changed too much in its shape by melting, or that hot melt adhesive migrate into the wax bath or dissolves in wax in large quantities. It is therefore preferred that the temperature is at most 10 ° C higher than the melting temperature of the wax.
  • the container of the wax bath is formed open at the top.
  • the hotmelt adhesive strand is fed to the wax bath. This can be done by feeding through a side opening. However, this leads to significant sealing problems in the wax bath. It is therefore particularly preferred if the hot-melt adhesive strand of the wax bath from above dives into the wax bath from an air environment, goes through the wax bath and leaves the wax bath again.
  • the hot-melt adhesive strand is preferably between 5 mm and 5 cm, in particular between 8 mm and 3 cm, thick.
  • step v) the hot-melt adhesive strand, on whose surface wax adheres, leaves the wax bath.
  • a hot-melt adhesive strand coated with wax is formed.
  • the hotmelt adhesive strand which is surface-coated by the contact with the wax, can leave the wax bath at some point.
  • a lateral outlet opening which is preferably arranged on the side of the wax bath or of the wax bath container lying opposite the inlet opening.
  • the hot-melt adhesive strand leaves the wax bath while penetrating a wax / air phase boundary.
  • This embodiment is particularly for the case that in the wax bath the molten wax floats on water.
  • wax adheres to the surface of the hot melt adhesive strand and thus leads to the formation of a wax jacket of the hot melt adhesive strand.
  • the layer thickness of the wax-coated hotmelt adhesive strand wax can be made very different and depends, for example, greatly on the wax bath temperature, the wax used, the hotmelt adhesive composition, and the rate at which the hotmelt adhesive strand is drawn through the wax bath.
  • the layer thickness of the wax of the coated with wax hotmelt adhesive strand is advantageously between 1 and 100 microns. If the layer thickness is much smaller, problems with the residual tackiness of the surface can occur. If the layer thickness is considerably thicker, the wax content may become too high, in particular with the preferred hotmelt adhesive strand diameters, which may adversely affect the mechanical and adhesive properties of the hotmelt adhesive composition.
  • the proportion of the wax coating on the weight of the hot-melt adhesive strand coated with wax is at most 1% by weight, in particular between 0.05 and 0.8% by weight.
  • step vi) the hot-melt adhesive strand is cooled.
  • This cooling is carried out at a temperature which is below the melting point of the wax. This temperature is advantageously room temperature.
  • the cooling can be done by air or in particular by a cooling bath.
  • Preferred cooling bath is a temperature-controlled water bath.
  • the process is designed such that the hot-melt adhesive strand formed after step ii) passes through the individual stations of process steps iii), iv), v) and vi) without separation. This is achieved in particular by pulling the strand cooled after step vi). It has proven particularly suitable if the tensile force is exerted on the hotmelt adhesive strand by rotating a roll on which the strand is wound up.
  • a hot melt adhesive strand wrapped on a roll and wrapped in a roll is ideal for storing and transporting a hotmelt adhesive strand.
  • the hot-melt adhesive strand after step v) has a substantially rectangular cross-section.
  • a transformation of the hot-melt adhesive strand can be done in particular by deflection rollers.
  • By appropriate arrangement of the pulleys can be used by acting on the hot melt adhesive strand tensile force to produce the desired cross-sectional profile. This is particularly the case when the temperature of the hot melt adhesive strand is not yet too far below the melting point of the hot melt adhesive, i. as long as the hot-melt adhesive is still soft and consequently still plastically deformable.
  • the hotmelt adhesive is a reactive hotmelt adhesive
  • water is not suitable as a component of the cooling bath in step iii), the wax bath in step iv) and / or the cooling bath in step vi), since the reactive hotmelt adhesive would react with the water and the hotmelt adhesive undesirably and chemically modified.
  • the hot-melt adhesive strand coated with wax can also be placed in a container, for example in a barrel. It is advantageous in this case if the hot-melt adhesive strand is stored in this container in a space-saving manner, for example in the form of superimposed spiral shapes. It is also advantageous if this storage takes place in the form of the longest possible strand. In other words, it is desirable that in a container as long as possible single strand is stored (a so-called "endless strand"). The coated with wax hot melt adhesive strand can without affecting its properties over a long time be stored easily.
  • the hotmelt adhesive strand Due to the hydrophobic properties of the wax coating, the hotmelt adhesive strand is particularly well and efficiently protected against the influence of moisture, especially in the form of water in the gaseous state. Strands of reactive hot-melt adhesives, which indeed have functional groups which crosslink under the influence of water, are particularly efficiently protected from the influence of water. If necessary, the hot-melt adhesive strand coated with wax can be easily used for bonding. It was found that the coated with wax hot-melt adhesive strand does not stick even after prolonged storage, for example in the form of a roll.
  • another aspect of the present invention is a package consisting of a container as a package and a wax-coated hotmelt adhesive strand prepared by a process as previously described in detail as a packaged product.
  • Another aspect of the present invention is the use of a wax-coated hotmelt adhesive strand, as previously described, for bonding substrates.
  • the hot-melt adhesive strand coated with wax must be heated to a temperature above the melting point of the hot-melt adhesive. In particular, it is not necessary for the wax coating to be removed beforehand. Due to the fact that the hotmelt adhesive strand is able to easily absorb a certain amount of wax in the molten state without greatly adversely affecting the mechanical properties and adhesive properties, the wax of the wax coating is absorbed by the adhesive without further measures. With increasing ratio of wax to hot-melt adhesive, it may be appropriate to use a mixer, for example a static mixer, to ensure the most homogeneous possible incorporation of the wax into the adhesive.
  • the molten hot-melt adhesive can be applied in a manner customary for hotmelt adhesives and thus substrates are glued together.
  • the present invention also relates to a method for applying a hot-melt adhesive, in which a previously described coated with wax hot-melt adhesive strand is fed directly to a melting device of a hot-melt adhesive application device.
  • This feeding takes place in particular of a roll or a pack, as described above.
  • Such a method is advantageous because it is very simple and efficient.
  • hot melt adhesive can be used continuously for a long time. If the adhesive tends to run low, a new roll or package can be conveniently provided and a change seamlessly initiated.
  • the hot-melt adhesive application devices which can be used within the scope of this invention mean less space than those devices which are required for the applications of conventional hot-melt adhesives.
  • the hot melt adhesive application device may be, for example, a hot melt adhesive application gun or a hot melt adhesive application roll or hot melt adhesive application squeegee.
  • the hot-melt adhesive application device typically has, in addition to a melting device, also a nozzle, doctor blade or application slot nozzle, sometimes a mixer, in particular a static mixer with a mounted or integrated nozzle.
  • FIG. 1 shows a schematic cross section through a plant 11 for producing a hot-melt adhesive strand 1 covered with wax.
  • the hot-melt adhesive 2 is melted in step i). This takes place in a melting unit 12 suitable for the first step.
  • step ii) the molten hot-melt adhesive is formed into one Hot Melt Adhesive Strand 3.
  • a nozzle 13 is used.
  • the hot-melt adhesive is a non-reactive hot-melt adhesive based on an atactic poly- ⁇ -olefin (APAO) with a melting point of 140 ° C.
  • APAO atactic poly- ⁇ -olefin
  • the hotmelt adhesive strand 3 thus formed is cooled in step iii) to a surface temperature below the melting point of the hotmelt adhesive.
  • the hot melt adhesive strand 3 leaving the nozzle 13 is fed via deflection rollers 14 to a cooling bath 15.
  • the cooling bath is a heated to 80 ° C water bath.
  • the hotmelt adhesive strand 3 After cooling of the hotmelt adhesive strand 3, it is introduced via deflection rollers 14 in a wax bath 4 with molten wax 5 and passes through this.
  • the wax bath 4 consists of water and molten wax which floats on the surface of the water; the wax here is a paraffin wax with one with a melting point of 65 ° C and the wax bath is water-heated to 70 ° C; the hot-melt adhesive strand is fed here by deflection rollers 14 the wax bath 4 from above and discharged upwards; and in each case the wax bath 4 is penetrated under the phase boundary 19 wax / air.
  • step v) the hotmelt adhesive strand, to the surface of which wax 5 adheres, leaves the wax bath 4 to form a hotmelt adhesive strand 1 covered with wax.
  • the layer thickness of the wax coating is 60 microns.
  • step vi) the wax-coated hotmelt adhesive strand 1 is cooled to a temperature which is below the melting point of the wax 5.
  • a second cooling bath 15 ' which is a water bath heated to 30 ° C., is used for this purpose; and the coated with wax hot melt adhesive strand 1 is redirected via pulleys 14 in this.
  • the hotmelt adhesive strand 1 coated with wax is added in step vii) a roll 6 rolled up.
  • the Trowickelière, or rotational speed of the role which is controlled by computer so that the hot melt adhesive strand, which as described above after its formation in step ii) unseparated by the individual stations of process steps iii), iv), v) and vi), acting force is adjusted so that the hotmelt adhesive strand 3, or the wax-encapsulated hotmelt adhesive strand, in a desired manner, in particular with respect to a constant thickness (both strand thickness and Wachsumhüllungsdicke) and geometry produced. It must also be ensured that, above all, the hotmelt adhesive strand does not break off in step ii).
  • the winding speed depends in particular on the temperatures and materials selected throughout the process.
  • the rolled-up hot-melt adhesive strand thus wound can be stored for a long time without problems.
  • the roll can be easily transported to the place of use where the hot melt adhesive strand 1 can then be unrolled easily, in particular without gluing the roll (so-called blocking) and can be fed to a bonding station.
  • FIGS. 2a and 2b each show a schematic cross section through a covered with wax hot melt adhesive strand.
  • FIG. 2a is an embodiment with round cross section listed and in FIG. 2b an embodiment with rectangular cross section is listed.
  • the hot-melt adhesive strand 3 is in the wax bath 4 as in Fig.1 described wrapped with wax 5.
  • the thickness of the wax coating is advantageously between 1 and 100 microns and the proportion of the wax coating on the weight of the coated with wax hotmelt adhesive strand maximum of 1 wt .-%.
  • the thickness of the wax envelope is not shown to scale in the embodiments shown here.
  • the rectangular strand cross-section can be formed on the one hand by a substantially rectangular nozzle 13 already in step ii).
  • the strand can, for example after step ii) first have a round cross section, which is advantageous in terms of cleaning maintenance, and can then by forming, in particular forming over deflection rollers 14, depending on the softness, or formability of the strand 3, or 1, in steps iii), iv), v) and possibly vi).
  • the strand can be successively deflected over orthogonal rollers and due to the train pressure acting on the strand, or contact pressure on the pulleys, plastically deform so that a substantially rectangular cross-section is formed.
  • FIGS. 2c and 2d a schematic partial cross-section through a roll of wax-coated hot melt adhesive strand.
  • Figure 2c is a strand with a round cross section, as in Fig. 2a described, and in Figure 2c is a strand of rectangular cross section, as in Fig. 2b described, shown. It turns out that a wax-coated hotmelt adhesive strand can be rolled up much more space-saving, since when rolling strands having a rectangular cross-section, there are substantially no air gaps 18.
  • Figure 3a and 3b show a further preferred way of storing a wax-coated hotmelt adhesive strand 1.
  • the wrapping of wax 4 is not shown for reasons of simplicity of drawing.
  • a packing 7 consists of a container 8 as a package and a hot-melt adhesive strand 1 wrapped with wax as packaged goods, which is packed according to a previously described method, in particular as in FIG. 1 was prepared.
  • the hot-melt adhesive strand 1 enveloped with wax is laid spirally into a barrel 8, as an example of a container 8.
  • the stack of individual interconnected spirals are made so that the spirals alternately “from inside to outside” and “from outside to inside” wound, ie the spirals is alternately the starting point of a spiral in the periphery of the spiral layer, while the starting point of the next spiral is in the middle of the spiral.
  • This type of barrel filling is shown in schematic longitudinal section through a pack 7 in FIG. 3a shown schematically.
  • FIG. 3b shows a schematic cross section through a pack 7 along the line AA in FIG. 3a ,
  • the spiral is Shape of the stratification of the hot-melt adhesive strand 1 enveloped in the wax within the barrel 8, particularly clearly visible.
  • FIG. 4 In the embodiment shown here, the hot-melt adhesive strand 1 coated with wax is unrolled from a roll 6 and fed directly to the melting device 9 of the hot-melt adhesive application device 10.

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  • Adhesives Or Adhesive Processes (AREA)
EP09178093A 2009-12-04 2009-12-04 Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire Withdrawn EP2329889A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09178093A EP2329889A1 (fr) 2009-12-04 2009-12-04 Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire
PCT/EP2010/068436 WO2011067213A1 (fr) 2009-12-04 2010-11-29 Procédé de production d'un cordon d'adhésif thermofusible enveloppé de cire
EP10794918A EP2506987A1 (fr) 2009-12-04 2010-11-29 Procédé de production d'un cordon d'adhésif thermofusible enveloppé de cire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09178093A EP2329889A1 (fr) 2009-12-04 2009-12-04 Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire

Publications (1)

Publication Number Publication Date
EP2329889A1 true EP2329889A1 (fr) 2011-06-08

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EP09178093A Withdrawn EP2329889A1 (fr) 2009-12-04 2009-12-04 Procédé de fabrication d'un tronçon de colle à fondre chaude enveloppée avec de la cire
EP10794918A Withdrawn EP2506987A1 (fr) 2009-12-04 2010-11-29 Procédé de production d'un cordon d'adhésif thermofusible enveloppé de cire

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EP10794918A Withdrawn EP2506987A1 (fr) 2009-12-04 2010-11-29 Procédé de production d'un cordon d'adhésif thermofusible enveloppé de cire

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WO (1) WO2011067213A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020127348A1 (fr) * 2018-12-19 2020-06-25 Tesa Se Procédé de production d'un filament de colle et filament de colle
CN111331806A (zh) * 2018-12-19 2020-06-26 德莎欧洲股份公司 制造胶粘剂丝的方法和胶粘剂丝

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US5160686A (en) * 1990-06-04 1992-11-03 National Starch And Chemical Investment Holding Corporation Method of producing a non-tacky hot melt adhesive containing package
US5865927A (en) * 1994-06-30 1999-02-02 National Starch And Chemical Investment Holding Corporation Process for coating hot melt adhesives
US6120899A (en) * 1997-10-08 2000-09-19 H. B. Fuller Licensing & Financing Inc. Hot melt adhesive pellet comprising continuous coating of pelletizing aid
US6228902B1 (en) * 1994-03-02 2001-05-08 Exxon Chemical Patents, Inc. Tacky polymer particle anti-stick additive
WO2001079111A1 (fr) * 2000-04-14 2001-10-25 Westport Trading Company, Inc. Procede et appareil permettant l'application continue d'un adhesif thermofusible

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US6155029A (en) 1999-11-02 2000-12-05 Jain; Surendra Packaging of hot melt adhesives
CA2448664A1 (fr) 2000-11-04 2002-08-08 National Starch And Chemical Investment Holding Corporation Emballage de formulations d'adhesifs thermofusibles a faible temperature d'application

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EP0115307A2 (fr) * 1983-01-28 1984-08-08 National Starch and Chemical Corporation Procédé de préparation d'adhésifs fusiblesà chaud exempts de bloquage
US5160686A (en) * 1990-06-04 1992-11-03 National Starch And Chemical Investment Holding Corporation Method of producing a non-tacky hot melt adhesive containing package
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020127348A1 (fr) * 2018-12-19 2020-06-25 Tesa Se Procédé de production d'un filament de colle et filament de colle
CN111331806A (zh) * 2018-12-19 2020-06-26 德莎欧洲股份公司 制造胶粘剂丝的方法和胶粘剂丝
EP3680301A3 (fr) * 2018-12-19 2020-09-23 tesa SE Procédé de fabrication d'un filament adhésif et filament adhésif
CN113423793A (zh) * 2018-12-19 2021-09-21 德莎欧洲股份公司 用于制造胶粘剂丝的方法和胶粘剂丝
US20220072789A1 (en) * 2018-12-19 2022-03-10 Tesa Se Method for producing an adhesive filament, and adhesive filament
CN113423793B (zh) * 2018-12-19 2024-01-09 德莎欧洲股份公司 用于制造胶粘剂丝的方法和胶粘剂丝

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WO2011067213A1 (fr) 2011-06-09

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