EP4001504B1 - Rohpapier, seine verwendung und mehrschichtstruktur - Google Patents
Rohpapier, seine verwendung und mehrschichtstruktur Download PDFInfo
- Publication number
- EP4001504B1 EP4001504B1 EP20208279.8A EP20208279A EP4001504B1 EP 4001504 B1 EP4001504 B1 EP 4001504B1 EP 20208279 A EP20208279 A EP 20208279A EP 4001504 B1 EP4001504 B1 EP 4001504B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base paper
- laminates
- range
- weight
- thermosetting resin
- 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.)
- Active
Links
- 229920005989 resin Polymers 0.000 claims description 70
- 239000011347 resin Substances 0.000 claims description 70
- 229920001187 thermosetting polymer Polymers 0.000 claims description 40
- 229920005610 lignin Polymers 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 12
- 238000005470 impregnation Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- 239000000123 paper Substances 0.000 description 102
- 239000000047 product Substances 0.000 description 30
- 238000004519 manufacturing process Methods 0.000 description 17
- 238000010521 absorption reaction Methods 0.000 description 13
- 239000002655 kraft paper Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004537 pulping Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000962 poly(amidoamine) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/23—Lignins
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
Definitions
- the present invention relates to a base paper, its use, and a multilayer structure comprising at least one layer made from said base paper, according to the preambles of the enclosed claims.
- Atypical laminate structure may comprise a base or core, possibly a decorative paper layer(s) arranged on the base or core and finally an overlay layer.
- the base or core may be a material board, such as a particle board, fibreboard or the like, or the base or core may be formed from a number of layers of core paper or base paper that have been permanently attached together during the manufacture of laminate structure, i.e. multilayer structure of multilayer product.
- the laminate structure In case the base or core of the laminate structure comprises a material board, the laminate structure usually comprises one or several layers of base paper between the material board and the possible decorative layer(s) and the overlay layer.
- Other multilayer products are, for example, evaporative cooling pads.
- multilayered products, such as laminate structures usually thus comprise multiple layers of base paper, which usually is an absorbent kraft paper.
- the layers may be attached together by a thermosetting resin which is cured during the manufacture of the multilayer product or structure.
- the individual base or core paper layers and the decorative paper layers are impregnated with the thermosetting resin, the layers are stacked in the desired order, pressed together and the resin is cured, resulting the final multilayer product or structure, such as laminate structure.
- the used core or base paper absorbs resin effectively and uniformly.
- lignin-based resins could provide a sustainable alternative to petroleum-based polymers, as they are at least partly based on renewable sources and they can be manufactured by using raw-materials that otherwise might be considered as waste and incinerated.
- lignin-based resins have not worked properly with the available base papers, and this have limited or prevented their use in these applications. Lignin-based resins have not been uniformly absorbed into the base paper, and a resin poor area has been formed in the middle of the base paper. As the consequence of the non-uniform resin absorption, the attachment of the layers during the manufacture of the multi-layered structures and products has been inadequate, which have resulted failed and/or non-usable structures or products.
- An object of this invention is to minimise or possibly even eliminate the disadvantages existing in the prior art.
- Another object of the present invention is to provide a base paper, which shows improved properties in a manufacture of multi-layered structures or products, especially a good ability to absorb resin uniformly.
- Another object of the present invention is to provide a base paper, which is especially suitable for use with at least partly lignin-based thermosetting resins in manufacture of multilayer products.
- a typical base paper according to the present invention for producing multilayer structure or multilayer product, such as laminate structure comprises cellulosic fibre material and has
- a typical multilayer structure according to the present invention comprises at least one layer made from a base paper according to the invention impregnated with a thermosetting resin comprising lignin.
- thermosetting resin especially a lignin-based thermosetting resin
- a lignin-based thermosetting resin into the base paper
- the base paper has a bulk density value ⁇ 590 kg/m 3 , a Bendtsen roughness value ⁇ 800 ml/min, and a Gurley porosity value ⁇ 15 s/100 ml, sometimes ⁇ 10 s/100 ml or ⁇ 5 s/100 ml.
- Gurley porosity value ⁇ 15 s/100 ml, sometimes ⁇ 10 s/100 ml or ⁇ 5 s/100 ml.
- thermosetting resins especially at least partly lignin-based thermosetting resins, throughout the base paper layer, while the absorbed resin amount is maintained at a proper level.
- the present invention solves many of the problems that have this far limited or prevented the use of lignin-based thermosetting resins in manufacture of multi-layered products, such as laminates.
- the present invention enables uniform absorption of thermosetting resin, especially at least partly lignin-based thermosetting resin, throughout the base paper. This means that a high resin content can be attained even in the middle region of the base paper, and a uniform or nearly uniform absorption profile for the thermosetting resin can be achieved throughout the base paper.
- the base paper has a first large surface and a second large surface, which are parallel with each other. The distance between the first and the second surface defines the thickness of the base paper.
- the base paper may comprise a first edge region, a second edge region and a middle region extending between the first edge region and the second edge region.
- the first edge region extends from the first large surface of the base paper in the thickness direction towards the middle region of the base paper and the second edge region extends from the second large surface of the base paper in the thickness direction towards the middle region of the base paper.
- the respective edge region usually comprises 15 % of the thickness of the base paper
- the middle region usually comprises 70 % of the thickness of the base paper.
- the base paper is impregnated with a thermosetting resin, preferably a thermosetting resin comprising lignin, i.e. at least partly lignin-based thermosetting resin.
- concentration of the thermosetting resin in the first and second edge regions is essentially the same as in the middle region.
- the difference in concentration of the thermosetting resin between the first and second edge regions and the middle region is at most 30 %, preferably at most 20 %, sometimes at most 10 %.
- the difference in concentration of the thermosetting resin between the first and second edge regions and the middle region may be less than 15 % or even less than 5 %.
- the multilayer structure or multilayer product preferably a laminate structure, which comprises at least one layer made from base paper according to the present invention, may comprise at least 10 weight-%, preferably at least 20 weight-%, of thermosetting resin, especially thermosetting resin comprising lignin, i.e. at least partly lignin-based resin.
- the resin content in the multilayer structure or product in percentages is determined by calculating the weight difference between the impregnated base paper (structure/product) and unimpregnated base paper (structure/product), whereafter the weight difference is divided by the weight of the impregnated base paper (structure/product) and multiplied with 100. All weights are given as dry weights.
- the base paper according to the present invention is especially suitable for impregnation or absorption with a thermosetting resin comprising lignin, i.e. at least partly lignin-based resin.
- the thermosetting resin solution, which is used to impregnate the base paper may comprise at least 4 weight-%, preferably 8 weight-%, more preferably at least 12 weight%, of lignin, calculated from the total weight of the resin solution.
- the term "base paper” denotes a paper made from cellulosic fibre material and intended for use as a layer in a multilayer structure or product, such as laminate structure.
- the base paper comprises bleached and/or unbleached cellulosic fibre material, preferably unbleached cellulosic fibre material obtained by kraft pulping.
- the cellulosic fibre material may comprise virgin cellulosic fibres and/or recycled cellulosic fibres.
- the cellulosic fibre material may comprise cellulosic fibres obtained by mechanical pulping methods and/or cellulosic fibres originating from kraft pulping of sawdust.
- the cellulosic fibre material comprises unbleached cellulosic fibres, recycled cellulosic fibres and/or cellulosic fibres originating from kraft pulping of sawdust.
- the cellulosic fibre material may comprise 0 - 100 weight-%, preferably 10 - 90 weight-% or 25 - 75 weight-%, of unbleached cellulosic fibres, and/or 0 - 100 weight-%, preferably 10 - 90 weight-% or 25 - 75 weight-%, of recycled cellulosic fibres.
- the base paper may have a bulk density value ⁇ 590 kg/m 3 or ⁇ 555 kg/m 3 , preferably ⁇ 550 kg/m 3 , more preferably ⁇ 540 kg/m 3 , sometimes even ⁇ 525 kg/m 3 .
- the base paper may have a bulk density value in a range of 425 - 590 kg/m 3 or 440 - 555 kg/m 3 , preferably 450 - 550 kg/m 3 , more preferably 475 - 540 kg/m 3 . It has been observed that the bulk density of the base paper may be significantly lower compared to conventional base papers, where the bulk values are typically round 600 - 680 kg/m 3 .
- the low bulk value of the base paper when combined with the selected porosity values, unexpectedly improves the absorption, i.e. impregnation of the thermosetting resin, especially at least partly lignin-based thermosetting resin, into the base paper. Improved resin impregnation enables smooth and effective operation of the manufacturing process for the multilayer structure or product, as well as enables the production of stronger and qualitatively more uniform and satisfactory structures or products.
- the bulk values are measured by using standard ISO 534:2005.
- the base paper may have a Bendtsen roughness value ⁇ 800 ml/min, preferably ⁇ 900 ml/min, more preferably ⁇ 950 ml/min.
- the base paper may have the Bendtsen roughness value in the range of 800 - 1300 ml/min, preferably 900 - 1200 ml/min, more preferably 950 - 1150 ml/min.
- Bendtsen roughness indicates the smoothness of the base paper surface. Conventionally, it has been assumed that the base paper should have a smooth surface, i.e. relatively low Bendtsen roughness value.
- thermosetting resins having a large molecular size such as at least partly lignin-based thermosetting resins, are more easily absorbed when the Bendtsen roughness of the base paper is within the selected range.
- the Bendtsen roughness values are measured by using standard ISO 8791-2:1990 part 2.
- the base paper may have a Gurley porosity value ⁇ 15 s/100 ml, preferably in the range of 1 - 15 s/100 ml, more preferably 2 - 12.5 s/100 ml, even more preferably 4-8 s/100 ml.
- the base paper may have a Gurley porosity value in the range of 3 - 9 s/100 ml, preferably 4 - 8 s/100 ml, more preferably 5 - 7 s/100 ml.
- the base paper may have a Gurley porosity value even in the range of 7 - 13 s/100 ml, preferably 8 - 12 s/100 ml, more preferably 9-11 s/100 ml.
- the base paper may have a Gurley porosity value ⁇ 5 s/100 ml, preferably ⁇ 4.5 s/100 ml, more preferably ⁇ 4 s/100 ml.
- the Gurley porosity value may be in the range of 1 - 5 s/100 ml, preferably 1.5-4.5 s/100 ml, more preferably 2 -4 s/100 ml.
- the Gurley porosity value describes the air permeability of the base paper.
- the base paper is able to absorb increased amounts of thermosetting resin, especially lignin-based thermosetting resin.
- the increased ability of the base paper to absorb resin ensures that the resin amount is sufficient during the pressing step in the manufacture of the multilayer product and the quality of the produced multilayer products is high.
- the defined Gurley porosity for the base paper enables the absorption of proper amounts of thermosetting resin into the base paper, the overall efficiency of the process is improved.
- the Gurley porosity values are measured by using standard ISO SCAN-P 19:78.
- the base paper may have a moisture content of 4 - 10 weight-%, preferably 4-8 weight-%, sometimes 5-8 weight-%.
- the moisture content is measured by using standard ISO 287:1985. It has been observed that the higher moisture content of the base paper further improves the absorption of the thermosetting resin into the base paper during the manufacture of multilayer products. At the same time, it is possible to achieve savings in energy consumption of the manufacturing process for the base paper as the drying need for the base paper in the process is reduced.
- the base paper may have a basis weight in a range of 30 - 350 g/m 2 .
- the base paper may preferably have a basis weight in a range of 30 - 120 g/m 2 , more preferably 40 - 100 g/m 2 .
- the basis weight is measured by using standard ISO 536:1995. The base paper according to this embodiment is thus especially suitable for manufacture of overlays.
- the base paper may have a basis weight in a range of 120 - 350 g/m 2 , preferably 150 - 300 g/m 2 .
- the base paper according to this embodiment is thus especially suitable for manufacture of high-pressure laminates (HPL).
- the base paper may preferably have a wet strength value at least 300 N/m, more preferably at least 350 N/m, even more preferably at least 400 N/m, sometimes even at least 450 N/m.
- the wet strength value is measured by using test method ISO 3781.
- Wet strength is an important property of the base paper, as it allows the effective absorption or impregnation of the base paper with the thermosetting resin.
- the base paper may comprise one or more suitable wet strength resins, such as polyamidoamine epichlorohydrin resins or glyoxylated polyacrylamide, which can be added to the cellulosic fibre material during the manufacture of the base paper.
- the base paper may comprise a wet strength resin in amount of at least 1 kg/ton paper (dry), preferably at least 2 kg/ton paper (dry), more preferably at least 4 kg/ton paper (dry).
- the base paper according to the present invention is suitable for producing multilayer structures or multilayer products, such as laminate structures.
- the base paper according to the present invention is especially suitable to be used for making a multilayer product selected from decorative high-pressure laminates, continuous pressed laminates, postform laminates, fire retardant laminates, compact laminates, drilling boards, electrotechnical laminates, and technical laminates.
- the base paper according to the present invention is further especially suitable for use as cushion pads used in laminate impregnation, evaporative cooling pads, as plywood films, or as surface films.
- the base paper according to the present invention can be manufactured as conventional in the art. By proper selection of process parameters at the press and drying sections as well as at the calandering, it is possible to produce base paper according to the present invention. The person skilled in the art is able to determine the required parameters with a few standard experiments. The present invention is not related to the manufacture of the base paper as such, but the specific combination of base paper properties providing unexpected advantages.
- Base paper was made from unbleached chemical pulps.
- the main raw material of base paper stock suspension was unbleached sawdust pulp.
- Another raw material used for the base paper stock suspension was recycled fibre originating from old corrugated cartons (OCC).
- Minimum virgin pulp quantity was 70 %.
- wet strength resin was added to furnish. Wet strength resin quantity was 4 kg/ton to reach the required wet strength.
- the headbox fed a very dilute stock suspension onto the wire.
- On the wire section as much water as possible was removed from the stock suspension fed from the headbox. Water was removed by means of gravity and suction.
- After the wire section paper web was pressed in a nip rolls and press felt, forcing water out of the paper to the felt.
- the dryer section comprised steam-heated drying cylinders. The dryer section was followed by a machine calender which adjusted the thickness and density of the produced base paper.
- Produced base paper had following properties:
- thermosetting lignin-based resin When impregnated with thermosetting lignin-based resin, it was observed that the absorption of the resin throughout the base paper was uniform, and no significant difference in resin content could be observed between the edge regions and the middle region of the base paper.
Landscapes
- Paper (AREA)
- Laminated Bodies (AREA)
Claims (15)
- Rohpapier zur Herstellung eines Mehrschichtprodukts, wie einer Laminatstruktur, wobei das Rohpapier Zellulosefasermaterial umfasst und Folgendes aufweist:- einen Schüttdichtewert von ≤590 kg/m3,- einen Bendtsen-Rauhigkeitswert von ≥800 ml/min, und- einen Gurley-Porositätswert von ≤15 s/100 ml.
- Rohpapier nach Anspruch 1, dadurch gekennzeichnet, dass das Rohpapier den Schüttdichtewert von ≤555 kg/m3, vorzugsweise in einem Bereich von 450 - 550 kg/m3, besonders bevorzugt von 475 - 540 kg/m3, aufweist.
- Rohpapier nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Rohpapier den Bendtsen-Rauhigkeitswert im Bereich von 800 - 1300 ml/min, vorzugsweise von 900 - 1200 ml/min, besonders bevorzugt von 950 - 1150 ml/min aufweist.
- Rohpapier nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Rohpapier den Gurley-Porositätswert von <15 s/100 ml, vorzugsweise im Bereich von 1 - 15 s/100 ml, besonders bevorzugt von 2 - 12,5 s/100 ml, noch bevorzugter von 4-8 s/100 ml aufweist.
- Rohpapier nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das Rohpapier den Gurley-Porositätswert von ≤5 s/100 ml, vorzugsweise im Bereich von 1 - 5 s/100 ml, besonders bevorzugt von 1,5 - 4,5 s/100 ml, noch bevorzugter von 2-4 s/100 ml aufweist.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 5, dadurch gekennzeichnet, dass das Rohpapier einen Feuchtigkeitsgehalt von 4 - 10 Gew.-%, vorzugsweise von 4-8 Gew.-%, aufweist.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 6, dadurch gekennzeichnet, dass das Rohpapier ein Flächengewicht im Bereich von 30 - 350 g/m2 aufweist.
- Rohpapier nach Anspruch 7, dadurch gekennzeichnet, dass das Rohpapier ein Flächengewicht im Bereich von 30-120 g/m2, vorzugsweise von 40-100 g/m2, aufweist.
- Rohpapier nach Anspruch 7, dadurch gekennzeichnet, dass das Rohpapier ein Flächengewicht im Bereich von 120 - 350 g/m2, vorzugsweise von 150 - 300 g/m2, aufweist.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 9, dadurch gekennzeichnet, dass das Rohpapier einen Nassfestigkeitswert von mindestens 300 N/m, vorzugsweise von mindestens 350 N/m, noch bevorzugter von mindestens 400 N/m, aufweist.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 10, dadurch gekennzeichnet, dass das Rohpapier Nassfestigkeitsharz in einer Menge von mindestens 1 kg/Tonne Papier (trocken), vorzugsweise von mindestens 2 kg/Tonne Papier (trocken), besonders bevorzugt von mindestens 4 kg/Tonne Papier (trocken) umfasst.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 11, dadurch gekennzeichnet, dass das Zellulosefasermaterial frische Zellulosefasern und/oder recycelte Zellulosefasern umfasst.
- Rohpapier nach einem der vorhergehenden Ansprüche 1 - 12, dadurch gekennzeichnet, dass das Rohpapier mit einem wärmehärtbaren Harz imprägniert ist, wobei das wärmehärtbare Harz vorzugsweise Lignin umfasst.
- Verwendung von Rohpapier nach einem der Ansprüche 1 - 13 als Polsterkissen zur Verwendung bei der Laminatimprägnierung; als Verdunstungskühlkissen; als Sperrholzfolien oder als Oberflächenfolien; oder zur Herstellung eines Mehrschichtprodukts, ausgewählt aus dekorativen Hochdrucklaminaten, Nachform-Laminaten, Kompaktlaminaten, feuerhemmenden Laminaten, kontinuierlich gepressten Laminaten, Bohrplatten, elektrotechnischen Laminaten und technischen Laminaten.
- Mehrschichtstruktur, die mindestens eine Schicht umfasst, die aus einem Rohpapier nach einem der Ansprüche 1 - 13 hergestellt ist, das mit einem wärmehärtbaren Harz imprägniert ist, das Lignin umfasst, wobei die Mehrschichtstruktur vorzugsweise mindestens 10 Gew.-%, vorzugsweise mindestens 20 Gew.-%, an wärmehärtbarem Harz umfasst, das Lignin umfasst.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL20208279.8T PL4001504T3 (pl) | 2020-11-18 | 2020-11-18 | Papier bazowy, jego zastosowanie i struktura wielowarstwowa |
ES20208279T ES2960957T3 (es) | 2020-11-18 | 2020-11-18 | Papel base, su uso y estructura multicapa |
EP20208279.8A EP4001504B1 (de) | 2020-11-18 | 2020-11-18 | Rohpapier, seine verwendung und mehrschichtstruktur |
RS20231148A RS64903B1 (sr) | 2020-11-18 | 2020-11-18 | Bazni papir, njegova upotreba i višeslojna struktura |
HRP20231271TT HRP20231271T1 (hr) | 2020-11-18 | 2020-11-18 | Osnovni papir, njegova uporaba i višeslojna struktura |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20208279.8A EP4001504B1 (de) | 2020-11-18 | 2020-11-18 | Rohpapier, seine verwendung und mehrschichtstruktur |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4001504A1 EP4001504A1 (de) | 2022-05-25 |
EP4001504C0 EP4001504C0 (de) | 2023-09-27 |
EP4001504B1 true EP4001504B1 (de) | 2023-09-27 |
Family
ID=73475942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20208279.8A Active EP4001504B1 (de) | 2020-11-18 | 2020-11-18 | Rohpapier, seine verwendung und mehrschichtstruktur |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4001504B1 (de) |
ES (1) | ES2960957T3 (de) |
HR (1) | HRP20231271T1 (de) |
PL (1) | PL4001504T3 (de) |
RS (1) | RS64903B1 (de) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9307507A (pt) * | 1992-11-24 | 1999-06-01 | Casco Nobel Ab | Película compósita processo para produção da mesma e painel laminado com a mesma |
EP3211135B1 (de) * | 2016-02-29 | 2018-08-29 | BillerudKorsnäs AB | Sackpapier mit hoher dehnbarkeit |
EP3385442B1 (de) * | 2017-04-06 | 2019-04-24 | BillerudKorsnäs AB | Verfahren zur herstellung eines hochdehnbaren papiers |
JP7169996B2 (ja) * | 2017-05-31 | 2022-11-11 | テトラ ラバル ホールディングス アンド ファイナンス エス エイ | ラミネートされた包装材料、それから製造される包装容器、及びラミネート材料を製造するための方法 |
-
2020
- 2020-11-18 PL PL20208279.8T patent/PL4001504T3/pl unknown
- 2020-11-18 RS RS20231148A patent/RS64903B1/sr unknown
- 2020-11-18 EP EP20208279.8A patent/EP4001504B1/de active Active
- 2020-11-18 ES ES20208279T patent/ES2960957T3/es active Active
- 2020-11-18 HR HRP20231271TT patent/HRP20231271T1/hr unknown
Also Published As
Publication number | Publication date |
---|---|
ES2960957T3 (es) | 2024-03-07 |
EP4001504C0 (de) | 2023-09-27 |
PL4001504T3 (pl) | 2024-03-11 |
EP4001504A1 (de) | 2022-05-25 |
HRP20231271T1 (hr) | 2024-02-02 |
RS64903B1 (sr) | 2023-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3350372B1 (de) | Flexibles mikrofibrilliertes film formation | |
FI124235B (en) | Fiber-based paper or cardboard web and method of manufacturing the same | |
SE545349C2 (en) | Method for manufacturing of a multilayer film com prising microfibrillated cellulose in a paper-making machine | |
CN115413288B (zh) | 包含高度精制的纤维素纤维的多层膜 | |
WO2020003129A1 (en) | A ply of a linerboard and a light weight linerboard for corrugated board | |
US20200407918A1 (en) | Method for production of a product comprising a first ply | |
WO2021209916A1 (en) | Multilayer film comprising highly refined cellulose fibers | |
US20240003092A1 (en) | A method for producing a multilayer machine glazed paper comprising highly refined cellulose fibers and a multilayer machine glazed paper produced | |
EP4001504B1 (de) | Rohpapier, seine verwendung und mehrschichtstruktur | |
JP2023521826A (ja) | 高度に精製されたセルロース繊維を含む多層フィルム | |
US20240229361A9 (en) | A method, a paperboard product and use of a foam coater and a subsequent high-consistency metering size press | |
EP4261346A1 (de) | Herstellung von papier- oder deckenpapier | |
CA3229482A1 (en) | A method for producing a film comprising microfibrillated cellulose, and a film comprising microfibrillated cellulose |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20221007 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MM KOTKAMILLS ABSORBEX OY |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20230421 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602020018215 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
U01 | Request for unitary effect filed |
Effective date: 20231012 |
|
U07 | Unitary effect registered |
Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI Effective date: 20231020 |
|
REG | Reference to a national code |
Ref country code: NO Ref legal event code: T2 Effective date: 20230927 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: EP Ref document number: 20230402076 Country of ref document: GR Effective date: 20231211 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GR Payment date: 20231120 Year of fee payment: 4 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20231128 Year of fee payment: 4 Ref country code: RS Payment date: 20231102 Year of fee payment: 4 Ref country code: RO Payment date: 20231128 Year of fee payment: 4 Ref country code: NO Payment date: 20231218 Year of fee payment: 4 Ref country code: IE Payment date: 20231121 Year of fee payment: 4 Ref country code: HR Payment date: 20231030 Year of fee payment: 4 Ref country code: CZ Payment date: 20231027 Year of fee payment: 4 |
|
REG | Reference to a national code |
Ref country code: HR Ref legal event code: T1PR Ref document number: P20231271 Country of ref document: HR Ref country code: HR Ref legal event code: ODRP Ref document number: P20231271 Country of ref document: HR Payment date: 20231030 Year of fee payment: 4 |
|
U20 | Renewal fee paid [unitary effect] |
Year of fee payment: 4 Effective date: 20231229 |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: T3 Ref document number: E 42791 Country of ref document: SK |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2960957 Country of ref document: ES Kind code of ref document: T3 Effective date: 20240307 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240127 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20240228 Year of fee payment: 4 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230927 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20240127 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20240220 Year of fee payment: 4 Ref country code: SK Payment date: 20231102 Year of fee payment: 4 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20231031 Year of fee payment: 4 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20230927 |