WO2015086555A1 - Bande de presse et son utilisation ainsi que rouleau presseur et presse à sabot - Google Patents

Bande de presse et son utilisation ainsi que rouleau presseur et presse à sabot Download PDF

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Publication number
WO2015086555A1
WO2015086555A1 PCT/EP2014/076968 EP2014076968W WO2015086555A1 WO 2015086555 A1 WO2015086555 A1 WO 2015086555A1 EP 2014076968 W EP2014076968 W EP 2014076968W WO 2015086555 A1 WO2015086555 A1 WO 2015086555A1
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WO
WIPO (PCT)
Prior art keywords
press
mol
belt according
press belt
glycol
Prior art date
Application number
PCT/EP2014/076968
Other languages
German (de)
English (en)
Inventor
Delphine Delmas
Uwe Matuschczyk
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2015086555A1 publication Critical patent/WO2015086555A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3225—Polyamines
    • C08G18/3237—Polyamines aromatic
    • C08G18/3243—Polyamines aromatic containing two or more aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring

Definitions

  • the invention relates to a press belt and its use, a press roll and a shoe press according to the independent claims.
  • Such press belts can be used, for example, as press jackets for a press roll of a shoe press for dewatering a fibrous web or transfer belts for transporting a fibrous web, in particular a paper, board, tissue or pulp web, for a machine for producing the same.
  • a press felt by a nip, which is a press roll - also referred to as shoe press roll - and a counter-roller is formed.
  • the shoe press roll comprises a rotating press jacket and a stationary press element, the press shoe, which is supported on a supporting yoke and which is pressed by hydraulic pressing elements against the rotating press jacket.
  • the press cover is thereby pressed in the nip against the counter roll.
  • the fibrous web can also pass through the nip of the shoe press between two press felts or between a press felt and a water-impermeable transfer belt.
  • Shoe presses are characterized by the fact that the shoe can be adapted by a concave shape to the counter roll and that thus a longer pressing zone is generated.
  • the length of the nip is preferably more than 250 mm in the web running direction. That's why significantly more water is squeezed out with shoe presses than with normal roller presses.
  • the water pressed out in the nip, or at least the portion of it pressed out in the direction of the press roll, must be temporarily stored in the press felt and in the press jacket during the nip passage.
  • the press jackets are often provided with grooves or blind holes on the fibrous web facing jacket surface.
  • Press jackets may therefore comprise a single- or multi-ply polymer layer, preferably of polyurethane, in which reinforcing threads are embedded in the form of loops or woven fabrics.
  • the present invention relates to such generic press jackets, transfer belts or devices which comprise these.
  • EP 2 284 314 A1 discloses a papermaking shoe press belt which is formed from a reinforcing fiber base material and a polyurethane layer which are integrated with one another, wherein the reinforcing fiber base material is embedded in the polyurethane layer.
  • the polyurethane layer is formed by curing a composition of a urethane prepolymer (A) and an active hydrogen group (H) -containing curing agent (B), wherein the urethane prepolymer (A) comprises reacting an isocyanate compound comprising 55 to 100 mole% of a p-phenylene diisocyanate compound , which can be obtained with a long-chain polyol and contains terminal isocyanate group (s), and wherein a curing agent (B) contains 65 to 100 mol% of one or more organic polyamine compound (s) and which has active hydrogen groups (H) and is selected from 4,4'-methylenedianiline and / or a complex of 4,4'-methylenedianiline and sodium chloride; 4,4'-methylenebis (2,6-diethyl-3-chloroaniline).
  • Transfer ribbons are less subject to alternating dip loads, but due to their length and weight, they also have to meet strong reinforcement with the same requirement for reliable bonding to the polymer matrix.
  • the prepolymer is a reaction product of 1,4-phenylene diisocyanate (PPDI) and polytetramethylene ether glycol (PTMEG) and ii) the crosslinker contains the following components: (K1) 0% to 64% mol of aromatic diamine with a molar mass> 300 g / mol, preferably 20% mol to 64% mol; (K2) 0% mol to 20% mol of aromatic diamine with a molar mass ⁇ 300 g / mol; (K3) 0% mol to 15% mol linear or cycloaliphatic amine having a molar mass of ⁇ 300 g / mol; (K4) 0% to 5% mol tertiary amine; and (K5) 0% to 50% of a polyol.
  • PPDI 1,4-phenylene diisocyanate
  • PTMEG polytetramethylene ether glycol
  • the crosslinker contains the following components: (K1) 0% to 64% mol
  • the prepolymer contains 50% to 100% mol of PPDI.
  • the components according to the invention in particular K1 to K5, can, as stated in the independent claims, be selected with regard to their molar proportions such that they do not exceed 100% mol.
  • shoe press is meant a device for dewatering a fibrous web, such as a paper, board, tissue or pulp web.
  • the shoe press comprises a shoe press roll and a counter roll, which together form or define a nip (also called press nip or shoe press nip).
  • the shoe press roll further comprises a rotating press cover and a stationary pressing element, the so-called press shoe.
  • the latter is supported by a supporting, likewise standing yoke.
  • the press shoe can be pressed for example via hydraulic pressing elements to the rotating press cover.
  • the press cover is thereby pressed in the nip against the counter roll.
  • standing means that the pressing element does not rotate relative to the shoe press roll or the counter roll, but can move translationally - for example, toward and away from the counter roll - preferably in the radial direction - and thus relative to the counter roll.
  • one or more circumferentially endlessly circulating felts and / or further endlessly circulating press belts can be guided through the press nip of the shoe press.
  • a shoe press may include more than one shoe press nip.
  • a press belt is to be understood as meaning a belt or a sheath which is guided together with a fibrous web through the nip of a shoe press.
  • the press belt can be designed as a press cover of the shoe press, which is designed as a circumferentially endless, closed jacket and is held by two lateral clamping disks and rotated about the fixed press shoe to form the shoe press roll.
  • oil for lubrication can be applied to the inside of the press belt, ie the side facing the press shoe.
  • the press belt instead of the guide through the two side clamping discs, the press belt, as is the case with open shoe presses, on the press shoe and a plurality of guide rollers be guided.
  • the surface of press jackets may be provided with grooves and / or blind holes.
  • the press belt can also be embodied in the sense of the invention as a transfer belt, which is guided between the fibrous web and the mantle of a mating roll as a circumferentially endless belt in order to transport the fibrous web through the shoe press nip.
  • the fibrous web is then removed after the shoe press nip using a suction roll from the press belt, taken on another fabric and fed to the following machine group.
  • the surface of the transfer belt has sufficient adhesion to the fibrous web to guide it safely and if the surface of the transfer belt has good smoothness and low tendency to marring.
  • the fibrous web can be pulled off again.
  • transfer belts according to the invention are not limited to use in shoe presses, but can also be found outside this application.
  • Transfer belts for conveying a fibrous web, white a paper, cardboard, tissue or pulp web can then be designed so that they preferably wrap around several rollers in operation.
  • a fibrous web is to be understood as a scrim of fibers, such as wood fibers, synthetic fibers, glass fibers, carbon fibers, additives, additives or the like.
  • the fibrous web may be formed, for example, as a paper, board or tissue web, which essentially comprise wood fibers, wherein small amounts of other fibers or additives and additives may be present.
  • reinforcement in the sense of the invention means reinforcement of at least one layer containing or consisting of polyurethane.
  • the reinforcement is embedded in the polyurethane.
  • the polyurethane takes over the role of the polymer matrix surrounding the reinforcement and due to adhesion or cohesion forces on the Polymer matrix binds. As reinforcement come familiar to the expert materials.
  • the polyurethanes thus produced are characterized by a sufficiently slow reaction rate, good mechanical and dynamic properties and improved thermal stability.
  • the component (K1) of the crosslinker MCDEA may preferably be with a molar mass of about 380 g / mol.
  • the component (K2) of the crosslinker can be DETDA with a molar mass of 178 g / mol.
  • component (K3) of the crosslinker may be 4,4'-methylenebis (cyclohexylamine) (CAS 1761-71 -3) having a molar mass of about 210 g / mol.
  • component (K4) of the crosslinker may be triethylenediamine (TEDA).
  • component (K5) of the crosslinker may be selected from polytetramethylene ether glycol (PTMEG) or polycarbonates or polyols.
  • the molar ratio between prepolymer and crosslinker may be between 0.9 and 1.1.
  • the polyols may be selected from: polyester polyol, in particular polycaprolactone polyol; Polyether polyols, in particular
  • Polytetramethylene ether glycol PTMEG
  • polypropylene glycol PPG
  • polyethylene glycol PEG
  • polyhexamethylene ether glycol polycarbonate
  • Polyethercarbonate polyol polybutadiene polyol, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, polybutylene glycol, 1,4-butanediol, 1,3-propanediol, 1,5-pentanediol, 1,6-hexanediol, 4,4'-dihydroxyphenylacetylene (DHPA), 1,4-dihydroxyethylphenyl diether (HQEE), trimethylol propane (TMP).
  • DHPA 1,4-dihydroxyphenylacetylene
  • HQEE 1,4-dihydroxyethylphenyl diether
  • TMP trimethylol propane
  • the molar mass of the polyols can be between 900 and 3000 g / mol.
  • the amine may be selected from hydrazines, ethylenediamines, diethylenetoluenediamine (DETDA), diethylmethylbenzenediamines (DETDA), methylene-bis-orthochloroaniline (MOCA), dimethylthiotoluenediamine (DMTDA), trimethyleneglycol di (p-aminobenzoate) (TMAB), 4 , 4'-Methylenebis (2,6-diethylaniline) (MCDEA), 2,2'-methyliminodiethanol (MDEA), triisopropanolamine (TIPA).
  • hydrazines ethylenediamines
  • DETDA diethylenetoluenediamine
  • DETDA diethylmethylbenzenediamines
  • MOCA methylene-bis-orthochloroaniline
  • DMTDA dimethylthiotoluenediamine
  • TMAB trimethyleneglycol di (p-aminobenzoate)
  • MCDEA 4 , 4
  • the press cover or the transfer belt may be constructed of multiple layers, wherein at least the outermost layer comprises a prepolymer mixture according to claim 1.
  • the prepolymer mixture according to claim 1 may be provided at least in regions, preferably in the edge regions of the outermost layer.
  • press belts that is, press jackets for shoe press rolls and transfer belts
  • reinforcing may be embedded in the polyurethane matrix in the form of yarns.
  • This can be a scrim or a fabric.
  • Such a press cover may usually be made by casting the polyurethane.
  • the reinforcement is wound onto a casting core and subsequently the polyurethane is applied from nozzles displaceable in the longitudinal direction of the casting core, while the casting core rotates under its nozzle about its longitudinal axis.
  • the polyurethane is applied in a band-like application in which the windings abut one another, at least in abutment.
  • the application can be carried out in one or more layers, whereby material variations such as filler gradients in different layers are also possible.
  • the press shell is subjected to further processing steps, for example, provided with surface structures and finally withdrawn from the casting core.
  • Transfer belts can usually be cast on large casters, where the basic structure is suspended and coated by means of a likewise movable casting device, which usually has a casting belt and an associated support structure or two casting belts, between which the liquid polyurethane is introduced.
  • a likewise movable casting device which usually has a casting belt and an associated support structure or two casting belts, between which the liquid polyurethane is introduced.
  • casting is carried out on part of the total width of the transfer belt and the casting device is moved for a spiral application.
  • the viscosity should allow a uniform application on exit from the nozzle
  • the polyurethane should not be too thin, otherwise it runs when turning the casting core and dripping.
  • the so-called pot life which provides information on the crosslinking of the polyurethane over time, should therefore be chosen so that the polyurethane is indeed firm enough during the application not dripping, but still reactive enough to be able to make a connection with the newly applied polyurethane composition at the next turn.
  • pot life which provides information on the crosslinking of the polyurethane over time, should therefore be chosen so that the polyurethane is indeed firm enough during the application not dripping, but still reactive enough to be able to make a connection with the newly applied polyurethane composition at the next turn.
  • these requirements are not absolutely necessary and depend heavily on the application of the polyurethane mixture.
  • the polyurethane composition is thin enough to completely penetrate the various layers of the reinforcement, the number of which may be, for example, up to three (or even more) and also include fabric layers, and to cover the yarns over the entire surface.
  • This may be significant in that poor circulation can interfere with the bonding of the reinforcement to the polymer matrix and lead to cracking and delamination. Trapped air bubbles in turn can lead to defects in the pressure profile, which can manifest itself in markings of the fiber web. Transfer belts and press jackets of shoe press rolls are equally subject to a variety of chemical and mechanical stresses, as already briefly mentioned above.
  • a press roll such as a shoe press roll, is provided for a shoe press for dewatering a fibrous web, wherein the press roll has at least one press belt according to the invention.
  • a shoe press for dewatering a fibrous web, preferably a paper, board, tissue or pulp web, comprising a press roll and a counter roll, which together form or define a nip, wherein the press roll comprises a rotating press cover and the press cover is formed as a press belt according to the invention.
  • a press belt according to the invention in a press, such as shoe press for dewatering a fibrous web, preferably a paper, board, tissue or pulp web is provided.
  • a polyurethane mixture is described below which takes into account the above-mentioned requirements and permits the production of a press jacket or a transfer tape which, in addition to high mechanical and chemical resistance, has excellent dynamic properties.
  • the raw materials for polyurethane are mainly isocyanates, polyols and polyamines.
  • an isocyanate prepolymer is used.
  • An isocyanate prepolymer is formed from isocyanate monomers that have been partially reacted with a high molecular weight polyol or with a mixture of high molecular weight polyols.
  • Diisocyanates are particularly important because they offer the best flexibility and dynamic resilience. However, a restriction to a diisocyanate is not mandatory, and other starting materials would be conceivable in principle, as far as they are suitable for the present invention.
  • the properties of the polyurethane depend on many factors: the isocyanate monomer type, the proportion of free monomers, the ratio XH / NCO, type, functionality and molecular weight of the polyols, type, functionality and molecular weight of the polyamines, any fillers, catalysts, etc ,
  • Particularly suitable polyols for use in press jackets are families of polyols such as polyester polyols (e.g., polycaprolactone polyol), polyether polyols (e.g., polytetramethylene ether glycol (PTMEG), polypropylene glycol (PPG), polyethylene glycol (PEG), or polyhexamethylene ether glycol), polycarbonate polyol.
  • polyester polyols e.g., polycaprolactone polyol
  • polyether polyols e.g., polytetramethylene ether glycol (PTMEG), polypropylene glycol (PPG), polyethylene glycol (PEG), or polyhexamethylene ether glycol
  • PTMEG polytetramethylene ether glycol
  • PPG polypropylene glycol
  • PEG polyethylene glycol
  • polycarbonate polyol e.g., polycarbonate polyol.
  • Polyethercarbonate polyol polybutadiene polyol. Furthermore, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, polybutylene glycol, 1, 4-butanediol, 1, 3-propanediol, 1, 5-pentanediol, 1, 6-hexanediol, 4,4'-dihydroxyphenylacetylene (DHPA), 1, 4-Dihydroxyethylphenyldiether (HQEE), trimethylolpropane (TMP) or similar Find use.
  • DHPA 1, 4-Dihydroxyethylphenyldiether
  • TMP trimethylolpropane
  • the polyamines and / or polyols used as crosslinkers may be selected from hydrazines, ethylenediamines, diethylenetoluenediamine (DETDA), diethylmethylbenzenediamines, methylene-bis-orthochloroaniline (MOCA),
  • the crosslinker may further consist partially of the polyols or contain one or more of the polyols used to make the prepolymer.
  • the most important mechanical properties of the polyurethane matrix for a press cover or a transfer belt are abrasion resistance, low tendency to crack formation and crack growth, low sensitivity to water, oil, acids, alkalis, solvents and a low tendency to swell in the abovementioned substances.
  • the positive properties of PPDI-based polyurethanes are already known.
  • PTMEG is a common polyol used in the production of "high performance" polyurethane elastomers.
  • the disadvantage of PTMEG is its low thermooxidative stability, which reduces the life of the press jacket or conveyor belt.
  • the dynamic properties of PTMEG-based polyurethanes are on the other hand tends to be good compared to other (polyether) polyols.
  • thermooxidative stability can be improved by the use of aromatic amines, in particular 4,4'-methylene-bis (3-chloro-2,6-diethylaniline) (MCDEA) in the crosslinker.
  • MCDEA 4,4'-methylene-bis (3-chloro-2,6-diethylaniline)
  • the mechanical properties are also improved by the use of MCDEA.
  • the setting of the desired reaction rate or viscosity is carried out according to the invention by the combination of different amines in the crosslinker.
  • the reactivity of the amines depends on their structure and molar mass.
  • aliphatic amines more reactive than the aromatic amines.
  • aromatic amines in turn, those with a higher molar mass are slower in their reaction rate (with some exceptions).
  • Prepolymer 0% to 100% PPDI-PTMEG, preferably 50% to 100%.
  • Component K1 0% to 64% mol of aromatic diamine with a molar mass> 300 g / mol, in particular MCDEA with a molar mass of about 380 g / mol, preferably 20% to 64% mol
  • Component K2 0% to 20% mol of aromatic diamine with a molar mass ⁇ 300 g / mol, in particular DETDA with a molar mass of 178 g / mol
  • Component K3 0% to 15% mol linear or cycloaliphatic amine with a molar mass of ⁇ 300 g / mol, in particular 4,4'-
  • Component K5 0% to 50% of a polyol with a molar mass of 900 to 3000 g / mol, in particular PTMEG.
  • the components according to the invention in particular K1 to K5, can, as indicated, be chosen in such a way with regard to their molar proportions that they do not exceed 100% mol together.
  • Particularly preferred is a solution in which the molar ratio between prepolymer and crosslinker is between 0.9 and 1.1.
  • the press cover or the transfer belt is composed of several layers.
  • an outer layer which comes into contact with the press felt and / or the fibrous web and thus exposed to water and other chemical substances, be particularly resistant to swelling by using the abovementioned prepolymer mixtures according to the invention, while the inner layers with Other prepolymers can be constructed.
  • the abovementioned prepolymer mixtures are used only in certain areas of the press jacket or transfer tape, for example on the edge.
  • the load is particularly high, since on the one hand the edge of the press shoe mechanically on acting on the press cover and on the other hand, the paper web edges mechanically load the edge areas by oscillations.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)

Abstract

L'invention concerne une bande de presse, telle qu'une enveloppe de compression pour un rouleau presseur, en particulier pour un rouleau presseur d'une presse à sabot permettant de déshydrater une bande de matière fibreuse, ou une bande de transfert permettant de transporter une bande de matière fibreuse, en particulier une bande de papier, de carton, de papier ouaté ou de cellulose, comprenant au moins une couche contenant du polyuréthane ou constituée de ce dernier, dans laquelle une armature est encapsulée. Le polyuréthane est composé d'un prépolymère et d'un agent de réticulation, i) le prépolymère étant un mélange composé de 1,4-phénylènediisocyanate (PPDI) et de polytétraméthylènetherglycol (PTMEG) et ii) l'agent de réticulation contenant les composants suivants : (K1) 0 % mol à 64 % mol de diamine aromatique d'une masse molaire > 300 g/mol, de préférence 20 % mol à 64 % mol; (K2) 0 % mol à 20 % mol de diamine aromatique d'une masse molaire < 300 g/mol; (K3) 0 % mol à % mol d'amine linéaire ou cycloaliphatique d'une masse molaire < 300 g/mol; (K4) 0 % mol à 5 % mol d'amine tertiaire; et (K5) 0 % à 50 % d'un polyol.
PCT/EP2014/076968 2013-12-13 2014-12-09 Bande de presse et son utilisation ainsi que rouleau presseur et presse à sabot WO2015086555A1 (fr)

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Application Number Priority Date Filing Date Title
DE102013225854.2 2013-12-13
DE102013225854 2013-12-13

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017046128A1 (fr) * 2015-09-18 2017-03-23 Voith Patent Gmbh Chemise de presse et procédé de fabrication associé
DE102016201344A1 (de) * 2016-01-29 2017-08-03 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
DE102016114528A1 (de) * 2016-08-05 2018-02-08 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
WO2019007650A1 (fr) * 2017-07-06 2019-01-10 Voith Patent Gmbh Manchon de presse et son utilisation ainsi que procédé de fabrication dudit manchon de presse
CN109988282A (zh) * 2019-02-21 2019-07-09 唯万科技有限公司 耐高温聚氨酯弹性材料及其制备方法
WO2023006394A1 (fr) 2021-07-27 2023-02-02 Voith Patent Gmbh Couvercle de presse pour une presse à sabot et bande transporteuse présentant des propriétés améliorées

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169112A1 (fr) * 2007-06-25 2010-03-31 Ichikawa Co., Ltd. Bande de presse à sabot pour la fabrication de papier
WO2010066950A2 (fr) * 2008-12-12 2010-06-17 Tamfelt Pmc Oy Courroie de presse à sabot
EP2284314A1 (fr) * 2009-07-21 2011-02-16 Ichikawa Co.,Ltd. Courroie pour presse à chaussure de papetier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169112A1 (fr) * 2007-06-25 2010-03-31 Ichikawa Co., Ltd. Bande de presse à sabot pour la fabrication de papier
WO2010066950A2 (fr) * 2008-12-12 2010-06-17 Tamfelt Pmc Oy Courroie de presse à sabot
EP2284314A1 (fr) * 2009-07-21 2011-02-16 Ichikawa Co.,Ltd. Courroie pour presse à chaussure de papetier

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017046128A1 (fr) * 2015-09-18 2017-03-23 Voith Patent Gmbh Chemise de presse et procédé de fabrication associé
DE102016201344A1 (de) * 2016-01-29 2017-08-03 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
CN108603073A (zh) * 2016-01-29 2018-09-28 福伊特专利有限公司 压榨套及其制造方法
US10889936B2 (en) 2016-01-29 2021-01-12 Voith Patent Gmbh Press jacket and method for the production thereof
DE102016114528A1 (de) * 2016-08-05 2018-02-08 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen
WO2019007650A1 (fr) * 2017-07-06 2019-01-10 Voith Patent Gmbh Manchon de presse et son utilisation ainsi que procédé de fabrication dudit manchon de presse
CN110869556A (zh) * 2017-07-06 2020-03-06 福伊特专利有限公司 压套及其应用和用于制造压套的方法
CN110869556B (zh) * 2017-07-06 2022-02-08 福伊特专利有限公司 压套及其应用和用于制造压套的方法
CN109988282A (zh) * 2019-02-21 2019-07-09 唯万科技有限公司 耐高温聚氨酯弹性材料及其制备方法
WO2023006394A1 (fr) 2021-07-27 2023-02-02 Voith Patent Gmbh Couvercle de presse pour une presse à sabot et bande transporteuse présentant des propriétés améliorées

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