WO1999012711A1 - Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material - Google Patents
Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material Download PDFInfo
- Publication number
- WO1999012711A1 WO1999012711A1 PCT/EP1998/005562 EP9805562W WO9912711A1 WO 1999012711 A1 WO1999012711 A1 WO 1999012711A1 EP 9805562 W EP9805562 W EP 9805562W WO 9912711 A1 WO9912711 A1 WO 9912711A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- binder
- electron beam
- plate
- pressure
- curing
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
Definitions
- the invention relates to a process for the production of moldings from comminuted, in particular cellulosic material, in particular for the production of chipboard, fiberboard or OSB (oriented beach board), in which the processed material is mixed with a hardenable binder, the mixture on a mold base is applied and compressed by compression to a shaped body and the binder is cured.
- OSB oriented beach board
- Such a method is generally known and is widely used for the production of chipboard or fiberboard.
- thermally curable binders such as urea-formaldehyde resin, melamine-formaldehyde resin, isocyanates, phenol-formaldehyde resin, etc. used.
- curing corresponds to a thermally accelerated polymerization or polycondensation reaction.
- the dried and glue-bonded chips are fed to large-format stack presses or cycle presses (discontinuous production), or the continuous process (continuous production) is used, e.g.
- the Conti-RoU method where an endless belt of chips passes a pressing section between progressively approaching conveyor belt runs and / or a roller gap, which causes the compression.
- press factor which relates the time required for the panel hardening to the dimension perpendicular to the panel surface.
- Usual press factors are in the range between 3 and 6 s / mm for co-roll systems and between 5 and 9 s / mm for cycle systems. For example, it takes 95 seconds to cure a 19 mm plate with a press factor of 5 s / mm.
- the steam boost effect which is advantageous for accelerating curing, has the further disadvantage that the product moisture on the plate surface is almost zero and rises significantly towards the center, which means an inhomogeneous moisture profile. From the point of view of a stable product, however, a homogeneous moisture profile should be aimed for, which in practice only occurs after storage for several weeks. The processing and especially the lamination of boards with a clearly inhomogeneous moisture profile leads to quality problems. In addition, ever-increasing plant outputs have led to lower product moisture, which is now below the moisture that the product assumes in everyday use (compensation moisture). The product therefore endeavors to absorb moisture from the environment.
- a mixture is formed as a radiation-curable binder unsaturated oligomers (at least 30% by weight), acrylonitrile (1 -30% by weight), non-polymerizing additives (maximum 30% by weight) and the remainder to 100% by weight of vinylically unsaturated monomers.
- Polyester resins, acrylic resins, diallyl phthalate prepolymers, an acrylic-modified alkyd, epoxy or urethane resin are proposed as unsaturated monomers.
- Polymerization accelerators are also used.
- the invention has for its object to carry out the manufacturing process so that an increased production output is possible without having to accept an annoying moisture content and an inhomogeneous moisture distribution.
- the process described at the outset is used, which is characterized in accordance with the invention in that the material is mixed with a binder which cures by means of electron beam energy and that, after compression, the binder is cured by electron radiation.
- a binder which cures by means of electron beam energy and that, after compression, the binder is cured by electron radiation.
- the invention is based on the fact that the activation and curing of the binder used - in contrast to the thermally curing binders - is carried out by high-energy radiation from an electron beam accelerator. Its performance is essentially determined by two characteristic values: the acceleration voltage in MeV, which is responsible for the range of the energy in the body to be irradiated, and the amount of energy emitted by the radiator to the irradiated body (radiator power, dose amount), which is the product of accelerator voltage and accelerator current is.
- the emitter power determines the amount of energy introduced into and absorbed by the body, which is responsible for the hardening of the binder.
- Available accelerator systems with an acceleration voltage of 10 MeV enable a penetration depth of approx. 40 mm when irradiating one side of a plate material, which has, for example, a specific weight of 750 kg / m, with 10 MeV of approx. 105 mm for double-sided irradiation.
- the inventive method Compared to the previously usual manufacturing process for chipboard or Fase ⁇ latten, the inventive method has significant advantages.
- the curing takes place within a few tenths of a second.
- pressing factors of 0.05 s / mm are possible, so that the above-mentioned 19 mm plate has a curing time of about 1 second, whereas it was 95 seconds in conventional heat curing.
- the water is advantageous on the one hand for transporting heat into the center of the plate, but is disadvantageous when the pressing pressure is reduced because of the risk of bursting, it hardly influences the process according to the invention.
- There is no risk of moisture shifting because there is no one-sided thermal load on the product, which is the cause of the moisture migration in the product towards the cold plate center.
- In the product itself there is no critical temperature increase due to the absorption of the incident radiation or through the polymerization, which would enable a significant water vapor pressure to be built up. There is therefore no risk of disk space. Maturation times of several days, as is the case with conventional production, are therefore not necessary, which is advantageous in terms of storage space requirements and tied-up capital.
- Unsaturated oligomers are suitable as binders for electron beam curing. It may be advantageous to add these monomers in order to influence the type and degree of polymerisation of the binder. Accordingly, these monomers are also referred to as crosslinkers. Crosslinkers have mono- (eg HDDA), di- (DPGDA), tri- (eg TMPTA) or polyfunctional groups.
- the choice of the crosslinking agent in coordination with the unsaturated oligomer with regard to the mixing ratio and with regard to a combination of different crosslinking agents influences the properties of the molded article or plate produced, for example bending strength, transverse tensile strength, bending modulus of elasticity, resistance to the effects of humidity and water).
- a radiation dose between 70 and 100 kGy is required for complete curing.
- Usable unsaturated oligomers are e.g. Polyester resins, acrylic resins, diallyl phthalate prepolymers, acrylic modified alkyd, epoxy or urethane resins. In contrast to the commonly used condensation resins, these are free of formaldehyde (test in accordance with DIN EN 120 with photometric evaluation) and enable the composite to be boiled-water resistant in the sense of EN 1087 Part 1.
- a possibility which is advantageous for the same reasons consists in working with an increased pressing pressure and a corresponding over-compression, so that the uncured molded body or the plate springs back to the desired target thickness after passing through the pressing device. Then irradiation with electron energy, which is completely unobstructed not only by the pressing device but also by a holding device, can be carried out in order to effect the curing.
- irradiation with electron energy which is completely unobstructed not only by the pressing device but also by a holding device, can be carried out in order to effect the curing.
- this requires the use of a binder with a proportion of binder that is thermally curable.
- an admixture of the thermally curable binder that is usually used can be considered.
- thermal partial hardening or first hardening is also the addition of an organic peroxide (e.g. TBPEH), which is introduced together with the binder and initiates the crosslinking of the binder under the influence of temperature.
- organic peroxide e.g. TBPEH
- the initial thermal hardening only serves to fix the material in the compressed layer and can be carried out at a comparatively low temperature, so that the aforementioned technological disadvantages of thermal hardening are kept within limits.
- top layers hardened in this way can have a thickness of 1 mm to several mm.
- the binder in these top layers can consist of a non-electron-curable binder, a mixture of a thermally curable binder and an electron-curable binder or a mixture of an electron-curable binder with an organic peroxide.
- the binder for the portion of the product other than the top layers is an electron-curable binder or a mixture of a thermally curable and an electron-curable portion.
- the thermal hardening of the cover layers does not have to lead to complete crosslinking of the binder, in particular if the binder used has a proportion curable in the electron beam. Rather, it is even desirable to keep the duration of the temperature exposure to the cover layers as short as possible in order to keep the adverse panel properties to be expected as low as possible due to the temperature impact.
- the thermal partial curing is followed by a final curing of the product by the action of electron beam energy, which, depending on the requirements of the product properties, can be carried out either under the influence of a holding pressure already reduced compared to the first stage with thermal curing or without pressure.
- the already partially hardened top layers simplify the application of a holding pressure in such a way that a form-stabilizing tape or a device with similar function and effect in the area of electron beam exposure can be completely dispensed with or these can be dimensioned significantly weaker and thus no or a significantly reduced absorption the electron beam energy takes place in the band or in the devices, which enables an improved use of the electron beam energy in the product.
- the effect of temperature favors the surface properties of the product (coatability, achievable density and density distribution).
- the method according to the invention is particularly suitable for the production of chipboard, fiberboard or OSB. However, it is also applicable to other cellulosic or similar material in particle or piece form, in which a mutual connection is achieved by a binder. Examples are the production of plywood boards, plate-shaped products made of paper or paper chips, textile fibers, bark or certain waste fractions such as plastic waste or composite materials made of plastic and paper or cardboard.
- the invention also relates to a device for in particular continuous production of plate-shaped bodies, in particular chipboard and bevel boards, with a spreading device, a conveyor belt and a pressing device, as are generally used for the production of chipboard and bevel boards.
- this device is characterized in that the pressing device is followed by an electron beam device in the transport direction.
- the method according to the invention can be carried out so that the above-mentioned advantages also apply to the device according to the invention.
- Examples 1 to 5 relate to tests for the detection of the improved mechanical-technological properties of chip bodies hardened according to the invention with electron beam energy: example 1
- the two panels gave comparable results in terms of transverse tensile strength.
- the samples of the following Examples 3 to 5 are round samples with a diameter of approx. 1 10 mm, they were cured in an electron beam accelerator system with an accelerator voltage of 10 MeV and a current of approx. 1.5 mA corresponding to an average emitter output of 15 kW.
- Comparative test specimens were produced in an analogous manner with urea-formaldehyde binder (UF) (100 parts of chips, 10 parts of solid resin, ammonium sulfate as a hardness component in accordance with sample series J). The mechanical-technological properties were compared:
- the binder was applied in the form of a 25% emulsion (for the purpose of improved distribution) of a melamine acrylate in the cold state.
- the water introduced by the emulsion significantly increased the moisture in the chips when glued.
- panels with such chip moisture can only be produced at an extremely low pressing temperature and the associated long pressing time.
- the transverse tensile strength for R is comparable to UF-bound test specimens and lies in the range of the samples from Example 4. What is striking for the R series is the low 2-hour swelling.
- Figure 1 shows a device for the continuous production of chipboard or fiberboard using a Vo ⁇ resse and with double-sided electron radiation
- Figure 2 shows a device as in Figure 1, but in which the main press is designed differently;
- Figure 3 shows a device corresponding to Figure 1 but without a press
- Figure 4 is a device corresponding to Figure 3 with one-sided electron radiation
- Figure 5 is a device corresponding to Figure 1, but in which a holding pressure is applied to the compacted plate in the area of electron radiation;
- FIG. 6 shows a device with a press, which is formed by a deflection drum of large diameter, pressure rollers cooperating with it and a pressure belt, a single-acting electron beam device being provided;
- Figure 7 is a device largely corresponding to Figure 2, which is used for combined thermal and electron beam curing, the latter being carried out in a separate unit downstream of the pressing device.
- a container-shaped scattering device 1 which receives cellulosic material 2 (wood chips, wood fibers) glued with a binder that is hardened by electron radiation. This material 2 is distributed evenly on a continuous The surrounding belt 3 is poured onto which a loose scattering layer 4 is formed. This is pre-compressed in a press 5.
- cellulosic material 2 wood chips, wood fibers
- the Vo ⁇ resse 5 has a mirror-symmetrical design and arrangement of an upper pre-compression belt 6 and a lower pre-compression belt 7, which run over deflection rollers 8, tensioning rollers 9 and top-side pre-pressure rollers 10 and bottom-side pre-compression rollers 1 1.
- the conveyor belt 3 with the scattering layer 4 runs between the precompression belts 6 and 7, which approach each other in the transport direction, which is achieved by the distance between the opposing pre-pressure rollers 10 and 11, which decreases in the transport direction. In this way, a thinner pre-compressed layer 12 is created from the scattering layer 4.
- the conveyor belt 3 runs over deflection rollers 13 and a rigid table 14 in the area of feeding the material 2 and over support rollers 15 behind the feed 5.
- a pressing device 16 main press
- the press nip 19 of which is run through from the upper run of the conveyor belt 3 with the pre-compressed layer 12, so that from this creates the compressed layer 20, which runs over the support rollers 21 with the conveyor belt 3, the compressed layer 20 being given a somewhat greater thickness as a result of springback than corresponds to the dimension of the press nip 19.
- the conveyor belt 3 with the compressed layer 20 then passes through an electron beam device 22 which comprises an upper electron beam accelerator 23 and a lower electron beam accelerator 24 which face one another.
- an electron beam device 22 which comprises an upper electron beam accelerator 23 and a lower electron beam accelerator 24 which face one another.
- a hardened plate 25 is produced on the electron beam device 22 from the compressed layer 20, which plate is fed to the finishing stage (cross cutting, surface grinding) via support rollers 26.
- the device according to Figure 2 largely corresponds to the device described above. In this respect - as in the following figures - the same reference numerals are used and no further description is given.
- the difference from Figure 1 is that instead of the pressing device 16, a differently designed pressing device 27 is provided.
- This pressing device 27 is designed to work according to the conti-roll process, but can be made significantly shorter than is usually the case with processes with thermal hardening.
- the pressing device 27 comprises an upper belt 28 and a lower belt 29, which rotate over deflection rollers 30.
- Within the upper band 28 is an endless sequence of upper ones Rolling rods 31 are provided, and in a corresponding manner an endless row of lower rolling rods 32 is provided within the lower band 29, the rolling rods each rotating over deflecting rollers 33.
- the upper roller bars 31 are assigned an upper pressure plate 34 with upper pressure cylinders 35, while the lower roller bars 32 are assigned a lower pressure plate 36 with lower pressure cylinders 37.
- the pressure plates 34 and 36 are inclined slightly converging in the direction of transport, so that there is a tapering press nip 38 which is traversed by the conveyor belt 3 with the pre-compressed layer 12. Appropriate pressurization of the pressure cylinders 35 and 37 allows the pressing pressure of the pressing device 27 to take effect and thus the compression process to be adapted to the respective conditions and specifications.
- the device according to FIG. 3 lacks the press 5. Accordingly, the scattering layer 4 is fed directly to the pressing device 16 and converted into the compressed layer 20.
- the device according to Figure 4 differs from that according to Figure 3 only in that a simplified electron beam device 39 is provided, which has only one electron beam accelerator 23, which irradiates the compressed layer 20 only from the top. Of course, it would also be possible to provide radiation only from the underside.
- the device in accordance with FIG. 5 is a further development of the device in accordance with FIG. 1, wherein in the area of the electron beam device 22 there is provided a shark printing device 40 which is passed through by the transport belt 3 with the compressed layer 20 and which has two holding transport belts, namely an encircling upper holding transport belt 41 which over Deflection rollers 42 is guided and, as shown, already passes through the pressing device 16, and a lower holding conveyor belt, which is formed here by the conveyor belt 3.
- a shark printing device 40 which is passed through by the transport belt 3 with the compressed layer 20 and which has two holding transport belts, namely an encircling upper holding transport belt 41 which over Deflection rollers 42 is guided and, as shown, already passes through the pressing device 16, and a lower holding conveyor belt, which is formed here by the conveyor belt 3.
- a holding pressure below the pressing pressure of the pressing device 16 is applied to the compressed layer 20 in the region of the electron beam device 22.
- a vacuum device 43 is provided for forming a vacuum zone 44 through which the compressed layer 20 passes, so that the atmospheric pressure acting on the conveyor belts 3 and 41 from the outside supplies the holding pressure which ensures a thickness of the compressed layer 20 corresponding to the press nip 19 during the electron beam irradiation .
- the conveyor belt 3 and the table 14 are replaced by a short feed conveyor belt 45.
- the press belt 48 is supported in the area of the press nip 49 on the back by pressure rollers 50 which apply the compression pressure.
- the press belt 48 runs over an upper deflection pressure roller 51 and a lower deflection pressure roller 52, which are arranged adjacent to the deflection drum 47 and can be pretensioned in accordance with the arrows shown, as well as over further deflection rollers 53.
- an electron beam device 54 is arranged with an electron beam accelerator 55, which is placed between the two last pressure rollers 50 in the direction of rotation.
- an opposing electron accelerator could be arranged within the deflection drum 47 (not shown).
- the device according to Figure 7 is largely the device already described with reference to Figure 2 with a comparatively short pressing device 27 '(conti-roll method).
- the material is loaded 2 ', to which not only radiation-curable binder but also thermally curable binder is admixed, which is sufficient for a shape-stabilizing partial hardening (pre-hardening).
- pre-hardening a shape-stabilizing partial hardening
- heat is supplied via the pressure plates 34 and 36 to the pressing device 27 'and partial curing is already brought about by reaction of only the thermally curable binder.
- the result is a partially hardened endless plate 56, which, as shown, is cut to length in a conventional manner by means of a diagonal saw 57 into partially hardened individual plates 58, which are placed in an intermediate stack 59 without already being radiation-hardened.
- the radiation curing could also take place directly behind the pressing device 27 'before or after cutting to length using the diagonal saw 57 (not shown).
- This arrangement is particularly suitable for the process variant of partial thermal curing of the two cover layers and final curing of the material by means of electron beam energy.
- a holding pressure in the area of the electron beam can be applied by a device 40 shown in FIG. 5.
- thermoly curing portion is a binder such as phenol-formaldehyde resin, tannin resin, urea-formaldehyde resin, melamine-formaldehyde resin or mixtures or mixed resins thereof.
- thermoly curing portion is a binder such as isocyanate resin.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU92658/98A AU9265898A (en) | 1997-09-05 | 1998-09-02 | Method and device for manufacturing moulded bodies from crushed material |
AT98945303T ATE208252T1 (de) | 1997-09-05 | 1998-09-02 | Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material |
DE59802091T DE59802091D1 (de) | 1997-09-05 | 1998-09-02 | Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material |
DE19881279T DE19881279D2 (de) | 1997-09-05 | 1998-09-02 | Verfahren und Vorrichtung zur Herstellung von Formkörpern aus zerkleinertem Material |
JP2000510580A JP2001515802A (ja) | 1997-09-05 | 1998-09-02 | 粉砕された材料から成形体を製造する方法及びその装置 |
EP98945303A EP1011940B1 (de) | 1997-09-05 | 1998-09-02 | Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material |
CA002303300A CA2303300C (en) | 1997-09-05 | 1998-09-02 | Method and device for manufacturing moulded bodies from crushed material |
US09/486,792 US6582648B1 (en) | 1997-09-05 | 1998-09-02 | Method for manufacturing moulded bodies from crushed material and a binder hardenable by electron radiation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19738953A DE19738953C1 (de) | 1997-09-05 | 1997-09-05 | Verfahren und Vorrichtung zur Herstellung von Formkörpern aus zerkleinertem Material |
DE19738953.8 | 1997-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999012711A1 true WO1999012711A1 (de) | 1999-03-18 |
Family
ID=7841367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/005562 WO1999012711A1 (de) | 1997-09-05 | 1998-09-02 | Verfahren und vorrichtung zur herstellung von formkörpern aus zerkleinertem material |
Country Status (9)
Country | Link |
---|---|
US (1) | US6582648B1 (de) |
EP (1) | EP1011940B1 (de) |
JP (1) | JP2001515802A (de) |
AT (1) | ATE208252T1 (de) |
AU (1) | AU9265898A (de) |
CA (1) | CA2303300C (de) |
DE (3) | DE19738953C1 (de) |
ES (1) | ES2167937T3 (de) |
WO (1) | WO1999012711A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10036193A1 (de) * | 2000-07-24 | 2002-02-14 | Agrosys Gmbh & Co Kg | Verfahren zur Herstellung von Formteilen aus von nachwachsenden Rohstoffen gewonnenem Fasermaterial |
DE10344926B3 (de) * | 2003-09-25 | 2005-01-20 | Dynea Erkner Gmbh | Verfahren zur Herstellung von Holzwerkstoffkörpern, Holzwerkstoffkörper sowie nachverformbarer Holzwerkstoffkörper |
EP3081307B1 (de) * | 2005-03-24 | 2018-02-14 | Xyleco, Inc. | Verfahren zur herstellung eines verbundstoffes |
US7846295B1 (en) | 2008-04-30 | 2010-12-07 | Xyleco, Inc. | Cellulosic and lignocellulosic structural materials and methods and systems for manufacturing such materials |
US20090320697A1 (en) * | 2008-06-27 | 2009-12-31 | Mario Antonio Rago | Continuous press and method for manufacturing composite materials with progressive symmetrical pressure |
DE102009001145A1 (de) * | 2009-02-25 | 2010-09-09 | Leibniz-Institut Für Polymerforschung Dresden E.V. | Verfahren zur Aushärtung und Oberflächenfunktionalisierung von Formteilen |
CN102555018A (zh) * | 2012-01-18 | 2012-07-11 | 敦化市亚联机械制造有限公司 | 用于高速生产薄板的双钢带连续平压机 |
US9481777B2 (en) | 2012-03-30 | 2016-11-01 | The Procter & Gamble Company | Method of dewatering in a continuous high internal phase emulsion foam forming process |
CN103341899B (zh) * | 2013-06-28 | 2015-07-15 | 江苏快乐木业集团有限公司 | 定向刨花板箱板的加工方法 |
EP2876207A1 (de) * | 2013-11-25 | 2015-05-27 | CEPI aisbl | Trockenpulpe für aushärtungsgeformtes Papier |
EP3626418A1 (de) * | 2018-09-18 | 2020-03-25 | PolymerTrend LLC. | Verfahren und vorrichtungen zum herstellen von produkten unter verwendung lignocellulosehaltiger partikel |
CN109551576B (zh) * | 2018-12-13 | 2022-01-18 | 柳州市荣森新型材料科技有限公司 | 一种耐磨浸渍胶膜纸饰面生态板及其制备方法 |
IT201900019799A1 (it) * | 2019-10-25 | 2021-04-25 | Imal Srl | Procedimento ed impianto per la realizzazione di pannelli in materiale legnoso |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549509A (en) * | 1967-06-01 | 1970-12-22 | Giorgio Corp Di | Solid objects containing lignocellulose particles and radiation-induced polymer and method of making same |
US3660223A (en) * | 1968-09-16 | 1972-05-02 | Samuel L Casalina | Rigid, flexible and composite solid objects having cellulose containing rice hull particles and radiation induced polymer and method of making same |
US3676283A (en) * | 1969-08-14 | 1972-07-11 | Grace W R & Co | Laminate and process for laminating with polythiol polyene reaction product |
AT338499B (de) * | 1973-09-12 | 1977-08-25 | Oesterr Studien Atomenergie | Verfahren zur herstellung von kunststoffimpragnierten holzspanhartplatten oder holzfaserhartplatten |
WO1980000142A1 (en) * | 1978-07-06 | 1980-02-07 | A Akesson | A method of manufacturing bonded products of cellulose or cellulose derivatives |
WO1988006973A1 (en) * | 1987-03-09 | 1988-09-22 | Polycure Pty Limited | Laminated board and electron beam curable composition used in manufacture thereof |
US4844764A (en) * | 1982-09-07 | 1989-07-04 | Energy Sciences Inc. | Process of in-line coating and decorative-layer lamination with panel board material employing electron beam irradiation |
JPH073629A (ja) * | 1993-06-08 | 1995-01-06 | Toyobo Co Ltd | 低収縮性のセルロース繊維含有繊維構造物の製造方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4382847A (en) * | 1980-03-06 | 1983-05-10 | Arne Akesson | Method of manufacturing bonded products of cellulose or cellulose derivatives |
DE3937421C1 (de) * | 1989-11-10 | 1991-01-24 | Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De | |
WO1992007022A1 (en) * | 1990-10-23 | 1992-04-30 | Atomic Energy Of Canada Limited | Process for the preparation of cellulosic fibre-reinforced thermoplastic composite materials |
US5830305A (en) * | 1992-08-11 | 1998-11-03 | E. Khashoggi Industries, Llc | Methods of molding articles having an inorganically filled organic polymer matrix |
US5856022A (en) * | 1994-06-15 | 1999-01-05 | Minnesota Mining And Manufacturing Company | Energy-curable cyanate/ethylenically unsaturated compositions |
-
1997
- 1997-09-05 DE DE19738953A patent/DE19738953C1/de not_active Expired - Fee Related
-
1998
- 1998-09-02 DE DE19881279T patent/DE19881279D2/de not_active Expired - Fee Related
- 1998-09-02 AT AT98945303T patent/ATE208252T1/de not_active IP Right Cessation
- 1998-09-02 ES ES98945303T patent/ES2167937T3/es not_active Expired - Lifetime
- 1998-09-02 WO PCT/EP1998/005562 patent/WO1999012711A1/de active IP Right Grant
- 1998-09-02 JP JP2000510580A patent/JP2001515802A/ja active Pending
- 1998-09-02 CA CA002303300A patent/CA2303300C/en not_active Expired - Fee Related
- 1998-09-02 EP EP98945303A patent/EP1011940B1/de not_active Expired - Lifetime
- 1998-09-02 AU AU92658/98A patent/AU9265898A/en not_active Abandoned
- 1998-09-02 DE DE59802091T patent/DE59802091D1/de not_active Expired - Fee Related
- 1998-09-02 US US09/486,792 patent/US6582648B1/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549509A (en) * | 1967-06-01 | 1970-12-22 | Giorgio Corp Di | Solid objects containing lignocellulose particles and radiation-induced polymer and method of making same |
US3660223A (en) * | 1968-09-16 | 1972-05-02 | Samuel L Casalina | Rigid, flexible and composite solid objects having cellulose containing rice hull particles and radiation induced polymer and method of making same |
US3676283A (en) * | 1969-08-14 | 1972-07-11 | Grace W R & Co | Laminate and process for laminating with polythiol polyene reaction product |
AT338499B (de) * | 1973-09-12 | 1977-08-25 | Oesterr Studien Atomenergie | Verfahren zur herstellung von kunststoffimpragnierten holzspanhartplatten oder holzfaserhartplatten |
WO1980000142A1 (en) * | 1978-07-06 | 1980-02-07 | A Akesson | A method of manufacturing bonded products of cellulose or cellulose derivatives |
US4844764A (en) * | 1982-09-07 | 1989-07-04 | Energy Sciences Inc. | Process of in-line coating and decorative-layer lamination with panel board material employing electron beam irradiation |
WO1988006973A1 (en) * | 1987-03-09 | 1988-09-22 | Polycure Pty Limited | Laminated board and electron beam curable composition used in manufacture thereof |
JPH073629A (ja) * | 1993-06-08 | 1995-01-06 | Toyobo Co Ltd | 低収縮性のセルロース繊維含有繊維構造物の製造方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 095, no. 004 31 May 1995 (1995-05-31) * |
Also Published As
Publication number | Publication date |
---|---|
CA2303300C (en) | 2006-05-30 |
DE19881279D2 (de) | 2001-01-18 |
CA2303300A1 (en) | 1999-03-18 |
DE59802091D1 (de) | 2001-12-13 |
JP2001515802A (ja) | 2001-09-25 |
ATE208252T1 (de) | 2001-11-15 |
US6582648B1 (en) | 2003-06-24 |
EP1011940A1 (de) | 2000-06-28 |
ES2167937T3 (es) | 2002-05-16 |
DE19738953C1 (de) | 1999-03-04 |
EP1011940B1 (de) | 2001-11-07 |
AU9265898A (en) | 1999-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19718772B4 (de) | Verfahren und Anlage zur Herstellung von Holzwerkstoffplatten | |
EP0344231B1 (de) | Verfahren zum herstellen eines gegebenenfalls plattenförmigen kunstharz-druckformkörpers sowie vorprodukt zum einsatz bei einem solchen verfahren | |
DE19738953C1 (de) | Verfahren und Vorrichtung zur Herstellung von Formkörpern aus zerkleinertem Material | |
DE2026093A1 (de) | Preßholzplatten-Herstellungsverfahren | |
EP1519818B1 (de) | Mdf-presstechnologie | |
EP3272480A1 (de) | Verfahren zur herstellung einer faserplatte | |
DE3206218A1 (de) | Nicht brennbare bauplatte und verfahren zu ihrer herstellung | |
DE102006032947A1 (de) | Verfahren zur Herstellung von Werkstoffplatten und Werkstoffplatte | |
DE2832509C2 (de) | Verfahren zur Herstellung von Spanplatten | |
DE102016110076A1 (de) | Verfahren und Vorrichtung zur Herstellung von Holzwerkstoffplatten sowie Holzwerkstoffplatte | |
EP2062708B1 (de) | Verfahren zur Verminderung der Emission von gesättigten und ungesättigten Aldehyden aus Holzwerkstoffen | |
EP2439031A1 (de) | Verwendung von Popcorn für Holz- und Verbundwerkstoffe | |
EP0536795B1 (de) | Verfahren zur Herstellung von Holzspanplatten und mitteldichten Holzfaserplatten | |
EP0639608B1 (de) | Hitzehärtende Bindemittel | |
EP0018355B1 (de) | Holzspanplatte und Verfahren zu deren Herstellung | |
DE2440139A1 (de) | Verfahren zur herstellung von kunststoffimpraegnierten holzspanhartplatten oder holzfaserhartplatten | |
DE2929243A1 (de) | Holzspanplatte sowie verfahren zu ihrer herstellung | |
DE10037508B4 (de) | Verfahren und Anlage zur Herstellung von Holzwerkstoffplatten | |
DE10344598B3 (de) | Nachformbare Holzwerkstoffplatte und Verfahren zu deren Herstellung | |
EP2293908B1 (de) | Verfahren zur herstellung eines holzwerkstoff-formteiles | |
EP0365708B2 (de) | Verfahren zum Herstellen von Holzwerkstoff- oder Fasermaterial-Artikeln | |
DE1808375A1 (de) | Verfahren zum Herstellen eines Presswerkstoffes | |
DE202016102908U1 (de) | Vorrichtung zur Herstellung von Holzwerkstoffplatten sowie Holzwerkstoffplatte | |
EP3854552A1 (de) | Verfahren zum herstellen einer furnierten platte | |
WO2021190728A1 (de) | Herstellung eines lignocellulosehaltigen, kunststoffbeschichteten und bedruckbaren formteils |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref document number: 2303300 Country of ref document: CA Ref document number: 2303300 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998945303 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09486792 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1998945303 Country of ref document: EP |
|
REF | Corresponds to |
Ref document number: 19881279 Country of ref document: DE Date of ref document: 20010118 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 19881279 Country of ref document: DE |
|
WWG | Wipo information: grant in national office |
Ref document number: 1998945303 Country of ref document: EP |