EP0536795A1 - Procédé de fabrication de panneaux en particules de bois et de panneaux de moyenne densité en fibres de bois - Google Patents

Procédé de fabrication de panneaux en particules de bois et de panneaux de moyenne densité en fibres de bois Download PDF

Info

Publication number
EP0536795A1
EP0536795A1 EP92117336A EP92117336A EP0536795A1 EP 0536795 A1 EP0536795 A1 EP 0536795A1 EP 92117336 A EP92117336 A EP 92117336A EP 92117336 A EP92117336 A EP 92117336A EP 0536795 A1 EP0536795 A1 EP 0536795A1
Authority
EP
European Patent Office
Prior art keywords
wood
binder
chip
fiber
manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92117336A
Other languages
German (de)
English (en)
Other versions
EP0536795B1 (fr
Inventor
Brigitte Dr.Ing. Dix
Dr. Edmone Roffael Prof.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6442348&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0536795(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP0536795A1 publication Critical patent/EP0536795A1/fr
Application granted granted Critical
Publication of EP0536795B1 publication Critical patent/EP0536795B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent

Definitions

  • the invention relates to a method for producing chipboard and medium-density fibreboard according to the preamble of the main claim.
  • binder For the production of such chipboard or wood fiber boards, dried chips or wet fibers are glued with binders.
  • the proportion of binder is 5 to 12% - based on dry fiber or chip material.
  • the binder is usually sprayed onto the chips or wood fibers.
  • the glued chips are formed into particle boards and then pressed.
  • the glued fibers are dried, formed into fiber mats and finally pressed into fiber boards under heat and pressure.
  • the pressing temperature in the fiber and chipboard production is usually between 150 and 230 o C.
  • the pressing times depend on the thickness of the plates produced and are around 7 to 15 sec / mm, depending on the pressing temperature.
  • the binder introduced changes into the water-insoluble state by hardening.
  • Aminoplasts such as UF resins or phenoplasts such as PF resins and tannins are preferably used as binders, and adhesives based on PMDI.
  • the pressed sheets must be sanded to remove the press skin and to produce a coatable or paintable surface after the pressing process. During the sanding process, about 1 mm is removed from each side of the board for medium-density fiberboard, a little less for chipboard. This leads to losses in the fiber material and to a high total consumption of binder in the manufacturing process.
  • the binder-containing grinding dust is then burned, which releases the pollutants emitted from the binder and hardening accelerators. This is a disadvantage.
  • the object of the present invention is to provide a process for the production of chipboard and medium-density fiberboard, in which the proportion of thermosetting binders in the outer layers of the fiberboard and chipboard is reduced without the handling of the chipboard and fiber mat during transport until pressing to affect.
  • this is provided on both sides or only on one broad side with a layer of chips or fibers which contain a non-thermosetting binder.
  • This can be carried out by first sprinkling a nonwoven layer containing a non-thermally hardenable binder into the mold, along with further layers of chips or fibers containing thermally hardenable binders and then as the last layer again the fibers or chips with a non-thermosetting layer Binder are added.
  • Thermally non-curing binders give the chips or fibers good cold tack, but are not themselves crosslinkable.
  • the thickness of the layer containing a non-thermosetting binder is advantageously 0.5-1 mm.
  • technical non-thermosetting binders can preferably be used Lignins can be used.
  • sulfite and sulfate waste liquor and organosolvlignins can be used for this. Leaches of sulfite have a high cold tack.
  • the lignin sulfonates are inert so that they do not harden during the pressing process.
  • This binder can be used repeatedly; after pressing and sanding, it can be removed from the wood material by simply washing it out.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Stringed Musical Instruments (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP92117336A 1991-10-09 1992-10-09 Procédé de fabrication de panneaux en particules de bois et de panneaux de moyenne densité en fibres de bois Expired - Lifetime EP0536795B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4133445A DE4133445C2 (de) 1991-10-09 1991-10-09 Verfahren zur Herstellung von Holzspanplatten und mitteldichten Holzfaserplatten
DE4133445 1991-10-09

Publications (2)

Publication Number Publication Date
EP0536795A1 true EP0536795A1 (fr) 1993-04-14
EP0536795B1 EP0536795B1 (fr) 1995-01-11

Family

ID=6442348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117336A Expired - Lifetime EP0536795B1 (fr) 1991-10-09 1992-10-09 Procédé de fabrication de panneaux en particules de bois et de panneaux de moyenne densité en fibres de bois

Country Status (4)

Country Link
EP (1) EP0536795B1 (fr)
AT (1) ATE116896T1 (fr)
DE (2) DE4133445C2 (fr)
DK (1) DK0536795T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0648807A1 (fr) * 1993-10-13 1995-04-19 Bakelite AG Liant à base de tannin
EP0699510A2 (fr) * 1994-09-02 1996-03-06 Schlingmann GmbH & Co. Procédé pour baisser le relâchement de formaldehyde de produits à base de lignocellulose
EP0788866A2 (fr) * 1996-02-09 1997-08-13 Schlingmann GmbH & Co. Procédé pour la fabrication de pannau d'agglomeré et panneaux de fibres ayant un faible contenu en formaldehyde en utilisant des liants à base de tannin
WO1998035800A1 (fr) * 1997-02-14 1998-08-20 Cellutech, Llc Procede de formation de produits de particules composites ligno-cellulosiques utilisant de la lignine comme adhesif
EP2236313A1 (fr) * 2009-03-31 2010-10-06 Flooring Technologies Ltd. Procédé destiné à la fabrication de panneaux et panneaux fabriqués selon ce procédé

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10129750B4 (de) * 2001-06-20 2006-09-07 Institut für Holztechnologie Dresden gGmbH Werkstoff aus Holzpartikeln, Bindemittel und Zuschlagstoffen sowie Verfahren zu seiner Herstellung
CN114083638B (zh) * 2021-09-30 2022-07-12 千年舟新材科技集团股份有限公司 一种承重结构用竹定向刨花板的制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176354B (de) * 1962-03-16 1964-08-20 Max Himmelheber Dipl Ing Verfahren zur Verbesserung der Oberflaechen-guete von Holzspanplatten und/oder der Foerder-bedingungen von Spanplattenformlingen
DE1228798B (de) * 1965-08-12 1966-11-17 Max Himmelheber Dipl Ing Holzwerkstoffplatte, insbesondere Spanplatte
US3308218A (en) * 1961-05-24 1967-03-07 Wood Conversion Co Method for producing bonded fibrous products

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193814A (en) * 1973-03-06 1980-03-18 Canadian Patents & Development Ltd. Binding lignocellulosic materials
DE2500884B2 (de) * 1975-01-10 1978-08-03 Deutsche Novopan Gmbh, 3400 Goettingen Verfahren zur Herstellung von Spanplatten aus einer Mischung von Holzspänen und Isocyanat
DE3629586A1 (de) * 1986-08-30 1988-03-10 Kunnemeyer Hornitex Verfahren zur herstellung von holzfaserplatten
SE455001B (sv) * 1986-10-03 1988-06-13 Rune Simonson Forfarande vid tillverkning av produkter innehallande trefibrer
DE3820376A1 (de) * 1988-06-15 1989-12-21 Novopan Gmbh Verfahren zur herstellung von mehrschichtigen spanplatten

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308218A (en) * 1961-05-24 1967-03-07 Wood Conversion Co Method for producing bonded fibrous products
DE1176354B (de) * 1962-03-16 1964-08-20 Max Himmelheber Dipl Ing Verfahren zur Verbesserung der Oberflaechen-guete von Holzspanplatten und/oder der Foerder-bedingungen von Spanplattenformlingen
DE1228798B (de) * 1965-08-12 1966-11-17 Max Himmelheber Dipl Ing Holzwerkstoffplatte, insbesondere Spanplatte

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532330A (en) * 1993-10-02 1996-07-02 Rutgerswerke Aktiengesellschaft Heat-curable tannin-based binding agents
EP0648807A1 (fr) * 1993-10-13 1995-04-19 Bakelite AG Liant à base de tannin
EP0699510A2 (fr) * 1994-09-02 1996-03-06 Schlingmann GmbH & Co. Procédé pour baisser le relâchement de formaldehyde de produits à base de lignocellulose
EP0699510A3 (fr) * 1994-09-02 1996-07-10 Schlingmann Gmbh & Co Procédé pour baisser le relâchement de formaldehyde de produits à base de lignocellulose
EP0788866A2 (fr) * 1996-02-09 1997-08-13 Schlingmann GmbH & Co. Procédé pour la fabrication de pannau d'agglomeré et panneaux de fibres ayant un faible contenu en formaldehyde en utilisant des liants à base de tannin
EP0788866A3 (fr) * 1996-02-09 1998-01-07 Schlingmann GmbH & Co. Procédé pour la fabrication de pannau d'agglomeré et panneaux de fibres ayant un faible contenu en formaldehyde en utilisant des liants à base de tannin
US5955023A (en) * 1996-11-27 1999-09-21 Callutech, Llc Method of forming composite particle products
WO1998035800A1 (fr) * 1997-02-14 1998-08-20 Cellutech, Llc Procede de formation de produits de particules composites ligno-cellulosiques utilisant de la lignine comme adhesif
EP2236313A1 (fr) * 2009-03-31 2010-10-06 Flooring Technologies Ltd. Procédé destiné à la fabrication de panneaux et panneaux fabriqués selon ce procédé
WO2010112125A1 (fr) * 2009-03-31 2010-10-07 Flooring Technologies Ltd. Procédé de fabrication de panneaux et panneau fabriqué selon le procédé
US8632875B2 (en) 2009-03-31 2014-01-21 Flooring Technologies Ltd. Method for producing panels and panel produced according to the method

Also Published As

Publication number Publication date
EP0536795B1 (fr) 1995-01-11
DE4133445C2 (de) 1995-04-20
DK0536795T3 (da) 1995-04-24
ATE116896T1 (de) 1995-01-15
DE4133445A1 (de) 1993-04-15
DE59201191D1 (de) 1995-02-23

Similar Documents

Publication Publication Date Title
EP1915253B2 (fr) Plaque légère multicouche en matériau dérivé du bois
DE4434876B4 (de) Verfahren und Anlage zur kontinuierlichen Herstellung einer Mehrschichtplatte
DE102006018277A1 (de) Bauplatte und Verfahren zur Herstellung einer Bauplatte
DE1299115B (de) Stranggepresste Holzspanplatte
EP0536795B1 (fr) Procédé de fabrication de panneaux en particules de bois et de panneaux de moyenne densité en fibres de bois
DE19738953C1 (de) Verfahren und Vorrichtung zur Herstellung von Formkörpern aus zerkleinertem Material
EP0258703B1 (fr) Méthode de fabrication de panneaux de fibres de bois
EP0639434B1 (fr) Procédé de fabrication de panneaux de moyenne densité en fibres de bois (MDF)
DE69730412T2 (de) Verfahren zur Herstellung von Celluloseverbundwerkstoffen
EP3587108A1 (fr) Panneau sandwich contrecollé
EP1575744B1 (fr) Materiau combine et son procede de realisation
EP1688230B1 (fr) Procédé pour la fabrication en continu de panneaux en fibres lignocellulosiques
DE3801486A1 (de) Verfahren zur herstellung einer moebelfrontplatte
DE10129750A1 (de) Werkstoff aus Holzpartikeln, Bindemittel und Zuschlagstoffen sowie Verfahren zu seiner Herstellung
EP1556456B1 (fr) Procede de production de bois colle a courtes etapes
DE10344598B3 (de) Nachformbare Holzwerkstoffplatte und Verfahren zu deren Herstellung
EP0548758B1 (fr) Panneau et procédé pour sa fabrication
EP0365708B1 (fr) Méthode de fabrication d'articles de bois ou de matériel en fibres
DE10130526A1 (de) Verfahren zur Herstellung von Holzwerkstoffplatten
EP1048424A2 (fr) Panneau sandwich en liège et son procédé de production
AT397805B (de) Verfahren zur herstellung eines kunstharz-druckformkörpers
DE1703076A1 (de) Spanplatte sowie Verfahren zu ihrer Herstellung
DE2513764A1 (de) Verfahren zur herstellung einer holzwerkstoffplatte, wie spanplatte, die mindestens einseitig mit einer beschichtung versehen ist und anlage zur ausuebung des verfahrens
DE2246591C3 (de) Verfahren zur Herstellung von Holzwerkstoffen
DE972573C (de) Verfahren zur Herstellung von Schleifkoerpern

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE DK FR GB IT SE

17P Request for examination filed

Effective date: 19930319

17Q First examination report despatched

Effective date: 19940629

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PROF. DR. EDMONE ROFFAEL

Inventor name: DIX, BRIGITTE, DR.ING.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE DK FR GB IT SE

REF Corresponds to:

Ref document number: 116896

Country of ref document: AT

Date of ref document: 19950115

Kind code of ref document: T

EAL Se: european patent in force in sweden

Ref document number: 92117336.5

REF Corresponds to:

Ref document number: 59201191

Country of ref document: DE

Date of ref document: 19950223

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950220

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KUNZ GMBH & CO.

Effective date: 19951010

PLAV Examination of admissibility of opposition

Free format text: ORIGINAL CODE: EPIDOS OPEX

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBL Opposition procedure terminated

Free format text: ORIGINAL CODE: EPIDOS OPPC

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19981130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000925

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20001020

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20001023

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20001025

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20001027

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20001221

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011009

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011009

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011010

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20011009

EUG Se: european patent has lapsed

Ref document number: 92117336.5

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020702

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051009