EP0788866A3 - Method for the fabrication of particle boards and fibreboards with low formaldehyde content using tannin based binders - Google Patents

Method for the fabrication of particle boards and fibreboards with low formaldehyde content using tannin based binders Download PDF

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Publication number
EP0788866A3
EP0788866A3 EP97101931A EP97101931A EP0788866A3 EP 0788866 A3 EP0788866 A3 EP 0788866A3 EP 97101931 A EP97101931 A EP 97101931A EP 97101931 A EP97101931 A EP 97101931A EP 0788866 A3 EP0788866 A3 EP 0788866A3
Authority
EP
European Patent Office
Prior art keywords
tannin
fibreboards
fabrication
formaldehyde content
based binders
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
EP97101931A
Other languages
German (de)
French (fr)
Other versions
EP0788866B1 (en
EP0788866A2 (en
Inventor
Eberhard Von Bistram
Josef Beer
Heinz Schmidt
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.)
Schlingmann GmbH and Co
Original Assignee
Schlingmann GmbH and Co
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=7784991&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0788866(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schlingmann GmbH and Co filed Critical Schlingmann GmbH and Co
Publication of EP0788866A2 publication Critical patent/EP0788866A2/en
Publication of EP0788866A3 publication Critical patent/EP0788866A3/en
Application granted granted Critical
Publication of EP0788866B1 publication Critical patent/EP0788866B1/en
Anticipated expiration legal-status Critical
Revoked 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Compounds Of Unknown Constitution (AREA)

Abstract

Low-formaldehyde wood fibre or chip boards bonded with tannin formaldehyde resin are manufactured by a method in which the tannin is applied to the fibre or chips partly as powder and partly as liquid. The boards so manufactured are then treated with formaldehyde-active substances. Preferably the proportion of binder added as powder is at least 10 wt.% and is 40 wt.% maximum. Liquid binder preferably has a controlled pH, which may be 4, 8 or 10. The binder preferably contains at least 0.5% urea with respect to the tannin.
EP97101931A 1996-02-09 1997-02-06 Method for the fabrication of particle boards and fibreboards with low formaldehyde content using tannin based binders Revoked EP0788866B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19604799 1996-02-09
DE19604799 1996-02-09

Publications (3)

Publication Number Publication Date
EP0788866A2 EP0788866A2 (en) 1997-08-13
EP0788866A3 true EP0788866A3 (en) 1998-01-07
EP0788866B1 EP0788866B1 (en) 1998-05-20

Family

ID=7784991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101931A Revoked EP0788866B1 (en) 1996-02-09 1997-02-06 Method for the fabrication of particle boards and fibreboards with low formaldehyde content using tannin based binders

Country Status (3)

Country Link
EP (1) EP0788866B1 (en)
AT (1) ATE166279T1 (en)
DE (2) DE19704525A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812523A1 (en) * 1998-03-21 1999-11-18 Schenck Panel Production Syste Surface structuring method for panels of derived timber products
EP1048424A3 (en) * 1999-04-23 2001-01-03 Schlingmann GmbH & Co. Composite corkplate and method for the production thereof
DE10036193A1 (en) * 2000-07-24 2002-02-14 Agrosys Gmbh & Co Kg Process for the production of molded parts from fiber material obtained from renewable raw materials
DE10036034C2 (en) * 2000-07-24 2003-12-18 Ihd Inst Fuer Holztechnologie Three or multi-layer composite panel
DE10121651B4 (en) * 2001-05-03 2009-04-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Process for reducing the release of formaldehyde
ATE321636T1 (en) * 2001-06-12 2006-04-15 Edmone Roffael METHOD FOR PRODUCING MOISTURE-RESISTANT CHIPBOARD AND MEDIUM-DENSITY FIBERBOARD (MDF)
DE102009023643B4 (en) 2009-05-28 2016-08-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wood-based product and process for its preparation
CN105862520A (en) * 2016-04-07 2016-08-17 苏州市鼎立包装有限公司 Moisture-proof fiberboard and production method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2317884A1 (en) * 1973-04-10 1974-10-24 E Schnitzler Gmbh & Co Dr Wood board mfr using formaldehyde - releasing glues - FORMALDEHYDE ESCAPE BEING PREVENTED BY CHEMICALLY BONDING IN BOARD COMPSN.
US4045386A (en) * 1975-05-02 1977-08-30 Champion International Corporation Alkali-treated bark extended tannin-aldehyde resinous adhesives
FR2572010A1 (en) * 1984-10-23 1986-04-25 Desowag Bayer Holzschutz Gmbh PROCESS FOR MANUFACTURING PARTICLE OR FIBER PANELS AND CONCENTRATE AS ADDITIVE TO BINDERS FOR MANUFACTURING SUCH PANELS
DE4022348A1 (en) * 1990-07-13 1992-01-16 Fraunhofer Ges Forschung Wood prods. mfr. esp. chipboard, with improved strength - by addn. of anthraquinone or anthraquinone mono:sulphonate before, during or after gluing with alkaline phenol] formaldehyde] resin
EP0536795A1 (en) * 1991-10-09 1993-04-14 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method for the manufacture of wood chipboards and medium density wood fibreboards
EP0544927A1 (en) * 1990-12-14 1993-06-09 Diteco Ltda. An adhesive composition comprising isocyanate, phenol-formaldehyde and tannin, useful for manufacturing plywoods for exterior application
EP0699510A2 (en) * 1994-09-02 1996-03-06 Schlingmann GmbH & Co. Method for reducing the formaldehyde emission from lignocellulosic products

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1055806B (en) * 1957-10-19 1959-04-23 Basf Ag Process for the production of panels from coarse fibrous materials
DE1188750B (en) * 1964-07-28 1965-03-11 Fahlberg List G M B H Formaldehyde-binding paint for chipboard based on aqueous plastic dispersions
DE1653167A1 (en) * 1967-11-24 1971-09-16 Basf Ag Process for the production of chipboard with reduced subsequent release of formaldehyde
US4075394A (en) * 1976-04-08 1978-02-21 The Dow Chemical Company Process of inhibiting tannin migration in tannin-containing wood substrates
DE2829021C2 (en) * 1978-07-01 1980-08-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen Process for reducing the formaldehyde release from chipboard
DE2851589C3 (en) * 1978-11-29 1983-06-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Multi-layer chipboard or fiberboard that contains an aminoplast as a binding agent in a sub-area or sub-areas
FI70686C (en) * 1979-10-11 1986-10-06 Swedspan Ab SAINT ATT MINSKA EMISSIONEN AV FORMALDEHYD FRAON KARBAMIDHARTSBUNDNA SPAONSKIVOR
DE3123999C2 (en) * 1981-06-19 1985-04-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Method of reducing the viscosity of tannin solution
DE3443002A1 (en) * 1984-11-26 1986-05-28 Kataflox Patent-Verwaltungsgesellschaft mbH, 7500 Karlsruhe Material for reducing the elimination of formaldehyde
ES2039017T5 (en) * 1988-10-28 2005-04-01 Kronospan Technical Company Ltd. A PROCEDURE FOR MANUFACTURING ARTICLES OF FIBER OR WOOD MATERIAL.
JPH07121523B2 (en) * 1992-01-31 1995-12-25 株式会社ノダ Fiberboard manufacturing method
DE4402159A1 (en) * 1993-08-21 1995-02-23 Ruetgerswerke Ag Thermosetting binders
DE4334422C2 (en) * 1993-10-08 1996-07-11 Fraunhofer Ges Forschung Lye from chemical-thermal digestion of chipboard and fiberboard that has already been processed, binder, processes for their production and their use as extenders for wood-based binders
DE4428119A1 (en) * 1994-08-09 1996-02-15 Roffael Edmone Prof Dr Ing Process for the production of chipboard and fiberboard

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2317884A1 (en) * 1973-04-10 1974-10-24 E Schnitzler Gmbh & Co Dr Wood board mfr using formaldehyde - releasing glues - FORMALDEHYDE ESCAPE BEING PREVENTED BY CHEMICALLY BONDING IN BOARD COMPSN.
US4045386A (en) * 1975-05-02 1977-08-30 Champion International Corporation Alkali-treated bark extended tannin-aldehyde resinous adhesives
FR2572010A1 (en) * 1984-10-23 1986-04-25 Desowag Bayer Holzschutz Gmbh PROCESS FOR MANUFACTURING PARTICLE OR FIBER PANELS AND CONCENTRATE AS ADDITIVE TO BINDERS FOR MANUFACTURING SUCH PANELS
DE4022348A1 (en) * 1990-07-13 1992-01-16 Fraunhofer Ges Forschung Wood prods. mfr. esp. chipboard, with improved strength - by addn. of anthraquinone or anthraquinone mono:sulphonate before, during or after gluing with alkaline phenol] formaldehyde] resin
EP0544927A1 (en) * 1990-12-14 1993-06-09 Diteco Ltda. An adhesive composition comprising isocyanate, phenol-formaldehyde and tannin, useful for manufacturing plywoods for exterior application
EP0536795A1 (en) * 1991-10-09 1993-04-14 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Method for the manufacture of wood chipboards and medium density wood fibreboards
EP0699510A2 (en) * 1994-09-02 1996-03-06 Schlingmann GmbH & Co. Method for reducing the formaldehyde emission from lignocellulosic products

Also Published As

Publication number Publication date
DE59700001D1 (en) 1998-06-25
DE19704525A1 (en) 1997-08-14
EP0788866B1 (en) 1998-05-20
EP0788866A2 (en) 1997-08-13
ATE166279T1 (en) 1998-06-15

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