ATE166279T1 - METHOD FOR PRODUCING LOW-FORMALDEHYDE TANNINE BONDED WOOD CHIPBOARD AND FIBERBOARD - Google Patents

METHOD FOR PRODUCING LOW-FORMALDEHYDE TANNINE BONDED WOOD CHIPBOARD AND FIBERBOARD

Info

Publication number
ATE166279T1
ATE166279T1 AT97101931T AT97101931T ATE166279T1 AT E166279 T1 ATE166279 T1 AT E166279T1 AT 97101931 T AT97101931 T AT 97101931T AT 97101931 T AT97101931 T AT 97101931T AT E166279 T1 ATE166279 T1 AT E166279T1
Authority
AT
Austria
Prior art keywords
formaldehyde
tannine
fiberboard
producing low
wood chipboard
Prior art date
Application number
AT97101931T
Other languages
German (de)
Inventor
Bistram Eberhard Von
Josef Beer
Heinz Schmidt
Original Assignee
Schlingmann Gmbh & 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=ATE166279(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schlingmann Gmbh & Co filed Critical Schlingmann Gmbh & Co
Application granted granted Critical
Publication of ATE166279T1 publication Critical patent/ATE166279T1/en

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.
AT97101931T 1996-02-09 1997-02-06 METHOD FOR PRODUCING LOW-FORMALDEHYDE TANNINE BONDED WOOD CHIPBOARD AND FIBERBOARD ATE166279T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE166279T1 true ATE166279T1 (en) 1998-06-15

Family

ID=7784991

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97101931T ATE166279T1 (en) 1996-02-09 1997-02-06 METHOD FOR PRODUCING LOW-FORMALDEHYDE TANNINE BONDED WOOD CHIPBOARD AND FIBERBOARD

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
EP1266730B1 (en) * 2001-06-12 2006-03-29 Edmone Roffael Method of manufacturing moisture resistant fibreboards
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

Family Cites Families (21)

* 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
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
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
DE3438735A1 (en) * 1984-10-23 1986-06-26 Desowag-Bayer Holzschutz GmbH, 4000 Düsseldorf Process for producing chipboards or fibreboards
DE3443002A1 (en) * 1984-11-26 1986-05-28 Kataflox Patent-Verwaltungsgesellschaft mbH, 7500 Karlsruhe Material for reducing the elimination of formaldehyde
DE3879494D1 (en) * 1988-10-28 1993-04-22 Kronospan Anstalt METHOD FOR PRODUCING WOOD MATERIAL OR FIBER MATERIAL ARTICLES.
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
ATE129004T1 (en) * 1990-12-14 1995-10-15 Diteco Ltda ADHESIVE COMPOSITION CONSISTING OF ISOCYANATE, PHENOL FORMALDEHYDE AND TANNIN FOR THE PRODUCTION OF PLYWOOD PANELS FOR EXTERNAL USE.
DE4133445C2 (en) * 1991-10-09 1995-04-20 Fraunhofer Ges Forschung Process for the production of chipboard and medium density fibreboard
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
DE4431316C1 (en) * 1994-09-02 1996-05-02 Schlingmann Gmbh & Co Process for reducing the release of formaldehyde from chipboard or fiberboard

Also Published As

Publication number Publication date
EP0788866B1 (en) 1998-05-20
EP0788866A2 (en) 1997-08-13
DE59700001D1 (en) 1998-06-25
DE19704525A1 (en) 1997-08-14
EP0788866A3 (en) 1998-01-07

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee
RZN Patent revoked