ATE166278T1 - METHOD FOR REDUCING THE FORMALDEHYDE LOSS OF LIGNOCELLULOSE PRODUCTS - Google Patents

METHOD FOR REDUCING THE FORMALDEHYDE LOSS OF LIGNOCELLULOSE PRODUCTS

Info

Publication number
ATE166278T1
ATE166278T1 AT95112789T AT95112789T ATE166278T1 AT E166278 T1 ATE166278 T1 AT E166278T1 AT 95112789 T AT95112789 T AT 95112789T AT 95112789 T AT95112789 T AT 95112789T AT E166278 T1 ATE166278 T1 AT E166278T1
Authority
AT
Austria
Prior art keywords
reducing
lignocellulose
lignocellulose products
formaldehyde loss
hcho
Prior art date
Application number
AT95112789T
Other languages
German (de)
Inventor
Bistram Eberhard V
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=6527279&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE166278(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 ATE166278T1 publication Critical patent/ATE166278T1/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)
  • Compounds Of Unknown Constitution (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

Redn. in HCHO generation in aminoplast-bonded, pressed lignocellulose articles (esp. wood- or fibre-board) is effected by: (a) adding condensed tannin to the lignocellulose before, during or after applying the aminoplast; and (b) applying an HCHO-reactive material after pressing.
AT95112789T 1994-09-02 1995-08-14 METHOD FOR REDUCING THE FORMALDEHYDE LOSS OF LIGNOCELLULOSE PRODUCTS ATE166278T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4431316A DE4431316C1 (en) 1994-09-02 1994-09-02 Process for reducing the release of formaldehyde from chipboard or fiberboard

Publications (1)

Publication Number Publication Date
ATE166278T1 true ATE166278T1 (en) 1998-06-15

Family

ID=6527279

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95112789T ATE166278T1 (en) 1994-09-02 1995-08-14 METHOD FOR REDUCING THE FORMALDEHYDE LOSS OF LIGNOCELLULOSE PRODUCTS

Country Status (3)

Country Link
EP (1) EP0699510B1 (en)
AT (1) ATE166278T1 (en)
DE (2) DE4431316C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE166279T1 (en) * 1996-02-09 1998-06-15 Schlingmann Gmbh & Co METHOD FOR PRODUCING LOW-FORMALDEHYDE TANNINE BONDED WOOD CHIPBOARD AND FIBERBOARD
DE19751326C2 (en) * 1997-11-19 2001-01-04 Pfleiderer Unternehmensverwalt Process for the production of wood materials using used, residual and waste wood materials
DE69730221T2 (en) * 1997-12-15 2005-08-18 Silva S.R.L., Pamparato Thermosetting adhesives of condensed tannins and use in the wood industry
EP1266730B1 (en) * 2001-06-12 2006-03-29 Edmone Roffael Method of manufacturing moisture resistant fibreboards
DE20316621U1 (en) * 2003-10-28 2004-02-12 Fritz Egger Gmbh & Co Low-emission OSB board
DE102005019627B3 (en) * 2005-04-26 2006-10-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Medium density fiberboards, of digested ligno cellulose refined into fibers, contains a bonding agent giving a low emission of volatile organic compounds
JP2011511874A (en) 2008-02-11 2011-04-14 ビーエーエスエフ ソシエタス・ヨーロピア Formaldehyde-free binder for wood raw material production
EP2172333A1 (en) 2008-09-19 2010-04-07 Basf Se Multi-layered form bodies with low formaldehyde emission containing lignocellulose
US8623501B2 (en) 2010-03-04 2014-01-07 Basf Se Lignocellulose materials having good mechanical properties
US8920923B2 (en) 2010-03-04 2014-12-30 Basf Se Lignocellulose materials having good mechanical properties

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
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
DE3438735A1 (en) * 1984-10-23 1986-06-26 Desowag-Bayer Holzschutz GmbH, 4000 Düsseldorf Process for producing chipboards or fibreboards
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
DE4133445C2 (en) * 1991-10-09 1995-04-20 Fraunhofer Ges Forschung Process for the production of chipboard and medium density fibreboard

Also Published As

Publication number Publication date
DE4431316C1 (en) 1996-05-02
EP0699510A2 (en) 1996-03-06
EP0699510B1 (en) 1998-05-20
DE59502232D1 (en) 1998-06-25
EP0699510A3 (en) 1996-07-10

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Legal Events

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RZN Patent revoked