DE3486202D1 - Process for reducing the release of formaldehyde from veneered chipboard and fiberboard. - Google Patents

Process for reducing the release of formaldehyde from veneered chipboard and fiberboard.

Info

Publication number
DE3486202D1
DE3486202D1 DE84114876T DE3486202T DE3486202D1 DE 3486202 D1 DE3486202 D1 DE 3486202D1 DE 84114876 T DE84114876 T DE 84114876T DE 3486202 T DE3486202 T DE 3486202T DE 3486202 D1 DE3486202 D1 DE 3486202D1
Authority
DE
Germany
Prior art keywords
formaldehyde
fiberboard
release
reducing
veneered
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.)
Expired - Fee Related
Application number
DE84114876T
Other languages
German (de)
Inventor
Edmone Prof Dr Ing Roffael
Hans-Albrecht May
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.)
Casco Adhesives AB
Original Assignee
Casco Nobel AB
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
Application filed by Casco Nobel AB filed Critical Casco Nobel AB
Priority to DE84114876T priority Critical patent/DE3486202D1/en
Application granted granted Critical
Publication of DE3486202D1 publication Critical patent/DE3486202D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
    • 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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

Method of decreasing the formaldehyde emission of chip and fibre boards of emission class E1 which are veneered with refining layers, characterised in that, before veneering, the boards are treated in a manner known per se with aqueous solutions of urea and/or other ammonia-eliminating compounds, and in that the refining layers are subsequently applied in a manner known per se.
DE84114876T 1983-12-07 1984-12-06 Process for reducing the release of formaldehyde from veneered chipboard and fiberboard. Expired - Fee Related DE3486202D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE84114876T DE3486202D1 (en) 1983-12-07 1984-12-06 Process for reducing the release of formaldehyde from veneered chipboard and fiberboard.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3344239A DE3344239C2 (en) 1983-12-07 1983-12-07 Process for reducing the formaldehyde release from chipboard and fiberboard veneered with finishing layers
DE84114876T DE3486202D1 (en) 1983-12-07 1984-12-06 Process for reducing the release of formaldehyde from veneered chipboard and fiberboard.

Publications (1)

Publication Number Publication Date
DE3486202D1 true DE3486202D1 (en) 1993-09-30

Family

ID=6216269

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3344239A Expired DE3344239C2 (en) 1983-12-07 1983-12-07 Process for reducing the formaldehyde release from chipboard and fiberboard veneered with finishing layers
DE84114876T Expired - Fee Related DE3486202D1 (en) 1983-12-07 1984-12-06 Process for reducing the release of formaldehyde from veneered chipboard and fiberboard.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3344239A Expired DE3344239C2 (en) 1983-12-07 1983-12-07 Process for reducing the formaldehyde release from chipboard and fiberboard veneered with finishing layers

Country Status (3)

Country Link
EP (1) EP0144985B1 (en)
AT (1) ATE93444T1 (en)
DE (2) DE3344239C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815204A1 (en) * 1988-05-04 1989-11-16 Gruber & Weber Gmbh Co Kg PROCESS FOR PRODUCING COMPOSITE MATERIALS WITH REDUCED FORMALDEHYDE EMISSION
DE3943488C2 (en) * 1989-09-14 1999-05-27 Dieter Ekkehard Dip Autenrieth Process for reducing or eliminating free formaldehyde with carbamates, which are generated on the substrate in the critical phase when formaldehyde is released
DE4234871C1 (en) * 1992-10-17 1994-03-17 Achim Dr Ing Moeller Method and device for the production of wood-based panels
PL363916A1 (en) * 2001-03-12 2004-11-29 Akzo Nobel N.V. Method of reducing the emission of formaldehyde from formaldehyde laden layered products
US6749949B2 (en) * 2001-03-12 2004-06-15 Akzo Nobel N.V. Method of producing formaldehyde laden layered products having reduced emission of formaldehyde
ES2315346T3 (en) * 2001-03-12 2009-04-01 Akzo Nobel Coatings International B.V. METHOD TO REDUCE THE EMISSION OF FORMALDEHYDE OF STRATIFIED PRODUCTS.
HUE039471T2 (en) * 2007-01-11 2019-01-28 Fritz Egger Gmbh & Co Og Method for manufacturing a moulded form containing cellulose
EP2181818A3 (en) 2008-10-28 2012-08-22 IHD Institut für Holztechnologie Dresden gGmbH Method for manufacturing wood fibre substances and wood fibre substances with lower emissions of volatile VOC
EP4023812A1 (en) 2020-12-29 2022-07-06 MM BOARD & PAPER GmbH Method for producing wood-based products

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028484B2 (en) * 1971-12-15 1975-09-16
FI70385C (en) * 1978-04-28 1991-08-27 Casco Ab SAETT ATT FRAMSTAELLA CELLULOSABASERADE SKIVMATERIAL OCH KOMPOSITION HAERFOER. AL OCH COMPOSITION HAERFOER
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

Also Published As

Publication number Publication date
DE3344239A1 (en) 1985-08-01
ATE93444T1 (en) 1993-09-15
EP0144985A3 (en) 1987-11-11
EP0144985B1 (en) 1993-08-25
DE3344239C2 (en) 1986-07-24
EP0144985A2 (en) 1985-06-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee