EP0144985A3 - Method of decreasing the formaldehyde emission of veneered chip and fibre boards - Google Patents

Method of decreasing the formaldehyde emission of veneered chip and fibre boards Download PDF

Info

Publication number
EP0144985A3
EP0144985A3 EP84114876A EP84114876A EP0144985A3 EP 0144985 A3 EP0144985 A3 EP 0144985A3 EP 84114876 A EP84114876 A EP 84114876A EP 84114876 A EP84114876 A EP 84114876A EP 0144985 A3 EP0144985 A3 EP 0144985A3
Authority
EP
European Patent Office
Prior art keywords
veneered
decreasing
chip
formaldehyde emission
fibre boards
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
EP84114876A
Other languages
German (de)
Other versions
EP0144985B1 (en
EP0144985A2 (en
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
Swedspan 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 Swedspan AB filed Critical Swedspan AB
Priority to AT84114876T priority Critical patent/ATE93444T1/en
Publication of EP0144985A2 publication Critical patent/EP0144985A2/en
Publication of EP0144985A3 publication Critical patent/EP0144985A3/en
Application granted granted Critical
Publication of EP0144985B1 publication Critical patent/EP0144985B1/en
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
    • 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.
EP84114876A 1983-12-07 1984-12-06 Method of decreasing the formaldehyde emission of veneered chip and fibre boards Expired - Lifetime EP0144985B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114876T ATE93444T1 (en) 1983-12-07 1984-12-06 PROCESS FOR REDUCING FORMALDEHYDE RELEASE FROM VENEER 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
DE3344239 1983-12-07

Publications (3)

Publication Number Publication Date
EP0144985A2 EP0144985A2 (en) 1985-06-19
EP0144985A3 true EP0144985A3 (en) 1987-11-11
EP0144985B1 EP0144985B1 (en) 1993-08-25

Family

ID=6216269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114876A Expired - Lifetime EP0144985B1 (en) 1983-12-07 1984-12-06 Method of decreasing the formaldehyde emission of veneered chip and fibre boards

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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917159A1 (en) * 1978-04-28 1979-11-08 Casco Ab PROCESS FOR THE MANUFACTURING OF CELLULOSE-CONTAINING CARDBOARD MATERIALS AND COMPOSITION USED THEREOF
EP0006486A2 (en) * 1978-07-01 1980-01-09 Swedspan Ab Process for reducing the emission of formaldehyde by fibre boards
EP0012169A1 (en) * 1978-11-29 1980-06-25 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Multi-layered, mainly aminoplast-bound particle or fibre board

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028484B2 (en) * 1971-12-15 1975-09-16

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917159A1 (en) * 1978-04-28 1979-11-08 Casco Ab PROCESS FOR THE MANUFACTURING OF CELLULOSE-CONTAINING CARDBOARD MATERIALS AND COMPOSITION USED THEREOF
EP0006486A2 (en) * 1978-07-01 1980-01-09 Swedspan Ab Process for reducing the emission of formaldehyde by fibre boards
EP0012169A1 (en) * 1978-11-29 1980-06-25 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Multi-layered, mainly aminoplast-bound particle or fibre board

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT JAPANESE PATENT REPORT, Woche 7, Section Chemical, 1974, Zusammenfassung Nr. 74 12177V[07], Derwent Publications, GB; & JP-A-48 072 308 (KOWA CO. LTD) *

Also Published As

Publication number Publication date
DE3486202D1 (en) 1993-09-30
DE3344239A1 (en) 1985-08-01
ATE93444T1 (en) 1993-09-15
EP0144985B1 (en) 1993-08-25
DE3344239C2 (en) 1986-07-24
EP0144985A2 (en) 1985-06-19

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