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
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.
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)
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 |
EP1368169B1 (en) | 2001-03-12 | 2008-10-01 | Akzo Nobel Coatings International B.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 |
PL363912A1 (en) * | 2001-03-12 | 2004-11-29 | Akzo Nobel N.V. | Method of reducing the emission of formaldehyde from formaldehyde layered products |
TR201810178T4 (en) * | 2007-01-11 | 2018-08-27 | Fritz Egger Gmbh & Co Og | METHOD FOR PRODUCING A MOLDED OBJECT WITH CELLULOSE. |
DE102009046127A1 (en) | 2008-10-28 | 2010-04-29 | Institut Für Holztechnologie Dresden Gemeinnützige Gmbh | Process for the production of wood fiber materials and wood fiber materials with reduced emission of volatile VOCs |
EP4023812A1 (en) | 2020-12-29 | 2022-07-06 | MM BOARD & PAPER GmbH | Method for producing wood-based products |
Family Cites Families (4)
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 |
-
1983
- 1983-12-07 DE DE3344239A patent/DE3344239C2/en not_active Expired
-
1984
- 1984-12-06 DE DE84114876T patent/DE3486202D1/en not_active Expired - Fee Related
- 1984-12-06 AT AT84114876T patent/ATE93444T1/en not_active IP Right Cessation
- 1984-12-06 EP EP84114876A patent/EP0144985B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0144985A3 (en) | 1987-11-11 |
DE3344239A1 (en) | 1985-08-01 |
EP0144985A2 (en) | 1985-06-19 |
DE3344239C2 (en) | 1986-07-24 |
EP0144985B1 (en) | 1993-08-25 |
ATE93444T1 (en) | 1993-09-15 |
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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 |