DK48978A - Formaldehydfri spaanplade - Google Patents

Formaldehydfri spaanplade

Info

Publication number
DK48978A
DK48978A DK48978A DK48978A DK48978A DK 48978 A DK48978 A DK 48978A DK 48978 A DK48978 A DK 48978A DK 48978 A DK48978 A DK 48978A DK 48978 A DK48978 A DK 48978A
Authority
DK
Denmark
Prior art keywords
formaldehyd
chipboard
free
free chipboard
Prior art date
Application number
DK48978A
Other languages
English (en)
Other versions
DK153636B (da
DK153636C (da
Inventor
O Smedberg
Original Assignee
Ry 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 Ry Ab filed Critical Ry Ab
Publication of DK48978A publication Critical patent/DK48978A/da
Publication of DK153636B publication Critical patent/DK153636B/da
Application granted granted Critical
Publication of DK153636C publication Critical patent/DK153636C/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G85/00—General processes for preparing compounds provided for in this subclass
DK048978A 1977-02-03 1978-02-02 Fremgangsmaade til at befri spaanplader for formaldehyd DK153636C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7701189A SE403893C (sv) 1977-02-03 1977-02-03 Sett att befria spanskivor fran formaldehyd genom behandling med ammoniak uder bildning av hexametylentetraamin
SE7701189 1977-02-03

Publications (3)

Publication Number Publication Date
DK48978A true DK48978A (da) 1978-08-04
DK153636B DK153636B (da) 1988-08-08
DK153636C DK153636C (da) 1988-12-19

Family

ID=20330357

Family Applications (1)

Application Number Title Priority Date Filing Date
DK048978A DK153636C (da) 1977-02-03 1978-02-02 Fremgangsmaade til at befri spaanplader for formaldehyd

Country Status (7)

Country Link
DE (1) DE2804514A1 (da)
DK (1) DK153636C (da)
FI (1) FI69269C (da)
FR (1) FR2379374A1 (da)
GB (1) GB1598852A (da)
NO (1) NO155482C (da)
SE (1) SE403893C (da)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829021C2 (de) * 1978-07-01 1980-08-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen Verfahren zur Verminderung der Formaldehydabgabe von Spanplatten
SE424835B (sv) * 1978-07-07 1982-08-16 Ry Ab Maskin for att behandla lignocellulosahaltiga skivmaterial med gasformiga emnen
EP0027487A1 (fr) * 1979-10-10 1981-04-29 Jean-Baptiste Verbestel Procédé et dispositif de traitement de matériaux lignocellulosiques liés à l'aide de résines à base de formaldéhyde
US4478891A (en) * 1982-09-30 1984-10-23 Ab Statens Skogsindustrier Method of reducing the emission of formaldehyde from particle board bound with carbamide resin
DE4327774A1 (de) * 1993-08-18 1995-02-23 Fraunhofer Ges Forschung Verfahren zur Herstellung von mitteldichten Holzfaserplatten (MDF)
FI971899A (fi) * 1997-05-02 1998-11-03 Sunds Defibrator Panelhandling Menetelmä ja laitteisto levymäisen materiaalin käsittelemiseksi kaasum aisella aineella
DE102007054123B4 (de) 2006-11-15 2012-03-15 Edmone Roffael Verfahren zur Herstellung von Holzfaserplatten mit verringerter Formaldehydemission, hoher Feuchtebeständigkeit und Hydrolyseresistenz der Verleimung
DE102008023007A1 (de) 2007-11-11 2010-06-02 Roffael, Edmone, Prof. Dr.-Ing. Verfahren zur Herstellung von Holzfaserplatten mit verringerter Formaldehydemission, hoher Feuchtebeständigkeit und Hydrolyseresistenz der Verleimung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB462741A (en) * 1935-04-30 1937-03-15 Josef Berghoff Improvements in moulded products and method of making the same
SE327622B (da) * 1964-11-30 1970-08-24 S Lundgren
US3362080A (en) * 1966-02-14 1968-01-09 Beloit Corp Through drying of paper
BE712436A (da) * 1968-03-19 1968-07-31

Also Published As

Publication number Publication date
DK153636B (da) 1988-08-08
FI69269B (fi) 1985-09-30
SE7701189L (sv) 1978-08-04
GB1598852A (en) 1981-09-23
NO155482C (no) 1987-04-08
FI780328A (fi) 1978-08-04
NO780374L (no) 1978-08-04
SE403893C (sv) 1984-10-18
FR2379374A1 (fr) 1978-09-01
FR2379374B1 (da) 1983-05-27
SE403893B (sv) 1978-09-11
DE2804514A1 (de) 1978-08-10
NO155482B (no) 1986-12-29
DK153636C (da) 1988-12-19
FI69269C (fi) 1986-01-10
DE2804514C2 (da) 1987-05-21

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Legal Events

Date Code Title Description
PBP Patent lapsed