FR2379374A1 - Panneau de particules exempt de formaldehyde - Google Patents

Panneau de particules exempt de formaldehyde

Info

Publication number
FR2379374A1
FR2379374A1 FR7803143A FR7803143A FR2379374A1 FR 2379374 A1 FR2379374 A1 FR 2379374A1 FR 7803143 A FR7803143 A FR 7803143A FR 7803143 A FR7803143 A FR 7803143A FR 2379374 A1 FR2379374 A1 FR 2379374A1
Authority
FR
France
Prior art keywords
particle board
formaldehyde free
free particle
panel
formaldehyde
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
FR7803143A
Other languages
English (en)
Other versions
FR2379374B1 (fr
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.)
Ry AB
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 FR2379374A1 publication Critical patent/FR2379374A1/fr
Application granted granted Critical
Publication of FR2379374B1 publication Critical patent/FR2379374B1/fr
Granted legal-status Critical Current

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (AREA)
  • Materials Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Vehicle Body Suspensions (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Procédé consistant à faire agir du gaz ammoniac sur le formaldéhyde du panneau. Le panneau 1 de particules passe entre deux capots 2 et 3 dont le premier contient du gaz ammoniac et le second est mis en dépression par une pompe. Le panneau est évacué par les rouleaux 6, alors que le panneau suivant est introduit par les rouleaux 4 et 7.
FR7803143A 1977-02-03 1978-02-03 Panneau de particules exempt de formaldehyde Granted FR2379374A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2379374A1 true FR2379374A1 (fr) 1978-09-01
FR2379374B1 FR2379374B1 (fr) 1983-05-27

Family

ID=20330357

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7803143A Granted FR2379374A1 (fr) 1977-02-03 1978-02-03 Panneau de particules exempt de formaldehyde

Country Status (7)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006486A2 (fr) * 1978-07-01 1980-01-09 Swedspan Ab Procédé pour diminuer l'émission de formaldéhyde de panneaux de particules
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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE424835B (sv) * 1978-07-07 1982-08-16 Ry Ab Maskin for att behandla lignocellulosahaltiga skivmaterial med gasformiga emnen
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

Citations (2)

* 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
GB1262313A (en) * 1968-03-19 1972-02-02 Jean-Baptiste Verbestel Process for the manufacture of particle board or fibre board by incorporation of a binder in gaseous form

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE327622B (fr) * 1964-11-30 1970-08-24 S Lundgren
US3362080A (en) * 1966-02-14 1968-01-09 Beloit Corp Through drying of paper

Patent Citations (2)

* 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
GB1262313A (en) * 1968-03-19 1972-02-02 Jean-Baptiste Verbestel Process for the manufacture of particle board or fibre board by incorporation of a binder in gaseous form

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006486A2 (fr) * 1978-07-01 1980-01-09 Swedspan Ab Procédé pour diminuer l'émission de formaldéhyde de panneaux de particules
EP0006486A3 (en) * 1978-07-01 1980-01-23 Swedspan Ab Process for reducing the emission of formaldehyde by fibre boards
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

Also Published As

Publication number Publication date
DE2804514A1 (de) 1978-08-10
FI69269B (fi) 1985-09-30
SE7701189L (sv) 1978-08-04
FR2379374B1 (fr) 1983-05-27
FI780328A (fi) 1978-08-04
GB1598852A (en) 1981-09-23
SE403893B (sv) 1978-09-11
NO155482C (no) 1987-04-08
SE403893C (sv) 1984-10-29
NO780374L (no) 1978-08-04
DK48978A (da) 1978-08-04
DE2804514C2 (fr) 1987-05-21
FI69269C (fi) 1986-01-10
NO155482B (no) 1986-12-29
DK153636C (da) 1988-12-19
DK153636B (da) 1988-08-08

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse