FI69269C - Formaldehydfri spaonskiva - Google Patents

Formaldehydfri spaonskiva Download PDF

Info

Publication number
FI69269C
FI69269C FI780328A FI780328A FI69269C FI 69269 C FI69269 C FI 69269C FI 780328 A FI780328 A FI 780328A FI 780328 A FI780328 A FI 780328A FI 69269 C FI69269 C FI 69269C
Authority
FI
Finland
Prior art keywords
ammonia
formaldehyde
particle board
chipboard
spaonskiva
Prior art date
Application number
FI780328A
Other languages
English (en)
Finnish (fi)
Other versions
FI780328A (fi
FI69269B (fi
Inventor
Olof Smedberg
Original Assignee
Papyrus 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 Papyrus Ab filed Critical Papyrus Ab
Publication of FI780328A publication Critical patent/FI780328A/fi
Application granted granted Critical
Publication of FI69269B publication Critical patent/FI69269B/fi
Publication of FI69269C publication Critical patent/FI69269C/fi

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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Forests & Forestry (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)
FI780328A 1977-02-03 1978-02-01 Formaldehydfri spaonskiva FI69269C (fi)

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
FI780328A FI780328A (fi) 1978-08-04
FI69269B FI69269B (fi) 1985-09-30
FI69269C true FI69269C (fi) 1986-01-10

Family

ID=20330357

Family Applications (1)

Application Number Title Priority Date Filing Date
FI780328A FI69269C (fi) 1977-02-03 1978-02-01 Formaldehydfri spaonskiva

Country Status (7)

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

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 (sv) 1997-05-02 1998-11-03 Sunds Defibrator Panelhandling Förfarande och apparatur för behandling av skivformigt material med ga sformigt ämne
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 (sv) * 1964-11-30 1970-08-24 S Lundgren
US3362080A (en) * 1966-02-14 1968-01-09 Beloit Corp Through drying of paper
BE712436A (sv) * 1968-03-19 1968-07-31

Also Published As

Publication number Publication date
DK48978A (da) 1978-08-04
DK153636C (da) 1988-12-19
SE7701189L (sv) 1978-08-04
SE403893C (sv) 1984-10-29
FR2379374A1 (fr) 1978-09-01
NO780374L (no) 1978-08-04
NO155482C (no) 1987-04-08
FI780328A (fi) 1978-08-04
SE403893B (sv) 1978-09-11
DE2804514A1 (de) 1978-08-10
DK153636B (da) 1988-08-08
DE2804514C2 (sv) 1987-05-21
NO155482B (no) 1986-12-29
FR2379374B1 (sv) 1983-05-27
FI69269B (fi) 1985-09-30
GB1598852A (en) 1981-09-23

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: KIRKEGAARD, MICHAEL