FI70686C - Saett att minska emissionen av formaldehyd fraon karbamidhartsbundna spaonskivor - Google Patents

Saett att minska emissionen av formaldehyd fraon karbamidhartsbundna spaonskivor Download PDF

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Publication number
FI70686C
FI70686C FI803093A FI803093A FI70686C FI 70686 C FI70686 C FI 70686C FI 803093 A FI803093 A FI 803093A FI 803093 A FI803093 A FI 803093A FI 70686 C FI70686 C FI 70686C
Authority
FI
Finland
Prior art keywords
ammonium
solution
sheets
formaldehyde
urea
Prior art date
Application number
FI803093A
Other languages
English (en)
Finnish (fi)
Other versions
FI70686B (fi
FI803093A (fi
Inventor
Anders Wilhelm Westling
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
Priority claimed from SE7908455A external-priority patent/SE436330B/sv
Priority claimed from SE8000664A external-priority patent/SE427096B/sv
Application filed by Swedspan Ab filed Critical Swedspan Ab
Publication of FI803093A publication Critical patent/FI803093A/fi
Publication of FI70686B publication Critical patent/FI70686B/fi
Application granted granted Critical
Publication of FI70686C publication Critical patent/FI70686C/fi

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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
FI803093A 1979-10-11 1980-09-30 Saett att minska emissionen av formaldehyd fraon karbamidhartsbundna spaonskivor FI70686C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE7908455A SE436330B (sv) 1979-10-11 1979-10-11 Sett att minska mengden fri formaldehyd i karbamidhartsbundna spanskivor
SE7908455 1979-10-11
SE8000664 1980-01-28
SE8000664A SE427096B (sv) 1980-01-28 1980-01-28 Sett att minska emissionen av formaldehyd fran karbamidhartsbundna spanskivor

Publications (3)

Publication Number Publication Date
FI803093A FI803093A (fi) 1981-04-12
FI70686B FI70686B (fi) 1986-06-26
FI70686C true FI70686C (fi) 1986-10-06

Family

ID=26657354

Family Applications (1)

Application Number Title Priority Date Filing Date
FI803093A FI70686C (fi) 1979-10-11 1980-09-30 Saett att minska emissionen av formaldehyd fraon karbamidhartsbundna spaonskivor

Country Status (7)

Country Link
EP (1) EP0027583B1 (da)
CA (1) CA1160416A (da)
DE (1) DE3067363D1 (da)
DK (1) DK155178C (da)
ES (1) ES495806A0 (da)
FI (1) FI70686C (da)
NO (1) NO161045C (da)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE450939B (sv) * 1983-11-15 1987-08-17 Swedspan Ab Suspension av ammoniumkarbonat och/eller -vetekarbonat med forbettrad stabilitet och dess anvendning
DE3427694A1 (de) * 1984-07-27 1986-02-06 Basf Ag, 6700 Ludwigshafen Formaldehyd bindendes mittel, dessen verwendung bei der herstellung von spanholzwerkstoffen sowie ein verfahren zur herstellung von spanholzwerkstoffen mit verringerter formaldehydemission
GB2170208B (en) * 1985-01-29 1988-06-22 Enigma Nv A formaldehyde binder
US5071446A (en) * 1990-03-14 1991-12-10 Union Camp Corporation Nuggets for heating and a method of making the same
DE4431316C1 (de) * 1994-09-02 1996-05-02 Schlingmann Gmbh & Co Verfahren zur Verminderung der Formaldehydabgabe von Holzspan- oder Faserplatten
EP0788866B1 (de) * 1996-02-09 1998-05-20 Schlingmann GmbH & Co. Verfahren zur Herstellung von formaldehydarmen tanningebundenen Holzspan- und Faserplatten
US6749949B2 (en) 2001-03-12 2004-06-15 Akzo Nobel N.V. Method of producing formaldehyde laden layered products having reduced emission of formaldehyde
US7678224B2 (en) 2003-03-25 2010-03-16 Akzo Nobel N.V. Method for reducing emissions and method for producing a wooden product
WO2004085125A2 (en) * 2003-03-25 2004-10-07 Akzo Nobel Coatings International B.V. Method for reducing emissions and method for producing a wooden product

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE529099A (da) * 1953-05-26 1900-01-01
US3950472A (en) * 1975-02-26 1976-04-13 Continental Can Company, Inc. Molding wood articles from ammonium salt-wood particle mixtures
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
DE2929775A1 (de) * 1979-07-23 1981-02-19 Basf Ag Verfahren zur verminderung der formaldehydabgabe aus spanplatten

Also Published As

Publication number Publication date
ES8106437A1 (es) 1981-07-01
DE3067363D1 (en) 1984-05-10
NO161045C (no) 1989-06-28
NO803028L (no) 1981-04-13
FI70686B (fi) 1986-06-26
DK155178B (da) 1989-02-27
FI803093A (fi) 1981-04-12
DK155178C (da) 1989-07-10
ES495806A0 (es) 1981-07-01
NO161045B (no) 1989-03-20
EP0027583B1 (en) 1984-04-04
DK428580A (da) 1981-04-12
CA1160416A (en) 1984-01-17
EP0027583A3 (en) 1981-05-06
EP0027583A2 (en) 1981-04-29

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: CASCO NOBEL AB

MM Patent lapsed

Owner name: CASCO NOBEL AB