EP0197674A1 - Procédé pour densifier des bois de basse densité - Google Patents

Procédé pour densifier des bois de basse densité Download PDF

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Publication number
EP0197674A1
EP0197674A1 EP86301862A EP86301862A EP0197674A1 EP 0197674 A1 EP0197674 A1 EP 0197674A1 EP 86301862 A EP86301862 A EP 86301862A EP 86301862 A EP86301862 A EP 86301862A EP 0197674 A1 EP0197674 A1 EP 0197674A1
Authority
EP
European Patent Office
Prior art keywords
wood
ammonia
wood member
process according
thickness
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
EP86301862A
Other languages
German (de)
English (en)
Other versions
EP0197674B1 (fr
Inventor
Peter Favot
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86301862T priority Critical patent/ATE52958T1/de
Publication of EP0197674A1 publication Critical patent/EP0197674A1/fr
Application granted granted Critical
Publication of EP0197674B1 publication Critical patent/EP0197674B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K1/00—Damping wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/20—Compounds of alkali metals or ammonium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/06—Softening or hardening of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing

Definitions

  • the wood which is used in the present invention is a low quality, low density wood preferably of the hardwood type, typically having a density of about 300 - 400 Kg/m 3 .
  • Coniferous woods of high gum content e.g. pine, spruce, balsam, etc.
  • poplar alder, cotton-wood, rubber tree and soft maple.
  • sapwood sapwood only, substantially free of any heartwood.
  • the wood member At the end of the pressing stage, the wood member remains in a compressed state of reduced thickness while still containing a considerable quantity of moisture.
  • Roughly sawn planks of 1 and 2 inch thicknesses were cut from green poplar and alder.
  • the test planks had a width of 4 inches, a length of 1 1/2 - 2 feet and a moisture content of 80%.
  • densified wood products Another important characteristic of the densified wood products is that they absorbed 40 - 50% less water during a 2 hour soak period than did the high quality natural hardwoods.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP86301862A 1985-03-15 1986-03-14 Procédé pour densifier des bois de basse densité Expired - Lifetime EP0197674B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86301862T ATE52958T1 (de) 1985-03-15 1986-03-14 Verfahren zur verdichtung von hoelzern mit niedriger dichte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA476650 1985-03-15
CA000476650A CA1236255A (fr) 1985-03-15 1985-03-15 Methode de densification des bois legers

Publications (2)

Publication Number Publication Date
EP0197674A1 true EP0197674A1 (fr) 1986-10-15
EP0197674B1 EP0197674B1 (fr) 1990-05-23

Family

ID=4130037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86301862A Expired - Lifetime EP0197674B1 (fr) 1985-03-15 1986-03-14 Procédé pour densifier des bois de basse densité

Country Status (4)

Country Link
EP (1) EP0197674B1 (fr)
AT (1) ATE52958T1 (fr)
CA (1) CA1236255A (fr)
DE (1) DE3671403D1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658750A1 (fr) * 1990-02-26 1991-08-30 Ober Ind Procede de fabrication, partant de bois massif ou de placage, scie, tranche ou deroule, de panneaux densifies et durs.
WO1993019910A1 (fr) * 1992-04-04 1993-10-14 Woodform Design Ltd Pliage et profilage de panneaux de fibres de densite moyenne (mdf)
WO1993019911A1 (fr) * 1992-04-04 1993-10-14 Woodform Design Ltd Plastification de panneaux agglomeres a moyenne densite
EP0623433A1 (fr) * 1993-04-29 1994-11-09 Shell Internationale Researchmaatschappij B.V. Procédé de valorisation de bois de basse qualité
FR2796586A1 (fr) 1999-07-20 2001-01-26 Frederic Voisin Procede et dispositif de compression, cintrage et jointage de douelles pour fabriquer des futs ou des barriques
WO2011136728A1 (fr) * 2010-04-28 2011-11-03 MB Ädelträ AB Procédé pour traiter un panneau ou un élément de panneau
CZ304024B6 (cs) * 2008-12-02 2013-08-28 Mendelova zemedelská a lesnická univerzita v Brne Zpusob rovnomerného plosného zhustování dreva, zejména smrkového
WO2018003935A1 (fr) * 2016-07-01 2018-01-04 公立大学法人北九州市立大学 Procédé de fabrication de bois stratifié

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282313A (en) * 1964-11-24 1966-11-01 Research Corp Method of forming wood and formed wood product
GB1261686A (en) * 1969-06-10 1972-01-26 Neste Oy Improvements in plasticizing wood and the production of shaped wooden articles
AT326339B (de) * 1971-09-14 1975-12-10 Inst Khim Drevesiny Akademii N Verfahren zum verdichten von vollholz

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3282313A (en) * 1964-11-24 1966-11-01 Research Corp Method of forming wood and formed wood product
GB1261686A (en) * 1969-06-10 1972-01-26 Neste Oy Improvements in plasticizing wood and the production of shaped wooden articles
AT326339B (de) * 1971-09-14 1975-12-10 Inst Khim Drevesiny Akademii N Verfahren zum verdichten von vollholz

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658750A1 (fr) * 1990-02-26 1991-08-30 Ober Ind Procede de fabrication, partant de bois massif ou de placage, scie, tranche ou deroule, de panneaux densifies et durs.
WO1993019910A1 (fr) * 1992-04-04 1993-10-14 Woodform Design Ltd Pliage et profilage de panneaux de fibres de densite moyenne (mdf)
WO1993019911A1 (fr) * 1992-04-04 1993-10-14 Woodform Design Ltd Plastification de panneaux agglomeres a moyenne densite
EP0623433A1 (fr) * 1993-04-29 1994-11-09 Shell Internationale Researchmaatschappij B.V. Procédé de valorisation de bois de basse qualité
FR2796586A1 (fr) 1999-07-20 2001-01-26 Frederic Voisin Procede et dispositif de compression, cintrage et jointage de douelles pour fabriquer des futs ou des barriques
CZ304024B6 (cs) * 2008-12-02 2013-08-28 Mendelova zemedelská a lesnická univerzita v Brne Zpusob rovnomerného plosného zhustování dreva, zejména smrkového
WO2011136728A1 (fr) * 2010-04-28 2011-11-03 MB Ädelträ AB Procédé pour traiter un panneau ou un élément de panneau
WO2018003935A1 (fr) * 2016-07-01 2018-01-04 公立大学法人北九州市立大学 Procédé de fabrication de bois stratifié
JPWO2018003935A1 (ja) * 2016-07-01 2019-04-25 公立大学法人北九州市立大学 集成材の製造方法

Also Published As

Publication number Publication date
CA1236255A (fr) 1988-05-10
ATE52958T1 (de) 1990-06-15
EP0197674B1 (fr) 1990-05-23
DE3671403D1 (de) 1990-06-28

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