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FR2693398B1 - Densification process for softwoods and products obtained by this process. - Google Patents

Densification process for softwoods and products obtained by this process.

Info

Publication number
FR2693398B1
FR2693398B1 FR9208600A FR9208600A FR2693398B1 FR 2693398 B1 FR2693398 B1 FR 2693398B1 FR 9208600 A FR9208600 A FR 9208600A FR 9208600 A FR9208600 A FR 9208600A FR 2693398 B1 FR2693398 B1 FR 2693398B1
Authority
FR
France
Prior art keywords
wood
compression
resin
impregnation
melamine
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.)
Expired - Fee Related
Application number
FR9208600A
Other languages
French (fr)
Other versions
FR2693398A1 (en
Inventor
Pierre Morlier
Jean-Francois Dumail
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.)
EUROGAM
Original Assignee
EUROGAM
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 EUROGAM filed Critical EUROGAM
Priority to FR9208600A priority Critical patent/FR2693398B1/en
Priority to PCT/FR1993/000711 priority patent/WO1994001259A1/en
Priority to AU45730/93A priority patent/AU4573093A/en
Publication of FR2693398A1 publication Critical patent/FR2693398A1/en
Application granted granted Critical
Publication of FR2693398B1 publication Critical patent/FR2693398B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/001—Heating
    • 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
    • B27K3/02—Processes; Apparatus
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
    • C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The invention relates to a method for densifying softwood, comprising the impregnation of the wood with an organic compound, followed by compression. The organic compound is a melamine-formol resin, impregnation being carried out while the polymerization of such resin is negligible; the wood thus impregnated is compressed so as to considerably reduce its volume, such compression being carried out at speed and limit compression ratio lower than those causing mechanical deterioration of the wood; the polymerization of the melamine-formol resin takes place and the wood is dried by maintaining it under pressure at a temperature of approximately 120 to 150 C for sufficient time.
FR9208600A 1992-07-10 1992-07-10 Densification process for softwoods and products obtained by this process. Expired - Fee Related FR2693398B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9208600A FR2693398B1 (en) 1992-07-10 1992-07-10 Densification process for softwoods and products obtained by this process.
PCT/FR1993/000711 WO1994001259A1 (en) 1992-07-10 1993-07-09 Method for densifying softwood, and products obtained by such method
AU45730/93A AU4573093A (en) 1992-07-10 1993-07-09 Method for densifying softwood, and products obtained by such method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9208600A FR2693398B1 (en) 1992-07-10 1992-07-10 Densification process for softwoods and products obtained by this process.

Publications (2)

Publication Number Publication Date
FR2693398A1 FR2693398A1 (en) 1994-01-14
FR2693398B1 true FR2693398B1 (en) 1994-10-07

Family

ID=9431801

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9208600A Expired - Fee Related FR2693398B1 (en) 1992-07-10 1992-07-10 Densification process for softwoods and products obtained by this process.

Country Status (3)

Country Link
AU (1) AU4573093A (en)
FR (1) FR2693398B1 (en)
WO (1) WO1994001259A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2722724B1 (en) * 1994-07-22 1996-10-04 Bois Densifies WOODEN DENSIFICATION PROCESS AND PRODUCTS OBTAINED THEREBY
FR2738495B1 (en) * 1995-09-12 1997-12-05 Salomon Sa PROCESS FOR THE MANUFACTURE OF A SKI OR SKI COMPONENT COMPRISING A THERMOCOMPRESSION STAGE OF A WOODEN CORE BLANK
CN116117952A (en) 2017-12-29 2023-05-16 Ahf有限责任公司 Method for forming a flooring assembly
CN111308057B (en) * 2019-11-04 2022-02-15 内蒙古农业大学 Method for determining wood section processing conditions for veneer cutting and evaluating processing effect

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH184937A (en) * 1935-12-20 1936-06-30 Schuerch Paul Method of hardening wood.
US3556929A (en) * 1967-08-01 1971-01-19 Le Roy L Fellows Tremolite faced laminated panels
AT326339B (en) * 1971-09-14 1975-12-10 Inst Khim Drevesiny Akademii N PROCESS FOR COMPACTING SOLID WOOD
JPS5832807A (en) * 1981-08-24 1983-02-25 Daiken Trade & Ind Co Ltd Modifying method of woody material
FR2617428A1 (en) * 1987-07-02 1989-01-06 Francois Mathis Coating material made of wood strips impregnated with melamine resin polymerised with heating under physical pressure
FR2658750A1 (en) * 1990-02-26 1991-08-30 Ober Ind Process of manufacture, starting with bulk or veneering, sawn, sectioned or unwound wood, of densified and hard panels

Also Published As

Publication number Publication date
FR2693398A1 (en) 1994-01-14
AU4573093A (en) 1994-01-31
WO1994001259A1 (en) 1994-01-20

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Legal Events

Date Code Title Description
ST Notification of lapse