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WO1997012735A3 - A method for impregnation of wood and wood based products - Google Patents

A method for impregnation of wood and wood based products Download PDF

Info

Publication number
WO1997012735A3
WO1997012735A3 PCT/NZ1996/000107 NZ9600107W WO9712735A3 WO 1997012735 A3 WO1997012735 A3 WO 1997012735A3 NZ 9600107 W NZ9600107 W NZ 9600107W WO 9712735 A3 WO9712735 A3 WO 9712735A3
Authority
WO
WIPO (PCT)
Prior art keywords
wood
chemical
impregnated
composition
based products
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.)
Ceased
Application number
PCT/NZ1996/000107
Other languages
French (fr)
Other versions
WO1997012735A2 (en
Inventor
Kourosh Nasheri
James Pendlebury
Jeanette Drysdale
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.)
New Zealand Institute for Bioeconomy Science Ltd
Original Assignee
New Zealand Institute for Bioeconomy Science Ltd
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 New Zealand Institute for Bioeconomy Science Ltd filed Critical New Zealand Institute for Bioeconomy Science Ltd
Priority to AU71010/96A priority Critical patent/AU721084B2/en
Priority to NZ318901A priority patent/NZ318901A/en
Publication of WO1997012735A2 publication Critical patent/WO1997012735A2/en
Publication of WO1997012735A3 publication Critical patent/WO1997012735A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • 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
    • B27K3/163—Compounds of boron
    • 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
    • B27K3/22—Compounds of zinc or copper
    • 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
    • B27K2240/00—Purpose of the treatment
    • B27K2240/30—Fireproofing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The invention relates to a method of impregnating wood or wood based products with a preservative or other wood modifying chemical under pressure. A composition comprising said chemical is impregnated into the wood under hydraulic pressure and the hydraulic pressure is controlled to control the amount of chemical impregnated into the wood. The hydraulic pressure is replaced with sufficient pneumatic pressure to hold the impregnated composition in the wood while the unused composition is removed from the treatment vessel. The pneumatic pressure remains applied to force the chemical further into the wood.
PCT/NZ1996/000107 1995-10-02 1996-10-01 A method for impregnation of wood and wood based products Ceased WO1997012735A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU71010/96A AU721084B2 (en) 1995-10-02 1996-10-01 A method for impregnation of wood and wood based products
NZ318901A NZ318901A (en) 1995-10-02 1996-10-01 A method for impregnation of wood and wood based products

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NZ280154 1995-10-02
NZ28015495 1995-10-02

Publications (2)

Publication Number Publication Date
WO1997012735A2 WO1997012735A2 (en) 1997-04-10
WO1997012735A3 true WO1997012735A3 (en) 1997-07-03

Family

ID=19925492

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1996/000107 Ceased WO1997012735A2 (en) 1995-10-02 1996-10-01 A method for impregnation of wood and wood based products

Country Status (3)

Country Link
AU (1) AU721084B2 (en)
WO (1) WO1997012735A2 (en)
ZA (1) ZA968275B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500505A1 (en) * 2001-07-18 2006-01-15 Innotech Betr Stechnikgesellsc METHOD FOR PRODUCING PRESSED COMPONENTS AND DEVICES FOR CARRYING OUT SAID METHOD
AU2003903242A0 (en) * 2003-06-25 2003-07-10 The University Of Melbourne Process for the treatment of wood
NZ531217A (en) * 2004-02-18 2005-12-23 Nz Forest Research Inst Ltd Impregnation process

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140981A (en) * 1935-04-11 1938-12-20 Philip C P Booty Process of impregnating wood and the like
US3968276A (en) * 1972-10-25 1976-07-06 Diversified Wood Products, Inc. Process for the preservation of wood
US4062991A (en) * 1973-08-15 1977-12-13 Fosroc A.G. Treatment of wood
US4303705A (en) * 1977-09-27 1981-12-01 Kelso Jr William C Treatment of wood with water-borne preservatives
US4466998A (en) * 1982-06-16 1984-08-21 Koppers Company, Inc. Wood impregnation
US4649065A (en) * 1985-07-08 1987-03-10 Mooney Chemicals, Inc. Process for preserving wood

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2140981A (en) * 1935-04-11 1938-12-20 Philip C P Booty Process of impregnating wood and the like
US3968276A (en) * 1972-10-25 1976-07-06 Diversified Wood Products, Inc. Process for the preservation of wood
US4062991A (en) * 1973-08-15 1977-12-13 Fosroc A.G. Treatment of wood
US4303705A (en) * 1977-09-27 1981-12-01 Kelso Jr William C Treatment of wood with water-borne preservatives
US4466998A (en) * 1982-06-16 1984-08-21 Koppers Company, Inc. Wood impregnation
US4649065A (en) * 1985-07-08 1987-03-10 Mooney Chemicals, Inc. Process for preserving wood

Also Published As

Publication number Publication date
WO1997012735A2 (en) 1997-04-10
ZA968275B (en) 1997-04-02
AU7101096A (en) 1997-04-28
AU721084B2 (en) 2000-06-22

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