GB1338080A - Methods for the fire-inhibiting impregnation of wood and - Google Patents
Methods for the fire-inhibiting impregnation of wood andInfo
- Publication number
- GB1338080A GB1338080A GB6057970A GB6057970A GB1338080A GB 1338080 A GB1338080 A GB 1338080A GB 6057970 A GB6057970 A GB 6057970A GB 6057970 A GB6057970 A GB 6057970A GB 1338080 A GB1338080 A GB 1338080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wood
- oven
- fire
- impregnating
- monomer component
- 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
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
- 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
- B27K3/0207—Pretreatment of wood before impregnation
- B27K3/0214—Drying
-
- 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
- B27K3/0278—Processes; Apparatus involving an additional treatment during or after 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
- B27K3/02—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
- B27K5/001—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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying 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
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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
1338080 Fire-proofing wood KANAMARK DANISH CANADIAN ENG CO Ltd AS 21 Dec 1970 [23 Dec 1969] 60579/70 Heading D1P A method for the fire-inhibiting impregnation of wood, e.g. in the form of veneers, sheets, flakes, chips or sawdust, comprises impregnating the wood in a dry state with a solution of a monomer component selected from phenol, dihydroxybenzenes, urea, melamine and mixtures thereof, heat treating to remove the solvent, impregnating with a formaldehyde solution, and heat treating to remove the solvent and to form a polymeric material by reaction of the monomer component with the formaldehyde. A fire inhibiting salt such as borax, and boric acid, may be incorporated in the monomer component. The solutions may be aqueous and applied at normal or reduced pressure, and at elevated temperature. In a plant for continuously carrying out the above method, wood is cut at 1 into a strip of veneer which is wound on a roll 2. Veneer from the roll is passed through a section 3 of a 160‹C oven for drying, through a double curtain of liquid for impregnating with the monomer component, through a second oven section 6 for solvent removal, through a double curtain of liquid at 7 for impregnating with the formaldehyde, through a third oven section 9 for solvent removal and polymer formation, and through a cooler 10 before being cut at 11 into lengths 13. In a modification, Fig. 2 (not shown) the oven sections 3, 6, 9 are replaced by separate longitudinally spaced ovens and the impregnation is effected by immersion. In a further modification, Fig. 3 (not shown) for carrying out the method discontinuously, the veneer is passed repeatedly through a single oven. For the impregnation of wood chips &c., the Figs. 1, 2 and 3 apparatus may incorporate a perforated conveyor belt for the transport of the chips &c. For the treatment of sawdust, a non-absorbing glass or nylon fibre conveyor belt is used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK683669AA DK129634B (en) | 1969-12-23 | 1969-12-23 | Method for fire-retardant impregnation of wood, and plants for carrying out the method. |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1338080A true GB1338080A (en) | 1973-11-21 |
Family
ID=8149109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6057970A Expired GB1338080A (en) | 1969-12-23 | 1970-12-21 | Methods for the fire-inhibiting impregnation of wood and |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5116484B1 (en) |
CA (1) | CA980187A (en) |
DE (1) | DE2063171B2 (en) |
DK (1) | DK129634B (en) |
FR (1) | FR2074161A5 (en) |
GB (1) | GB1338080A (en) |
SE (1) | SE387568B (en) |
ZA (1) | ZA708324B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
1969
- 1969-12-23 DK DK683669AA patent/DK129634B/en unknown
-
1970
- 1970-12-09 ZA ZA708324A patent/ZA708324B/en unknown
- 1970-12-17 CA CA100,949A patent/CA980187A/en not_active Expired
- 1970-12-17 SE SE7017138A patent/SE387568B/en unknown
- 1970-12-21 GB GB6057970A patent/GB1338080A/en not_active Expired
- 1970-12-22 DE DE2063171A patent/DE2063171B2/en not_active Withdrawn
- 1970-12-22 FR FR7046240A patent/FR2074161A5/fr not_active Expired
- 1970-12-22 JP JP45115241A patent/JPS5116484B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2063171A1 (en) | 1971-07-01 |
SE387568B (en) | 1976-09-13 |
CA980187A (en) | 1975-12-23 |
DK129634C (en) | 1975-04-28 |
FR2074161A5 (en) | 1971-10-01 |
DE2063171B2 (en) | 1980-01-03 |
ZA708324B (en) | 1971-09-29 |
DK129634B (en) | 1974-11-04 |
JPS5116484B1 (en) | 1976-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |