GB963929A - Improvements in or relating to acetylation of wood - Google Patents
Improvements in or relating to acetylation of woodInfo
- Publication number
- GB963929A GB963929A GB3997362A GB3997362A GB963929A GB 963929 A GB963929 A GB 963929A GB 3997362 A GB3997362 A GB 3997362A GB 3997362 A GB3997362 A GB 3997362A GB 963929 A GB963929 A GB 963929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wood
- acetic anhydride
- solvent
- acetylation
- treated
- 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
- B27K3/34—Organic impregnating agents
- B27K3/36—Aliphatic compounds
-
- 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
- B27K3/0271—Vapour phase 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
- B27K3/0278—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
- B27K3/08—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
- B27K3/34—Organic impregnating agents
- B27K3/346—Grafting onto wood fibres
-
- 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
- B27K3/34—Organic impregnating agents
- B27K3/38—Aromatic compounds
-
- 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
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Wood is acetylated to proof it against fungi and termites by impregnation at 100-130 DEG C. and 150-200 p.s.i.g. with a mixture of acetic anhydride and an aromatic or chlorinated hydrocarbon solvent which has a b.p. of at least 80 DEG C., is miscible with and inert to acetic anhydride, is substantially immiscible with water, and does not swell wood, the weight gain on acetylation being at least 18%. The wood may be impregnated before impregnation. The wood may be treated with solvent vapour before and after acetylation to remove moisture and acetic anhydride respectively. Acetic anhydride and solvent may be recovered and returned to the process. The treated wood may be kiln dried at 100 DEG C. The solvent may be benzene, isopropyl benzene, toluene, zylene, mono- or di-chlorobenzene, ethylene dichloride, trichloroethylene, tetrachloroethylene, or carbon tetrachloride. Various species of wood are specified.ALSO:Wood is acetylated by impregnation at 100-130 DEG C. and 150-200 psig with a mixture of acetic anhydride and an aromatic or chlorinated hydrocarbon solvent which has a bp of at least 80 DEG C., is miscible with and inert to acetic anhydride, is substantially immiscible with water, and does not swell wood, the weight gain on acetylation being at least 18%. The wood may be evacuated before impregnation. The wood may be treated with solvent vapour before and after acetylation to remove moisture and acetic anhydride respectively. Acetic anhydride and solvent may be recovered and returned to the process. The treated wood may be kiln dried at 100 DEG C. The solvent may be benzene, iso-propyl benzene, toluene, xylene, mono- or dichlorobenzene, ethylene dichloride, trichloroethylene, tetrachloroethylene, or carbon tetrachloride. Various species of wood are specified.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3997362A GB963929A (en) | 1962-10-22 | 1962-10-22 | Improvements in or relating to acetylation of wood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3997362A GB963929A (en) | 1962-10-22 | 1962-10-22 | Improvements in or relating to acetylation of wood |
Publications (1)
Publication Number | Publication Date |
---|---|
GB963929A true GB963929A (en) | 1964-07-15 |
Family
ID=10412508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3997362A Expired GB963929A (en) | 1962-10-22 | 1962-10-22 | Improvements in or relating to acetylation of wood |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB963929A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2814107A1 (en) * | 2000-09-21 | 2002-03-22 | Commissariat Energie Atomique | Chemical treatment of substrate having reactive functions, e.g. for hydrophobizing wood, comprises contacting moist substrate with a gaseous organic reagent |
US20140234647A1 (en) * | 2013-02-19 | 2014-08-21 | Brian Matthew Sanderson | Composition and Method of Manufacture of Hardened Wood |
US8906466B2 (en) | 2009-06-25 | 2014-12-09 | Eastman Chemical Company | Esterified lignocellulosic materials and methods for making them |
-
1962
- 1962-10-22 GB GB3997362A patent/GB963929A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2814107A1 (en) * | 2000-09-21 | 2002-03-22 | Commissariat Energie Atomique | Chemical treatment of substrate having reactive functions, e.g. for hydrophobizing wood, comprises contacting moist substrate with a gaseous organic reagent |
WO2002024420A1 (en) * | 2000-09-21 | 2002-03-28 | Atelier Regional De Conservation Arc-Nucleart | Method for chemical treatment of a surface |
US8906466B2 (en) | 2009-06-25 | 2014-12-09 | Eastman Chemical Company | Esterified lignocellulosic materials and methods for making them |
US20140234647A1 (en) * | 2013-02-19 | 2014-08-21 | Brian Matthew Sanderson | Composition and Method of Manufacture of Hardened Wood |
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