GB1124392A - Process of impregnating capillary-containing materials such as wood under pressure ina closed vessel - Google Patents
Process of impregnating capillary-containing materials such as wood under pressure ina closed vesselInfo
- Publication number
- GB1124392A GB1124392A GB12800/66A GB1280066A GB1124392A GB 1124392 A GB1124392 A GB 1124392A GB 12800/66 A GB12800/66 A GB 12800/66A GB 1280066 A GB1280066 A GB 1280066A GB 1124392 A GB1124392 A GB 1124392A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vapour
- sodium fluoride
- wood
- gas
- liquid
- 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
- B27K3/08—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
- B27K3/02—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
- B27K3/34—Organic impregnating agents
- B27K3/44—Tar; Mineral oil
- B27K3/48—Mineral oil
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/4935—Impregnated naturally solid product [e.g., leather, stone, etc.]
- Y10T428/662—Wood timber product [e.g., piling, post, veneer, etc.]
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Impregnation of wood with a liquid in a pressure vessel is assisted by evolution of gas or vapour from the liquid during the impregnation at a pressure below that applied to the wood. The gas or vapour may be methylene chloride (from tar oil) or carbon dioxide (from aqueous sodium fluoride), may be introduced into the wood before or with the impregnating liquid, and may be evolved by heating. Carbon dioxide may alternatively be formed in situ by first introducing formic acid vapour and then a solution of alkali metal carbonate or bicarbonate containing sodium fluoride; or by introducing acid and salt solutions, one of which contains sodium fluoride, in either order. The gas or vapour is removed by application of a vacuum.ALSO:Impregnation of wood with a liquid in a pressure vessel is assisted by evolution of gas or vapour from the liquid during the impregnation at a pressure below that applied to the wood. The liquid may be tar oil or a solution of sodium fluoride or a mixture of sodium fluoride, sodium bichromate, and disodium arsenate. The gas or vapour may be methylene chloride (from tar oil) or carbon dioxide (from sodium fluoride solution), may be introduced into the wood before or with the impregnating liquid, and may be evolved by heating. Carbon dioxide may alternatively be formed in situ by first introducing formic acid vapour and then a solution of alkali metal carbonate or bicarbonate containing sodium fluoride; or by introducing acid and salt solutions, one of which contains sodium fluoride, in either order. The gas or vapour is removed by application of a vacuum.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT263665A AT262588B (en) | 1965-03-23 | 1965-03-23 | Process for impregnating capillary materials, e.g. B. wood, in the boiler pressure process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1124392A true GB1124392A (en) | 1968-08-21 |
Family
ID=3537796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12800/66A Expired GB1124392A (en) | 1965-03-23 | 1966-03-23 | Process of impregnating capillary-containing materials such as wood under pressure ina closed vessel |
Country Status (5)
Country | Link |
---|---|
US (1) | US3460979A (en) |
AT (1) | AT262588B (en) |
DE (1) | DE1642197A1 (en) |
FR (1) | FR1475121A (en) |
GB (1) | GB1124392A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1509000A (en) * | 1974-06-28 | 1978-04-26 | Research Corp | Composition and process for treating timber |
US4413024A (en) * | 1980-03-17 | 1983-11-01 | Fuji Kogyo Company, Limited | Method for chemical treatment of woods |
US5797332A (en) * | 1995-08-11 | 1998-08-25 | Callidus Technologies, Inc. | Closed loop gasification drying system |
FR2770171B1 (en) * | 1997-10-27 | 1999-11-19 | Commissariat Energie Atomique | METHOD AND INSTALLATION FOR TREATING POROUS MATERIAL WITH AN IMPREGNATION PRODUCT |
US6471608B1 (en) | 2001-10-11 | 2002-10-29 | Joseph D. Mitchell | Breakage-resistant baseball bat and production thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1937417A (en) * | 1930-08-20 | 1933-11-28 | Warren Brothers Company | Method of impregnating concrete bodies and porous ceramic products with bituminous material |
US1993434A (en) * | 1932-12-13 | 1935-03-05 | Hercules Powder Co Ltd | Method for impregnating carbonaceous material |
US2740728A (en) * | 1954-01-25 | 1956-04-03 | Dow Chemical Co | Production of resin-impregnated porous bodies |
-
1965
- 1965-03-23 AT AT263665A patent/AT262588B/en active
-
1966
- 1966-03-10 FR FR47081A patent/FR1475121A/en not_active Expired
- 1966-03-21 US US542176A patent/US3460979A/en not_active Expired - Lifetime
- 1966-03-22 DE DE19661642197 patent/DE1642197A1/en active Pending
- 1966-03-23 GB GB12800/66A patent/GB1124392A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1475121A (en) | 1967-03-31 |
DE1642197A1 (en) | 1971-07-08 |
AT262588B (en) | 1968-06-25 |
US3460979A (en) | 1969-08-12 |
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