GB814584A - Stabilized wood and a method for its production - Google Patents
Stabilized wood and a method for its productionInfo
- Publication number
- GB814584A GB814584A GB2596857A GB2596857A GB814584A GB 814584 A GB814584 A GB 814584A GB 2596857 A GB2596857 A GB 2596857A GB 2596857 A GB2596857 A GB 2596857A GB 814584 A GB814584 A GB 814584A
- Authority
- GB
- United Kingdom
- Prior art keywords
- curing
- wood
- swelling
- treating
- hot
- 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
- 239000002023 wood Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 4
- 230000002522 swelling Effects 0.000 abstract 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000005470 impregnation Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 125000005632 phthalaldehydic acid Chemical group 0.000 abstract 2
- ARXJGSRGQADJSQ-UHFFFAOYSA-N propylene glycol methyl ether Substances COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- CVICEEPAFUYBJG-UHFFFAOYSA-N 5-chloro-2,2-difluoro-1,3-benzodioxole Chemical group C1=C(Cl)C=C2OC(F)(F)OC2=C1 CVICEEPAFUYBJG-UHFFFAOYSA-N 0.000 abstract 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 230000002378 acidificating Effects 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- YVUBWJOBCFNMES-UHFFFAOYSA-N formamide;pyridine Chemical compound NC=O.C1=CC=NC=C1 YVUBWJOBCFNMES-UHFFFAOYSA-N 0.000 abstract 1
- 238000002386 leaching Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 235000010269 sulphur dioxide Nutrition 0.000 abstract 1
- 239000004291 sulphur dioxide Substances 0.000 abstract 1
- 239000010876 untreated wood Substances 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
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
- B27K3/38—Aromatic compounds
- B27K3/40—Aromatic compounds halogenated
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
814,584. Treating wood &c. DOW CHEMICAL CO. Aug. 16, 1957, No. 25968/57. Class 140. Wood or other natural or artificially formed lignocellulosic material is dimensionally stabilized by swelling and impregnation with a solution of phthalaldehydic acid or a derivative thereof substituted in the aryl group with at least one chlorine or lower alkyl group, and subsequently curing by heating in an oven or with hot vapours to between 95‹ and 160‹ C. to produce a reaction product between the acid or derivative and the lignocellulose, which remains in the material. The solution used may be of about 20-35 per cent strength and may be in water or an aqueous mixture such as a 50: 50 mixture with propylene glycol methyl ether in an organic solvent such as pyridine or dimethyl formamide which has a swelling action, or in a solvent having little swelling action such as methyl isobutyl ketone, followed by curing treatment with the hot vapour of a swelling liquid, e.g. steam. Impregnation may be effected at normal, reduced, or increased pressure, and at temperatures between 15‹ and 85‹ C. When an aqueous solution is used free water may be removed by heating in a high humidity cabinet or treating with hot inert vapours such as those of xylene or toluene, which also effect curing. The material may be pretreated with an acidic material such as sulphur dioxide which is stated to act as a catalyst and substantially reduce the curing time. Suitable derivatives of phthalaldehydic acid referred to are the 5-chloro and the 5- tertiary butyl compounds. Excess of the treating compounds are removed after curing by leaching. The Specification gives figures showing reduced shrinkage on drying of treated as compared with untreated wood.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB814584A true GB814584A (en) | 1959-06-10 |
Family
ID=1739689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2596857A Expired GB814584A (en) | 1957-08-16 | Stabilized wood and a method for its production |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB814584A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011002296A1 (en) | 2009-07-03 | 2011-01-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for treating lignocellulosic parts |
| WO2011085453A1 (en) * | 2010-01-18 | 2011-07-21 | Arch Wood Protection Pty Ltd | Reduced drying carrier formulation |
| AU2016219540B2 (en) * | 2011-01-18 | 2017-08-24 | Arch Wood Protection Pty Ltd | Reduced drying carrier formulation |
-
1957
- 1957-08-16 GB GB2596857A patent/GB814584A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011002296A1 (en) | 2009-07-03 | 2011-01-06 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Method for treating lignocellulosic parts |
| WO2011085453A1 (en) * | 2010-01-18 | 2011-07-21 | Arch Wood Protection Pty Ltd | Reduced drying carrier formulation |
| US9045681B2 (en) | 2010-01-18 | 2015-06-02 | Arch Wood Protection Pty Ltd | Reduced drying carrier formulation |
| AU2016219540B2 (en) * | 2011-01-18 | 2017-08-24 | Arch Wood Protection Pty Ltd | Reduced drying carrier formulation |
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