GB190801922A - Impregnation of Wood and other Fibrous or Cellular Materials. - Google Patents
Impregnation of Wood and other Fibrous or Cellular Materials.Info
- Publication number
- GB190801922A GB190801922A GB190801922DA GB190801922A GB 190801922 A GB190801922 A GB 190801922A GB 190801922D A GB190801922D A GB 190801922DA GB 190801922 A GB190801922 A GB 190801922A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impregnation
- wood
- mixture
- condensation
- fibrous
- 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
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
1922. Baekeland, L. H. Jan. 28. Wood substitutes; wood, treating for preserving &c.-Wood, sawdust, wood pulp, cork, cotton, asbestos, glass wool, and other organic and inorganic fibrous or cellular materials are impregnated with the condensation products of phenols and formaldehyde by impregnating with a liquid containing phenol or one of its homologues or a mixture, and aqueous formaldehyde, and heating the impregnated material to a temperature of 120-150‹ C. to bring about the condensation. Inorganic or organic acids or salts, for example zinc chloride or basic compounds may be added before or after the impregnation to act as condensing-agents. Some of the water may be removed. from the mixture before impregnation by shaking up with sodium or calcium chloride or other salt and separating the lower aqueous layer. The mixture may be heated to bring about a partial condensation before the impregnation, and the water which is formed may be separated. The partially condensed mixture may be thinned with solvents. Colouring or aromatic substances may be added. The condensation may be carried out under pressure, and in moulds, or the fibrous or cellular substances may be moulded before the impregnation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190801922T | 1908-01-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190801922A true GB190801922A (en) | 1908-08-13 |
Family
ID=32207203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190801922D Expired GB190801922A (en) | 1908-01-28 | 1908-01-28 | Impregnation of Wood and other Fibrous or Cellular Materials. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190801922A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2504744A (en) * | 1944-06-03 | 1950-04-18 | Gen Electric | Glass fiber sheet material |
DE764498C (en) * | 1935-07-03 | 1954-05-31 | Siemens Schuckertwerke A G | Molding compound for the production of homogeneous insulating parts in electrical engineering or the like. |
DE966167C (en) * | 1940-11-27 | 1957-07-11 | Algemeene Kunstverzel Mij N V | Process for the production of a coating composition which dries at room temperature |
EP0191196A1 (en) * | 1985-02-13 | 1986-08-20 | Rütgerswerke Aktiengesellschaft | Process for improving wood and use of the improved wood |
-
1908
- 1908-01-28 GB GB190801922D patent/GB190801922A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764498C (en) * | 1935-07-03 | 1954-05-31 | Siemens Schuckertwerke A G | Molding compound for the production of homogeneous insulating parts in electrical engineering or the like. |
DE966167C (en) * | 1940-11-27 | 1957-07-11 | Algemeene Kunstverzel Mij N V | Process for the production of a coating composition which dries at room temperature |
US2504744A (en) * | 1944-06-03 | 1950-04-18 | Gen Electric | Glass fiber sheet material |
EP0191196A1 (en) * | 1985-02-13 | 1986-08-20 | Rütgerswerke Aktiengesellschaft | Process for improving wood and use of the improved wood |
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