GB657812A - Improvements in process for manufacture of hard wall board from sawdust and other cellulosic waste - Google Patents
Improvements in process for manufacture of hard wall board from sawdust and other cellulosic wasteInfo
- Publication number
- GB657812A GB657812A GB3250646A GB3250646A GB657812A GB 657812 A GB657812 A GB 657812A GB 3250646 A GB3250646 A GB 3250646A GB 3250646 A GB3250646 A GB 3250646A GB 657812 A GB657812 A GB 657812A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- sawdust
- manufacture
- wall board
- hard wall
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
A hard water-resistant wood substitute is obtained by mixing lignocellulose particles with a phenol or a substance containing a phenol, in an amount of 2-10 per cent of a phenol and then pressing the mixture at elevated temperature and at a pressure of 150 to 1000 lbs. per square inch. The cellulosic material may be sawdust or chips less than 1/16 inch thick of raw pine or douglas fir. The product may be modified by adding mineral oil, petrolatum, lignin from paper and from the hydrolysis of cellulose, including indulin, tall oil, soap, and the stearates of zinc, magnesium, calcium and aluminium. The preferred binder is cresylic acid, and a temperature from 245-260 DEG C. for 7-20 minutes is preferably employed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3250646A GB657812A (en) | 1946-11-01 | 1946-11-01 | Improvements in process for manufacture of hard wall board from sawdust and other cellulosic waste |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3250646A GB657812A (en) | 1946-11-01 | 1946-11-01 | Improvements in process for manufacture of hard wall board from sawdust and other cellulosic waste |
Publications (1)
Publication Number | Publication Date |
---|---|
GB657812A true GB657812A (en) | 1951-09-26 |
Family
ID=10339641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3250646A Expired GB657812A (en) | 1946-11-01 | 1946-11-01 | Improvements in process for manufacture of hard wall board from sawdust and other cellulosic waste |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB657812A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2864715A (en) * | 1954-07-15 | 1958-12-16 | Carr Adams & Collier Company | Methods of making a lignocellulose product and products resulting therefrom |
GB2145421A (en) * | 1983-08-26 | 1985-03-27 | Seang Ha Park | Manufacture of a building element |
-
1946
- 1946-11-01 GB GB3250646A patent/GB657812A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2864715A (en) * | 1954-07-15 | 1958-12-16 | Carr Adams & Collier Company | Methods of making a lignocellulose product and products resulting therefrom |
GB2145421A (en) * | 1983-08-26 | 1985-03-27 | Seang Ha Park | Manufacture of a building element |
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