GB481324A - Improved manufacture of cork composition - Google Patents
Improved manufacture of cork compositionInfo
- Publication number
- GB481324A GB481324A GB294437A GB294437A GB481324A GB 481324 A GB481324 A GB 481324A GB 294437 A GB294437 A GB 294437A GB 294437 A GB294437 A GB 294437A GB 481324 A GB481324 A GB 481324A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binder
- cork
- oil
- granules
- glycerine
- 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
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A cork composition having substantially the unimpaired properties of cork itself comprises cork granules and a binder of bodied tung oil and natural or synthetic resin, the quantity of the binder being only that sufficient to cement the granules together. The binder preferably contains also a solvent and cork plasticizer such as glycerine. The tung oil is bodied by heating in an open kettle to a temperature of 450-500 DEG F. for about an hour when the oil has such a consistency that when a rod is dipped therein and raised a string of oil is formed. In an example, the treated oil is mixed with glycerine, cooled to about 180-200 DEG F. and mixed with a phenol formaldehyde resin prepared from 16 lb. of phenol to 1 lb. of formaldehyde solution (37-40 per cent) and about 2 3/4 oz. of oxalic acid. Just before mixing the binder with the cork granules a hardener, e.g. hexamethylenetetramine, is added. Suitable quantities used are 150 parts of resin, 50 parts of bodied tung oil glycerine solution and 5 per cent or less of hardener. About three pounds of the binder are mixed with 12-13 lb. of cork granules, forming a mass of coated granules which may be moulded at a temperature of about 290-300 DEG F. for about two hours. The coated granules are non-tacky and may be stored before being moulded. Glycol or sulphonated castor oil may be used instead of glycerine whenever taste and odour imparting properties are not important. Other synthetic resins such as urea formaldehyde resin, alkyd resins or cumarone resins may be used, or natural resins such as dammar and copal. A small quantity of wax may be added to the binder.ALSO:A cork composition having substantially the unimpaired properties of cork itself comprises cork granules and a binder of bodied tung oil and natural or synthetic resin, the quantity of the binder being only that sufficient to cement the granules together. The binder preferably contains also a solvent and cork plasticizer such as glycerine. The tung oil is bodied by heating in an open kettle to a temperature of 450-500 DEG F. for about an hour when the oil has such a consistency that when a rod is dipped therein and raised a string of oil is formed. In an example, the treated oil is mixed with glycerine, cooled to about 180-200 DEG F. and mixed with a phenol formaldehyde resin prepared from 16 lb. of phenol to 1 lb. of formaldehyde solution (37-40 per cent) and about 2 3/4 oz. of oxalic acid. Just before mixing the binder with the cork granules a hardener, e.g. hexamethylenetetramine is added. Suitable quantities used are 150 parts of resin, 50 parts of bodied tung oil glycerine solution and 5 per cent or less of hardener. About three pounds of the binder are mixed with 12-13 lb. of cork granules, forming a mass of coated granules which may be moulded at a temperature of about 290-300 DEG F. for about two hours. The coated granules are non-tacky and may be stored before being moulded. Glycol or sulphonated castor oil may be used instead of glycerine whenever taste and odour imparting properties are not important. Other synthetic resins such as urea formaldehyde resin, alkyd resins or p cumarone resins may be used, or natural resins such as dammar and copal. A small quantity of wax may be added to the binder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB294437A GB481324A (en) | 1937-02-01 | 1937-02-01 | Improved manufacture of cork composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB294437A GB481324A (en) | 1937-02-01 | 1937-02-01 | Improved manufacture of cork composition |
Publications (1)
Publication Number | Publication Date |
---|---|
GB481324A true GB481324A (en) | 1938-03-09 |
Family
ID=9748993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB294437A Expired GB481324A (en) | 1937-02-01 | 1937-02-01 | Improved manufacture of cork composition |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB481324A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE921776C (en) * | 1943-07-02 | 1954-12-30 | Bakelite Ges M B H | Process for the production of a resinous, thermosetting condensation product from sulphite waste liquor |
-
1937
- 1937-02-01 GB GB294437A patent/GB481324A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE921776C (en) * | 1943-07-02 | 1954-12-30 | Bakelite Ges M B H | Process for the production of a resinous, thermosetting condensation product from sulphite waste liquor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB370440A (en) | Improvements in and relating to resinous condensation products | |
GB481324A (en) | Improved manufacture of cork composition | |
GB305237A (en) | ||
US1959164A (en) | Candle | |
GB482539A (en) | Improved manufacture of cork composition | |
US2185118A (en) | Substantially nongelling zein coating composition | |
US2017877A (en) | Phenolic resinous products and compositions containing them | |
US2162331A (en) | Quick-setting printing ink and process of making same | |
US1952060A (en) | Resin | |
US2185122A (en) | Zein containing coating compositions | |
US1967232A (en) | Resinous and balsamic complexes | |
US2129749A (en) | Molding composition | |
GB400937A (en) | Improvements in compositions of matter containing synthetic resins | |
US1736757A (en) | Reaction products of a natural resin-phenolic resinous material and method of making same | |
US2015661A (en) | Preparation of synthetic resins | |
GB514541A (en) | Improved manufacture of cork compositions | |
GB571786A (en) | Improvements relating to mouldable compositions and to methods of making the same | |
DE551804C (en) | Process for the production of non-skid rubber mixtures for tire purposes o. | |
GB318883A (en) | Improved process for producing shaped articles from urea or its derivatives and solid polymerised formaldehyde | |
GB347737A (en) | Improvements in phenolic resinous products and compositions containing them | |
GB344405A (en) | ||
GB266363A (en) | Improvements in priming wood and other supports | |
GB572765A (en) | Improvements in and relating to solid aldehyde fuel and processes for the manufacture thereof | |
GB391798A (en) | Improvements in pencil leads | |
GB543096A (en) | Improved resinous condensation products and methods of producing same |