GB1064091A - Improvements in or relating to fire-resistant fibre board - Google Patents
Improvements in or relating to fire-resistant fibre boardInfo
- Publication number
- GB1064091A GB1064091A GB4933663A GB4933663A GB1064091A GB 1064091 A GB1064091 A GB 1064091A GB 4933663 A GB4933663 A GB 4933663A GB 4933663 A GB4933663 A GB 4933663A GB 1064091 A GB1064091 A GB 1064091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mineral
- fibres
- layer
- starch
- wood
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/16—Special fibreboard
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Paper (AREA)
Abstract
Fire-resistant fibreboard is made by preparing a wet layer of wood fibres, applying a suspension of mineral fibres upon the woodfibre layer to form a layer of mineral fibres, and dewatering the composite wet mat through the wood-fibre layer. The fibres of the two kinds are used in such quantity that the thicknesses in the final dried board of the layers of mineral and wood fibres are at least 2.5 and 6 mm. respectively. The wet mat may be pressed at room or elevated temperature, and may then be finally dried in a fan drier or in a heated press. The mineral-fibre layer may be sized, e.g. with starch or a melamine-formaldehyde or urea-formaldehyde resin, or a sizing agent in the form of starch, carboxy-methylcellulose or an emulsion of an alkyd or vinyl resin or acrylate may be sprayed on to the web before or after the press section. Mineral-fibre layers may be applied on both sides of the wood-fibre layer. The mineral fibres may be of mineral wool, asbestos, slag wool or glass wool. The board of the invention will damp sound transmission in buildings. The starch solution used for sizing may contain an emulsion of tall oil. The tall oil is emulsified in water by adding concentrated ammonia and stirring. This emulsion is then added to a solution of starch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1373962 | 1962-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1064091A true GB1064091A (en) | 1967-04-05 |
Family
ID=20297905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4933663A Expired GB1064091A (en) | 1962-12-19 | 1963-12-13 | Improvements in or relating to fire-resistant fibre board |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1436942A1 (en) |
| GB (1) | GB1064091A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2034114A1 (en) * | 1969-02-06 | 1970-12-11 | Bowaters Irish Board Mil | Fire-resistant fibreboard of asbestos and - wood fibre |
-
1963
- 1963-12-13 GB GB4933663A patent/GB1064091A/en not_active Expired
- 1963-12-14 DE DE19631436942 patent/DE1436942A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2034114A1 (en) * | 1969-02-06 | 1970-12-11 | Bowaters Irish Board Mil | Fire-resistant fibreboard of asbestos and - wood fibre |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1436942A1 (en) | 1970-05-21 |
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