GB425389A - Improved process of impregnating layers of fibrous material with synthetic artificial resin - Google Patents
Improved process of impregnating layers of fibrous material with synthetic artificial resinInfo
- Publication number
- GB425389A GB425389A GB1447/34A GB144734A GB425389A GB 425389 A GB425389 A GB 425389A GB 1447/34 A GB1447/34 A GB 1447/34A GB 144734 A GB144734 A GB 144734A GB 425389 A GB425389 A GB 425389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paper
- drying
- heating
- condensation
- substances
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
- H01B3/485—Other fibrous materials fabric
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/47—Condensation polymers of aldehydes or ketones
- D21H17/48—Condensation polymers of aldehydes or ketones with phenols
-
- 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
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A sheet of fibrous material such as paper or fabric of considerable length is impregnated with a preferably aqueous solution of the initial elementary substances of a synthetic resin, whereupon, prior to drying, the sheet is wound into a roll in order to avoid vaporization of volatile initial substances during the condensation which is effected to such an extent that in the subsequent drying and final heating, vaporizable initial substances are no longer present. Condensation may be effected at room temperature or by heating. suitable synthetic resins are condensation products of formaldehyde or furfural with phenol, cresol, urea or thiourea. Examples describe impregnating paper with a solution of cresol, formalin and hexamethylenetetramine, winding on a cylinder to form a roll, heating at 75 DEG C. for 24 hours to effect the condensation and drying by leading the length of paper through a heated chamber or in vacuo at a low p temperature. Tubes may be made by winding the dried intermediate product on a core and heating, if desired, under pressure. Compound sheets may be formed by compressing a plurality of layers at high temperature and pressure. Moulded articles may be made by dividing the dried intermediate product into small pieces and forming by heat and pressure. The Specification as open to inspection under Sect. 91 describes also drying an impregnated breadth of paper by leading it through a closed furnace which fits the paper so exactly that no volatile substances escape. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE425389X | 1933-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB425389A true GB425389A (en) | 1935-03-13 |
Family
ID=6477044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1447/34A Expired GB425389A (en) | 1933-01-23 | 1934-01-15 | Improved process of impregnating layers of fibrous material with synthetic artificial resin |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB425389A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465299A (en) * | 1945-01-01 | 1949-03-22 | Westinghouse Electric Corp | Laminated product embodying a low odor phenol-formaldehyde resin |
| CN111823650A (en) * | 2019-04-15 | 2020-10-27 | 无锡市百雄流体科技有限公司 | Forming process for compounding plant fiber paper into silencing pipe |
-
1934
- 1934-01-15 GB GB1447/34A patent/GB425389A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465299A (en) * | 1945-01-01 | 1949-03-22 | Westinghouse Electric Corp | Laminated product embodying a low odor phenol-formaldehyde resin |
| CN111823650A (en) * | 2019-04-15 | 2020-10-27 | 无锡市百雄流体科技有限公司 | Forming process for compounding plant fiber paper into silencing pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2590850A (en) | Method of treating sheet material coated with gelatine | |
| GB425389A (en) | Improved process of impregnating layers of fibrous material with synthetic artificial resin | |
| US1987694A (en) | Method of producing laminated material | |
| US1595236A (en) | Method of treating material in a vacuum and apparatus | |
| GB452924A (en) | Improvements in and relating to the manufacture of artificial threads, filaments and the like | |
| GB458877A (en) | Improvements in the treatment of fabrics for the production of non-crease effects | |
| DE624806C (en) | Process for the production of hollow bodies from pulp | |
| US2135349A (en) | Impregnation of materials | |
| US1598980A (en) | Method of and apparatus for drying moving material | |
| DE880542C (en) | Process for the production of molded articles from fiber suspensions | |
| US1728567A (en) | Belting of woven fibrous material | |
| US2495234A (en) | Method of treating cellulosic materials with trimethylolphenol | |
| SU31584A1 (en) | The method of manufacturing cement, plaster and cement-plaster models and forms for the manufacture of | |
| US1770663A (en) | Thermal and electrical insulator and process of manufacture thereof | |
| US1836174A (en) | Brake covering and the like and process of manufacturing the same | |
| DE967962C (en) | Process for the production of pressed laminated bodies | |
| US2042825A (en) | Process of coloring wood veneers and the like | |
| US1709266A (en) | Rubber-spreading machine | |
| SU60882A1 (en) | The method of preparation of green tea | |
| SU46978A1 (en) | Method of making cellulose acetate sheet material | |
| US532468A (en) | Arthur d | |
| DE583837C (en) | Method for drying rayon bobbins | |
| GB458238A (en) | Improvements in or relating to the production of artificial sausage casings, more particularly round sausage casings | |
| GB428904A (en) | Process for the manufacture of artificial yarns | |
| SU56414A1 (en) | The method of preparation of layered plastics |