RO84974B - Mica paper and process for making the same - Google Patents
Mica paper and process for making the sameInfo
- Publication number
- RO84974B RO84974B RO84616A RO8461676A RO84974B RO 84974 B RO84974 B RO 84974B RO 84616 A RO84616 A RO 84616A RO 8461676 A RO8461676 A RO 8461676A RO 84974 B RO84974 B RO 84974B
- Authority
- RO
- Romania
- Prior art keywords
- suspension
- small
- making
- mixture
- weight
- Prior art date
Links
Classifications
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/44—Flakes, e.g. mica, vermiculite
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Inorganic Insulating Materials (AREA)
- Organic Insulating Materials (AREA)
Abstract
Hîrtia de mica conform inventiei, este utilizata ca material electroizolant si este alcatuita dintr-un amestec de mica si fibre de celuloza într-o forma de suspensie într-un raport de 90-50; 10-50 în greutate, în special 20...30% în greutate fibre de celuloza, suspensie ce se introduce apoi într-o masina de sita, pentru a forma un produs în forma de foaie. Procedeul de realizare a hîrtiei conform inventiei consta în calcinarea, timp de 30 min, la o temperatura de 78 degree C, a deseurilor de mica, se toarna în apa si se supune unui procedeu de dezagregare pîna la o granulatie de 100 pîna la 1000 niu, separat se prepara un amestec de apa si celuloza sulfat cu un grad de macinare de 44 dupa Schopper-Riegler, amestec ce se adauga partivulelor de mica pentru a de aobtine o suspensie cu un continut de 1% substanta solida si un raport în greutate între mica si celuloza de 70-30, suspensia astfel obtinuta se introduce într-o masina de sita, pentru obtinerea unui produs în forma de foaie, prin procedeul în sine cunoscut de fabricare a hîrtiei.The small paper according to the invention is used as an insulating material and consists of a mixture of small and cellulose fibers in a suspension form in a ratio of 90-50; 10-50% by weight, especially 20 to 30% by weight of cellulose fibers, suspension which is then introduced into a screening machine to form a sheet-like product. The process of making the paper according to the invention consists in calcining for 30 minutes at a temperature of 78 ° C of the small waste, pouring it in water and subjecting it to a disintegration process up to a granulation of 100 to 1000 nm , a mixture of water and sulphate pulp with a degree of grinding of 44 after Schopper-Riegler was prepared separately, a mixture which was added to the small particles to obtain a suspension with a solids content of 1% and a weight ratio between and the 70-30 cellulose, the suspension thus obtained is introduced into a sieve machine to obtain a sheet-like product by the known paper making process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH99275A CH589174A5 (en) | 1975-01-28 | 1975-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO84974A RO84974A (en) | 1984-08-17 |
| RO84974B true RO84974B (en) | 1984-09-30 |
Family
ID=4199932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO84616A RO84974B (en) | 1975-01-28 | 1976-01-26 | Mica paper and process for making the same |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS51100300A (en) |
| BE (1) | BE837929A (en) |
| CH (1) | CH589174A5 (en) |
| CS (1) | CS183835B2 (en) |
| FR (1) | FR2299456A1 (en) |
| IN (1) | IN142410B (en) |
| PL (1) | PL112572B1 (en) |
| RO (1) | RO84974B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR829889A (en) * | 1936-11-26 | 1938-07-08 | Siemens Ag | Process for manufacturing a paper intended in particular for the insulation of electric cables |
| SU108343A1 (en) * | 1954-04-17 | 1956-11-30 | К.А. Андрианов | The method of obtaining electrically insulating mlyudinitovyh papers |
| FR1199942A (en) * | 1970-10-21 | 1959-12-17 | Escher Wyss Soc | Device for sealing a machine in which a motive fluid which is susceptible to radioactive contamination circulates |
-
1975
- 1975-01-28 CH CH99275A patent/CH589174A5/xx not_active IP Right Cessation
-
1976
- 1976-01-26 RO RO84616A patent/RO84974B/en unknown
- 1976-01-27 PL PL18683976A patent/PL112572B1/en unknown
- 1976-01-27 BE BE163817A patent/BE837929A/en unknown
- 1976-01-27 FR FR7602096A patent/FR2299456A1/en active Granted
- 1976-01-27 IN IN140/CAL/76A patent/IN142410B/en unknown
- 1976-01-28 CS CS54976A patent/CS183835B2/en unknown
- 1976-01-28 JP JP828076A patent/JPS51100300A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2299456A1 (en) | 1976-08-27 |
| RO84974A (en) | 1984-08-17 |
| CS183835B2 (en) | 1978-07-31 |
| IN142410B (en) | 1977-07-02 |
| CH589174A5 (en) | 1977-06-30 |
| FR2299456B1 (en) | 1979-08-24 |
| BE837929A (en) | 1976-07-27 |
| JPS51100300A (en) | 1976-09-04 |
| PL112572B1 (en) | 1980-10-31 |
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