DE201915C - - Google Patents
Info
- Publication number
- DE201915C DE201915C DENDAT201915D DE201915DA DE201915C DE 201915 C DE201915 C DE 201915C DE NDAT201915 D DENDAT201915 D DE NDAT201915D DE 201915D A DE201915D A DE 201915DA DE 201915 C DE201915 C DE 201915C
- Authority
- DE
- Germany
- Prior art keywords
- acid
- dry
- bath
- cellulose
- solution
- 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.)
- Active
Links
- 239000002253 acid Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- DBNPDRYVYQWGFW-UHFFFAOYSA-N N.[Cu]=O Chemical compound N.[Cu]=O DBNPDRYVYQWGFW-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000001112 coagulant Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical compound N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 210000003491 Skin Anatomy 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
-M 201915 KLASSE 39 ö. -M 201915 CLASS 39 ö.
Bei der Herstellung von Blättern, Bändern usw. aus einer Lösung von Zellulose in Kupferammoniakflüssigkeit wurde bisher so verfahren, daß man diese Lösung unter Druck aus feinen öffnungen, Spalten usw. unmittelbar in eine koagulierend wirkende Flüssigkeit, beispielsweise in Schwefelsäure oder Essigsäure, i. austreten ließ. Dieses bekannte Verfahren ergibt Körper. von geringer Festigkeit sowohlWhen making sheets, ribbons, etc. from a solution of cellulose in Copper ammonia liquid has hitherto been used in such a way that this solution is pressurized from fine openings, crevices etc. directly into a coagulating liquid, for example in sulfuric acid or acetic acid, i. let out. This known method gives body. of low strength both
ίο im frischen als auch im vollkommen erhärteten und trockenen Zustande.ίο in the fresh as well as in the completely hardened and dry conditions.
Den Gegenstand vorliegender Erfindung bildet demgegenüber ein Verfahren, welches darin besteht, daß man die plastische Masse nach ihrer Formgebung, ehe man sie in das koagulierende Bad bringt, vollkommen austrocknen läßt, wobei durch den Einfluß der Luft ein Gerinnen unter Erzielung einer bedeutenden Festigkeit stattfindet, und daßIn contrast, the subject matter of the present invention is a method which consists in the plastic mass being shaped according to its shape before it is put into the coagulating bath brings, lets it dry out completely, being by the influence of the Air coagulation takes place to achieve significant strength, and that
ao man dann die getrocknete Masse bzw. die daraus hergestellten Körper in ein Säurebad, beispielsweise in ein solches von verdünnter Salzsäure, bringt, in welchem sich das in der Masse befindliche Kupfer leicht und vollkommen löst, worauf man durch Waschen in Wasser die Säure entfernt.ao you then put the dried mass or the body made from it in an acid bath, for example in one of dilute hydrochloric acid, in which the in the The copper in the bulk dissolves easily and completely, which is then followed by washing in Water removes the acid.
Die praktische Ausführung des Verfahrens vollzieht sich folgendermaßen:The practical implementation of the procedure takes place as follows:
Zur Erzeugung von Häutchen beliebiger Gestalt wird die kupferammoniakalische ZeI-luloselösung auf der Oberfläche eines entsprechend gestalteten festen Körpers ausgebreitet, d. h. der feste Körper damit überzogen. Den Überzug läßt man auf dem Körper trocknen, bringt ihn dann in getrocknetem Zustande in das Säurebad und später in das Wasserbad. Nach dem Trocknen kann der Überzug als fertiger Körper von dem Modellkörper abgelöst werden. Die so hergestellten Häutchen sind außerordentlich zart, dabei von großer Festigkeit, fast unentflammbar, durchscheinend und zur Herstellung der verschiedensten Dinge geeignet.The copper ammonia cellulose solution is used to produce skins of any shape spread on the surface of a suitably shaped solid body, d. H. the solid body covered with it. The The coating is left to dry on the body and then brought into the dry state the acid bath and later in the water bath. After drying, the coating can be used as a finished body can be detached from the model body. The membranes made in this way are extraordinarily delicate, at the same time of great strength, almost non-flammable, translucent and suitable for making all kinds of things.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE201915C true DE201915C (en) |
Family
ID=464438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT201915D Active DE201915C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE201915C (en) |
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0
- DE DENDAT201915D patent/DE201915C/de active Active
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