DE265852C - - Google Patents
Info
- Publication number
- DE265852C DE265852C DENDAT265852D DE265852DC DE265852C DE 265852 C DE265852 C DE 265852C DE NDAT265852 D DENDAT265852 D DE NDAT265852D DE 265852D C DE265852D C DE 265852DC DE 265852 C DE265852 C DE 265852C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- solutions
- cellulose formate
- formate
- dissolve
- 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
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-M methanoate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- 150000002989 phenols Chemical class 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002301 Cellulose acetate Polymers 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N Resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- WETWJCDKMRHUPV-UHFFFAOYSA-N Acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 241000490025 Schefflera digitata Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 1
- -1 Zinc chlorine Chemical compound 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003413 degradative Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- AOJFQRQNPXYVLM-UHFFFAOYSA-M pyridine;chloride Chemical compound [Cl-].C1=CC=NC=C1 AOJFQRQNPXYVLM-UHFFFAOYSA-M 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/095—Oxygen containing compounds
-
- 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
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/08—Cellulose derivatives
- C08J2301/10—Esters of organic acids
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Paints Or Removers (AREA)
Description
Die Zahl der für Zelluloseformiat bekannten Lösungsmittel ist sehr beschränkt. Außer Ameisensäure findet man in der Literatur nur verdünnte Schwefelsäure oder Essigsäure, Pyridin und Chlorzinklösung angegeben. Die Säuren können, da sie Maschinenteile usw. leicht angreifen, nur unter besonderen Vorsichtsmaßregeln verwendet werden und haben außerdem den Nachteil, daß sie allmählich zersetzend auf das Zellulosemolekül einwirken. Auch Chlorzink wirkt in ähnlicher Weise abbauend auf den Zelluloseester, so daß die Lösungen nur beschränkte Zeit haltbar sind. Pyridin aber kommt als Lösungsmittel für den vorliegenden Zweck in großem Maßstabe gar nicht in Frage wegen seines hohen Preises, seines widerlichen Geruches und seiner Giftigkeit. The number of solvents known for cellulose formate is very limited. Except Formic acid can only be found in the literature in dilute sulfuric acid or acetic acid, pyridine and zinc chloride solution specified. The acids can easily attack machine parts etc. can only be used with special precautions and also have the disadvantage that they are gradually decomposing act on the cellulose molecule. Zinc chlorine also has a similar degradative effect on the cellulose ester, so that the solutions can only be kept for a limited time. But pyridine comes as a solvent for the present purpose on a large scale out of the question because of its high price, its disgusting smell and toxicity.
Es wurde nun gefunden, daß man Zelluloseformiat in Flüssigkeiten, welche es allein für sich nicht aufzulösen vermögen, löslich machen kann, indem man ein- oder mehrwertige Phenole in diesen Flüssigkeiten zur Auflösung bringt. Die so hergestellten Lösungen zeigen nicht die oben angeführten Nachteile.It has now been found that cellulose formate in liquids, which it alone for unable to dissolve, can be made soluble by using monohydric or polyhydric phenols dissolves in these liquids. The solutions thus prepared show not the disadvantages listed above.
Es werden beispielsweise 30 kg Resorcin in 45 1 Wasser gelöst und in diese Lösung 10 kg Zelluloseformiat eingetragen und gut durchgerührt, wobei letzteres vollkommen in Lösung geht.For example, 30 kg of resorcinol are dissolved in 45 liters of water and put into this solution 10 kg of cellulose formate entered and stirred well, the latter being perfect goes into solution.
Aus den so gewonnenen Lösungen kann das Zelluloseformiat in beliebiger Form abgeschieden werden, z. B. durch geeignete Fällmittel als plastische Masse, oder durch Einspinnen in ein Fällbad als Faden, durch Vergießen auf Unterlagen als Film, durch Verstreichen auf beliebige Gegenstände als Lackschicht usw. Das zur Auflösung benutzte Phenol kann, wenn erforderlich, aus den geformten Gebilden durch Auswaschen entfernt werden.The cellulose formate can be deposited in any form from the solutions obtained in this way, e.g. B. by suitable precipitants as a plastic mass, or by spinning into a precipitation bath as a thread, by casting on substrates as a film, by spreading it on any object as a layer of varnish, etc. That used for dissolving Phenol can, if necessary, be removed from the formed structures by washing will.
Die lösende Wirkung von Phenolen auf Zelluloseacetat ist in der Patentschrift 145106 beschrieben. Dort wird jedoch das Zelluloseacetat" unter Druck der Einwirkung des reinen Phenols (ohne Lösungsmittel) ausgesetzt, um auf diese Weise durch Verschweißen hornartige Produkte zu erzielen. Es war hiernach nicht vorauszusehen, daß Zelluloseformiat in Flüssigkeiten, welche dasselbe allein für sich nicht lösen, durch Zusatz von Phenolen zur Auflösung gebracht werden könne.The dissolving effect of phenols on cellulose acetate is described in patent specification 145106. There, however, the cellulose acetate "is subjected to the action of pure phenol (without solvent) under pressure in order to achieve horn-like products by welding. It was not foreseeable that cellulose formate would pass through in liquids which alone do not dissolve the same Addition of phenols can be made to dissolve.
Pate ν τ-An sp Ru c η :Pate ν τ-An sp Ru c η:
5555
Verfahren zur Herstellung von Zelluloseformiatlösungen, dadurch gekennzeichnet, daß als Lösungsmittel Lösungen von ein- oder mehrwertigen Phenolen verwendet werden.Process for the production of cellulose formate solutions, characterized in that that solutions of monohydric or polyhydric phenols are used as solvents.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE265852C true DE265852C (en) |
Family
ID=523050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT265852D Active DE265852C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE265852C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068421B (en) * | 1959-11-05 | Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk | Process for the permanent protection of threads, fibers, films or foils made of regenerated cellulose or cellulose derivatives against termites |
-
0
- DE DENDAT265852D patent/DE265852C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068421B (en) * | 1959-11-05 | Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk | Process for the permanent protection of threads, fibers, films or foils made of regenerated cellulose or cellulose derivatives against termites |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE265852C (en) | ||
| DE266600C (en) | ||
| DE110987C (en) | ||
| DE567217C (en) | Process for the production of aqueous rubber dispersions from raw or regenerated rubber in the presence of dispersants (or protective colloids) such as soaps, saponin, casein and the like. like | |
| DE267307C (en) | ||
| DE122289C (en) | ||
| AT114106B (en) | Process for the preparation of compounds from indene and phenols. | |
| DE106504C (en) | ||
| DE293905C (en) | ||
| DE267219C (en) | ||
| DE233473C (en) | ||
| DE249938C (en) | ||
| DE248885C (en) | ||
| DE561400C (en) | Process for the preparation of monoaroyl-m- or -p-arylenediamines of the benzene or naphthalene series | |
| DE296091C (en) | ||
| DE108761C (en) | ||
| DE195656C (en) | ||
| DE1266097B (en) | Acid galvanic zinc bath and additives for the same | |
| DE308427C (en) | ||
| DE222873C (en) | ||
| DE221889C (en) | ||
| DE647418C (en) | Process for the production of colored structures from cellulose esters | |
| DE86096C (en) | ||
| DE188435C (en) | ||
| AT131131B (en) | Process for the preparation of curable condensation products from phenolic alcohols. |