AT94782B - Process for the production of synthetic compositions from acetyl cellulose and rubber. - Google Patents
Process for the production of synthetic compositions from acetyl cellulose and rubber.Info
- Publication number
- AT94782B AT94782B AT94782DA AT94782B AT 94782 B AT94782 B AT 94782B AT 94782D A AT94782D A AT 94782DA AT 94782 B AT94782 B AT 94782B
- Authority
- AT
- Austria
- Prior art keywords
- rubber
- acetyl cellulose
- colloidal
- production
- synthetic compositions
- Prior art date
Links
- 229920002301 cellulose acetate Polymers 0.000 title claims description 15
- 229920001971 elastomer Polymers 0.000 title claims description 14
- 239000005060 rubber Substances 0.000 title claims description 14
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 title claims description 13
- 229940081735 acetylcellulose Drugs 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000203 mixture Substances 0.000 title claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 1
- 229920001368 Crepe rubber Polymers 0.000 description 1
- 239000000899 Gutta-Percha Substances 0.000 description 1
- 240000000342 Palaquium gutta Species 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229920000588 gutta-percha Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000007965 rubber solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
In der Cöthenel Chemiker-Zeitung 1921, Nr. 102, ist über zwei neue elastische Massen, u. zw. über Ze'loidkautschuk und Zellonkautsehuk berichtet. Beim Zelluloidkautschuk bewährt sich das dort angegebene Herstellungsverfahren in der Praxis, die Azetylzellulosen hingegen waren noch immer so schwer in den Hydrierungsprodukten des Naphtalins und Phenols und ihrer Homologen und Analogen löslich, dass die Herstellung von Azetylzellulosenkautschuk erst durch das nachstehend beschriebene Verfahren möglich wurde.
Alle Kautschuk-, Guttapercha-, Balatasorten und synthetische Kautschuke werden in den Hy- drierungsprodukten des Naphtalins oder Phenols, ihrer Homologen und Analogen oder ihren Gemischen in der Kälte oder Wärme gelöst, worauf die nach dem Verfahren des Patentes Nr. 93174 hergestellten dispergierten kolloidalen Azetylzellulosen zugesetzt werden und die Mischung in einer Knetmaschine homogenisiert wird, so dass eine Azetylzellulosensuspension in Kautschuklosungen entsteht. Der technische Effekt liegt in der Bildung seiner kolloiden Azetylzellulosenkautschuksuspension, während nach der oben erwähnten Darstellungsweise nach der Chemiker-Zeitung nur eine unvollständige AzetylzelMosen- kaiitschuklösung entsteht.
Beispiel : 6 kg, nach dem Verfahren des Patentes Nr. 93174 auf kolloide Korngrösse gebrachte, trockene Azetylzellulose werden in einer 10% igen Ceylon-Crepe-Kautschuklösung in einer Knetmaschine homogenisiert. Diese dicke Masse kann mit dem Kautschuklösungsmittel beliebig verdünnt werden. Die Verdünnungen finden als Lacke und Imprägnierungsmittel Verwendung, die vom Lösungsmittel befreiten Rückstände bilden den Azetylzellulosekautschuk, eine plastische, biegsame Masse für Films, Schirmgriffe usw. Das Verfahren unterscheidet sich daher von dem der obgenannten Patentschrift dadurch, dass nicht in der Kautsohuklosung Dispersoide hergestellt werden, sondern aus fertiger, kolloider AzetylzellJ1lose ein Azetylzellulosekautschuk erzeugt wird.
Diese Azetylzellulosenkautschuksuspensionen lassen sich in verschiedenster Weise als Lacke, Imprägi1ierungsmittel u. dgl. verwenden.
Der durch Verdampfen des Lösungsmittels gewonnene Rückstand lässt sich in der üblichen Weise
EMI1.2
Die Produkte zeichnen sich durch grosse Elastizität aus.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
In the Cöthenel Chemiker-Zeitung 1921, No. 102, is about two new elastic masses, u. between Ze'loid rubber and Zellonkautsehuk reported. In the case of celluloid rubber, the manufacturing process specified there has proven itself in practice, but the acetyl celluloses were still so difficult to dissolve in the hydrogenation products of naphthalene and phenol and their homologues and analogues that the production of acetyl cellulose rubber was only possible using the process described below.
All types of rubber, gutta-percha, balata and synthetic rubbers are dissolved in the hydrogenation products of naphthalene or phenol, their homologues and analogues or their mixtures in the cold or heat, whereupon the dispersed colloidal acetyl celluloses produced by the process of patent no. 93174 are dissolved are added and the mixture is homogenized in a kneading machine, so that an acetyl cellulose suspension in rubber solutions is formed. The technical effect lies in the formation of its colloidal acetyl cellulose rubber suspension, while according to the above-mentioned method of representation according to the Chemiker-Zeitung only an incomplete acetyl cellulose solution is produced.
Example: 6 kg of dry acetyl cellulose, brought to colloidal grain size according to the method of patent no. 93174, are homogenized in a 10% Ceylon crepe rubber solution in a kneading machine. This thick mass can be diluted as desired with the rubber solvent. The dilutions are used as varnishes and impregnating agents, the residues freed from the solvent form the acetyl cellulose rubber, a plastic, flexible mass for films, umbrella handles, etc. The process therefore differs from that of the above patent in that dispersoids are not produced in the rubber solution, Instead, an acetyl cellulose rubber is produced from finished, colloidal acetyl cellulose.
These acetyl cellulose rubber suspensions can be used in a wide variety of ways as paints, impregnating agents and the like. use.
The residue obtained by evaporating the solvent can be removed in the usual way
EMI1.2
The products are characterized by great elasticity.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT94782T | 1921-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT94782B true AT94782B (en) | 1923-11-10 |
Family
ID=3614496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT94782D AT94782B (en) | 1921-10-12 | 1921-10-12 | Process for the production of synthetic compositions from acetyl cellulose and rubber. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT94782B (en) |
-
1921
- 1921-10-12 AT AT94782D patent/AT94782B/en active
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