DE406013C - Process to increase the softness and elasticity of molded cellulose esters - Google Patents
Process to increase the softness and elasticity of molded cellulose estersInfo
- Publication number
- DE406013C DE406013C DET25342D DET0025342D DE406013C DE 406013 C DE406013 C DE 406013C DE T25342 D DET25342 D DE T25342D DE T0025342 D DET0025342 D DE T0025342D DE 406013 C DE406013 C DE 406013C
- Authority
- DE
- Germany
- Prior art keywords
- elasticity
- softness
- increase
- cellulose esters
- esters
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Verfahren zur Erhöhung der Weichheit und Elastizität geformter Zelluloseester. Es wurde gefunden, daß die wasserunlöslichen Ester der Adipinsäure mit Zyklohexanolen die Geschmeidigkeit geformter Zelluloseester (Filme) erhöhen tind gleichzeitig die Feuergefährlichkeit herabsetzen. Diese Ester bieten den technischen Vorteil, daß sie, ohne sich auszuscheiden, auch bei großen Zusätzen feste Lösungen ergeben und technisch leicht zugänglich sind. Auch wurde festgestellt, daß schon sehr kleine Mengen dieser Ester die angeführten Wirkungen ergeben, und zwar wurde die Geschmeidigkeit von Filmen mit diesen Estern schon bei einem halb so großen Zusatz erreicht, als er sich z. B. bei zimtsaurem Amyl als notwendig erwies.Process for increasing the softness and elasticity of molded cellulose esters. It has been found that the water-insoluble esters of adipic acid with cyclohexanols The suppleness of formed cellulose esters (films) increase at the same time the Reduce fire hazard. These esters offer the technical advantage that they result in solid solutions without separating out, even with large additives are easily accessible from a technical point of view. It was also found that they were already very small Amounts of these esters give the listed effects, namely suppleness of films with these esters achieved with an addition half as large as he z. B. with cinnamic acid amyl proved necessary.
Beispielsweise werden 5 Gewichtsteile Nitrozellulose in 29 Gewichtsteilen Amylazetat und i i Gewichtsteilen Alkohol gelöst und mit 33/4 Gewichtsteilen festem Adipinsäurezyklohexanolester vom Schmelzpunkt 35 bis 36° versetzt. Man erhält nach dem Gießen und Verdunsten einen geschmeidigen, homogenen Film.For example, 5 parts by weight of nitrocellulose become 29 parts by weight Amyl acetate and i i parts by weight of alcohol dissolved and 33/4 parts by weight of solid Cyclohexanol adipate was added from a melting point of 35 to 36 °. One receives after a smooth, homogeneous film after pouring and evaporation.
In obigem Beispiel können an die Stelle der Nitrozellulose andere Ester der Zellulose treten. Ebenso lassen sich die angegebenen Lösungsmittel durch Butylazetat und Isopropylalkohol ersetzen. Auch kann an die Stelle des Adipinsäurezvklohexanolesters der Adipinsäuremethylzyklohexanolester oder dessen nächste Homologe treten.In the above example, nitrocellulose can be replaced by other Esters of cellulose step. The specified solvents can also be passed through Replace butyl acetate and isopropyl alcohol. It can also take the place of the cyclohexanol ester of adipic acid the adipic acid methyl cyclohexanol ester or its closest homologues occur.
Werden ferner z. B. 5 Gewichtsteile Nitrozellulose mit 15 Gewichtsteilen Alkohol und 5 Gewichtsteilen Adipinsäurezyklohexanolester bei 8o° gewalzt, so entsteht eine geschmeidige, plastische Masse, die, ähnlich wie Zelluloid, weiterverarbeitet werden kann.Are also z. B. 5 parts by weight of nitrocellulose with 15 parts by weight of alcohol and 5 parts by weight of cyclohexanol adipate rolled at 80 °, the result is a smooth, plastic mass, which, similar to celluloid, can be further processed.
Die Adipinsäureester des Zyklohexanols und seiner Homologen werden in der Weise hergestellt, daß ,man r Teil Adipinsäure in 3 Teilen Zyklohexanol, Methylzyklohexanol oder anderen Homologen warm zur Lösung bringt, trockenes Salzsäuregas einleitet, zwei weitere Stunden erhitzt und danach fraktioniert. Beispielsweise siedet der feste und bei 35 bis 36° schmelzende Adipinsäurezyklohexanolester unter g min Druck bei 208 bis 2i2° und der Adipinsäure-o-:methylz; klohexanolester unter i i min Druck bei 225 bis 226°.The adipic acid esters of cyclohexanol and its homologues are prepared in such a way that, r part of adipic acid in 3 parts of cyclohexanol, Bringing methylcyclohexanol or other homologues to a warm solution, dry hydrochloric acid gas initiates, heated for two more hours and then fractionated. For example the solid cyclohexanol ester, which melts at 35 to 36 °, underboils g min pressure at 208-212 ° and the adipic acid-o-: methylz; klohexanolester under i i min pressure at 225 to 226 °.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET25342D DE406013C (en) | 1921-05-14 | 1921-05-14 | Process to increase the softness and elasticity of molded cellulose esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET25342D DE406013C (en) | 1921-05-14 | 1921-05-14 | Process to increase the softness and elasticity of molded cellulose esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE406013C true DE406013C (en) | 1924-11-13 |
Family
ID=7552003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DET25342D Expired DE406013C (en) | 1921-05-14 | 1921-05-14 | Process to increase the softness and elasticity of molded cellulose esters |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE406013C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763204C (en) * | 1937-12-12 | 1953-02-16 | Hydrierwerke A G Deutsche | Process for the preparation of esters from cycloaliphatic alcohols and polybasic carboxylic acids |
-
1921
- 1921-05-14 DE DET25342D patent/DE406013C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE763204C (en) * | 1937-12-12 | 1953-02-16 | Hydrierwerke A G Deutsche | Process for the preparation of esters from cycloaliphatic alcohols and polybasic carboxylic acids |
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