DE353233C - Process to increase the softness and elasticity of nitrocellulose-containing plastics - Google Patents
Process to increase the softness and elasticity of nitrocellulose-containing plasticsInfo
- Publication number
- DE353233C DE353233C DE1920353233D DE353233DD DE353233C DE 353233 C DE353233 C DE 353233C DE 1920353233 D DE1920353233 D DE 1920353233D DE 353233D D DE353233D D DE 353233DD DE 353233 C DE353233 C DE 353233C
- Authority
- DE
- Germany
- Prior art keywords
- nitrocellulose
- elasticity
- softness
- increase
- acetals
- 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
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Paints Or Removers (AREA)
Description
Verfahren zur Erhöhung der Weichheit und .Elastizität nitrozellulosehaltiger Kunststoffe. Als Weichhaltungsimittel für nitrozelluloselialtige Kunststoffe (Filme, Kunstleder usw.) wurden bisher fast nur Ester venvvendet. tll)erraschien:der@veise hat sich nun gezeigt, :daß auch Azetale, sofern sie einen, gienügend hohen Siedepunkt und niederen Schmelzpunkt besitzen, für .den genannten Zweck hervorragend g2.eignet sind, obwohl sie den Sauerstoff nur in wenig aktiver, ätherartiger Bindung enthalten und demientspnechend -ihr Lösungsvermögen für Nitrozellulose nicht groß ist. Insbesondere kommen die Azetale des Azetalrl.ehyds mit Benzylalkohol und seinen Homologen in Betracht Die guten Eigenschaften dieser Produkte ,waren um so weniger zu. :erwarten, als die früher bereits als Lösungsmittel bzw. Kamp-f erersatzmittel vorgeschlagenen ei:nrfachen Äther des Benzylalkohols sich als praktisch unbrauchbar herausgestellt .haben. Die Verwendung leicht herstellbarer ätherartiger Verbindungen, welche bei auch Im übrigen geeigneten physikalischen Eigen.schadten ein: hinreichendes Lösungsvermögen besitzen, bedeutet einen technischlen F artscihritt, besonders, :da :die Azetale auch infolge ihrer großen Beständigkeit den bisher verwendeten Weichhaltungsmitteln überlegen sind.Process to increase the softness and elasticity of plastics containing nitrocellulose. As softeners for nitrocellulose-type plastics (films, artificial leather, etc.), almost only esters have been used up to now. tll) surprise: it has now been shown that acetals, too, provided they have a sufficiently high boiling point and low melting point, are excellently suited for the stated purpose, although they are only slightly more active and ethereal in oxygen Contain binding and dementspnechend - their dissolving power for nitrocellulose is not great. In particular, the acetals of acetaldehyde with benzyl alcohol and its homologues come into consideration. The good properties of these products were all the less good. : expect when the simple ethers of benzyl alcohol, which were previously proposed as solvents or as a substitute for combatants, have proven to be practically unusable. The use of ethereal compounds that are easy to prepare, which have adequate dissolving power in the case of other suitable physical properties, means a technical step, especially because the acetals are also superior to the softeners used so far because of their great resistance.
Inder amerikanischen Patentschrift 559823 ,ist die Herstellung zelluloidartigerMassen unter Verwendung von Gemischen beschrieblen, welche neben zahlreichen anderen Verbindungen auch Azetalie der .gewöhnlichen Alkohole der iFettrei#he enthalten können. Hieraus war über das Verhalten von Azetalen an sich, namentlich von solchen, -die :sich von höhermolekilaren und fettaromatischen Alkolialeii ableiten, nichts zu entnehmen. Es ist nicht möglich, mit den erwähnten Gemischen Massen herzustellen, die an Beständigkeit, Festigkeit und -Elastizität den unter Zusatz fettaromatischer Azetale erhältilchen an die Seite gestellt werden können.In U.S. Patent 559823, the manufacture of celluloid-like masses is described using mixtures which, in addition to numerous other compounds may also contain acetals of the common alcohols of the fat series. From this was about the behavior of acetals per se, especially of those -the: themselves derive from higher molecular weight and fatty aromatic alcohols, nothing to be found. It is not possible to use the mixtures mentioned to produce compounds that are less resistant, Strength and elasticity obtained with the addition of fatty acetals can be put aside.
Beispiel. 8o Teile Kollodiumwolle werden in einem Gemisch von 26o Teilern Azeton, 26o Teilen Alkohol, Zoo Teilen Benzol und ioo Teilen Amylazetat aufgelöst und hierzu ioo Teile des Azetals aus Azetaldehyd und Benzylälkohol gegeben. Durch .Ausgießen :der Lösung und die übliche Weiterbehandlung erhält man Filme von vorzüglicher Weichheit ,und Elastizität.Example. 8o parts collodion wool are mixed in a 26o Parts acetone, 26o parts alcohol, zoo parts benzene and 100 parts amyl acetate dissolved and added to this 100 parts of the acetal from acetaldehyde and benzyl alcohol. By pouring out the solution and the usual further treatment, films are obtained from excellent softness and elasticity.
An Stelle des Azetals ,aus Benzylalkohol kann auch das aus :dem @Gemisch :der isom.eren Xylylalkohole und Azetaldehyd gewonnene Produkt in gleicher Weise verwendet werden.Instead of the acetal, benzyl alcohol can also be made from: the @ mixture : the isomeric xylyl alcohols and acetaldehyde obtained in the same way be used.
@Das Benzylazetal ist ein. Öl vom Siedepunkt i98° unter 2o mm Druck. Die is:omeren Xylylazetale sieden unter gleichen Bedingungen etwa i#:2' höher.@The benzyl acetal is a. Oil with a boiling point of 98 ° under 20 mm pressure. The is: omeren xylyl acetals boil about i #: 2 'higher under the same conditions.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE353233T | 1920-04-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE353233C true DE353233C (en) | 1922-05-15 |
Family
ID=6280615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1920353233D Expired DE353233C (en) | 1920-04-04 | 1920-04-04 | Process to increase the softness and elasticity of nitrocellulose-containing plastics |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE353233C (en) |
-
1920
- 1920-04-04 DE DE1920353233D patent/DE353233C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1569862C3 (en) | Adhesives which harden in the absence of oxygen and are based on acrylic acid esters of polyhydric alcohols | |
DE2542937C3 (en) | Fragrance-releasing solid block | |
DE857948C (en) | Process for the production of neutral esters of carbonic acid | |
DE353233C (en) | Process to increase the softness and elasticity of nitrocellulose-containing plastics | |
DE700176C (en) | Manufacture of plastics of high hardness and strength | |
DE1091751B (en) | Process for the production of vinyl alkyl ether polymers | |
DE719675C (en) | Process for the production of methacrylic polymers with a low degree of polymerization | |
DE428058C (en) | Process for the production of plastic, celluloid or rubber-like materials or of paints | |
DE737664C (en) | Production of plasticized polymeric methacrylic acid amide | |
AT148148B (en) | Process for the production of condensation products. | |
DE369447C (en) | Process for increasing the softness and suppleness of cellulose ester masses | |
DE442764C (en) | Process to increase the suppleness, elasticity and clarity of paints | |
AT145174B (en) | Process for the production of paints. | |
AT165041B (en) | Process for the preparation of a shortening agent for baking purposes | |
AT69958B (en) | Process for the preparation of celluloid-like masses. | |
AT55514B (en) | Process for the production of celluloid-like masses from acetyl cellulose. | |
DE1076942B (en) | Use of stabilizers against the effects of ultraviolet rays in hardenable, unsaturated polyester resin compositions | |
AT147795B (en) | Glass substitutes, in particular for optical lenses. | |
DE349868C (en) | Process for the representation of photographic films | |
AT66526B (en) | Process for the production of lacquers from cellulose esters. | |
DE374322C (en) | Process for the production of plastic masses | |
DE712228C (en) | Process for the production of a paint raw material | |
DE695561C (en) | Process for the preparation of soluble and at the same time high molecular weight polymerisation products of acrylic acid compounds | |
DE817718C (en) | Preparation of tobacco and tobacco products | |
DE908917C (en) | Plasticizers |