DE610933C - Process for the production of molded articles - Google Patents
Process for the production of molded articlesInfo
- Publication number
- DE610933C DE610933C DE1930610933D DE610933DD DE610933C DE 610933 C DE610933 C DE 610933C DE 1930610933 D DE1930610933 D DE 1930610933D DE 610933D D DE610933D D DE 610933DD DE 610933 C DE610933 C DE 610933C
- Authority
- DE
- Germany
- Prior art keywords
- production
- glue
- fillers
- molded articles
- dried
- 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
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H1/00—Macromolecular products derived from proteins
- C08H1/02—Protein-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
- C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Dermatology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Description
Verfahren zur Herstellung von Formkörpern Es ist bekannt, tierischen Leim zwecks Herstellung von wasserfesten Leimen durch Erhitzen mit Säuren oder sauren Salzen zu verflüssigen und der so erhaltenen Leimlösung gerbend wirkende Substanzen, wie z. B. Formaldehyd, zuzusetzen. Man erhält nach dem Trocknen eine feste Masse, die in Wasser sich nicht mehr löst.Process for the production of moldings It is known animal Glue for the production of waterproof glues by heating with acids or acidic To liquefy salts and tanning the resulting glue solution, such as B. formaldehyde to be added. After drying, a solid mass is obtained, which no longer dissolves in water.
Ferner ist es bekannt, Massen mit tierischem Leim als Bindemittel in mehr oder minder feuchtem Zustande heiß zu verpressen, ebenso auch eine mehr oder minder getrocknete Masse mit Albumin und Gelatine als Bindemittel.It is also known to use animal glue as a binder to be pressed hot in a more or less moist condition, as well as one more or less dried mass with albumin and gelatin as binders.
Es wurde nun gefunden, daß tierischer Leim, der in bekannter Weise mit Säuren oder sauren Salzen verflüssigt und nach Zusatz von Formaldehyd oder ähnlich wirkenden Härtungsmitteln getrocknet worden ist, vorzüglich zu Formkörpern aller Art, gegebenenfalls nach Zusatz von Füllstoffen, heiß verpreßt werden kann. Als Füllstoffe verwendet man z. B. Papier, Holz, Leder, Knochen usw. in zerkleinertem Zustande, indem man entweder die getrocknete Leimmasse mit Füllstoffen vermischt oder den Leimlösungen die Füllstoffe zusetzt, dann trocknet und gegebenenfalls zerkleinert. Die Massen werden zweckmäßig bei einer Temperatur von 8o bis 9o° und einem Druck von etwa i50 kg pro Quadratzentimeter verpreßt.It has now been found that animal glue, in a known manner liquefied with acids or acidic salts and after the addition of formaldehyde or similar active hardeners has been dried, especially to moldings of all Type, optionally after the addition of fillers, can be hot-pressed. as Fillers are used e.g. B. paper, wood, leather, bones, etc. in shredded Condition either by mixing the dried glue mass with fillers or the fillers are added to the glue solutions, then dried and, if necessary, comminuted. The masses are expediently at a temperature of 8o to 9o ° and a pressure of about 150 kg per square centimeter.
Z. B. verwendet man folgende Leimlösung zum Imprägnieren der Füllstoffe: In 35 kg Wasser werden nacheinander gelöst: Kochsalz r1/4 kg, Salmiak i 1/4 kg, Chlorzink 21/2 kg und Essigsäure 50%ig 5 kg. In dieser Lösung- werden 20 kg zerkleinerter tierischer. Leim aufgequollen und durch Erwärmen verflüssigt. Nach dem Erkalten werden der Leimlösung 6i/4 kg :einer 35%igen Formaldehydlösung zugesetzt.E.g. the following glue solution is used to impregnate the fillers: The following are dissolved in 35 kg of water one after the other: Table salt 1/4 kg, Salmiak i 1/4 kg, Chlorzinc 21/2 kg and acetic acid 50% 5 kg. In this solution, 20 kg are crushed animal. Glue swelled and liquefied by heating. After cooling down 6i / 4 kg of a 35% formaldehyde solution are added to the glue solution.
Die getrockneten Leimprodukte und damit präparierte Füllstoffe können beliebig gefärbt werden.The dried glue products and fillers prepared with them can can be colored as desired.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE610933T | 1930-08-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE610933C true DE610933C (en) | 1935-03-19 |
Family
ID=6576202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930610933D Expired DE610933C (en) | 1930-08-20 | 1930-08-20 | Process for the production of molded articles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE610933C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011523A1 (en) * | 1978-10-18 | 1980-05-28 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Hydrogels from natural protein polymers, their production and soft contact lenses made from them |
-
1930
- 1930-08-20 DE DE1930610933D patent/DE610933C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011523A1 (en) * | 1978-10-18 | 1980-05-28 | ESSILOR INTERNATIONAL Compagnie Générale d'Optique | Hydrogels from natural protein polymers, their production and soft contact lenses made from them |
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