DE485189C - Process for the manufacture of hardened casein products - Google Patents

Process for the manufacture of hardened casein products

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Publication number
DE485189C
DE485189C DEI29384D DEI0029384D DE485189C DE 485189 C DE485189 C DE 485189C DE I29384 D DEI29384 D DE I29384D DE I0029384 D DEI0029384 D DE I0029384D DE 485189 C DE485189 C DE 485189C
Authority
DE
Germany
Prior art keywords
manufacture
hardened
casein
casein products
hardened casein
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
Application number
DEI29384D
Other languages
German (de)
Inventor
Dr Otto Ernst
Dr Kurt Sponsel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI29384D priority Critical patent/DE485189C/en
Application granted granted Critical
Publication of DE485189C publication Critical patent/DE485189C/en
Expired legal-status Critical Current

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Description

Verfahren zur Herstellung von gehärteten Caseinprodukten Die bisherige Arbeitsweise zur Herstellung von Caseinkunststoffen besteht in der Herstellung eines Caseinrohlings aus Casein. Wasser und Weichmachungs---bzw. Klärungsmitteln. Dieser Caseinrohling ist noch wasserquellbar und entsprechend wasserempfindlich und muß durch Behandlung mit einer etwa 7prozentigen Formaldehydlösung gehärtet, d. h. wasserunempfindlich gemacht werden. Bei dicken Gegenständen dauert diese Härtung sehr lange, beispielsweise bei i cm dickem Arbeitsstück etwa einen Monat.Process for the production of hardened casein products The previous one The way in which casein plastics are made is to make a Casein blanks made from casein. Water and softening --- or. Clarifiers. This Casein blank is still water-swellable and accordingly water-sensitive and must hardened by treatment with an approximately 7% formaldehyde solution, d. H. insensitive to water be made. In the case of thick objects, this hardening takes a very long time, for example about a month for a work piece that is 1 cm thick.

Es wurde nun gefunden, daß man diesen Härtungsvorgang-sehr stark abkürzen, ja fast augenblicklich gestalten kann, wenn man an Stelle des Formaldehyds Glyoxal oder dessen Homologe und Derivate benutzt. Es war überraschend, daß die gleiche Unlöslichmachung in kürzerer Zeit durch Glyoxal erzeugt wird.It has now been found that this hardening process can be shortened very sharply, yes, you can create it almost instantly if you use glyoxal instead of formaldehyde or its homologues and derivatives are used. It was surprising that the same Insolubilization is produced in a shorter time by glyoxal.

Beispielsweise werden Knöpfe durch Pressen der nachfolgenden Mischung bei i 2o° hergestellt ioo g Labcasein, 2 g Methyldiphenylamin, 12 g 5oprozentiges Glyoxal, 7 Prozent Essigsäure enthaltend, werden 2¢ Stunden bei gewöhnlicher Temperatur vermischt und sind dann verwendungsbereit.For example, buttons are made by pressing the following mixture 100 g of rennet casein, 2 g of methyldiphenylamine, 12 g of 5% strength produced at i 20 ° Glyoxal, containing 7 percent acetic acid, is 2 ¢ hours at ordinary temperature mixed and are then ready to use.

Oder die Knöpfe werden aus einer Mischung von ioo g Labcasein, 2 g Weichmachungsmittel, 18 g 3oprozentiges Glyoxal, 8 Prozent Natriumacetat enthaltend, hergestellt. Die Knöpfe sind nach erfolgter Pressung unempfindlich. Bei vielfachen Versuchen hat sich gezeigt, daß, mit ungefähr q.o bis ¢3 Mol. Aldehyd (R:CHO) ioo Mol. Stickstoffprodukt gehärtet werden können.Or the buttons are made from a mixture of 100 g rennet casein, 2 g Softening agent, containing 18 g of 3 percent glyoxal, 8 percent sodium acetate, manufactured. The buttons are insensitive after pressing. With multiples Experiments have shown that with about q.o to ¢ 3 mol. Of aldehyde (R: CHO) ioo Mol. Nitrogen product can be hardened.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von gehärteten Caseinprodukten, gegebenenfalls unter Zusatz von Klär- oder Schönungsmitteln, Farb- oder Füllstoffen, dadurch gekennzeichnet, daß man die Härtung mit Glyoxal vornimmt.PATENT CLAIM: Process for the production of hardened casein products, if necessary with the addition of clarifying or fining agents, dyes or fillers, characterized in that the hardening is carried out with glyoxal.
DEI29384D 1926-10-27 1926-10-27 Process for the manufacture of hardened casein products Expired DE485189C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI29384D DE485189C (en) 1926-10-27 1926-10-27 Process for the manufacture of hardened casein products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI29384D DE485189C (en) 1926-10-27 1926-10-27 Process for the manufacture of hardened casein products

Publications (1)

Publication Number Publication Date
DE485189C true DE485189C (en) 1929-10-28

Family

ID=7187308

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI29384D Expired DE485189C (en) 1926-10-27 1926-10-27 Process for the manufacture of hardened casein products

Country Status (1)

Country Link
DE (1) DE485189C (en)

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