DE575927C - Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde - Google Patents

Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde

Info

Publication number
DE575927C
DE575927C DEI27804D DEI0027804D DE575927C DE 575927 C DE575927 C DE 575927C DE I27804 D DEI27804 D DE I27804D DE I0027804 D DEI0027804 D DE I0027804D DE 575927 C DE575927 C DE 575927C
Authority
DE
Germany
Prior art keywords
casein
substances
production
addition
formaldehyde
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
DEI27804D
Other languages
German (de)
Inventor
Dr Karl Ott
Dr Heribert Schuessler
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 DEI27804D priority Critical patent/DE575927C/en
Application granted granted Critical
Publication of DE575927C publication Critical patent/DE575927C/en
Expired legal-status Critical Current

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
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/21—Urea; Derivatives thereof, e.g. biuret

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Description

Verfahren zur Herstellung von Kunstmassen aus Casein unter Zugabe formaldehydabspaltender Stoffe Die Härtung von Kunstmassen aus Casein oder anderen Eiweißstoffen geschieht bis heute ausschließlich durch Nachbehandlung mit Formaldehydlösung. Dieses Verfahren, das außerordentlich zeitraubend ist, hat man bereits dadurch zu umgehen versucht, daß man dem Casein schon vor der Verarbeitung Substanzen zusetzte, die Formaldehyd abzugeben imstande sind. Eine solche Arbeitsweise hat sich bis jetzt aber nicht einzuführen vermocht, weil die Härtung entweder nur ungenügend oder aber zu schnell verläuft, wobei im letztgenannten Fall sich der besondere Nachteil geltend macht, daß die Mischung sich bei der üblichen Behandlung in einer geheizten Presse nicht mehr zu einer zusammenhängenden Masse von genügender Festigkeit verarbeiten läßt.Process for the production of artificial masses from casein with addition formaldehyde-releasing substances The hardening of synthetic masses made from casein or others To this day, protein substances are only done through post-treatment with formaldehyde solution. This procedure, which is extremely time consuming, is already closed tries to avoid the fact that substances were added to the casein before processing, which are able to give off formaldehyde. Such a way of working has so far but was unable to introduce it because the hardening was either insufficient or else runs too quickly, whereby in the latter case the particular disadvantage applies makes that the mixture with the usual treatment in a heated press no longer process into a coherent mass of sufficient strength leaves.

Es wurde nun die Beobachtung gemacht, daß man sehr gut die Härtung ohne Benachteiligung bereits in der Masse vornehmen kann, wenn man solche Körper verwendet, die Formaldehyd innerhalb bestimmter Temperaturen, nämlich den beim Pressen der Kunstmasse anzuwendenden, abgeben und als Spaltprodukte dann Substanzen liefern, die ihrerseits wiederum elastifizierend und auf-Bellend wirken. Als solche Körper wurden Methylolderivate von Urethanen besonders geeignet gefunden, die vorzüglich gehärtete und gut durchscheinende Produkte liefern und die lange, verteuernde Nachbehandlung mit Formaldehydlösung überflüssig machen. Beispiel 5o kg Casein, S kg Methylolbutylurethan C4H90-CONHCH_,OH, Tokg Wasser, i kg Butanol, z kg Aceton werden gut vermischt und 5 Minuten auf 6o Atm., dann 15 Minuten auf 22o Atm. bei 7o bis go° in der Presse gehalten.The observation has now been made that the hardening can already be carried out very well without disadvantage in the mass if one uses such bodies that release formaldehyde within certain temperatures, namely those to be used when pressing the synthetic material, and then deliver substances as cleavage products, which in turn have an elasticizing and barking effect. As such bodies, methylol derivatives of urethanes have been found to be particularly suitable, which provide excellently hardened and well-translucent products and make the long, expensive post-treatment with formaldehyde solution superfluous. Example 5o kg casein, S kg Methylolbutylurethan C4H90-CONHCH_, OH, Tokg water, i kg butanol, z kg of acetone are mixed well and 5 minutes at 6o atm., Then 1 for 5 minutes on 22o atm. held at 7o to go ° in the press.

Claims (1)

PATEIITTANSPRUCH Verfahren zur Herstellung von Kunstmassen aus Casein unter Zugabe formaldehydabspaltender Stoffe, darin bestehend, daß man der Masse Methylolderivate von Urethanen zusetzt, die bei gewöhnlicher Temperatur beständig sind, bei der Temperatur des Pressens aber in Formaldehyd und eine schwerflüchtige Verbindung zerfallen.CLAIM OF THE PARTY Process for the production of synthetic masses from casein with the addition of formaldehyde-releasing substances, consisting in the fact that one of the mass Adds methylol derivatives of urethanes, which are stable at ordinary temperature are, at the temperature of the pressing, but in formaldehyde and a low volatility Connection disintegrate.
DEI27804D 1926-04-01 1926-04-01 Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde Expired DE575927C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI27804D DE575927C (en) 1926-04-01 1926-04-01 Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI27804D DE575927C (en) 1926-04-01 1926-04-01 Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde

Publications (1)

Publication Number Publication Date
DE575927C true DE575927C (en) 1933-05-05

Family

ID=7186865

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI27804D Expired DE575927C (en) 1926-04-01 1926-04-01 Process for the production of synthetic masses from casein with the addition of substances that release formaldehyde

Country Status (1)

Country Link
DE (1) DE575927C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040232B (en) * 1954-03-18 1958-10-02 Basf Ag Process for the production of protein-containing preparations with improved properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040232B (en) * 1954-03-18 1958-10-02 Basf Ag Process for the production of protein-containing preparations with improved properties

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