CH234583A - Process for the preparation of a substance with physical properties similar to glycerin. - Google Patents

Process for the preparation of a substance with physical properties similar to glycerin.

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Publication number
CH234583A
CH234583A CH234583DA CH234583A CH 234583 A CH234583 A CH 234583A CH 234583D A CH234583D A CH 234583DA CH 234583 A CH234583 A CH 234583A
Authority
CH
Switzerland
Prior art keywords
stabilizer
substance
physical properties
mass
urea
Prior art date
Application number
Other languages
German (de)
Inventor
Alfred Dr Oswald
Original Assignee
Alfred Dr Oswald
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 Alfred Dr Oswald filed Critical Alfred Dr Oswald
Publication of CH234583A publication Critical patent/CH234583A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08Materials not undergoing a change of physical state when used
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36Carboxylic acids; Salts or anhydrides thereof
    • A61K8/368Carboxylic acids; Salts or anhydrides thereof with carboxyl groups directly bound to carbon atoms of aromatic rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42Amides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12Ureas; Thioureas

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  



  Verfahren zur Herstellung eines Stoffes mit Glyzerin   ähnliehen    physikalischen Eigenschaften.



   Das vorliegende Patent betrifft ein Verfahren zur Herstellung eines Stoffes mit Glyzerin   ähnlichen physikalischen Eigenschaf-    ten, wie z. B. Viskosität und Schmelzpunkt unter Verwendung von Formaldehyd, Harn  stoff und Ammonhydrat.   



   Es ist bereits vorgeschlagen worden.



  Formaldehyd mit Harnstoff unter Zugabe von Ammoniumhydrat zu kondensieren. Es hat sich aber gezeigt, dass derartig hergestellte Präparate weder genügend beständig sind noch genügend Hygroskopizität noch   ge-    nügemd tiefen Schmelzpunkt aufweisen.



   Das Verfahren gemäss der Erfindung ist dadurch gekennzeichnet, dass man einer Mischung von Harnstoff und Formaldehyd bei Raumtemperatur Ammonhydrat zugibt, wobei diese Temperatur konstant beibehalten wird, hierauf die Masse bei mindestens   90  C    bis zur gewünschten Viskosität erhitzt und dieselbe sodann in ein Stabilisatoren   enthal-    tendes Gefäss einbringt und bis zur   Beendi-    gung der Reaktion sich selbst überläBt, und    cul    anschliessend neutralisiert.



   Die Erhitzung der Masse kann   bei'kon-    stanten Temperaturen zwischen 90 und d 125¯ C, vorzugsweise bei   95-100  C vor-    genommen werden. Als Stabilisatoren haben sich z. B. Cadmium oder Zink bezw. ein Ge  misch    von solchen besonders bewährt.



   Beispiel :
10 Gewichtsteile Formaldehyd wurden mit 5 Gewichtsteilen Harnstoff bei   20  C    in einem   Eessel gemischt und dieser    Mischung 4 Gewichtsteile   Ammonhydrat    zugesetzt, wobei dafür Sorge getragen wurde, dass während des ganzen Prozesses die Temperatur sich stets gleich blieb. Anschliessend wurde die Masse auf 95-100¯ C bis zur Erreichung einer   Viskosität von 25  Be 1 Stunde lang    erhitzt und daraufhin die Masse in ein offenes   GefäB    umgefüllt, das Spuren von   pulverisier-    tem Cadmium enthielt, und daraufhin die Masse 5 Ta. ge lang sich selbst überlassen. 



  Hierauf wurde die alkalische   ZIasse mit Sali-      cylsäure neutralisiert.   



   Zur   Neutralisation l ; ann    man   auch Essig-    saure oder ähnliehe Säuren verwenden, wobei die Neutralisation   zweekmässigerweise    nicht auf einmal, sondern in mindestens zwei zeitlich   voneinander getrennten Intervallen dureh-    geführt wird. Hierdurch werden die ¯belstÏnde vermieden, die sich bei Neutralisation des ganzen Ansatzes auf einmal leicht einstellen und darin bestehen, da¯ das   neutrali-    sierte   Produkt naeh Verlauf    von 2 bis 3   Ta-      en    wieder alkalisch geworden ist und dass sich in dieser Zeit ein Bodensatz   ausgeschie-    den hat.



   Das erhaltene Produkt ist von kristallheller Klarheit, hat einen Sehmelzpunkt von   zirka-93  C und ist    in Wasser und Alkohol ohne Trübung löslich. Das erfindungsgemäss hergestellte Produkt soll als   Glyzerin-Aus-    tausch-Staff in der kosmetischen Industrie und   als Gefrierschutzmittel für Automobil-    kühler Verwendung finden.



  



  Process for making a substance containing glycerin with similar physical properties.



   The present patent relates to a method for producing a substance with glycerin-like physical properties, such as B. viscosity and melting point using formaldehyde, urea and ammonium hydrate.



   It has already been suggested.



  To condense formaldehyde with urea with the addition of ammonium hydrate. It has been shown, however, that preparations produced in this way are neither sufficiently stable nor have sufficient hygroscopicity nor sufficiently low melting point.



   The process according to the invention is characterized in that ammonium hydrate is added to a mixture of urea and formaldehyde at room temperature, this temperature being maintained constant, the mass is then heated at at least 90 ° C. to the desired viscosity and then in a stabilizer containing it Introduces the vessel and leaves it to itself until the end of the reaction, and then neutralizes it.



   The mass can be heated at constant temperatures between 90 and 125 ° C, preferably at 95-100 ° C. As stabilizers z. B. cadmium or zinc respectively. a mixture of these is particularly effective.



   Example:
10 parts by weight of formaldehyde were mixed with 5 parts by weight of urea in a kettle at 20 ° C. and 4 parts by weight of ammonium hydrate were added to this mixture, taking care that the temperature always remained the same during the entire process. The mass was then heated to 95-100 ° C for 1 hour until a viscosity of 25 Be was reached and the mass was then transferred to an open vessel containing traces of pulverized cadmium, and the mass was then poured for 5 days left to yourself.



  The alkaline class was then neutralized with salicylic acid.



   For neutralization l; It is also possible to use acetic acid or similar acids, whereby the neutralization is not carried out all at once, but in at least two time-separated intervals. This avoids the bad conditions which can easily arise when the whole batch is neutralized and which consist in the neutralized product becoming alkaline again after 2 to 3 days and a sediment forming during this time has dropped out.



   The product obtained is crystal clear, has a melting point of about −93 ° C. and is soluble in water and alcohol without clouding. The product produced according to the invention is intended to be used as a glycerine exchange staff in the cosmetic industry and as an anti-freeze for automobile coolers.

 

Claims (1)

PATENTANSPRUCH : Verfahren zur Herstellung eines Stoffes mit Glyzerin ähnliehen physikalischen Ei genschaften unter Verwendung von Formaldehyd, Harnstoff und Ammonhydrat. da- durch gekennzeichnet, da¯ man einer Mi- schung von Harnstoff und Formaldehyd bei Raumtemperatur Ammonhydrat zugibt, wobei diese Temperatur konstant beibehalten wird. PATENT CLAIM: Process for the production of a substance with glycerine similar physical properties using formaldehyde, urea and ammonium hydrate. characterized in that ammonium hydrate is added to a mixture of urea and formaldehyde at room temperature, this temperature being kept constant. hierauf die Masse bei mindestens 90 C bis zur gewünschten Viskosität erhitzt und die @elbe sodann in ein Stabilisatoren enthal- tendesGefässeinbringtund. bis zur Beendigung der Reaktion sich selbst iiberlässt und ansehliessend neutralisiert. Das Produkt ist von kristallheller Klarheit, hat einen Schmelzpunkt von zirka. - 23¯ C und ist in Wasser und Alkohol ohne Triibung löslich. the mass is then heated to the desired viscosity at at least 90 C and the same is then placed in a container containing stabilizers. Left to itself until the end of the reaction and then neutralized. The product is crystal clear, has a melting point of approx. - 23¯ C and is soluble in water and alcohol without friction. UNTERAN SPRUCHE : 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Erhitzung der Masse bei Temperaturen bis 125¯ C vorgenommen wird. SUBSEQUENT PROPOSALS: 1. Method according to patent claim, characterized in that the mass is heated at temperatures of up to 125¯ C. 2. Verfahren nach Patentanspruch. dadurch gekennzeichnet, da¯ man als Stabilisator Cadmium verwendet. 2. Method according to claim. characterized in that cadmium is used as a stabilizer. 3. Verfaahren nach Patentanspruch, dadurch gekennzeichnet, dass man als Stabili sator Zink verwendet. 3. The method according to claim, characterized in that zinc is used as a stabilizer. 4. Verfahren nach Patentanspruch, da durci gekennzeichnet, dass man als Stabili sator ein Gemisch von Cadmium und Zink verwendet. . Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Neutrali- station in mindestens zwei zeitlich voneinander geetrennten Intervallen vornimmt. 4. The method according to claim, since durci characterized in that a mixture of cadmium and zinc is used as a stabilizer. . Method according to patent claim, characterized in that the neutralization station is carried out in at least two time-separated intervals. 6. Verfahren nach Patentanspruch und Unteranspruch 5. dadurch gekennzeichnet. dassmanmitSalicylsäureneutralisiert. 6. The method according to claim and dependent claim 5, characterized. that one neutralizes with salicylic acids. 7. Verfahren nach Patentanspruch und Unteranspruch 5. dadurch gekennzeichnet. dass man mit Essigsäure neutralisiert. 7. The method according to claim and dependent claim 5, characterized. that you neutralize with acetic acid.
CH234583D 1943-02-13 1943-02-13 Process for the preparation of a substance with physical properties similar to glycerin. CH234583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH234583T 1943-02-13

Publications (1)

Publication Number Publication Date
CH234583A true CH234583A (en) 1944-10-15

Family

ID=4458581

Family Applications (1)

Application Number Title Priority Date Filing Date
CH234583D CH234583A (en) 1943-02-13 1943-02-13 Process for the preparation of a substance with physical properties similar to glycerin.

Country Status (1)

Country Link
CH (1) CH234583A (en)

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