DE701075C - Process for the production of water-soluble condensation products - Google Patents

Process for the production of water-soluble condensation products

Info

Publication number
DE701075C
DE701075C DE1938C0053961 DEC0053961D DE701075C DE 701075 C DE701075 C DE 701075C DE 1938C0053961 DE1938C0053961 DE 1938C0053961 DE C0053961 D DEC0053961 D DE C0053961D DE 701075 C DE701075 C DE 701075C
Authority
DE
Germany
Prior art keywords
water
parts
condensation products
production
soluble condensation
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
DE1938C0053961
Other languages
German (de)
Inventor
Dr Helmut Boehler
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.)
Chemische Fabrik Von Heyden AG
Original Assignee
Chemische Fabrik Von Heyden 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 Chemische Fabrik Von Heyden AG filed Critical Chemische Fabrik Von Heyden AG
Priority to DE1938C0053961 priority Critical patent/DE701075C/en
Application granted granted Critical
Publication of DE701075C publication Critical patent/DE701075C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/08Chemical tanning by organic agents
    • C14C3/18Chemical tanning by organic agents using polycondensation products or precursors thereof
    • C14C3/20Chemical tanning by organic agents using polycondensation products or precursors thereof sulfonated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung wasserlöslicher Kondensationsprodukte Es wurde gefunden, daß man durch Kondensation von Oxydiarylsulfonsäuren mit Formaldehyd bei Gegenwart von Naphthalin neue wasserlösliche Produkte erhält. Diese Stoffe besitzen eiweißfällende Eigenschaften. Sie können daher als Gerbstoffe Verwendung finden und liefern ein sehr volles, weiches, helles Leder. Auch in der Textilindustrie können sie als Reservierungsmittel und Beizen für basische Farbstoffe verwendet werden. Sie besitzen zugleich insekticide Eigenschaften und können daher z. B. als insekticide Imprägnierinmgsmittel für Textilien dienen. Ihre Anwendung geschieht entweder in Form der freien Säuren oder der Salze, wobei die Wasserstoffionenkonzentration je nach dem Verwendungszweck eingestellt werden kann.Process for the preparation of water-soluble condensation products Es it has been found that by condensing oxydiarylsulfonic acids with formaldehyde in the presence of naphthalene, new water-soluble products are obtained. These substances own protein precipitating properties. They can therefore be used as tanning agents and deliver a very full, soft, light-colored leather. Also in the textile industry they can be used as a reservation agent and stain for basic dyes will. They also have insecticidal properties and can therefore, for. B. as Insecticidal impregnating agents are used for textiles. Your application happens either in the form of the free acids or the salts, with the hydrogen ion concentration can be set according to the purpose.

Aus der britischen Patentschrift 457 185 ist es bekannt, Oxydiarylsulfonsäuren mit Formaldehyd zu kondensieren. Es entstehen dabei Produkte, die sich in ihrem Aufbau grundsätzlich von den hier beanspruchten Kondensationsprodukten unterscheiden. Das Naphthalin wird im vorliegenden Falle in das Kondensationsmolekül mit eingebaut, und es entsteht durch diese Reaktion vermutlich eine Naphthalin-i, 5-dioxyphenylbenzylsulfonsäure, während man nach dem bekannten Verfahren eine Dioxydiarylmethansulfonsäure gewinnt. Durch den Einbau des Naphthalixis erhält man nicht nur Gerbstoffe, die dem Leder eine größere Weichheit. und volleren Griff verleihen als ein Gerbstoff nach der britischen Patentschrift 457 185, sondern durch die Vergrößerung des Moleküls wird auch das Rendement des Leders beträchtlich erhöht. Beispiel i 17o Teile o-Oxydiphenyl werden mit i 2o Teilen Schwefelsäure 96%ig in der Wärme sulfoniert. Die Sulfonsäure wird mit 3o Teilen Wasser verdünnt; in die Mischung werden 6o Teile fein pulverisiertes Naphthalin unter gutem Umrühren eingetragen und nach und nach ioo Teile Formaldehyd 380`oig zugegeben. Unter vorsichtigem Erwärmen erfolgt die Kondensation, bis eine Probe beim Verdünnen mit Wasser klar bleibt. Die Masse wird sodann mit 3oo Teilen Wasser verdünnt und mit Natronlauge anneutralisiert. Die saure Lösung besitzt ausgezeichnete Gerbkraft und gibt ein vollgriffiges, weiches und helles Leder. Beispiel z io2 Teile gechlortes p-Oxydiphenyl werden mit 85 Teilen konz. Schwefelsäure sulfoniert, mit 4.o Teilen Wasser verdünnt und nach Zugabe von 28g Naphthalin mit 4.o Teilen Formaldehyd :lo@.'oig bei 9o bis iio° kondensiert, mit weiteren .1o Teilen Wasser verdünnt und 6o bis 7o Teile volumprozentiger Natronlauge unter Kühlung hinzugegeben.From British patent specification 457 185 it is known to use oxydiarylsulfonic acids to condense with formaldehyde. Products are created that are in their Structure fundamentally differ from the condensation products claimed here. In the present case, the naphthalene is incorporated into the condensation molecule, and this reaction probably produces a naphthalene-i, 5-dioxyphenylbenzylsulfonic acid, while a dioxydiarylmethanesulfonic acid is obtained by the known process. The incorporation of the naphthalixis not only results in tannins that are inherent in the leather a greater softness. and give a fuller feel than a tanning agent after British Patent 457 185, but by enlarging the molecule it becomes the yield of the leather is also considerably increased. Example i 170 parts of o-oxydiphenyl are sulfonated with i 2o parts of 96% sulfuric acid in the heat. The sulfonic acid is diluted with 30 parts of water; be in the mix 6o parts finely powdered naphthalene entered with thorough stirring and gradually 100 parts of formaldehyde 380 oig added. The takes place with careful heating Condensation until a sample remains clear when diluted with water. The crowd will then diluted with 300 parts of water and neutralized with sodium hydroxide solution. The sour Solution has excellent tanning power and gives a full grip, soft and light leather. Example z 10 2 parts of chlorinated p-oxydiphenyl are combined with 85 parts conc. Sulfonic acid sulfonated, diluted with 4.o parts of water and, after adding 28g of naphthalene with 4o parts of formaldehyde: 10%. Oig condensed at 90 to 10 °, diluted with another .1o parts of water and 6o to 7o parts by volume sodium hydroxide solution added with cooling.

An Stelle von Oxydiphenyl kann man auch andere Diaryle, wie z. B. Oxyditolyle, Oxydinaphthyle, Naphthylphenole und deren Substitutionsprodukte, verwenden. Den Formalde= hy d kann man durch formaldehydabspaltende Mittel, wie z. B. Methylal, Methylenchlorid usw., ersetzen.Instead of oxydiphenyl, you can also use other diaryls, such as. B. Use oxyditolyls, oxydinaphthyls, naphthylphenols and their substitution products. The formaldehyde = hy d can be obtained by formaldehyde-releasing agents, such as. B. methylal, Replace methylene chloride, etc.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung wasserlöslicher Kondensationsprodukte, dadurch gekennzeichnet, daB man Sulfonsäuren von Oxydiarylen mit Formaldehyd oder solches abspaltenden Mitteln bei Gegenwart von Naphthalin bzw. Naphthalinabkömmlingen behandelt. PATENT CLAIM: Process for the preparation of water-soluble condensation products, characterized in that sulfonic acids of oxydiaryls are treated with formaldehyde or agents which split off such in the presence of naphthalene or naphthalene derivatives.
DE1938C0053961 1938-05-04 1938-05-04 Process for the production of water-soluble condensation products Expired DE701075C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938C0053961 DE701075C (en) 1938-05-04 1938-05-04 Process for the production of water-soluble condensation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938C0053961 DE701075C (en) 1938-05-04 1938-05-04 Process for the production of water-soluble condensation products

Publications (1)

Publication Number Publication Date
DE701075C true DE701075C (en) 1941-01-08

Family

ID=7027876

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938C0053961 Expired DE701075C (en) 1938-05-04 1938-05-04 Process for the production of water-soluble condensation products

Country Status (1)

Country Link
DE (1) DE701075C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047882A2 (en) * 1980-09-04 1982-03-24 Bayer Ag Dispersing compositions containing formaldehyde condensates
EP0073606A1 (en) * 1981-08-19 1983-03-09 Diamond Shamrock Chemicals Company Condensation products of aromatic sulphonic acids with formaldehyde

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047882A2 (en) * 1980-09-04 1982-03-24 Bayer Ag Dispersing compositions containing formaldehyde condensates
EP0047882A3 (en) * 1980-09-04 1982-06-09 Bayer Ag Formaldehyde condensates, their production, their use as dispersing agents and compositions containing them
EP0073606A1 (en) * 1981-08-19 1983-03-09 Diamond Shamrock Chemicals Company Condensation products of aromatic sulphonic acids with formaldehyde

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