CH371437A - Process for the production of new epoxidized acetals - Google Patents

Process for the production of new epoxidized acetals

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Publication number
CH371437A
CH371437A CH6210358A CH6210358A CH371437A CH 371437 A CH371437 A CH 371437A CH 6210358 A CH6210358 A CH 6210358A CH 6210358 A CH6210358 A CH 6210358A CH 371437 A CH371437 A CH 371437A
Authority
CH
Switzerland
Prior art keywords
formula
acetals
new
production
parts
Prior art date
Application number
CH6210358A
Other languages
German (de)
Inventor
Hans Prof Dr Batzer
Erwin Dr Nikles
Otto Dr Ernst
Daniel Dr Porret
Original Assignee
Ciba Geigy
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
Priority to NL110644D priority Critical patent/NL110644C/xx
Priority to BE580905D priority patent/BE580905A/xx
Priority to NL241462D priority patent/NL241462A/xx
Priority to NL300893D priority patent/NL300893A/xx
Priority to NL127796D priority patent/NL127796C/xx
Priority to CH6210358A priority patent/CH371437A/en
Application filed by Ciba Geigy filed Critical Ciba Geigy
Priority to GB2500059A priority patent/GB870696A/en
Priority to US828472A priority patent/US3538115A/en
Priority to DE19591418485 priority patent/DE1418485C3/en
Priority to FR800756A priority patent/FR1233231A/en
Priority to ES0250983A priority patent/ES250983A1/en
Publication of CH371437A publication Critical patent/CH371437A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D407/00Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00
    • C07D407/02Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings
    • C07D407/04Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group C07D405/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07HSUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H17/00Compounds containing heterocyclic radicals directly attached to hetero atoms of saccharide radicals
    • C07H17/04Heterocyclic radicals containing only oxygen as ring hetero atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B11/00Preparation of cellulose ethers
    • C08B11/02Alkyl or cycloalkyl ethers
    • C08B11/04Alkyl or cycloalkyl ethers with substituted hydrocarbon radicals
    • 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
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/22Di-epoxy compounds
    • C08G59/26Di-epoxy compounds heterocyclic
    • 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
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/32Epoxy compounds containing three or more epoxy groups
    • C08G59/3236Heterocylic compounds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biotechnology (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren     zur    Herstellung von neuen     epoxydierten    Acetaten         Gegenstand:    der     vorliegenden    Erfindung ist     ein     Verfahren zur     Herstellung    von neuen     epoxydierten     Acetaten der Formel  
EMI0001.0008     
    worin     R1,        R,        R3,,    R4,     R5,        RE,        R7,

          R8    und     R9        für          Wasserstoff    oder einwertige     Substituenten,    wie Halo  gene oder     aliphatische,        cycloaliphatische,        aralipha-          tische    oder aromatische     Kohlenwasserstoffreste    ste  hen, wobei     R1    und     R5    zusammen auch     einen    zwei  wertigen     Substituenten,    wie eine     Methylengruppe,    be-    deuten     können,

      A den     durch        Abtrennung    von vier  oder sechs     Hydroxylgruppen    aus     einem        Polyalkohol     mit vier bis     sechs        Hydroxylgruppen        entstandenen    Rest       darstellt,    und n 2 oder 3     bedeutet,    dadurch gekenn  zeichnet,     @dass    man Acetate der     Formel     
EMI0001.0043     
    mit     epoxydierenden        Mitteln        behandelt.     



  Die neuen Acetate     der    Formel     (1'I)        können    erhal  ten werden, indem man einen     Aldehyd    der     Formel     
EMI0001.0052     
         bzw.    Gemische aus 2 oder mehreren solchen     Alde-          hyden    mit     Polyalkoholen    mit 4 bis 6 Hydroxyl-         gruppen,        vorzugsweise        in    Gegenwart     einer    sauer rea  gierenden     Verbindung,    z.

   B.     Salzsäure    oder p-Toluol-           sulfosäure,        kondensiert.    Je nachdem, ob man von  einem     einheitlichen    Aldehyd der     Formel        (III)    oder  von Gemischen solcher Aldehyde ausgeht, werden  symmetrisch gebaute     Acetale    oder Gemische aus sym  metrisch     gebauten    und aus unsymmetrisch,     gebauten          Acetalen        erhalten.     



  Die Aldehyde der Formel     (III)        sind    Derivate des       Tetrahydrobenzols.    Genannt     seien:    A-Tetrahydro-         benzaldehyd,        6-Methyl-d-        tetrahydrobenzaldehyd    und       2,5-Endomethylen-A-tetrahydrobenzaldehyd.    Unter  den als Ausgangsstoffe     verwendeten        Polyalkoholen     seien genannt:

       Erythrit,        Xylit,        Arabit,        Sorbit,        Mannit,          Dulcit    und insbesondere     Penroaerythrit.     



  Besonders leicht     zugänglich    sind die von     Penta-          erythrit        abgeleiteten        Acetale    der Formel  
EMI0002.0033     
    worin     R8    und     Rg    für Wasserstoff oder niedere     Alkyl-          reste        stehen.     



  Die erfindungsgemässe     Epoxydierung    der C = C  Doppelbindungen     in,    den     Cyclohexenringen    erfolgt    z. B. mit     Hilfe    von     Peressigsäure        oder        Perbenzoe-          säure.     



  Besonders leicht zugänglich sind die     Diepoxydver-          bindungen    der Formel  
EMI0002.0049     
    worin     R8    und     R8'    für Wasserstoff oder niedere     Alkyl-          reste        stehen.    Diese     Epoxyde        stellen        helle,        schmelzbare     Harze dar, die sich mit geeigneten     Härtern,    wie     Di-          carbonsäureanhydriden,

      in klare     und        helle    gehärtete  Produkte     überführen    lassen.  



  Die erfindungsgemäss     hergestellten        eiloxydierten          Acetale    lassen sich     durch    Zusatz der üblichen     Härter          für        Epoxydverbindu    ragen     analog    wie andere poly  funktionelle     Epoxydlverbindungen    bzw.     Epoxydharze     vernetzen bzw. aushärten. Als solche Härter kommen  basische oder insbesondere     saure        Verbindungen    in  Frage.

   Als     geeignet    haben sich     erwiesen:    Amine oder       Amide,    wie     .aliphatische    und aromatische, primäre,  sekundäre und     tertiäre        Amine,    z. B.

   Mono-,     Di-    und       Tributylamine,    p     Phenylendiamin,        Äihylendiamin,          N,N-Diäthyl-äthylendiam-in,        Diäthylentriamin,        Tri-          äthylentetramin,        Tetraäthylenpentamin,        Trimethyl          amin,        Diäthylamin,        Triäthanolamin,        Mannich-Basen,          Piperidin,        Piperazin,

          Guanidin    und     Guanidinderivate,     wie     Diphenylguanidin    und     Dicyandiamid,        Anilinform-          aldehydharze,    Harnstoff     -Formaldehydharze,        Mel-          amin-Formaldehydharze,    Polymere von     Aminostyro-          len,    Polyamide, z.

   B. solche aus     aliphatischen     Polyaminen und     di-    oder     trimerisierten,        ungesättigten          Fettsäuren,        Isocyanate,        Isothiocyanate,        mehrwertige          Phenole,    z.

   B.     Resorcin    und     Hydrochinon,        Chinon,          Phenolaldehydharze,        ölmodifizierte        Phenolaldehyd@       harze,     Umsetzungsprodukte    von     Aluminiumalkohol-          aten    bzw.     -phenolaten    mit     tautomer    reagierenden Ver  bindungen vom Typ     Acetessigester,        Fried'el-Crafts-          Katalysatoren,    z.

   B.     AIC13,        SbCIS,        SnC14,        FeC13,          Zncl2,        BF3    und deren Komplexe mit organischen  Verbindungen oder Phosphorsäure. Bevorzugt ver  wendet man als Härter mehrbasische     Carbonsäuren     und ihre     Anhydride,    z. B.  



       Phthalsäureanhydrid,          Methylendomethylentetrahydrophthalsäurean.          hyd'rid,          Dodecenylbernstein5äureanhydrid,          Hexahyd@rophthalsäureanhydrid,          Hexachloroendomethylentetrahydrophthalsäure-          anhydrid    oder       Endomethylentetrahydrophthalsäureanhydrid     oder deren Gemische;       Malein-    oder     Bernsteinsäureanhydrid,    wobei man  gegebenenfalls Beschleuniger, wie     tertiäre    Amine mit  verwendet.  



  Die     härtbaren        Epoxydverbindungen    bzw. deren  Mischungen mit     Härtern    können vor der     Härtung    in  irgendeiner Phase mit     Füllmitteln,    Weichmachern,  farbgebenden Stoffen usw. versetzt werden. Als  Streck- und     Füllmittel    können beispielsweise Glas-      fasern, Glimmer, Quarzmehl,     Cellulose,    Kaolin, fein  verteilte Kieselsäure     ( AEROSIL     Markenprodukt)  oder Metallpulver verwendet werden.  



  Die Gemische aus den     genannten        Epoxydverbin-          dungen    und     Härtern    können im     ungefüllten    oder     -ge-          füllten    Zustand sowie in Form von Lösungen oder  Emulsionen als     Textilhilfsmittel,        Laminierharze,    An  strichmittel, Lacke, Tauchharze, Giessharze, Streich-,       Ausfüll-    und     Spachtelmassen,    Klebemittel und der  gleichen sowie zur Herstellung     solcher        Mittel    dienen.  



  Im nachfolgenden Beispiel bedeuten Teile Ge  wichtsteile, Prozente Gewichtsprozente, und die Tem  peraturen sind in Celsiusgraden angegeben.    <I>Beispiel</I>  <I>a)</I>     Di-aeetal   <I>aus</I>     d3-Tetrahydrobenzaldehyd     <I>und</I>     Pentaerythrit     13,6 Teile     Pentaerythrit    werden mit 24 Teilen       910/0        J3-Tetrahydrobenzaldehyd        in        Gegenwart    von  0,

  4 Teilen     p-Toluolsulfosäure    in 100     Volumteilen     Benzol in einer     Umlaufdestillierapparatur    bis zum       Aufhören    der     Wasserabscheidung    erhitzt. Nach dem  Erkalten werden 0,5 Teile     in    20 Teilen Alkohol dazu;  gegeben und mit 25 Teilen Wasser gewaschen. Nach  dem Trocknen über     Kaliumcarbonat    wird das       Lösungsmittel    verdampft. Es     hinterblei'ben    32 Teile       Di-(43-tetrahydrobenzal)-pentaerythrit.        Schmelzpunkt     nach Kristallisation aus Methanol 96 bis 97 .  



  Analyse:     C10Hza04          Berechnet:        C        71,22%i,        H        8,810/0,    O     19,970/0.          Gefunden:

          C        7l,510/0,        H        8,73%,    O     19,96%.     <I>b)</I>     Epoxydierung   <I>von</I>     Di-(43-tetrahydrobenzal)-          pentaerythrit     22 Teile     Di-(43-tetra@hydrobenzal)

  -pentaerythrit     werden in 130 Volumenteilen Benzol gelöst und mit  2 Teilen wasserfreiem     Natriumacetat        versetzt.    Bei       20        bis        30         lässt        man        in        40        Minuten        41        Teile        38,8%          Peressigsäure        zutropfen,    wobei sich eine     zweite        flüs-          sige    Phase bildet.

       Nachdem    weitere 6 Stunden     kräftig     gerührt     worden        isst    und sich das Gemisch auf 22   abgekühlt hat, sind     95,1/9    der     Theorie        Pereissmgsäure     verbraucht worden. Die untere Schicht wird ab  getrennt und die Lösung in der Kälte mit je zweimal  50 Teilen Wasser, 2-n Soda und wieder Wasser ge  waschen. Nach der Trocknung über Natriumsulfat  wird das Benzol im Vakuum vertrieben, wobei    24 Teile     Epoxyd    erhalten werden. Das Produkt     kri-          stallisiert    langsam.  



  Zur     Epoxydbestimmung    wird eine Probe von  1,50g in 30     ml        n-Propanol    gelöst     und    in der     Siede-          hitze    in     Gegenwart    von 5 ml     gesättigter        Kaliumjodid-          lösung    auf bleibende Gelbfärbung von     Bromphenal-          blau        titriert.    Verbrauch: 6,90     ml    1-n     HCl    =     810/a    der  Theorie.



  Process for the preparation of new epoxidized acetates Subject: The present invention is a process for the preparation of new epoxidized acetates of the formula
EMI0001.0008
    wherein R1, R, R3 ,, R4, R5, RE, R7,

          R8 and R9 represent hydrogen or monovalent substituents such as halogens or aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radicals, where R1 and R5 together can also mean a divalent substituent such as a methylene group,

      A represents the radical formed by the removal of four or six hydroxyl groups from a polyalcohol with four to six hydroxyl groups, and n denotes 2 or 3, characterized in that acetates of the formula
EMI0001.0043
    treated with epoxidizing agents.



  The new acetates of the formula (1'I) can be obtained by adding an aldehyde of the formula
EMI0001.0052
         or mixtures of 2 or more such aldehydes with polyalcohols having 4 to 6 hydroxyl groups, preferably in the presence of an acidic compound, e.g.

   B. hydrochloric acid or p-toluenesulfonic acid, condensed. Depending on whether one starts from a uniform aldehyde of the formula (III) or from mixtures of such aldehydes, symmetrically constructed acetals or mixtures of symmetrically constructed and asymmetrically constructed acetals are obtained.



  The aldehydes of the formula (III) are derivatives of tetrahydrobenzene. The following may be mentioned: A-tetrahydrobenzaldehyde, 6-methyl-d-tetrahydrobenzaldehyde and 2,5-endomethylene-A-tetrahydrobenzaldehyde. The following polyalcohols are used as starting materials:

       Erythritol, xylitol, arabitol, sorbitol, mannitol, dulcitol and especially penroaerythritol.



  The acetals of the formula derived from pentaerythritol are particularly easily accessible
EMI0002.0033
    where R8 and Rg are hydrogen or lower alkyl radicals.



  The inventive epoxidation of the C = C double bonds in the cyclohexene rings takes place, for. B. with the help of peracetic acid or perbenzoic acid.



  The diepoxide compounds of the formula are particularly easily accessible
EMI0002.0049
    wherein R8 and R8 'are hydrogen or lower alkyl radicals. These epoxides are light-colored, meltable resins that can be hardened with suitable hardeners such as dicarboxylic acid anhydrides,

      can be converted into clear and light-colored hardened products.



  The egg-oxidized acetals produced according to the invention can be crosslinked or cured by adding the usual hardeners for epoxy compounds in a manner analogous to other polyfunctional epoxy compounds or epoxy resins. Basic or, in particular, acidic compounds are suitable as such hardeners.

   The following have proven suitable: amines or amides, such as .aliphatic and aromatic, primary, secondary and tertiary amines, e.g. B.

   Mono-, di- and tributylamines, p phenylenediamine, ethylenediamine, N, N-diethylethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, trimethylamine, diethylamine, triethanolamine, Mannich bases, piperidine, piperazine,

          Guanidine and guanidine derivatives, such as diphenylguanidine and dicyandiamide, aniline-formaldehyde resins, urea-formaldehyde resins, melamine-formaldehyde resins, polymers of aminostyrene, polyamides, e.g.

   B. those from aliphatic polyamines and di- or trimerized, unsaturated fatty acids, isocyanates, isothiocyanates, polyhydric phenols, eg.

   B. resorcinol and hydroquinone, quinone, phenolaldehyde resins, oil-modified phenolaldehyde @ resins, reaction products of aluminum alcohol aten or phenolates with tautomeric compounds of the acetoacetic ester type, Fried'el-Crafts catalysts, z.

   B. AIC13, SbCIS, SnC14, FeC13, Zncl2, BF3 and their complexes with organic compounds or phosphoric acid. It is preferred to use polybasic carboxylic acids and their anhydrides as hardeners, e.g. B.



       Phthalic anhydride, methylendomethylenetetrahydrophthalic an. hydride, dodecenylsuccinic anhydride, hexahydrophthalic anhydride, hexachloroendomethylenetetrahydrophthalic anhydride or endomethylenetetrahydrophthalic anhydride or mixtures thereof; Maleic or succinic anhydride, with accelerators such as tertiary amines being used if necessary.



  The curable epoxy compounds or their mixtures with hardeners can be mixed with fillers, plasticizers, coloring substances etc. in any phase prior to hardening. For example, glass fibers, mica, quartz powder, cellulose, kaolin, finely divided silica (AEROSIL branded product) or metal powder can be used as extenders and fillers.



  The mixtures of the epoxy compounds and hardeners mentioned can be used in the unfilled or -filled state and in the form of solutions or emulsions as textile auxiliaries, laminating resins, paints, varnishes, dipping resins, casting resins, coating, filling and leveling compounds, adhesives and serve the same as well as for the production of such means.



  In the following example, parts are parts by weight, percentages are percentages by weight, and the temperatures are given in degrees Celsius. <I> Example </I> <I> a) </I> Di-aeetal <I> from </I> d3-tetrahydrobenzaldehyde <I> and </I> pentaerythritol 13.6 parts of pentaerythritol are combined with 24 parts of 910 / 0 J3-tetrahydrobenzaldehyde in the presence of 0,

  4 parts of p-toluenesulfonic acid in 100 parts by volume of benzene were heated in a circulating distillation apparatus until the separation of water had ceased. After cooling, 0.5 parts in 20 parts of alcohol are added; given and washed with 25 parts of water. After drying over potassium carbonate, the solvent is evaporated. 32 parts of di- (43-tetrahydrobenzal) pentaerythritol remained behind. Melting point after crystallization from methanol 96 to 97.



  Analysis: C10Hza04 Calculated: C 71.22% i, H 8.810 / 0, O 19.970 / 0. Found:

          C 7l, 510/0, H 8.73%, O 19.96%. <I> b) </I> Epoxidation <I> of </I> di- (43-tetrahydrobenzal) - pentaerythritol 22 parts of di- (43-tetra @ hydrobenzal)

  pentaerythritol are dissolved in 130 parts by volume of benzene and mixed with 2 parts of anhydrous sodium acetate. At 20 to 30, 41 parts of 38.8% peracetic acid are added dropwise in 40 minutes, a second liquid phase being formed.

       After a further 6 hours of vigorous eating and the mixture had cooled to 22, 95.1 / 9 of the theory of Pereissmgsäure have been consumed. The lower layer is separated off and the solution is washed in the cold with two times 50 parts of water, 2N soda and again water. After drying over sodium sulfate, the benzene is driven off in vacuo, 24 parts of epoxide being obtained. The product slowly crystallizes.



  To determine the epoxide, a 1.50 g sample is dissolved in 30 ml of n-propanol and titrated at the boiling point in the presence of 5 ml of saturated potassium iodide solution for a permanent yellow coloration of bromophenal blue. Consumption: 6.90 ml of 1-n HCl = 810 / a of theory.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von epoxydierten Ace- talen der Formel EMI0003.0100 worin R1, R2, R3, R4, R5, R0, R7, R8 und R, für Wasserstoff oder einwertige Substituenten ,stehen, PATENT CLAIM Process for the production of epoxidized acetals of the formula EMI0003.0100 wherein R1, R2, R3, R4, R5, R0, R7, R8 and R, represent hydrogen or monovalent substituents, wo bei R1 und R5 zusammen auch einen zweiwertigen Substituenten bedeuten können, A den durch Ab trennung von vier oder sechs Hydroxylgruppen aus einem Polyalkohol mit vier bis sechs Hydroxylgruppen entstandenen Rest darstellt und n 2 oder 3 bedeutet, dadurch: where R1 and R5 together can also mean a divalent substituent, A represents the radical formed by separation of four or six hydroxyl groups from a polyalcohol with four to six hydroxyl groups and n means 2 or 3, thereby: gekennzeichnet, dass man Acetale der Formel EMI0003.0127 mit epoxydierenden Mitteln behandelt. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch: characterized by having acetals of the formula EMI0003.0127 treated with epoxidizing agents. SUBClaims 1. Method according to claim: zur Herstellung von neuen diepoxydierten Acetalen der Formel EMI0003.0133 worin R8 und R8 für Wasserstoff oder niedere Alkylreste stehen, dadurch gekennzeichnet, dass man Ace- tale der Formel EMI0004.0001 mit epoxydierenden Mitteln behandelt. for the production of new diepoxidized acetals of the formula EMI0003.0133 wherein R8 and R8 are hydrogen or lower alkyl radicals, characterized in that acetals of the formula EMI0004.0001 treated with epoxidizing agents. - 2. Verfahren nach Patentanspruch und Unteranspruch 1 zur Herstellung des neuen Diepoxyds der Formel EMI0004.0009 dadurch gekennzeichnet, dass man Di-(43 tetrahydrobenzal)-pentaerythrit mit epoxydierenden Mitteln be handelt. - 2. Process according to claim and dependent claim 1 for the preparation of the new diepoxide of the formula EMI0004.0009 characterized in that di- (43 tetrahydrobenzal) pentaerythritol is treated with epoxidizing agents.
CH6210358A 1958-07-23 1958-07-23 Process for the production of new epoxidized acetals CH371437A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
BE580905D BE580905A (en) 1958-07-23
NL241462D NL241462A (en) 1958-07-23
NL300893D NL300893A (en) 1958-07-23
NL127796D NL127796C (en) 1958-07-23
NL110644D NL110644C (en) 1958-07-23
CH6210358A CH371437A (en) 1958-07-23 1958-07-23 Process for the production of new epoxidized acetals
GB2500059A GB870696A (en) 1958-07-23 1959-07-21 Epoxy acetals
US828472A US3538115A (en) 1958-07-23 1959-07-21 Epoxidized acetals delta**3-tetrahydrobenz-aldehyde and polyalcohols
DE19591418485 DE1418485C3 (en) 1958-07-23 1959-07-22 Epoxidized cyclic acetals and processes for their preparation
FR800756A FR1233231A (en) 1958-07-23 1959-07-22 New epoxidized aromatic acetals and process for their preparation
ES0250983A ES250983A1 (en) 1958-07-23 1959-07-22 Epoxy acetals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6210358A CH371437A (en) 1958-07-23 1958-07-23 Process for the production of new epoxidized acetals

Publications (1)

Publication Number Publication Date
CH371437A true CH371437A (en) 1963-08-31

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ID=4524083

Family Applications (1)

Application Number Title Priority Date Filing Date
CH6210358A CH371437A (en) 1958-07-23 1958-07-23 Process for the production of new epoxidized acetals

Country Status (1)

Country Link
CH (1) CH371437A (en)

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