CH191140A - Method of making a polyvinyl compound. - Google Patents

Method of making a polyvinyl compound.

Info

Publication number
CH191140A
CH191140A CH191140DA CH191140A CH 191140 A CH191140 A CH 191140A CH 191140D A CH191140D A CH 191140DA CH 191140 A CH191140 A CH 191140A
Authority
CH
Switzerland
Prior art keywords
polyvinyl
polyvinyl alcohol
making
benzene
polyvinyl compound
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
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
Publication of CH191140A publication Critical patent/CH191140A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • C23C22/26—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also organic compounds
    • C23C22/27—Acids
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • C23C22/33—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12—Light metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

  

      Verfahren    zur Herstellung einer     Polyvinylverbindnng.       Im Hauptpatent ist     die    Herstellung eines  in organischen     Lösungsmitteln    löslichen Um  setzungsproduktes aus     Polyvinylalkohol    und       Formaldehyd    durch Umsetzung der beiden  Komponenten in Gegenwart eines organi  schen     Lösungsmittels        beschrieben.    Es ist im  Hauptpatent angegeben,     -dass    der     Polyvinyl-          alkohol    entweder als solcher oder in statu       nascendi,    d. h.

   im Augenblick seiner Ent  stehung aus einem     Polyvinylester,    angewen  det werden kann.  



  Es wurde nun gefunden,     @dass    in analoger  Weise durch Umsetzung von     Polyvinylalko-          hol    mit     Benzald.ehyd    in Gegenwart     eines          organischen        Lösungsmittels        ein    in organi  schen     Lösungsmitteln    lösliches Produkt er  halten werden kann. Auch in diesem Fall  kann man den     Polyvinylalkohol    in     statu          nascendi    anwenden.  



       Das    neue Produkt kommt für die Her  stellung von Lacken,     insbesondere        Elektro-          isolierlaeken    in Frage.    <I>Beispiele:</I>    1.     2;5    Gewichtsteile     Polyvinylalkohol     werden in einer Mischung von     150    Gewichts  teilen Benzol und 60     Gewichtsteilen        Benzal-          dehyd    und     1f2    Gewichtsteil     konzentrierter          Schwefelsäure    2,     Stunden    auf 80   erhitzt..

    Es tritt Kondensation zu einem in Benzol  und andern     organischen    Lösungsmitteln lös  lichen Produkt     ein.        Das    Benzol wird mit       Wasserdampf        abgeblasen.    Das im Vakuum  getrocknete farblose Produkt ist sehr     wäTme-          bestä.ndig    und löst sich in     Benzol,        Diogan     und     andern    organischen Lösungsmitteln.

           2..    In analoger     Weise;        wie    im     Beispiel    1  angegeben, kann man einen     Polyvinylalkohol     in     statu        nascendi    benutzen, indem man       Polyvinylaüetat    und     Benzaldehyd    in     ben-          zolischer    Lösung in Gegenwart     einer    anorga  nischen Säure aufeinander einwirken     lässt,

       wobei     Versesfung        des        Polyvinylacetats    und       gleichzeitige        Acetalisierung        eintritt.  



      Method for producing a polyvinyl compound. The main patent describes the production of a reaction product of polyvinyl alcohol and formaldehyde that is soluble in organic solvents by reacting the two components in the presence of an organic solvent. It is stated in the main patent that the polyvinyl alcohol either as such or in statu nascendi, i.e. H.

   at the moment of its emergence from a polyvinyl ester, can be used.



  It has now been found that in an analogous manner by reacting polyvinyl alcohol with benzaldehyde in the presence of an organic solvent, a product which is soluble in organic solvents can be obtained. In this case, too, the polyvinyl alcohol can be used in statu nascendi.



       The new product can be used for the manufacture of paints, especially electrical insulation sheets. <I> Examples: </I> 1. 2; 5 parts by weight of polyvinyl alcohol are heated to 80 for 2 hours in a mixture of 150 parts by weight of benzene and 60 parts by weight of benzaldehyde and 1f2 part by weight of concentrated sulfuric acid.

    Condensation occurs to form a product which is soluble in benzene and other organic solvents. The benzene is blown off with steam. The colorless product, dried in vacuo, is very heat-resistant and dissolves in benzene, diogan and other organic solvents.

           2 .. In an analogous way; As indicated in Example 1, a polyvinyl alcohol can be used in statu nascendi by allowing polyvinyl acetate and benzaldehyde to act on one another in a benzene solution in the presence of an inorganic acid,

       whereverification of the polyvinyl acetate and simultaneous acetalization occur.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer Poly- vinylverbindung, dadurch gekennzeichnet, dass man Polyvinylalkohol in Gegenwart eines organischen Lösungsmittels mit Benz- aldehy d umsetzt. Das entstehende Produkt ist in Wasser unlöslich, dagegen in organi schen Lösungsmitteln löslich. Das neue Produkt kommt für die Her stellung von Lacken, insbesondere Flektro- isolierlacken, in Frage. UNTERANSPRüCHE 1. PATENT CLAIM: Process for the production of a polyvinyl compound, characterized in that polyvinyl alcohol is reacted with benzaldehyde in the presence of an organic solvent. The resulting product is insoluble in water, but soluble in organic solvents. The new product can be used for the manufacture of varnishes, especially fleece insulating varnishes. SUBCLAIMS 1. Verfahren nach Patentanspruch. dadurch gekennzeichnet, dass man einen durch Verseifen von Polyvinylester entstehen den Polyvinylalkoliol in statu nascendi anwendet. @. Verfahren nach Patentanspruch und Un teranspruch 1, dadurch gekennzeichnet, dass man als Lösungsmittel Benzol ver wendet. Method according to claim. characterized in that the polyvinyl alcohol produced by saponifying polyvinyl ester is used in statu nascendi. @. Process according to patent claim and un terclaim 1, characterized in that the solvent used is benzene.
CH191140D 1940-08-03 1931-06-24 Method of making a polyvinyl compound. CH191140A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEI67576A DE745042C (en) 1940-08-03 1940-08-03 Surface protection of magnesium alloys
CH191140T 1940-11-19

Publications (1)

Publication Number Publication Date
CH191140A true CH191140A (en) 1937-05-31

Family

ID=5679153

Family Applications (4)

Application Number Title Priority Date Filing Date
CH191140D CH191140A (en) 1940-08-03 1931-06-24 Method of making a polyvinyl compound.
CH157937D CH157937A (en) 1940-08-03 1931-06-24 Method of making a polyvinyl compound.
CH227802D CH227802A (en) 1940-08-03 1941-10-09 Process for the production of protective layers on the surface of magnesium alloys.
CH226687D CH226687A (en) 1940-08-03 1941-11-17 Process for the preparation of methyl isocyanate.

Family Applications After (3)

Application Number Title Priority Date Filing Date
CH157937D CH157937A (en) 1940-08-03 1931-06-24 Method of making a polyvinyl compound.
CH227802D CH227802A (en) 1940-08-03 1941-10-09 Process for the production of protective layers on the surface of magnesium alloys.
CH226687D CH226687A (en) 1940-08-03 1941-11-17 Process for the preparation of methyl isocyanate.

Country Status (5)

Country Link
BE (1) BE443063A (en)
CH (4) CH191140A (en)
DE (1) DE745042C (en)
FR (1) FR875991A (en)
NL (1) NL58899C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767680C (en) * 1937-04-30 1953-03-30 Aeg Process for applying a layer of polymerized plastics to bare or insulated conductors
DE953274C (en) * 1937-08-31 1956-11-29 Aeg Method for the electrical insulation of a conductor
GB1179021A (en) * 1966-03-11 1970-01-28 Kobe Steel Ltd Electrolytic Surface Treatment of Metals
US3484347A (en) * 1967-08-29 1969-12-16 Nippon Kokan Kk Method of anti-corrosive treatment on the surface of iron and steel materials
US5080733A (en) * 1990-04-09 1992-01-14 Macdermid, Incorporated Method for producing chromate conversion coatings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH140438A (en) * 1928-02-02 1930-06-15 Ig Farbenindustrie Ag Process for improving the corrosion resistance of fittings made of magnesium alloys.
GB313901A (en) * 1928-03-19 1929-06-19 Otto Sprenger Patentverwertung Improvements in processes for producing coatings on metal articles
CH145466A (en) * 1928-07-25 1931-02-28 Ig Farbenindustrie Ag Process to protect fittings made of magnesium alloys against corrosion by aqueous liquids.
BE364507A (en) * 1928-11-10
GB331853A (en) * 1929-04-08 1930-07-08 Hubert Sutton Improvements in or relating to preventing corrosion of metallic surfaces
GB353415A (en) * 1930-04-14 1931-07-14 Hubert Sutton Improvements in or relating to preventing corrosion of metallic surfaces
US1888457A (en) * 1931-05-08 1932-11-22 Dow Chemical Co Method of treating magnesium and product obtained thereby
FR830839A (en) * 1937-12-15 1938-08-10 Trefileries Laminoirs Havre Sa Process for protecting magnesium and its alloys against corrosion

Also Published As

Publication number Publication date
BE443063A (en) 1941-11-29
NL58899C (en) 1946-09-16
CH226687A (en) 1943-04-30
FR875991A (en) 1942-10-09
CH227802A (en) 1943-07-15
CH157937A (en) 1932-10-31
DE745042C (en) 1944-02-24

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