CH226687A - Process for the preparation of methyl isocyanate. - Google Patents

Process for the preparation of methyl isocyanate.

Info

Publication number
CH226687A
CH226687A CH226687DA CH226687A CH 226687 A CH226687 A CH 226687A CH 226687D A CH226687D A CH 226687DA CH 226687 A CH226687 A CH 226687A
Authority
CH
Switzerland
Prior art keywords
preparation
methyl isocyanate
isocyanate
methyl
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 CH226687A publication Critical patent/CH226687A/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)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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)
CH226687D 1940-08-03 1941-11-17 Process for the preparation of methyl isocyanate. CH226687A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH226687A true CH226687A (en) 1943-04-30

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 Before (3)

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.

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
CH227802A (en) 1943-07-15
BE443063A (en) 1941-11-29
DE745042C (en) 1944-02-24
NL58899C (en) 1946-09-16
FR875991A (en) 1942-10-09
CH157937A (en) 1932-10-31
CH191140A (en) 1937-05-31

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