NL56345C - - Google Patents

Info

Publication number
NL56345C
NL56345C NL80388A NL80388A NL56345C NL 56345 C NL56345 C NL 56345C NL 80388 A NL80388 A NL 80388A NL 80388 A NL80388 A NL 80388A NL 56345 C NL56345 C NL 56345C
Authority
NL
Netherlands
Application number
NL80388A
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 filed Critical
Priority to NL80388A priority Critical patent/NL56345C/xx
Priority to BE421443D priority patent/BE421443A/fr
Priority to FR821880D priority patent/FR821880A/en
Priority to FR51535D priority patent/FR51535E/en
Application granted granted Critical
Publication of NL56345C publication Critical patent/NL56345C/xx
Priority to NL87420A priority patent/NL60989C/xx

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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/42—Aqueous compositions containing a dispersed water-immiscible liquid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
NL80388A 1936-12-11 1936-12-11 NL56345C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL80388A NL56345C (en) 1936-12-11 1936-12-11
BE421443D BE421443A (en) 1936-12-11 1937-05-07
FR821880D FR821880A (en) 1936-12-11 1937-05-14 Process and apparatus for the manufacture of urea from carbon dioxide and ammonia
FR51535D FR51535E (en) 1936-12-11 1941-05-02 Process and apparatus for the manufacture of urea from carbon dioxide and ammonia
NL87420A NL60989C (en) 1936-12-11 1945-09-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL80388A NL56345C (en) 1936-12-11 1936-12-11

Publications (1)

Publication Number Publication Date
NL56345C true NL56345C (en) 1944-06-15

Family

ID=41128280

Family Applications (2)

Application Number Title Priority Date Filing Date
NL80388A NL56345C (en) 1936-12-11 1936-12-11
NL87420A NL60989C (en) 1936-12-11 1945-09-15

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL87420A NL60989C (en) 1936-12-11 1945-09-15

Country Status (3)

Country Link
BE (1) BE421443A (en)
FR (2) FR821880A (en)
NL (2) NL56345C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH323315A (en) * 1949-09-16 1957-07-31 Toyo Koatsu Ind Inc Process for the synthesis of urea.
DE4438456C2 (en) * 1994-10-28 2002-07-11 Deutsch Zentr Luft & Raumfahrt Friction unit

Also Published As

Publication number Publication date
BE421443A (en) 1937-06-30
FR51535E (en) 1942-10-05
FR821880A (en) 1937-12-15
NL60989C (en) 1948-04-15

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