FR2253004A1 - - Google Patents

Info

Publication number
FR2253004A1
FR2253004A1 FR7342835A FR7342835A FR2253004A1 FR 2253004 A1 FR2253004 A1 FR 2253004A1 FR 7342835 A FR7342835 A FR 7342835A FR 7342835 A FR7342835 A FR 7342835A FR 2253004 A1 FR2253004 A1 FR 2253004A1
Authority
FR
France
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.)
Granted
Application number
FR7342835A
Other languages
French (fr)
Other versions
FR2253004B1 (OSRAM
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 JP47058191A priority Critical patent/JPS5239007B2/ja
Priority to GB5492273A priority patent/GB1438989A/en
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to FR7342835A priority patent/FR2253004B1/fr
Priority to DE19732359823 priority patent/DE2359823C3/de
Priority claimed from DE19732359823 external-priority patent/DE2359823C3/de
Publication of FR2253004A1 publication Critical patent/FR2253004A1/fr
Application granted granted Critical
Publication of FR2253004B1 publication Critical patent/FR2253004B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/783—Separation; Purification; Stabilisation; Use of additives by gas-liquid treatment, e.g. by gas-liquid absorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7342835A 1972-06-13 1973-11-30 Expired FR2253004B1 (OSRAM)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP47058191A JPS5239007B2 (OSRAM) 1972-06-13 1972-06-13
GB5492273A GB1438989A (en) 1972-06-13 1973-11-27 Process for the purification of formaldehyde
FR7342835A FR2253004B1 (OSRAM) 1972-06-13 1973-11-30
DE19732359823 DE2359823C3 (de) 1973-11-30 Verfahren zur Herstellung von reinem Formaldehyd

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP47058191A JPS5239007B2 (OSRAM) 1972-06-13 1972-06-13
GB5492273A GB1438989A (en) 1972-06-13 1973-11-27 Process for the purification of formaldehyde
FR7342835A FR2253004B1 (OSRAM) 1972-06-13 1973-11-30
DE19732359823 DE2359823C3 (de) 1973-11-30 Verfahren zur Herstellung von reinem Formaldehyd

Publications (2)

Publication Number Publication Date
FR2253004A1 true FR2253004A1 (OSRAM) 1975-06-27
FR2253004B1 FR2253004B1 (OSRAM) 1977-06-10

Family

ID=27431770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342835A Expired FR2253004B1 (OSRAM) 1972-06-13 1973-11-30

Country Status (3)

Country Link
JP (1) JPS5239007B2 (OSRAM)
FR (1) FR2253004B1 (OSRAM)
GB (1) GB1438989A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531289U (ja) * 1991-09-30 1993-04-23 オムロン株式会社 数字表示器の取付け構造

Also Published As

Publication number Publication date
GB1438989A (en) 1976-06-09
DE2359823B2 (de) 1975-11-06
DE2359823A1 (de) 1975-06-12
JPS5239007B2 (OSRAM) 1977-10-03
FR2253004B1 (OSRAM) 1977-06-10
JPS4918817A (OSRAM) 1974-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse