FR1574843A - - Google Patents

Info

Publication number
FR1574843A
FR1574843A FR1574843DA FR1574843A FR 1574843 A FR1574843 A FR 1574843A FR 1574843D A FR1574843D A FR 1574843DA FR 1574843 A FR1574843 A FR 1574843A
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.)
Expired
Application number
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR1574843A publication Critical patent/FR1574843A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
FR1574843D 1968-05-09 1968-05-09 Expired FR1574843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR151198 1968-05-09

Publications (1)

Publication Number Publication Date
FR1574843A true FR1574843A (en) 1969-07-18

Family

ID=8650038

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1574843D Expired FR1574843A (en) 1968-05-09 1968-05-09

Country Status (3)

Country Link
DE (1) DE1923845A1 (en)
FR (1) FR1574843A (en)
GB (1) GB1226695A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54106599A (en) * 1978-02-09 1979-08-21 Hitachi Chem Co Ltd Preparation of polyamide intermediate for semiconductor processing
JPH0390076A (en) * 1989-09-01 1991-04-16 Hitachi Ltd Acid anhydride complex, its production, composition containing the complex, etc.

Also Published As

Publication number Publication date
DE1923845A1 (en) 1969-11-20
GB1226695A (en) 1971-03-31

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Legal Events

Date Code Title Description
ST Notification of lapse