FR1286947A - Optical brightening agents - Google Patents

Optical brightening agents

Info

Publication number
FR1286947A
FR1286947A FR853487A FR853487A FR1286947A FR 1286947 A FR1286947 A FR 1286947A FR 853487 A FR853487 A FR 853487A FR 853487 A FR853487 A FR 853487A FR 1286947 A FR1286947 A FR 1286947A
Authority
FR
France
Prior art keywords
brightening agents
optical brightening
optical
agents
brightening
Prior art date
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
FR853487A
Other languages
French (fr)
Inventor
Roderich Raue
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to FR853487A priority Critical patent/FR1286947A/en
Application granted granted Critical
Publication of FR1286947A publication Critical patent/FR1286947A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
    • C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
    • C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR853487A 1961-02-22 1961-02-22 Optical brightening agents Expired FR1286947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR853487A FR1286947A (en) 1961-02-22 1961-02-22 Optical brightening agents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR853487A FR1286947A (en) 1961-02-22 1961-02-22 Optical brightening agents

Publications (1)

Publication Number Publication Date
FR1286947A true FR1286947A (en) 1962-03-09

Family

ID=8749389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR853487A Expired FR1286947A (en) 1961-02-22 1961-02-22 Optical brightening agents

Country Status (1)

Country Link
FR (1) FR1286947A (en)

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