FR1159273A - Brightening agents - Google Patents

Brightening agents

Info

Publication number
FR1159273A
FR1159273A FR1159273DA FR1159273A FR 1159273 A FR1159273 A FR 1159273A FR 1159273D A FR1159273D A FR 1159273DA FR 1159273 A FR1159273 A FR 1159273A
Authority
FR
France
Prior art keywords
brightening agents
brightening
agents
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
Other languages
French (fr)
Inventor
Roderich Raue
Werner Mueller
Josef Link
Otto Weber
Volkmar Weber
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
Application granted granted Critical
Publication of FR1159273A publication Critical patent/FR1159273A/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
    • C07D311/78—Ring systems having three or more relevant rings
    • C07D311/92—Naphthopyrans; Hydrogenated naphthopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR1159273D 1955-09-28 1956-09-25 Brightening agents Expired FR1159273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1159273X 1955-09-28

Publications (1)

Publication Number Publication Date
FR1159273A true FR1159273A (en) 1958-06-25

Family

ID=7728224

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1159273D Expired FR1159273A (en) 1955-09-28 1956-09-25 Brightening agents

Country Status (1)

Country Link
FR (1) FR1159273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222014B (en) * 1960-02-05 1966-08-04 Ciba Geigy Use of coumarin derivatives as optical brighteners

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222014B (en) * 1960-02-05 1966-08-04 Ciba Geigy Use of coumarin derivatives as optical brighteners

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