CH308268A - Process for the preparation of an optical brightening agent. - Google Patents

Process for the preparation of an optical brightening agent.

Info

Publication number
CH308268A
CH308268A CH308268DA CH308268A CH 308268 A CH308268 A CH 308268A CH 308268D A CH308268D A CH 308268DA CH 308268 A CH308268 A CH 308268A
Authority
CH
Switzerland
Prior art keywords
preparation
brightening agent
optical brightening
optical
agent
Prior art date
Application number
Other languages
German (de)
Inventor
Ag J R Geigy
Original Assignee
Ag J R Geigy
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 Ag J R Geigy filed Critical Ag J R Geigy
Publication of CH308268A publication Critical patent/CH308268A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
    • C07D263/62—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/04—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups one >CH- group, e.g. cyanines, isocyanines, pseudocyanines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Coloring (AREA)
CH308268D 1952-05-08 1952-05-08 Process for the preparation of an optical brightening agent. CH308268A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH736452X 1952-05-08

Publications (1)

Publication Number Publication Date
CH308268A true CH308268A (en) 1955-07-15

Family

ID=4532770

Family Applications (1)

Application Number Title Priority Date Filing Date
CH308268D CH308268A (en) 1952-05-08 1952-05-08 Process for the preparation of an optical brightening agent.

Country Status (4)

Country Link
CH (1) CH308268A (en)
DE (1) DE1010490B (en)
FR (1) FR1084209A (en)
GB (1) GB736452A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746569C (en) * 1940-10-17 1944-12-14 Ig Farbenindustrie Ag Whitening agent for organic matter
GB669896A (en) * 1949-01-14 1952-04-09 Ilford Ltd Improvements in or relating to a process for improving the whiteness or colour of materials

Also Published As

Publication number Publication date
FR1084209A (en) 1955-01-18
GB736452A (en) 1955-09-07
DE1010490B (en) 1957-06-19

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