BE609589A - Improvements to optical brighteners - Google Patents

Improvements to optical brighteners

Info

Publication number
BE609589A
BE609589A BE609589A BE609589A BE609589A BE 609589 A BE609589 A BE 609589A BE 609589 A BE609589 A BE 609589A BE 609589 A BE609589 A BE 609589A BE 609589 A BE609589 A BE 609589A
Authority
BE
Belgium
Prior art keywords
optical brighteners
brighteners
optical
Prior art date
Application number
BE609589A
Other languages
French (fr)
Inventor
Kumar Sarkar Asim
Arthur William Adams Dennis
Original Assignee
Hickson & Welch Ltd
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 Hickson & Welch Ltd filed Critical Hickson & Welch Ltd
Publication of BE609589A publication Critical patent/BE609589A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
BE609589A 1960-10-28 1961-10-25 Improvements to optical brighteners BE609589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3281460A GB993055A (en) 1960-10-28 1960-10-28 Improvements in or relating to optical whitening agents

Publications (1)

Publication Number Publication Date
BE609589A true BE609589A (en) 1962-04-15

Family

ID=10344402

Family Applications (1)

Application Number Title Priority Date Filing Date
BE609589A BE609589A (en) 1960-10-28 1961-10-25 Improvements to optical brighteners

Country Status (4)

Country Link
BE (1) BE609589A (en)
CH (1) CH405326A (en)
DE (1) DE1237124B (en)
GB (1) GB993055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1469222B1 (en) * 1964-09-25 1972-03-09 Hoechst Ag Pyrazoline derivatives and their preparation and use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1419329B1 (en) * 1962-04-21 1970-01-15 Hoechst Ag 1,3-diaryl-delta-pyrazoline compounds and their use as whitening agents
US4045169A (en) * 1971-09-09 1977-08-30 Hoechst Aktiengesellschaft 3-[3',4'-Dichloro-6'-alkyl-phenyl]-Δ 2-pyrazoline derivatives and their use as optical brighteners
DE2560051C3 (en) * 1975-07-31 1981-07-23 Basf Ag, 6700 Ludwigshafen Pyrazoline compounds
DE10208773A1 (en) 2002-02-28 2003-09-04 Clariant Gmbh Aqueous liquid formulations of pyrazoline brighteners

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919411C (en) * 1950-06-03 1954-10-21 Ilford Ltd Process for the preparation of aryl-substituted pyrazoline compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1469222B1 (en) * 1964-09-25 1972-03-09 Hoechst Ag Pyrazoline derivatives and their preparation and use

Also Published As

Publication number Publication date
GB993055A (en) 1965-05-26
DE1237124B (en) 1967-03-23
CH405326A (en) 1966-01-15

Similar Documents

Publication Publication Date Title
FR1298659A (en) Optical cavity
BE629875A (en) Optical brightening agents
FR1282158A (en) Improvements to sizing installations
BE609589A (en) Improvements to optical brighteners
BE600819A (en) Hydroxy-polymer solutions
FR1245962A (en) Optical brightening agents
CH418538A (en) Photochromic optical object
BE602731A (en) Image removal
BE600432A (en) Optical brightening agents
BE606740A (en) Brightening agents.
BE579045A (en) Improvements to stilbenic optical brighteners.
FR1333028A (en) Optical brighteners
FR1266382A (en) Lens frame
FR1314212A (en) Improvements to optical objectives
FR1265955A (en) Improvements to vice-filing slides
FR1260730A (en) Machining wheel
FR1268042A (en) Improvements to optical objectives
FR1331161A (en) Optical brightening agents
FR1286947A (en) Optical brightening agents
FR1245885A (en) Optical brightening agents
FR1286117A (en) Hydroxy-polymer solutions
FR1294356A (en) Optical brighteners
FR1269210A (en) Improvements to vice-filing slides
FR1267229A (en) Improvements to Italian tables
FR1251940A (en) Optical vibrograph