Special process features in the quaternization reaction

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  • C09B44/005
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Patents Grantslast 30 patents

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    • Christian Cremer
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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    Preparation of quaternized azo dyes

    • Patent number 5,264,560
    • Issue date Nov 23, 1993
    • BASF Aktiengesellschaft
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    • Patent number 4,638,053
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    Process for the preparation of cationic dyestuffs

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    • Bayer Aktiengesellschaft
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  • Information Patent Grant

    Process for the preparation of cationic dyestuffs

    • Patent number 4,343,936
    • Issue date Aug 10, 1982
    • Bayer Aktiengesellschaft
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    Process for the preparation of cationic dyestuffs

    • Patent number 4,342,867
    • Issue date Aug 3, 1982
    • Bayer Aktiengesellschaft
    • Harald Gleinig
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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    • Patent number 4,292,238
    • Issue date Sep 29, 1981
    • Bayer Aktiengesellschaft
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    Process for the preparation of cationic dyestuffs

    • Patent number 4,281,112
    • Issue date Jul 28, 1981
    • Bayer Aktiengesellschaft
    • Klaus-Friedrich Lehment
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  • Information Patent Grant

    Process for the preparation of chlorozincate salts of thiazolium az...

    • Patent number 4,269,768
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  • Information Patent Grant

    Process for dry quaternization of azo compounds

    • Patent number 4,081,436
    • Issue date Mar 28, 1978
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    • Richard Benjamin Balsley
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    • Patent number 4,026,885
    • Issue date May 31, 1977
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    • Christian Frey
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  • Information Patent Grant

    Mixtures of azo compounds having a 2-nitro-4-phenylsulfamoyldipheny...

    • Patent number 4,009,158
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    • Patent number 3,997,519
    • Issue date Dec 14, 1976
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    • Robert F. Armbruster
    • C07 - ORGANIC CHEMISTRY
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    Quaternization of benzthiazole-azo compounds

    • Patent number 3,991,043
    • Issue date Nov 9, 1976
    • Toms River Chemical Corporation
    • Hugo Illy
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

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    3912712

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    • C07 - ORGANIC CHEMISTRY
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    3865805

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  • Information Patent Grant

    3718642

    • Patent number 3,718,642
    • Issue date Feb 27, 1973
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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    3691148

    • Patent number 3,691,148
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    • C07 - ORGANIC CHEMISTRY
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    3519615

    • Patent number 3,519,615
    • Issue date Jul 7, 1970
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    3518247

    • Patent number 3,518,247
    • Issue date Jun 30, 1970
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    Tricationic dyes

    • Publication number 20100011518
    • Publication date Jan 21, 2010
    • Christian Cremer
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE