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Preparation by alkaline melting of 2-amino-anthraquinones

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Industry

  • CPC
  • C09B5/50
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Parent Industries

CCHEMISTRY METALLURGY C09Paints, dyes C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES MORDANTS LAKES C09B5/00Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings

Current Industry

C09B5/50Preparation by alkaline melting of 2-amino-anthraquinones
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Patents Grantslast 30 patents

  • Information Patent Grant

    2035459
    • Patent number 2,035,459
    • Issue date Mar 31, 1936
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1997610
    • Patent number 1,997,610
    • Issue date Apr 16, 1935
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1994484
    • Patent number 1,994,484
    • Issue date Mar 19, 1935
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1990954
    • Patent number 1,990,954
    • Issue date Feb 12, 1935
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1975248
    • Patent number 1,975,248
    • Issue date Oct 2, 1934
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1790109
    • Patent number 1,790,109
    • Issue date Jan 27, 1931
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1731800
    • Patent number 1,731,800
    • Issue date Oct 15, 1929
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1580700
    • Patent number 1,580,700
    • Issue date Apr 13, 1926
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1541156
    • Patent number 1,541,156
    • Issue date Jun 9, 1925
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1518051
    • Patent number 1,518,051
    • Issue date Dec 2, 1924
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1509846
    • Patent number 1,509,846
    • Issue date Sep 30, 1924
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1430277
    • Patent number 1,430,277
    • Issue date Sep 26, 1922
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents