2-aryl-4, 5-arylo-1, 2, 3-triazole

• US 3,189,615 A
• Filed: 10/03/1961
• Issued: 06/15/1965
• Est. Priority Date: 12/14/1956
• Status: Expired due to Term

• Current Assignee: Ernst Keller, Fritz Mindermann, Hansjorg Heller, Hermann Gysling
• Original Assignee: Ernst Keller, Fritz Mindermann, Hansjorg Heller, Hermann Gysling
• Inventors: HANSJORG HELLER, ERNST KELLER, HERMANN GYSLING, FRITZ MINDERMANN
• Application Number:
  US04/142,537
• Time in Patent Office: 1,351 Days
• US Class Current: 548/260
• CPC Class Codes: A61K 8/496 Triazoles or their condensed derivatives, e.g. benzotriazoles
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: C07D 249/20 with aryl radicals directly attached in position 2
• CPC Class Codes: C08K 5/3475 condensed with carbocyclic rings
• CPC Class Codes: C09K 15/30 containing heterocyclic ring with at least one nitrogen atom as ring member
• CPC Class Codes: C11B 5/0064 Heterocyclic compounds containing nitrogen in the ring
• CPC Class Codes: G03C 1/8155 Organic compounds therefor

Claims

1. AN ULTRAVIOLET LIGHT-ABSORBING COMPOUND, CAPABLE OF PROTECTING MATERIALS SENSITIVE TO ULTRAVIOLET LIGHT, OF THE FORMULA