5444142

Information

• Patent Grant
• 5444142

• References
• Source

• Patent Number

  5,444,142

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1995
  29 years ago

• CPC

  • C07D333/22 - Radicals substituted by doubly bound hetero atoms, or by two hetero atoms other than halogen singly bound to the same carbon atom
  • C07D333/24 - Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
  • C07D333/36 - Nitrogen atoms
  • C07D333/44 - attached in position 5
  • C07D417/12 - linked by a chain containing hetero atoms as chain links
  • C08G73/1039 - comprising halogen-containing substituents
  • C08G73/1085 - Polyimides with diamino moieties or tetracarboxylic segments containing heterocyclic moieties
  • G02F1/361 - Organic materials
  • G02F1/3612 - Heterocycles having N as heteroatom
  • G02F1/3614 - Heterocycles having S as heteroatom
  • G02F1/3615 - containing polymers
  • G02F1/3616 - having the non-linear optical group in the main chain
  • G02F1/3617 - having the non-linear optical group in a side chain