3810873

Information

• Patent Grant
• 3810873

• References
• Source

• Patent Number

  3,810,873

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1974
  50 years ago

• CPC

  • C08G73/1085 - Polyimides with diamino moieties or tetracarboxylic segments containing heterocyclic moieties
  • C07D213/48 - Aldehydo radicals
  • C08F8/00 - Chemical modification by after-treatment
  • C08F20/08 - Anhydrides
  • C08F26/06 - by a heterocyclic ring containing nitrogen
  • C08G2/10 - Polymerisation of cyclic oligomers of formaldehyde
  • C08G6/02 - of aldehydes with ketones
  • C08G18/3246 - heterocyclic, the heteroatom being oxygen or nitrogen in the form of an amino group
  • C08G18/3293 - containing heterocyclic groups
  • C08G18/3844 - containing one nitrogen atom in the ring
  • C08G18/78 - Nitrogen
  • C08G18/7881 - having one nitrogen atom in the ring
  • C08G18/838 - by compounds containing heteroatoms other than oxygen, halogens, nitrogen, sulfur, phosphorus or silicon
  • C08G63/685 - containing nitrogen
  • C08G69/26 - derived from polyamines and polycarboxylic acids
  • C08G73/0627 - with only one nitrogen atom in the ring
  • C08G73/1003 - Preparatory processes

• US Classifications

  • 528 - Synthetic resins or natural rubbers
  • 525 - Synthetic resins or natural rubbers
  • 546 - Organic compounds