Patents Examined by Luara L Stockton
  • Black isoindolinone pigment and coloring agent
    Patent number: 10723882
    Abstract: Provided is an infrared-reflecting black isoindolinone pigment having a novel skeleton, the black isoindolinone pigment having a high blackness (coloring power) and excellent durability such as heat resistance. The black isoindolinone pigment is represented by the following formula (1), wherein each X independently represents a chlorine atom, a bromine atom, or an alkyl group, and 8?n+m?0.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 28, 2020
    Assignee: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventor: Shuwa Ozako