| abstract |
(57) [Abstract] [Purpose] To provide a colorant for silicone rubber, which has excellent fastness and does not undergo discoloration or discoloration even if a large heat history is applied, and does not discolor or discolor even after long-term exposure. .. [Structure] At least one of diketopyrrolopyrrole, isoindolinone, and brominated phthalocyanine as a pigment. A coloring agent characterized by using three or more and siloxane as a vehicle. |