Patent ID: 11905431
Assignee: PI ADVANCED MATERIALS CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 10:
11. The polyimide varnish according to claim 1,
wherein the antioxidant comprises a compound represented by the following formula, wherein, R1 to R6 may each independently be selected from the group consisting of a C1-C3 alkyl group, an aryl group, a carboxylic acid group, a hydroxy group, a fluoroalkyl group and a sulfonic acid group,
n is an integer of 1 to 4,
when R1 to R6 are in plural, they may be the same or different from each other, and
m1 to m6 are each independently an integer of 0 to 3.