Patent ID: 11958939
Assignee: FUJIFILM BUSINESS INNOVATION CORP.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polyimide precursor solution, comprising:
an aqueous solvent containing water;
particles; and
a polyimide precursor, wherein
the polyimide precursor has a high molecular weight region A containing a high molecular weight side maximum value and a low molecular weight region B containing a tow molecular weight side maximum value in an elution curve obtained by gel permeation chromatography, a weight average molecular weight in the high molecular weight region A is 50,000 or more, a weight average molecular weight in the low molecular weight region B is 10,000 or more and 30,000 or less, and a value of a/(a+b) is 0.60 or more and 0.98 or less wherein a represents an area of the high molecular weight region A and b represents an area of the low molecular weight region B.