POLYIMIDE PRECURSOR SOLUTION, AND METHOD FOR PRODUCING POLYIMIDE RESIN FILM

• Main Authors: NAKADA KOSUKE, KASHIMA YASUNOBU, HIROSE HIDEKAZU, YOSHIMURA KOSAKU
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

The invention provides a polyimide precursor solution, and a method for producing a polymide resin film. The polyimide precursor solution includes: a polyimide precursor; an aqueous solvent containing a water-soluble organic solvent and water; and particles, in which the particles have a volume average particle diameter within a range of 2.5 [mu]m to 30 [mu]m, an average circularity within a range of 0.900 to 0.990, and a standard deviation of circularity distribution of less than or equal to 0.1. 一种聚酰亚胺前体溶液及聚酰亚胺树脂膜的制造方法。聚酰亚胺前体溶液含有：聚酰亚胺前体；水性溶剂，含有水溶性有机溶剂和水；及粒子，所述粒子的体积平均粒径在2.5μm至30μm的范围内，平均圆度在0.900至0.990的范围内，圆度分布的标准偏差为0.1以下。