Polyamic acid resin composition, polyimide resin composition, polyimide oxazole resin composition, and flexible substrate containing same
A technology of polyamic acid resin and polyimide resin, applied in the field of flexible substrates, can solve the problems of high transparency and low birefringence, and achieve low birefringence, high light transmittance, and excellent heat resistance. Effect
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Embodiment 1
[0182] PMDA-HH 2.7704 g (12 mmol), HFHA 7.4706 g (12 mmol), and NMP 50 g were added to a 100 mL 4-necked flask under a dry nitrogen stream, and heated and stirred at 80°C. After 8 hours, cool to form a varnish.
Embodiment 2
[0184] PMDA-HS2.7704g (12mmol), HFHA7.4706g (12mmol), and NMP50g were added to a 100mL 4-necked flask under dry nitrogen flow, and it heated and stirred at 80 degreeC. After 8 hours, cool to form a varnish.
Embodiment 3
[0186] 3.4441 g (11 mmol) of BPDA-H, 6.7969 g (11 mmol) of HFHA, and 50 g of NMP were added to a 100 mL four-neck flask under a dry nitrogen flow, and heated and stirred at 80°C. After 8 hours, cool to form a varnish.
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