Polycarbonate resin and optical film

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United States of America Patent

PATENT NO 9850344
SERIAL NO

15108837

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Abstract

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Provided are a polycarbonate resin and an optical film formed therefrom, having wavelength dispersion characteristics close to the ideal broad bandwidth, excellent durable stability and flexibility, high retardation developability, a low photoelastic constant, and excellent melt processability. The polycarbonate resin comprises a unit (A) represented by the following formula, wherein R1 and R2 each independently represent a hydrogen atom, hydrocarbon group having 1 to 10 carbon atoms optionally containing an aromatic group, or a halogen atom, and m and n each independently represent an integer of 0 to 4:

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Patent Owner(s)

Patent OwnerAddress
TEIJIN LIMITEDOSAKA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Motoyoshi, Tetsuya Osaka, JP 16 73
Oda, Kouji Osaka, JP 14 134
Okada, Youhei Osaka, JP 1 4
Yamanaka, Katsuhiro Osaka, JP 54 619

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