SELF-HEALING INFRARED TRANSMITTING POLYIMIDE OPTICAL POLYMER MATERIAL HAVING HIGH REFRACTIVE INDEX, AND COMPOSITE THEREOF

WIPO Patent Application WO/2020/162693

A1

The present invention relates to a self-healing infrared transmitting polyimide optical polymer material having a high refractive index, and a composite thereof, and prepares a novel chalcogen-based tetracarboxylic dianhydride compound represented by [chemical formula 1], a polyimide polymer comprising same, and an organic/inorganic polyimide composite, and thus has a high light transmittance in a broad wavelength range from visible to infrared, a high refractive index, and high heat resistance and mechanical properties and can also implement excellent self-healing characteristics.

HAN HAK SOO (KR)
NAM KI-HO (KR)

PCT/KR2020/001726

August 13, 2020

February 06, 2020

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INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIV (KR)

C07D417/04; C07D307/89; C08G73/10; C08G83/00; C08J5/18; C08K3/013; C08K9/04; C08L79/08

JP2003212994A	2003-07-30
JP2007332185A	2007-12-27
CN106498557A	2017-03-15

KIM, HYEONIL ET AL.: "Synergistic Effect of Sulfur and Chalcogen Atoms on the Enhanced Refractive Indices of Polyimides in the Visible and Near-Infrared Regions", MACROMOLECULES, vol. 52, no. 3, 11 January 2019 (2019-01-11), pages 827 - 834, XP022250527
HUANG, X. ET AL.: "Synthesis and characterization ofthioether-containing polyimides with high refractive indices", JOURNAL OF POLYMER RESEARCH, vol. 19, no. 2, 2012, pages 1 - 9, XP035026074, DOI: 10.1007/s10965-011-9790-4

CHUNG HYUN PATENT & LAW FIRM (KR)

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