Kolon Industries, Inc.

Young Sik Jeong

Hak Gee Jung

Hyo Jun Park

Chang Sik Ha

Pradip Kumar Tapaswi

Prdip Kumar Tapaswi

The present invention relates to a novel acid dianhydride, a method for preparing the same, and a polyimide prepared therefrom. More specifically, the acid dianhydride according to the present invention is useful as a colorless transparent polyimide unit exhibiting excellent thermal stability and a low dielectric ratio, and the polyimide of the present invention has excellent solubility to an organic solvent compared with the conventional polyimide.

Acid dianhydride, method for preparing same, and polyimide prepared therefrom

This invention relates to a polyimide and a film using the same and, more particularly, to a polyimide, which can exhibit a low dielectric constant while retaining the superior properties thereof, and can thus be utilized as electronic materials such as protective materials or insulating materials for liquid crystal displays or semiconductors, and optical communication materials such as optical waveguide materials, and to a polyimide film including the same.

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Ulsan, South Korea

Young Sik Jeong