Korea Kumho Petrochemical Co., Ltd.

Jong-Don Lee

Seung-Duk Cho

Jun-Ho Lee

Joo-Hyeon Park

Young-Taek Lim

Seung-Hee Hong

Myung-Woong Kim

Shin-Hyo Bae

Hyung-Gi Kim

A light absorbent for forming an organic anti-reflective layer, represented by the following formula 1 or formula 2, is provided:  wherein A represents a substituted or unsubstituted, linear or branched, saturated tetravalent hydrocarbon group, a substituted or unsubstituted, linear or branched, saturated hydrocarbon group and containing one or more heteroatoms, a substituted or unsubstituted aromatic group, a substituted or unsubstituted heteroaromatic group, a substituted or unsubstituted alicyclic group, a substituted or unsubstituted heteroalicyclic group, a substituted or unsubstituted diaryl ether, a substituted or unsubstituted diaryl sulfide, a substituted or unsubstituted diaryl sulfoxide, a substituted or unsubstituted diaryl ketone, or a substituted or unsubstituted diaryl bisphenol A; R, R, and Reach independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted acetal group, or a substituted or unsubstituted hydroxyl group; and n is an integer from 2 to 500.

Organic anti-reflective layer composition containing ring-opened phthalic anhydride and method for preparation thereof

The present invention provides an organic anti-reflection coating composition comprising a copolymer represented by the following Formula 1, a light absorbent, a thermal acid generating agent, and a curing agent: 

Copolymer and composition for organic and antireflective layer

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Asan-si, South Korea

Jong-Don Lee