The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2011
Filed:
Jun. 13, 2008
Joo-hyeon Park, Chungcheongnam-do, KR;
Ji-young Kim, Seoul, KR;
Jun-ho Lee, Chungcheongnam-do, KR;
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Abstract
The present invention relates to a light absorbent for organic anti-reflection coating formation, and an organic anti-reflection film composition containing the same. The light absorbent for organic anti-reflection film formation according to the present invention is a compound of the following formula (1a), a compound of the following formula (1b), a mixture of compounds of the formulas (1a) and (1b): wherein X is selected from the group consisting of a substituted or unsubstituted cyclic group having 1 to 20 carbon atoms, aryl, diaryl ether, diaryl sulfide, diaryl sulfoxide and diaryl ketone; and Ris a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or an aryl group having 1 to 14 carbon atoms.