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:
Sep. 27, 2011
Filed:
Apr. 01, 2009
Jung-hoon OH, Cheonan-si, KR;
Dong-cheol Seo, Cheonan-si, KR;
Jin-bong Shin, Dobong-gu, KR;
Korea Kumho Petrochenicals Co., Ltd., Seoul, KR;
Abstract
An acid generator represented by the following formula (1) is provided: wherein X represents an alkylene group having 1 to 10 carbon atoms, —X—O—X—, or a heteroatom selected from the group consisting of nitrogen, sulfur and fluorine; Xand Xeach independently represent an alkylene group having 1 to 10 carbon atoms; Y represents a cyclic hydrocarbon group having 5 to 30 carbon atoms and containing one or more aromatic rings, while one or more hydrogen atoms on the ring of the cyclic hydrocarbon group may be substituted by one or more members selected from the group consisting of —O—Y, —CO—Y, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a perfluoroalkyl group having 1 to 4 carbon atoms, a perfluoroalkoxy group having 1 to 4 carbon atoms, a hydroxyalkyl group having 1 to 6 carbon atoms, a halogen atom, a hydroxyl group and a cyano group; Yand Yeach independently represent an alkyl group having 1 to 6 carbon atoms; n represents an integer of 0 or 5; and Arepresents an organic counterion.