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. 09, 2008
Filed:
Feb. 26, 2004
Shinji Tanaka, Chiba, JP;
Hidetoshi Ono, Chiba, JP;
Kouichi Kodoi, Chiba, JP;
Naoyoshi Hatakeyama, Chiba, JP;
Shinji Tanaka, Chiba, JP;
Hidetoshi Ono, Chiba, JP;
Kouichi Kodoi, Chiba, JP;
Naoyoshi Hatakeyama, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
The invention provides compounds which are excellent in terms of heat resistance, mechanical characteristics, electric characteristics, physical properties, etc. and which provide a novel material useful for, for example, interlayer insulating film or protective film for use in semiconductor devices, interlayer insulating film for use in multilayer wiring boards, cover coating in flexible printed circuits, or a liquid crystal alignment layer. The compounds are bis(3-amino-4-hydroxyphenyl)adamantane derivatives having a structure represented by formula (I) or (II): (each of Rto Rrepresents a halogen atom, a hydroxyl group, an alkyl group, an alkoxyl group, a carboxyl group, or an alkoxycarbonyl group, each of m and a is an integer of 0 to 3, and each of n and b is an integer of 0 to 14, with the proviso that the case where the following three conditions in formula (I) are met is excluded: Ris methyl and present at a bridgehead; m is 0; and n is 2).