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:
Nov. 25, 2008
Filed:
Sep. 21, 2005
Naoyoshi Hatakeyama, Chiba, JP;
Shinji Tanaka, Chiba, JP;
Naoyoshi Hatakeyama, Chiba, JP;
Shinji Tanaka, Chiba, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
The invention provides a novel adamantane derivative useful as a monomer for producing functional resins such as photosensitive resins particularly for use in lithography, and a method for producing the derivative. The adamantane derivative has a structure represented by formula (I-a) and the method for producing the adamantane derivative employs a corresponding adamantane derivative serving as a starting material. In formula (I), Rrepresents H, CH, or CF; Rrepresents a C1 to C30 alkyl group or a hydrocarbon group containing a C3 to C30 cycloalkyl group or a C6 to C30 aryl group, the alkyl group or the hydrocarbon group having a hetero atom; each of Xand Xrepresents O or S; Y represents a C1 to C10 alkyl group, a halogen atom, OH, or SH, or two Ys are linked to form ═O or ═S; k represents an integer of 0 to 14; and each of m and n is an integer of 0 to 2.