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:
Aug. 07, 2012
Filed:
Oct. 08, 2010
Keizo Inoue, Himeji, JP;
Takahiro Iwahama, Himeji, JP;
Masamichi Nishimura, Himeji, JP;
Kiyoharu Tsutsumi, Himeji, JP;
Keizo Inoue, Himeji, JP;
Takahiro Iwahama, Himeji, JP;
Masamichi Nishimura, Himeji, JP;
Kiyoharu Tsutsumi, Himeji, JP;
Daicel Chemical Industries, Ltd., Sakai-Shi, Osaka, JP;
Abstract
A polycyclic ester containing a cyano group and a lactone skeleton, represented by following Formula (1): wherein Rrepresents, for example, a hydrogen atom or an alkyl group having one to six carbon atoms which may have a halogen atom; Rs each represent, for example, a halogen atom or an alkyl or haloalkyl group having one to six carbon atoms; 'm' is the number of Rs; 'n' is the number of cyano groups; and CH═C(R)COO— group may have either of an endo conformation and an exo conformation. Accordingly, there is provided a novel polycyclic ester containing a cyano group and a lactone skeleton which is useful typically as a monomeric component for highly functional polymers. A polymer, for example, derived from this compound is highly soluble in an organic solvent while remaining stable typically to chemicals and exhibits improved hydrolyzability and/or improved solubility in water after hydrolysis.