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. 01, 2005
Filed:
Aug. 27, 2002
Yuichi Yoshimura, Mie, JP;
Motoharu Takeuchi, Tokyo, JP;
Kazumoto Nakagawa, Tokyo, JP;
Mitsubishi Gas Chemical Co., LTD., Tokyo, JP;
Abstract
The composition for optical materials of the present invention comprises a compound having in one molecule at least one structure represented by the following formula (1):wherein R, R, R, R, X, Y and n are as defined in the disclosure, an amine compound and an isocyanate compound. Resins obtained by curing the composition by polymerization are useful as well-balanced optical materials having a high impact resistance, a high refractive index and a sufficiently high Abbe's number.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile