Title:
光学材料用組成物
Document Type and Number:
Japanese Patent JP3963170
Kind Code:
B2
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<1>, R<2>, R<3>, R<4>, 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.
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Inventors:
Yuichi Yoshimura
Motoharu Takeuchi
Nakagawa Kazuki
Motoharu Takeuchi
Nakagawa Kazuki
Application Number:
JP2003525053A
Publication Date:
August 22, 2007
Filing Date:
August 27, 2002
Export Citation:
Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C08G18/32; C08G18/38; C08G18/75; G02B1/04
Domestic Patent References:
| JP2000256435A | ||||
| JP11100428A | ||||
| JP11352302A | ||||
| JP11292950A | ||||
| JP2001131257A | ||||
| JP2001300943A |
Attorney, Agent or Firm:
Kenichi Hirasawa