NEW POLYISOCYANATE COMPOUND, METHOD FOR PRODUCING THE SAME AND USE THEREOF

Title:

NEW POLYISOCYANATE COMPOUND, METHOD FOR PRODUCING THE SAME AND USE THEREOF

Document Type and Number:

Japanese Patent JP2005068097

Kind Code:

A

Abstract:

To provide an optical material having high heat-resistance and balanced Abbe number and refractive index.

The compound is expressed by general formula (1) (k is an integer of 0-2; and n is an integer of 0-1 provided that k and n are not zero at the same time and k=0 means the absence of (CH2)k group).

Inventors:

HASEYAMA RYUJI
FUKADA ISAO
MATSUURA AKIRA
MIZUTANI SUKEYOSHI
KOBAYASHI SEIICHI

Application Number:

JP2003302244A

Publication Date:

March 17, 2005

Filing Date:

August 27, 2003

Export Citation:

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Assignee:

MITSUI CHEMICALS INC

International Classes:

C07C211/38; C07C263/10; C07C265/10; C07C265/14; C08G18/38; C08G18/75; G02B1/04; G02B3/00; (IPC1-7): C07C265/14; C07C263/10; C08G18/75; G02B1/04; G02B3/00

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