Title:
新規なポリイソシアネート化合物、その製造方法及び用途
Document Type and Number:
Japanese Patent JP4266748
Kind Code:
B2
Abstract:
The invention provides an optical material being excellent in balance between the heat resistance, Abbe number and refractive index by providing a compound represented by the general formula (1): in the formula, k and n representing integers of 0 to 2 and 0 to 1, respectively, with the proviso that k and n are not simultaneously zero, and k=0 meaning that -(CH2)k- is not included in the formula.
Inventors:
Ryuji Haseyama
Fukada Isao
You Matsuura
Mizuki Yuuki
Seiichi Kobayashi
Fukada Isao
You Matsuura
Mizuki Yuuki
Seiichi Kobayashi
Application Number:
JP2003302244A
Publication Date:
May 20, 2009
Filing Date:
August 27, 2003
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C07C265/14; C07C211/38; C07C263/10; C07C265/10; C08G18/38; C08G18/75; G02B1/04; G02B3/00
Domestic Patent References:
| JP3220167A |
Attorney, Agent or Firm:
Akio Miyazaki
Ishibashi Masayuki
Masaaki Ogata
Ishibashi Masayuki
Masaaki Ogata