Title:
COMPOSITION FOR OPTICAL MATERIAL AND OPTICAL MATERIAL USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2016/204080
Kind Code:
A1
Abstract:
The present invention provides a composition for an optical material containing a ring compound (a) represented by formula (1), an episulfide compound (b), and sulfur (c), wherein the ratio of the ring compound (a) in the composition for an optical material is in the range of 5-70 mass%, the ratio of the episulfide compound (b) is in the range of 20-90 mass%, and the ratio of the sulfur (c) is in the range of 1-39 mass%. (In the formula, X represents X, Se, or Te. a to f = 0 to 3, 8 ≧ (a + c + e) ≧ 1, 8 ≧ (b + d + f) ≧ 2, and (b + d + f) ≧ (a + c + e).) This composition for an optical material has a high refractive index as an optical characteristic, and has sufficient heat resistance and good mold release characteristics.
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Inventors:
IMAGAWA YOUSUKE (JP)
HORITA AKINOBU (JP)
YAMAMOTO YOSHIAKI (JP)
HORIKOSHI HIROSHI (JP)
HORITA AKINOBU (JP)
YAMAMOTO YOSHIAKI (JP)
HORIKOSHI HIROSHI (JP)
Application Number:
PCT/JP2016/067317
Publication Date:
December 22, 2016
Filing Date:
June 10, 2016
Export Citation:
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G75/06; C08G79/00; G02B1/04; G02B1/11; G02B1/14
Foreign References:
| JP2002090502A | 2002-03-27 | |||
| JP2004175726A | 2004-06-24 | |||
| JP2002040201A | 2002-02-06 |
Other References:
See also references of EP 3312216A4
Attorney, Agent or Firm:
KOBAYASHI Hiroshi et al. (JP)
Kobayashi 浩 (JP)
Kobayashi 浩 (JP)
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