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Title:
光学材料用高純度１，２，３，５，６－ペンタチエパン、およびその精製方法
Document Type and Number:
Japanese Patent JP7115590
Kind Code:
B2
Abstract:
To provide a high-purity 1,2,3,5,6-pentathiepane for optical materials in which a cured product with high transparency can be produced, and to provide a method for purifying the same.SOLUTION: Provided is a 1,2,3,5,6-pentathiepane for optical materials in which the turbidity of a solution with purified 1,2,3,5,6-pentathiepane 2 g dissolved in chloroform 30 g is 500 ppm or less.

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Inventors:
Yoshihiko Nishimori
Yosuke Imagawa
Ryosuke Yamamoto
Yutaka Horikoshi
Application Number:
JP2021085559A
Publication Date:
August 09, 2022
Filing Date:
May 20, 2021
Export Citation:
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Assignee:
Mitsubishi Gas Chemical Co., Ltd.
International Classes:
C08G75/14; C07D341/00; G02B1/04
Domestic Patent References:
JP2002040201A
JP2004043526A
JP2011231305A
JP2017114972A
Foreign References:
WO2015159811A1
WO2016152400A1
WO2016204080A1
Attorney, Agent or Firm:
Hiroshi Kobayashi
Kyoei Sugiyama
Yasuhito Suzuki



 
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