Title:
テレフタリリデンジカンフルスルホン酸塩の酸性化方法｛ａ ｍｅｔｈｏｄ ｆｏｒ ａｃｉｄｉｆｙｉｎｇ ｔｅｒｅｐｈｔｈａｌｙｌｉｄｅｎｅ ｄｉｃａｍｐｈｏｒ ｓｕｌｆｏｎａｔｅ｝
Document Type and Number:
Japanese Patent JP7185017
Kind Code:
B2
Abstract:
The present invention relates to a method for acidifying terephthalylidene dicamphor sulfonate and, more specifically, to a method for converting terephthalylidene dicamphor sulfonate into terephthalylidene dicamphor sulfonic acid using cation exchange fibers. The present invention can provide a method for acidifying terephthalylidene dicamphor sulfonate, in which a manufacturing process is simple, and yield, purity, and an acid conversion rate are high. In the present invention, terephthalylidene dicamphor sulfonate can be converted into terephthalylidene dicamphor sulfonic acid with a high conversion rate by using cation exchange fibers, and it is also very easy to remove salts formed during conversion.
Inventors:
Ludonsun
Application Number:
JP2021507518A
Publication Date:
December 06, 2022
Filing Date:
May 08, 2020
Export Citation:
Assignee:
Sera Sue Company Limited
International Classes:
C07C303/44; C07C309/24
Domestic Patent References:
| JP2019507191A | ||||
| JP2002363116A |
Foreign References:
| KR1020090032803A |
Attorney, Agent or Firm:
Shinji Aida
Chung Motoki
Kyoko Aida
Chung Motoki
Kyoko Aida
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