Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CYANOGEN-HALIDE PRODUCTION METHOD, CYANATE ESTER COMPOUND AND PRODUCTION METHOD THEREFOR, AND RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2014/065422
Kind Code:
A9
Abstract:
The present invention addresses the problem of providing: an efficient production method for a cyanogen halide with which secondary reactions are inhibited in the production of cyanate ester compounds; and a production method with which a highly pure cyanate ester compound is obtained in high yields. This cyanogen-halide production method is provided with a cyanogen-halide production step in which halogen molecules are brought into contact with an aqueous solution including hydrogen cyanide and/or a metal cyanide, thereby causing the halogen particles to react with the hydrogen cyanide and/or the metal cyanide in the reaction solution to produce a cyanogen halide. In the cyanogen-halide production step: the usage amount of the hydrogen cyanide or the metal cyanide exceeds 1 mol per 1 mol of the halogen molecules; and if the amount of unreacted hydrogen cyanide or unreacted metal cyanide is (A) mol, and the amount of cyanogen halide generated is (B) mol, then the reaction is ended when a state is obtained in which (A):(A)+(B) is within the range 0.00009:1 to 0.2:1.

Inventors:
KATAGIRI MASAYUKI (JP)
SUGANO YUUICHI (JP)
IKENO TAKETO (JP)
TSUBUKU MAKOTO (JP)
TOKUZUMI KEITA (JP)
ARII KENJI (JP)
KOBAYASHI TAKASHI (JP)
SOGAME MASANOBU (JP)
MABUCHI YOSHINORI (JP)
KATO YOSHIHIRO (JP)
Application Number:
PCT/JP2013/079048
Publication Date:
July 10, 2014
Filing Date:
October 25, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C01C3/00; C07C261/02; C07C39/16
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
Download PDF: