Episulfide compounds useful as starting materials of optical materials are stably stored for a long period of time at a temperature ranging from their solidifying points to 20 DEG C, preventing the production or precipitation of polymers and the yellowing.
申请公布号
EP1333030(B1)
申请公布日期
2004.10.13
申请号
EP20000971819
申请日期
2000.11.07
申请人
MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人
AMAGAI, AKIKAZU;YOSHIMURA, Y.;TAKEUCHI, M.;NIIMI, ATSUKI;HORIKOSHI, H.;SHIMUTA, M.;UEMURA, N.
