SPIRO INDOLINE- 2,3']-BENZOXAZINE]-TYPE PHOTOCHROMIC COMPOUNDS CONTAINING A 6'-CYANO OR PHENYLSULPHONYL GROUP AND WITH A 7', 8'-CONDENSED BENZENE RING IN THE BENZOXAZINE RING AND USE OF SAME IN OPHTHALMIC OPTICS
摘要
申请公布号
EP0772798(B1)
申请公布日期
1999.06.02
申请号
EP19950927001
申请日期
1995.07.31
申请人
TRANSITIONS OPTICAL, INC.
发明人
LAREGINIE, PIERRE;LOKSHIN, VLADIMIR;SAMAT, ANDRE;GUGLIELMETTI, ROBERT;ZABALLOS GARCIA, ELENA
