PHOTOCHROMATIC COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE IN POLYMERIC MATERIALS
摘要
Photochromatic compounds belonging to the group of spiro-isoindolino-oxazines having general formula (I). The above photochromatic compounds having general formula (I) have excellent photochromatic characteristics, excellent stress resistance and high dyability characteristics.
申请公布号
WO9901457(A1)
申请公布日期
1999.01.14
申请号
WO1998EP03994
申请日期
1998.07.01
申请人
GREAT LAKES CHEMICAL ITALIA S.R.L;CRISCI, LUCIANA;GIROLDINI, WILLIAM;MALATESTA, VINCENZO;WIS, MARIA, LUCIA
