1-N-alkyl-5'-[(N'-(un)substituted)amido]spiroindolinonaphthoxazines, their preparation, compositions and (co)polymer matrices containing them
申请人:Corning S.A.
公开号:EP1044978A3
公开(公告)日:2001-05-09
The object of the present invention is novel spiroindolinonaphthoxazine compounds as well as the compositions and (co)polymer matrices containing them. Said compounds have interesting photochromic properties. Another object of the present invention is a method of preparing said novel compounds.