[EN] PHOTOCHROMIC DERIVATIVES OF CARBOCYCLICALLY FUSED NAPHTHOPYRANS<br/>[FR] DERIVES PHOTOCHROMIQUES DE NAPHTOPYRANES CARBOCYCLIQUEMENT FUSIONNES
申请人:TRANSITIONS OPTICAL, INC.
公开号:WO1999020619A1
公开(公告)日:1999-04-29
(EN) Described are novel pentahydrophenanthro[9,10-b]pyrans and tetrahydrocyclopenta[c]-naphtho[1,2-b]pyrans. Also described are polymeric organic host materials that contain or that are coated with such compounds.(FR) La présente invention concerne des pentahydriphénanthro[9,10-b]pyranes et tétrahydrocyclopenta[c]-naphto[1,2-b]pyranes. L'invention concerne également des polymères hôtes organiques contenant ou couverts de tels composés.