EP 0983276 A1 20000308 - NOVEL PHOTOCHROMIC SPIROOXAZINE COMPOUNDS, THEIR USE IN OPHTHALMIC OPTICS
Title (en)
NOVEL PHOTOCHROMIC SPIROOXAZINE COMPOUNDS, THEIR USE IN OPHTHALMIC OPTICS
Title (de)
PHOTOCHROMISCH SPIROOXAZINVERBINDUNGEN, IHRE VERWENDUNG IN DER OPHTHALMISCHEN OPTIK
Title (fr)
NOUVEAUX COMPOSES PHOTOCHROMIQUES SPIROOXAZINES, LEUR UTILISATION DANS LE DOMAINE DE L'OPTIQUE OPHTALMIQUE
Publication
Application
Priority
- FR 9705544 A 19970506
- IB 9800654 W 19980430
Abstract (en)
[origin: FR2763070A1] The invention concerns photochromic compounds of spiro{indoline-{2,3'}-benzoxazine} containing at least an electron-attracting group bound in position 5' or 6' to the benzoxazine structure by a chain comprising at least a double ethylenic bond. The invention is applicable to ophthalmic optics.
IPC 1-7
IPC 8 full level
C07D 498/10 (2006.01); C08J 5/00 (2006.01); C08K 5/357 (2006.01); G03C 1/685 (2006.01)
CPC (source: EP US)
C07D 498/10 (2013.01 - EP US)
Citation (search report)
See references of WO 9850388A1
Designated contracting state (EPC)
DE ES FR GB IE IT
DOCDB simple family (publication)
FR 2763070 A1 19981113; FR 2763070 B1 19990702; AU 6931798 A 19981127; AU 728126 B2 20010104; BR 9809601 A 20000704; EP 0983276 A1 20000308; JP 2002512620 A 20020423; US 6019914 A 20000201; WO 9850388 A1 19981112
DOCDB simple family (application)
FR 9705544 A 19970506; AU 6931798 A 19980430; BR 9809601 A 19980430; EP 98915034 A 19980430; IB 9800654 W 19980430; JP 54786798 A 19980430; US 92603497 A 19970909