Global Patent Index - EP 0983276 A1

EP 0983276 A1 2000-03-08 - 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

EP 0983276 A1 (FR)

Application

EP 98915034 A

Priority

  • FR 9705544 A
  • IB 9800654 W

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 (main, further and additional classification)

C07D 498/10; G02B 1/04; G03C 1/685

IPC 8 full level (invention and additional information)

G03C 1/685 (2006.01); C07D 498/10 (2006.01); C08J 5/00 (2006.01); C08K 5/357 (2006.01)

CPC (invention and additional information)

C07D 498/10 (2013.01)

Citation (search report)

See references of WO 9850388A1

Designated contracting state (EPC)

DE ES FR GB IE IT

EPO simple patent family

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

INPADOC legal status


2004-05-19 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031104

2000-03-08 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991105

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB IE IT