Global patent index - EP 1084208 A1

EP 1084208 A1 2001-03-21 - PHOTOCHROMIC COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE IN POLYMERIC MATERIALS

Title (en)

PHOTOCHROMIC COMPOUNDS, PROCESS FOR THEIR PREPARATION AND THEIR USE IN POLYMERIC MATERIALS

Title (de)

PHOTOCHROME VERBINDUNGEN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG IN POLYMEREN

Title (fr)

COMPOSES PHOTOCHROMES, PROCEDES DE LEUR PREPARATION ET DE LEUR UTILISATION DANS DES SUBSTANCES POLYMERES

Publication

EP 1084208 A1 (EN)

Application

EP 99924854 A

Priority

  • EP 9902952 W
  • IT MI980991 A

Abstract (en)

[origin: WO9957219A1] Photochromatic compounds belonging to the group of spiro-isoindolino-oxazines having general formula (I). These photochromatic compounds can be used in polymeric materials.

IPC 1-7 (main, further and additional classification)

C09K 9/02; C07D 498/20; G03C 1/685

IPC 8 full level (invention and additional information)

C07D 498/20 (2006.01); C09K 9/02 (2006.01); G03C 1/685 (2006.01)

CPC (invention and additional information)

C07D 498/20 (2013.01); C09K 9/02 (2013.01); G03C 1/685 (2013.01)

Citation (search report)

See references of WO 9957219A1

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9957219 A1 19991111; AU 4136899 A 19991123; EP 1084208 A1 20010321; IT MI980991 A1 19991108

INPADOC legal status

2005-02-23 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040811

2004-01-28 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20031215

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001031

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB