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 20010321 (EN)

Application

EP 99924854 A 19990503

Priority

• EP 9902952 W 19990503
• IT MI980991 A 19980507

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

C09K 9/02; C07D 498/20; G03C 1/685

IPC 8 full level

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

CPC (source: EP)

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

DOCDB simple family (publication)

WO 9957219 A1 19991111; AU 4136899 A 19991123; EP 1084208 A1 20010321; IT MI980991 A1 19991107

DOCDB simple family (application)

EP 9902952 W 19990503; AU 4136899 A 19990503; EP 99924854 A 19990503; IT MI980991 A 19980507