Title (en)

PHOTOCHROMATIC COMPOUNDS, PREPARATION, USE IN POLYMERIC MATERIALS

Title (de)

PHOTOCHROME VERBINDUNGEN, HERSTELLUNG UND VERWENDUNG IN POLYMERE MATERIALIEN

Title (fr)

COMPOSES PHOTOCHROMATIQUES, LEUR PREPARATION ET LEUR UTILISATION DANS DES MATERIAUX POLYMERES

Publication

EP 1119572 A1 20010801 (EN)

Application

EP 99950636 A 19991007

Priority

• EP 9907446 W 19991007
• IT MI982175 A 19981009

Abstract (en)

[origin: WO0021968A1] Photochromatic compounds having general formula (I). The above photochromatic compounds can be used in polymeric materials, obtaining photochromatic articles.

IPC 1-7

C07F 7/21; G03C 1/685

IPC 8 full level

C07F 7/21 (2006.01); G03C 1/685 (2006.01)

IPC 8 main group level

C07F (2006.01); C09K (2006.01)

CPC (source: EP)

C07F 7/21 (2013.01)

Citation (search report)

See references of WO 0021968A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 0021968 A1 20000420; AR 020754 A1 20020529; EP 1119572 A1 20010801; IT 1302637 B1 20000929; IT MI982175 A1 20000410

DOCDB simple family (application)

EP 9907446 W 19991007; AR P990105101 A 19991008; EP 99950636 A 19991007; IT MI982175 A 19981009