Global Patent Index - EP 1047978 A1

EP 1047978 A1 2000-11-02 - COMPOUND, COMPOSITION AND USE

Title (en)

COMPOUND, COMPOSITION AND USE

Title (de)

VERBINDUNG, ZUSAMMENSETZUNG UND IHRE VERWENDUNG

Title (fr)

COMPOSE, COMPOSITION, ET LEUR UTILISATION

Publication

EP 1047978 A1 (EN)

Application

EP 98952921 A

Priority

  • GB 9803389 W
  • GB 9723856 A

Abstract (en)

[origin: WO9924873A1] There is described a negative charge control agent for use in electroreprography which comprises one or more pyrazolones of Formula (I), which includes all electroreprographically effective forms of such compounds selected from one ore more of the following (including mixtures thereof and combinations thereof in the same species): stereoisomers, zwitterions, polymorphs, solvates, isotopic forms; and salts thereof; where in Formula (I): R<1>, R<2> and R<3> each independently represents one or more substituents selected from one or more of: H, hydroxy, mercapto, amino, nitro, sulpho, sulpheno, sulphino, carboxy, halo, cyano, optionally substituted C1-30 hydrocarbyl.

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

G03G 9/097; C07D 231/26

IPC 8 full level (invention and additional information)

C07D 231/20 (2006.01); C07D 231/22 (2006.01); C07D 231/26 (2006.01); C09K 3/00 (2006.01); G03G 9/097 (2006.01)

CPC (invention and additional information)

G03G 9/09758 (2013.01); C07D 231/20 (2013.01); C07D 231/22 (2013.01)

Citation (search report)

See references of WO 9924873A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9924873 A1 19990520; AU 1046399 A 19990531; CA 2309946 A1 19990520; EP 1047978 A1 20001102; GB 9723856 D0 19980107; JP 2001523014 A 20011120

INPADOC legal status


2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030603

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000904

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE