Title:
フッ素化フルオレン誘導体
Document Type and Number:
Japanese Patent JP2004531508
Kind Code:
A
Abstract:
The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1-(-A1-Z1-)k1-(-A2-Z2-)k2-W-(-Z3-A3-)k3-(-Z4-A4-)k4-R2I in which W denotes the sub-formula L1 and L2, independently of one another, are H, F, Cl, -CH2F, -CHF2 or -CF3, with the proviso that L1 and L2 are not both H, L3 and L4, independently of one another, are H or F, and R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, Z4, k1, k2, k3 and k4 are as defined above. The invention furthermore relates to liquid-crystalline media and to optical and electro-optical display elements.
Inventors:
Bremer, Matthias
Paulut, Detreff
Klasun-Memmer, Melanie
Paulut, Detreff
Klasun-Memmer, Melanie
Application Number:
JP2002578351A
Publication Date:
October 14, 2004
Filing Date:
March 07, 2002
Export Citation:
Assignee:
Merck Patent Gesellschaft mit beschraenkter Haftung
International Classes:
C07C22/08; C07C23/18; C07C23/40; C07C25/22; C07C25/24; G02F1/13; C07C43/225; C07C49/755; C09K19/32; C09K19/54; (IPC1-7): C07C23/40; C07C43/225; C09K19/32; C09K19/54; G02F1/13
Domestic Patent References:
| JP2001064216A | 2001-03-13 | |||
| JP2001048823A | 2001-02-20 | |||
| JP2004529867A | 2004-09-30 |
Foreign References:
| WO2001010803A1 | 2001-02-15 |
Attorney, Agent or Firm:
Kiyoji Kuzuwa