Global patent index - EP 1015525 A1

EP 1015525 A1 2000-07-05 - DYES WITH OPTICALLY VARIABLE PROPERTIES

Title (en)

DYES WITH OPTICALLY VARIABLE PROPERTIES

Title (de)

FARBMITTEL MIT OPTISCH VARIABLEN EIGENSCHAFTEN

Title (fr)

COLORANTS A PROPRIETES OPTIQUEMENT VARIABLES

Publication

EP 1015525 A1 (DE)

Application

EP 98946414 A

Priority

  • DE 19738642 A
  • EP 9805350 W

Abstract (en)

[origin: DE19738642A1] The present invention relates to cross-linkable liquid crystal compounds containing at least one spacer, at least one mesogenic group and at least one chiral residue of the formula (1), wherein said compounds may be used as dyes having optically variable properties.

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

C09K 19/30; C09D 5/36; C09K 19/00; C09K 19/38; C09K 19/58

IPC 8 full level (invention and additional information)

C07C 69/773 (2006.01); C09D 5/36 (2006.01); C09K 19/00 (2006.01); C09K 19/30 (2006.01); C09K 19/50 (2006.01); C09K 19/58 (2006.01)

CPC (invention and additional information)

C09D 5/36 (2013.01); C09K 19/00 (2013.01); C09K 19/30 (2013.01); C09K 19/586 (2013.01)

Citation (search report)

See references of WO 9911734A1

Designated contracting state (EPC)

CH DE ES FR GB IT LI

EPO simple patent family

DE 19738642 A1 19990311; EP 1015525 A1 20000705; JP 2001515095 A 20010918; WO 9911734 A1 19990311

INPADOC legal status

2002-03-20 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020126

2001-07-04 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010515

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000404

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE ES FR GB IT LI