公开(公告)号：DE4290190D2

公开(公告)日：1993-02-18

申请号：DE4290190

申请日：1992-01-14

Applicant: HOECHST AG

Inventor： ROESCH NORBERT ,  WEGENER PETER ,  WINGEN RAINER

IPC: G02F1/1337

公开(公告)号：NO922135L

公开(公告)日：1992-07-17

申请号：NO922135

申请日：1992-05-29

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  HARADA TAKAMASA ,  ILLIAN GERHARD ,  ROESCH NORBERT ,  WINGEN RAINER

IPC: C09K20060101 ,  C09K19/02 ,  C09K19/34 ,  C09K19/52 ,  C09K19/58

公开(公告)号：NO922135A

公开(公告)日：1992-07-17

申请号：NO922135

申请日：1992-05-29

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  HARADA TAKAMASA ,  ILLIAN GERHARD ,  ROESCH NORBERT ,  WINGEN RAINER

IPC: C09K20060101 ,  C09K19/02 ,  C09K19/34 ,  C09K19/52 ,  C09K19/58

CPC classification number: C09K19/3497 ,  C09K19/0225 ,  C09K19/3488 ,  C09K19/3491 ,  C09K19/584 ,  C09K2019/3438

公开(公告)号：ZA9009635B

公开(公告)日：1992-06-24

申请号：ZA9009635

申请日：1990-11-30

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  CLAUS ESCHER ,  ROESCH NORBERT ,  NORBERT ROESCH ,  HARADA TAKAMASA ,  TAKAMASA HARADA ,  WINGEN RAINER ,  RAINER WINGEN ,  ILLIAN GERHARD ,  GERHARD ILLIAN

IPC: C09K19/02 ,  C09K19/54 ,  C09K19/58 ,  G02F ,  C09K ,  G09F

CPC classification number: C09K19/0225 ,  C09K19/54 ,  C09K19/58

公开(公告)号：ZA912699B

公开(公告)日：1991-12-24

申请号：ZA912699

申请日：1990-04-15

Applicant: HOECHST AG

Inventor： HARADA TAKAMASA ,  TAKAMASA HARADA ,  ROESCH NORBERT ,  NORBERT ROESCH ,  WINGEN RAINER ,  RAINER WINGEN

IPC: C09K19/54 ,  C09K19/58 ,  G02F1/137 ,  C09K ,  G02F ,  G09F

Abstract: The occurrence of twist states in FLC displays can be suppressed by adding ionophores to FLC mixtures. Applicable ionophores are amides of the general formula I (I) wherein R1, R2, R3 and R4 e.g. are alkyl, cyclohexyl, phenyl or benzyl and X is alkylene with -CH2-groups being replaced by -O-, 1,2-phenylene or 1,2-cyclohexylene.

公开(公告)号：FI911721A0

公开(公告)日：1991-04-10

申请号：FI911721

申请日：1991-04-10

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  ILLIAN GERHARD ,  ROESCH NORBERT ,  HARADA TAKAMASA

IPC: C07D225/02 ,  G02F1/133 ,  C07D273/08 ,  C07D323/00 ,  C07D405/12 ,  C07D498/08 ,  C09K19/54 ,  C09K19/56 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/141 ,  G09F9/35 ,  G02F

Abstract: Addition of coronands and cryptands to FLC-mixtures makes it possible to bring the FLC material into a homogeneous "bookshelf" or "quasi-bookshelf" geometry. When such a FLC mixture is used, displays which have been shock-damaged can be regenerated by applying a suitable electric field for a short period of time.

公开(公告)号：FI911720A0

公开(公告)日：1991-04-10

申请号：FI911720

申请日：1991-04-10

Applicant: HOECHST AG

Inventor： HARADA TAKAMASA ,  ROESCH NORBERT ,  WEGENER PETER

IPC: C09K19/06 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/40 ,  C09K19/54 ,  C09K19/56 ,  C09K19/58 ,  G02F1/13 ,  G02F1/137 ,  C09K

Abstract: A liquid-crystal mixture comprising at least two components and containing, as one component, a macrocyclic compound of the formula (1) … … where a, b, c, d, e and f, independently of one another, are an integer from zero to 4, where a+b+c+d+e+f is >/= 7, and -A-, -B-, -C-, -D-, -E- and -F- are identical or different and are, for example, -CH2-, -CH=CH-, -CO- or -COO-,… results, in FLC displays, in the formation of uniform alignment and in the avoidance of twist states, which is expressed in significantly improved contrast.

公开(公告)号：DE59208248D1

公开(公告)日：1997-04-24

申请号：DE59208248

申请日：1992-08-19

Applicant: HOECHST AG

Inventor： MANERO JAVIER ,  ROESCH NORBERT

IPC: C07D273/00 ,  C07D273/01 ,  C07D273/08 ,  C07D285/00 ,  C07D291/02 ,  C07F7/07 ,  C09K19/54 ,  C09K19/58 ,  G02F1/13 ,  G02F1/1337 ,  C07D257/02 ,  C07D259/00

Abstract: Decomposition-sensitive complex ligands can be stabilised by derivatisation with the aid of bulky secondary or tertiary carboxylic or sulphonic acids. These stabilised derivatives can be added to alignment layers and liquid-crystal mixtures and increase the contrast and brightness of the FLC display.

公开(公告)号：NO924808A

公开(公告)日：1993-02-01

申请号：NO924808

申请日：1992-12-11

Applicant: HOECHST AG

Inventor： HARADA TAKAMASA ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  OHLENDORF DIETER ,  RIEGER HEINZ ,  ROESCH NORBERT

IPC: C09K19/52 ,  G02F20060101 ,  G02F1/1341

公开(公告)号：NO924720L

公开(公告)日：1992-12-07

申请号：NO924720

申请日：1992-12-07

Applicant: HOECHST AG

Inventor： HARADA TAKAMASA ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  OHLENDORF DIETER ,  RIEGLER HEINZ ,  ROESCH NORBERT

IPC: G02F20060101 ,  G02F1/1341