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：NO902795A

公开(公告)日：1990-12-27

申请号：NO902795

申请日：1990-06-22

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  HEMMERLING WOLFGANG ,  ILLIAN GERHARD ,  HARADA TAKAMASA ,  MURAKAMI MIKIO

IPC: G02F1/1337 ,  C09K19/02 ,  C09K19/34 ,  C09K19/58 ,  G02F1/141 ,  G02F1/13 ,  G02F1/133

CPC classification number: C09K19/58 ,  C09K19/0225 ,  C09K19/588 ,  G02F1/141

公开(公告)号：NO902111A

公开(公告)日：1990-11-14

申请号：NO902111

申请日：1990-05-11

Applicant: HOECHST AG

Inventor： MEIJERE ARMIN DE ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  HARADA TAKAMASA ,  HEMMERLING WOLFGANG ,  ILLIAN GERHARD ,  MUELLER INGRID ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07C13/04 ,  C07C13/28 ,  C07C22/00 ,  C07C25/00 ,  C07C43/184 ,  C07C43/21 ,  C07C69/92 ,  C07C255/45 ,  C07D213/30 ,  C07D237/08 ,  C07D237/14 ,  C07D237/16 ,  C07D237/18 ,  C07D239/26 ,  C07D239/34 ,  C07D239/38 ,  C07D241/12 ,  C07D241/18 ,  C07D285/12 ,  C07D285/125 ,  C07D285/13 ,  C07D405/12 ,  C09K19/20 ,  C09K19/30 ,  C09K19/34

CPC classification number: C07D213/30 ,  C07C43/184 ,  C07C43/21 ,  C07C69/92 ,  C07D239/26 ,  C07D239/34 ,  C09K19/30 ,  C09K19/3066 ,  C09K19/3444 ,  C09K19/3469

公开(公告)号：NO893778L

公开(公告)日：1990-03-26

申请号：NO893778

申请日：1989-09-22

Applicant: HOECHST AG

Inventor： MUELLER INGRID ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  HEMMERLING WOLFGANG ,  ILLIAN GERHARD ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07D317/24 ,  C07D317/30 ,  C07D317/32 ,  C07D405/12 ,  C07D405/14 ,  C09K19/34 ,  C09K19/54 ,  G09F9/35 ,  C09K19/58

Abstract: Novel optically active esters of 5-ethyl- and 5-vinyl-1,3- dioxolane-4-carboxylic acid, their use as dopes in liquid-crystal mixtures, and liquid-crystal mixtures containing the novel esters. Optically active 1,3-dioxolanyl derivatives of the general formula (I) are suitable as dopes in liquid-crystal mixtures. The symbols in the general formula have the following meanings: R has an analogous structure to the moiety on the right of X in the general formula or is an alkyl or alkylene radical, which may be substituted, R and R are H or alkyl, which may also be substituted [R and R are alternatively, together with the C(2) of the dioxolane ring, a cycloaliphatic radical] R is vinyl or ethyl, with the proviso that at least one radical R is vinyl or ethyl if R is analogous to the moiety on the right of X in the formula (I), -A , -A and -A are aromatic, heterocyclic or aliphatic ring systems, -M and -M are -CO-O, -O-CO, -CH2CH2, -CH=CH, -CH2O,-OCH2 or -C=C, and X is O, S or O-CO-O. The particular advantage of the compound of the general formula (I) is that it is able to induce high twisting power in a cholesteric phase.

公开(公告)号：NO893242L

公开(公告)日：1990-02-14

申请号：NO893242

申请日：1989-08-11

Applicant: HOECHST AG

Inventor： HEMMERLING WOLFGANG ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  INOGUCHI YOSHIO ,  MUELLER INGRID ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07F7/08 ,  C07F7/10 ,  C09K19/40 ,  C09K19/42 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141

Abstract: The novel silylalkyl or -alkenyl compounds conform to the general formula (I) in which A , A and A are aromatic or heteroaromatic molecular units such as 1,4-phenylene or pyrimidine-2,5-diyl which are linked via a single bond (where k and m are zero) or via functional groups M and M , such as CO-O or CH2-O; j, k, l, m and n are zero or 1 (j + l + n = 2 or 3), the radicals R , R , R and R are H or alkyl/alkenyl or cycloalkyl, the radicals R , R and R have a comparable meaning (H); R is alkyl/alkenyl or a substituent known from LC chemistry, such as an alpha -haloalkanoic acid radical. The compounds have liquid-crystalline phases, which are in some cases broad and polymorphous.

公开(公告)号：NO893242A

公开(公告)日：1990-02-14

申请号：NO893242

申请日：1989-08-11

Applicant: HOECHST AG

Inventor： HEMMERLING WOLFGANG ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  INOGUCHI YOSHIO ,  MUELLER INGRID ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07F7/08 ,  C07F7/10 ,  C09K19/40 ,  C09K19/42 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141

CPC classification number: C07F7/0812 ,  C07F7/0818 ,  C09K19/406

公开(公告)号：NO893241L

公开(公告)日：1990-02-14

申请号：NO893241

申请日：1989-08-11

Applicant: HOECHST AG

Inventor： HEMMERLING WOLFGANG ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  INOGUCHI YOSHIO ,  MUELLER INGRID ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07D307/24 ,  C07D307/56 ,  C07D405/12 ,  C07D405/14 ,  C07D407/12 ,  C07D407/14 ,  C07D409/12 ,  C07D409/14 ,  C07D417/12 ,  C07D417/14 ,  C09K19/54 ,  C09K19/58 ,  G02F1/137 ,  G02F1/141 ,  C09K19/30

Abstract: Optically active tetrahydrofuran-2-carboxylic acid esters containing a mesogenic molecular building block are suitable as dopes in liquid-crystal mixtures. They result in liquid-crystalline ferroelectric phases having short switching times and in electroclinic phases having high electroclinic coefficients. A further advantage is that they induce a helix of very low pitch, so they are also suitable for helix compensation in LC mixtures. The compounds are symbolised by the general formula in which the symbols and indices essentially have the following meanings: R = alkyl/alkenyl or tetrahydrofurancarbonyloxy or -thio; j, l and n = zero, 1 or 2; k and m = zero or 1; -A , -A and -A = phenylene, cycloalkylene or corresponding N-, O- or S-containing heterocycles; -M and -M = bridges, such as -CO-O-, -OCH2- or -CH=CH-; and X = O or S.

公开(公告)号：NO895181D0

公开(公告)日：1989-12-21

申请号：NO895181

申请日：1989-12-21

Applicant: HOECHST AG

Inventor： ESCHER CLAUS ,  DUEBAL HANS-ROLF ,  MURAKAMI MIKIO ,  ILLIAN GERHARD ,  OHLENDORF DIETER

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/141 ,  G02F

公开(公告)号：NO893778D0

公开(公告)日：1989-09-22

申请号：NO893778

申请日：1989-09-22

Applicant: HOECHST AG

Inventor： MUELLER INGRID ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  HEMMERLING WOLFGANG ,  ILLIAN GERHARD ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07D317/24 ,  C07D317/30 ,  C07D317/32 ,  C07D405/12 ,  C07D405/14 ,  C09K19/34 ,  C09K19/54 ,  G09F9/35 ,  C07D405/00

Abstract: Novel optically active esters of 5-ethyl- and 5-vinyl-1,3- dioxolane-4-carboxylic acid, their use as dopes in liquid-crystal mixtures, and liquid-crystal mixtures containing the novel esters. Optically active 1,3-dioxolanyl derivatives of the general formula (I) are suitable as dopes in liquid-crystal mixtures. The symbols in the general formula have the following meanings: R has an analogous structure to the moiety on the right of X in the general formula or is an alkyl or alkylene radical, which may be substituted, R and R are H or alkyl, which may also be substituted [R and R are alternatively, together with the C(2) of the dioxolane ring, a cycloaliphatic radical] R is vinyl or ethyl, with the proviso that at least one radical R is vinyl or ethyl if R is analogous to the moiety on the right of X in the formula (I), -A , -A and -A are aromatic, heterocyclic or aliphatic ring systems, -M and -M are -CO-O, -O-CO, -CH2CH2, -CH=CH, -CH2O,-OCH2 or -C=C, and X is O, S or O-CO-O. The particular advantage of the compound of the general formula (I) is that it is able to induce high twisting power in a cholesteric phase.

公开(公告)号：NO893242D0

公开(公告)日：1989-08-11

申请号：NO893242

申请日：1989-08-11

Applicant: HOECHST AG

Inventor： HEMMERLING WOLFGANG ,  DUEBAL HANS-ROLF ,  ESCHER CLAUS ,  ILLIAN GERHARD ,  INOGUCHI YOSHIO ,  MUELLER INGRID ,  MURAKAMI MIKIO ,  OHLENDORF DIETER ,  WINGEN RAINER

IPC: G02F1/13 ,  C07F7/08 ,  C07F7/10 ,  C09K19/40 ,  C09K19/42 ,  C09K19/46 ,  G02F1/137 ,  G02F1/141 ,  C07F ,  C09K19/00

Abstract: The novel silylalkyl or -alkenyl compounds conform to the general formula (I) in which A , A and A are aromatic or heteroaromatic molecular units such as 1,4-phenylene or pyrimidine-2,5-diyl which are linked via a single bond (where k and m are zero) or via functional groups M and M , such as CO-O or CH2-O; j, k, l, m and n are zero or 1 (j + l + n = 2 or 3), the radicals R , R , R and R are H or alkyl/alkenyl or cycloalkyl, the radicals R , R and R have a comparable meaning (H); R is alkyl/alkenyl or a substituent known from LC chemistry, such as an alpha -haloalkanoic acid radical. The compounds have liquid-crystalline phases, which are in some cases broad and polymorphous.