Global Patent Index - EP 0258430 A1

EP 0258430 A1 19880309 - NEMATIC LIQUID CRYSTAL PHASES.

Title (en)

NEMATIC LIQUID CRYSTAL PHASES.

Title (de)

NEMATISCHE FLÜSSIGKRISTALLPHASE.

Title (fr)

PHASES DE CRISTAUX LIQUIDES NEMATIQUES.

Publication

EP 0258430 A1 19880309 (DE)

Application

EP 87902459 A 19870213

Priority

DE 3606312 A 19860227

Abstract (en)

[origin: DE3606312A1] Nematic liquid crystal phases with at least two liquid crystal components, of which at least one is a chiral compound, characterized by the fact that the chiral compound contains no more than one chiral centre, the chiral centre is a component part of a bridge with an even number of bridge elements between two cyclic mesogenic residues.

Abstract (fr)

Phases de cristaux liquides nématiques comportant au moins deux constituants de cristaux liquides, dont au moins un est un composé chiral, caractérisées en ce que le composé chiral ne contient pas plus d'un seul centre chiral, le centre chiral étant un élément constituant d'un pont avec un nombre égal d'éléments de pont entre deux résidus mésogènes cycliques.

IPC 1-7

C09K 19/20; C09K 19/30; C09K 19/34; C09K 19/42

IPC 8 full level

G02F 1/137 (2006.01); C09K 19/06 (2006.01); C09K 19/20 (2006.01); C09K 19/30 (2006.01); C09K 19/32 (2006.01); C09K 19/34 (2006.01); C09K 19/42 (2006.01); C09K 19/54 (2006.01)

CPC (source: EP)

C09K 19/2028 (2013.01); C09K 19/3001 (2013.01); C09K 19/321 (2013.01); C09K 19/3402 (2013.01); C09K 19/3441 (2013.01); C09K 19/3444 (2013.01); C09K 19/3466 (2013.01); C09K 19/3475 (2013.01); C09K 19/42 (2013.01); C09K 2019/3422 (2013.01)

Citation (search report)

See references of WO 8705316A1

Designated contracting state (EPC)

CH DE FR GB LI

DOCDB simple family (publication)

DE 3606312 A1 19870903; EP 0258430 A1 19880309; JP S63502756 A 19881013; WO 8705316 A1 19870911

DOCDB simple family (application)

DE 3606312 A 19860227; EP 8700074 W 19870213; EP 87902459 A 19870213; JP 50241587 A 19870213