Merck Patent Gmbh

Merck Patent Gesellschaft MIT Beschrankter Haftung

John Patrick

Robert Hammond-Smith

Matthias Kuntz

Rodney Riddle

Louise Diane Farrand

Kevin Adlem

Achim Goetz

Peter Best

Cecile Schott

Herbert Plach

Georg Bernatz

David Coates

Peer Kirsch

Michael Heckmeier

Simon Greenfield

Donald Gordon Graham

Elvira Montenegro

Andreas Taugerbeck

Mark John Goulding

Markus Czanta

Mark Andrew Verrall

Alison Linda May

Andreas Ruhl

Peter Schmitt

Reiner Delp

Michael Ukelis

Gerald Unger

Christopher John Dunn

Guy Gregory

Janice McCreary

John Philip Argent

Siegfried Schmitzer

Tony Bleasdale

Peter Howarth

Allan Marshall

Christopher J Dunn

Donal Gordon Graham

The instant invention relates to mesogenic systems comprising a) a polymeric component, component A, obtained or obtainable from polymerisation of a precursor comprising one or more mesogenic mono-reactive compounds, one or more di-reactive compounds, which optionally are also mesogenic compounds and optionally a photo-initiator and a low molecular weight component, component B, comprising one or more mono-reactive, mesogenic compounds, one or more mesogenic compounds and one or more chiral dopants, exhibiting a Blue Phase, as well as to the use of these systems in deices and to these devices.

Liquid crystal system and liquid crystal display

The invention relates to new cyclohexylene reactive mesogens (RM), polymers derived thereof, liquid crystal (LC) media comprising them, and the use of the compounds, polymers and liquid crystalline media in optical, electrooptical, electronic, semiconducting or luminescent components or devices, in decorative, security, cosmetic or diagnostic applications, especially in the polymer stabilised blue phase.

Cyclohexylene reactive mesogens and their applications

The instant invention relates to mesogenic systems comprising a) a polymeric component, component A, obtained or obtainable from polymerization of a precursor comprising one or more mesogenic mono-reactive compounds, one or more di-reactive compounds, which optionally are also mesogenic compounds and optionally a photo-initiator and a low molecular weight component, component B, comprising one or more mono-reactive, mesogenic compounds, one or more mesogenic compounds and one or more chiral dopants, exhibiting a Blue Phase, as well as to the use of these systems in deices and to these devices.

The instant invention relates to mesogenic media comprising one or more compounds which comprise two or more mesogenic groups two of which are linked to the ortho-positions of an aromatic ring, preferably of formula (I) wherein the parameters are as specified in the text, preferably the instant invention relates to mesogenic media showing a blue phase and their use in electro-optical light modulation elements and their respective use in displays, as well as to such devices. The instant invention further relates to compounds of formula (I). 

Mesogenic compounds, liquid crystal medium and liquid crystal display

The invention relates to a method of preparing a birefringent marking by printing a polymerisable liquid crystal material onto at least one side of a substrate and polymerising the liquid crystal material, to a birefringent marking obtained by this method, and to the use of the birefringent marking for decorative, security, authentification and identification applications.

Birefringent marking

The present invention relates to a liquid crystalline mixture comprising   A, Z, A, L, L, X, m and n have the meanings given in claimand their use in TFT, TN, IPS applications and expecially for devices utilizing electro-optical effects in an optically isotropic state.

Liquid crystalline medium

The invention relates to the use of a printable polymerisable liquid crystal material as printable system for the preparation of polymers and pigments, to printable polymerisable liquid crystal materials and pigments and polymers prepared thereof, and to the use of the printable materials, pigments and polymers in optical, electrooptical, semiconductor and electronic applications and as birefringent and optically variable markings for decorative, security, authentification or identification applications.

Printable liquid crystal material

The invention relates to liquid crystal flakes, to methods of their preparation and to their use as pigments for security or decorative applications or optical elements.

Flakes comprising non-chiral liquid crystal material

An anisotropic polymer film with improved alignments prepared by coating onto a substrate with a structured surface. The polymer films thereby obtained are useful in optical and electrooptical devices for decorative and security applications.

Method of preparing an anisotropic polymer film on a substrate with a structured surface

The invention relates to an optically variable marking comprising a semiopaque substrate with a first surface that is covered with an optically variable layer that is for example a liquid crystal polymer layer or a layer comprising pearlescent pigments, and a second surface that is partially covered with a metal layer in the shape of a pattern, to methods of its preparation and to its use for decorative or security applications.

Optically variable marking

A method for generating a 3-dimensional effect involves providing at least one first image layer of a chiral liquid crystal material, and at least one second image layer of a chiral liquid crystal material, wherein one of the first and second image layers reflects right-handed circularly polarised light and the other reflects left-handed circularly polarised light, is suitable creating a 3-dimensional image that can be used for decorative and security applications.

Method of generating a 3-dimensional effect

The invention relates to a birefringent marking comprising a liquid crystal material. The invention further relates to method of providing such a birefringent marking and to the use of the birefringent marking for decorative or security applications.

An anisotropic polymer film comprising a polymeriZed chiral liquid crystal material with helically twisted structure and having areas with different helical twist sense is useful for decorative or security applications.

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Warham, United Kingdom

John Patrick