181 |
Liquid-crystalline composition for printing inks, coatings and counterfeit-proof marking of articles |
US10744015 |
2003-12-24 |
US06899824B2 |
2005-05-31 |
Frank Meyer; Hiroki Ishida; Peter Schuhmacher; Horst Neumann |
A process for printing or coating a substrate with a liquid-crystalline composition and at least one non-liquid-crystalline print or coating as a multilayer and a substrate produced by this process is described. The liquid-crystalline composition contains at least one compound having two polymerizable groups and at least one compound having only one polymerizable group, and optional further additives. The non-liquid-crystalline print or coating contains one or more IR- or UV-absorbent or fluorescent dye or pigment. The process and the printed substrate are useful in producing counterfeiting-proof marking of articles. |
182 |
Two-phase film materials and method for making |
US10946850 |
2004-09-21 |
US20050104037A1 |
2005-05-19 |
Pavel Lazarev; Elena Sidorenko |
Two-phase film materials and methods for their fabrication are provided. The two-phase film materials typically comprise a first phase, comprising a crystalline film of supramolecules and a second phase, comprising a polymer film. The method of fabricating two-phase film materials comprise the steps of preparing a lyotropic liquid crystal of supramolecules comprising molecules of organic compound comprising at least one polar group; depositing a layer of the lyotropic liquid crystal; applying an external orienting action to the LLC layer; and treating the LCC layer with a binding agent. |
183 |
Epitaxial organic layered structure and method for making |
US10947041 |
2004-09-21 |
US20050103258A1 |
2005-05-19 |
Pavel Lazarev |
The present invention relates to layered organic structures in which anisotropic crystalline seed layers control crystalline structure of the subsequent epitaxial organic layers. The structure comprises in sequence a substrate, a globally ordered crystalline seed layer with intermolecular spacing of 3.4±0.3 Å, and at least one epitaxial layer of an organic compound. The seed layer is comprised of disc-shaped molecules of at least one polycyclic organic compound with conjugated π-system. At least one layer of an organic compound is epitaxially deposited onto the seed layer. The present invention also provides a method for obtaining a layered organic structure. The method comprises forming of a globally ordered anisotropic crystalline seed layer on a substrate by means of the Cascade Crystallization Process. The seed layer has an intermolecular spacing of 3.4±0.3 Å and it is formed by rodlike supramolecules comprised of disc-shaped molecules of at least one polycyclic organic compound with conjugated π-system. Epitaxially depositing one epitaxial organic layer from the vapor or liquid phase onto the seed layer so as to obtain a layered organic structure. |
184 |
Polymer beads |
US10678272 |
2003-10-06 |
US06860927B2 |
2005-03-01 |
Matthias Kuntz; David Coates; Simon Greenfield; John Patrick |
The invention relates to polymer beads comprising an anisotropic polymer material with helically twisted structure, to their use in reflective films, spraying or printing inks or as pigments, for optical or electrooptical, decorative or security applications, to a reflective film comprising one or more polymer beads in a transmissive binder, and to a security marking or security device comprising one or more polymer beads or comprising a reflective film. |
185 |
Electro-optical glazing structures having reflection and transparent modes of operation |
US10804559 |
2004-03-19 |
US20050007506A1 |
2005-01-13 |
Sadeg Faris; Le Li; Jian-Feng Li |
Electro-optical glazing structures having total-reflection and semi-transparent and totally-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications. |
186 |
Electro-optical glazing structures having reflection and transparent modes of operation |
US10804537 |
2004-03-19 |
US20050007505A1 |
2005-01-13 |
Sadeg Faris; Le Li; Jian-Feng Li |
Electro-optical glazing structures having total-reflection and semi-transparent and totally-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications. |
187 |
Coloring media having improved brightness and color characteristics |
US10799936 |
2004-03-13 |
US20040247825A1 |
2004-12-09 |
Sadeg
M.
Faris; Le
Li |
Disclosed are novel reflective microflakes for use in making nulladditive-primarynull coloring media having improved reflection characteristics over the red, green and blue super-bright color characteristics, and nullsuper-whitenull coloring media having Magnesium-Oxide like color characteristics. The coloring media of the present invention provides a palette of colors for imparting color characteristics or forming color images upon surfaces of arbitrary surface geometry. In the preferred embodiments of the invention, the microflakes are made from cholesteric liquid crystal (CLC) material, wherein the pitch of the helices of the liquid crystal molecules in each CLC microflake varies along the thickness dimension (i.e. transverse to the surface) thereof. Depending on the final spiral structure of the materials utilized, the CLC circularly polarizing materials reflect either left-handed or right-handed circularly polarized light. In a preferred embodiment, each CLC microflake of additive-primary coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its tuned reflection band. Also, each CLC microflake of super-white coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its broadband reflection band. The super-white and additive-primary coloring media of the present invention can be used to produce virtually any color. By virtue of the circularly polarizing reflection characteristics of the CLC microflakes, the resulting coloring media can be used to form polarization-encoded spatially multiplexed images (SMI) on radiation absorbing surfaces, to produce stereoscopic 3-D images when viewed through electrically-passive polarization glasses. The coloring media may also be used in 2-D and 3-D xerographic printing processes. |
188 |
Stratified phase-separated composite comprising a photo-polymerization dye |
US10203576 |
2002-08-09 |
US06818152B2 |
2004-11-16 |
Roel Penterman; Dirk Jan Broer |
A stratified-phase-separated composite comprising a polymeric layer and a liquid layer is obtained by photo-polymerizing a composition comprising a liquid and a photo-polymerizable monomer. In order to obtain well-stratified composites which may contain liquid which does not absorb radiation used to photo-polymerize, the composition and composite comprises a dye which is adapted to absorb radiation used to carry out the photo-polymerization and which selectively accumulates in the polymeric layer. |
189 |
Stacked liquid cell with liquid-polymer stratified phase separated composite |
US10203577 |
2002-08-09 |
US06788360B2 |
2004-09-07 |
Roel Penterman; Dirk Jan Broer |
A stacked liquid cell, such as a stacked liquid crystal cell, comprises a stack of liquid layers and substrate layers between which the liquid layers are dispersed. The stack comprises a liquid and polymeric substrate layers made from a stratified-phase-separated composite. Being part of a stratified-phase-separated composite, in particular one manufactured in accordance with a single-substrate method, the polymeric layer may have a relative small thickness compared a conventional substrate layer which results in a stacked liquid cell having a reduced thickness or, more particular, a stacked liquid cell having a reduced thickness between subjacent liquid layers giving a reduction in parallax effects. A method of manufacturing a liquid cell involves stratifying, on a substrate, a layer of stratified-phase-separable composition into a liquid layer and a polymeric layer to form a stratified-phase-separated composite, the polymeric layer serving as one of the substrate of the liquid cell. |
190 |
Liquid crystalline ion conductor and method for preparation thereof |
US10473673 |
2003-12-29 |
US20040169158A1 |
2004-09-02 |
Takashi
Kato; Kiyoshi
Kanie; Masafumi
Yoshio; Hiroyuki
Ohno; Masahiro
Yoshizawa |
A novel liquid-crystalline ionic conductor, which is useful in the electric, electronic, chemical and bioengineering fields, as an anisotropic reaction solvent, ionic conductor, electric field-responsible conductor or the like, and a method for producing the same, is provided. The liquid-crystalline ionic conductor is obtained by mixing an organic molten salt with a liquid-crystalline organic molecule or a liquid-crystalline inorganic molecule, which comprises a moiety miscible to the organic molten salt and a moiety that shows liquid-crystalline orientation, thereby forming a liquid-crystalline ionic conductor, wherein the organic molten salt is assembled to the liquid-crystalline molecule. |
191 |
Cubic liquid crystalline compositions and methods for their preparation |
US10728155 |
2003-12-04 |
US06773627B2 |
2004-08-10 |
Matthew Lawrence Lynch; Patrick Thomas Spicer |
Cubic liquid crystalline gel precursors, bulk cubic liquid crystalline gels, and dispersions of cubic liquid crystalline gel particles, and methods for their preparation, are disclosed. The precursors, gels, and dispersions can be used as skin penetration enhancers. The precursors, gels, and dispersions are prepared by methods employing hydrotropes that do not detrimentally affect the cubic liquid crystalline structure of the gels and particles. |
192 |
Coloring media having improved brightness and color characteristics |
US08890320 |
1997-07-09 |
US06753044B2 |
2004-06-22 |
Sadeg M. Faris; Le Li |
Disclosed are novel reflective microflakes for use in making “additive-primary” coloring media having improved reflection characteristics over the red, green and blue super-bright color characteristics, and “super-white” coloring media having Magnesium-Oxide like color characteristics. The coloring media of the present invention provides a palette of colors for imparting color characteristics or forming color images upon surfaces of arbitrary surface geometry. In the preferred embodiments of the invention, the microflakes are made from cholesteric liquid crystal (CLC) material, wherein the pitch of the helices of the liquid crystal molecules in each CLC microflake varies along the thickness dimension (i.e. transverse to the surface) thereof. Depending on the final spiral structure of the materials utilized, the CLC circularly polarizing materials reflect either left-handed or right-handed circularly polarized light. In a preferred embodiment, each CLC microflake of additive-primary coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its tuned reflection band. Also, each CLC microflake of super-white coloring media has a laminated construction in order that both the upper and lower surfaces thereof have substantially the same reflection characteristics over its broadband reflection band. The super-white and additive-primary coloring media of the present invention can be used to produce virtually any color. By virtue of the circularly polarizing reflection characteristics of the CLC microflakes, the resulting coloring media can be used to form polarization-encoded spatially multiplexed images (SMI) on radiation absorbing surfaces, to produce stereoscopic 3-D images when viewed through electrically-passive polarization glasses. The coloring media may also be used in 2-D and 3-D xerographic printing processes. |
193 |
Electrolyte composition, electrochemical cell and ionic liquid crystal monomer |
US09759363 |
2001-01-16 |
US06727023B2 |
2004-04-27 |
Michio Ono |
An electrolyte composition comprising a polymer compound formed by polymerizing an ionic liquid crystal monomer containing at least one polymerizable group. Also disclosed are an electrochemical cell, a nonaqueous secondary cell and a photoelectrochemical cell, each comprising the electrolyte composition. |
194 |
Particles and a process for preparing the same |
US10253068 |
2002-09-24 |
US06719932B2 |
2004-04-13 |
Richard Roy Clikeman; Morris Christopher Wills; Katerina Elizabeth Dukes |
Disclosed are a plurality of particles having a narrow particle size distribution, a processes for forming the same, and films containing the same. The plurality of particles, includes one or more discrete polymer shells, wherein at least one of the polymer shells is crosslinked with at least one monomer containing two or more double bonds polymerizable by free radical means; and a core material encased in the polymer shells, wherein the plurality of particles have a polydispersity of from 1.3 to 1.0. |
195 |
Lamination of liquid crystal polymer dielectric films |
US10263851 |
2002-10-03 |
US20040066478A1 |
2004-04-08 |
Donald
S.
Farquhar; Mark
D.
Poliks |
A multi-layered structure and method of formation. A page is generated by stacking N substructures (Nnull2) in an ordered sequence. A first substructure of each pair of adjacent substructures comprises liquid crystal polymer (LCP) dielectric material to be bonded with a second substructure of a pair of the adjacent substructure. The page is subjected to a temperature less than the lowest nematic-to-isotropic transition temperature of the LCP dielectric materials within the page. The dwell time and elevated pressure are sufficient to cause all LCP dielectric material within the page to plastically deform and laminate each pair of adjacent substructures without any extrinsic adhesive layer disposed between the first and second substructures of each pair of adjacent substructures. |
196 |
Electro-optical glazing structures having total-reflection and transparent modes of operation for use in dynamical control of electromagnetic radiation |
US10601761 |
2003-06-23 |
US20040061819A1 |
2004-04-01 |
Sadeg
M.
Faris; Le
Li |
Electro-optical glazing structures having total-reflection and semi-transparent and totally-transparent modes of operation which are electrically-switchable for use in dynamically controlling electromagnetic radiation flow in diverse applications. |
197 |
Multilayer non metallic reflecting flakes for cosmetics and sunscreens |
US10390587 |
2003-03-17 |
US20030210373A1 |
2003-11-13 |
Le
Li; Sadeg
Faris |
A material for protection against injurious ambient light composed of a binder mixed with non metallic reflective flakes is disclosed. |
198 |
Multilayer reflective film or pigment with viewing angle dependent reflection characteristics |
US09796732 |
2001-03-02 |
US06641874B2 |
2003-11-04 |
Matthias Kuntz; Hans-Dieter Brueckner; David Coates; Rodney Riddle |
The invention relates to multilayer reflective films and pigments showing selective reflection of light wherein the reflection characteristics are dependent on the viewing angle, characterized in that they comprises at least one reflective layer, at least one circular polarizing layer and optionally at least one optical retardation layer. The invention further relates to the use of these multilayer reflective films and pigments in optical elements, as coatings or in lacquers, inks or paints for cosmetic, decorative or security applications, to inks and paints comprising one or more multilayer reflective pigments dispersed in a light transmissive binder, and to security markings or devices comprising one or more multilayer reflective films or pigments. |
199 |
Detecting interactions at biomimetic interfaces with liquid crystals |
US10119648 |
2002-04-10 |
US20030194753A1 |
2003-10-16 |
Nicholas
Lawrence
Abbott; Jeffrey
M.
Brake |
A method of forming a liquid crystal device, includes: contacting an aqueous solution comprising a surfactant and a receptor molecule with a top surface of a liquid crystal. The liquid crystal is in a holding compartment of a substrate, and the receptor molecule is adsorbed on the top surface of the liquid crystal forming an interface between the liquid crystal and the aqueous solution. The receptor molecule is different than the surfactant. A method of detecting a compound in a flowing stream includes passing an aqueous solution over a top surface of a liquid crystal in a holding compartment of a substrate. The method also includes determining whether a change in the orientation of the liquid crystal occurs as the aqueous solution is passed over the top surface of the liquid crystal. A change in the orientation of the liquid crystal indicates the presence of the compound in the flowing stream. |
200 |
Cholesteric layered material having an improved color impression, and the production thereof |
US09648369 |
2000-08-25 |
US06605235B1 |
2003-08-12 |
Frank Meyer; Frank Prechtl; Norbert Schneider; Peter Heilmann; Volker Koch; Robert Parker; Volker Richter; Peter Schuhmacher |
The invention relates to cholesteric layered material having an improved color impression, to pigments prepared therefrom, and to a process for the production and use thereof. |