Patent application number | Description | Published |
20090039535 | Extended Wear Ophthalmic Lens - A method for making a silicone hydrogel contact lens is provided. In one embodiment, a prepolymer mixture is polymerized in a lens mold in an atmosphere having less than about ppm oxygen to form a silicone hydrogel contact lens suitable for extended wear as characterized by producing less than 10% corneal swelling after a period of continuous wear of 7 days including normal sleep periods. In one embodiment, the prepolymer mixture comprises at least one oxyperm material containing hydrophilic groups, wherein the at least one oxyperm material is a siloxane-containing macromer or monomer, at least one ionperm material, and a cross-linking agent. In certain embodiments, the polymerization of the prepolymer mixture may be carried out in an atmosphere having less than about 1000 ppm oxygen. | 02-12-2009 |
20090046242 | Extended Wear Ophthalmic Lens - An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. In one embodiment, an opthalmic lens is a copolymerization product of at least one oxyperm, at least one ionoperm, and a crosslinker. In one embodiment, a lens has a tensile modulus of less than about 3.0 MPa, yet in another embodiment, the tensile modulus is between about 0.5 to about 1.5 MPa. | 02-19-2009 |
20090075421 | Wet etching of zinc tin oxide thin films - A method of wet etching semiconductor zinc tin oxide includes submerging a semiconductor zinc tin oxide film in a bath solution. The film is partially covered with a pattern of protective material, and the bath solution etches semiconductor zinc tin oxide film not covered by the protective material. A system for wet etching semiconductor zinc tin oxide includes a bath containing a bath solution. The bath solution is effective to wet etch the semiconductor zinc tin oxide. | 03-19-2009 |
20090274911 | Liquid Crystal Display With Polymer Layer Of Varying Thickness And Method Of Producing Such A Layer - Various methods and apparatus relating to a multi-level layer ( | 11-05-2009 |
20100091229 | Compositions and Methods for Alignment Layers - Compositions, devices, and methods are provided for a switchable alignment layer coated on a substrate for a liquid crystal device comprising an attachment layer and an adjustable side-chain, where an electric field is capable of changing orientation of the adjustable side-chain between a first state and a second state. | 04-15-2010 |
20100238398 | Extended Wear Ophthalmic Lens - An ophthalmic lens suited for extended-wear periods of at least one day on the eye without a clinically significant amount of corneal swelling and without substantial wearer discomfort. In one embodiment, an opthalmic lens is a copolymerization product of at least one oxyperm, at least one ionoperm, and a crosslinker. In one embodiment, a lens has a tensile modulus of less than about 3.0 MPa, yet in another embodiment, the tensile modulus is between about 0.5 to about 1.5 MPa. | 09-23-2010 |
20120081778 | PIGMENT-BASED INK - A pigment-based ink comprises: a non-polar carrier fluid; and pigment particles suspended in the non-polar carrier fluid. The pigment particles are coated with a metal oxide that is modified with at least one silane coupling agent to introduce functional groups, steric stabilizers or both. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles. | 04-05-2012 |
20120105938 | PIGMENT-BASED INKS - A pigment-based ink includes a non-polar carrier fluid and pigment particles suspended in the non-polar carrier fluid. The pigment particles have surface functionalized anionic groups. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles. | 05-03-2012 |
20120249623 | INKJET INK COMPOSITION CONTAINING ANTI-KOGATION AGENTS - Ink compositions and methods of using the same are disclosed. An example ink composition includes an inkjet vehicle, from about 0.1 wt % to about 10 wt % of colorants, from about 0.01 wt % to about 10 wt % of anti-kogation agents, and from about 0.01 wt % to about 10 wt % of dispersed resin beads. | 10-04-2012 |
20120268806 | INKS WITH FLUORINATED MATERIAL-SURFACE MODIFIED PIGMENTS - Pigment-based inks with fluorinated material-surface modified pigments are provided. The inks include a non-polar carrier fluid, and pigment particles suspended in the non-polar carrier fluid. The pigment particles either have fluorinated acidic functional groups, which are charged through basic charge directors to give negatively charged pigment dispersions, or have fluorinated basic functional groups, which are charged thorough acidic charge directors to give positively charged pigment dispersions. A combination of an electronic display and an electronic ink is also provided, as is a method for modifying the pigment particles. | 10-25-2012 |
20120275012 | NITROGEN-LINKED SURFACE FUNCTIONALIZED PIGMENTS FOR INKS - A pigment-based ink is disclosed. The ink includes a non-polar carrier fluid and a nitrogen-linked surface functionalized pigment particle, wherein the nitrogen-linked surface functionalized pigment particle is suspended in the non-polar carrier fluid and includes an azide moiety linked to the surface of a pigment particle. The azide moiety further includes an acidic or a basic functional group bonded to it. An electronic display utilizing the pigment-based ink and a method of formulating the pigment-based ink are also disclosed. | 11-01-2012 |
20120300284 | INKS INCLUDING BLOCK COPOLYMER GRAFTED PIGMENTS VIA AZIDE CHEMISTRY - Pigment based inks are provided. The inks include a non-polar carrier fluid; and a surface-functionalized pigment particle including a nitrogen-inked moiety to the surface of the pigment particle through a nitrogen link at one end of the nitrogen-linked moiety and a block copolymer having at least two blocks attached at another end, the pigment particle suspended in the non-polar carrier fluid. A combination of an electronic display and an electronic ink employing the pigment and a process for making the pigment-based inks are also provided. | 11-29-2012 |
20130071690 | DUAL COLOR ELECTRONICALLY ADDRESSABLE INK - A dual color electronically addressable ink includes a non-polar carrier fluid; a first colorant of a first color; and a second colorant of a second color that is different than the first color. The first colorant includes a first particle core, and a first functional group attached to a surface of the particle core. The first functional group is capable of carrying a positive charge and is chosen from a base or a salt of the base. The second colorant includes a particle core, and a second functional group attached to a surface of the particle core. The second functional group is capable of carrying a negative charge and is chosen from an acid or a salt of the acid. The ink further includes an additive chosen from polyhydroxystearic amide salt, polyhydroxystearic acid, aromatic butyric acid, and combinations thereof. | 03-21-2013 |
20140016179 | PIGMENT-BASED INKS - A compound is disclosed. The compound has a general structure: | 01-16-2014 |
20140022507 | Extended Wear Ophthalmic Lens - A method for making a silicone hydrogel contact lens is provided. In one embodiment, a prepolymer mixture is polymerized in a lens mold in an atmosphere having less than about 10000 ppm oxygen to form a silicone hydrogel contact lens suitable for extended wear as characterized by producing less than 10% corneal swelling after a period of continuous wear of 7 days including normal sleep periods. In one embodiment, the prepolymer mixture comprises at least one oxyperm material containing hydrophilic groups, wherein the at least one oxyperm material is a siloxane-containing macromer or monomer, at least one ionperm material, and a cross-linking agent. In certain embodiments, the polymerization of the prepolymer mixture may be carried out in an atmosphere having less than about 1000 ppm oxygen. | 01-23-2014 |
20140118816 | Surfactants With A Terminal Dialkyl- Or Cycloalkyl-Substituted Tertiary Amine And Inks Including The Same - Surfactants are provided that have a hydrophobic tail portion and a hydrophilic head portion. The hydrophilic head portion includes a terminal dialkyl-substituted tertiary amine or a terminal cycloalkyl-substituted tertiary amine. Also provided are pigment-based inks employing the surfactant, a combination of an electronic display and the pigment-based inks, and a process for reducing conductivity in primary amine-based surfactants and improving reliability of electronic inks employing such surfactants. | 05-01-2014 |
20140376082 | MULTI-STABLE ELECTRONIC INKS - A compound is disclosed. The compound has the general structure: | 12-25-2014 |
20150036207 | INKS INCLUDING GRAFT COPOLYMER SURFACE-MODIFIED PIGMENTS VIA AZIDE CHEMISTRY - Pigment based inks are provided. The inks include a non-polar carrier fluid and a surface-functionalized pigment particle including a nitrogen-linked moiety to the surface of the pigment particle through a nitrogen link at one end of the nitrogen-linked moiety and a graft copolymer having two or three blocks attached at another end, the pigment particle suspended in the non-polar carrier fluid, the nitrogen-linked moiety further including an alkyl chain interposed between the nitrogen-linked moiety and the graft copolymer having the structure (I), where X is the nitrogen-linked moiety and Y is a copolymer, and the letter a is an integer between 0 and about 5,000, while the letter b is an integer of 2 or more. | 02-05-2015 |
20150210873 | INKS INCLUDING SEGMENT COPOLYMER GRAFTED PIGMENTS VIA AZIDE CHEMISTRY - Pigment based inks are provided. The inks include a non-polar carrier fluid; and a surface-functionalized pigment particle including a nitrogen-inked moiety to the surface of the pigment particle through a nitrogen link at one end of the nitrogen-linked moiety and a segment copolymer having at least two blocks attached at another end, the pigment particle suspended in the non-polar carrier fluid. A combination of an electronic display and an electronic ink employing the pigment and a process for making the pigment-based inks are also provided. | 07-30-2015 |