Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.

Abstract: Compounds that include silicon-containing groups, and optionally urethane groups, urea groups, or combinations thereof (i.e., polyurethanes, polyureas, or polyurethane-ureas), as well as materials and methods for making such compounds.

Abstract: The present invention provides flame retardants which can provide high flame retardancy by means of silicon compounds. A flame retardant comprising an aromatic group-containing organosiloxane compound wherein said compound has the following mean composition formula (1), does not flow at 23° C., flows at 200° C., does not gelate when heated at 200° C. with stirring for 30 minutes, has a number average molecular weight of not less than 2,000 and at the same time, dissolves not less than 100 g in 1 L of a solvent toluene at 23° C.: R1mR2nSiO(4-m-n)/2??(1) in the formula, R1 represents a univalent aliphatic hydrocarbon group containing 1 to 4 carbon atoms; R2 represents a univalent aromatic hydrocarbon group containing 6 to 24 carbon atoms; R1 and R2 each may contain two or more species; and m and n are numbers satisfying 1.1?m+n?1.7 and 0.4?n/m?2.5.

Abstract: A curable composition comprising: (A) a branched polyfluorodialkenyl compound represented by a general formula (1): CH2?CH—(X)a-Rf1-(X?)a—CH?CH2??(1) wherein, X and X? are bivalent groups such as —CH2— and —CH2O—, a represents, independently, either 0 or 1, and Rf1 is a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2): Rf2-(X?)a—CH?CH2??(2) wherein, X? and a are as defined above, and Rf2 is a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.

Abstract: The present invention provides an organosiloxane comprising at least 80 weight percent of Formula 1: [Y0.01-1.0SiO1.5-2]a{Z0.01-1.0SiO1.5-2]b[H0.01-1.0SiO1.5-2]c (where Y is aryl; Z is alkenyl; a is from 15 percent to 70 percent of Formula 1; b is from 2 percent to 50 percent of Formula 1; and c is from 20 percent to 80 percent of Formula 1. The present organosiloxane may be used as ceramic binder, high temperature encapsulant, and fiber matrix binder. The present composition is also useful as an adhesion promoter in that it exhibits good adhesive properties when coupled with other materials in non-microelectronic or microelectronic applications. Preferably, the present compositions are used in microelectronic applications as etch stops, hardmasks, and dielectrics.

Abstract: A process for producing polysiloxane prepolymers of improved homogeneity for use in the production of relatively high refractive index polymeric compositions is described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.

Abstract: Anti-reflective coating materials for deep ultraviolet photolithography include one or more organic light-absorbing compounds incorporated into spin-on-glass materials. Suitable absorbing compounds are strongly absorbing over wavelength ranges around wavelengths such as 365 nm, 248 nm, and 193 nm that may be used in photolithography. A method of making absorbing spin-on-glass materials includes combining one or more organic absorbing compounds with alkoxysilane or halosilane reactants during synthesis of the spin-on-glass materials.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: Silicone resins comprising 5 to 50 mole % of (PhSiO3-x)/2(OH)x) units and 50 to 95 mole % (HSiO(3-x)/2(OH)x), where Ph is a phenyl group, x has a value of 0, 1 or 2 and wherein the cured silicone resin has a critical surface free energy of 30 dynes/cm or higher. These resins are useful as etch stop layers for organic dielectric materials having a critical surface free energy of 40 dynes/cm or higher.

Abstract: The present invention relates to polymers of poly(ethynylene phenylene ethynylene silylene) type comprising an inert spacer in the main chain of the polymer. The invention also relates to processes for preparing said polymers and to the cured products that may be obtained by heat-treating said polymers. The polymers according to the invention may be used especially in matrices for composites.

Abstract: An absorbing ether-like compound including a siliconethoxy, silicondiethoxy, or silicontriethoxy species attached to a naphthalene or anthracene chromophore via an oxygen linkage is used as an organic light-absorbing compound. The absorbing ether-like compound is incorporated into spin-on glass materials to provide anti-reflective coating materials for deep ultraviolet photolithography. A method of synthesizing the light-absorbing ether compounds is based on the reaction of an alcohol-substituted chromophore with an acetoxysilicon compound in the presence of alcohol. A method of making absorbing spin-on-glass materials including the absorbing ether-like compounds is also provided.

Abstract: A heat-resistant polyether having a heat resistance to a temperature of 300° C. or higher, sufficient solubility in organic solvents, low water absorption and high adhesion to substrates is provided by a heat-resistant polyether including a repeating unit represented by the formula (1) and having a polystyrene-converted weight-average molecular weight determined by GPC of not less than 1000 and not more than 50000: wherein Ar represents a bivalent organic group having an aromatic ring; R1 to R8 each independently represent a hydrogen atom or an aryl group which may be substituted; and when at least one of R1 to R8 is an aryl group which may be substituted, X represents a direct bond or a hydrocarbon group having 1 to 20 carbon atoms, while when all of R1 to R8 are hydrogen atoms, X is represented by the formula (2): —CR9(R10)—??(2) wherein R9 and R10 each independently represent an aryl group which may be substituted.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more siloxysilane monomers or the copolymerization of one or more siloxysilane monomers with one or more aromatic or non-aromatic non-siloxy monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.

Abstract: A film-forming composition contains surface-treated nanocrystalline particles dispersed in a cross-linkable resin. A substantially transparent, abrasion-resistant film is formed from the film-forming composition. Processes for preparing the film-forming composition and for preparing a substantially transparent, abrasion-resistant film are also included. The surface-treated nanocrystalline particles may be obtained by treating nanocrystalline particles with one or more siloxane species, such as a siloxane star-graft polymer coating.

Abstract: Fluorochemical urethane compositions comprising one or more fluorochemical urethane compounds, and one or more auxiliary compounds for treatment of a fibrous substrate are described. The fluorochemical compositions are capable of improving one or more of the oil- and/or water repellency, stain- and/or soil repellency and stain and/or soil release properties, with improved durability, of the fibrous substrate treated with the fluorochemical composition.

Abstract: An organic field effect transistor (FET) is described with an active dielectric layer comprising a low-temperature cured dielectric film of a liquid-deposited silsesquioxane precursor. The dielectric film comprises a silsesquioxane having a dielectric constant of greater than 2. The silsesquioxane dielectric film is advantageously prepared by curing oligomers having alkyl(methyl) and/or alkyl(methyl) pendant groups. The invention also embraces a process for making an organic FET comprising providing a substrate suitable for an organic FET; applying a liquid-phase solution of silsesquioxane precursors over the surface of the substrate; and curing the solution to form a silsesquioxane active dielectric layer. The organic FET thus produced has a high-dielectric, silsesquioxane film with a dielectric constant of greater than about 2, and advantageously, the substrate comprises an indium-tin oxide coated plastic substrate.

Abstract: Disclosed are compounds according to formula (I), wherein R? and R? are selected from the group consisting of R?=SiR1R2R3 and R?=H; R?=SiR1R2R3 and R?=SiR4R5R6; and R?=Ar1SiR1R2R3 and R?=Ar2SiR4R5R6; R1, R2, R3, R4, R5, and R6 are independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, aryl, cycloalkyl, cycloalkenyl, cycloalkynyl, arylalkyl, arylalkenyl, and arylalkynyl; Ar1 and Ar2 are independently selected from the group consisting of arylene, arylenealkylene, arylenealkynylene, heteroarylene, heteroarylenealkylene, heteroarylenealkenylene and heteroarylenealkylene; and n is at least 20. Such compounds may be used as an emissive layer in a polymer light-emitting diode (PLED), which itself may be used in electroluminescent devices.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, corneal inlays and contact lenses made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based siloxane macromonomers or the copolymerization of one or more aromatic-based siloxane macromonomers with one or more non-siloxy aromatic-based monomers, non-aromatic-based hydrophobic monomers or non-aromatic-based hydrophilic monomers.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: The present invention provides lenses for eyes having visible light transmission properties near to those of human crystalline lenses, particularly coloring techniques effective for soft lenses for eyes. The present invention is a yellow dye capable of chemical bonding to a silicone which is a material of the intraocular lens or capable of copolymerizing with a radical polymerizable monomer which is a material of the intraocular lens.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: An article with a predetermined surface pattern that is coated with a film which makes possible the complete transfer of the pattern of a patterning die and thick-film patterning having a depth to the order of several tens of micrometers, prevents the occurrence of cracks, has high film hardness, and has a surface pattern which is the inverse of the surface pattern of the patterning die. This article is produced by joining a patterning die closely to a substrate with a sol-gel material containing the silane compound represented by the formula: R1SiX3 (wherein R1 is an alkyl group or hydrogen and X is an alkoxyl group or a halogen atom) and the silane compound represented by the formula: R2SiY3 (wherein R2 is an aryl group or a substituted aryl group and Y is an alkoxyl group or a halogen atom) disposed therebetween in the form of a film and heating them to coat the surface of the substrate with a gel film having a surface pattern which is the inverse of the surface pattern of the patterning die.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: An organic EL device employing polymer material includes a structure in which a luminous layer formed of a polymer indicated by is put between a lower electrode and an upper electrode. Where, in the above chemical formula, Ar1, Ar2 denote a allylene group respectively, R1, R2, R3, R4 denote a substituent respectively, and n denotes a copolymerization ratio. Accordingly, the flatness of the luminous layer can be improved and the solubility of the luminous layer constituent material can be enhanced.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: A hole transporting polymer having a specific Si-containing repeating unit represented by a formula (1) and specific molecular weight, an excellent hole transporting property, and superior durability and film-forming properties, and the organic EL device, using the bole transporting polymer having excellent light emitting characteristics are disclosed.

Abstract: A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.

Abstract: A marking composition includes a polymerizable first material that comprises silicon and a second material capable of extending polymeric chains of the first material, wherein the marking composition is capable of undergoing a change that can be detected optically when the composition is contacted with energy.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: A polysiloxane having a refractive index of about 1.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: An addition curing type silicone resin composition is provided including (A) 100 parts by weight of a specific organopolysiloxane with a phenyl group and at least two alkenyl groups within each molecule, (B) 1 to 100 parts by weight of a specific organohydrogenpolysiloxane with a phenyl group and at least two SiH groups within each molecule, and (C) an effective quantity of a hydrosilylation reaction catalyst. A cured product obtained by curing this composition is transparent, displays good strength and particularly good flexural strength, and moreover also displays a high degree of hardness. The composition is applicable to a variety of fields including electrical and electronic equipment, OA equipment and precision instruments.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: A process for producing polysiloxane prepolymers of improved homogeneity for use in the production of relatively high refractive index polymeric compositions is described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays. The preferred polymeric compositions are produced through the copolymerization of one or more polysiloxane prepolymers with hydrosilane-containing polysiloxanes.

Abstract: A process for producing a low cross-linking-density gel capable of effectively inhibiting light scattering in joining the ends of optical fiber cores with each other. The process is characterized by involving the compounding step for adjusting a flexible silicone gal material to have a specified refractive index and the reaction step for cross-linking the flexible silicone gel material obtained in the above step in a binding region with a low cross-linking density, thus yielding a low cross-linking-density gel.

Abstract: The invention relates to self-adhesive thermally crosslinkable 1-component silicone compositions which contain the components defined in claim 1 (A) diorganopolysiloxane, (B) filler which is selected from filler (B1) having a specific surface area of at least 50 m2/g, aluminum hydroxide (B2) and mixtures thereof, (C) organohydrogenpolysiloxanes, (D) organosilcon compound having a vinyl radical, epoxy group, acroyloyloxy or methacryloyloxy group and hydrolyzable groups and (E) hydrosilylation catalyst or peroxide crosslinking agent, the Mooney viscosity of the silicone compositions, determined at 25° C. according to DIN 53523 Part 3, being 20 to 200.

Abstract: The invention comprises a networked polymer comprising the formula: wherein n≧1; wherein n is an average value obtained by averaging all repeating units of the networked polymer; wherein m≧1; wherein Y is a divalent group containing one or more acetylenic groups, one or more crosslinks, or both; wherein z is the average number of crosslinks per Y group; wherein Ar1 and Ar2 are independently selected aromatic groups; and wherein each R is independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl, and combinations thereof. The invention also includes prepolymers and precursors needed to make the networked polymer and processes for making all of the above. The invention also includes a ceramic composition made by pyrolysis of the networked polymer.

Abstract: A prepolymer, represented by the formula: wherein n is an average value grater than or equal to 0, Ar is an aromatic group, and each R10 is independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof and each R11 is independently selected from the group consisting of alkyl, aryl, alkylaryl, haloalkyl, haloaryl and mixtures thereof.

Abstract: An anti-fog coating composition comprises a silicone polymer or oligomer, a water dispersible polyurethane polymer or oligomer, and water. A process for forming an anti-fog film comprises applying the anti-fog coating composition to a substrate and coalescing the silicone and polyurethane compounds to form the film. In another embodiment, the process for forming the anti-fog film comprises applying the components of the anti-fog coating composition to a substrate and crosslinking the components to form the anti-fog film. The components generally include a polyol, an isocyanate, a catalyst, and a silicone polymer or oligomer.

Abstract: A curable silicone resin composition comprises (A) an uncured silicone resin having units of the formula (R*)a(R)bSiO(4−a−b)/2, where each R* is a functional group capable of reacting with Si—OH and/or Si-alkoxy groups and each R is a nonfunctional monovalent hydrocarbon group, a+b is from 1.0 to 3.0 and each molecule of uncured silicone resin contains an average of at least two groups R*, and (B) a silanol or hydrolysable compound of the formula (I) where R′ represents a hydroxyl group or a hydrolysable group; each R″ represents hydrogen, a monovalent hydrocarbon which optionally is substituted, or a group within the above definition of R′; and Ar is a substantially nonflexible linkage including at least one para-arylene moiety, so that the groups (R′)2R″Si— are spatially separated.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: Relatively high refractive index polymeric compositions and ophthalmic devices such as for example intraocular lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the copolymerization of one or more aromatic-substituted polysiloxane prepolymers with one or more aromatic monomers, alkylated monomers or hydrophilic monomers.

Abstract: An adhesion promoter for a primer, comprising a silane compound that is a reaction product between a polyisocyanate and a silane coupling agent having a secondary amino group, the nitrogen atom of which is directly connected to a phenyl group or a derivative thereof, the silane compound having in average one or more NCO group and in average one or more hydrolyzable alkoxysilyl group in the molecule. Also, a primer composition comprising the adhesion promoter for a primer and a film forming resin is disclosed. The adhesion promoter has high adhesion to various adherends and retains that effect after prolonged storage and the primer composition is excellent in adhesion to various adherends and retains adhesion after prolonged storage.

Abstract: Optically transparent, relatively high refractive index polymeric compositions and ophthalmic devices such as intraocular lenses, contact lenses and corneal inlays made therefrom are described herein. The preferred polymeric compositions are produced through the polymerization of one or more aromatic-based silyl monomers or the copolymerization of one or more aromatic-based silyl monomers with one or more aromatic or non-aromatic non-siloxy-based monomers, hydrophobic monomers or hydrophilic monomers.

Abstract: An optical device assembled by means of an adhesive composition which is free from the cracking of an adhesive layer thereof, is prepared easily and has excellent adhesive strength. The optical device is produced by placing an adhesive composition prepared by hydrolyzing, dehydrating and condensing a starting solution which contains 10 to 50 mol % of a silane compound represented by SiX14 (X1 is a hydrolyzable group) or a combination of the silane compound and a metal alkoxide, 25 to 65 mol % of a silane compound represented by PhSiX23 (Ph is a phenyl group or substituted phenyl group, and X2 is a hydrolyzable group), and 25 to 65 mol % of a silane compound represented by (CH3)2SiX32 (X3 is a hydrolyzable group) between an optical part and another part and heating it to bond the optical part to the another part.

Abstract: The invention relates to a heat-activated initiator for polymerising and/or cross-linking polyorganosiloxane-type monomers, oligomers and/or polymers with organofunctional groups, comprising a boron derivative of formula (I): (A)xB(R′)y, wherein the symbols R′ are the same or different and represent an alkyl or alkenyl radical in C1-C12, an alkoxy radical in C1-C12, a phenyl radical substituted by at least one electroattractor element, an aryl radical containing at least two aromatic rings such as biphenyl, naphthyl, optionally substituted by at least one electroattractor element, especially a halogen atom (particularly fluorine), or an electroattractor group, especially a CF3, NO2, CN group; and a radical —C2H4—Si(Q)3 with the symbols Q being the same or different and representing an alkyl or alkoxy group in C1 to C10 or a siloxane oligomer with less than 10 silicon atoms. The invention also relates to a corresponding cross-linkable composition and to the uses thereof.

Abstract: The object of the present invention is to provide resin composition for intermediate layer of a three-layer resist comprising (A) a polyorganosilsesquioxane resin having a weight-average molecular weight of from 1000 to 50000 and having two or more functional groups, which polymerize or condense at the presence of a acid, in the molecule, and (B) a compound generating an acid by electromagnetic wave or heat, and resin composition for intermediate layer of a three-layer resist, comprising (C) a polyorganosilsesquioxane resin having in the molecule a hydroxyl group and having a weight-average molecular weight of from 1000 to 50000, as resin composition for intermediate layer of a three-layer resist which, when ketone compounds, aromatic compounds and the like are used as a resist solvent, does not cause dissolution of an intermediate layer in applying an upper layer resist and does not cause formation of a mixing layer at the interface with the upper layer resist, and which shows little change by time, excellen