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48 results about "Silyl hydride" patented technology
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Silicon hydrides are organosilicon compounds that contain a silicon–hydrogen bond. Examples include phenylsilane (PhSiH₃) and triethoxysilane ((EtO)₃SiH).
Elastomer, its preparation and use
InactiveUS6056976AEasy to prepareMeet the requirements of mechanical propertiesPowder deliveryPharmaceutical non-active ingredientsElastomerSilicon
The invention relates to a siloxane-based elastomer intended for controlling the permeation of drugs, wherein the elastomer includes 3,3,3,-trifluoropropyl groups attached to the Si-atoms of the siloxane units. The invention relates also to a method for the preparation of a siloxane-based elastomer including 3,3,3,-trifluoropropyl substituents, where the elastomer is intended for controlling the permeation of drugs. In the method either i) a 3,3,3,-trifluoropropyl-substituted vinyl-functional polysiloxane component and a silicon hydride-functional crosslinking agent are crosslinked in the presence of a catalyst, or ii) a 3,3,3,-trifluoropropyl-substituted polysiloxane component is crosslinked in the presence of a peroxide catalyst.
Owner:OY SCHERING +1
Method for making nanoporous silicone resins from alkylydridosiloxane resins
InactiveUS6143360ALow dielectric constantPretreated surfacesSemiconductor/solid-state device manufacturingPolymer chemistryCarbon atom
A method for preparing a nanoporous silicone resin which can be used to form low dielectric constant films useful for electrical insulating coatings on electronic devices comprising (A) contacting a hydridosilicon containing resin with a 1-alkene comprising about 8 to 28 carbon atoms in the presence of a platinum group metal-containing hydrosilation catalyst effecting formation of an alkylhydridosiloxane resin where at least 5 percent of silicon atoms are substituted with at least one group comprising about 8 to 28 carbon atoms and at least 45 percent of silicon atoms are substituted with at least one hydrogen atom and (B) heating the alkylhydridosiloxane resin of step (A) at a temperature sufficient to effect curing and thermolysis of alkyl groups comprising about 8 to 28 carbon atoms from the silicon atoms thereby forming a nanoporous silicone resin.
Owner:DOW CORNING CORP
Method for making microporous silicone resins with narrow pore-size distributions
A method for preparing a microporous silicone resin which can be used to form low dielectric constant films useful for electrical insulating coatings on electronic devices comprising (A) contacting a hydridosilicon containing resin with an alkenyltriarylsilane in the presence of a platinum group metal-containing hydrosilation catalyst effecting formation of a silicon resin where at least 5 percent of silicon atoms are substituted with at least one triarylsilylalkylene group and at least 45 percent of silicon atoms are substituted with at least one hydrogen atom and (B) heating the silicon resin of step (A) in an inert atmosphere at a temperature sufficient to effect thermolysis of the triarylsilylalkylene groups from the silicon atoms.
Owner:DOW CORNING CORP
Method for making nanoporous silicone resins from alkylhydridosiloxane resins
InactiveUS6184260B1Pretreated surfacesSemiconductor/solid-state device manufacturingPolymer chemistryCarbon atom
Owner:DOW CORNING CORP
In-situ activation of metal complexes containing terdentate nitrogen ligands used as hydrosilylation catalysts
Disclosed herein is a process for the hydrosilylation of a composition containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising contacting a non-previous metal based complex as a catalyst precursor with an activator being a reducing agent shortly before, simultaneously or after contacting the complex with the composition, to cause the silyl hydride to react with the compound containing at least one unsaturated group to produce a hydrosilylation product.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC +1
Process for producing epoxyorganosilicon compounds
InactiveUS6365696B1High yieldGreat batch-to-batch consistencyGroup 4/14 element organic compoundsOrganic chemistry methodsPlatinumCarboxylic acid
The present invention describes a method for producing epoxyorganosilicon compounds through the platinum-catalyzed hydrosilation reaction of ethylenically unsaturated epoxides and a silicon-hydride in the presence of a carboxylic acid salt. Also taught herein is the use of carboxylic acid salts in compositions of epoxyorganosilicon compounds to provide compositions of greater stability.
Owner:GENERAL ELECTRIC CO
Shape memory main-chain smectic-c elastomers
InactiveUS20090240075A1Low stiffnessLarge deformationLiquid crystal compositionsOrganic chemistryElastomerLiquid crystalline
Owner:UNIV OF CONNECTICUT
Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer
InactiveUS20100137525A1Low costIncreased hydrogenation conversionOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic reactionsSilyleneHydrogen pressure
The present invention provides a process for hydrogenation of a conjugated diene polymer comprising hydrogenating said polymer in the presence of hydrogen and a hydrogenation catalyst composition, wherein the catalyst composition comprising a titanium compound (A), a silyl hydride (B) selected from the group having a Si—H group and consisting of a monomeric silyl hydride, a polymeric silyl hydride, and a cyclic silyl hydride; and a compound (C), and conducting the hydrogenation in a middle to larger sized reactor having a capacity of 25 liters, with a temperature of 50° C. to 150° C., and a hydrogen pressure of 1 kg / cm2 to 20 kg / cm2.
Owner:CHI MEI CORP
Laminate Containing Solvent Resistant Polyurethane Adhesive Compositions
ActiveUS20100151240A1Lamination ancillary operationsFilm/foil adhesivesPolymer sciencePolyurethane adhesive
A laminate includes a backing material coated with a solvent resistant adhesive composition. The adhesive composition includes a hydroxyl or urea or hydrocarbon terminated unsaturated polyurethane or polyurethane-urea polymer and a peroxide or a silicone hydride.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC
Shape memory main-chain smectic-C elastomers
InactiveUS20050242325A1Low stiffnessLarge deformationLiquid crystal compositionsThin material handlingLiquid crystallineElastomer
Shape memory main-chain smectic-C elastomers are described. The elastomers are prepared by hydrosilylation of a reaction mixture including a liquid crystalline diene, a crosslinking agent, and a bis(silyl hydride) compound. The elastomers exhibit shape-memory properties and spontaneously reversible shape changes. They are useful for fabrication of shape memory articles including, for example, implantable medical devices, contact lenses, reversible embossing media, and Fresnel lenses.
Owner:UNIV OF CONNECTICUT
High-Temperature Ionic State Compound Crystallization Technology
InactiveUS20100320075A1High purityIncrease productionVacuum evaporation coatingSputtering coatingHigh pressureHigh voltage
The present invention provides a high-temperature ionic state fluidized bed compound crystallization technology and an internal reactor structure thereof. The principle of the present invention is that reaction gas is effected by a group of high-frequency external magnetic fields and forms the high-temperature gaseous ion in the first quartz vacuum tube, then forms ion deposition diffusion in the second quartz vacuum tube preheated at constant temperature. As a result, other high-temperature gaseous ions except the silicon hydride are decomposed, rapidly deposited and crystallized in the ion diffusion chamber. And the un-decomposed silicon hydride gas is directly poured into the surface of the silicon heating body of the compound fluidized bed by the static negative high-voltage quartz spray hole to decompose and crystallize, or crystallize by a way of fluid state in the arched heating quartz tube communicating with the top of two quartz reaction furnaces.
Owner:WANG HAIBIAO +2
Dehydrogenative silylation, hydrosilylation and crosslinking using pyridinediimine cobalt carboxylate catalysts
ActiveUS20180201634A1Efficiently catalyzing dehydrogenative silylation and/or hydrosilylationGroup 4/14 element organic compoundsOrganic-compounds/hydrides/coordination-complexes catalystsSilyleneDiimine
A process for producing a silylated product comprises reacting a mixture comprising (a) an unsaturated compound containing at least one unsaturated functional group, (b) a silyl hydride containing at least one silylhydride functional group, and (c) a catalyst, optionally in the presence of a solvent, to produce a dehydrogenative silylated product, a hydrosilylated product, or a combination of a dehydrogenative silylated product and a hydrosilylated product, wherein the catalyst is chosen from a pyridine diimine cobalt dicarboxylate complex or a cobalt carboxylate compound, and the process is conducted without pre-activating the catalyst via a reducing agent and / or without an initiator or promoter compound. The present catalysts have been found to be active in the presence of the silyl hydride employed in the silylation reaction.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC +1
Catalyst composition for hydrogenation and their use for hydrogenation conjugated diene polymer
InactiveUS20080171653A1Low costIncreased hydrogenation conversionOrganic-compounds/hydrides/coordination-complexes catalystsCatalytic reactionsSilyleneTitanium
The present invention provides a catalyst composition for hydrogenation comprising: (1) a titanium compound (A) represented by the following formula (a):(2) a silyl hydride (B); and (3) a compound (C) represented by the following formula (e):The catalyst composition for hydrogenation can maintain activity longer and improve hydrogenation conversion of the conjugated diene polymers, particularly of the trans structure. The conjugated diene polymers produced according to the present invention can further perform good thermal stability and odorless.
Owner:CHI MEI CORP
Personal care compositions containing crosslinked silicone polymer networks and their method of preparation
The invention is directed to a personal care composition which contains an ionically-modified cross-linked silicone network which is formed by the polymerization of a silicone polymer containing hydrosilylation effective unsaturated moiety, silyl hydride moiety and ionic radicals.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC
In-situ activation of metal complexes containing terdentate nitrogen ligands used as hydrosilylation catalysts
Disclosed herein is a process for the hydrosilylation of a composition containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising contacting a non-previous metal based complex as a catalyst precursor with an activator being a reducing agent shortly before, simultaneously or after contacting the complex with the composition, to cause the silyl hydride to react with the compound containing at least one unsaturated group to produce a hydrosilylation product.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC +1
Platinum catalyzed hydrosilylation reactions utilizing cyclodiene additives
A process for the hydrosilylation of an unsaturated compound comprising reacting (a) a silyl hydride with (b) an unsaturated compound in the presence of (c) a platinum compound and (d) a cyclodiene, with the provisos that (i) when the unsaturated compound is a terminal alkyne, the silyl hydride is other than a halosilane, and (ii) when the platinum compound is a Pt(II)-based compound, the ratio of total moles of cyclodiene to moles of platinum is less than 3:1.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC
BRIDGED FRUSTRATED LEWIS PAIRS AS THERMAL TRIGGER FOR REACTIONS BETWEEN Si-H AND Si-OR
PendingUS20220169794A1Effectively penetrate into compositionHigh surface area exposureSilyleneSilanes
Owner:DOW SILICONES CORP
Curable silicone composition and applications and uses thereof
A curable composition comprising (a) an organopolysiloxane comprising a curable functional group; (b) a cross-linker comprising a silyl hydride group or a thiol group; (c) a reaction accelerator; (d)optionally an inhibitor; and (e) optionally other additives. The curable composition exhibits high refractive index and optical clarity. The curable composition can be used to prepare a cured materialthat exhibits high refractive index, optical clarity, crack resistance, and low moisture vapor permeability.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC
Platinum (II) diene complexes for controlled siloxane crosslinking
ActiveCN106715536AGroup 4/14 element organic compoundsOrganic-compounds/hydrides/coordination-complexes catalystsCross-linkPlatinum
A process for cross-linking siloxane and organic polymers comprising reacting (a) a silyl hydride with (b) an unsaturated polymeric compound in the presence of (d) a platinum diene compound with a chelating dianionic ligand.
Owner:MOMENTIVE PERFORMANCE MATERIALS INC
BRIDGED FRUSTRATED LEWIS PAIRS AS THERMAL TRIGGER FOR REACTIONS BETWEEN Si-H AND ALPHA-BETA UNSATURATED ESTERS
PendingUS20220169795A1Easy to handleFast curingGroup 4/14 element organic compoundsOrganic-compounds/hydrides/coordination-complexes catalystsSilyleneOrganic chemistry
A composition contains an alpha-beta unsaturated ester, a silyl hydride, and a Bridged Frustrated Lewis Pair.
Owner:DOW SILICONES CORP
Hydrogenated aromatic alkenyl and diene copolymers containing comonomers that have silyl hydride units and functionalized analogues thereof
The present invention relates principally to polymers that comprise at least one aromatic alkenyl monomer, at least one conjugated diene monomer, and at least one monomer that contains silyl hydride groups, which are characterized in that said polymers are hydrogenated and preferably functionalized by means of hydrosilylation reactions between the silyl hydride groups in the polymer chain and the multiple bonds of any alkene or alkyne compound. In addition to the products described, this invention comprises the methods for the synthesis thereof and the uses thereof, especially as hot-melt adhesives, in plastics impact modification, and in chain-extension reactions with a view to obtaining new materials, inter alia.
Owner:DYNASOL ELASTOMEROS +1
Hydrogenated alkenyl aromatic-diene copolymers containing comonomers having silyl hydride units and their functionalized analogs
Owner:DYNASOL ELASTOMEROS +1
Hydrogenization catalyst composition and application thereof for hydrogenization conjugated diene polyalcohol
InactiveCN101249457AImprove thermal stabilityGood activity persistenceOrganic-compounds/hydrides/coordination-complexes catalystsTitaniumThermal stability
The invention provides a hydrogenating catalyst composition, which comprises: (1) a titanium compound (A) of the formula (a) as follow, (2) a silyl hydride compound (B), (3) and a compound (C) of the formula (e) as follow. The hydrogenating catalyst composition has good activity durability, and improves the hydrogenation of the polymer. In particular, when the hydrogenating catalyst composition is used for the hydrogenation of conjugated diene polymer, trans-structure of the conjugated diene polymer has high hydrogenation, and an odourless hydrogenated conjugated diene polymer with good thermostability can be acquired.
Owner:CHI MEI CORP
Hydrogenation catalyst composition and application thereof in hydrogenated conjugated diene polymer
InactiveCN101698154AImprove thermal stabilityGood activity persistenceOrganic-compounds/hydrides/coordination-complexes catalystsTitaniumThermal stability
The invention provides a hydrogenation catalyst composition, which comprises: (1), a titanium compound (A) shown in the following formula (a), (2) a silyl hydride compound (B) and (3) a compound (C) shown in the following formula (e). The hydrogenation catalyst composition has good activity durability and can improve the hydrogenation degree of the polymer. In particular, when the hydrogenated catalyst composition is used for hydrogenating the conjugated diene polymer, the hydrogenation degree of the transstructure in the conjugated diene polymer is high, and a hydrogenated conjugated diene polymer with good thermal stability and without odor can be obtained.
Owner:CHI MEI CORP
BRIDGED FRUSTRATED LEWIS PAIRS AS THERMAL TRIGGER FOR REACTIONS BETWEEN Si-H AND EPOXIDE
Owner:DOW SILICONES CORP
Dehalogenation methodof 9-halogenated steroid compound and application
PendingCN112142813AThe synthesis process is simpleImprove production suitabilitySteroidsChemical synthesisHydrazine compound
The invention provides a dehalogenation method of a 9-halogenated steroid compound and application, and relates to the technical field of chemical synthesis. The dehalogenation method of the 9-halogenated steroid compound comprises the following steps: reacting a compound I with a hydrogen donor and an azo radical initiator to obtain a 9-dehalogenated product compound II of the 9-halogenated steroid compound. According to the dehalogenation method of the 9-halogenated steroid compound, a hydrogen donor adopts one or a combination of more of hypophosphorous acid and hypophosphite, formic acid and formate, organic silicon hydride, hydrazine compounds or cyclohexene, and an initiator adopts an azo free radical initiator. Reagents such as chromium, divalent chromium salt, trivalent chromium salt or tributyltin hydride which are high in toxicity and cause serious pollution to the environment are not used in the reaction, the method is green and environmentally friendly, the synthesis process is simple, convenient and easy to implement, and the production applicability is improved.
Owner:TIANJIN PHARMA GROUP CORP
Formulations for 3D printing of hydrosilylation-modified polysilazanes
Some variations provide a preceramic resin precursor formulation comprising: first molecules comprising at least one Si—C bond and / or at least one Si—N bond, wherein the first molecules include at least one silyl hydride group (Si—H) available for hydrosilylation; and second molecules with at least one unsaturated carbon-carbon bond attached to a UV-active functional group. The first molecules and second molecules may be reacted, via hydrosilylation with a homogeneous or heterogeneous metal-containing catalyst, to produce third molecules comprising a hydrosilylation-modified polysilazane that contains the UV-active functional group. Many possible starting formulations are described, and methods are disclosed for carrying out the chemical reactions to generate the hydrosilylation-modified polysilazanes. The hydrosilylation-modified polysilazanes may then be 3D-printed and thermally treating to fabricate a ceramic material.
Owner:HRL LAB
Method and system for silosilazanes, silosiloxanes, and siloxanes as additives for silicon dominant anodes
Systems and methods for silosilazanes, silosiloxanes, and siloxanes as additives for silicon-dominant anodes in a battery that may include a cathode, an electrolyte, and an anode active material. The active material may comprise 50% or more silicon as well as an additive including one or more of: silosilazane, silicon oxycarbides, and polyorganosiloxane. The silosilazane may comprise one or more amine groups, silanols, silyl ethers, sylil chlorides, dialkylamoinosilanes, silyl hydrides, and cyclic azasilanes. The active material may comprise a film with a thickness between 10 and 80 microns. The film may have a conductivity of 1 S / cm or more. The active material may comprise between 50% and 95% silicon. The active material may be held together by a pyrolyzed carbon film. The anode may comprise lithium, sodium, potassium, silicon, and / or mixtures and combinations thereof. The battery may comprise a lithium ion battery. The electrolyte may comprise a liquid, solid, or gel.
Owner:ENEVATE CORP
Hydrogenated alkenyl aromatic-diene copolymers containing comonomers having silyl hydride units and their functionalized analogs
ActiveUS20150175854A1Improve thermo-oxidative stabilityImprove thermal stabilityCoatingsAdhesivesSilyleneAdhesive
The present invention relates primarily to polymers comprising at least one alkenyl aromatic monomer, at least one conjugated diene monomer, and at least one monomer containing silyl hydride moieties, characterized in that said polymers are hydrogenated and preferably functionalized by hydrosilylation reactions between the silyl hydride groups on the polymer chain and the multiple bonds of any alkene or alkyne compound. Besides the described products, this invention comprises their synthesis processes and their uses, especially as thermofusible adhesives, in plastics impact modification, and in chain-extension reactions to obtain new materials, among others.
Owner:DYNASOL ELASTOMEROS +1
Method And System for Silosilazanes, Silosiloxanes, And Siloxanes As Additives For Silicon Dominant Anodes
Systems and methods for silosilazanes, silosiloxanes, and siloxanes as additives for silicon-dominant anodes in a battery that may include a cathode, an electrolyte, and an anode active material. The active material may comprise 50% or more silicon as well as an additive including one or more of: silosilazane, silicon oxycarbides, and polyorganosiloxane. The silosilazane may comprise one or more amine groups, silanols, silyl ethers, sylil chlorides, dialkylamoinosilanes, silyl hydrides, and cyclic azasilanes. The active material may comprise a film with a thickness between 10 and 80 microns. The film may have a conductivity of 1 S / cm or more. The active material may comprise between 50% and 95% silicon. The active material may be held together by a pyrolyzed carbon film. The anode may comprise lithium, sodium, potassium, silicon, and / or mixtures and combinations thereof. The battery may comprise a lithium ion battery. The electrolyte may comprise a liquid, solid, or gel.
Owner:ENEVATE CORP
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