32 results about "Silyl hydride" patented technology

A method of making a curable thermally conductive composition, comprising the steps of: I) preparing an admixture comprising the following components (A1) an alkenyl-functional polyorganosiloxane of formula (I), (A2) a silyl-hydride functional polyorganosiloxane having an average of at least two silicon atom-bonded hydrogen atoms per molecule and free of a silicon atom-bonded alkyloxy group, (A3) a platinum-based hydrosilylation reaction catalyst, (B) from 92 to 97 weight percent of a thermally conductive filler, based on the weight of the curable thermally conductive composition; and (C) a monotrialkoxysiloxy-terminated polydiorganosiloxane of formula (III), where the silyl-hydride functional polyorganosiloxane is present in an amount to provide a molar ratio of silicon atom-bonded hydrogen atoms in the silyl-hydride functional polyorganosiloxane (A2) to alkenyl groups in the alkenyl-functional polyorganosiloxane (A1) in a range of from 0.2 to 0.65; where the monotrialkoxysiloxy-terminated polydiorganosiloxane is present in an amount of from 20 to 80 weight percent, based on the combined weights of components (A1), (A2), (A3), and (C); II) curing the admixture obtained from step I) by heat, thereby forming a pre-cured composite; and III) admixing the pre-cured composite obtained from step II) with (D) a condensation reaction catalyst and (E) a specific alkoxysilane compound of formula (V); thereby obtaining the curable thermally conductive composition.

A composition and method can be used in the preparation of various siloxanes. The composition and method employ a fluorinated triarylborane Lewis acid, a hydrocarbonoxy-functional organosilicon compound, and a silyl hydride. The fluorinated triarylborane Lewis acid catalyzes reaction of a hydrocarbonoxy moiety (from the organosilicon compound) and a silicon-bonded hydrogen atom (from the silyl hydride) to form a siloxane bond.

Provided is a thermally conductive silicone adhesive composition comprising: (A) at lease one alkenyl group-containing organopolysiloxane, (B) at least one chain-extender comprising terminal silicon-hydride, (C) at least one cross-linker comprising pendant silicon-hydride, (D) at least one catalyst, (E) at least one thermal conductive filler selected from aluminum oxide, aluminum nitride or a combination thereof, and (F) at least one core-shell solid polymer particle; wherein the mole ratio of component (B) to component (C) is from more than 1: 1 to less than 10: 1. The said composition highlights its excellent gap stability when cured, while preserving commendable thermal conductivity and good flowability.

A curable silicone adhesive composition comprising a combination of adhesion promoters is shown and described herein. The composition includes a first adhesion promoter selected from a silicon hydride adhesion promoter and a second adhesion promoter selected from an acrylate functional adhesion promoter to provide a silicone material that is curable at relatively low temperatures and shorter time and provides good adhesion to plastics and metal.

Embodiments of the present disclosure relate to a method of making a silanol-functional polyolefin, the method comprising combining starting materials comprising A) a silyl hydride-functionalized polyolefin, optionally B) a solvent, C) a peroxy acid, optionally D) a neutralizing agent, under thermal conditions for effecting synthesis of a silanol moiety, thereby forming a reaction mixture, the reaction mixture produces the silanol functional polyolefin having the silanol moiety under the thermal conditions.

The present invention provides a liquid polysiloxane comprising a siloxane-thiourea segment and a crosslinkable functional group(s) selected from one or more ethylenically unsaturated groups, silyl hydride groups, alkylenethiol groups and combinations thereof.

The composition comprises a silyl hydride, a silanol and / or a silyl ether, a Lewis acid catalyst, and a compound of the following formula: R 1 R 2 R 3 N [wherein the nitrogen is not a member of an N=CN bond, R 1 , R 2 , and R 3 wherein each of R is independently selected from the group consisting of hydrogen, alkyl, substituted alkyl, and conjugated moieties; 1 , R 2 , and R 3 At least one of is a conjugated moiety connected to the nitrogen by a conjugated carbon.

A process for preparing a silanol-functional organosilicon compound from a silyl hydride and an oxidizing agent is provided. The oxidizing agent comprises peracetic acid.

A composition contains: (a) a vinyl-functional polysiloxane; (b) a silyl hydride functional polysiloxane having on average at least two silyl hydride groups per molecule; (c) 60 to 92 weight-percent thermally conductive filler; (d) a platinum hydrosilylation catalyst; and (e) 0.05 to 2.0 weight-percent of a trialkoxy-functional polysiloxane; where the trialkoxy-functional polysiloxane has two or more trialkoxy functionalities per molecule and a number average molecular weight of 1200 or more and where weight-percents are relative to the composition weight.

A composition includes a silyl hydride (having at least one silicon-bonded hydrogen atom per molecule) and a fluorinated triarylborane Lewis acid. In the method, the Lewis acid catalyzes reaction of silicon bonded hydrogen atoms from the silyl hydride and water, thereby forming a siloxane bond in the resulting product. The composition and method can be used to form siloxane intermediates and cured networks.

Disclosed is a method comprising combining the following components to form a platinum (II) dithiocarbamate complex in a solvent: (i) a platinum (0) complex; (ii) tetrahydrocarbyl thiuram disulfide; and (iii) a solvent. The method may also include separating the platinum (II) dithiocarbamate complex from a solvent to separate the platinum (II) dithiocarbamate complex. The method can also include preparing a curable silicone composition by combining the platinum (II) dithiocarbamate complex with a vinyl functional silicone and a silyl hydride functional silicone to form a curable composition.

A curable silicone composition contains, by weight based on the weight of the curable silicone composition, (A) 0.5% to 50% of an alkenyl-functional polyorganosiloxane having an average of at least two alkenyl groups per molecule; (B) a silyl hydride functional polyorganosiloxane having an average of at least two silicon-bonded hydrogen atoms per molecule; where the silyl hydride functional polyorganosiloxane is present in an amount sufficient to provide a molar ratio of silicon-bonded hydrogen atoms to alkenyl groups for the composition of 0.5 to 10; (C) a platinum catalyst; (D) 66% to 95% of an electrically conductive filler; and (E) 0.08% to 2% of a polyether having at least one epoxy end group and containing an ethylene oxide unit, a propylene oxide unit, or combinations thereof.

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by a coating (3) consisting of the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer obtained from at least one sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted by a thiol group, (3b) optionally one or more discontinuous intermediate layer(s) which may be decorations,and (3c) a topcoat at least partially in contact with layer (3a) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl (-CH=CH2) functions and at least one other organopolysiloxane bearing reactive silyl hydride (-Si-H) or reactive thiol (-SH) functions, wherein, when the silicone elastomer of layer (3c) is obtained from at least one organopolysiloxane bearing reactive thiol (-SH) functions, the metal alkoxide precursor of layer (3a) has an aliphatic chain comprising at least one unsaturation and which may further be substituted by a thiol (-SH) group. Figure for abbreviation: Figure 1,

The present invention relates to a coated cooking element (1) for a cooking article or electric cooking appliance, comprising a metallic substrate (2) coated on at least one face (2a) by at least the following layers and in this order from the metallic substrate (2): (3a) a sol-gel base layer; (3b) optionally one or more intermediate layer(s) which may be decorations;(3c) a sol-gel layer obtained from a sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted with a thiol group, and (3d) a topcoat in contact with layer (3c) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing reactive vinyl functions (-CH=CH2) and at least one other organopolysiloxane bearing reactive silyl hydride functions (-Si-H) or reactive thiol functions (-SH), wherein, where the silicone elastomer of layer (3d) is obtained from at least one organopolysiloxane bearing reactive thiol functions (-SH), the metal alkoxide precursor of layer (3c) has an aliphatic chain comprising at least one unsaturation and which may further be substituted with a thiol group thiol (-SH). Figure for abbreviation: Figure 1;

A method for manufacturing an organosilicon compound is provided. The process includes isomerization and hydrosilylation starting from an internal olefin compound and a silyl hydride compound. A catalyst composition comprising a platinum hydrosilylation reaction catalyst and an iridium (I)-ligand complex is capable of catalyzing isomerization and hydrosilylation reactions.

Polymer derived ceramic (PDC) materials, compositions and methods of making high capacity, long cycle, long life battery anodes to improve the performance of batteries of all types, including but not limited to coin cell batteries, electric vehicle (EV) batteries, hybrid electric vehicle (HEV) batteries, plug-in hybrid electric vehicle (PHEV) batteries, battery electric vehicle (BEV) batteries, lithium cobalt (LCO) batteries, lithium iron (LFP) batteries; and lithium-ion (Li) batteries, and lead acid batteries. Silicon is incorporated in the PDC material at a molecular level when reacting a polymer derived ceramic precursor and a silicon hydride constituent or a silicon alkoxide constituent to form a PDC composition useful as a powdered battery anode material. A predetermined amount of divinylbenzene is added as a crosslinker and a modifier to increase free carbon content. The resulting battery anode materials increase the specific capacity of a battery measured in milliampere-hours per gram (mAh / g) and increase the life cycle of a battery while minimizing distortion and stress of the anode structure.

A thermally conductive silicone adhesive composition is provided, comprising: (A) at least one alkenyl-containing organopolysiloxane, (B) at least one chain extender comprising terminal silane-hydrides, (C) at least one crosslinking agent comprising side-attached silane-hydrides, (D) at least one catalyst, (E) at least one thermally conductive filler selected from alumina, aluminum nitride, or combinations thereof, and (F) at least one core-shell solid polymer particle; wherein the molar ratio of component (B) to component (C) is greater than 1:1 and less than 10:1. The composition exhibits excellent interstitial stability after curing, while maintaining commendable thermal conductivity and good flowability.

The present invention relates to a coated cooking element (1) for a kitchen utensil or electrical cooking appliance, comprising a metal substrate (2) coated, on at least one face (2a), with a coating (3) consisting of the following layers, in this order starting from the metal substrate (2): (3a) a sol-gel base layer obtained from at least one sol-gel mixture (SG) comprising a metal alkoxide precursor having an aliphatic chain comprising at least one unsaturation and / or substituted by a thiol group, and (3c) a finishing layer at least partially in contact with the layer (3a) and comprising a silicone elastomer obtained from at least one organopolysiloxane bearing vinyl reactive functions (-CH=CH2) and at least one other organopolysiloxane bearing silyl hydride reactive functions (-Si-H) or thiol reactive functions (-S-H).

Embodiments of the present disclosure are directed towards a method of preparing a silanol-functional polyolefin that includes combining, under thermal conditions to effect synthesis of a silanol moiety, starting materials comprising A) a silyl hydride-functionalized polyolefin, optionally B) a solvent, C) a peroxy acid, optionally D) a neutralizing agent thereby forming a reaction mixture that under the thermal conditions produces the silanol-functional polyolefin having the silanol moiety.

Provided is a thermal interface material containing a divinyl polydimethylsiloxane, a chain extender, a crosslinker, 80 volume-percent or more thermally conductive filler, treating agent composition, platinum hydrosilylation catalyst, and up to 0.2 weight-percent hydrosilylation inhibitor; where the wherein weight-percent values are relative to thermal interface material composition weight, volume-percent values are relative to thermal interface material composition volume, the molar ratio of silyl hydride groups to vinyl groups in the thermal interface material composition is 0.4 or more and at the same time is 1.0 or less, and the molar ratio of silyl hydride functionality from the chain extender to silyl hydride functionality from the crosslinker is 13 or more and at the same time 70 or less.

The invention provides an installation part for fixing a wire harness and a production method thereof, and relates to the technical field of wire harness installment, the installation part comprises a rubber clamp formed by splicing at least two split clamp parts, the rubber clamp is in a circular ring shape, the wire harness penetrates through an inner ring hole of the rubber clamp and is wrapped and clamped by the rubber clamp, and the rubber clamp is in interference fit with an installation position of the rubber clamp; the split clamping parts are in a sector ring shape, the end faces of the two sides of the split clamping parts are attached and spliced, and the inner arc faces of the split clamping parts are attached and clamped with the wire harness. The split clamping parts comprise the following raw material components in parts by weight: 75-100 parts of raw silicone rubber, 10-35 parts of silicon dioxide, 7-25 parts of silicon hydride, 5 parts of a catalyst and 15 parts of a flame retardant. The problems that in the prior art, looseness is prone to occurring, the protection performance is poor, and adaptability is poor are solved.

A two-part addition curable thermally conductive adhesive composition comprising: A) a vinyl functional polysiloxane having at least two vinyl groups per molecule, B) at least one hydrosilylation catalyst, C) at least one condensation catalyst, D) at least one silyl hydride functional polysiloxane, E) at least one thermally conductive filler, and D) at least one silane hydride functional polysiloxane, f) at least one SiH-functional silane, and G) at least one Q-branched alkenyl polymer.

The present invention provides a liquid polysiloxane comprising a siloxane-thiourea segment and a crosslinkable functional group(s) selected from one or more ethylenically unsaturated groups, silyl hydride groups, alkylenethiol groups and combinations thereof.

A curable silicone composition containing, by weight based on the total weight of the curable silicone composition, (A) from 0.5% to 50% of an alkenyl-functional polyorganosiloxane having an average of at least two alkenyl groups per molecule; (B) a silyl hydride functional polyorganosiloxane having an average of at least two silicon atom-bonded hydrogen atoms per molecule; where the silyl hydride functional polyorganosiloxane is present in an amount sufficient to provide a molar ratio of silicon atom-bonded hydrogen atoms to alkenyl groups for the composition of 0.5 to 10; (C) a platinum catalyst; (D) 66%to 95%of an electrically conductive filler; and (E) 0.1%to 0.8%of a polyether that is a copolymer containing an ethylene oxide unit and a propylene oxide unit and having an allylic end group.

A method of making a curable thermally conductive composition, comprising the steps of: I) preparing an admixture comprising the following components (A1) an alkenyl-functional polyorganosiloxane of formula (I), (A2) a silyl-hydride functional polyorganosiloxane having an average of at least two silicon atom-bonded hydrogen atoms per molecule and free of a silicon atom-bonded alkyloxy group, (A3) a platinum-based hydrosilylation reaction catalyst, (B) from 92 to 97 weight percent of a thermally conductive filler, based on the weight of the curable thermally conductive composition; and (C) a monotrialkoxysiloxy-terminated polydiorganosiloxane of formula (III), where the silyl-hydride functional polyorganosiloxane is present in an amount to provide a molar ratio of silicon atom-bonded hydrogen atoms in the silyl-hydride functional polyorganosiloxane (A2) to alkenyl groups in the alkenyl-functional polyorganosiloxane (A1) in a range of from 0.2 to 0.65; where the monotrialkoxysiloxy-terminated polydiorganosiloxane is present in an amount of from 20 to 80 weight percent, based on the combined weights of components (A1), (A2), (A3), and (C); II) curing the admixture obtained from step I) by heat, thereby forming a pre-cured composite; and III) admixing the pre-cured composite obtained from step II) with (D) a condensation reaction catalyst and (E) a specific alkoxysilane compound of formula (V); thereby obtaining the curable thermally conductive composition.

An electronic device includes a semiconductor die having a multilevel metallization structure including stacked levels with respective dielectric layers and metal lines, and a low leakage, low hydrogen diffusion barrier layer on one of the stacked levels. The diffusion barrier layer contacts a side of the dielectric layer and the metal line of the one of the stacked levels, and the diffusion barrier layer includes silicon nitride material having a first bond percentage ratio of ammonia to silicon nitride that is greater than a second bond percentage ratio of silicon hydride to silicon nitride.

A method for preparing a curable liquid silicone composition includes: (a) combining the following components to form a catalyst / inhibitor masterbatch: (i) a platinum hydrosilylation catalyst; (ii) a tetrahydrocarbylthiuram disulfide having a flow point of 50 DEG C or higher; and (iii) an aromatic silicone carrier; and (b) combining the catalyst / inhibitor masterbatch with a vinyl functional silicone and a silyl hydride functional silicone to form a curable composition.

The present disclosure generally relates to a method for producing a fire-resistant gypsum board including a gypsum core, the method including: providing a calcium sulfate slurry including a silicone oil having a Si-H hydride content of 0.01 equivalents of silicon or less per equivalent of silicon in an amount of 0.5 to 1.5 weight percent based on the mass of the gypsum core; setting the calcium sulfate slurry; and drying the set gypsum material to provide a gypsum core. The present disclosure also relates to a fire-resistant gypsum board including a gypsum core that shrinks less than 6 volume percent when heated to 850°C, the gypsum core including a silicone oil having a Si-H hydride content of 0.01 equivalents of silicon or less per equivalent of silicon, present in an amount ranging from 0.05 to 1.5 weight percent based on the mass of the gypsum core.

The composition comprises an unsaturated compound (A) containing at least one aliphatic unsaturated group per molecule, wherein the unsaturated compound (A) also contains at least one silicon-bonded hydrogen atom per molecule, and / or the composition further comprises a silicon hydride compound (B) containing at least one silicon-bonded hydrogen atom per molecule. The composition further comprises a catalyst (C). The catalyst (C) has the formula X2Pt(II)Y2 (wherein each X is the same and selected from a fluorinated acetate group or a halide, and each Y is independently selected from a substituted or unsubstituted pyridine group, provided that if each Y is substituted, it is not linked to other Ys).