327 results about "Organic tin compound" patented technology

An EUV light source is disclosed which may comprise at least one optical element having a surface, such as a multi-layer collector mirror; a laser source generating a laser beam; and a source material irradiated by the laser beam to form a plasma and emit EUV light. In one aspect, the source material may consist essentially of a tin compound and may generate tin debris by plasma formation which deposits on the optical element and, in addition, the tin compound may include an element that is effective in etching deposited tin from the optical element surface. Tin compounds may include SnBr4, SnBr2 and SnH4. In another aspect, an EUV light source may comprise a molten source material irradiated by a laser beam to form a plasma and emit EUV light, the source material comprising tin and at least one other metal, for example tin with Gallium and / or Indium.

To suppress the adherence of debris as a result of a radiating fuel, such as tin or the like, within a vessel for forming high density and high temperature plasma of an extreme UV radiation source device, and to eliminate deposited tin and / or tin compounds with high efficiency, hydrogen radical producing parts are provided in the vessel; and hydrogen radicals are produced in the vessel so that deposition of tin and / or a tin compound is suppressed in the area with a low temperature of the device, such as a focusing mirror or the like, and the deposited tin and / or tin compound is eliminated.

A process for preparing a naphtha reforming catalyst has been developed. The process involves the use of a chelating ligand such as ethylenediaminetetraacetic acid (EDTA). The aqueous solution of the chelating ligand and a tin compound is used to impregnate a support, e.g., alumina extrudates. A platinum-group metal is also an essential component of the catalyst. Rhenium may also be a component. A reforming process using the catalyst has enhanced yield, activity, and stability for conversion of naphtha into valuable gasoline and aromatic products.

The present invention provides a process for preparing benzoprostacycline derivatives of formula (1), i.e. 5,6,7-trinor-4,8-inter-m-phenylene PGI2 derivatives, and vinyl tin compounds of formula (III) as starting materials for the same.

The present invention relates to a composition comprising: (i) an anti-microbial agent comprising a polymeric biguanide, alone or in combination with at least one other microbiologically active component selected from the group consisting of quaternary ammonium compounds, monoquaternary heterocyclic amine salts, urea derivatives, amino compounds, imidazole derivatives, nitrile compounds, tin compounds or complexes, isothiazolin-3-ones, thiazole derivatives, nitro compounds, iodine compounds, aldehyde release agents, thiones, triazine derivatives, oxazolidine and derivatives thereof, furan and derivatives thereof, carboxylic acids and the salts and esters thereof, phenol and derivatives thereof, sulphone derivatives, imides, thioamides, 2-mercapto-pyridine-N-oxide, azole fungicides, strobilurins, amides, carbamates, pyridine derivatives, compounds with active halogen groups, and organometallic compounds; and (ii) an amphoteric co-polymer of the Formula (1): wherein:[A] is of Formula (9), [B] is of Formula (10), [C] is of Formula (12), [D] is of Formula (13), and X is of Formula (11), wherein [A], [B], [C] and [D] may occur in any order; T is an optionally substituted substituent; L, G and Z each independently is an optionally substituted linking group; R1, R2 and R3 are each independently H, optionally substituted C1-20-alkyl or optionally substituted C3-20-cycloalkyl; R4 and R5 are each independently H or C1-4-alkyl; q is 15 to 1000; p is 3 to 50; J is an optionally substituted hydrocarbyl group; F is an acidic substituent; E is a basic substituent; m is 0 to 350; n is 1 to 75; v is 0 to 100; y is 1 to 100; b is 0, 1 or 2; s is 0 or 1; w is 1 to 4; and provided that at least one of R4 and R5 is H.

An object of the present invention is to provide a curable composition made mainly of an organic polymer having a reactive silicon group, exhibits a good curability without using any organic tin compound substantially, and gives a cured product having a sufficient strength; and to provide a catalyst composition. The object is solved by a curable composition, comprising a polymer (A) having a silicon-containing group which can be crosslinked by forming a siloxane bond, and a fluoride salt compound (B).

The invention provides a preparation method for nanometer zinc hydroxystannate and nanometer zinc stannate. Said method uses tin compounds as raw materials to prepare zinc hydroxystannate with particle size of 2-100 nm. Nanometer zinc stannate can be obtained by sintering the zinc hydroxystannate at high temperature. Zinc hydroxystannate (xZnO*ySnO*zH2O) has a molar ratio of x : y : z at 1 : 0.8-1.4 : 1-5. They can be used alone or mixed for polymer materials, and has a good effect on flame retardancy and smoke suppression. Nanometer zinc hydroxystannate can merely be used in the material operating less than 180DEG C, while nanometer zinc stannate can be used for various polymer materials. In addition, both can be also used for gas-sensitive materials and lubricant additives.

Improvements in the tensile mechanical properties and dynamic viscoelastic properties of silica-reinforced sulfur-vulcanized rubbers can be achieved by compounding elastomers with silica, in the presence of a silane and a catalytic amount of an alkyl tin compound at a high compounding temperature.

The invention is an adhesive composition comprising a) one or more silane functional prepolymers comprising a polyether or a polyolefin backbone and silane moieties capable of silanol condensation; b) one or more isocyanate functional prepolymers comprising a polyether backbone and isocyanate moieties; c) one or more organotin compounds or titanate or zirconate compounds having one or more ligands comprising a hydrocarbyl phosphate ester or a hydrocarbyl sulfonate ester, or a mixture thereof; d) a tertiary amine or an anhydrous strong organic acid which is miscible with the polymer and enhances the bonding of the adhesive to a coated unprimed substrate. In one embodiment, the invention is a method of bonding two or more substrates together using the adhesive compositions of this invention. The process comprises applying an adhesive as described herein to one or more of the substrates; contacting the one or more substrates with the adhesive disposed between the substrates; and allowing the adhesive to cure.

An object of the present invention is to provide a curing composition which is practically curable and highly adhesive even though a non-organotin compound is included as a curing catalyst. Problems involved are solved by a curing composition characterized by including (A) an organic polymer having one or more silicon-containing groups capable of cross linking by forming siloxane bonds, (B) a metal carboxylate and / or carboxylic acid, and (C) a silicon compound having a hetero atom on the carbon atom in the α or β position with respect to the silicon atom.

The invention provides a flame-retardant dealcoholization type room-temperature curing silicon rubber, comprising: (1) polysiloxane, wherein the end of the polysiloxane is trimethoxy; (2) reinforcing fillers such as white carbon black, calcium carbonate and the like; (3) flame-retardant fillers such as aluminum hydroxide, zinc carbonate, carbon black and the like; (4) platinum compound added after the mixing; and (5) a condensation curing agent which comprises methyltrimethoxy silane, a silane coupling agent, organic titanate or organic tin compounds. The flame retardant dealcoholization type room-temperature curing silicon rubber of the invention has the characteristics of quick curing, excellent binding force to various base materials, good flame retardance, no halogen and the like.

A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a lanthanide compound, (b) an organoaluminum hydride, and (c) a tin halide compound.

The invention discloses a tin compound superlattice barrier semiconductor transistor, comprising a superlattice barrier layer, wherein the superlattice barrier layer is formed by multi-cycle thin film layers overlapped alternatively, and the thin film layer is composed of tin compound and another doped tin compound. By using the novel compounds of tin and the doping of the tin compounds, a multi-cycle superlattice barrier layer process is formed to obtain low dislocation density, smooth profile of HEMT (High Electron Mobility Transistor), low chip square resistance; the multi-cycle superlattice barrier layer with high conductive performance, high driving current and low MOS (Metal Oxide Semiconductor) interface state density is achieved, and the two-dimensional electron gas concentration or the two-dimensional hole gas concentration in a channel layer is also improved.

Zinc stannate material has excellent performances such as photocatalysis, flame redardation, smoke inhibition and the like, and the invention provides a preparation method for nanometer zinc stannate. According to the method, a cheap stannum compound is taken as the raw material for preparation of zinc stannate with a particle size of 5-100 nm. The obtained zinc stannate is controllable in size and morphology, is widely applicable to polymer materials, and has extremely good effect of retarding flame and inhibiting smoke; the zinc stannate is applicable to exploitation of aldehyde-removing flame-retardant materials; and also zinc stannate is applicable to lubricating oil additives and gas-sensitive materials.

Rare-earth and calcium and zinc stabilizing agent for polyethylene is produced by treating rare-earth and calcium and zinc compounds with surface modifying agent, and optimizing with polyethylene and anti-oxidating agent or / and organic tin compounds or organic phosphonite compounds or / and C8 - C22 metal saponified materials of calcium or zinc or magnesium or aluminum or / and ultraviolet absorber or / and urate or / and polyhydroxy esterified materials or / and polyethylene lubricant to be obtained. It has high quality and no toxicity, is produced with low cost and in a simple process.

The invention belongs to the field of chemical engineering, and specifically, relates to a composite stabilizing agent for a transparent polyvinyl chloride (PVC) material and a preparation method thereof. The composite stabilizing agent for a PVC material comprises: by weight, 55 to 120 parts of main stabilizing agents, 5.5 to 25 parts of auxiliary stabilizing agents and 1.55 to 3.5 parts of auxiliary agents. The main stabilizing agents comprise: by weight, 50 to 90 parts of one or more organic tin compounds and 5 to 30 parts of one or more rare earth compounds. The auxiliary stabilizing agents comprise: by weight, 1 to 10 parts of one or more phosphite ester compounds, 4 to 10 parts of epoxy soybean oil and 0.5 to 5 parts of beta-diketone compounds. The auxiliary agents comprise: by weight, 1.5 to 3 parts of an emulsifier and 0.05 to 0.5 parts of an antifoaming agent. The composite stabilizing agent for a PVC material has good thermostability, does not influence PVC product transparency, and has certain machinability and lubricity. The preparation method cam greatly reduce a product production cost without change of thermostability through addition of the auxiliary stabilizing agents having relatively low costs, and has good economic benefits.

A problem of the present invention is to provide a curable composition which gives good curability, adhesiveness and storage stability by use of a catalyst other than organic tin catalysts. The above problem is solved by a curable composition, comprising: (A) one or more organic polymers having a reactive-silicon-containing group, and (B) a silanol condensation catalyst consisting of one or more compound(s) selected from organic tin compounds, carboxylic acids, and amine compounds, wherein at least one part of the reactive-silicon-containing group(s) of the organic polymer(s) (A) is represented by the following general formula (1): —(CR22)2—(SiR12-aXaO)m—SiX3 (1), and the silanol condensation catalyst (B) consists of amine compound(s) (B1) or consists of amine compound(s) (B1) and a carboxylic acid (B2), and when the mol number of the amine compound(s) is regarded as 1, the ratio by mol of the total amount of the carboxylic acid(s) to the amount of the amine compound(s) is 0.1 or less.

The invention relates to an anti-fouling paint composition. Film-forming substances of the anti-fouling paint are fluororesin and organic silicon resin. The paint composition comprises the components in parts by weight: 5-25 parts of film-forming substance, 5-25 parts of organic solvent and 1-10 parts of pigment. The anti-fouling paint also contains a leveling agent. According to the invention, the fluororesin and organic silicon resin are used as the film-forming substances, the characteristic of low surface energy of the film-forming substances is utilized, and other auxiliary agents are matched to obtain the anti-fouling paint; and the obtained anti-fouling paint has no harm to human body and ocean environment, and has better anti-fouling action on biological dirt. The anti-fouling paint composition is suitable for antifouling of fishing nets, vessels, underwater equipment and other ocean equipment, and is free of mercury or organo-tin compounds capable of causing organic solvent pollution on the sea.

The invention provides a preparation method of sucrose 6 ester. The preparation method comprises the following steps: preparing a reaction solution of sucrose and an organic tin compound; atomizing the reaction solution to form small liquid drops; fully mixing and contacting the droplets with a gasified dehydration medium, and carrying out dehydration reaction on the droplets so as to generate anintermediate mixture containing the sucrose organic tin ester droplets; separating the intermediate mixture to obtain a sucrose organic tin ester solution and a dehydrated gas-liquid mixture; recovering the sucrose organic tin ester solution obtained in the separation step and circulating the sucrose organic tin ester solution to the atomization step and the dehydration step for multiple times; and carrying out acylation reaction on the sucrose organic tin ester solution and organic anhydride to generate sucrose 6 ester. According to the method, rapid and efficient dehydration of the esterification reaction can be realized in an extremely short time, the sucrose organic tin ester intermediate is efficiently prepared, decomposition of carbohydrates and side reactions in the system are reduced to a great extent, the energy consumption is low, the product yield is high, the selectivity is high, and the sucrose reaction degree is more thorough.

The present invention relates to high purity monoalkyltin compounds, more specifically to alkyltin compound compositions containing monoalkyltin as major compound, and minor quantities of di- and / or trialkyltin compounds. The present invention also relates to the preparation processes of such high purity monoalkyltin compounds, as well as to the uses of said monoalkyltin compounds as chlorine-containing polymer-stabilizers, glass coating chemicals and catalysts, as well as articles comprising at least one polymer matrix and a high purity monoalkyltin compound.

The invention provides a polyisocyanate composition which can restrain coloring even adding and storing compounds including tin. The polyisocyanate composition at least employes 1,6-diisocyanato and includes ppm chlorinated compounds with 1-100 mass of chlorine.

The invention discloses a system and a method for recycling tin from a tin-stripping waste liquid and circularly preparing novel tin-stripping liquid. The system comprises a tin-stripping waste liquid barrel, a reaction tank, a centrifugal machine, a desorption tower, a mixing barrel and a liquid storage barrel which are sequentially connected through pipes; the system also comprises an electrical control system which controls a pump to pump the tin-stripping waste liquid to the reaction tank from the tin-stripping waste liquid barrel; the reaction tank is provided with a steam pipe; the tin-stripping liquid is heated by introducing steam to the reaction tank through the steam pipe so as to make tin compounds fully precipitated; at the same time, volatile nitric acid steam is recycled to a liquid barrel through the desorption tower; the tin-containing precipitate is centrifuged by the centrifugal machine to separate stannic oxide and a clear liquid; the clear liquid is conveyed to the liquid barrel; nitric acid, an infiltrated acceleration additive, a copper-protecting additive and a stable and precipitate-inhibiting agent are complementally added in the liquid barrel; and a mixed tin-stripping regenerated liquid is conveyed to the storage barrel. The method can not only separate metal cations of the tin by a physical heating hydrolysis and steam air flotation principle, is simple in method and low in energy consumption, prevents addition of external chemical substances and prevents component pollution to the regenerated novel tin-stripping liquid.

An object of the present invention is to provide a curing composition which is practically curable and highly adhesive even though a non-organotin compound is included as a curing catalyst. Problems involved are solved by a curing composition characterized by including (A) an organic polymer having one or more silicon-containing groups capable of cross linking by forming siloxane bonds, (B) a metal carboxylate and / or carboxylic acid, and (C) a silicon compound having a hetero atom on the carbon atom in the α or β position with respect to the silicon atom.

A primer composition comprises (a) a fluoroalkylene or fluoropolyether compound having at least one alkenyl radical and at least one hydrolyzable silyl radical, (b) an organic titanic acid ester, (c) an organic tin compound, and (d) a silane compound. The primer composition is fully adherent to various substrates of metals, glass, ceramics, cement, mortar, carbon, and plastics, and is particularly suited for use with a thermosetting elastomer composition based on a polymer having at least two alkenyl radicals and a perfluoropolyether structure in its backbone.

The invention discloses a pollution / rain flashover resistant paint. The paint comprises the following components in parts by weight: 40-50 parts of silicon rubber, 40-50 parts of MQ silicon resin, 50-80 parts of a solvent, 5-20 parts of fillers, 50-70 parts of silicone acrylate resin, 0.5-3 parts of a curing agent and 3-6 parts of catalysts, wherein the silicon rubber is hydroxyl-terminated polydialkylsiloxane; the MQ silicon resin is methyl hydrogen-containing MQ silicon resin with M-Q ratio being 0.6-0.9; the solvent is one or mixture of butyl acetate, ethyl acetate and methyl acetate; the fillers are one or more of nano calcium carbonate, fumed silica, titanium dioxide and silica micropowder, which are subjected to surface modification treatment by silane; the curing agent is zirconiumisooctoate, cobalt isooctoate or cobalt naphthenate; and the catalysts are tin compounds or organic titanium compounds. The invention also discloses a preparation method of the pollution / rain flashover resistant paint.

A problem of the present invention is to provide a curable composition which gives good curability, adhesiveness and storage stability by use of a catalyst other than organic tin catalysts. The above problem is solved by a curable composition, comprising: (A) one or more organic polymers having a reactive-silicon-containing group, and (B) a silanol condensation catalyst consisting of one or more compound(s) selected from organic tin compounds, carboxylic acids, and amine compounds, wherein at least one part of the reactive-silicon-containing group(s) of the organic polymer(s) (A) is represented by the following general formula (1): —(CR22)2—(SiR12-aXaO)m—SiX3 (1), and the silanol condensation catalyst (B) consists of amine compound(s) (B1) or consists of amine compound(s) (B1) and a carboxylic acid (B2), and when the mol number of the amine compound(s) is regarded as 1, the ratio by mol of the total amount of the carboxylic acid(s) to the amount of the amine compound(s) is 0.1 or less.

A method of carrying out a reaction comprising the steps of: mixing at least one organic reaction component with at least one fluorous reaction component having the formula:X1Sn(R)n[Rs(Rf)]3-n, X1X2Sn[Rs(Rf)]2 or O═Sn[Rs(Rf)]2wherein n is 1 or 2, R is a C1-C6 alkyl group, X1 and X2 are independently, the same or different, H, F, Cl, Br, I, N3, OR1, OOR1 SR1, SeR1, CN, NC, NR1R2, an aryl group, a heteroaryl group, an alkyl group of 1 to 20 carbons, an alkenyl group, an alkynyl group, —C(O)R3, M((Rs′)(Rf′))3, OM((Rs′)(Rf′))3 or OOM((Rs′)Rf′))3, wherein M is Si, Ge, or Sn, and wherein R1 and R2 are each independently the same or different H, an alkyl group, —SO2R3 or —C(O)R3, wherein R3 is an alkyl group or an aryl group, and wherein Rs and Rs′ are each independently the same or different a spacer group, and wherein Rf and Rf′ are each independently the same or different a fluorous group; carrying out a reaction to produce an organic product; and after producing the organic product, separating any excess of the fluorous reaction component and any fluorous byproduct of the fluorous reaction component using a fluorous separation technique. Several compounds have the formula:X1Sn(R)n[Rs(Rf)3-n, X1X2Sn[Rs(Rf)]2 or O═Sn[Rs(Rf)]2.