119 results about "Ketenimine" patented technology

A series of noble metal organometallic complexes of the general formula (I): MLaXb(FBC)c, wherein M is a noble metal such as iridium, ruthenium or osmium, and L is a neutral ligand such as carbonyl, alkene or diene; X is an anionic ligand such as chloride, bromide, iodide and trifluoroacetate group; and FBC is a fluorinated bidentate chelate ligand such as beta diketonate, beta-ketoiminate, amino-alcoholate and amino-alcoholate ligand, wherein a is an integer of from zero (0) to three (3), b is an integer of from zero (0) to one (1) and c is an 10 integer of from one (1) to three (3). The resulting noble metal complexes possess enhanced volatility and thermal stability characteristics, and are suitable for chemical vapor deposition(CVD) applications. The corresponding noble metal complex is formed by treatment of the FBC ligand with a less volatile metal halide. Also disclosed are CVD methods for using the noble metal complexes as source reagents for deposition of noble metal-containing films such as Ir, Ru and Os, or even metal oxide film materials IrO2, OsO2 and RuO2.

A metalorganic complex composition comprising a metalorganic complex selected from the group consisting of: metalorganic complexes comprising one or more metal central atoms coordinated to one or more monodentate or multidentate organic ligands, and complexed with one or more complexing monodentate or multidentate ligands containing one or more atoms independently selected from the group consisting of atoms of the elements C, N, H, S, O and F; wherein when the number of metal atoms is one and concurrently the number of complexing monodentate or multidentate ligands is one, then the complexing monodentate or multidentate ligand of the metalorganic complex is selected from the group consisting of beta-ketoiminates, beta-diiminates, C2-C10 alkenyl, C2-C15 cycloalkenyl and C6-C10 aryl.

The present invention provides metal-containing compounds that include at least one β-diketiminate ligand, and methods of making and using the same. In certain embodiments, the metal-containing compounds include at least one β-diketiminate ligand with at least one fluorine-containing organic group as a substituent. In other certain embodiments, the metal-containing compounds include at least one β-diketiminate ligand with at least one aliphatic group as a substituent selected to have greater degrees of freedom than the corresponding substituent in the β-diketiminate ligands of certain metal-containing compounds known in the art. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for β-diketiminate ligands are also provided.

The present invention provides metal-containing compounds that include at least one β-diketiminate ligand, and methods of making and using the same. In some embodiments, the metal-containing compounds are homoleptic complexes that include unsymmetrical β-diketiminate ligands. In other embodiments, the metal-containing compounds are heteroleptic complexes including at least one β-diketiminate ligand. The compounds can be used to deposit metal-containing layers using vapor deposition methods. Vapor deposition systems including the compounds are also provided. Sources for β-diketiminate ligands are also provided.

The invention discloses a special adhesive for underwater construction, and the special adhesive comprises an A component and a B component at a weight ratio of 100:(20-100):25, wherein the A component is prepared from the following raw materials in parts by weight: 30-60 parts of modified epoxy resin, 5-30 parts of tackifier, 2-10 parts of accelerant, 5-15 parts of reactive diluent, 0.1-0.3 parts of surfactant, and 10-35 parts of filler powder; the B component is prepared from the following raw materials in parts by weight: 0-60 parts of ketimine, 0-60 parts of phenalkamine, 30-65 parts of modified polyamide, 1-6 parts of curing accelerator, and 2-15 parts of moisture repellent. The special adhesive for underwater construction has the advantages of being good in bonding strength in water, good in toughness, water-resistant, capable of resisting chemical attack, strong in initial viscous force and convenient to construct, and great improvement is brought for the underwater construction field.

A coating composition comprising a binder of a. polyisocyanate crosslinking agent; b. an isocyanate-reactive component having at least one compound having the following formula: wherein X is an aliphatic or cycloaliphatic group, R<1 >and R<2 >are the same or different organic groups that are inert to isocyanate groups, and n is 2 to 4, and c. optionally, a polymeric component having a number average molecular weight of 5,000 to 50,000 having reactive groups that crosslink with an isocyanate, where the reactive groups are hydroxyl, carboxyl, glycidyl, amine and any mixtures thereof; and d. optionally, an oligomeric component having a number average molecular weight of 300 to 3,000 having reactive groups that crosslink with an isocyanate, where the reactive groups are hydroxyl, carboxyl, glycidyl, amine, aldimines, phosphoric acid, ketimine and any mixtures thereof; and contains the following additives: disubstituted phenol antioxidant or a hydroperoxide decomposer, an ultraviolet light absorber, and a hindered amine light stabilizer.

The invention relates to a two-component modified epoxy adhesive for stone combination and a preparation method thereof, which is characterized in that an A component is prepared by bisphenol A epoxy resin, bisphenol F epoxy resin, an active diluent, a bisphenol A, an anti-yellowing additive, a wetting agent, and inorganic powder, and a B component is prepared by self-made ketoimine, nonyl phenolglycidyl ether modified aliphatic amine, alicyclic amine, a coupling agent, a wetting agent, and a curing accelerator; the A and B components are mixed and used according to a mass ratio of 10:2.5-5.In the ketoimine preparation, the mass ratio of butanone to diethylenetriamine is 70-90:100; in the modified aliphatic amine preparation, the mass ratio of nonyl phenol glycidyl ether to diethylenetriamine is 100:21-32; the two-component modified epoxy adhesive for stone combination has the characteristics of good curing performance, and low cost.

The invention relates to a process for the production of liquid, storage-stable isocyanate mixtures with a low color index having carbodiimide-(CD) and / or uretone imine (UI) groups, the isocyanate mixtures that can be obtained by this process and their use for the production of blends with other isocyanates or for the production of isocyanate group-containing pre-polymers and also of polyurethane plastics, preferably polyurethane foamed plastics.

The invention relates to a solvent-free type epoxy zinc rich primer and a preparation method of the solvent-free type epoxy zinc rich primer. The primer comprises an ingredient A and an ingredient B, wherein the ingredient A mainly comprises the following ingredients in parts by weight: 20 to 50 parts of liquid epoxy resin, 5 to 20 parts of reactive diluents, 60 to 80 parts of zinc powder and 4 to 10 parts of adhesion promoters, the ingredient B comprises the following ingredients in parts by weight: 20 to 60 parts of cashew modified amine, 20 to 60 parts of ketimine, 0.5 to 1.5 parts of adhesion promoters and 5 to 20 parts of reactive diluents, and the weight ratio of the ingredient A to the ingredient B is (4.5-5.5):1. The solvent-free type epoxy zinc rich primer disclosed by the invention has no volatile solvents and is economic and environmental-friendly.

The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures which are characterized by a low color number and which contain carbodiimide (CD) and / or uretonimine (UI) groups. This invention also relates to the isocyanate mixtures obtained by this process, to their use for the preparation of blends with further isocyanates, and to the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams from these isocyanate mixtures.

A method can be used for the production of a coated substrate. The coating contains copper. A copper precursor and a substrate are provided. The copper precursor is a copper(I) complex which contains no fluorine. A copper-containing layer is deposited by means of atomic layer deposition (ALD) at least on partial regions of the substrate surface by using the precursor. Optionally, a reduction step is performed in which a reducing agent acts on the substrate obtained in the layer deposition step. In various embodiments, the precursor is a complex of the formula L2Cu(X∩X) in which L are identical or different σ-donor-π acceptor ligands and / or identical or different σ,π-donor-π acceptor ligands and X∩X is a bidentate ligand which is selected from the group consisting of β-diketonates, β-ketoiminates, β-diiminates, amidinates, carboxylates and thiocarboxylates.

The present invention provides a composition comprising a polymer or a compound having at least one 5-membered ring dithiocarbonate group represented by general formula (I):(wherein, in the formula, R1, R2, and R3 are the same or different, each of which denotes hydrogen or a lower alkyl), and a ketimine derivative, an enamine derivative, or an aldimine derivative. The composition is useful in coatings, adhesives, inks, sealing agents, sealants, and the like.

This invention provides a one-part, room temperature moisture curable resin composition which comprises a ketimine prepared by reacting a ketone having a substituent at α position and a polyamine having at least two amino groups within its molecule wherein α position is methylene, and a main polymer which is an epoxy resin and / or a modified silicone having at least two hydrolyzable alkoxysilyl groups in its molecule, and which exhibits good shelf stability and high curing rate once taken out of the container, and which may further exhibit flexibility; a one-part, room temperature moisture curable resin composition which exhibits good shelf stability and curability as well as wet surface adhesion or initial thixotropic properties; a silicon containing compound having ketimine group whose reaction with the epoxy resin during the storage is prevented by the presence of a bulky alkyl group near the ketimine group and which exhibits good shelf stability and curability, and its production method; a one-part, room temperature moisture curable resin composition containing said silicon containing compound adapted as a latent curing agent which exhibits good shelf stability and short curing period once taken out of the container; and a novel method of ketimine synthesis.

The invention relates to a process for the preparation of liquid, storage-stable isocyanate mixtures of low color number and which contain carbodiimide (CD) and / or uretonimine (UI) groups, the isocyanate mixtures obtainable by this process, and to a process for the preparation of blends of these isocyanates with additional isocyanate components and to a process for the preparation of prepolymers containing isocyanate groups and of polyurethane plastics, preferably polyurethane foams.

The invention discloses an organophosphorus active flame-proof epoxide resin solidifying agent amino phosphonate ester and the preparing method. The amino phosphonate ester comprises the following parts: 3:1:1:1 absolute ethyl alcohol, phsophorus trichloride, organic amine (the structural formula is H2N-R-NH2)and acetone. The organic amine is diethylenetriamine, triethylene tetraamine, tetraethylene pentamine or 4, 4-diaminodiphenylmethane. The method comprises the following steps: 1, synthesizing diethyl phosphate with alcohol and phsophorus trichloride; 2, generating ketoimine with acetone and the organic amine by adding the anhydrating agent; 3, generating amino phosphonate with diethyl phosphate and ketoimine. The oxygen index of the product is more than 20 and less than 34.6. The invention is provided with the simple method and the simple operation.

A method for producing ketimine structure-containing alkoxysilane comprising reacting amino-functional alkoxysilane with a monocarbonyl compound by heating and azeotropically distilling off the produced water together with the monocarbonyl compound to yield ketimine structure-containing alkoxysilane, characterized by introducing additional monocarbonyl compound at the time of the azeotropic distillation of the produced water together with the monocarbonyl compound.

The invention discloses a method for asymmetric catalytic synthesis of a spirocyclic tetrahydrocarbazoline compound, comprising the steps: by taking 3-alkenyl indole and isatin derived ketimine as raw materials, a complex formed by chiral amine oxide and nickel trifluoromethane sulfonate as a catalyst and dichloromethane as a solvent, performing reaction on the raw materials at (-30) DEG C to (-10) DEG C at the normal pressure for 96-192h; then adding 6.0M HCl(solution) and performing reaction at 30 DEG C for 4-48h to obtain the chiral spirocyclic tetrahydro carbazoline compound, wherein the yield of the chiral spirocyclic tetrahydro carbazoline compound can reach up to 95%, and the enantioselectivity can reach up to 99%. According to the method provided by the invention, the catalytic reaction conforms with the green chemistry atom economy and has a good prospect in industrial application, thereby providing a new path for asymmetric synthesis of compounds with high anti-malarial activity (NITD609).

The invention discloses an N-sulfonylketimine compound and the preparation method thereof. The preparation method includes that alkine compound shown in formula (I) and a sulfonamide compound shown in formula (II) react in the presence of a MLYn transition metal catalyst in an inert organic solvent at 35-140 DEG C; and the reaction solution is subjected to a post-treatment to obtain the N-sulfonylketimine compound shown in formula (III). The method has the advantages that the reaction conditions is mild; the operation is convenient; the product quality is good; the yield is high; the environment friendliness is ensured; the whole production process is substantially harmless; and the operators are safe; the reaction is in accordance with the atom economic principle and has high utilization rate of the raw material. Since the N-sulfonylketimine is an excellent raw material for preparing pharmaceuticals, agricultural chemicals and chemical products, the preparation method has wide industrial application prospect.

A formulation, comprising: a) at least one metal-ligand complex, wherein one or more ligands are selected from the group consisting of β-diketonates, β-ketoiminates, β-ketoesterates, β-diiminates, alkyls, carbonyls, alkyl carbonyls, cyclopentadienyls, pyrrolyls, alkoxides, amidinates, imidazolyls, and mixtures thereof; and the metal is selected from Group 2 to 16 elements of the Periodic Table of the Elements; and, b) at least one aminoether selected from the group consisting of R1R2NR3OR4NR5R6, R1OR4NR5R6, O(CH2CH2)2NR1, R1R2NR3N(CH2CH2)2O, R1R2NR3OR4N(CH2CH2)2O, O(CH2CH2)2NR1OR2N(CH2CH2)2O, and mixtures thereof, wherein R1-6 are independently selected from group consisting of C1-10 linear alkyl, C1-10 branched alkyl, C1-10 cyclic alkyl, C6-C10 aromatic, C1-10 alkylamine, C1-10 alkylaminoalkyl, C1-10 ether, C4-C10 cyclic ether, C4-C10 cyclic aminoether, and mixture thereof.

The invention relates to a single-component epoxy primer and a preparation method thereof. The epoxy primer disclosed by the invention is a single-component system, and is prepared from the following raw materials in parts by weight: 100 parts of epoxy resin, 30-70 parts of ketimine curing agent, 30-100 parts of solvent, 10-20 parts of rutile SiO2, 20-30 parts of anti-rust pigment, 5-10 parts of mica powder, 3-8 parts of silane coupling agent, 2-6 parts of gaseous phase SiO2, 2-7 parts of dispersant, 0.5-5 parts of flatting agent and 0.5-5 parts of defoamer. The single-component epoxy primer is mainly applied to the primers with smooth substrate (galvanized plate, tin plate, aluminum alloy and the like) surfaces, the coating has excellent adhesive force, flexibility and penetration resistance, a firm adhesive force is provided for a heavy-duty composite coating, and the single-component epoxy primer has the characteristics of being convenient in single component use, cured at room temperature and the like.

The invention relates to a formula and a preparation method of a one-component aromatic polyurea coating. The one-component aromatic polyurea coating is prepared from the following materials in partsby weight: 20-40 parts of aromatic isocyanate, 10-15 parts of polyester polyol, 5-10 parts of polyether polyol, 26-28 parts of polytetrahydrofuran polyether, 3-5 parts of butanediol, 10-15 parts of ketimine, 0.1-0.5 part of an organotin catalyst and 5-20 parts of solvent oil. The preparation method comprises the steps of enabling the ketimine, as a sealing agent, and an aromatic isocyanate-based prepolymer to coexist in the same reaction system, and isolating the system from air by using an inert gas or nitrogen; once the system is in contact with the air, eliminating the sealing of the ketimine under the action of water, so that the released terminal amino group (-NH2) rapidly reacts with -NCO so as to form the one-component aromatic polyurea. The one-component aromatic polyurea coating provided by the invention has higher mechanical properties and stable performance at a high temperature, and can adapt to a high temperature working environment of 100-140 DEG C. The process provided by the invention is simple, does not require large equipment, and is suitable for large-scale popularization and application.

The invention provides a moisture-curing epoxy zinc phosphate over-rust primer which is prepared by mixing a component A and a component B in a weight ratio of 8:1, wherein the component A comprises 35-50% of epoxy resin, 5-7% of 509 zinc chrome yellow, 5-7% of 309 zinc chrome yellow, 5-7% of 109 zinc chrome yellow, 5-8% of iron oxide red, 6-8% of zinc phosphate, 5-9% of aluminum tripolyphosphate, 6-9% of diphenyl guanidine chromate, 6-8% of dimethylbenzene, 2-4% of n-butanol and 5-8% of cyclohexanone; and the component B comprises 85-90% of ketoimine modified fatty acid epoxy resin, 5-10% of dimethylbenzene and 3-5% of n-butanol. The invention has the advantages of excellent film-forming property, excellent anticorrosive and anti-rust properties, favorable adhesive force for the substrate, favorable flexibility and favorable impact resistance, and can quickly cure to form a film in a high-humidity environment (the relative humidity is less than or equal to 95%).

The invention relates to a soluble chiral diamino derivative, use and a preparation thereof, belongs to the organic chemistry field. A water-soluble chiral diamine-pure optical N-monosulfonated acylation-1,2-2-(2'-amino-phenyl)-1,2-ethylenediamine and its derivative or its salt, their uses and productions are disclosed. It's fast, simple, no need for other organic solvents or additives and has better effect than organic phase. Complex formed of the soluble chiral diamine and metal can be used for ketone and imine asymmetric catalytic hydrogenating reduction in aqueous phase.

The invention relates to a preparation method of a functional polycarboxylate-type water reducing agent for resisting a flocculating agent in machine-made sand. The preparation method comprises the following specific steps: firstly, modifying imide under the action of an amine catalyst to obtain o-phenyl ketene imide; then enabling ketene imine, an unsaturated carboxylic acid derivative and an oxidizing agent to be subjected to an in-situ polymerization reaction in molten polyethylene glycol monomethyl ether, adding alkyl halide after the reaction is completed, performing a Delepine reaction, and obtaining the functional polycarboxylic acid water reducing agent. The functional polycarboxylate-type water reducing agent for resisting the flocculating agent in the machine-made sand prepared by the method disclosed by the invention can eliminate the influence of the flocculating agent in the machine-made sand on the dispersion performance of concrete, and ensures the working performance, the mechanical property and the durability of the concrete.

The invention provides an amino-silicone bridge nitrogen-blending allyl zirconium catalyst, relating to a vinyl-polymerization IVB transition metal catalyst, in particular to a nitrogen-blending allyl ligand zirconium catalyst with an N-C-C-Si-N skeleton. The preparation method of the catalyst comprises the following steps of: dehydrogenating ketimine containing a substituent group in the protection of nitrogen by using lithium diisopropylamide (LDA); adding equimolar magnesium bromide to obtain magnesium salts A and then adding equimolar silane compounds to prepare a compound B; dehydrogenating once again by using the LDA to prepare amino-silicone bridge nitrogen-blending allyl lithium C; and finally reacting with ZrC14 to obtain the amino-silicone bridge nitrogen-blending allyl zirconium catalyst. The preparation method has the advantages of simplicity, simple and easy obtainment of materials, low cost and higher yield; and the catalyst displays very high catalytic activities when used for vinyl polymerization.

In a process for the accelerated reduction of organic substrates, selected from the group consisting of ester, amides, nitriles, acids, ketones, imines or mixtures thereof, the substrates are reacted with an amine borane, sulfide borane or ether borane complex as a borane source in the presence of organic accelerator compounds containing both Lewis acidic and Lewis basic sites in their structure, of which the Lewis acidic site can coordinate with the carbonyl or nitrile or imine group of the substrate and the Lewis basic site can coordinate with the borane.

Disclosed are one-component low temperature, moisture curable, storage stable coating compositions that include a silanol-functional silicone; an alkoxy-functional silicone; a flexibilizer comprising a reaction product of two or more reactants; and a curing agent selected from amines, aminosilanes, ketimines, aldimines, and combinations thereof. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and methods for coating substrates with such compositions.

The invention relates to solvent-free type fiber reinforced epoxy paint and a preparation method of the solvent-free type fiber reinforced epoxy paint. The solvent-free type fiber reinforced epoxy paint comprises an ingredient A and an ingredient B, wherein the ingredient A mainly comprises the following ingredients in parts by weight: 20 to 50 parts of liquid epoxy resin, 5 to 20 parts of reactive diluents, 10 to 40 parts of titanium pigment, 10 to 40 parts of toughening agents, 10 to 30 parts of fillings and 4 to 10 parts of adhesion promoters, the ingredient B comprises the following ingredients in parts by weight: 20 to 60 parts of cashew modified amine, 20 to 60 parts of ketimine, 0.5 to 1.5 parts of adhesion promoters and 5 to 20 parts of active diluents, and the weight ratio of the ingredient A to the ingredient B is (4.5-5.5):1. The solvent-free type fiber reinforced epoxy paint is economic and environmental-friendly, the toughness is high, and wider industrial application prospects are realized.

The invention discloses preparation of substituted saturated hydrocarbon and particularly relates to a synthesizing method of 2-nitropropane. The 2-nitropropane is prepared by oxidizing isohydrazone. The synthesizing method includes the steps of S1, condensing acetone, water and ammonia in the presence of a catalyst to generate ketimine, wherein the mass ratio of the acetone to the water is 1:(1-5), and the use amount of the catalyst is 5-11% of the use amount of the acetone; S2, oxidizing the ketimine obtained in the step S1 to form the isohydrazone, wherein reaction system temperature is 30-60 DEG C and heat-preservation reaction time is 0.5-3 hours; S3, oxidizing the isohydrazone obtained in the step S2 to form the 2-nitropropane, wherein reaction system temperature is 50-80 DEG C and heat-preservation reaction time is 0.5-3 hours; rectifying obtained primary reaction liquid to obtain qualified 2-nitropropane products. The synthesizing method has the advantages that the acetone, the ammonia and the water are used as the initial raw materials, and the method is mild in catalytic oxidizing reaction condition, simple in process, convenient to operate, suitable for large-batch 2-nitropropane production, simple in post-processing and high in product purity and does not coproduce acetone oxime or acetone azine.