151 results about "Organotitanium compound" patented technology

Nanoparticles comprising titanium, such as nanoscale doped titanium metal compounds, inorganic titanium compounds, and organic titanium compounds, their methods of manufacture, and methods of preparation of products from nanoparticles comprising titanium are provided.

The present invention discloses a two-component adhesion promoter composition for surface pretreatment, comprising two components, the first component, K1, comprising at least one hydrolyzable adhesion promoter substance A which is selected from the group comprising organosilicon compounds, organotitanium compounds, organozirconium compounds, and mixtures thereof; and the second component, K2, comprising at least one compound B which reacts with the adhesion promoter substance A or triggers or catalyzes condensation of the adhesion promoter substance A, and the first and the second components in the unopened state being present in two compartments (1, 2) separated from one another by at least one dividing wall (3). Additionally disclosed are the use of a pack (5) having two compartments (1, 2) which are separated from one another by a dividing wall, and a package (6) composed of a pack (5) and of a two-component adhesion promoter composition, in the compartments (1, 2) separated from one another by a dividing wall 3.

A carrier, including a magnetic particulate core material and a resin layer on the core material, wherein the resin layer includes a resin obtained by heat treatment of a copolymer including a site derived from a monomer component having the following formula (1) and a site derived from a monomer component having the following formula (2), and includes a cross-linked material obtained by hydrolysis of the copolymer to produce a silanol group and condensation using an organotitanium compound:

wherein R¹ represents a hydrogen atom or a methyl group; m represents an alkylene group having 1 to 8 carbon atoms; R² represents an alkyl group having 1 to 4 carbon atoms; R³ represents an alkyl group having 1 to 8 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms; X represents 10 to 90 mol %; and Y represents 10 to 90 mol %.

The invention relates to polyurethane elastomers, a process for the preparation of these polyurethane elastomers and a the preparation of elastomeric molded parts comprising these polyurethane elastomers. These elastomers comprise the reaction product of a polyol component, chain extenders and/or crosslinking agents, one or more amine catalysts, a catalyst mixture which contains at least one organic titanium compound and at least one organic zinc compound, and optionally an organic lithium carboxylate and/or an organic bismuth carboxylate; with a polyisocyanate component.

The invention relates to a preparation method of a carbon-coated sodium-micron-scale lithium titanate composite anode material. The method comprises steps as follows: lithium salt is dissolved in an aqueous solution of absolute ethyl alcohol, and the solution is marked a solution a; an organic titanium compound and a carbon source are dissolved in absolute ethyl alcohol, and the solution is marked a solution b; a chelating agent M is dissolved in absolute ethyl alcohol, ultrasonic dispersion is performed, and the solution is marked a solution c; the solution c is slowly dropwise added to the solution b while stirring, and white sol is obtained; then the solution a is slowly dropwise added to the white sol; after the sol is aged, heating, stirring, drying, grinding, sieving and calcination are performed, and the carbon-coated lithium titanate composite anode material is obtained. Lithium titanate has narrower particle size distribution and more uniform particle distribution, and sodium-micron-scale particles are uniformly inlaid to form particles with high tap density; the particle structure is loose and porous, the specific surface area of a formed electrode is larger, getting off of lithium ions in the lithium titanate material is facilitated, and the stability of the crystal structure of the lithium ions in the charge and discharge process is guaranteed.

A low friction composition containing addition-crosslinking organosilicon compounds, at least one oval to sphere-shaped solid and at least one laminar solid, and at least one component which is: a hydrocarbyl compound having at least 8 carbon atoms, optionally containing heteroatoms; a silane of the formula

(RO)_4-nSiX_n

• • where R is a monovalent C_1-16 hydrocarbyl radical and X is R or is a functional C_1-16 hydrocarbyl radical linking an epoxy or methacryloyloxy organic functional group and the silicon atom, an organozirconium or organotitanium compound of the formula (RO)_4-nMX_n where R and X are as defined above and M is Ti or Zr; and optionally, (4) an organic solvent.

The invention relates to a preparation method of a catalyst component for ethylene polymerization or copolymerization and a catalyst thereof. The method comprises the following steps: (1) at a temperature of 50-90DEG, dissolving magnesium halide in a solvent system containing an organic epoxy compound and an organic phosphorus compound to form a uniform solution; adding an organic alcohol compound during or after the solution formation and leaving them to react for certain time so as to obtain a reaction solution; (2) in the presence of an organic titanium compound and at a temperature of -30DEG C-0DEG C, subjecting the solution and a titanium compound to a contact reaction, or adding the organic titanium compound after the contact reaction of the solution obtained in step (1) and the titanium compound, and raising the temperature of the mixture slowly to 50-120DEG C, leaving solids to precipitate gradually and form particles, after certain period of reaction, removing the unreacted material and the solvent, and conducting washing with an inert diluent so as to obtain a solid component; and (3) suspending the solid component in certain amount of the inert diluent, performing a contact reaction with an organic aluminium compound under a temperature of 0DEG C-50DEG C, and after certain reaction time, removing the inert diluent, thus obtaining the catalyst component. The catalyst provided in the invention has high catalytic activity and good hydrogen response.

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed. Additionally, the catalyst composition is catalytically active towards the formation of acrylic acid from methylene diacetate and methacrylic acid from methylene dipropionate; both reactions are carried out with high space time yields.

A silicone-rubber composition for coating textile fabrics characterized in that the silicone-rubber composition is a solventless hydrosilylation reaction-curable composition, has a viscosity at 25° C. in the range of 100 to 500 Pa·s, and contains an alkoxysilane that contains a methacrylic group or an acrylic group and a zirconium chelate compound, but does not contain an organic titanium compound. And a textile fabric coated with the silicone-rubber composition for coating textile fabrics.

This room-temperature-curable polyorganosiloxane composition contains: (A) 100 parts by mass of polyorganosiloxane consisting of: (A1) 10 to 80 parts by mass of a both ends alkoxysilyl group-terminated polyorganosiloxane and (A2) 90 to 20 parts by mass of a partial hydrolysis condensate (the number of Si atoms is 10 to 200) of a silane compound expressed by a general formula: R⁴_bSi(OR)_4-b; (B) 0.1 to 15 parts by mass of a silane compound or a partial hydrolysis condensate thereof (the number of Si atoms is 1 or more and less than 10) as a cross-linking agent; and (C) 0.1 to 15 parts by mass of an organic titanium compound as a curing catalyst. It has low viscosity and good coatability without a solvent, and forms a cured coating film excellent in scratch resistance.

The invention relates to a catalyst composition comprising a mixed oxide of vanadium, titanium, and phosphorus modified with alkali metal. The titanium component is derived from a water-soluble, redox-active organo-titanium compound. The catalyst composition is highly effective at facilitating the vapor-phase condensation of formaldehyde with acetic acid to generate acrylic acid, particularly using an industrially relevant aqueous liquid feed.

The present invention is drawn to adhesion promoters comprising an organotitanium compound and a polyamide, for use in solvent-based liquid inks and coatings for flexible packaging, including non-direct food packaging, uses of such adhesion promoters, methods of using such adhesion promoters, inks and coating comprising such adhesion promoters and articles printed with the inks and coatings comprising such adhesion promoters, for example, a laminated printed article (20) comprising a printed image (1) on a substrate (2) and superimposed with an overlay (3) wherein the printed image (1) is prepared from inks or coatings comprising the adhesion promoters.

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.

The invention relates to a preparation method of titanium dioxide-zirconium oxide composite fibers, which comprises the following steps: dissolving polyacetylacetonatozirconium in an alcohol solvent, adding 95-5 mol% of zirconium oxide and 5-95 mol% of titanium dioxide into an organic titanium compound, and concentrating at 32-45 DEG C under reduced pressure until the solution viscosity reaches 10-50 Pa.s, thereby obtaining a spinning solution; and carrying out centrifuging spinning to obtain titanium dioxide-zirconium oxide composite precursor gel fibers, and carrying out high-heat treatment to obtain the high-quality titanium dioxide-zirconium oxide composite fibers. The titanium dioxide-zirconium oxide fibers can be reprocessed into fiber cloth, paper or any other shape; and on the premise of keeping the catalytic activity, the specific area can be fully utilized, and the photocatalysis effect is good.

The invention relates to a catalyst for producing polytrimethylene terephthalate in order to mainly solve the problem of deficiency of catalysts for producing polytrimethylene terephthalate with lowcontent of cyclic dimer in the prior art. Reactants containing a titanium compound, straight-chain diol, hydroxycarboxylic acid and a metal organic salt are used in the invention, wherein the metal element of the metal organic salt is at least one metal element selected from magnesium, aluminum, zinc and zirconium. A preparation method of the catalyst comprises the following steps: reacting the organic titanium compound with the saturated straight-chain diol and hydroxycarboxylic acid at 10-150 DEG C for 0.1-24 h, adding the metal organic salt to the obtained product, carrying out a reaction at 10-150 DEG C for 0.1-24 h, and removing low-carbon alcohol and/or water in the obtained system to obtain the catalyst for producing polytrimethylene terephthalate The method well solves the problem,and can be used in the industrial production of polytrimethylene terephthalate with low content of the cyclic dimer.

The invention relates to the technical field of catalysts for biodegradable polyester and discloses a biodegradable polyester composite catalyst, as well as a preparation method and a using method thereof. The biodegradable polyester composite catalyst comprises the following raw materials in parts by weight: 50-98 parts of organic titanium compound, 1-30 parts of organic silicon compound and 0-10 parts of cocatalyst, and the biodegradable polyester composite catalyst is obtained through the following method: firstly stirring and uniformly mixing the organic titanium compound in the required quantity with the organic silicon compound in the required quantity, and then continuously stirring and uniformly mixing the cocatalyst in the required quality with the organic titanium compound in the required quantity and the organic silicon compound in the required quantity to get the biodegradable polyester composite catalyst. The biodegradable polyester composite catalyst disclosed by the invention has the characteristics of simple preparation process, simplicity and convenience in operation, lower preparation cost and easiness in industrial production, and by adopting the biodegradable polyester composite catalyst obtained in the invention, the reaction time is shortened, and the polyester with good color phase and high molecular weight can be prepared.