13 results about "Organotitanium compound" patented technology

In particular, this invention provides a titanium catalyst solution that can suppress the precipitation of the titanium catalyst without the need for continuous stirring, and that exhibits excellent storage stability and thermal stability. [Solution] A titanium catalyst solution comprising an organic titanium compound, 1,4-butanediol, and water, wherein the water concentration W (mass%) in the solution is 0.030

The invention relates to the technical field of boron carbide ceramics, in particular to boron carbide-titanium diboride composite powder, boron carbide-titanium diboride composite ceramic and a preparation method of the boron carbide-titanium diboride composite powder and the boron carbide-titanium diboride composite ceramic. The method comprises the following steps: uniformly dispersing an organic titanium compound and boron carbide into an organic solvent to obtain boron carbide-organic titanium compound slurry; adding pure water into the boron carbide-organic titanium compound slurry for complete hydrolysis reaction, and then carrying out suction filtration and drying to obtain a boron carbide-titanium dioxide precursor; and carrying out in-situ calcination on the boron carbide-titanium dioxide precursor to obtain the boron carbide-titanium diboride composite powder. According to the invention, the B4C composite powder is prepared by an organic titanium compound hydrolysis method, the powder is subjected to high-temperature calcination and converted into B4C-TiB2 powder, and then the powder is subjected to ball milling dispersion and hot pressed sintering, so that uniform dispersion of TiB2 particles and great improvement of mechanical properties are realized.

The present invention provides an aqueous release coating agent and a laminate using the same, which exhibits excellent adhesion to various substrates when used as a release layer, excellent release properties, excellent release properties after heat treatment, and also excellent slipperiness and transparency. [Solution] An aqueous release coating agent containing an acid-modified polyolefin resin (A), an organotitanium compound (B), and an aqueous medium, wherein the mass ratio of the acid-modified polyolefin resin (A) to titanium is 100 / 0.5 to 100 / 20. Preferably, the chelate-type organotitanium compound is titanium diisopropoxybis(triethanolamine) or titanium diethanolamine. A laminate is obtained by laminating a release layer obtained by removing the aqueous medium from the aqueous release coating agent.

The present invention provides a lithium-ion secondary battery casing material having a protective layer that exhibits electrolyte resistance even during the formation process under relatively low temperature conditions. [Solution] A lithium-ion secondary battery exterior material having a laminated structure comprising a protective layer, a base layer, and a barrier layer in that order, wherein the protective layer contains a polyolefin resin (A) and an organic titanium compound (B), and the titanium content in the protective layer is 0.5 to 20% by mass. The exterior material is formed by applying a coating solution containing a polyolefin resin (A), an organic titanium compound (B), and a liquid medium to the base layer and then drying it.

Provided are an organic titanium compound and curing catalyst capable of quickly curing a room temperature-curable organopolysiloxane composition when added thereto, and improving an adhesiveness of a cured product of such composition, especially an adhesiveness thereof after being dipped in warm water, while maintaining an unimpaired storage stability. The organic titanium compound is a reaction product ofan organooxy group- and chelating ligand-containing organic titanium compound represented by an average composition formula (I)Ti(OR)4-a(X)a wherein R is a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, X is a chelating ligand, a is a number of 0.1 to 3.5; anda fatty acid ester of a polyhydric alcohol.

A rubber-metal laminated gasket material comprising a metal plate, a surface treating agent layer, an adhesive layer, and a rubber layer, the layers being sequentially laminated on the metal plate; wherein the surface treating agent layer is formed by using a surface treating agent comprising an organic titanium compound and titanium coupling agent-treated alumina, wherein the element mass ratio of titanium and aluminum in a surface treating agent film is 5:95 to 60:40. The rubber-metal laminated gasket material is exhibits the following effects. For example, adhesion peeling does not occur in a heat resistance test method in LLC in consideration of the actual use environment of engine cylinder head gaskets, and excellent LLC resistance is exhibited even under conditions of 150° C. for about 300 hours, high temperature conditions.

Provided are an addition-curable liquid silicone rubber composition having exceptional adhesiveness and adhesive durability in a silicone rubber coating layer with respect to an airbag fabric, and an airbag.An addition-curable liquid silicone rubber composition for airbags having, as essential components:(A) an organopolysiloxane having a weight-average degree of polymerization of 100-2,000 and containing two or more silicon-atom-bonded alkenyl groups per molecule;(B) an organohydrogenpolysiloxane containing at least two silicon-atom-bonded hydrogen atoms per molecule;(C) a silica fine powder having a BET specific surface area of 50 m2 / g or higher;(D) a catalyst for a hydrosilylation reaction;(E) an organic compound including at least one functional group selected from alkenyl groups, alkoxysilyl groups, and hydrosilyl groups, and at least one isocyanate group, per molecule; and(F) a condensation catalyst selected from organic titanium compounds, organic zirconium compounds, and organic aluminum compounds.

This disclosure relates to the field of cosmetic excipients technology, specifically to a silica-based composite material and its application in cosmetics. The silica-based composite material is obtained through the following steps: dispersing silica in water, followed by ultrasonic dispersion and surface activation to obtain a pretreated dispersion system; preparing an aqueous solution of sodium stearoyl glutamate, and adding it dropwise under constant temperature stirring to obtain a primary surface-modified silica; then dissolving an organic titanium compound or titanium salt in an alcohol ether organic solvent to prepare a solution, and performing a secondary surface modification on the primary modified silica under nitrogen protection; finally, ball milling the silica and rutile titanium dioxide and sieving to obtain the silica-based composite material.

The application discloses a catalyst system for preparing 1-butene by ethylene dimerization. The catalyst system comprises the following components: a, an organic titanium compound; b, an organic aluminum compound; c, a compound shown in the following formula; the catalyst system has high catalytic activity and can realize high 1-butene selectivity and low PE yield, and can significantly improve device operation; meanwhile, the service life of single batch of catalyst is long, and when applied to actual industrial production, catalyst utilization maximization can be realized by controlling catalyst feed quantity and / or residence time, and economic benefits are improved.

The invention provides a titanium composite catalyst and a preparation method and application thereof.The titanium composite catalyst comprises a modified catalyst solution A and a modified catalyst solution B. The modified catalyst solution A comprises a coordination complex formed by an organic titanium compound and a ligand C, the modified catalyst solution B comprises a coordination complex formed by an organic titanium compound and a ligand D, the ligand C is an alcohol amine compound, and the ligand D is a polyhydroxy alcohol compound. The titanium composite catalyst is used for synthesizing the high-viscosity polyether ester elastomer, a segmented catalysis mode is adopted, the modified catalyst solution A is used for catalyzing the reaction in the esterification stage, and the modified catalyst solution B is used for catalyzing the reaction in the polycondensation stage, so that catalyst hydrolysis is avoided in the esterification stage, and high activity is provided in the polycondensation stage; and finally, synthesizing the high-viscosity polyether ester elastomer within a relatively short synthesis time.

The invention provides a catalyst composition and a preparation method of 1-butene. The catalyst composition comprises an organic titanium compound and an organic aluminum compound, the general formula of the organic titanium compound is Ti (OR1) 2 (OC2H4N (C2H4OH) 2) 2, wherein R1 is alkyl; the molar ratio of the organic titanium compound to the organic aluminum compound is 1: (1-20). On the basis of modification of steric hindrance of an active center of the catalyst and an electronic environment brought by the structure of the organic titanium compound, when the catalyst is subsequently used for preparing 1-butene through ethylene dimerization, the reaction induction period is shorter, and the selectivity of 1-butene is higher. Meanwhile, the cost of the catalyst is lower.

This invention discloses a catalyst composition for the selective dimerization of ethylene, comprising an organotitanium compound, at least one organoaluminum compound, a non-polymeric ether modifier, a water-carrying agent, and water. The water-carrying agent includes one or more of sulfonates or sulfonates, phosphonium salts, alkyl quaternary ammonium salts, polyoxyethylene ethers, and alkylphenols. Using this catalyst composition for ethylene dimerization effectively inhibits polymer formation while maintaining high catalytic activity and butene-1 selectivity, exhibiting rapid initiation, a stable reaction process, and good reproducibility.

A method for preparing titanide zeolites, such as titanide chamazoite-type (CHA) zeolites or titanide AEI zeolites. The method includes (i) forming a reactive gel comprising a precursor zeolite, a structure-directing agent (SDA), NaOH and / or KOH, and a SiO2 source; and (ii) heating the reactive gel. The precursor zeolite comprises a titanium-loaded precursor zeolite, and heating the reactive gel comprises heating to a temperature suitable for converting the titanium-loaded precursor zeolite into titanide zeolite and maintaining this temperature for a suitable duration. The titanium-loaded precursor zeolite can be prepared from organotitanium compounds, such as titanium alkoxides.