31 results about "Boroxine" patented technology

A packaged solid state device having a package, a chip, and an encapsulate having an epoxy resin, a boron containing catalyst that is essentially free of halogen. A LED device having a package, a LED chip, a encapsulate having a cycloaliphatic epoxy resin and a boroxine catalyst essentially free of halogen. A method of encapsulating a solid state device whereby a solid state device is placed into a package, and an encapsulant comprising an epoxy resin, and a boron containing catalyst that is essentially free of halogen, are provided.

The present invention provides a high capacity lithium secondary cell in which the decrease in capacity associated with the charge and discharge cycle is small, and a method for manufacturing the lithium secondary cell. This lithium secondary cell is characterized in being provided with a positive electrode containing a lithium-transition metal composite oxide for which lithium ions can be reversibly stored and released, a negative electrode, and a non-aqueous electrolyte; the non-aqueous electrolyte containing a boroxine compound represented by the general formula (RO)3(BO)3 (where each R independently represents a C2-6 organic group); and the value of the ratio of the number of moles of the boroxine compound and the number of moles of the transition metal atoms in the lithium-transitionmetal composite oxide being 5.7 * 10<-3> or less. This method for manufacturing a lithium secondary cell is characterized in that the boroxine compound is added to the non-aqueous electrolyte so thatthe ratio value of the mol number of the boroxine compound and the mol number of the transition metal atoms in the lithium-transition metal composite oxide is 5.7 * 10<-3> or less.

The invention relates to the field of electrochemistry, in particular to a lithium ion battery. The lithium ion battery comprises a positive pole piece, a negative pole piece, an isolating membrane and electrolyte, wherein the positive pole piece comprises a positive current collector and a cathode active material layer; the cathode active material layer comprises a cathode active material and a cathode additive; the cathode additive is selected from a lithium phosphate salt compound, the electrolyte comprises an electrolyte and a solvent, the electrolyte further comprises an acid removing agent and a film forming additive, the acid removing agent is selected from a cyclic anhydride compound, and the film forming additive is selected from a boroxane compound. According to the invention, the cathode additive is introduced into the positive electrode plate, the lithium salt can be stabilized by introducing the acid removing agent and the film forming additive into the electrolyte of thebattery, so that the lithium salt is prevented from being decomposed to generate HF to accelerate dissolution of positive manganese, HF in the electrolyte can be removed, and the cycle performance and / or storage performance of the battery cell are effectively improved.

The present invention relates to a method for preparing a four-coordinated organic boron compound, and more specifically, to a method for preparing various and widespread four-coordinated organic boron compounds by directly using an aryl, heteroaryl, or vinyl-functional boronic acid, boroxine, or borate compound as a starting material and adding the compound to any bidentate N,O-ligand, O,O-ligand, or N,N-ligand.

An ionic conductor according to the present invention includes an electrolyte salt for ionic conduction, an ionically conducting molecule including a molecular chain which provides an ion conducting pathway and a boroxine ring bonded to the molecular chain and trapping anions resulting from the electrolyte salt, and a structural member for dispersion and immobilization of the ionically conducting molecule and the electrolyte salt therein. The structural material gives the ionic conductor mechanical strength, the ionically conducting molecule provides an ion conducting pathway, and the electrolyte salt gives it ionic conductivity.

The invention provides a boron-doped carbon material, namely a boron-doped carbon nonmetallic oxygen reduction catalyst and a preparation method thereof, and belongs to the scientific and technical field of fuel batteries. The preparation method includes the following steps that firstly, polymer (PTPB) of triphenyl boroxine (TPB) is synthesized by the adoption of Friedel-Crafts reaction; secondly, the PTPB is subjected to thermal treatment, and the boron-doped carbon nonmetallic oxygen reduction catalyst is obtained. The nonmetallic oxygen reduction catalyst is low in cost, simple in preparation technology and high in activity and stability.

The invention discloses a low-impedance long-cycle-life lithium ion battery electrolyte and a preparation method thereof. A boroxin compound (namely an additive X) is added into the electrolyte, so that the impedance of a battery can be reduced, and the power performance of the battery can be improved; boron atoms in the compound can also be used as negative ion acceptors, hydrofluoric acid is captured, and the hydrofluoric acid generated by a lithium salt and other additives is adsorbed, so that the hydrofluoric acid is prevented from attacking a positive electrode CEI film, the cycling performance of the battery is improved, the capacity retention rate is improved, and meanwhile, the dissociation degree of the lithium salt and the migration number of lithium ions are improved; and moreover, the electrolyte is simple and easy to prepare.

The instant invention relates to boroxine derived compounds, for example tripropargylboroxine, the preparation of said compounds and the use as flame retardant in polymeric resins, in particular in thermosetting polymeric resins.

The invention relates to the field of chemistry and chemical engineering, and provides a cheap and efficient borosiloxane intermediate for the preparation of high-performance boron-containing polysiloxane. Under gas protection, drop the mixture of hydrocarbyl boronic acid and organic solvent A into dihydrocarbyl dichlorosilane, stir and react for 3h~8h at a temperature of -20°C~80°C, then add the mixture of organic solvent B and metal oxide , after reacting for 6h~18h, filter, wash with water, evaporate organic solvent A and organic solvent B to obtain mixed borosiloxane. The invention has the advantages of easy-to-obtain raw materials and low cost. The compound can be used to synthesize boron-containing polysiloxanes such as borosilicate rubber, heat-resistant adhesives and heat-resistant coatings, and can be widely used in aerospace, electronics, chemical industry, Machinery and other industries.

The invention discloses a boron-nitrogen structured multi-aromatic-ring flame-retardant epoxy monomer, which has the following structure: B and N flame-retardant elements are introduced into the epoxystructure so that the prepared epoxy resin has excellent flame retardancy, and boroxine and multi-benzene-ring structures endows the epoxy resin with excellent thermal stability and mechanical properties. Through detection, the limit oxygen index of the epoxy resin can reach 28.3% at most, and the vertical combustion grade reaches V-1 grade. The invention discloses a preparation method of the epoxy monomer.

The invention relates to the field of electrochemistry, in particular to a lithium ion battery. The invention provides a lithium ion battery, comprising a positive pole piece, a negative pole piece, a separator and an electrolyte, the positive pole piece comprises a positive current collector and a positive active material layer, and the positive active material layer comprises a positive active material and Positive electrode additive, the positive electrode additive is selected from lithium phosphate compounds, the electrolyte includes electrolyte and solvent, the electrolyte also includes acid scavenger and film-forming additive, and the acid scavenger is selected from cyclic acid anhydride compounds , the film-forming additive is selected from boroxine compounds. The inventors of the present invention can stabilize the lithium salt by introducing positive electrode additives into the positive electrode sheet, and further introduce acid scavenger and film-forming additives into the electrolyte of the battery, thereby avoiding the decomposition of lithium salts to generate HF and accelerating the dissolution of positive manganese , and can remove HF in the electrolyte, effectively improving the cycle performance and / or storage performance of the battery.

The invention discloses self-repairing polyurethane based on boroxine and a preparation method of the self-repairing polyurethane, belonging to the technical field of material science. The preparation method comprises the following steps: firstly, preparing an isocyanate-terminated polyurethane prepolymer, and then subjecting the isocyanate-terminated polyurethane prepolymer to reacting with boroxine having different terminal groups under different conditions to prepare the self-repairing polyurethane based on the boroxine. According to the invention, the boroxine with a three-foot structure and dynamic reversible performance is introduced into a polyurethane chain as a cross-linking agent, so the cross-linking density of polyurethane is improved, and the self-repairing polyurethane with more excellent mechanical performance is prepared; and through combination with the advantages of designability of polyurethane and adjustability of soft and hard segments of polyurethane, the preparation route of the method is simple, the complexity of the system in design and processing is reduced, and an effective way is expected to be provided for solving contradiction between high mechanical strength and good repairing performance of a polyurethane material.

A process for production of a borohydride compound M(BH4)y. The process has three steps. The first step combines a compound of formula (R1O)yM with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlH3OR1)y, wherein R1 is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH3OR1)y with a borate, boroxine or borazine compound to produce M(BH4)y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH4)y from the byproduct mixture.

A process for production of a borohydride compound M(BH4)y. The process has three steps. The first step combines a compound of formula (R1O)yM with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlH3OR1)y, wherein R1 is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH3OR1)y with a borate, boroxine or borazine compound to produce M(BH4)y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH4)y from the byproduct mixture.

The invention discloses double-silver low-emissivity coated glass and a preparation method thereof. The silver nanowires are used as the material of the silver functional layer to form a network structure, so that the infrared radiation loss is effectively increased, and the infrared radiation resistance of the glass is improved; acetone doping and sulfuric acid post-treatment are utilized to increase the conductivity of the conductive adhesive layer and increase dielectric loss radiation; by utilizing an electronic channel provided by the conductive adhesive layer and a three-dimensional structure of the middle dielectric layer, the radiation absorption loss and reflection loss of the glass are synergistically increased; nano-zinc oxide is uniformly distributed by utilizing the dispersitypromoting property of complex protein acid salt in the intermediate dielectric layer so that the light transmittance is improved, and sodium ions are inhibited from diffusing into the film layer in the toughening process; the damage to the surface of the glass is reduced by utilizing the super-hydrophobicity and self-repairability of the protective layer, namely, the N-boroxane-PDMS; by utilizinga three-dimensional structure formed in multiple layers, the toughness of the surface of the glass is effectively improved, and the impact strength is improved.

The present invention relates to medicinal composition for boron neutron catching treatment, and is a kind medicinal composition for catching boron neutron to treat liver cancer. The medicinal composition includes triphenyl boroxin as the boron source for boron neutron catching treatment and pharmaceutically acceptable carrier, such as iodized opium poppy seed oil.

A process for preparing halogenated azaindole compounds makes use of stable reagents including a brominating reagent, a boroxine and a sulfonic anhydride to enhance the selectivity and yield of the final product. In addition, the process is associated with various other advantages, including the ability to recycle reagents, cost reduction, and improved manufacturability.

The invention discloses a quasi-solid electrolyte for a dye-sensitized solar cell. The quasi-solid electrolyte comprises the following components in parts by weight: 20-30 parts of epoxy boroxine organic ions; 15 to 20 parts of 2-(dimethylamino) acetonitrile iodomethane; 15 to 20 parts of quinoline iodoethane; 5-10 parts of elemental iodine; 5-10 parts of an additive; and 10 to 15 parts of 2, 6-deoxy-6-iodine-1, 2: 3, 4-di-o-isopropylidene-alpha-d-galactopyranoside ionizing modified fullerene. The invention also discloses a preparation method of the quasi-solid electrolyte for the dye-sensitized solar cell and a dye-sensitized solar cell adopting the electrolyte. The quasi-solid electrolyte for the dye-sensitized solar cell has the advantages of higher conductivity, better stability and easiness in package, and is more beneficial to the preparation of a dye-sensitized solar cell with high photoelectric conversion efficiency and a long cycle life.

A method for producing a biaryl compound, comprising reacting an aromatic organic compound with at least one compound selected from the group consisting of aromatic organoboron compounds and boroxine compounds, in the presence of a zero-valent nickel catalyst, phosphine ligand and base.

The invention discloses a coating for the surface of a magnetic roller of a magnetic separator, and the coating is prepared from the following raw materials in parts by weight: 30-40 parts of methacrylate-terminated hyperbranched polythionocarbamate, 2-4 parts of allyl phenoxyacetate, 3-6 parts of N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 3-6 parts of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, the invention relates to a graphene-coated nano aluminum powder coating which is prepared from the following components in parts by weight: 1-2 parts of 2, 6-trivinyl boroxane, 5-8 parts of vinyl-terminated fluorosilicone oil, 5-10 parts of graphene-coated nano aluminum powder, 2-4 parts of a coupling agent, 0.5-0.8 part of a defoaming agent, 0.3-0.5 part of a flatting agent, 1-2 parts of a photoinitiator, 15-20 parts of filler and 20-30 parts of a solvent. The invention further discloses a preparation method of the coating for the surface of the magnetic roller of the magnetic separator. The coating for the surface of the magnetic roller of the magnetic separator, disclosed by the invention, is sufficient in adhesion performance, excellent in aging resistance and wear resistance, remarkable in protection effect on the magnetic roller of the magnetic separator and long in service life.

The present invention relates to boroxine-derived compounds, such as tripropargylboroxines, their preparation, and their use as flame retardants in polymer resins, especially thermosetting polymer resins.

The present invention relates to medicinal composition for boron neutron catching treatment, and is a kind medicinal composition for catching boron neutron to treat liver cancer. The medicinal composition includes triphenyl boroxin as the boron source for boron neutron catching treatment and pharmaceutically acceptable carrier, such as iodized opium poppy seed oil.

The present invention relates to a method for preparing a four-coordinated organic boron compound, and more specifically, to a method for preparing various and widespread four-coordinated organic boron compounds by directly using an aryl, heteroaryl, or vinyl-functional boronic acid, boroxine, or borate compound as a starting material and adding the compound to any bidentate N,O-ligand, O,O-ligand, or N,N-ligand.

A lubricant composition including a boroxine compound is disclosed. An additive package including the boroxine compound is also disclosed. The lubricant composition and the additive package may additionally include an amine compound. The boroxine compound of the lubricant composition acts to improve compatibility of the lubricant composition with a fluoropolymer seal.

The invention discloses a flame-retardant antistatic TPU composite material, and belongs to the field of plastic processing. Expandable graphene oxide, ammonium polyphosphate, triphenyl boroxane, TPU (thermoplastic polyurethane) particles and DMF (dimethyl formamide) are used as raw materials, and melt blending and extrusion molding methods are adopted for preparation. The obtained flame-retardant antistatic TPU composite material can realize rapid surface carbon formation during combustion, can realize rapid self-extinguishing after a fire source is removed, has a strong smoke suppression effect, and also has good antistatic performance.

The invention discloses a boroxane-based self-healing polyurethane and a preparation method thereof, belonging to the technical field of material science. Firstly, the polyurethane prepolymer with terminal isocyanate group was prepared, and then reacted with Boroxine with different terminal groups under different conditions to prepare self-healing polyurethane based on boroxane. Boroxine, which has a tripod structure and dynamic reversible properties, is introduced into the polyurethane chain as a crosslinking agent to increase the crosslinking density of polyurethane and obtain self-healing polyurethane with better mechanical properties. Combining the advantages of the designability of polyurethane and the controllability of soft and hard segments, the preparation route of the present invention is simple, which reduces the complexity of system design and processing, and is expected to solve the problem of high mechanical strength and good repair performance of polyurethane materials. The contradiction between provides an effective way.

The invention provides a boron-doped carbon material, namely a boron-doped carbon nonmetallic oxygen reduction catalyst and a preparation method thereof, and belongs to the scientific and technical field of fuel batteries. The preparation method includes the following steps that firstly, polymer (PTPB) of triphenyl boroxine (TPB) is synthesized by the adoption of Friedel-Crafts reaction; secondly, the PTPB is subjected to thermal treatment, and the boron-doped carbon nonmetallic oxygen reduction catalyst is obtained. The nonmetallic oxygen reduction catalyst is low in cost, simple in preparation technology and high in activity and stability.