4061results about How to "Avoid decomposition" patented technology

The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole transporting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces a driving voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime.

The invention relates to a high-capacity lithium-ion electrolyte, a battery and a preparation method of a battery, in particular to the high-capacity lithium-ion electrolyte and the battery using the high-capacity lithium-ion electrolyte and the preparation method of the battery. The electrolyte disclosed by the invention comprises lithium salt and non-aqueous organic solvent, and also consists of the following components in weight percent in terms of the total weight of the electrolyte: 0.5-7% of film-forming additive, 0-15% of flame-retardant additive, 2-10% of antiovefill additive, 0.01-2% of stabilizer and 0.01-1% of wetting agent; the electrolyte can enable the anode with high Ni content to work stably, and reduce the battery cost; the high-capacity lithium-ion battery can perform high ratio capacity and excellent safety and high temperature property and cyclic life fully due to the addition and synergetic functions of various functional additives.

Biocompatible polymeric materials capable of providing in situ release of nitric oxide (NO) included diazeniumdiolated fumed silica as a filler in a multilayer polymer structure to release NO upon contact with water (blood). The blood-contacting polymer surface is preferably multi-layered so that the NO-releasing layer, containing the diazeniumdiolated fumed silica, is shielded from blood contact by one or more top (or base) coats. When in contact with blood, the NO released at the surface of the polymer prevents platelet activation and adhesion to the surface, thereby reducing platelet consumption, risk of thrombus formation and other clinical complications associated with interactions between blood and foreign materials.

Highly planar non-polar a-plane GaN films are grown by hydride vapor phase epitaxy (HVPE). The resulting films are suitable for subsequent device regrowth by a variety of growth techniques

A stable, nonaqueous liquid tooth whitening composition comprised of an anhydrous peroxide compound dispersed in an orally acceptable mixture of an anhydrous hydrophilic polymer and an adhesion enhancer which composition when applied topically to tooth surfaces forms an adherent layer containing the peroxide compound which peroxide compound is thereafter is released from the layer to effect tooth whitening.

A gas generating composition having an improved thermal stability of a fuel is obtained.A gas generating compostion comprising a gas generating agent containing a non-sodium azide compound fuel and an oxidizing agent, and an adsorbent. Since substances accelerating decomposition of a fuel, such as radicals generating by decomposition of the fuel are adsorbed and kept on the adsorbent, further decomposition of the fuel is inhabited, so that the thermal stability is increased.

An anode and a secondary battery capable of improving the charge and discharge efficiency are provided. The anode includes an anode current collector, and an anode active material layer provided on the anode current collector. The anode active material layer has a plurality of anode active material particles containing at least one of a simple substance of silicon, a compound of silicon, a simple substance of tin and a compound of tin, and has a coat containing an oxo acid salt in at least part of the surface of the anode active material particles.

A stable, nonaqueous liquid tooth whitening composition comprised of an anhydrous peroxide compound dispersed in an orally acceptable hydrophobic organic material such as a silicone based pressure sensitive polymer which composition when applied topically to tooth surfaces forms an adherent layer containing the peroxide compound which peroxide compound is thereafter is released from the layer to effect tooth whitening.

The invention relates to a high glowing filament environmental-friendly inflaming retarding reinforced polybutylece terephthalate (PBT)/acrylonitrile butadiene styrene (ABS) alloy material. The material comprises the following components in percentage by weight: 22.5-41% of PBT, 22.5-41% of ABS, 6-20% of complexing inflaming retardant, 3-15% of antimonous oxide, 20-30% of glass fiber, 2-10% of flexibilizer, 0.1-1% of antioxidant and 0.1-1% of lubrication dispersing agent. The preparation method comprises the following steps: putting raw materials weighed based on the weight proportion into a high mixer, mixing for 2-5 minutes, and then discharging; and then extruding and granulating by using an extruding machine at the processing temperature of 230-240 DEG C at the screw rotating speed of 30-40Hz. Compared with the alloy material prepared by the prior art, the high glowing filament environment-friendly inflaming retarding reinforced PBT/ABS alloy material has the advantages of high glowing filament temperature, environmental friendliness, balanced comprehensive performance and the like.

The invention discloses an electrolyte additive and an application thereof in a lithium ion battery. The electrolyte additive comprises a polynitrile-based compound and a compound comprising a sulfur bond and an oxygen bond. When the electrolyte additive is applied to the lithium ion battery, good cycle life, good low-temperature discharging property and good high-temperature storage property of the lithium ion battery under the high voltage still can be maintained.

Nonwoven wet-lay flame barrier of the invention comprises a blend of water dispersible fibers, that are inherently fire resistant and nonshrinking to direct flame, along with water dispersible fibers extruded from polymers made with halogenated monomers and optionally including fiberglass and wood pulp, being together thermally bonded with a binder resin in a wet-lay manufacturing process to provide a relatively thin, but dense, durable flame barrier with excellent tensile, and durability properties in the end use application. The wet-lay flame barrier of this invention also allows for the manufacture of open flame resistant composite articles, while also permitting the continued use of conventional non-flame retardant dress cover fabrics, conventional non-flame retardant fiberfills and conventional non-flame retardant polyurethane foams.

The invention relates to biodegradable vascular supports consisting of an inner biodegradable metal skeleton and an outer polymeric coating. The biodegradable coating preferably consists of biodegradable polymers and can also contain at least one pharmacologically active substance such as an anti-inflammatory, cytostatic, cytotoxic, anti-proliferative, anti-microtubule, anti-angiogenic, anti-restenotic (anti-restenosis), anti-fungicidal, anti-neoplastic, anti-migrative, athrombogenic and/or antithrombogenic active ingredient.

Method for producing composite wafers with thin high-quality semiconductor films atomically attached to synthetic diamond wafers is disclosed. Synthetic diamond substrates are created by depositing synthetic diamond onto a nucleating layer deposited on bulk semiconductor wafer which has been prepared to allow separation of the thin semiconductor film from the remaining bulk semiconductor wafer. The remaining semiconductor wafer is available for reuse. The synthetic diamond substrate serves as heat spreader and a mechanical substrate.

Solutions are prepared by dissolving N-(n-butyl)-thiophosphoric triamide (NBPT) in one or more N-substituted morpholines and mixtures thereof. The solutions may be used in urea fertilizers to reduce nitrogen volatilization, or to reduce the odor of animal waste or urine. Methods of preparing urea fertilizers and the resultant products are also described.

The invention provides a granular pesticide fertilizer, and a preparation method and application thereof. The granular pesticide fertilizer comprises the following components expressed in mass percent: on the basis that the total mass of the granular pesticide fertilizer is 100%, 0.001 to 20% of a pesticide active component, 70 to 99% of a granular fertilizer carrier, 0.05 to 9% of an organic solvent, 0.05 to 0.5% of a surfactant and 0.05 to 0.5% of a coating agent. According to embodiments in the invention, the pesticide active component and the granular fertilizer carrier in the granular pesticide fertilizer are reasonably combined, which allows the problem of damage by diseases and insects to soil in agricultural production to be effectively overcome and enables soil fertility to be improved and labor and time to be saved. The granular pesticide fertilizer is produced by using a normal temperature spraying adsorption process and a cladding process, so the preparation method for the granular pesticide fertilizer has the advantages of a simple process, low energy consumption, reduction in production cost, easiness in controlling and operating and suitability for industrial production.

A lithium secondary battery which has excellent characteristics such as energy density and electromotive force and is excellent in cycle life and storage stability is provided. The secondary battery comprises a positive electrode, a negative electrode, and an electrolyte solution comprising an aprotic solvent having at least an electrolyte dissolved therein, wherein the positive electrode comprises a lithium-manganese composite oxide having a spinel structure as a positive electrode active material, and the electrolyte solution comprises a compound represented by the general formula (1).

A non-aqueous electrolyte having improved lithium ion conductivity and excellent voltage resistance is provided. A lithium rechargeable battery and a rechargeable battery system including the inventive non-aqueous electrolyte is also provided. The non-aqueous electrolyte includes at least one aromatic compound which is polymerizable at a working electrode potential of 4.2 to 4.5 V when a lithium metal is used as a counter electrode and platinum is used as a working electrode.

The invention relates to semi-aromatic high-temperature resistant nylon and its preparation method. The preparation method provided by the invention comprises the following steps of: by weight, adding 75-95 parts of nylon salt, 0.2-0.8 part of an end-capping reagent, 0.1-0.6 part of a catalyst, 0.5-1 part of an antioxidant, 0.1-0.5 part of a lubricant and 30-50 parts of deionized water into a stirred polymerization autoclave, synthesizing a high-temperature resistant nylon prepolymer in a high-pressure stirred tank reactor, and carrying out melting extrusion on the prepolymer through a double screw extruder twice. According to the invention, devolatilization efficiency is raised, tackifying time is shortened, and simultaneously the high-viscosity polymer in the reaction vessel can be smoothly discharged. By different extrusion temperatures, high-temperature degradation of the prepolymer is prevented. Intrinsic viscosity of the high-temperature resistant nylon prepared by the method is higher than that of a polymer prepared by a present method. Therefore, the obtained nylon in the invention has better mechanical properties.

The present invention has an object to provide an external dermatological formulation having satisfactory blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing effect, hair nourishing effect, emusifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and/or transdermal absorption-promoting effect with a satisfactory safety and skin feeling; The object is solved by providing an external dermatological formulation comprising a saccharide derivative of α,α-trehalose and one or more members selected from substances having any one of blood flow-promoting effect, antiinflammatory effect, antibacterial effect, moisturizing effect, whitening effect, UV-absorbing effect, UV-scattering effect, antioxidant effect, hair growing efect, hair nourishing effect, emulsifying effect, astringent effect, wrinkle-reducing effect, cell-activating effect and transdermal absorption-promoting effect.

T provide an N type thermoelectric material having figure of the merit improved to be comparable to or higher than that of P type thermoelectric material, the N type thermoelectric material of the present invention contains at least one kind of Bi and Sb and at least one kind of Te and Se as main components, and contains bromine (Br) and iodine (I) to have carrier in such a concentration that corresponds to the contents of bromine (Br) and iodine (I).

The invention discloses a medlar and red date enzyme and a preparation method thereof, which belong to the technical field of enzyme preparation. Multi-strain composite fungi powder is adopted as a leavening agent; the medlar and the red date are adopted as main raw materials; dietary fiber, pectin hydrolyzate, seasoner extracting liquor, Chinese herbal medicine extracting liquor, enzyme stabilizer and other multifunctional auxiliary raw materials are scientifically compounded and modified; low-temperature processing technology such as ultrasonic cleaning, cryogenic grinding, microwave-assisted high-voltage pulse electric field processing and ultrasonic ripening are mainly adopted in the whole process, so that the natural colors, the flavor, the taste and the content of the active materials of the medlar and the red date are maintained furthest, the biological stability, the non-biological stability and the biological activity of the medlar and red date enzyme are obviously enhanced, the introduction of chemical addition agent is reduced, and the juicing rate of the medlar and the red date as well as the food safety of the enzyme are improved. Finally, the medlar and red date enzyme with high biological activity, strong stability, strong taste, flavor and appetite, long expiration date and edible safety is prepared.

The present invention relates to a sampler for gas hydrates by hole bottom freezing, the sampler comprises a fisher, a wire-line coring mechanism and an outer barrel, and it further comprises a refrigeration portion, a low temperature control portion and a frozen insulation sample portion, which constitute an inner barrel assembly located inside the outer barrel together, wherein a refrigerant in the refrigeration portion is injected into the frozen insulation sample portion under a control of the low temperature control portion, so that a cooling medium in the frozen insulation sample portion is always kept under a predetermined temperature, and a core sample of gas hydrates is frozen at the bottom of a drill hole. The invention also relates to a sampling method using the sampler as mentioned above. In the invention, the temperature of the sample can be decreased by using an external cooling source to suppress hydrate decomposition, the critical decomposition pressure of gas hydrates can be reduced by active decreasing the temperature of the sample, and the stability of gas hydrates is maintained by a passive pressure drop. The method of the present invention need not to keep the pressure of the sample, and is simple to obtain a core sample of gas hydrates with higher fidelity.