66 results about "5-Aminotetrazole" patented technology

A CMP composition containing 5-aminotetrazole, e.g., in combination with oxidizing agent, chelating agent, abrasive and solvent and a method of use. Such CMP composition may be diluted during the CMP polish to minimize the occurrence of dishing or other adverse planarization deficiencies in the polished copper, even in the presence of substantial levels of copper ions in the CMP composition and at the copper / CMP composition interface during CMP processing.

Ammonium perchlorate-containing gas generant compositions which, upon combustion, produce or result in an improved effluent and related methods for generating an inflation gas for use in an inflatable restraint system are provided. Such ammonium perchlorate-containing gas generant compositions include ammonium perchlorate present with a mean particle size in excess of 100 microns. Such ammonium perchlorate-containing gas generant compositions also include or contain a chlorine scavenger present in an amount effective to result in a gaseous effluent that is substantially free of hydrogen chloride when the gas generant is combusted, wherein at least about 98 weight percent of the chlorine scavenger is a copper-containing compound. Suitable copper-containing chlorine scavenger compounds include basic copper nitrate, cupric oxide, copper diammine dinitrate-ammonium nitrate mixture wherein ammonium nitrate is present in the mixture in a range of about 3 to about 90 weight percent, copper diammine bitetrazole, a copper-nitrate complex resulting from reaction of 5-aminotetrazole with basic copper nitrate and combinations thereof.

The present invention is an electrically controlled propellant comprising a binder, an oxidizer, and a cross-linking agent. The boric acid (the cross-linking agent) has been found to function as a cross-linking agent for the high molecular binder used to make the propellant, thereby improving the composition's ability to withstand combustion without melting. The present invention also may include 5-aminotetrazole (5-ATZ) as a stability-enhancing additive. The binder of the present invention may include polyvinylalcohol (PVA) and / or the co-polymer of polyvinylalcohol / polyvinylamine nitrate (PVA / PVAN).

A method of manufacture of the primary explosive material copper(I) 5-nitrotetazolate (DBX-1) by a synthesis starting with 5-aminotetrazolate (5-AT); wherein, the synthesis provides intermediates acid copper salt of 5-NT and sodium 5-nitrotetrazolate (NaNT) sodium 5-nitrotetrazolate (NaNT)—that are both, free of any 5-aminotetrazolate (5-AT) starting material—such that the subsequent production of the DBX-1 is not inhibited. Further, this method utilizes an internal filter within the reactor—to minimize handling of explosively dangerous intermediates.

A novel compound, tris (5-amino tetrazolo) triazine is used for example, as a gas generating fuel. A method of making the compound is also provided. A gas generating composition, containing the novel compound as a fuel, and an oxidizer is also provided. The novel compound may be contained within a gas generant composition 12, within a gas generator 10. The gas generator 10 may be contained within a gas generating system 200 such as an airbag inflator 10 or seat belt assembly 150, or more broadly within a vehicle occupant protection system 180.

The invention relates to a palygorskite clay based multifunctional assistant of macromolecular materials and a preparation method for the palygorskite clay based multifunctional assistant. The methodcomprises the steps: crushing palygorskite clay, adding a couplant, carrying out stirring treatment at normal temperature so as to obtain surface modified palygorskite clay, carrying out drying, and re-crushing the palygorskite clay; then, dispersing the surface modified palygorskite clay into ethyl acetate, sequentially adding a compound 1-propylphosphoric anhydride and a compound 5-aminotetrazole, carrying out ultrasonic treatment, and then, carrying out stirring for a period of time; and finally, carrying out air flow drying, recovering the ethyl acetate solvent, and grinding a dried powderproduct, thereby obtaining the palygorskite clay based multifunctional macromolecular assistant. Shown by experiments, the palygorskite clay based multifunctional assistant prepared by the method hasexcellent comprehensive properties, the thermal stability, cross-linking degree, flame retardance, tensile strength and impact strength of the materials can be comprehensively improved, and the smokedensity and combustion toxicity can be lowered, so that the multifunctional assistant of the macromolecular materials is relatively ideal and has very good prospects in the field modification of macromolecular composite materials.

The invention discloses a preparation method of zinc 5, 5'-azotetrazole, a green primary explosive. The method comprises: taking 5-aminotetrazole as the starting material, which is oxidized into sodium 5, 5'-azotetrazole by an alkaline oxidation method, then adopting pure water as the base solution, using a metering pump to control the feeding speed of a zinc acetate solution and a sodium 5, 5'-azotetrazole solution, and adding them dropwisely into the base solution for a combination reaction, then carrying out heat preservation, cooling, pumping filtration, washing, dehydration, and drying, thus obtaining a finished product of zinc 5, 5'-azotetrazole. The zinc 5, 5'-azotetrazole of the invention has the advantages of simple and safe synthesis method, low toxicity or no toxicity raw materials, low cost, no black residue after explosive decomposition, and small residue amount, generation of nitrogen as general gas product, no environmental pollution, as well as good explosion performance, thus being a green primary explosive.

A gas generator 10 includes an auto-ignition / booster composition 212 that contains a metal chlorate such as potassium chlorate as an oxidizer, a carboxylic acid such as DL-tartaric acid as a primary fuel, a secondary oxidizer such as strontium nitrate, and if desired, a secondary fuel such as 5-aminotetrazole. The auto-ignition / booster composition 212 and a separate provision of ammonium nitrate or phase stabilized ammonium nitrate 228 are provided within a single combustion / decomposition chamber 222 for the production of gas, upon actuation of the gas generator 10. Vehicle occupant protection systems 180, containing the gas generator 10, are also provided.

Described are methods for preparing salts of 5-nitrotetrazolate that include reacting aqueous solutions of 5-aminotetrazole, an acid, and sodium nitrite in a continuous flow system at an ambient temperature.

Gas generating compositions having a fuel preferably comprising a mixture of 5-aminotetrazole (5-AT), azodicarbonamide (ADCA), an oxidizer, and a superfine metal powder burn rate enhancer such as nano-aluminum, for use in automotive seatbelt pretensioners and other suitable applications requiring high impetus, high rate of gas generation. Also, methods of making these compositions, and devices incorporating them such as seatbelt pretensioners.

The invention discloses a ferrocene high-nitrogen energetic eutectic. The ferrocene high-nitrogen energetic eutectic is an eutectic formed by using N,N-dimethylaminomethylferrocene and an energetic compound, wherein the energetic compound is tetrazole, picric acid, trinitrotoluene or 5-aminotetrazole. The ferrocene high-nitrogen energetic eutectic is synthesized through eutectic formation of the energetic compound and a ferrocene burning rate catalyst N,N-dimethylaminomethylferrocene through using an eutectic technology, so a synthetic method of the eutectic has the advantages of simplicity and low cost; and the synthesized ferrocene high-nitrogen energetic eutectic has the advantages of non-volatility and good heat stability under natural conditions, high formation heat and combustion heat, great reduction of the migration and the volatility of the catalyst, and improvement of the energy level of a propellant during decomposition due to energy containing of the eutectic.

The invention discloses an organic energetic potassium salt and a preparation method thereof, belonging to the technical field of energetic materials. Its molecular structural formula is as follows: it includes the following steps: adding potassium hydroxide to water, then adding 5-aminotetrazole, raising the temperature, adding potassium permanganate, and raising the temperature to boiling after the addition is completed. After the reaction, hot filter, wash the filter cake with hot water, combine the filtrate and washing liquid, concentrate under reduced pressure, and freeze to precipitate crystals to obtain potassium salt of azotetrazole. The potassium azotetrazole synthesized by the invention has a good flame-extinguishing effect and can be used to suppress the muzzle flame of barrel weapons.