641 results about "Diethylene triamine" patented technology

The present invention relates to oxidizing hair colourant compositions comprising selected oxidative hair dyes and diethylene-triamine-penta-(methylenephosphonic acid). The compositions provide improved hair colour tonality, root to tip evenness and reduced wash fade over time.

The invention relates to a solid emulsifier used for oil base drilling fluid, a preparation method and an application of the oil base drilling fluid. The preparation method comprises the following steps: adding diethylenetriamine in organic acidity, adding a catalyst, heating to the temperature of 175-185 DEG C, and reacting for 1-3 hours to obtain an intermediate product which has a code name AMI-1. cooling the reaction temperature to 90-120 DEG C, adding acid anhydrides, continuously reacting for 2-4 hours, cooling to the room temperature, wherein the products is the dark brown solid, using a pulverizer for crushing to obtain the brown-red solid powder which is the emulsifier with code name EmuL-S. The emulsifier has good emulsification effect on the diesel oil, the white oil and a synthesis group, and has strong anti-temperature capability, and is cooperated with organic soil, a filtrate reducer, a wetting agent and a weighting material for constructing a high performance oil base drilling fluid system; because that the emulsifier is the powdery solid, so that the influence due to environment is little, and the storage and transport are convenient.

The invention discloses graphene aerogel and a preparation method thereof. The method comprises the following steps: (1) uniformly mixing graphene oxide dispersion liquid with an amine water-soluble compound to obtain graphene oxide mixed liquid, wherein the amine water-soluble compound is selected from one or more of diethylamine, ethidene diamine, propane diamine, butane diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, allylamine polymer and N,N'-bis(2-aminoethyl)-1,3-propane diamine; (2) irradiating the graphene oxide mixed liquid by high-energy rays under the anaerobic condition to obtain amino-modified graphene aerogel; (3) performing freeze-drying or supercritical CO2 drying to obtain the graphene aerogel. The graphene aerogel adopts a porous and macroporous structure, is relatively uniform in structure, and can be used for adsorbing an organic solvent; moreover, the preparation method is simple and environment-friendly.

The invention discloses a method for preparing quaternary amine salt ion adsorbent by using a plant with high cellulose content. Straw stalks with high cellulose content, epichlorohydrin and tri-ethylamine are taken as raw materials, ethylene diamine, diethylene triamine pentacetic acid (DTPA) or triethylenetetramine, etc are used as crosslinking agent to prepare the adsorbent under the condition of existence of N, N-dimethyl formamide. The method has the advantages of simple process, low cost, economic and practical, reproducible, etc. The adsorbent prepared by the method has the advantages of high liveweight growth rate, low secondary pollution, high stability, sound adsorption effect, wide application scope, etc; and the adsorbent can be extensively applied to the treatment of eutrophication of waters.

Derivatives useful in the protection of living organisms against damage due to free radical reactions derived from methoxypolyethylene glycols (MPEG), which are modified by chemically attaching chelating groups in an amide or amine linkage to the nonmethyl end of the polymer. Such chelating groups include ethylene-diamine tetraacetic acid (EDTA), diethylene triamine pentaacetic acid (DTPA), and ethylene glycol aminoethyl ether tetraacetic acid (EGTA), and pharmacologically acceptable salts or esters thereof.

Flexible epoxy-based adhesive compositions which remain Theologically stable at room temperature in an uncured state comprise: (a) at least one flexible polyepoxide resin having a hardness not exceeding a durometer Shore D reading of 45 when cured with a stoichiometric amount of diethylene triamine ("DETA"); and (b) a substantially stoichiometric amount of at least one latent epoxy resin curing agent. Optionally, the adhesive composition may also incorporate one or more semi-flexible resins. Other optional components include fillers, thixotropic agents, and flexibilizers. The adhesive composition provicdes an epoxy-based adhesive composition that is storable for weeks as a single component mixture at room temperature, curable at temperatures ranging from about 100° C. to 125° C. in less than two hours, and flexible upon curing to temperatures as low as minus 50° C., exhibiting a durometer Shore A of less than about 95.

The invention provides a moisture/water-curable anti-seepage leak-stopping epoxy adhesive which is prepared by complexing epoxy resin, self-toughening phenolic aldehyde amine modified curing agent T31, diluter, mahogany acid, coupling agent, promoter diethylenetriamine, filler cement and auxiliary filler calcium oxide according to a certain mass ratio. After being applied, the anti-seepage leak-stopping epoxy adhesive can be directly cured in water; the bonding strength is improved after curing, and the durability is high; and the adhesive layer ductility is improved without adding other toughener, and better impact ductility is achieved. The steel-steel dry-state adhesive application test on a universal electronic testing machine shows that the shear strength can be up to about 15.0-22.0MPa, the bonding strength is 18.0-21.0MPa after dry-state adhesive application and in-water curing, and the bonding strength is 4.0-7.0MPa after wet-state adhesive application and in-water curing.

The present invention is directed to the use of a combination of a polymeric chelant and coagulant to treat metal containing wastewater. More particularly, the invention is directed at removing copper from CMP wastewater. The composition includes a combination of (a) a polymeric chelant derived from a polyamine selected from the group consisting of diethylenetriamine (DETA), triethylenetetraamine (TETA), tertraethylenepentaamine (TEPA), poly[vinylamine], and branched or linear poly[ethylenimine] (PEI); and (b) a water soluble or dispersible copolymer of a tannin and a cationic monomer selected from the group consisting of methyl chloride or dimethyl sulfate quaternary salt of dimethyl aminoethyl acrylate, diethylaminoethyl acrylate, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, dimethylaminopropyl methacrylamide, dimethylaminopropyl acrylamide, and diallyl dimethyl ammonium chloride.

The invention relates to an equipment cleaning agent which is used in the field of petroleum and chemical industry, in particular to a ferrous sulfide dirt neutral complexing cleaning agent which is used for washing a synthesized ammonia low-temperature methanol washing unit system in the petroleum chemical industry and the coal chemical industry. The ferrous sulfide dirt neutral complexing cleaning agent is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium gluconate, 7 to 11 parts of sodium salicylate, 20 to 26 parts of gadoliniam diethylene triamine pentaacetic acid, 20 to 26 parts of sodium ethylene diamine tetracetate, 40 to 46 parts of propenoic acid-itaconic acid copolymer, 25 to 32 parts of disodium polyepoxysuccinicate, 12 to 15 parts of sodium hydroxyphenylace, 3 to 7 parts of triethanolamine, 3 to 7 parts of hydrogen peroxide, 0.1 to 0.3 part of lauryl sodium sulfate, 0.1 to 0.3 part of polydimethyl siloxane fluid and 40 to 45 parts of water. The ferrous sulfide dirt neutral complexing cleaning agent is free from generating hydrogen sulfide when cleaning the ferrous sulfide dirt and corroding the equipment and has strong capacity for complexing the iron ions, the removal speed is fast, the decontamination rate is more than 98 percent, the neutralization and passivation are unnecessary to carry out after the chemical washing, and the equipment can be put into operation immediately.

The invention provides a technology for preparing a diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane by a physical blending/phase transition technology and a chemical grafting blending/ phase transition technology. The technology is as follows: reagents such as diethylene triamine pentacetic acid, polyvinylidene fluoride, melamine, dimethyl sulfoxide, acrylic acid, polyvinylpyrrolidone and the like are taken as raw materials; diethylene triamine pentacetic acid polyamino and polycarboxylic acid compound is uniformly mixed in a polyvinylidene fluoride separation membrane and resin respectively by the physical blending/phase transition technology and the chemical grafting blending/ phase transition technology. The technology improves the hydrophobic properties of the conventional polyvinylidene fluoride micro-filtration separation film and the resin, realizes metallic ions in waste water, and has the advantages of simple operation, uniform blending and the like. The diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane and the resin increase the purification efficiency of drinking water, realize the resource utilization of the heavy metal in the industrial wastewater, and expand the application field of the polyvinylidene fluoride micro-filtration separation film.

The invention discloses a fuel battery used oxygen reduction catalyst and the preparation method thereof, and relates to a loaded catalyst which is composed of a transition metal chelate and a carbon black carrier, wherein, the transition metal chelate is prepared through the reaction of transition metal salt and diethylene triamine. MN3 structure is included in the molecule of the transition metal chelate (M is transition metal and N is nitrogen atom), and an active site is provided for catalyzing the oxygen reduction reaction. The catalyst takes the diethylene triamine with low cost as the raw material; overcomes the problems of the traditional oxygen reduction catalyst of the macrocyclic compound, such as metalloporphyrin and metal phthalocyanine, that the cost of the raw materials is high, and the traditional oxygen reduction catalyst is not suitable for the large scale production industrial production; and has the advantages of simple preparation technology, mild condition, secure process, low cost, and so on. The catalytic performance of the catalyst is equivalent to the oxygen reduction of the metalloporphyrin, the catalytic has good anti carbinol oxygenic property, and can be applied to the oxygen reduction reaction of the cathode of the battery.

For use for a circuit board where a through hole and a blind via hole co-exist, an electrolytic copper plating bath in which the covering power for the through hole and the plugging performance for the blind via hole are sufficient, and an electroplating method that uses the electrolytic copper plating bath, are disclosed. The electrolytic copper plating bath is mainly composed of a water-soluble copper salt, sulfuric acid and chloride ions. A polyamide polyamine, obtained on processing by heating of an epichlorohydrin modified product of a polycondensation product of diethylene triamine, adipic acid and ε-caprolactam, is contained in the bath as a leveler.

The invention discloses an organic amine compound absorbent for removal of carbon dioxide in fire coal flue gas; the organic amine compound absorbent comprises the following components: by mass, 10%-45% of a main absorbent component, 0-10% of an assistant absorbent component, 0.01%-6% of a corrosion inhibitor, 0.01-3% of an antioxidant, 0-5% of a defoaming agent and the balance of water; wherein the main absorbent component comprises the following components: account for the total mass percentage of the organic amine composite absorbent, 3%-20% of monoethanolamine MEA, 0-12% of 2-amino-2-methyl-1-propanol AMP, 1%-15% of sun of piperazine PZ and N-aminoethyl piperazine AEP and 1%-12% of sum of aminoethyl ethanolamine AEEA and N-methyl monoethanolamine MMEA; and the assistant absorbent comprises one or a plurality of component selected from the group comprising diethanol amine DEA, diethylenetriamine DETA, triethylene tetramine TETA, N-methyldiethanolamine MDEA, sulfolane and tertbutylaminoethoxyethanol TBEE. The organic amine compound absorbent has the advantages of good stability, large absorption capacity, high purification degree, low regeneration energy consumption, good desorption effect, great reduction of degradation loss of the compound absorbent in the process of using, and the like.

The invention is directed to an improved drug delivery system that includes a micelle, comprising polyethylene glycol and a lipid component, and a pharmaceutical agent dispersed in the lipid component. The delivery system may also include a targeting ligand. The micelle delivery system of the invention is capable of stabilizing, inter alia, poorly soluble pharmaceutical agents and increasing their delivery efficacy. Appropriate pharmaceutical agents useful in the system of the invention include anti-inflammatory agents, agents for photodynamic therapy, anti-tumor agents, anti-neoplastic agents, anti-metastatic agents, and imaging agents, as well as hydrophobized derivatives thereof. Specifically, the pharmaceutical agent can be porphyrin, chlorine-6-trimethyl ester, tamoxifen, paclitaxel, 1,3-bis(2-chloroethyl)-1-nitrosourea, camptothecin, ellipticine, rhodamine, dequalinium, diphenylhexatriene, vitamin K3, diethylene triamine pentaacetic acid, or a functional derivative thereof. The micelles in the system of the invention have low critical micellar concentration and high kinetic stability, which provides great advantages in biodistribution, for example, accumulation at the site of a tumor.

The invention relates to a room temperature curing waterborne epoxy resin curing agent and a preparation method thereof. The method comprises the following detailed steps of: (1) sealed end: at constant temperature between 60 DEG C and 90 DEG C, mono epoxy is dripped into diethylene triamine and the reaction lasts for 3h to 6h; (2) addition: bi-epoxy is dripped into the mixture obtained at Step (1) at a constant temperature of 60 DEG C to 90 DEG C and the reaction lasts for 4h to 8h; (3) salifying: acetate is added into the mixture obtained at the step (2) at a constant temperature of 60 DEG C to 90 DEG C to carry out salifying, the mixture is stirred for a while, then water is added into the mixture to dilute until the solid content is 60 percent and stirring is kept on for 1h to 3h; and (4) a curing catalyst is added into the mixture obtained at the step (3) at constant temperature of 60 DEG C to 90 DEG C, the content of the curing catalyst is 0.1 percent to 5 percent, stirring is kept on for 0.2h to 1h and then the finished product is discharged. The waterborne epoxy resin curing agent has relatively good curing performance and water-solubility, contains 60 percent of solid content and is a pale yellow liquid. The addition of the curing catalyst solves the problems of the too low speed and too long period of curing at room temperature and excellent curing performance and film properties can be fulfilled at room temperature.

The invention discloses a preparation method and application of degradable hyperbranched polyamidoamine. Degradable hyperbranched polyamidoamine is prepared by taking a bifunctional monomer containing a disulfide bond or a ketal bond and an amino-containing trifunctional monomer N-aminoethylpiperazine (AEPZ) or diethylenetriamine (DETA) as main raw materials and employing a one-pot method to perform Michael addition polymerization reaction. By coupling polyethylene glycol (PEG) and folic acid (FA) with degradable hyperbranched polyamidoamine, folic-acid-targeted PEGylated degradable hyperbranched polyamidoamine is obtained. The raw materials are easily available, the preparation method is simple, and the prepared polymer medicine carrier has the advantages of hyperbranched polyamidoamine, such as three-dimension branching structure, a lot of cavities at the interior of molecules, low viscosity, a lot of functional groups, simple preparation method, biodegradability, and the like. Additionally, the water solubility and the stability of the carrier material are improved by grafting a PEG chain segment to the terminal, and the carrier is endowed with active targeting property on tumor cells through coupling of FA.

The invention discloses a method for preparing hyperdispersant by adopting oxidized graphene and application thereof. The oxidized graphene is adopted as centronucleus of the hyperdispersant; diethylene triamine and stearic acid are adopted to implement two-step grafting, so that the reaction of hydroxy and epoxy radicals on the upper surface of the oxidized graphene disappears to form stable anchoring radicals, and the grafted diethylene triamine and stearic acid are formed to a solvation chain for preferably wetting, dispersing and bridging all components of a wood-plastic composite material. The method provided by the invention adopts the hyperdispersant prepared by the oxidized graphene for applying in the production process of the wood-plastic composite material, so that the incompatibility among plastic resin, filler and wood powder caused by the interface polarity can be effectively eliminated, the dispersing performance thereamong is modified, bridged chemical hydrogen bonds are generated thereamong, and finally, the mechanical property of the material is largely improved.

The invention relates to an imidazoline asymmetrical bi-quaternary ammonium salt. The preparation method comprises the following steps that: diethylene triamine and organic acids of octalkyl to heptadecyl react to generate alkyl imidazoline; long chain alkyl tertiary amine, hydrochloride of long chain alkyl tertiary amine and epichlorohydrin react to generate N-(3-chlorine-hydroxypropyl)-N, N-dimethyl long chain alkyl quaternary ammonium salt; and the alkyl imidazoline and the N-(3-chlorine-hydroxypropyl)-N, N-dimethyl long chain alkyl quaternary ammonium salt react. When the salt is used as a carbon steel corrosion protection acid pickling inhibitor, the salt has the advantages of easy synthesis, low-priced and easily-bought materials; because the salt is the organic inhibitor, the salt is nontoxic and unharmful, and has wide biological activity and good water solubility and can effectively inhibit corrosion of metallic matrix in the acid and excessive consumption of acid liquor; moreover, the salt also has the advantages of low consumption, high efficiency, strong sustained action capability and good application prospect.

The invention relates to the technical field of removal of formaldehyde in urea-formaldehyde resin adhesives for artificial boards, particularly preparation and application of hyperbranched polyamide. The hyperbranched polyamide is synthesized by the following steps: carrying out reaction on butanedioic anhydride and diethylenetriamine used as raw materials to generate two AB2 monomers, and carrying out reaction on the two AB2 monomers under certain reaction conditions to obtain the hyperbranched polyamide. The hyperbranched polymer has multiple branches and multiple terminal amino groups, and thus, has multiple reaction active sites and can sufficiently react with formaldehyde. The hyperbranched polymer has low viscosity, has the three-dimensional structure, does not have intermolecular entanglement, and thus, can implement high utilization value after being added into the urea-formaldehyde resin adhesive. The hyperbranched polyamide is an environment-friendly formaldehyde catcher, thereby reducing the hazards to the human health and satisfying the requirements for national green material production.

The invention relates to a neutral blocking remover composition for oilfield oil extraction, which is prepared from the following components in parts by weight: 30-35 parts of acrylic acid-methyl acrylate copolymer, 44-50 parts of diethylene triamine pentaacetic acid, 30-35 parts of sodium polyepoxysuccinate, 30-35 parts of amine malate, 10-14 parts of sodium alkyl sulfonate, 5-8 parts of amine hydroxy ethylidene diphosphate, 10-14 parts of hydrolyzed polyacrylamide, 12-17 parts of atlapulgite, 20-25 parts of sodium persulfate, 7-10 parts of sodium lignosulfonate, 5-8 parts of tannin, 12-16 parts of sodium malate, 5-8 parts of sodium sulfosuccinate, 5-8 parts of starch, 9-12 parts of methyl lactate, 0.2-0.3 part of vanadium pentoxide and 0.1-0.3 part of diisobutyl carbinol. The neutral blocking remover composition for oilfield oil extraction has the advantages of high blocking removal speed, no corrosivity due to neutrality and no dead area, can quickly dissolve the material scales, clean the oilfield stratum and remove blocking, and does not generate the phenomenon of precipitation or secondary blocking; and the cleaning waste liquid does not need to be subjected to sewage treatment after returning to the ground.

The invention synthesizes a type of liver targeted, biodegradable high molecular MRI contrast medium with alpha,beta- poly [(2-aminoethyl) - L-asparagine] as fundamental chain, galactose as target gene, diethylenetriamine pentaacetic acid or L-tyrosine methyl ester derivatives as Gd3+ ligand. The contrast agent is less toxic, biocompatible, and has good relaxation rate than low molecular business contrast medium. Animal experiments showed that in liver organizations its enhancing effect is three times better than commercial and low molecular contrast medium (gadolinium sprayed acid cyelophosphate); the residence time in liver is more than 24 hours, which is 18 hours longer than low molecular business contrast medium. The feature is that Zeta potential for the contrast medium is negative and less than -10mV. We can achieve the MRI visible, the liver targeted, core-shell nanogene vector system with it as a gene vector system shell structure.

The invention provides a method for determining apolipoprotein A2 by using an immunity transmission turbidimetric method, and a kit composed of applied reagents. The reagents applied by the method comprises one or more stabilizing agent selected from substances of: glycol(alpha-amino ethyl)ether tetraacetic acid, iminodiacetic acid, sodium polyoxyethylene fatty alcohol ether sulfate (AES), 1,2-cylohexanediol diglycidol, sodium diethylene triamine pentacetate, and hexapolyglycerol dioleates; and one or more high-molecular accelerating agents selected from substances of: fatty alcohol polyoxyethylene ether, polyvinylpyrrolidone, glycol polyoxylethylene ether, hydroxypropyl methylcellulose, carboxymethyl cellulose, and sodium polyacrylate. The method provided by the invention can be used in batch detection and analysis. The method and the kit have high anti-interference capabilities against high fat, jaundice and hemolysis samples.

This invention discloses sol-gel preparation method of yttrium barium copper oxygen superconducting film. The materials are acetic yttrium, acetic barium, acetic copper, their mol ratio is that acetic yttrium 1 part, acetic barium 2 parts, acetic copper 3-4 parts, trifluoroacetic acid 4-10 parts, water 20-160 parts, acrylic acid 6-40, diethylene triamine 1-5, methanol 60-240, benzoyl acetone 1-10. Fluorine content of the sol is low, components are easy to adjust, chemical stability is good, and preparation process is simple. High temperature superconductive film made by this sol is easy to get superconductive thickness film, its technique repeatability is high, this method can be used to make large area yttrium barium copper oxygen film, the film porosity is low, surface purify is good, and good superconducting characteristic.

The invention provides a petroleum hydrocarbon degrading strain, namely, Acinetobacter venetianus LCL-1. According to the petroleum hydrocarbon degrading strain, the ocean bottom mud polluted by petroleum is screened to obtain ocean indigenous microbes which can adapt to the complex ocean environment and efficiently degrade petroleum hydrocarbon, the commercial value is good, and the application is wide. In addition, the invention further provides a preparation method of polyurethane foam of petroleum hydrocarbon degrading bacteria; the preparation method comprises the following steps: dispersing polyurethane foam in deionized water, adjusting the pH, adding with diethylenetriamine for water bath reaction, carrying out water washing, carrying out vacuum drying, thus obtaining amine modified polyurethane foam, dispersing the amine modified polyurethane foam in an LB culture medium, inoculating the strain into the LB culture medium, carrying out cross-linking reaction, thus obtaining the polyurethane foam of the petroleum hydrocarbon degrading bacteria; the amine modified foam has cross-linking reaction with extracelluar secreta on the surfaces of the microbes, so that immobilization and apposition growth of the microbes are facilitated, the immobilized microbes can be protected from being washed away by seawater, so that the recycling is facilitated.

The invention relates to a cyanide-free silver plating solution additive which comprises the following components by ratio: 0.1-10g/ l of brightener, 5-10g/ l of leveling agent, 100-600g/ l of complexing agent and the balance of plasma water, wherein the brightener is one or mixture of more in nitrogen-containing compound, triazole, benzotriazole, 2-hydroxypyridine, pyridine, 22 dipyridyl, 1, 10-phenanthroline, triethylene tetramine and diethylene triamine according to any ratio; the leveling agent is one or mixture of more in aromatic hydrocarbon compounds, naphthalene, 1-methylnaphthalene, 1, 4-naphthoquinone and 1-naphthol according to any ratio; the complexing agent is one or mixture of more in disodium ethylenediamine tetraacetate, niacin, aminosulfonic acid and potassium pyrophosphate according to any ratio. The cyanide-free silver plating solution additive has the beneficial effects that the plating solution is stable, low in toxicity and good in dispersing ability; the obtained plating layer is bright and fine as well as good in binding force; the technology adopts the environment-friendly organic additive which does not contain heavy metal and sulfide; the plating layer is good in corrosion resistance. Furthermore, the cyanide-free silver plating solution additive can be directly used for parts such as brass, copper, chemical nickel and the like, preplating is not needed, and the binding force is also guaranteed.