92 results about "Dimethylaminopropylamine" patented technology

The invention discloses a loaded nickel-base bi-component catalyst and an application thereof. The catalyst is prepared by the following steps of: (1) firstly immersing a carrier with a soluble nickel salt solution by adopting an isovolumetric immersion method, then drying and roasting, wherein the carrier is gamma-aluminium oxide, silicon dioxide, molecular sieve or activated carbon; and (2) immersing the product obtained by the step (1) with a soluble transitional metal salt solution of another transitional metal by adopting the isovolumetric immersion method, drying and roasting again, thus the loaded nickel-base bi-component catalyst is obtained, wherein the transitional metal is selected from Fe, Co, Cr, Cu, Zn, Pt, Pd, Ru, Au and Ag. The loaded nickel-base bi-component catalyst disclosed by the invention is applied to preparation of high purity 3-dimethyl amino propylamine by catalytic hydrogenation on 3-dimethyl amino propionitrile, the reaction selectivity is high, and the catalyst can be reused, thus the catalyst is suitable for industrial application.

The invention discloses a microcrystalline-cellulose-modified rubber material composed of the following raw materials, by weight: 3-4 parts of an anti-aging agent BPS, 0.2-0.6 parts of 8-10% sulfuric acid, 26-30 parts of melamine, 5-8 parts of a 37% formaldehyde solution, 7-10 parts of urea, 6-10 parts of microcrystalline cellulose, 1-1.2 parts of isopropanol, 2-3 parts of sulfur, 3-4 parts of maleic anhydride, 210-230 parts of neoprene S40V, 3-4 parts of sodium fluosilicate, 20-26 parts of montmorillonite powder, 5-7 parts of tetrabutyl titanate, 20-24 parts of carbon black, 0.4-1 parts of sodium cinnamate, 2-3 parts of abietinol, 2-4 parts of palm wax, and 1-2 parts of dimethylaminopropylamine. According to the invention, microcrystalline cellulose is processed with the crosslinking effect of maleic anhydride, and is blended with abietinol, such that surface viscosity is improved, material compatibility is promoted, and good antioxidant effect is provided. Microcrystalline cellulose forms a closer network structure in melamine resin formed by melamine, urea and formaldehyde, such that resin viscosity and tensile deformation resistance are well improved, and certain reinforcement and tackifying effects are provided in the rubber material. Therefore, flexural cracking resistance, hot-air aging resistance and stability of the rubber material are improved.

Water-soluble and water dispersible undecylenic amido propyl dimethyl hydroxyl ethoxy ethyl ammonium undecylenate compounds of formula I having anti-dandruff, preservative and sunscreen activity wherein R1, R2 are from C1-C6 carbon atoms, R3 is undecylenic acid, amino group is selected from dimethyl amino propyl amine. Personal care compositions comprising compounds of formula I

The invention discloses an impact and cracking resistant material for combustion gas pipelines. The material comprises, by weight, 40-60 parts of high density polyethylene, 30-40 parts of ethylene propylene diene monomer, 20-30 parts of acrylonitrile-butadiene-styrene copolymer, 30-40 parts of carbon black, 1.8-2.6 parts of modified montmorillonite, 0.9-0.13 parts of modified carbon nanotubes, 20-30 parts of nonyl cyclohexanedicarboxylate, 20-30 parts of methyl acetylricinoleate, 15-20 parts of ammonium polyphosphate, 10-15 parts of zinc borate, 5-8 parts of red phosphorus, 1-3 parts of di-tert-butyl peroxide, 0.4-0.6 parts of dimethylaminopropylamine, 0.1-0.3 parts of a promoter CZ, 2-4 parts of a Ca/Zn composite stabilizer, 1-2 parts of zinc stearate, 1-2 parts of butylmercaptooxo stannane, 0.5-1 part of an antioxidant D, 0.3-0.5 parts of an antioxidant RD and 1-3 parts of polyethylene wax. The material has the advantages of good impact resistance and high toughness.

The invention belongs to the field of special surfactants and particularly relates to a carbon dioxide soluble zwitterionic surfactant and a preparation method thereof. The surfactant is structurally characterized in that a carbon dioxide-philic branched alkylene oxide group, an ester group characteristic group and a hydrophilic glycine betaine group are introduced into a hydrophobic chain, so that the surfactant has good carbon dioxide-philic and hydrophilic properties and also has high-salinity hard water resistance. According to the preparation method of the surfactant disclosed by the invention, alkyl alcohol serves as an initiator to cause epoxyalkane aggregation, and the final product is obtained through the anhydride esterification, amidation of N,N-dimethylaminopropylamine and sodium chloroacetate quaterisation reaction. The surfactant has the following advantages that (1) the synthetic route is mature and easy to implement, and (2) the surfactant has high solubleness in supercritical or liquid-phase carbon dioxide.

The present invention relates to raspberry seed oil derivatives derived by the reaction of dimethyl amino propyl amine and cold pressed raspberry seed oil. This intermediate is subsequently reacted with sodium monochloroacetic acid to make a raspberry betaine. The choice of cold pressed raspberry seed oil as a raw material in the preparation of the compounds of the present invention is critical, since it has been found that the cold pressed raspberry seed oil contains antioxidants, antimicrobial compounds and which when reacted with a DMAPA result in products that deliver said actives to the skin and hair, resulting in protection of the skin and hair from environmental factors such as acid rain, ozone attack and UV degradation.

The present invention relates a reactive tertiary amine catalyst used in a phenolic urethane cold box process. Through the use of a reactive tertiary amine, the problems associated with vaporous amine waste streams can be eliminated. Some typical reactive tertiary amine catalysts that are useful in the present invention include 1-dimethylamino-2-propanol (DMA-2P), monoethanolamine and dimethylaminopropylamine (DMAPA).

The invention discloses a high-hardness corrugated pipe. The high-hardness corrugated pipe is characterized by consisting of the following raw materials in parts by weight: 96-100 parts of high-density polyethylene, 2-3 parts of potassium feldspar powder, 1-2 parts of tung oil, 1-2 parts of sodium hydrogen phosphate, 2-3 parts of montmorillonite powder, 0.3-0.6 part of dimethylaminopropylamine, 0.3-1 part of antiscorching agent CTP, 2-3 parts of polytetrafluoroethylene, 1-2 parts of polylactic acid, 2-3 parts of aluminum nitride, 0.1-1 part of cuprous chloride, 0.1-0.2 part of fenbutatin oxide and 6-10 parts of composite fillers. The corrugated pipe disclosed by the invention has high mechanical property and friction resistance, high hardness, good impact resistance and ring stiffness, excellent pressure resistance and good stability.

The invention discloses a high-dispersion stable rubber material composed of the following raw materials, by weight: 3-4 parts of an anti-aging agent D, 2-3 parts of a vulcanizing agent MOCA, 1-2.4 parts of phytosterol, 40-46 parts of white clay, 6-8 parts of propylene glycol alginate, 1-3 parts of dimethylaminopropylamine, 3-4 parts of chlorinated paraffin, 0.3-1 parts of potassium bisulfate, 0.2-0.6 parts of 8-10% sulfuric acid, 26-30 parts of melamine, 5-8 parts of a 37% formaldehyde solution, 7-10 parts of urea, 6-10 parts of microcrystalline cellulose, 1-1.2 parts of isopropyl alcohol, 3-4 parts of maleic anhydride, and 210-230 parts of neoprene S40V. According to the invention, under the crosslinking effect of maleic anhydride, microcrystalline cellulose can form a closer network structure in melamine resin formed by melamine, urea and formaldehyde. With an added dispersing agent, the dispersion effect of cellulose in resin can be effectively promoted; compatibility can be improved; resin viscosity and tensile deformation resistance can be greatly improved; and certain reinforcement and tackification effects are performed in the rubber material. Therefore, flexure cracking resistance, hot air aging resistance and stability of the material are improved.

The invention discloses a polysaccharide derivative containing a polypeptide targeting factor and a preparation method thereof. The preparation method comprises that a polypeptide targeting factor and a polysaccharide derivative containing a 3-dimethylaminopropylamine group as a raw material undergo a mercapto-alkene click chemical reaction at the room temperature. The preparation method has mild reaction conditions, is free of strong acid and strong alkali reagents and maximally keeps the biological activity of the polypeptide and the polysaccharide. The preparation method has simple processes, is easy to operate and needs cheap equipment and raw materials. The polysaccharide derivative containing a polypeptide targeting factor can be used as a drug or a gene carrier having performances of targeted transport to a lesion location and thus the polysaccharide derivative has a certain application prospect in the field of biomedicine.

The present invention relates to a novel class of polymeric compounds having specific quaternized amine based upon a dimer acid reacted with an dimethyl amino propyl amine to make an amido amine, which is subsequently reacted to make a polymeric quaternary compound. Dimer acid is a C-36 diacid having a cyclic structure and two amine groups that allow for the synthesis of a high molecular weight cationic compound which is extremely substantitive to human skin and are well tolerated by human tissue making them suitable for use preparation of barrier products for personal care applications.

The invention discloses an antibacterial pharmaceutical packaging material and a preparation method thereof. The antibacterial pharmaceutical packaging material is prepared from the following raw materials in parts by weight: 20 to 45 parts of polyvinyl chloride, 12 to 25 parts of permethrin, 8 to 18 parts of polyethylene terephthalate, 3 to 10 parts of nanometer titania, 2 to 8 parts of nano-silver, 12 to 25 parts of polyimide, 10 to 22 parts of polyglycolic acid, 3 to 8 parts of zinc oxide, 5 to 12 parts of acrylamide, 3 to 10 parts of ammonium dihydrogen phosphate, 6 to 14 parts of polyester fiber, 1 to 2.5 parts of trichlorofluoromethane, 2.5 to 7 parts of polyethersulfone, 4 to 11 parts of diphenyldichlorosilane, 2 to 7 parts of calcium carbonate, 2 to 6 parts of titanate coupling agent, 5 to 12 parts of dicumyl peroxide, 3 to 9 parts of calcium alkylbenzene sulfonate, 2 to 8 parts of dimethylaminopropylamine, and 3 to 13 parts of ethylene-vinyl acetate copolymer. Compared with the prior art, the antibacterial pharmaceutical packaging material provided by the invention has the advantages of high strength, simple preparation method and the like, and has a good antibacterial effect, can effectively inhibit the microbial activity, and is particularly suitable for the medical field.

The present invention relates to a novel class of polymeric compounds having specific quaternized amine based upon a dimer acid reacted with an alkanolamine to make an ester quaternary compound. Dimer acid is a C-36 diacid having a cyclic structure and two amine groups that allow for the synthesis of a high molecular weight cationic compound which is extremely substantitive to human skin and are well tolerated by human tissue making them suitable for use preparation of barrier products for personal care applications. These materials are dimethylaminopropyl amine free, which is highly desirable in personal care applications.

The invention relates to paint and in particular relates to acrylic resin paint for ultraviolet-resistant copper sculptures. The paint is prepared from the following raw materials in parts by weight: 2-3 parts of nano cerium oxide, 3-4 parts of potassium silicate, 1-2 parts of lithium silicate, 30-34 parts of acrylic resin, 1-2 parts of copper citrate, 1-2 parts of 2-aminoethylheptadecenylimidazoline, 10-12 parts of tripropylene glycol diacrylate, 1-2 parts of phenyl glycidyl ether, 4-7 parts of allyl glycidyl ether, 2-3 parts of vinyltriethoxysilane, 0.5-1.2 parts of accelerator Na-22, 2-3 parts of tetrabutyl titanate, 1-2 parts of isophorone diamine, 10-12 parts of trimethylolpropane triacrylate, 1-2 parts of dicumyl peroxide, 4-6 parts of dimethylaminopropylamine, 5-6 parts of auxiliary, 10-12 parts of xylene and 10-12 parts of butyl acetate. The paint contains nano cerium oxide. The paint prepared from nano cerium oxide in combination with other raw materials has high hardness, good optical properties, stable properties and long service life, and is resistant to ultraviolet radiation aging and environment corrosion.

The invention discloses water-based environment-friendly wear-resistant paint. The water-based environment-friendly wear-resistant paint consists of the following raw materials in parts by weight: 90-100 parts of alkyd resin, 1-2 parts of 1,2-dimethoxyethane, 3-5 parts of aluminum borate whisker, 1-2 parts of volcanic ash, 3-4 parts of expanded perlite, 2-3 parts of polyvinyl alcohol, 0.6-1 part of dimethylaminopropylamine, 0.5-1 part of naphthenic acid, 2-4 parts of iso-octyl methacrylate, 1-3 parts of magnesium stearate, 0.5-1 part of manganese sulfate, 1-2 parts of aluminum sulfate, 0.7-1 part of stearic acid, 8-12 parts of wollastonite in powder, 2-4 parts of a flame retardant agent, 1-2 parts of sodium tripolyphosphate and 80-100 parts of deionized water. Compared with solvent type paint, the paint disclosed by the invention is more environment-friendly and scratch-resistant, and is low in volatilization, good in dustproof effect, and lasting in protective effect; and a coating formed by the paint is stable, and is high in adhesive force, good in surface wear resistance, not liable to age and drop, and high in impact resistance.

The invention provides a fluoroplastic electric wire and cable. The fluoroplastic electric wire and cable is prepared from the following components in parts by weight: 30 to 80 parts of basic resin, 15 to 50 parts of a fluororubber elastomer, 2 to 5 parts of an auxiliary crosslinking agent, 3 to 8 parts of a rheological agent, 0.5 to 2 parts of an acid absorption agent and 5 to 20 parts of color master batch, wherein the basic resin is one or a mixture of two of the following substances: a 1,2-difluoroethylene homopolymer and a 1,2 difluoroethylene-hexafluoropropylene copolymer; the fluororubber elastomer is one or a mixture of more of the following substances: a vinylidene fluoride and chlorotrifluoroethylene copolymer, a vinylidene fluoride and hexafluoropropylene copolymer, and a tetrafluoroethylene, vinylidene fluoride and hexafluoropropylene terpolymer; the auxiliary crosslinking agent is one or a mixture of more of the following substances: tetrahydrophthalic anhydride, hexahydrophthalic anhydride, triethylenetetramine, dimethylaminopropylamine and diethylaminopropylamine. The fluoroplastic electric wire and cable, provided by the invention, is applicable to adverse environments with corrosive gas, heat engine cycle and mechanical stress effects.

The invention discloses high-strength carbon fiber enhanced boron nitride ceramic matrix composite and a preparation method thereof. The high-strength carbon fiber enhanced boron nitride ceramic matrix composite is characterized by being prepared from raw materials in parts by weight as follows: 60-70 parts of boron nitride, 5-8 parts of iridium trioxide, 5-8 parts of hafnium carbide, 8-12 parts of manganese powder, 10-14 parts of modified high-elastic carbon fiber, 0.03-0.05 parts of ammonium persulfate, 5-7 parts of acrylic acid, 0.3-0.5 parts of dimethylaminopropylamine, 10-12 parts of light calcium carbonate, 2-3 parts of chitosan, 20-30 parts of ethanol and 40-60 parts of deionized water. With modified high-strength carbon fiber as an enhancing phase, the high-strength carbon fiber enhanced boron nitride ceramic matrix composite has the advantages of excellent oxidation resistance, improvement of ceramic toughness and strength, high-temperature and low-temperature resistance, good thermal conductivity and small expansion coefficient; the surface of a blank body is coated with the added iridium trioxide and hafnium carbide, and accordingly, the sintering performance is improved.

The invention relates to a low-impurity fatty acid amide propyl tertiary amine production process and device capable of reducing cost and shortening the production cycle. Gas dimethylaminopropylamineand liquid fatty acid are subjected to a gas-liquid two-phase reaction and sequentially pass through a heater and an atomizer to become mist; dimethylaminopropylamine is used for uniformly distributing gas in the rectifying tower through the porous distributor, methylaminopropylamine gas penetrates through the rectifying tower from bottom to top and is in rapid contact with atomized fatty acid, the gas-liquid two-phase continuous countercurrent contact strengthens the mass transfer process, and the amidation reaction is greatly promoted. According to the invention, the materials in the rectifying tower depend on the special structures of the units and the fluid motion, so that the fluids are respectively dispersed and mutually mixed, a good mixing effect is achieved, the production periodis obviously shortened, and the production of PKO products with low fatty acid content is facilitated; the problem of dimethylaminopropylamine wastewater discharge is avoided, clean production of fatty acid amide propyl tertiary amine is truly realized, the production period is shortened, the production cost is reduced, and the like.