32 results about "Alkyl" patented technology

The invention provides a novel method for preparing a latent nonionic self-emulsifying epoxy curing agent. The method comprises the following steps of: reacting long alkyl chain fatty amine with diglycidyl ether to prepare an addition product of which the middle part is connected with a long hydrophobic side chain and two ends are provided with epoxy groups; and reacting polyamine with a carbonyl compound to prepare an imine compound which contains secondary amine, and sealing the end to prepare the latent nonionic self-emulsifying epoxy curing agent. Under water environment, the imine structure in the curing agent hydrolyzes hydrophilic amino, and the curing agent contains the long hydrophobic alkyl chain, so the curing agent has the functions of emulsifying and curing an epoxy resin. The curing agent can be used for water-based epoxy emulsion coatings, water-based epoxy resin modified emulsified asphalt and cement and the like, and has excellent adhesion performance of ketimine on a wet surface. Due to the introduction of hydrophobic chains, the stability of the imine curing agent is improved in the water environment, and the performance of the curing agent in the aspect of wet surface or underwater adhesion can also be improved.

A multi-layer packaging film is provided having at least four layers arranged in sequence comprising: (1) a heat-sealing first layer comprising at least 50% by weight of a copolymer of propene, and at least one α-olefin selected from the group consisting of ethylene, butene-1, methylpentene-1, hexene-1, octene-1, decene-1 and mixtures thereof, said copolymer having a propene content of at least 60 wt. %, a Tm between about 100° C. and about 145° C., a Mw/Mn of between 1 and 5, and n-hexane extractables of less than 4 wt. %; (2) second and fourth layers each comprising (a) at least 10 wt. % of a first copolymer of ethylene and at least one C₄-C₈ α-olefin, said copolymer having a density of from 0.900 to 0.915 g/cm³ and a melt index of less than 2 dg/min., (b) at least 10 wt. % of a second copolymer of ethylene with from 4 to 18 wt. % of a vinyl ester, alkyl acrylate, acrylic or methacrylic acid, and (c) from 0 to 60 wt. % of a third copolymer of ethylene and at least one C₃-C₈ α-olefin having a density less than 0.900 g/cm³ and a melting point less of between 65-98° C.; and (3) a third layer comprising at least 80% by weight of at least one copolymer of vinylidene chloride with from 2-20 wt. % (based on said copolymer) of vinyl chloride or methyl acrylate.

Communications cable is provided for use in downhole wells wherein the cable will be exposed to a temperature of at least 280° C., the cable including as a component thereof a composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and melt flowable polytetrafluoroethylene, said polytetrafluoroethylene by itself having no tensile property and being present in said composition in an amount effective to enable the component to withstand this temperature, with the high temperature exposure of the cable component being effective to thermally transform the composition in the solid state, thereby obtaining epitaxial co-crystallization.

A method for producing a surface-treated silver-containing powder comprises vacuum freeze drying a dispersion liquid, which is obtained by dispersing silver or silver compound particles (a) in a solvent together with a surfactant (b) of an alkylamine type or an alkylamine salt type, or a phosphate type having a phosphorus content of 0.5 to 10% by mass so that the surfactant (b) is adsorbed in the surface of the silver or silver compound particles (a), thereby producing a silver-containing powder (c) whose surface is treated with the surfactant (b). Moreover, a silver paste is produced by dispersing the surface-treated silver-containing powder (c) in a solvent, or in a solvent with a resin.

The invention relates to fibers capable of heat storage and temperature adjustment. The fiber prepared by using the composite melt-spinning method comprises the following components by weight percent: 20% to 60% of polymer-type phase-change materials as a core component or an island component and 80% to 40% of fiber-forming polymers as a skin component or a sea component, wherein the polymer-type phase-change materials comprise the homopolymer or copolymer of alkyl acrylate, alkyl methacrylate and monoalkyl/dualalkyl itaconate or the copolymer of the homopolymer thereof, and is characterized in that the normal alkyl capable of carrying out the solid-liquid and liquid-solid phase transition and further achieving the effect of energy storage is fixed on the main chain of the polymer by the covalent bond; and the fiber-forming polymer comprises at least one selected from polyethylene, polypropylene, polyamide, co-polyamide, co-polyester and co-polyacrylonitrile. The weight loss of the fiber taking methylbenzene as solvent is not higher than 5% after being subjected to the treatment of a Soxhlet extractor for 2 hours.

The invention provides a lubricating grease composition for elevator wire ropes, which comprises the following components in parts by weight: 50-80 parts of base oil, 5-10 parts of thickener, 10-35 parts of microcrystalline wax, 2-7 parts of nano silicon dioxide, 1-3 parts of oleic acid, 3-7 parts of alkyl diphenylamine, 1-3 parts of barium petroleum sulfonate and 2-5 parts of borate. The lubricating grease composition has the characteristics of high permeability, low bleeding tendency, oxidation resistance, corrosion resistance, rust resistance and the like.

The invention relates to a catalyst for ternary copolymerization of norbornenes, tetrafluoroethylene and pentenes and a ternary copolymerization method. The catalyst is characterized in that the catalyst is prepared through the following method comprising the steps of: dissolving iron dichloride, a ligand and an alkyl metal compound in a solvent in a dry single-neck glass bottle in an inert gas atmosphere, sealing a bottle mouth through an emulsion pipe, keeping the constant temperature in a water bath at the temperature of 40-50 DEG C for 10-30min, and cooling to obtain an iron complex catalyst. Compared with the prior art, the catalyst provided by the invention is a novel iron complex catalyst which can produce catalytic activity in an nitrogen-protected system at a certain pressure and the temperature of 20-120 DEG C so as to catalyze the ternary copolymerization of the norbornenes with the tetrafluoroethylene and the pentenes, and a product after soaking in methanol is very easy to wash and separate. The catalyst has the characteristics of high copolymer yield, low reaction temperature, low price, easiness in obtainment, high catalytic efficiency and the like.

The invention discloses a novel electrostatic removal agent for textile materials and a preparation method of the novel electrostatic removal agent. The material is prepared from the following components in parts by weight: 10-20 parts of sodium alginate, 5-10 parts of poly(dimethylsiloxane) divalent quaternary ammonium, 3-6 parts of polyvinyl alcohol, 1.5-3 parts of ethoxylated alkyl ammonium sulfate, 0.8-1.4 parts of poly(methylcyclotetrasiloxane), 0.5-2 parts of acetic acid aqueous solution and 100-150 parts of deionized water. The invention also provides a method for preparing the novel electrostatic removal agent. The method comprises the following steps: (1) adding 10-20 parts of sodium alga acid, 5-10 parts of poly(dimethylsiloxane) divalent quaternary ammonium, 3-6 parts of polyvinyl alcohol and 1.5-3 parts of ethoxylated alkyl ammonium sulfate into 100-150 parts of deionized water, and uniformly stirring at the temperature of 55-70 DEG C; and (2) slowly adding 0.5-2 parts of the 0.5-2 parts of acetic acid aqueous solution, adding 0.8-1.4 parts of polymethylcyclotetrasiloxane under heating conditions, and uniformly stirring, thereby obtaining the electrostatic removal agent for textile materials.

The invention relates to a method for dyeing a polyester fiber type material by using an oligomer removing agent. The method comprises the following step: adding the oligomer removing agent and a dyeing assistant into a dyeing bath together to dye the polyester fiber type material, wherein the formula of the oligomer removing agent comprises the following raw materials: 10-20 parts of dicarboxylic acid di(C1-C4) alkyl ester, 14-26 parts of aromatic di(C1-C4) carboxylic acid, 30-50 parts of aliphatic diol or aliphatic polyol, 10-20 parts of difunctional sulfonated monomer, 10-30 parts of polyether and 15-100 parts of polyoxyethylene sorbitan fatty acid ester. According to the method provided by the invention, by adding polyoxyethylene sorbitan fatty acid ester, good synergy is realized, the dispersion performance of a dyeing solution is enhanced, the adsorption of a condensed matter in the dyeing solution to the surface of fiber can be better inhibited, and the problems caused by a polyester oligomer in a dyeing process are further solved. Thus, the dyeing of fabric is uniform, the color fastness is improved, and the stability of a product is enhanced.

The invention relates to a preparation method of special coating resin composition for polyethylene. The preparation method comprises the following steps of: adding a peroxide crosslinking agent accounting for 0.001-0.5% of low-density polyethylene into the low-density polyethylene, and mixing and granulating to prepare the coating resin for the polyethylene, wherein the peroxide crosslinking agent consists of alkyl peroxide, lipid peroxide, diacyl peroxide and hydroperoxide, each of which accounts for 55-85%/5-15%/5-15%/5-15% according to the percentage by weight; the extrusion temperature of an extrusion machine is 150-250 DEG C, and the rotating speed of a screw is 20-60r/min; and the MFR (Melt Flow Rate) of the low-density polyethylene is 5.0-10.0g/10min, and the density is 0.915-0.925g/cm<3>. The special coating resin composition has the characteristics of high strength, good toughness, strong adhesive force and uniform filing forming and the like and is mainly used for surface coating, paper-plastic lamination, a bonding layer and film lamination of plastic woven bags.

The invention discloses a recovery method of an alkyl-halide fire extinguishing agent in a fire extinguishing bottle for aviation, which belongs to the technical range of recovery of fire extinguishing agents. The recovery method comprises the following steps of: firstly, establishing a fire extinguishing agent recovery system which enables a fire extinguishing agent to be liquefied by reducing the temperature and increasing the pressure simultaneously; setting the temperature of a refrigeration house to be -40 DEG C and the volume of a pressure storage tank to be 35L according to practical needs; placing the pressure storage tank in the small refrigeration house or refrigerator, placing the fire extinguishing bottle outside the small refrigeration house or refrigerator; connecting the pressure storage tank to the fire extinguishing bottle and the fire extinguishing agent storage tank respectively; opening an inlet shutoff valve to release the fire extinguishing agent in the fire extinguishing bottle to the pressure storage tank, wherein the pressure storage tank is higher than the fire extinguishing agent storage tank, and the liquid fire extinguishing agent in the pressure storage tank flows towards the fire extinguishing agent storage tank under the action of gravity; and automatically recovering according to specific pressure. The recovery method diclosed by the invention has the advantages that the fire extinguishing agent discharged into the atmosphere is obviously reduced, so that the environment is protected, and the purposes of reducing the waste of the fire extinguishing agent and improving the recovery efficiency of the fire extinguishing agent are fulfilled.

A composition for use as a stain blocker and a method of treating substrates therewith, said composition comprising a polymer of Formula 1 having the following repeating units in random sequence

wherein

• • R¹ is H, methyl or ethyl;
  • R² and R³ are each independently H, C₁ to about C₁₀ alkyl, —COOR⁴, CONR⁵R⁶, or —CN;
  • R⁴ is M, C₁ to about C₂₀ alkyl, or C₆ to C₁₀ aryl;
  • R⁵ and R⁶ are each independently H, C₁ to C₁₀ alkyl, C₆ to C₁₀ aryl, or R⁵ and R⁶ together with the nitrogen atom form a morpholine, pyrrolidine, or piperidine ring;
  • R⁷ is a C₄ to C₈ alkyl group; M is H, an alkali metal or alkali earth metal; h is about 10 to 100 mole %; i is 0 to about 80 mole %; j is 0 to about 60 mole %; k and n are each independently 0 to about 40 mole %; and m is 0.01 to about 0.5; provided that h+i+j+k+n equals 100, and provided that i+j+k+n is greater than zero, except when h is 100%.

Alkylphosphorofluoridothioates containing alkyl groups of greater than four carbons which exhibit significantly lower wear volume compared to ZDDP, methods of making same with high yields, and methods of using same as lubricant additives.

The invention belongs to the field of daily chemical products, particularly relates to bacteriostatic foot powder and a preparation method thereof, and provides bacteriostatic foot powder. The bacteriostatic foot powder comprises the following components in percentages by weight: alkannin 1-3%, cinnaldehydrum 2-4%, berberine 1-5%, patchouli alcohol 2-4%, menthol 1-2%, alkyl glycoside 2-6%, tea saponin 0.5-1.5%, dipotassium glycyrrhizinate 1-3%, a deodorant 2-10%, ethanol 5-25% and corn flour 36.5-82.5%. The bacteriostatic foot powder not only can effectively improve foot hyperhidrosis and prevent and treat foot odour, but also can inhibit bacteria, diminish inflammation and resist allergy, and effectively treats tinea pedis. Meanwhile, the provided bacteriostatic foot powder is gentle in property, and is safe and non-irritant.

The invention discloses selenium-substituted benzodipyrene imide and synthesis method as well as application to a solar battery. The synthesis method is characterized in that: perylenetetracarboxydianhydride is taken as a raw material for preparing anhydride perylene bisimide dimer anhydride through butyl tetracarboxy perylene; different alkyl chain-substituted and selenium-substituted benzodipyrene imide can be prepared easily and simply through an anhydride intermediate. The acceptor molecule has superior photoelectric property, can be applied to organic solar battery, and has simple requirement on device structure, and the photoelectric conversion efficiency under the condition of no optimizing manners such as solvent additive, thermal annealing and the like can reach up to 5.17 percent.

A polysiloxane includes a structural unit in which a functional group represented by a general formula of

(in the formula, each of R¹, R², and R³ is independently an alkyl group with a carbon number of 1 or more and 6 or less and m is an integer of 2 or more and 6 or less), an ester bond or an amide bond, a spacer, and a silicon atom are bonded sequentially.

The invention relates to the field of pharmaceutical preparation and the technical field of biological medicine, and particularly relates to a functional nano-carrier with a escape capability of lysosome and a preparation method of same. The functional nano-carrier is characterized in that the functional nano-carrier comprises arginine alkyl alcohol ester, medicament, carrier material and water. The functional nano-carrier has intense destructive effect on biological films in the condition of low pH value, so that the functional nano-carrier can rapidly destroy lysosome films in the conditionof acidic condition and rapidly escape into cytoplasm, is prevented from being destroyed by various enzymes and acid environment in lysosome, and is good for the exerting of the drug efficacy.

The invention discloses a cationic macromolecular proteolipid gene medicine carrier, a preparation method and an application, wherein the cationic macromolecular proteolipid gene medicine carrier is a macromolecular transferrin liposome prepared by transferrin-long-chain alkyl quaternary ammonium salt and a lipid ingredient in a mass ratio of (0.05 to 20): 1. The result of a gene transfection experiment indicates that the gene transfection efficiency of the macromolecular transferrin liposome in 293T cells, NIH-3T3 cells, liver cancer Huh-7 cells, SMMC-7721 cells, lung cancer A549 cells is equivalent to the gene transfection efficiency of a positive control, namely a cationic liposome Lipofectamine TM2000. The system of the cationic macromolecular proteolipid gene medicine carrier is good in biocompatibility, low in cytotoxicity, and capable of being used as an excellent non-viral gene medicine delivery carrier.

A polymer film comprises a polymer composition containing (A) a cyclic olefin polymer containing an olefin unit having a C_3-10alkyl group as a side chain thereof and (B) a chlorine-containing polymer. The chlorine-containing polymer (B) may comprise a vinylidene chloride-series polymer. The ratio of the chlorine-containing polymer (B) relative to 100 parts by weight of the cyclic olefin polymer (A) may be 0.5 to 60 parts by weight. The film has a moderate releasability from an electrolyte membrane and an electrode membrane of a polymer electrolyte fuel cell and a moderate adhesion to the electrolyte membrane and the electrode membrane and can adhere to a commonly-used substrate film without interposition of an adhesive layer such as an easily adhesive layer. The film is thus suitable as a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell.

The invention relates to a synthetic method of methylene ether urushiol hydroxamic acid derivatives with (histone deacetylase) HDAC inhibitory activity. Unsaturated urushiol is taken as a raw material, and oxidative polymerization of the urushiol is blocked through an etherification reaction; hydroxamic acid groups are introduced to tail parts of side chains of the urushiol thorugh a Diels-Alder reaction, a hydrolysis reactions, a hydroxylation reaction and the like; and in addition, different pharmacological groups such as nitro groups, hydroxyl groups and the like are introduced into benzene rings or alkyl chains, so that three methylene ether urushiol hydroxamic acid derivatives are synthesized. The three compounds can be well combined with active pockets of HDAC, can form stable hydrogen bonds with residual groups of the HDAC for interaction, and can be stably chelated with Zn<2+> at the bottom of the active pockets, so that good HDAC inhibitory activity is achieved. The median inhibitory concentrations (IC50) of the three compounds on HDAC 2 and HDAC 8 are equivalent to the IC50 value of an HDAC inhibitor SAHA approved by the Food and Drug Administration (FDA). The three compounds can be applied to clinical antitumor drugs and have extremely high additional values, and the synthetic method can be a novel technology for clinically developing novel phenol-based HDAC inhibitors.

The invention discloses an electroplating method for a watch shell. Electroplating liquid adopted by the electroplating method comprises the following components: 45-49 g/L of tin methanesulfonate, 35-39 g/L of copper pyrophosphate, 210-220 g/L of potassium pyrophosphate, 43-47 g/L of calcium chloride, 32-34 g/L of tin chloride, 15-25 g/L of disodium hydrogen phosphate, 6-8 mL/L of polyethylene glycol, 3-5 mL/L of polyethylene glycol alkyl alcohol ether, and 4-6 mL/L of gelatin. The electroplating method comprises the following steps: the pH value is 7.5-8.5; the current density is 3-5 A/dm2; the temperature is 35-45 DEG C; and the time is about 15-25 minutes.

The invention relates to a slow release type photocatalyst bleaching cleaning aerosol. The aerosol comprises following raw materials in parts by weight: 3 to 5 parts of sodium lauroyl sarcosinate, 0.1to 0.2 part of disodium EDTA, 0.1 to 0.3 part of iso-tridecanol polyoxyethylene ether, 0.5 to 0.8 part of alkyl glycoside, 1 to 1.5 parts of attapulgite, 0.3 to 0.5 part of polysiloxane carboxyl betaine, 0.2 to 0.3 part of cyclodextrin, 0.01 to 0.03 part of Tianlaili photocatalyst, 0.01 to 0.02 part of laccase, 0.2 to 0.5 part of essence, 0.01 to 0.02 part of nano chitin, 80 to 90 parts of deionized water, and 5 to 10 parts of propane and butane. The provided aerosol is convenient to use, reduces the labor strength for consumers, is non-corrosive, will not damage the environment, is an environmentally-friendly and healthy detergent, and has a wide application prospect and market prospect.

The invention discloses water-based plastic ink which is prepared from the following raw materials in parts by weight: 65-85% of water-soluble acrylic resin, 15-25% of water-based color paste, 10-20% of deionized water and the balance of ammonia water, wherein the water-soluble acrylic resin is prepared from the following raw materials in parts by weight: 12-18 parts of methyl methacrylate, 12-18 parts of butyl acrylate, 4-8 parts of acrylic acid, 1.5-2.5 parts of hydroxyethyl acrylate, 0.5-1 part of diacetone acrylamide, 33-46 parts of propylene glycol methyl ether acetate, 16-23 parts of dimethyl formamide, 3-6 parts of polyoxyethylene ether, 1-3 parts of polyoxyethylene glycol alkyl ester, 0.5-2 parts of dimethylaminoethanol, 0.5-1 part of azodiisobutyronitrile, 0.5-0.8 parts of adipic acid dihydrazide and 80-160 parts of distilled water. According to the water-based plastic ink disclosed by the invention, the water-soluble acrylic resin is taken as a vehicle, so that the water-based plastic ink can maintain good coating colorability and good adhesive force on a PE/PP (polyethylene/polypropylene) film.

The invention discloses a high-performance polypropylene fiber oiling agent, comprising cetanol potassium sulfate, polyethylene glycol (600) olein, mineral oil, and alkyl alcohol amide. The invention has the advantages of reasonable formula, good effect, and low production cost.

The invention discloses a rustproof antibacterial water-based cutting fluid and a preparation method thereof. The rustproof antibacterial water-based cutting fluid is characterized by being prepared from the following raw materials in parts by weight: 2-3 parts of ricinoleic acid, 1-2 parts of vinyl succinic acid, 3-4 parts of dialkyl phosphorodithioic acid, 4-5 parts of simethicone, 0.2-0.3 part of garlic oil, 1-2 parts of alkyl succinate sodium sulfonate, 1-2 parts of urotropin, 2-3 parts of ammonium molybdate, 5-6 parts of coalescing agent and 260 parts of water. The rustproof antibacterial water-based cutting fluid has an extremely good antibacterial property and can be stored for two years without deterioration. The rustproof antibacterial water-based cutting fluid has good lubrication property, cooling property, washing property and rustproof performance, also has a rust removal function so as to protect a cutter, prolong the service life of the cutter and ensure that a processed work piece cannot to be rusted within five days, is benefit for the work piece to enter the next procedure, and causes no bad influences on human body and the work environment in operation.