1436 results about "Diphenyl ether" patented technology

Antimicrobial compositions, especially those useful when applied topically, particularly to mucosal tissues (i.e., mucous membranes), including an antiseptic selected from the group consisting of halogenated phenols, bisphenols, diphenyl ethers, anilides and derivatives thereof, and combinations thereof. The compositions can also include an enhancer component, a surfactant, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

Disclosed are a pyrazole amide compound containing diphenyl ether as represented by formula I and/or formula II, application thereof in the prevention and treatment of rice sheath blight and cucumber powdery mildew, and pesticide composition containing the compound. The pyrazole amide compound of the present invention containing diphenyl ether as represented by formula I and/or formula II, and a bactericide containing the pyrazole amide compound as an active ingredient have good prevention and treatment effects on rice sheath blight and cucumber powdery mildew.

The invention discloses finishing liquor for realizing antibiosis of fabrics and a preparation method of the finishing liquor. The finishing liquor consists of raw materials including, by weight, 0.1 part of chitosan, 0.5 part of DC-5700, 0.2 part of nanometer silver antibacterial agent, 1 part of 3-chloropropylmethyldimethoxysilanes, 0.3 part of 2, 4, 4'-trichlorine-2 hydroxy-diphenyl ether, 3 parts of PEG (polyethylene glycol)-40 hydrogentated castor oil, 0.3 part of water-soluble wool oil, 10 parts of ethanol and 84.6 parts of RO (reverse osmosis) water. Compared with other bacteriacide, the antibacterial agent has high safety and a good long-term sterilizing effect, and does not affect processability of materials and other application performances. The finishing liquor for the fabrics not only has an antibacterial effect, but also has a special effect of being capable of guaranteeing that finished fabrics can keep original softness. In addition, the finishing liquor for the fabrics is temperate, is not irritative, does not contain formaldehyde, is environment-friendly, and does not have any side effects when used for a long time.

The invention belongs to the technical field of pesticide synergism, and in particular relates to a synergistic weeding composition containing 1-(2-chloro-3-(3-cyclopropyl-5-hydroxyl-1-methyl-1H-pyrazole-4-carbonyl)-6-trifluoromethylphenyl) piperidine-2-ketone or a salt and ester thereof. The synergistic weeding composition contains a weeding effective quantity of active ingredients A and B, wherein A is a compound shown in the specification or a salt thereof, C1-C4 carboxylic ether, and benzoate; and B is selected from 1) phenoxy carboxylic acids, 2) pyridine carboxylic acids, 3) benzoic acids, 4) nitriles, 5) triazolinones, 6) diphenyl ethers, 7) thiadiazoles, 8) pyrimidine diones, 9) amides, 10) sulfonylureas, 11) slalfamides, 12) pyrazoles, 13) thiocarbamates, 14) bentazone and the like. The composition can effectively prevent and remove grassy weeds and broadleaf weeds in a wheat paddock, and has the characteristics of expanding a weeding spectrum, being obvious in synergistic effect, reducing the application amount, being safe to crops, and the like.

The invention relates to a medical ultrasonic coupling agent having the functions of disinfection and sterilization. The weight percentage of components are that: 2,4,4'-trichloro-2'-hydroxy-diphenyl ether 0.2-2 percent, glycerine 4-7 percent, crosslinking polyacrylic acid resin 0.6-1.5 percent, NaOH 0.8-1.2 percent and distilled water 89.0-94.0 percent. The preparation steps are that: step one, the 2,4,4'-trichloro-2'-hydroxy-diphenyl ether and the glycerine are weighed by weight percentage; the 2,4,4'-trichloro-2'-hydroxy-diphenyl ether is completely dissolved in the glycerine solution and then remained; step two, the crosslinking polyacrylic acid resin which is weighed by weight percentage is dissolved in the distilled water; the solution obtained in step one is stirred and provided with the solution obtained in step two, and then the distilled water is complemented and NaOH solution is added, thereby obtaining gel. The invention can disinfect and sterilize to an ultrasonic probe in the inspection process so as to reduce cross infection; the invention has simple preparation process and no environmental pollution.

A polycarbonate resin has a constitutional unit expressed by the following general formula (I):

A₁ represents an alkyl group which is substitutional or nonsubstitutional, and an aryl group which is substitutional or nonsubstitutional. A₂,A₃,A₄,A₅,A₆ and A₇ each represent one of a hydrogen atom, a halogen atom, an alkyl group which has 1 to 6 carbon atoms and is substitutional or nonsubstitutional.

The invention discloses a haloxyfop-r-methyl-containing herbicide composition. The haloxyfop-r-methyl-containing herbicide composition is utilized for controlling gramineous weeds, broad-leaved weeds and sedge weeds in broad-leaved crop fields. The haloxyfop-r-methyl-containing herbicide composition comprises active components of 1, a compound A, wherein the compound A is haloxyfop-r-methyl, and 2, a herbicide mixed synergistic active component B, wherein the herbicide mixed synergistic active component B is one or more of diphenyl ether herbicides, sulfonylurea herbicides or benzothiazine dione herbicides. A weight ratio of haloxyfop-r-methyl to the herbicide mixed synergistic active component B is (1 to 30%): (0.5 to 50%). The haloxyfop-r-methyl-containing herbicide composition can be processed into all realizable dosage forms. The haloxyfop-r-methyl-containing herbicide composition can be widely utilized for controlling gramineous weeds such as barnyard grass, green bristlegrass, alopecurus aequalis, crabgrass, annual bluegrass and moleplant seed, broad-leaved weeds such as purslane, solanum nigrum, cocklebur, bindweed, chenopodium album and goosegrass herb, and sedge weeds in soybean and peanut fields, wherein the broad-leaved weeds are difficult to be controlled. The haloxyfop-r-methyl-containing herbicide composition has the characteristics of wide weed control spectrum, safety on crops, and high efficiency.

The invention relates to a moisture-absorbing and perspiring anti-bacterial fabric and a preparation technology thereof. The moisture-absorbing and perspiring anti-bacterial fabric is blended and weaved by the following raw materials in parts by weight: 40 to 80 parts of bamboo fibers, 40 to 80 parts of long staple, 10 to 30 parts of ramie, 10 to 30 parts of coolmax fibers, 10 to 20 parts of corn fibers, 10 to 20 parts of Delight fibers, and 5 to 20 parts of Tancel, and then is treated by anti-bacterial finishing liquid; the anti-bacterial finishing liquid comprises 5 to 10 parts of chitosan, 5 to 10 parts of silk fibroin, 0.5 to 3 parts of butyl ricinoleate sodium sulfate, 0.5 to 3 parts of lemon acid, 0.5 to 2 parts of butyl methacrylate, 5 to 8 parts of dodecyl diphenyl ether sodium disulfonate, 5 to 10 parts of hydroxypropyl methyl cellulose, 5 to 10 parts of polyhexamethylene biguanidine, 5 to 15 parts of organosilicon quaternary ammonium salt, 3 to 8 parts of dodecyl trimethyl ammonium chloride, and 5 to 10 parts of water-based polyurethane. The moisture-absorbing and perspiring anti-bacterial fabric has the advantages that the anti-bacterial property is higher, the moisture-absorbing, perspiring, anti-pilling and air-ventilation properties are realized, the softness is realized, and the abrasion is resisted; the moisture-absorbing and perspiring anti-bacterial fabric is particularly suitable for being applied to the fields of underwear, overwear, sportswear and bedding articles.

The invention discloses a method for preparing a carbide film by carbonizing graphene reinforced polyimide resin, and relates to a method for preparing a carbide film. The method solves the technical problems of high carbonizing temperature, high energy consumption, long carbonizing period and low carbonizing rate and low strength of the carbide film in the conventional method for preparing the carbide film. The method comprises the following steps of: 1, adding 4,4'-diamino diphenyl ether (ODA) and 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) into N,N-dimethyl acetamide (DMAC), and performing mechanical stirring to obtain a polyamide acid (PAA) solution; 2, adding graphene into the PAA solution, and performing in-situ polymerization reaction to obtain a solution A; 3, spreading the solution A on a clean glass plate, heating to the temperature of 60 DEG C and preserving the heat for 2 hours, heating to the temperature of 100 DEG C and preserving the heat for 1 hour, heating to the temperature of 200 DEG C and preserving the heat for 1 hour, heating to the temperature of 300 DEG C and preserving the heat for 1 hour, and thus obtaining a composite film; and 4, carbonizing, naturally cooling to room temperature, and thus obtaining the carbide film. The carbide film has excellent mechanical properties; and because the adding proportion of the graphene is increased, the mechanical properties of the carbide film are improved, the specific capacitance of the graphene is also improved, and the carbide film is suitable to be used as an electrode material.

The invention discloses a method for rapidly detecting polybrominated diphenyl ether residue in a sample, particularly in textiles. The method is characterized by comprising the following steps: (1) the sample is crushed, dipped in base solution and ultrasonically extracted in water bath, and solid phase microextraction is employed to concentrate a target compound; and (2) polybrominated diphenyl ether is qualitatively and quantitatively determined by gas chromatography-mass spectrometry after thermal desorption. The method helps effectively solve the problem of matrix effect that fabric fibers have no solvent extraction, obtains a satisfactory result for the analysis of a selected target compound, has the advantages of low organic solvent consumption, rapid extraction speed, less interference from impurities, high sample recovery rate and the like, and can be applicable to rapidly detecting polybrominated diphenyl ether flame retardant residue in textiles.

The invention discloses a disinfection sterilization medical ultrasonic coupling medium with the bactericidal function and used in the ultrasonic detection and treatment of skin and cavitary mucosa and a preparation method of the coupling medium, wherein, the ultrasonic coupling medium comprises propylene glycol, de-ionized water and one viscosity modifier of the hydroxy ethyl cellulose, carbomer and hydroxy propyl cellulose. The coupling medium further comprises a fungicide of 0.05 to 0.15 percent and the constituents of the fungicide are any one of polyhexamethylene biguanide, benzalkonium chloride, benzalkonium bromide, chlorhexidine acetate, trichlorobenzene phenoxy diphenyl ether and nanometer silver or any combination of the olyhexamethylene biguanide, the benzalkonium chloride, the benzalkonium bromide, the chlorhexidine acetate, the trichlorobenzene phenoxy diphenyl etherand, and the nanometer silver; the preparation method used for preparing the ultrasonic coupling medium is as follows: dispersing the hydroxy ethyl cellulose in the propylene glycol, stirring and dispersing the hydroxy ethyl cellulose by adding enough water, heating to 75 to 80 DEG C, preserving the heat for 30 minutes to cool the hydroxy ethyl cellulose and the propylene glycol to 45 DEG C, adding the fungicide to stir and cool the fungicide, the hydroxy ethyl cellulose and the propylene glycol to obtain the filled coupling medium. Tests show that the products of the coupling medium have fast and long sterilization effect and meet the requirements of various related standards.

The present invention provides a novel process for preparation of bisphosphonic acid derivatives or pharmaceutical acceptable salt thereof, by reacting carboxylic acid having structural formula (II) with phosphorous acid and a halophosphorous compound, wherein halophosphorous compound is selected from the group comprising of PCl₃, PCl₅, POCl₃, PBr₃, POBr₃, and PBr₅ in presence of diphenyl ether.

The invention relates to a corona-resistant polyimide film containing high-concentration nano metal oxide, which comprises the following main components: benzenetetracarboxylic anhydride, 4, 4'-diamino diphenyl ether and nano-scale aluminum oxide, wherein the particle size of the nano-scale metal oxide is in the range from 30nm to 50nm. The film provided by the invention has the following outstanding advantages that a novel coupling agent is synthesized and is compounded with titanate coupling agent NDZ-130 to conduct surface modification on prepared alpha-Al2O3, thus the modified nano-particles can be steadily and uniformly dispersed in the substrate polyimide film with relatively high mass percentage (can reach 30wt%). By adoption of the above novel technical scheme of the invention, the technical problem that high-concentration nano-metal oxide is very difficultly doped uniformly in the corona resistant polyimide film according to the prior art is solved well, and meanwhile the mechanical strength of the film is kept from dropping.

The invention relates to a gemini anion surfactant and a preparation method thereof. The surfactant has two synthesis routes: one is alkylated reaction which uses bromoalkane and diphenyl ether as raw materials to produce intermediate alkyl diphenyl ether under the catalysis of lewis acid AlCl3; the other is phase transfer catalytic reaction which uses alkylphenol and oxygen ether vinylicus as raw materials to produce alkylphenol oxygen ether vinylicus under the catalysis of the phase transfer catalyst of hexadecyl trimethyl ammonium bromide. Sulfonation and neutralization are conducted to the produced intermediate to acquire Gemini anion surfactant. With good surface activity, the surfactant has good synergistic effect with other surfactants, and can be widely applied in tertiary recovery.

The invention discloses a corona-resistant polyimide/silica nano composite film and a preparation method thereof. The method comprises the following steps: preparing polyamide acid with carboxyl on a side chain by using a diamine monomer 3,5-diaminobenzoic acid with carboxyl, diphenyl ether diamine and benzenetetracarboxylic anhydride; and adding tetraethyl orthosilicate, so as to prepare the polyimide/silica nano composite film by a sol-gel method and a hot amination method in situ. The surfaces of nanosilica particles are closely combined with polyimide by a polymer and silica in the composite film under the action of a chemical bond and a hydrogen bond; even distribution of the silica in polyimide matrix is realized; the silica does not migrate and is stably dispersed. The polyimide/silica nano composite film provided by the invention has the characteristics of high electrical resistivity, low breakdown strength, small dielectric constant, long corona-resistant time and the like. The method is simple and convenient to operate; even and stable dispersion of the silica in the polyimide also can be achieved.

The invention discloses an inflaming retarding thermoplastic polyurethane elastic body which comprises the following components by weight percentage of: 60-80% of polyester thermoplastic polyurethane, 10-30% of halogen-free fire retardant, 1-10% of inflaming retarding synergist, 1-10% of chain extender, 0.1-2% of antioxidant and less than 5% of non-inflaming-retarding additive. According to the inflaming retarding thermoplastic polyurethane elastic body disclosed by the invention, the good inflaming retarding performance can be achieved and relatively good mechanical performances of previous high tensile strength, cracking elongation at break and the like of a TPU (Thermoplastic Polyurethane) raw material; the inflaming retarding thermoplastic polyurethane elastic body has the advantages of good wear resistance, tearing resistance, hydrolysis resistance and anti-ageing performance; and the inflaming retarding thermoplastic polyurethane elastic body does not contain halogens and heavy metal and particularly does not contain lead, cadmium, mercury, hexavalent chromium heavy metal, as well as poly-brominated diphenyl ether and poly-brominated biphenyls, so that the European Union RoH2.0 instruction requirements are met.

The invention relates to a pretreatment method for purifying dioxin, polychlorinated biphenyl and polybrominated diphenyl ether in extract liquor. Purifying columns which respectively comprise a compound silicagel column, an alkaline aluminium oxide column and a Florisil column are arranged on an extraction module of a full-automatic solid-phase extractor, wherein fillers in each compound silicagel column comprise the following materials from bottom to top in sequence: silica gel, alkaline silica gel, silica gel, acidic silica gel and anhydrous sodium sulfate, and an eluent is normal hexane; fillers in the alkaline aluminium oxide column comprise the following materials from bottom to top in sequence: alkaline aluminium oxide and anhydrous sodium sulfate, and an eluent is mixed liquor of normal hexane and dichloromethane; fillers in the Florisil column comprise the following materials from bottom to top in sequence: Florisil and anhydrous sodium sulfate, the eluent is divided into two types according to the sequence of the steps, the eluent in the first step is the mixed liquor of normal hexane and dichloromethane, and the eluent in the second step is dichloromethane; and among all purifying columns, the eluents are transferred to an online concentrator for evaporation and concentration, and then are transferred to the next purifying column for purifying and treating.

The invention relates to a compound shown as formula (I). R1 is selected from C1-20 aliphatic straight chain or branched chain alkyl or C6-30 aryl radical; R2 is selected from C4-40 substituted or unsubstituted aromatic amino, carbazolyl, dibenzothienyl, indolyl or dibenzofuryl; L is selected from the single bond, C4-40 substituted aromatic amine, C4-40 substituted carbazole, C4-40 substituted indole, C4-40 substituted dibenzofuran, C4-40 substituted dibenzothiophene, substituted or unsubstituted diphenyl ether, O, N or S; R3-R6 is independently selected from H atom, C1-20 of aliphatic straight chain or branched chain alkyl or C6-30 aromatic groups, or a ring formed by connecting two adjacent groups; and n is selected from an integer of 2-5. The invention also protects the application of the compound in organic light emitting devices, especially as a hole transport / injection material in OLED devices.

The invention relates to a flame retardant-type waterproof sealing hot-melt pressure-sensitive adhesive. The flame retardant-type waterproof sealing hot-melt pressure-sensitive adhesive comprises butyl rubber 268, brominated butyl rubber, polyisobutene B50, polyisobutene B12, octyl phenolic resin, thermoplastic elastomer SBS (Styrene Butadiene Styrene), mineral oil, deca-brominated diphenyl ether, antimonous oxide, aluminium hydroxide, zinc oxide, an antioxidant 1010 and carbon black. The hot-melt pressure-sensitive adhesive with high flame retardant property is obtained by selecting the resin with very good waterproof sealing property and the rubber system in combination with a flame retardant with the excellent synergistic flame retardant property according to a formula system while the waterproof sealing property and the bonding strength of the hot-melt pressure-sensitive adhesive are ensured. The prepared pressure-sensitive adhesive has very high bonding strength at the temperature of 40-80 DEG C, excellent insulation property, waterproof property, flame retardant property and sealing property and can be used for producing waterproof sealing tapes, wrapping wire and cable insulations, sealing pipelines and the like.

A process of preparing 3ú¼4'-diamino diphenyl ether. It comprises: taking nitrodiphenyl ether as the raw material, hydrazine hydrate as the reducing agent, reducing in the presence of a catalyst, obtaining 3ú¼4'-diamino diphenyl ether at a low pressure. The invention overcomes unsafe factors in the method of high-pressure hydrogenation, avoid the step of highpressure distillation, and has mild reactive conditions. The product has good purity. So the invention is suitable for industrial production.

The present invention discloses a kind of polyimide fiber and its preparation process. The preparation process includes the following steps: 1. reacting 4, 4í»-diamino diphenyl ether and pyromellitic dianhydride in the weight ratio of 1 to 1.02 with N, N-dimethyl acetylamide solution of 15-20 % concentration at 0-5 deg.c to obtain polyamic acid solution; 2. wet spinning the polyamic acid solution and imidation reaction of the polyamic acid fiber to obtain polyimide fiber through dewatering and cyclization; and 3. mixing the polyimide fiber with acetic anhydride and triethylamide, flushing with acetone, soaking and drying to obtain the polyimide fiber. The present invention has positive effects of optimized synthesis condition of spinning solution, prolonged solidification period of initially formed fiber in the solidification bath, and fiber with ideal mechanical performance.

The invention relates to a polyimide film material capable of serving as a flexible transparent conducting film substrate and a preparation method thereof. Polyimide is obtained by undergoing a low-temperature solution condensation reaction between alicyclic dianhydride and fluorine diphenyl ether-containing aromatic diamine, and aminating hot imide. The polyimide film material has the glass-transition temperature between 250 DEG C and 300 DEG C, a very light film color, the ultraviolet cutoff wavelength between 280 nanometers and 330 nanometers, high transparency in a visible light region (between 400 nanometers and 700 nanometers), the light transmission rate of over 90 percent at the position of 450 nanometers and high machining performance, so that the film material can be taken as a substrate material of a flexible transparent conducting film.

The invention provides an environment-friendly water-supply hose with antibacterial function, which comprises materials of PVC resin, a plasticizing agent, a heat stabilizer, an inorganic-organic composite antibacterial agent and a lubricating agent, wherein the average degree of polymerization of the PVC resin is between 900 and 1,300; the water-supply hose comprises the following components in proportion by mass: 100 portions of the PVC resin, 40 to 70 portions of the plasticizing agent, 2 to 4 portions of the heat stabilizer, 0.1 to 0.4 portion of the inorganic-organic composite antibacterial agent, 0.2 to 0.6 portion of the lubricating agent; and the inorganic-organic composite antibacterial agent comprises the following components in portion by mass: 90 to 120 portions of tourmaline powder, 20 to 35 portions of zinc oxide, 10 to 20 portions of nano silver, 45 to 55 portions of zeolite powder, and 10 to 15 portions of 2,4,4'-trichloro-2'-hydroxy diphenyl ether. The environment-friendly water-supply hose can effectively inhibit the growth of microorganisms, has good antibacterial effect, accords with the safety standard requirements, and has excellent environmental protection performance.

Disclosed is an epoxy resin composition that cures with high thermal conductivity and low thermal expansion and is capable of dissipating heat efficiently and displaying good dimensional stability when applied to encapsulation of semiconductor devices or to printed wiring boards. The epoxy resin composition is formulated from epoxy resins 50 wt % or more of which is a diphenyl ether type epoxy resin represented by the following general formula (1)

(wherein n is a number of ≧0 and m is an integer of 1-3) and curing agents 20 wt % or more of which is a diphenyl ether type phenolic resin represented by the following general formula (2)

(wherein n is a number of ≧0 and m is an integer of 1-3).