103 results about "Decene" patented technology

Processes for making aviation fuels include a step of forming a C16− olefin stream by oligomerizing a mixture of decenes with a C6− alpha-olefin or by subjecting the mixture of decenes and a C8− alpha-olefin to metathesis. The C16− olefin stream is then hydrogenated to form C16− paraffins, and these C16− paraffins can be used to form an aviation fuel. Particular C11-C16 olefin compositions and paraffin compositions prepared by these processes also are described.

The invention discloses a high-barrier packaging material and a preparation method thereof, and relates to the technical field of packaging materials. When the high-barrier packaging material is prepared, 5, 12-tetrabenzoquinone and tetrabromomethane react to prepare an intermediate; reacting the intermediate with 4-(benzyl acrylate) phenylboronic acid to obtain a stilbene-based cross-linking agent; the preparation method comprises the following steps: carrying out a reaction on polyethylene glycol terephthalate, 3-amino propylene and allyl tri (trimethylsiloxy) silane to prepare functional polyester; reacting the pre-modified nano mica sheet with methyl iodide to obtain a modified nano mica sheet; the preparation method comprises the following steps: uniformly mixing functional polyester, a stilbene-based cross-linking agent, a modified nano mica sheet and 7-methyl-1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, and carrying out blow molding to obtain the high-barrier packaging material. The high-barrier packaging material prepared by the invention has excellent flame-retardant, antibacterial, anti-aging and high-barrier properties.

The invention relates to a core-shell polyacrylamide nano flocculant as well as a preparation method and application thereof, the flocculant is of a core-shell structure, the shell is a water-soluble polyacrylamide polymer, and the core is cross-linked poly (p-hydroxystyrene); the preparation method comprises the following steps: preparing a poly (p-tert-butoxystyrene-b-polyacrylate) block polymer or a poly (4-acetoxystyrene-b-polyacrylate) block polymer; carrying out hydrolysis and self-assembly on poly (p-tert-butoxystyrene) or poly (4-acetoxystyrene) on the block polymer at the same time in the presence of a trifluoroacetic acid hydrolysis reagent by utilizing a modification induced self-assembly process, and carrying out in-situ crosslinking on poly (p-hydroxystyrene) obtained by hydrolysis by using formaldehyde; and in the presence of a 1, 5, 7-triazabicyclo [4.4. 0] decene-5-ene catalyst, modifying the polyacrylate block by using an amination reagent to prepare the flocculant. Compared with the prior art, the flocculant provided by the invention has the advantages of controllable morphology, stable cross-linkable property and the like.

The application discloses a high-efficiency paint-removing liquid, a preparation method thereof and a wet wipe, wherein the high-efficiency paint-removing liquid comprises, in terms of mass fractions, an alcohol ether solvent, N,N-dimethyl-9-decenamide, an emulsifier, a penetrating agent, a humectant, limonene and a preservative; the alcohol ether solvent is used to improve the polarity of the whole system, can soften and swell the paint film well, and reduce the adhesion of the paint film to a base material; the N,N-dimethyl-9-decenamide is used as a main surface-active paint remover, and the penetrating property of the N,N-dimethyl-9-decenamide can make the paint molecular chain break, so that the paint molecular structure is decomposed; the alcohol ether solvent and the N,N-dimethyl-9-decenamide can cooperate to make the paint layer easy to peel off; the penetrating agent is further used to enhance the emulsification and dispersion of the paint, help the softened and decomposed paint particles stably disperse in the solution, prevent the paint particles from being redeposited, and facilitate subsequent cleaning and removal; and the limonene is used as a complexing agent and cooperates with other components to realize the high-efficiency and thorough paint-removing effect.

The invention discloses a method for removing the fishy smell of chicken gizzards through multi-bacterium combined fermentation, and belongs to the technical field of poultry byproduct processing. According to the method disclosed by the invention, the chicken gizzards are subjected to fishy smell removal treatment by compounding the saccharomycetes Y4-1 and the bacillus SB. After fishy smell removal treatment, the content of key fishy smell substances including 1-octylene-3-alcohol, octanol, hexanal, nonanal and heptanal is greatly reduced, the total content is reduced from 25.15 mu g / g to 6.02 mu g / g and is reduced by 76.06%, heptanol, geranyl acetone, methyl heptanoate, methyl caprylate, glycerol monooleate, trans-2-decenal, 2-undecenal and other substances are completely removed, and the content of the key fishy smell substances is reduced by 76.06%. Meanwhile, elegant aroma components such as benzaldehyde and phenylacetaldehyde are generated. In conclusion, the saccharomycetes Y4-1 and the bacillus SB are compounded to remove fishy smell, so that the fishy smell substances of the chicken gizzards can be effectively removed, the flavor of the chicken gizzards can be further improved, and the edible value of the chicken gizzards is improved.

The application discloses a use method and application of a vegetable bud inhibition agent, and belongs to the technical field of plant body or local preservation and plant growth regulator. The application uses furan sulfide compounds as a bud inhibition agent to perform fumigation treatment on rhizome vegetables, so that the bud inhibition effect of the rhizome vegetables can be effectively delayed. The product has good bud inhibition effect, and the bud inhibition effect is comparable to that of 3-decene-2-butanone and menthol essential oil which are commercially used. The method has low bud inhibition cost, and can be used as a green alternative technology of traditional fumigation agents such as chloranil. The furan sulfide compounds as active ingredients are commonly used as food essence and spices, belong to food additives, and are widely applied in the food industry, are safe to use, simple to operate and low in cost.

The invention relates to a preparation method of methyl jasmonate, (E)-4-oxodec-7-olefine aldehyde is used as a raw material, in the presence of an ionic liquid, the methyl jasmonate is prepared through a ring closing reaction, an addition reaction and a deacidification reaction, and complex post-treatment is not needed in the reaction process. The preparation method is simple in process steps, the ionic liquid can catalyze the reaction at the same time, the reaction yield and the product purity are improved, the reaction time is shortened, the reaction condition is mild, the reaction can be carried out only at room temperature, and the method is more suitable for industrialization. In addition, the methyl jasmonate prepared by the method is high in purity, can be directly used as a fertilizer additive, and does not need further purification treatment.

The present application relates to the technical field of chemical essence and flavor, and particularly relates to a decenoic acid ester compound, a preparation method and application thereof, and comprises the following steps: (1) preparing 2-(4-methyl-benzylidene) heptanal: under the condition of an inorganic alkaline reagent, p-methylbenzaldehyde and n-heptanal are subjected to aldol condensation reaction to synthesize 2-(4-methyl-benzylidene) heptanal; (2) preparing 2-(4-methyl-benzylidene) heptyl alcohol: under the condition of a reducing agent, 2-(4-methyl-benzylidene) heptanal is reduced to 2-(4-methyl-benzylidene) heptyl alcohol; (3) preparing 5-decenoic acid 2-(4-methyl-benzylidene) heptyl alcohol ester: under the catalysis of an acid, 5-decenoic acid and 2-(4-methyl-benzylidene) heptyl alcohol are subjected to esterification to synthesize 5-decenoic acid 2-(4-methyl-benzylidene) heptyl alcohol ester. The compound in the present application has jasmine aroma and milk aroma, has elegant aroma, has long-lasting aroma, and has important use in the field of daily chemical flavoring.

The invention discloses a method for recycling carbon fibers in waste wind power blades. The method comprises the following steps: preparing an organic alkali solution; immersing the pretreated dry waste wind power blade in the prepared organic alkali solution, and soaking for 2-4 hours at normal pressure and 150-190 DEG C; at normal pressure and normal temperature, firstly rinsing the obtained carbon fiber crude product with acetone for 3-4 times, and then soaking the rinsed carbon fiber crude product in acetone for 12-24 hours; taking out the carbon fiber, washing with deionized water for 3-6 times, and drying; wherein the organic alkali solution is prepared from 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene and phenethyl alcohol or ethylene glycol. By the adoption of the method, the 100% recovery rate of the carbon fibers in the waste wind turbine blade can be achieved, the recovered carbon fibers are uniform and consistent, the surface structure is complete, resin residues are avoided, 92.78% of the mechanical property of original fibers can be reserved, and the recycling value is very high.

The invention relates to a method for catalytically synthesizing 2, 4-disubstituted phthalazine 1-(2H)-ketone from 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene. According to the method, 3-alkenyl phthalide and hydrazine compounds are taken as initial raw materials, TBD which is low in price and easy to obtain is taken as a catalyst, sodium tert-butoxide is taken as alkali, reaction is carried out at room temperature, and the 2, 4-disubstituted phthalazine 1-(2H)-ketone is obtained at high yield. According to the method, the cheap TBD is adopted as the catalyst, the reaction is carried out under the room temperature condition, and compared with a traditional reaction strategy, the economic cost is greatly reduced, the steps are simple, heating and a transition metal catalyst are not needed, operation is convenient, the yield is high, the cost is low, and good economic benefits are achieved.

Processes for making aviation fuels include a step of forming a C16- olefin stream by oligomerizing a mixture of decenes with a C6- alpha-olefin or by subjecting the mixture of decenes and a C8- alpha-olefin to metathesis. The C16- olefin stream is then hydrogenated to form C16- paraffins, and these C16- paraffins can be used to form an aviation fuel. Particular C11-C16 olefin compositions and paraffin compositions prepared by these processes also are described.

The present invention provides a (6Z)-6-tridecenyl metal compound (1) wherein M1 represents Li or MgZ1, and Z1 represents a halogen atom or a (6Z)-6-tridecenyl group; also provided is a method for preparing a compound (1) comprising the steps of: preparing a (3Z)-3-decenyl metal compound (3) from a 1-halo-(3Z)-3-decenyl compound (2), where X1 represents a halogen atom, where M2 represents Li or MgZ2, and Z2 represents a halogen atom or a (3Z)-3-decenyl group; a coupling reaction of the compound (3) with a 1, 3-dihalopropane compound (4), where X2 and X3 independently of each other represent a halogen atom, to form a 1-halo-(6Z)-6-tridecene compound (5), where X4 represents a halogen atom; and preparing a (6Z)-6-tridecenyl metal compound (1) from the compound (5).

The application discloses a sorghum aphid repellent, wherein the efficacy component is trans-2-decenal, and the trans-2-decenal can be configured into a liquid paraffin solution of trans-2-decenal for use, preferably a liquid paraffin solution of 0.1 mu g / mu L-0.5 mu g / mu L trans-2-decenal. The sorghum aphid repellent is prepared from existing chemical products, the components are stable, the preparation method is simple, the repellent effect on the sorghum aphid is obvious, and the sorghum aphid repellent is expected to be used in the prevention and control of the sorghum aphid. The repellent can be used for preventing the harm of the sorghum aphid, the compound in the application is an industrial raw material, the preparation method is simple, the price is low, the compound is safe for human and livestock, and the environment is not polluted, so the application has a wide application prospect.

The invention discloses a high-efficiency catalyst composition for preparing optical-grade PC (polycarbonate), the catalyst composition comprises a non-metal catalyst and a rare earth oxide, and the mass ratio of the non-metal catalyst to the rare earth oxide is 1: (0.1-1); the non-metal catalyst is prepared from at least one of N-heterocyclic carbene borate, 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, N, N '-di-tert-butyltetramethylguanidine or 1, 3-di (2, 6-diisopropyl phenyl) imidazole-2-subunit, and the non-metal catalyst is prepared from at least one of N-heterocyclic carbene borate, 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene, N, N'-di-tert-butyltetramethylguanidine and 1, 3-di (2, 6 In the efficient catalyst for preparing the optical grade PC, the nonmetal catalyst has a high steric hindrance effect and can inhibit Fries side reaction, meanwhile, the rare earth oxide is introduced to serve as a cocatalyst, carbonyl is activated through Lewis acid, and the catalytic activity and catalytic efficiency are greatly improved.

The invention discloses a method for synthesizing jasmine lactone through photocatalytic reaction, and belongs to the field of fine chemicals. The synthesis method comprises the following steps: taking (E)-1, 6-octadiene-3-ketone-2 and iodoacetic acid as raw materials, carrying out photocatalytic reaction to obtain (E)-5-oxo-8-decenoic acid, then reacting with sodium borohydride to obtain (E)-5-hydroxy-8-decenoic acid, and carrying out esterification reaction on a crude product under the catalysis of acid without separation to obtain jasmonlactone. The method for obtaining the jasmine lactone has the advantages of easiness in synthesis of raw materials, mild reaction conditions, low cost and few steps, shows the superiority and simplicity of the synthesis method, and provides a simple way for preparation of the compounds.

The application discloses a method for synthesizing N-(hetero) aryl sulfonamide compounds. The method uses bipyridine as a ligand, nickel acetate or nickel chloride as a catalyst, low-cost low-activity (hetero) aryl chloride and different types of sulfonamides as substrates, 1,8-diazabicycloundec-7-ene, tetramethyl guanidine, 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene and the like as organic bases, and tetra-n-butylammonium iodide as an additive. The C-N coupling reaction of (hetero) aryl chloride and sulfonamide is realized by light-induced nickel catalysis in an argon atmosphere, so as to realize the synthesis of various (hetero) aryl sulfonamide compounds. The reaction system is simple, the operation is simple, the reaction condition is mild, the post-treatment is simple, the yield is good, the substrate range is wide, the use of traditional expensive metal catalysts and inorganic bases is avoided, the problems of complex catalytic system reaction and poor functional group compatibility are solved, and the method is a simple and efficient method for synthesizing (hetero) aryl sulfonamide compounds. The method has good application prospect.

To provide a novel penetration enhancer of royal jelly into skin.SOLUTION: A penetration enhancer into skin of 10-hydroxydecanoic acid and / or 10-hydroxy-2-decenoic acid contained in royal jelly, comprising, as an active ingredient, an (ammonium acryloyldimethyltaurate / methacrylic acid beheneth-25) crosspolymer.SELECTED DRAWING: Figure 1

The invention discloses an acrylic acid type rust conversion agent and a preparation method thereof, and belongs to the technical field of metal surface treatment. The acrylic acid type rust conversion agent is prepared from the following raw materials: 50 to 60 parts of pure acrylic emulsion, 4 to 6 parts of cross-linking agent, 10 to 12 parts of rust conversion agent, 0.8 to 1.2 parts of defoaming agent, 1 to 1.2 parts of flatting agent, 2 to 3 parts of coalescing agent, 8 to 10 parts of nano silicon dioxide, 20 to 25 parts of deionized water and 0.1 to 0.3 part of N, N-dibenzylaniline. The preparation method of the cross-linking agent comprises the following steps: reacting amino-terminated silicon oil with perfluorobromooctane to obtain an intermediate 1, reacting with 10-bromo-1-decene to obtain an intermediate 2, and finally preparing the cross-linking agent under the action of formic acid and hydrogen peroxide. The prepared acrylic acid type rust conversion agent has good adhesive force and salt spray resistance.

The invention relates to a cytochrome P450 enzyme mutant capable of improving substrate tolerance and catalytic efficiency and application of the cytochrome P450 enzyme mutant, and belongs to the technical field of gene engineering and enzyme engineering. On the basis of cytochrome P450 enzyme CYPLY, the 243 site or the 592 site is selected for single-site or multi-site mutation, and the catalytic efficiency of the obtained CYPLY mutant is improved by 37-590%. Compared with cytochrome P450 enzyme CYPLY, the cytochrome P450 enzyme CYPLY has the advantages that the cytochrome P450 enzyme CYPLY has the advantages that the cytochrome P450 enzyme CYPLY has the optimal substrate tolerance characteristic, the conversion rate of 30.1% is still kept under the high substrate concentration of 1.0 g / L and is increased by about 6 times compared with 5.1% of the cytochrome P450 enzyme, the use of the cytochrome P450 enzyme is greatly promoted, and the cytochrome P450 enzyme CYPLY has important significance on the biosynthesis of 10-hydroxy-2-decenoic acid.

This invention relates to the field of micro / nano manufacturing technology, and in particular to a high-refractive-index fluidized nanoparticle, a hybrid photoresist, a patterned coating, and methods for preparing the respective. The high-refractive-index fluidized nanoparticle comprises a core, the core being modified with a first ligand and a second ligand; the first ligand is one or more selected from methacrylic acid, 4-pentenoic acid, methacryloxypropyltrimethoxysilane, and sodium methacrylate sulfonate; the second ligand is one or more selected from piperidine, N,N-diisopropylethylamine, 1,5,7-triazabicyclo[4.4.0]decene-5-ene, tetramethylguanidine, triethylamine, and tetrahydropyrrole. This invention, through the design of ultra-small metal oxide nanoparticles and innovative organic ligands, successfully solves the technical contradiction of traditional photoresist materials in achieving high resolution, high refractive index, and low curing shrinkage.

The present invention provides a repellent composition for mites which is excellent in mite-repelling effect against indoor mites even after a long period of time and is also excellent in safety to humans and animals. The present invention relates to a repellent composition for mites, which contains: (a) 1,8-cineol and / or 1,4-cineol and (b) a perfume ingredient, wherein the perfume ingredient contains one or two or more kinds of perfume compounds having a logP value of 2.0 to 5.5. The mixing ratio (a) / (b) of the (a) ingredient to the perfume compounds contained in the (b) ingredient is set to 5 to 100 on a mass basis. The perfume compounds contained in the (b) ingredient are at least one selected from the group consisting of ethyl cinnamate, allyl caproate, 3-methyl-5-phenyl-1-pentanol, citronellol, δ-dodecalactone, β-ionone, benzyl benzoate, linalyl acetate, geranyl acetate, tricyclo decenyl propionate, benzyl salicylate, limonene, and amyl salicylate.

The present application relates to a kind of containing fatty acyl-coa dehydrogenase engineering bacteria and its application method, belong to microbial fermentation technical field.The engineering bacteria containing fatty acyl-coa dehydrogenase gene in the present application include fatty acyl-coa dehydrogenase gene and fatty acyl-coa thioesterase gene, the fatty acyl-coa dehydrogenase gene is derived from Candida tropicalis or Yarrowia lipolytica, its nucleotide sequence is SEQ ID NO.1 or SEQ ID NO.2;The nucleotide sequence of the fatty acyl-coa thioesterase gene is SEQ ID NO.3.Fatty acyl-coa dehydrogenase from Candida tropicalis and Yarrowia lipolytica, combined with existing fatty acyl-coa thioesterase, jointly convert 10-hydroxy decanoic acid, significantly improve the conversion rate of 10-hydroxy-2-decenoic acid, so that the industrialization production of 10-hydroxy-2-decenoic acid becomes possible.

The present application relates to polypropylene material and its preparation method, disclose a kind of high molecular weight propylene-based elastomer toughened polypropylene blend composite material and its preparation method;Its preparation method is, using high molecular weight propylene-based elastomer toughened polypropylene, the high molecular weight propylene-based elastomer is by propylene monomer and its comonomer (1-butene, styrene, 1-hexene, 1-octene, 1-decene and the like one or several) preparation by quinoline amine-based binuclear metal hafnium catalyst and cocatalyst (three five fluorophenyl boron, triphenyl carbonium tetrakis (five fluorophenyl) borate, aluminoxane, alkyl aluminum, alkyl aluminum chloride and the like one or several);While meeting the improvement PP toughness, keep its excellent strength and rigidity, and continue to give its excellent low temperature toughness, specifically, after toughening modification, the toughness of polypropylene-based blend composite material at room temperature (25 DEG C) and low temperature (-25 DEG C) are obviously improved, simultaneously, its tensile strength changes little.Therefore, the present application has originality innovation, provides new direction for the development of polyolefin material field.

The present invention specifies an unpleasant odor, which is a semi-dry odor generated by a fibrous product such as clothing, towels, bedding, and the like, and provides a perfume composition, a common consumer product, and the like, which are capable of reducing the unpleasant odor. The perfume composition according to the present invention can exert a deodorizing (masking) effect on unpleasant odors, which are half-dry odors, by containing, as a masking active ingredient, one or more compounds selected from the group consisting of 3-(4-tert-butylphenyl) propionaldehyde, 3-tricyclo [5.2. 1.02, 6] deca-3-alkenyl acetate, 3-(4-ethylphenyl)-2, 2-dimethylpropionaldehyde, ethyl 2-cyclohexyl propionate, and the like.

The invention relates to the field of olefin synthesis, and discloses a system and a method for directionally producing 1-decene. The method comprises the following steps: in the presence of a base catalyst, contacting biomass grease with methanol to carry out transesterification, so as to obtain a fatty acid methyl ester crude product; carrying out separation treatment I on the fatty acid methyl ester crude product to obtain a C18 fatty acid methyl ester mixture which comprises methyl oleate, methyl linoleate and methyl linolenate; the method comprises the following steps: in the presence of a hydrogenation catalyst, contacting a C18 fatty acid methyl ester mixture with hydrogen for selective hydrogenation reaction to obtain a methyl oleate crude product; performing separation treatment II on the methyl oleate crude product to obtain a methyl oleate product; and contacting the methyl oleate product with ethylene and a metathesis catalyst to carry out a metathesis reaction so as to obtain a 1-decene product. According to the method, the 1-decene can be directionally prepared by taking the biomass grease as the raw material, the conversion rate of methyl oleate is 75% or above, and the selectivity of the 1-decene is 99% or above.

The embodiment of the application discloses an epoxy resin composition, and relates to the technical field of packaging materials. The epoxy resin composition provided by the embodiment of the application comprises an epoxy resin matrix containing a dynamic covalent bond, a curing agent and TBD modified nanoparticles; wherein the TBD modified nanoparticles comprise a nanoparticle body and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) located on the surface of the nanoparticle body, and the TBD is reversibly fixed on the surface of the nanoparticle body; the mass ratio of the epoxy resin matrix, the curing agent and the TBD modified nanoparticles is (4-12):(2-8):(1-12) in terms of mass fraction. The epoxy resin composition provided by the embodiment of the application has a low thermal expansion coefficient, and meanwhile has high toughness and stress release capacity.

The invention relates to the field of macromolecules, in particular to hydrogenated dimer decene as well as a preparation method and application thereof. The invention provides hydrogenated decene with lower kinematic viscosity required in the field of cosmetics, a preparation method of the hydrogenated decene and application of the hydrogenated decene in preparation of cosmetics, a catalyst and a step process which are completely different from those in the prior art are adopted, the preparation method is more specific to quality control of dimers, generation of polymers is reduced, and the production cost is reduced. The yield of the dimer is increased, the effect of reducing the kinematic viscosity of the product is achieved, and industrial production is easier to realize.

The present invention relates to a method for (masking or) making it difficult to sense the odor of sotolon without affecting the taste (flavor) of food and beverages, and to a flavoring composition that can be suitably used to mask the deterioration odor of food and beverages. The present invention can suppress the odor of sotolon without impairing the taste of a product by using, at specific concentrations in food and beverages, β-caryophyllene oxide, ethyl acetoacetate, methyl isovalerate, ethyl valerate, triethyl citrate, eugenol, hexyl octanoate, bornyl acetate, γ-methyl ionone, 1,4-cineole, 3,7-dimethyl-2-methylene-6-octen-1-ol, 8-decenal, N-(2-hydroxy-2-phenylethyl)-2-isopropyl-5,5-dimethylcyclohexane-1-carboxamide, mustakone, and (2E)-4-methyl-2,4-tridecadienal.

The invention relates to the technical field of medicinal compounds, and particularly discloses a novel compound (S, E)-5-hydroxy-N-isobutyl-4-oxo-2-decenamide extracted and separated from anacyclus pyrethrum roots, and application of the novel compound in preparation of anti-inflammatory drugs. Modern spectrum technologies such as 1D-NMR (1D-Nuclear Magnetic Resonance), 2D-NMR (2D-Nuclear Magnetic Resonance), high-resolution mass spectrum and the like are used for carrying out structure identification on a monomeric compound obtained through separation, and the molecular structure of the compound is deduced. An enzyme activity experiment result shows that the novel compound has relatively good activity of inhibiting TYK2. Molecular docking results show that the novel compound and the target protein have good binding activity, and the interaction force is mainly hydrogen bonds and hydrophobic force. By detecting the inhibiting effect of the novel compound on the NO release amount of a mouse macrophage line RAW264.7, the novel compound has a good anti-inflammatory effect and has a good application prospect in the aspect of treating inflammation.