17 results about "Decane" patented technology

The invention relates to a two-component dual-curing submarine cable water-blocking pouring sealant, which is composed of a component A and a component B according to a mass ratio of 1: 0.3-1, the component A comprises tricyclodecane modified hydroxyl-terminated polybutadiene, tertiary carbonate epoxy acrylate, polybutadiene, an acrylate-silicon dioxide nano composite material and a silane coupling agent, and the component B comprises a component C, a component D and a component E according to a mass ratio of 1: 0.3-1. A catalyst, a photoinitiator, an antioxidant, a defoaming agent and a polymerization inhibitor; the component B is prepared from an organic silicon modified dual-curing prepolymer, isocyanate and polybutadiene. The dual-component dual-curing submarine cable water-blocking pouring sealant can be subjected to UV and polyurethane dual curing, has excellent flowability and infiltration permeability, can be used for quickly and completely filling even a narrow gap, does not empty, does not generate a bubble defect, has high dual curing efficiency, and has relatively good water-blocking performance, electrical insulation performance and excellent high and low temperature resistance; long-term use reliability is stable, and submarine cables are effectively protected from seawater erosion.

Disclosed is a composition for cleaning and regenerating the hydrophobicity of the surface of a transparent polymeric material of high optical quality, characterized in that it comprises 20% to 40% by weight of a first liquid mixture of 0.2% to 3% by weight of paraffin and 97% to 99.8% by weight of a petroleum solvent that lies between heptane and decane, and 50% to 85% by weight of a second liquid mixture of 0.2% to 8% by weight of a surfactant having a molecular weight at most equal to 150 g / mol, 2-butoxyethanol, and 4% to 15% by weight of ethanol, the remainder to 100% being water; a method for cleaning and regenerating the hydrophobicity of the surface of a transparent polymeric material of high optical quality by means of this composition.

The invention relates to a novel salt of 8, 8-difluoro-3-(2-(4-(4-methylpyridazine-3-yl) phenyl)-2-oxoethyl)-1, 3-diazaspiro [4.5] decane-2, 4-dione, and a preparation method of the novel salt. More specifically, the present invention relates to a benzene sulfonate salt (BSA-salt). The invention also relates to a preparation method of a composition containing the salt and application of the salt.

The present invention relates to a process for the synthesis of the anti-haemorrhagic agent (R)-N-hydroxy-2-((4-(4-(methylcarbamoyl)phenoxy)phenyl)-sulfonyl)-8- azaspiro[4.5]decane-2-carboxamide and intermediates thereof. The invention also relates to a process for the preparation of a synthetic intermediate of said anti- haemorrhagic agent, (R)-8-(tert-butoxycarbonyl)-2-((4-fluorophenyl)sulfonyl)-8- azaspiro[4.5]decane-2-carboxylic acid and intermediates thereof.

The invention relates to the field of synthesis of drug intermediates, in particular to a preparation method of 3-oxo-1-oxa-8-azaspiro [4.5] decane-8-tert-butyl formate. The preparation method comprises the following steps: carrying out condensation reaction on a compound III (4-ethoxycarbonyl methylene-1-tert-butyl piperidinecarboxylate) and methyl glycolate to generate a five-membered ring, and preparing to obtain a compound IV; according to the preparation method, tert-butyl 3-oxo-1-oxa-8-azaspiro [4.5] decane-8-formate (compound I) is prepared through a decarboxylation reaction of the compound IV, and the total yield of the reaction can reach 88.73%. The preparation method provided by the invention has the advantages of easily available raw materials, simple operation and high reaction yield.

The present invention describes the gold-catalyzed construction of geminocyano-substituted tricyclic [4.4.0.0] 1,5 The method for synthesizing the decane skeleton belongs to the field of organic synthesis technology. Compound 1 is added to an organic solvent, and the reaction is carried out at 25℃-80℃ for 3 hours in the presence of a gold catalyst and additives to obtain product compound 2. The gold catalyst is selected from triphenylphosphine monochloride, triphenylphosphine gold(I) 3-methylbenzotriazole salt, and triphenylphosphine gold(I) trifluoromethanesulfonate. The additive is selected from silver trifluoromethanesulfonate, silver fluoroantimonate, and silver bis(trifluoromethanesulfonylimide). The synthetic method described in this invention is simple to operate, low in cost, highly efficient, and widely applicable, possessing practical application value. Substrate 1 in this invention can be flexibly derivatized by adjusting the structure of its synthetic raw materials or through subsequent functionalization modifications, providing greater convenience for skeleton modification. This invention utilizes the properties of gold catalysts to achieve rapid and convenient synthesis of fused-ring skeletons containing three-membered rings that are difficult to synthesize under other conditions.

Compositions and coatings for thin films designed to protect surfaces and windows from environmental abrasion (e.g., sand, dust, and rubbing) that are transparent in visual and infrared wavelengths are disclosed. The compositions comprise thiol-containing copolymers comprising: (1) 10-(3-butyl-2-hexyl-6-(9-mercaptononyl)cyclohexyl) decane-1-thiol; and (2) a multifunctional terminally unsaturated hydrocarbon monomer; wherein (1) and (2) are combined to form a UV curable crosslinked thermoset polymer network and no particulate fillers are added to the composition. The films exhibit a specular transmission of greater than 70% in the visual spectrum at about 400-700 nm, and IR wavelengths at about 4-5 μm, and about 7.5-12 μm when applied to a surface of a substrate in a coating thickness of about 1-500 μm. A method for making the films involving an UV initiated thiol-ene curing mechanism is also provided.

To provide a method for synthesis of diazabicyclo[6.2.0]decane compounds.SOLUTION: The synthesis proceeds by stereoselective synthesis of a chiral lactone followed by azetidine formation via a series of chemoselective reactions. Bicyclization results with the formation of diazobicyclo[6.2.0]decane related compounds.SELECTED DRAWING: None

This invention relates to a catalyst for the selective reduction of NOx, said catalyst being based on IZM-10 AEI zeolite and at least one transition metal, and a method for its preparation, said method comprising at least mixing the following substances in an aqueous medium: FAU-type zeolite, whose SiO2... 2(FAU) / Al2O 3(FAU) The process involves: ii) a molar ratio of 10 to 60 (inclusive) and less than 0.005% by mass of sodium in cationic form, a nitrogen-containing organic compound R (wherein R is (6R,10S)-6,10-dimethyl-5-aza-onium spiro[4,5]decane in hydroxide form), and optionally sodium hydroxide, until a homogeneous precursor gel is obtained; iii) a hydrothermal treatment step; iii) a step of at least one ion exchange with a solution containing at least one substance capable of releasing a transition metal; and iv) a heat treatment step by drying and calcination.

The application relates to the technical field of cetane number testing, and discloses standard fuel and application of the standard fuel in a fuel cetane number determination method. The standard fuel comprises low-cetane-number normal standard fuel and high-cetane-number normal standard fuel; wherein the low-cetane-number normal standard fuel is a hanging type tetrahydrodicyclopentadiene, and the high-cetane-number normal standard fuel is selected from one of normal dodecane, normal decane and normal tetradecane. The standard fuel provided by the application has a good volume linear relationship, strictly meets the requirements of normal standard fuel, can expand the cetane number determination range of test fuel to 21.88-81.19, can greatly reduce the test cost, and is suitable for promotion.

The invention discloses a deodorizing method of a regenerated polypropylene material. According to the deodorizing method of the regenerated polypropylene material, supercritical CO2 extraction treatment is carried out on the regenerated polypropylene material by adopting an extracting agent, wherein the extracting agent comprises supercritical CO2 and a cosolvent; wherein the volatile odor substance of the regenerated polypropylene material comprises one or more of isoparaffin with 10 to 20 carbon atoms, isoolefin with 10 to 20 carbon atoms, decane, n-dodecane, n-tetradecane, octanal, hexanal, limonene, isoterpinene, octanone and terpene alcohol. The odor removal method can effectively remove volatile odor substances in the regenerated polypropylene material, and the odor grade of the obtained regenerated polypropylene material can meet the application requirements of automotive interiors.

A small crystal borosilicate zeolite having the framework structure of SSZ-43 is provided. The zeolite may be synthesized by (a) preparing a synthesis mixture comprising a boron atom source, a silicon atom source, a structure directing agent comprising a (6R, 10S)- 6,10-dimethyl-5-azaspiro[4.5]decane cation, a source of hydroxide ions, a source of an alkaline and / or alkaline-earth metal, beta zeolite seeds, and water; (b) heating the synthesis mixture under crystallization conditions including a temperature of from 100°C to 200°C for a time sufficient to form crystals of the borosilicate zeolite; and (c) recovering at least a portion of the borosilicate zeolite from step (b).

The invention discloses a process route for synthesizing 4-[4-(1, 1-dimethylethyl) phenyl]-1, 4-oxothiaonium salt and 1-(5, 5, 6, 6-tetrafluorospiro [1, 3-dioxane naphthene-2, 2 '-tricyclo [3.3. 1.13, 7] decane]-5'-yl) 2, 2-difluoro-2-sulfoacetate, cation fragments are provided by bis (4-tert-butylphenyl) iodine trifluoromethanesulfonate, and the cation fragments are provided by bis (4-tert-butylphenyl) iodine trifluoromethanesulfonate. According to the synthetic route, thioxane sulfonate is formed through substitution, then ion exchange is carried out, and finally the obtained intermediate is subjected to ketal to obtain the target photoacid generator product. By optimizing reaction conditions and a process route, the use amount of resin is reduced, side reactions are effectively controlled in the front stage of the process, the purity, stability and yield of the photoacid generator are improved, the metal content and halogen content of the compounds are reduced, and the yield of the photoacid generator is improved. The requirements of modern microelectronic manufacturing on a high-performance photoacid generator are met.

The present application relates to the technical field of polyimide film preparation, and in particular to a preparation method of high-toughness polyimide nanofiber film. The preparation method comprises a step of synthesizing polyamide acid, and further comprises a step of property regulation of a spinning solution containing the polyamide acid; the mixed solvent used for the property regulation of the spinning solution is selected from at least two of N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, dimethyl sulfoxide, 1,4-dioxane, methanol, ethanol, toluene, chloroform, tetrahydrofuran, n-hexane, n-heptane and n-decane. The film prepared by the method has a breaking strength of 30 MPa and an elongation at break of 60%, various diamine and dianhydride monomers and solvent systems can be prepared by the method, and the mechanical properties are improved, the preparation process has a wide application range, and the polyimide film prepared by the method can be used for oil-water separation and has the ability of cyclic use and hot oil separation.

This invention relates to a method for preparing AEI-based IZM-10 zeolite, the method comprising at least mixing the following substances in an aqueous medium: FAU-based zeolite, whose SiO2... 2(FAU) / Al2O 3(FAU) The precursor gel obtained at the end of step i) is then subjected to hydrothermal treatment, comprising a molar ratio of 10 to 60 (inclusive of endpoints) and less than 0.005% by mass of sodium in cationic form, a nitrogen-containing organic compound R, wherein R is (6R,10S)-6,10-dimethyl-5-aza-onium spiro[4.5]decane in hydroxide form, and optionally sodium hydroxide. The invention also relates to AEI-based zeolites having a SiO2 / Al2O3 molar ratio of 10 to 60 (inclusive of endpoints) and a purity greater than or equal to 98% by weight, preferably greater than or equal to 99% by weight, wherein the zeolite is in a partially or fully protonated form and is obtained by the method described.

To provide a resin powder composition, a three-dimensional molded body, and a method for producing a three-dimensional molded body, which are suitable for producing a three-dimensional molded body excellent in impact strength and tensile modulus of elasticity. 【Solution means】(a-1) MFR (230 ° C, 2.16 kg load) is 0.1 g / 10 min to 20 g / 10 min, (a-2) the amount of the 23 ° C n-decane soluble part (D sol ) is 6% by mass to 15% by mass with respect to the total mass of the 23 ° C n-decane soluble part amount (D sol ) and the 23 ° C n-decane insoluble part amount (D insol ), and (a-3) the powder aggregation stress at 160 ° C is 0 N to 2.5 N A resin powder (A) containing a propylene-based polymer powder that satisfies the above conditions, (b-1) MFR (230 ° C, 2.16 kg load) is 25 g / 10 min to 150 g / 10 min, (b-2) the amount of the 23 ° C n-decane soluble part (D sol ) is 6% by mass to 15% by mass with respect to the total mass of the 23 ° C n-decane soluble part amount (D sol ) and the 23 ° C n-decane insoluble part amount (D insol ), and (b-3) the powder aggregation stress at 160 ° C is 0 N to 2.5 N. A resin powder composition comprising a resin powder (B) containing a propylene-based polymer powder that satisfies the above conditions, wherein the mass ratio of the resin powder (B) to the resin powder (A) is 30 / 70 to 70 / 30.

A propylene polymer has a melt flow rate (MFR), as determined under conditions of a measurement temperature of 230° C. in accordance with ASTM 1238 standard, in a range of 0.01 g / 10 min or more and 1000 g / 10 min or less. The propylene polymer further has a maximum temperature (Tm−maxv) at which heat absorption is zero in differential scanning calorimetry (DSC) at a heating condition of 10° C. / min, of 169.0° C. or higher and 220° C. or lower. The propylene polymer satisfies two or more of the following requirements: (Mz / Mw determined by gel permeation chromatography (GPC) is 3.50 or more and 5.65 or less; a difference between Mw / Mn and Mz / Mw determined by GPC is 8.3 or less; and a decane soluble component content (C10sol.)( / wt %) and MFR ( / (g / 10 min)) that satisfies the following relational expression:(C⁢10⁢sol.)-4 / 3×Log(MFR )≤2.3⁢0.