23 results about "Cyclopropene" patented technology

The application relates to the technical field of oil refining, in particular to a processing device for removing cyclopropene fatty acids in cottonseed oil, which comprises a shell and a shell cover, the shell cover is fixedly installed on the top of the shell, a mixing assembly is movably installed in the shell, the mixing assembly comprises a screening frame, a sliding plate and two connecting pipes, one end of the connecting pipe is fixedly connected with the bottom of the shell and communicates with the bottom of the shell. The mixing liquid is sprayed through the corresponding nozzles, so that the mixing liquid collides with each other to be refined, the mixing efficiency of the mixing liquid is improved, the mixing liquid is separated through the sliding plate and the screening frame, the screening frame scrapes off and screens the soap nuts and impurities in the mixing liquid, the sliding plate pushes the mixing liquid upwards, the mixing effect of the mixing liquid is improved, the air in the shell is extruded, so that the air cleans the soap nuts and impurities in the connecting pipe, the diffused mixing liquid is impacted and diffused by the rotating impeller, so that the mixing liquid is further refined and the mixing efficiency is improved, and the impeller scrapes off the soap nuts and impurities above the screen through rotation.

The invention relates to fluorine-containing isoxazolidine-5-ketone as well as a synthesis method and anti-tumor application thereof. According to the synthesis method, gem-difluorocycloacrylimide and nitrone are taken as substrates, Ni (ClO4) 2.6 H2O is taken as a catalyst, (+ / -)-2, 2 '-(propane-2, 2-diyl) bis (4-phenyl-4, 5-dihydrooxazole) is taken as a ligand (L) in an organic solvent, cycloaddition isomerization reaction is carried out at about 30 DEG C, and the fluorine-containing isoxazolidine-5-ketone compound is obtained. And the fluorine-containing isoxazolidine-5-ketone is obtained through preparation. The method is mild in reaction condition, capable of being well compatible with various functional groups and high in yield, and the product further has certain biological activity and can inhibit proliferation of cancer cells. The invention discloses the realization of the cycloisomerization reaction of the gem-difluorocyclopropene and the nitrone for the first time, provides a new idea for the synthesis of the fluorine-containing isoxazolidine-5-ketone and the derivative thereof, and has a good application prospect in the fields of medicines and synthesis.

The present invention relates to a composition comprising certain triglycerides having a low content of cyclopropene-based fatty acid (CPFA) acyl groups and tocopherols, as well as the use of such a composition, especially in cosmetic applications, and a method of treating baobab oil.

The invention relates to the technical field of suspending agents, and discloses a water suspending agent and a use method thereof, the water suspending agent comprises the following components by weight: 27.8-45% of a hydrophobically modified cyclopropene molecule encapsulating agent complex; 8%-20% of at least one potassium salt, sodium salt or magnesium salt which is soluble in water; and 27%-50% of water. The composition can also comprise an anti-freezing agent or a thickening agent and other assistants. According to the technical scheme, a cyclopropene molecule encapsulating agent complex is subjected to hydrophobic modification and compounded in a high-concentration saline water phase. And the hydrophobic modified layer and the high-salt environment have a synergistic effect, so that the rapid dissolution of the complex after meeting water is effectively inhibited, and the slow release of 1-methylcyclopropene is realized. The water suspending agent is suitable for being mixed with water to be sprayed 7-21 days before fruit harvesting, can effectively prevent fruit dropping in the harvesting period and maintain fruit hardness, and solves the technical problem that the 1-methylcyclopropene complex is difficult to apply in open fields due to quick release.

The invention provides diazabicyclo [3.1. 0] hexane derivatives as well as a preparation method and application thereof, and belongs to the technical field of organic synthesis. The structural formula of the derivative is shown as a formula I. According to the derivative, a thermally driven [3 + 2] dipolar cycloaddition reaction is carried out on a cyclopropene derivative and N, N-cyclo-aza-methylenimine ylide, and the product has good diastereoselectivity. The method has the advantages of mild reaction conditions, high conversion rate, good diastereoselectivity and wide substrate universality. In-vitro anti-tumor activity screening on the compound library provided by the reaction shows that some analogues show relatively remarkable proliferation inhibition on cell strains of leukemia HL-60, lung cancer A549, liver cancer HepG2, breast cancer MDA-MB-231 and colon cancer SW480, and particularly, the HL-60 cell strains are most sensitive to the compounds.

The application belongs to the technical field of medical apparatus and instruments, and discloses a handle-adjustable cyclopropene injector, which comprises a scale syringe, a piston handle is slidably connected to the inner wall of the scale syringe, a scale value is arranged on the handle body of the piston handle, and a handle metering adjusting part is arranged between the scale syringe and the piston handle; through cooperation of the cam plate, the cam groove and the torsional spring of the handle metering adjusting part, the piston handle is precisely positioned at multiple intervals, the arc-shaped abutment is used to limit the pushing of the scale syringe, so that the cyclopropene amount is prevented from being excessively or insufficiently pushed, the scale of the piston handle can be real-timely marked when the arc-shaped abutment is pulled up, the adjustment is efficient, the sleeve can be separated from the cam groove limit by only 90-degree torsion, the operation is flexible, the clamping limit structure clamps the knuckles of medical staff through the rubber bumps, the natural rubber material increases the friction, the hands are prevented from slipping when the piston is pushed, and the risk of medical accidents is reduced.

The application belongs to the technical field of pesticide preparation, and particularly relates to 1-methylcyclopropene oil suspending agent and a preparation method thereof. The cyclodextrin inclusion compound of 1-methylcyclopropene is dispersed in a non-water medium, so that the rapid release of the cyclodextrin inclusion compound of 1-methylcyclopropene caused by water is avoided, the stability of the 1-methylcyclopropene oil suspending agent is improved, and meanwhile, the phosphatidylcholine is used in combination with an emulsifier, a thickening agent and other auxiliaries, so that the problem of high viscosity caused by the dispersion of cyclodextrin in an oil medium is solved, the appropriate viscosity of the 1-methylcyclopropene oil suspending agent is ensured, the use and storage are facilitated, the environment is friendly, and the 1-methylcyclopropene oil suspending agent can be used in open space and closed space at the same time.

The present disclosure relates to organic electrolyte solutions including organic electrolytes (e.g., aromatic imides, ferrocenes, spiro fused compounds, or cyclopropenium compounds), and redox flow batteries and systems including the same.

Described are monomers having nitrogen atoms that can be protonated at relatively low pH values ​​(e.g., below pH 9.5 or below pH 9), polymers comprising monomer units derived from these monomers, anion exchange separation articles having the polymers grafted to a porous substrate, and methods of using the anion exchange separation articles to separate mixtures of materials having different ionic contents. Advantageously, the anion exchange separation articles can be used to separate biological materials that cannot be subjected to high pH conditions (e.g., above 9 or 9.5) and / or high ionic strength conditions (e.g., above 0.5 M or 1 M). JPEG2026501205000051.jpg22128

This application discloses a cyclic olefin ring-opening alternating copolymer, its preparation method, and its applications. The cyclic olefin ring-opening alternating copolymer of this application is synthesized by alternating 1:1 ring-opening substitutions of any two cyclic olefin monomers selected from substituted or unsubstituted cyclopropylene, substituted or unsubstituted cyclobutene, and substituted or unsubstituted norbornene. The cyclic olefin ring-opening alternating copolymer of this application possesses a precise 1:1 alternating insertion copolymer structure with high alternation degree, high molecular weight, narrow distribution, and excellent thermodynamic properties, laying the foundation for the preparation of high-performance elastomers, optical films, and biomedical materials.

The invention relates to an antibacterial high-strength organic composite material and a preparation method thereof. The antibacterial high-strength organic composite material comprises the following components: polypropylene, polyvinyl alcohol, modified titanium dioxide, epoxidized soybean oil, carboxymethyl cellulose, a filler and an auxiliary agent. Wherein the modified titanium dioxide is obtained by firstly carrying out blending reaction on hydroxylated titanium dioxide and arachidonic acid and then carrying out blending reaction with styrene, butyl acrylate and methacrylic acid tannic acid. A long alkyl chain, a benzene ring, acrylate and tannic acid are introduced into the modified titanium dioxide; wherein the long alkyl chain can improve the dispersibility and mechanical properties, the benzene ring can further improve the mechanical properties, the acrylate can improve the compatibility of the components, and the tannic acid can improve the structural stability; in addition, titanium dioxide has an antibacterial effect and can generate a synergistic effect with other components after being modified, so that the performance of the product is improved.

A process for the preparation of fused ring arylamines from isonitriles and cyclopropenes is disclosed, the reaction scheme being as follows:

The invention relates to a packaging composition which is characterized in that the packaging composition comprises nitrogen-containing heterocyclic acrylate, a photocuring monomer and a photoinitiator, the structural general formula of the nitrogen-containing heterocyclic acrylate is as shown in formula (1): (1) wherein X is a substituent group with 6-30 carbon atoms, an aromatic substituent group without heteroatoms, or a substituent group containing nitrogen, sulfur or oxygen atoms; according to the nitrogen-containing heterocyclic acrylate monomer, nitrogen atoms of a pyridine ring serve as main capture sites of water molecules and metal ions, substituent groups containing additional heteroatoms (such as O, N and S) are introduced into specific positions of the pyridine ring to construct secondary capture sites, and the synergistic barrier effect of a packaging barrier film on the water molecules and the metal ions is achieved; therefore, the packaging performance of the packaging composition barrier film is remarkably improved, and the service life of a device is prolonged.

This invention relates to compositions and methods for improving recovery after traumatic or ischemic central nervous system injury, including the administration of compositions comprising cyclopropenzyme (AOS) or its functionally equivalent variants or derivatives.

The present invention relates to the non-therapeutic cosmetic use of a composition comprising at least one cyclopropenoid fatty acid for inhibiting the activity of stearoyl-CoA desaturase and for acting as depigmenting, lightening and / or whitening agent for human skin, mucous membranes, body hair and / or head hair and / or as an agent for removing pigment spots on human skin. The present invention also relates to a composition for the treatment of hyperpigmentation. According to one embodiment, the at least one cyclopropenoid fatty acid is chosen from malvalic acid and / or malvalonic acid.

The invention belongs to the technical field of medical instruments, and discloses a handle-adjustable cyclopropanecarboxaldehyde syringe which comprises a graduated needle cylinder, a piston handle is slidably connected into the inner wall of the graduated needle cylinder in an attached mode, scale values are arranged on a handle body of the piston handle, and a handle metering adjusting part is arranged between the graduated needle cylinder and the piston handle in a combined mode. Through cooperation of an arc angle plate, an arc angle groove and a torsional spring of the handle metering adjusting part, multi-interval accurate positioning of a piston handle is achieved, excessive or insufficient pushing of the cyclopropanecarboxaldehyde dosage is avoided through abutting and limiting of an arc abutting frame and a needle cylinder opening during pushing, scales of the piston handle can be marked in real time when the arc abutting frame is pulled upwards, adjustment is efficient, and operation is convenient. The sleeve can be separated from arc angle groove limiting only by 90-degree torsion for resetting, operation is flexible, the clamping limiting structure clamps the knuckles of the medical staff through rubber protruding blocks, friction force is increased through natural rubber materials, the hand is prevented from slipping when the piston is pushed, and the medical accident risk is reduced.

This invention provides a fruit and vegetable preservative solution with strong wetting and ethylene inhibition effects, its preparation method, and its application method. The fruit and vegetable preservative solution comprises a nanocellulose solution, a film-forming agent, a plasticizer, a biosurfactant, and a 1-methylcyclopropene / cyclodextrin inclusion complex. The film-forming agent includes beeswax and / or coconut oil, the plasticizer includes glycerol and / or potassium sorbate, and the biosurfactant includes rhamnolipid and / or sophorolipid. This invention prepares a fruit and vegetable preservative solution with strong wetting and ethylene inhibition effects by encapsulating 1-methylcyclopropene with cyclodextrin and compounding it with nanocellulose, a film-forming agent, a plasticizer, and a biosurfactant.

The invention relates to the technical field of fruit and vegetable fresh-keeping, and discloses a fresh-keeping method suitable for blueberries, which comprises the following steps: pretreating blueberry fruits, packaging and sealing the pretreated fruits and a composite fresh-keeping preparation, and storing at low temperature, the method is characterized in that the composite fresh-keeping preparation can realize quick release of 1-methylcyclopropene (1-MCP) and delayed and long-acting release of sulfur dioxide; the preparation has a multi-layer structure, a delay active layer containing anhydride and sulfite is arranged between a rapid reaction layer containing 1-MCP and a control layer containing a humidity threshold value control agent, and programmed sequential release of two active gases is realized by utilizing chemical kinetics of humidity threshold value activation and anhydride slow hydrolysis. The method effectively inhibits physiological senescence and microbial spoilage of the blueberries, remarkably prolongs the storage period, can better maintain the commodity quality such as fruit hardness and flavor, and reduces the risk of chemical residue at the same time.

The application discloses a kind of liquid phase 1-methylcyclopropene stable slow-release agent for fruit and vegetable flower preservation and its preparation method, mainly by active substance 1-methylcyclopropene and as solvent ionic liquid composition, while containing a small amount of surfactant and stabilizer;Preparation method is first dissolved in ionic liquid with suitable surfactant to prepare the solution containing surface activity 0.5%~8%, then control temperature is at 0~5 ℃, under stirring condition, continuously pass in 1-methylcyclopropene gas, 1-methylcyclopropene gas is dissolved after completion, then stir 3 hours, then stand aging certain time, can obtain liquid phase 1-methylcyclopropene stable slow-release agent, and the content of active component 1-methylcyclopropene is 0.01%~25%.The liquid phase 1-methylcyclopropene slow-release agent product obtained by the application has the characteristics of high content of effective component, long stable slow-release time, and the preparation process is simple and convenient to operate.

This invention belongs to the field of medicinal chemistry, specifically relating to a 3-hydroxy-oxidized indole derivative containing a Z-form 1,4-dicarbonyl olefin, its preparation method, and its applications. The 3-hydroxy-oxidized indole derivative containing a Z-form 1,4-dicarbonyl olefin provided by this invention has a novel structure and exhibits inhibitory activity against PTP1B protein, showing broad application prospects in the treatment of type II diabetes and cancer. Furthermore, this invention provides a method for preparing the aforementioned 3-hydroxy-oxidized indole derivative containing a Z-form 1,4-dicarbonyl olefin, which is prepared by a two-step reaction in an organic solvent using cyclopropene carboxylate and indigo as raw materials under the catalysis of a metal catalyst. The preparation method of this invention involves fewer reaction steps, uses inexpensive and readily available raw materials, is simple and safe to operate, has low cost, generates little waste, and features high atomic efficiency, good stereoselectivity, mild conditions, scalability, and high product value.

The invention discloses a hawthorn fruit fresh-keeping method by compounding 1-MCP and an ethylene removing agent, and solves the technical problems of high breathing intensity, high ethylene accumulation and fast quality reduction in the storage process of hawthorn fruits. Comprising the following steps: picking fresh hawthorns, removing softened and seriously dehydrated bad hawthorns, retaining hard fruits, and obtaining the fresh hawthorns which are complete in appearance and free from mildewing and softening; the preparation method comprises the following steps: cleaning fresh haws, sterilizing, airing, and pre-cooling; placing the hawthorn in a foam box, adding 1-methylcyclopropene powder to prepare a solution, and fumigating for 24 hours under a normal-temperature closed condition to enable the final concentration to be 1 mu L / L; putting the hawthorn fruits treated by the 1-methylcyclopropene into a polyethylene self-sealing bag containing an ethylene removal agent, and carrying out modified atmosphere packaging; and performing low-temperature plasma sterilization on the packaged haws, and then storing the haws at 4 + / -0.5 DEG C. The ethylene release rate is remarkably inhibited, the respiration intensity is effectively reduced, and fruit aging is delayed.

A support comprising: a magnetic core; and a polymeric coating over at least a part of a surface of the core, wherein the polymeric coating comprises a cation-binding group containing at least one cyclic structure, and wherein the polymeric coating comprises a copolymer derived from an aliphatic cycloacrylate and at least one additional acrylate, and wherein the polymeric coating comprises at least one resin having a carbon / oxygen ratio of 3:1 to 8:1.