42 results about "Free agent" patented technology

Formulations or delivery systems are provided for controlled release of therapeutically active agents. The delivery systems are composed of polymer and lipid materials and may be prepared as a gel, paste, solution, film, implant or barrier depending on the intended application. The polymer component of the matrix is the naturally occurring biomaterial, chitosan, or a mixture of chitin and chitosan. The lipid component may include phosphatidylcholine, phosphatidylserine, phosphatidylinositol, phosphatidyl or a mixture thereof. The delivery system may be used for delivery of hydrophilic agents, hydrophobic agents or combinations thereof. The therapeutically active agents may be formulated within the matrix as free agents or incorporated into particles. In a preferred embodiment the agents are incorporated into polymeric particles that are dispersed throughout the matrix.

A system and method for online fantasy sports management enables users to negotiate and conduct sports transactions, such as trading players, signing free agent players to a contract, and waiving players from their contract, in accordance with the actual rules and regulations of the professional sports league being simulated. Users can participate as fantasy managers of sports teams, or as fantasy agents with a stable of players as clients.

A coating system for floors, containinga) one or more agents in which, together or separately, a polymer or polymer / wax dispersion and aziridine and, where desired, a flatting component are present, for application on the floor in order to form a crosslinked base film that is not capable of being removed by wet chemical means, as well asb) an aziridine-free agent containing conventional floor-maintenance components, in particular a polymer or polymer / wax dispersion, for the purpose of generating a sacrificial film on said base film that is capable of being removed by wet chemical means.

A coating system for floors, containing a) one or more agents in which, together or separately, a polymer or polymer / wax dispersion and aziridine and, where desired, a flatting component are present, for application on the floor in order to form a crosslinked base film that is not capable of being removed by wet chemical means, as well as b) an aziridine-free agent containing conventional floor-maintenance components, in particular a polymer or polymer / wax dispersion, for the purpose of generating a sacrificial film on said base film that is capable of being removed by wet chemical means.

The invention relates to the technical field of stuck freeing agents used in oilfield drilling production, in particular to an acid-in-oil stuck freeing fluid and a production method and a use methodthereof. The acid-in-oil stuck freeing fluid comprises the components as follows: acid, diesel oil, a crude oil activating agent, an inhibitor, an iron ion stabilizing agent and balance of water. Theacid-in-oil stuck freeing fluid and a mud cake can instantaneously generate a chemical reaction to destroy the chemical structure of the mud cake and release ordinary differential sticking or extremedifferential sticking; a stuck freeing method has no adverse influence on the performance of a drilling fluid, no damage to a drilling string or a well wall, and the characteristics of short time andrapid effect taking, thereby greatly improving the speed for processing such accidents, saving time and reducing loss.

The invention relates to a magnesium-aluminum spinel composite baking-free plug bar. A plug bar head comprises the following raw materials: 15 to 25 percent of No. 18-36 magnesium-aluminum spinel, 20 to 30 percent of No. 70-120 magnesium-aluminum spinel, 30 to 35 percent of No. 325 magnesium-aluminum spinel, 8 to 12 percent of graphite powder, 1.5 to 3.5 percent of antioxidant, 2 to 4 percent of phenolic resin, and 3 to 7 percent of baking-free agent. A plug bar body comprises the following raw materials: 35 to 50 percent of No. 18-120 alpha-corundum aggregate, 25 to 35 percent of alpha-corundum aggregate, 20 to 30 percent of graphite powder, 1 to 3 percent of alumina powder, 1 to 5 percent of baking-free agent, and 3 to 5 percent of phenolic resin. The magnesium-aluminum spinel composite baking-free plug bar is formed by addition of the baking-free agent with special compositions, forming and low-temperature roasting. The product has the characteristics of strong slag erosion resistance, good thermal shock stability, high strength, erosion resistance, scour prevention, fire resistance, long service life, low production cost and so on, saves energy resources, and can meet the multi-furnace continuous casting performance requirement and the product quality requirement.

The invention discloses an ion-type rare-earth ore ammonium-free environment-friendly exploitation technique. The ion-type rare-earth ore ammonium-free environment-friendly exploitation technique comprises the following steps that an ammonium-free ore leaching agent with a certain concentration is injected through liquid injecting holes distributed in a stope to be subjected to an ion exchanging reaction with rare-earth ores so as to obtain mother liquid enriched in rare-earth positive ions; the mother liquid seeps and gathers into liquid collecting engineering such as matching of ore-layer natural water partition bottom plates or artificial liquid collecting roadways with liquid collecting flow guiding holes; and then the mother liquid is conveyed to a hydrometallurgy workshop through a main conveying pipeline, ammonium-free agents are used for impurity removal and precipitation to obtain rare-earth carbonate, and supernatant liquid is circulated back to a liquid preparation pool andthen subjected to pH valve adjustment and agent adding, and returns to the stope to serve as a new ammonium-free ore leaching agent. The ion-type rare-earth ore ammonium-free environment-friendly exploitation technique has the advantages that ammonium is avoided in the overall process, and environmental friendliness is achieved on soil and water bodies; production waste water is circularly and comprehensively utilized, and harmful waste discharging is avoided; and the leaching rate, liquid collecting rate and precipitating rate of the rare-earth ions are high, and the resource mining comprehensive recovery rate is increased.

The invention provides an oil-bases stuck freeing agent composition for drilling fluid and a preparation method for the oil-based stuck freeing agent composition. The composition contains span-80 or span-60, span-20 or span-40, alkyl benzene sulfonic acid, petroleum acid, poly acid and mineral oil. The preparation method includes pumping raw material components into a reaction kettle, stirring, heating to 65 DEG C-95 DEG C, heat-preserving, stirring for reacting for 120-180 minutes, cooling to the room temperature and discharging for packaging. A using method of the stuck freeing agent includes determining density of stuck freeing spotting fluid according to safe density of the drilling fluid needed on the spot, stirring water, diesel, kerosene, or other mineral oil and the stuck freeing agent, adding barite and stirring to form stuck freeing spotting fluid emulsion, pumping the formed emulsion into a sticking section for soaking to unfreeze, and continuously pumping into the stuck freeing spotting fluid at a speed of 0.16-0.36M3 / h at the soaking stage until the sticking is released. The oil-based stuck freeing agent composition for the drilling fluid is convenient to use on the spot, small in using amount, convenient to conventionally carry for drilling crew, the maximum using amount is 8.7% of the stuck freeing spotting fluid, fluctuation range of stuck freeing time is narrow, the stuck freeing time of the stuck freeing spotting fluid with a density of 2.28g.cm<-3> ranges from 80 minutes to 160 minutes.

An oil well blockage relieving and well freeing agent is applied to avoid well blockage accidents caused by accumulated dirt. The agent is characterized in that: the agent comprises the following compositions in weight percentage: a. 5.5 to 8 percent of polyoxyethylene nonyl phenyl ether NPD-100; b. 10 to 15 percent of polyoxyethylene nonyl phenyl ether NPD-200; c. 2.0 to 3.5 percent of hydrochloric acid; d. 20 to 25 percent of methanol; e. 0.05 to 0.2 percent of INTECHEM-02 fluorocarbon surfactant; and f. the balancing being water. The oil well blockage relieving and well freeing agent has the advantages that: a blockage relieving and well freeing agent aqueous solution of between 0.5 and 1 percent, which is applied to flush an oil well with a great displacement and can avoid the well blockage accidents caused by accumulated dirt, prolong a pump inspection cycle, and reduce oil well pump inspection cost and oil extraction cost.

The invention provides a detection method for online detection of the scale and corrosion inhibitor concentration in circulating cooling water. A cationic polyelectrolyte serves as a detection reagent, the detection reagent is added to a circulating cooling water sample, full mixing is performed, reaction is performed for 15-20 minutes, then an absorbance value of the reacted circulating cooling water sample is detected under the wavelength condition of 400-600 nm, and the scale and corrosion inhibitor concentration in the circulating cooling water is determined according to the absorbance value. The detection method is wide in application range, short in detection period, high in detection accuracy and good in stability and is not limited by the condition whether a scale and corrosion inhibitor is a phosphorus-containing or phosphorus-free agent. The detection device adopting the detection method can achieve online automatic detection, replace manual operation and eliminate various human factors and the influence of response time lag of all links and is simple in operation and low in operation cost. In addition, the circulating cooling water treatment control system composed of the online detection device can achieve whole-process management and automatic dosing control of circulating cooling water and is suitable for industrial application.

The invention relates to a micro-smoke sulfur-free agent for a firecracker. The micro-smoke sulfur-free agent for the firecracker is prepared from the following components in parts by weight: 30 parts of bamboo charcoal powder, 10-30 parts of potassium perchlorate, 10-20 parts of nanosiliver powder, 5-15 parts of nano rare earth oxides, 2-6 parts of charcoal powder, 2-5 parts of titanium sponge powder and 1-4 parts of agilawood powder. The firecracker using the agent provided by the invention is micro-smoke, sulfur-free and environment-friendly during combustion. The firecracker has fragrance of bamboo and agilawood during combustion, and the friction sensitivity, the impact sensitivity and the moisture absorption are superior to the state standards.

The invention discloses a salt-free pickling-free amphoteric polymer chrome-free tanning agent which is characterized in that according to the salt-free pickling-free amphoteric polymer chrome-free tanning agent, firstly, organic amine and fatty aldehyde with active alpha-H undergo Mannich reaction, a Mannich base midbody with a formyl group is obtained, and then, after an allyl monomer with the formyl group is generated in the original position of the midbody, the midbody, the allyl monomer with a cation and allyl acid undergo free radical polymerization, and the salt-free pickling-free amphoteric polymer chrome-free agent is obtained. The salt-free pickling-free amphoteric polymer chrome-free tanning agent is a polymer tanning agent containing the formyl group and has certain filling capacity, tanning properties of the salt-free pickling-free amphoteric polymer chrome-free tanning agent are rival with the properties of an existing aldehydes tanning agent, molecular weight is large, when the salt-free pickling-free amphoteric polymer chrome-free tanning agent is in use, a leather blank is free of pickling, salt pollution in the follow-up processes can be eliminated, carboxyl and amino contained by the agent can further prompt absorption to follow-up finishing materials by the leather blank, and the whole quality of a leather is improved. According to preparation of the salt-free pickling-free amphoteric polymer chrome-free tanning agent, air pollution due to raw materials is avoided, chrome and NaCl pollution of a traditional tanning agent is avoided, processes are reduced, silicate consumption is reduced, and cost is reduced.

Formulations or delivery systems are provided for controlled release of therapeutically active agents. The delivery systems are composed of polymer and lipid materials and may be prepared as a gel, paste, solution, film, implant or barrier depending on the intended application. The polymer component of the matrix is the naturally occurring biomaterial, chitosan, or a mixture of chitin and chitosan. The lipid component may include phosphatidylcholine, phosphatidylserine, phosphatidylinositol, phosphatidyl or a mixture thereof. The delivery system may be used for delivery of hydrophilic agents, hydrophobic agents or combinations thereof. The therapeutically active agents may be formulated within the matrix as free agents or incorporated into particles. In a preferred embodiment the agents are incorporated into polymeric particles that are dispersed throughout the matrix.

This invention discloses a binding material for producing industrial waterproof briquette capable of being pressurization-gasified without drying process. The binding material is powdery, and is formed by: pulverizing Sorel cement 50%, bentonite 15%, steel slag 20%, and graphite tailing 10%, and trisodium phosphate 5%, and mixing. The briquette produced from the binding material has such advantages as high cold strength, good waterproof property, convenient transportation, low cost, simple process, convenient maintenance, high thermal stability, high gasification rate, and good sulfur-fixation effect. The binding material can solve the problems of low waterproof capacity, low gasification rate, low combustion efficiency, low thermal strength and no air permeability faced by conventional briquette.

The invention discloses a secure socket layer acceleration method, which comprises the following steps: after detecting that handshake between a user side and an access layer is successful, carrying out SSL protocol handshake and encryption and decryption information separation through the access layer; controlling the OpenSSL to forward the encryption and decryption information to the proxy server through the access layer; after the proxy server receives the encryption and decryption information, controlling the proxy server to asynchronously call the acceleration card cluster based on the encryption and decryption information; after the secret-key-free agent node obtains the corresponding private key information based on the encryption and decryption information, controlling the secret-key-free agent node to send the private key information and the encryption and decryption information to the acceleration server; and controlling the acceleration server to perform encryption and decryption operation on the encryption and decryption information based on the private key information. The invention further discloses a secure socket layer acceleration device and equipment and a storagemedium. According to the method and the device, the acceleration server is arranged in the acceleration card cluster outside the block chain or the access layer of other services, so that the OpenSSLand the acceleration server are completely decoupled and do not influence each other, and service management is facilitated to upgrade in a version manner.

The invention discloses an efficient paint fog coagulant, a preparation method thereof and an application. The paint fog coagulant comprises a tack-free agent, a slow-release floating agent and a pH (potential of hydrogen) value regulating agent. The tack-free agent comprises a component a, a component b and a component c, wherein the component a is water-soluble cationic polymer, the component b is amphoteric metal salt and / or amphoteric metal salt polymer, and the component c is a surface active agent. The slow-release floating agent comprises anionic polymer, citric acid, sodium bicarbonate, sodium carbonate, mannitol and polyethylene glycol. The paint fog coagulant is applied to wet paint fog system circulating water and simple in use method, and over-spraying paint in the water can be efficiently and rapidly debonded, condensed and floated, so that the circulating water is conveniently reused. By the aid of the paint fog coagulant, painting operation environments can be effectively improved, water quality can be improved, circulating water efficiency is increased, the replacement frequency of the circulating water is reduced, and enterprise cost is saved.

The invention belongs to the technical field of dry spinning oil and particularly discloses a silicone-oil-free agent composition for spandex dry spinning. The silicone-oil-free agent composition is at least prepared from a hydrocarbon compound, isoalcohols or acid, higher fatty acid salt, an antistatic agent and a dispersing agent. The silicone-oil-free agent composition for spandex dry spinning has the advantages that the composition is clear and transparent liquid and has good anti-sticking isolation and unwinding performance, and oiled spandex filaments can be attached and compounded and adhere to one another, dyeing is easy and uniform, and the anti-static performance is excellent.

An exemplary acid pickling solution for treating a surface of a magnesium alloy workpiece. The acid pickling solution consists of 5 g / l to 30 g / l of citric acid, 1.5 g / l to 6 g / l of surface active agent, wherein the surface active agent is a water-soluble and silicone free agent. A method for treating a surface of a magnesium alloy workpiece is also provided.

The invention provides a medicine for removing parasites in body surfaces of pigs. The medicine is prepared from the following raw materials in parts by weight: 8 parts of betel nuts, 5 parts of flos sophorae, 7 parts of szechwan chinaberry leaves, 9 parts of ramuli euonymi, 5 parts of fructus carpesii abrotanoidis, 8 parts of tamarindus indica, 4 parts of finger citron, 7 parts of acorus calamus, 5 parts of upright datura flower, 12 parts of cortex meliae, 6 parts of quispualis indica, 4 parts of cortex granati, 9 parts of caulis clematidis armandi, 3 parts of broadleaf holly leaves, 4 parts of houttuynia cordata, 15 parts of reed rhizome, 3 parts of folium eriobotryae, 5 parts of eclipta alba, 5 parts of radix scrophulariae and 8 parts of schisandra chinensis. The medicine disclosed by the invention is used for removing parasites in the body surfaces of pigs; and the medicine is good in effect on preventing and controlling various parasites such as ticks, mites, lice and the like in the body surfaces, and the medicine is free from adverse effect on the pigs and is safe; therefore, the medicine is a pollution-free agent for preventing and controlling external parasites of pigs.

The invention relates to an acid bleaching and brightening method of fluff protein fibers. The method is mainly used for bleaching cashmere fibers under an acidic condition, and pretreating and dyeing the cashmere fibers after bleaching. The process of the method mainly comprises the following three steps of: 1, adding 2-5% of activating agent, 1-4% of bleaching promoter and 15-40% of oxydol at 30 DEG C, heating to 50-60 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 40-60 minutes, adding water for flushing, then adding 0.5-1.5% of bleaching protective agent and 1-3% of acetic acid at 30 DEG C, heating to 30-40 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 40-60 minutes, and adding water for flushing; 2, adding 1-4% of wash-free agent, treating for 30-45 minutes at room temperature, and adding water for flushing; and 3, adding a common additive for dyeing at 30 DEG C, adding 1-4% of wash-free agent at the same time, operating for 10 minutes, adding a needed dye, operating for 10 minutes, heating to 85-100 DEG C at a rate of 1 DEG C / min, maintaining the temperature for 30-45 minutes, adding water for flushing, and drying.

The invention relates to a palm oil based pipe free agent and a preparation method thereof. The pipe free agent is composed of the following components in parts by weight: 4 to 6 parts of organic soil, 0 to 4 parts of filtrate loss reducer, 4 to 5 parts of emulsifier, 1 to 3 parts of rapid osmotic agent, 1 to 3 parts of oleic acid, 60 to 90 parts of base oil, and 0 to 30 parts of water phase. The pipe free agent has the following advantages: (1) environment-friendly and easily available palm oil is taken as the basic liquid of the pipe free agent, the obtained palm oil based pipe free agent has an excellent pipe free performance and the pollution to the strata is reduced; (2) a rapid osmotic agent is added, the soaking time of the pipe free agent is shortened, the shortage of long soaking time of other pipe free agents is overcome, and the pipe free efficiency is higher; and (3) the used reagents are sufficient on the market, the self made reagents are easily available, the raw materials are abundant and easy to purchase, the time for the pipe free operation is reduced, and the drilling efficiency is improved.

One kind of dope eliminating adhesive compounds, the related eliminating adhesive compound contains the organic azotic compound including the -NH- group and the product of reacting with the aldehyde , the Mol ratio of the organic azotic compound including - NH- group and the aldehyde is not less than 1, the reactive temperature is 20-100degree C. The dope eliminating adhesive compound provided by the invention can make above 90% dopes eliminate the glutinosity in 0.5-30 minutes, which improves the efficiency of cleaning up dopes.

The invention discloses a wash-free agent. The wash-free agent comprises the following components in parts by weight: 1-4 parts of a fluorocarbon copolymer, 5-11 parts of fatty glyceride, 2-5 parts of dialkyl dimethyl ammonium salt, 7-10 parts of alkyl trimethyl ammonium salt, 10-15 parts of quaternary ammonium salt, 1-3 parts of nanocrystalline cellulose colloid and 80-88 parts of water, wherein nanocrystalline cellulose in the nanocrystalline cellulose colloid is in a rodlike structure. The wash-free agent has the beneficial effects that the nanocrystalline cellulose is rodlike, carries negative charges on the surface, carries plenty of hydroxy and has affinity with water, so the nanocrystalline cellulose colloid shows a homogeneous and stable state in the water phase; the nanocrystalline cellulose has the adsorption function, so the fluorocarbon copolymer is distributed on the surface of the nanocrystalline cellulose and the surface of the nanocrystalline cellulose has lower tension; alkyl trimethyl ammonium salt is like a long chain and carries positive charges which neutralize with the negative charges on the surface of the nanocrystalline cellulose, so the nanocrystalline cellulose bonded with the fluorocarbon copolymer is intertwined and bonded with alkyl trimethyl ammonium salt to form long chain protective substances.

The invention discloses a wash-free agent. The wash-free agent comprises the following components in parts by weight: 1-4 parts of a fluorocarbon copolymer, 5-11 parts of fatty glyceride, 2-5 parts of dialkyl dimethyl ammonium salt, 7-10 parts of alkyl trimethyl ammonium salt, 10-15 parts of quaternary ammonium salt, 1-3 parts of nanocrystalline cellulose colloid and 80-88 parts of water, wherein nanocrystalline cellulose in the nanocrystalline cellulose colloid is in a rodlike structure. The wash-free agent has the beneficial effects that the nanocrystalline cellulose is rodlike, carries negative charges on the surface, carries plenty of hydroxy and has affinity with water, so the nanocrystalline cellulose colloid shows a homogeneous and stable state in the water phase; the nanocrystalline cellulose has the adsorption function, so the fluorocarbon copolymer is distributed on the surface of the nanocrystalline cellulose and the surface of the nanocrystalline cellulose has lower tension; alkyl trimethyl ammonium salt is like a long chain and carries positive charges which neutralize with the negative charges on the surface of the nanocrystalline cellulose, so the nanocrystalline cellulose bonded with the fluorocarbon copolymer is intertwined and bonded with alkyl trimethyl ammonium salt to form long chain protective substances.

The invention relates to natural eco-friendly VOC-free vehicle washing water. The natural eco-friendly VOC-free car washing water comprises vegetable oil fatty acid ester and a nonionic surfactant such as tetrahydrofuran and / or propoxylated and / or ethoxylated C1-C10 alcohol, a mass ratio of the vegetable oil fatty acid ester to the nonionic surfactant is 20-98: 80-2, the vehicle washing water also comprises a second nonionic surfactant such as tetrahydrofuran and / or propoxylated and / or ethoxylated C11- C18 alcohol and water. Compared with the existing vehicle washing water, the natural eco-friendly VOC-free vehicle washing water utilizes natural green plant extract as a starting material and utilizes a solvent-free organic synthesis process so that the natural eco-friendly VOC-free vehicle washing water is very safe to a rubber blanket. All ingredients of the natural eco-friendly VOC-free vehicle washing water can be directly used for leather washing water so that leather washing water specially for cleaning a rubber blanket is avoided. All ingredients of the natural eco-friendly VOC-free vehicle washing water do not contain VOC and thus the natural eco-friendly VOC-free vehicle washing water is a real natural eco-friendly VOC-free agent. After cleaning printing parts, a printing process can be immediately carries out without drying.

The invention relates to a micro-smoke sulfur-free agent for a firecracker. The micro-smoke sulfur-free agent for the firecracker is prepared from the following components in parts by weight: 30 parts of bamboo charcoal powder, 10-30 parts of potassium perchlorate, 10-20 parts of nanosiliver powder, 5-15 parts of nano rare earth oxides, 2-6 parts of charcoal powder, 2-5 parts of titanium sponge powder and 1-4 parts of agilawood powder. The firecracker using the agent provided by the invention is micro-smoke, sulfur-free and environment-friendly during combustion. The firecracker has fragrance of bamboo and agilawood during combustion, and the friction sensitivity, the impact sensitivity and the moisture absorption are superior to the state standards.

The invention provides a method for preparing chloropropene by initiating high-temperature chlorination of propylene by a free agent. The method comprises the following steps: drying a propylene raw material and preheating to first preset temperature; adding the preheated propylene raw material, low-temperature chlorine and the free agent into a mixer simultaneously to mix; introducing the mixed materials into a reactor and controlling the reaction temperature to be stabilized at second preset temperature; introducing a reaction product into a heat exchanger and performing shock cooling to third preset temperature; introducing the reaction product after shock cooling into a prefrationation tower and controlling the temperature to be fourth preset temperature through liquid reflux by the prefrationation tower; and cooling and separating out chlorinated hydrocarbon substances in the reaction production from the bottom of the prefrationation tower, and introducing the excessive propyleneand hydrogen chloride gas in the reaction product into a propylene separation device from the top of the prefrationation tower. By the technical scheme, the reaction focuses on substitution reaction,so that the yield and the conversion rate of chloropropene are increased and generation of side reaction products is reduced while raw materials and energy are recycled completely.

The invention provides an oil-bases stuck freeing agent composition for drilling fluid and a preparation method for the oil-based stuck freeing agent composition. The composition contains span-80 or span-60, span-20 or span-40, alkyl benzene sulfonic acid, petroleum acid, poly acid and mineral oil. The preparation method includes pumping raw material components into a reaction kettle, stirring, heating to 65 DEG C-95 DEG C, heat-preserving, stirring for reacting for 120-180 minutes, cooling to the room temperature and discharging for packaging. A using method of the stuck freeing agent includes determining density of stuck freeing spotting fluid according to safe density of the drilling fluid needed on the spot, stirring water, diesel, kerosene, or other mineral oil and the stuck freeing agent, adding barite and stirring to form stuck freeing spotting fluid emulsion, pumping the formed emulsion into a sticking section for soaking to unfreeze, and continuously pumping into the stuck freeing spotting fluid at a speed of 0.16-0.36M3 / h at the soaking stage until the sticking is released. The oil-based stuck freeing agent composition for the drilling fluid is convenient to use on the spot, small in using amount, convenient to conventionally carry for drilling crew, the maximum using amount is 8.7% of the stuck freeing spotting fluid, fluctuation range of stuck freeing time is narrow, the stuck freeing time of the stuck freeing spotting fluid with a density of 2.28g.cm<-3> ranges from 80 minutes to 160 minutes.

A wash-free agent for outdoor clothing is prepared from, by weight, 1-3 parts of water-soluble chitosan, 1-2 parts of chitosan, 2-4 parts of butanediol, 0.8-1.2 parts of carbomer, 0.6-1 part of nanocrystalline cellulose colloid, 2-4 parts of fluorocarbon copolymer, 6-8 parts of fatty glyceride, 1-3 parts of lemon essential oil and 120-150 parts of deionized water. The wash-free agent has the advantages that the wash-free agent is independently used, or the clothing can be washed with a small amount of water after the wash-free agent is used, the wash-free agent is suitable for outdoor use, convenience is brought to an outdoor user, and inconvenience caused by direct washing with clear water is avoided; the wash-free agent is free of peculiar smells and harmless to the human body, and meanwhile a bacteriostatic effect is achieved on the surface of the clothing.

The invention discloses a chemical agent for controlling trunk damage by dendroctonus. The chemical agent is prepared by mixing the following components in parts by weight by stirring: 3-5 parts of verbenone, 12-17 parts of imidacloprid, 2-5 parts of omethoate, 1-8 parts of an emulsifying agent, 1-5 parts of a synergistic agent and 55-70 parts of a solvent. The chemical agent is a pollution-free agent, is non-toxic, pollution-free, stable in chemical properties and safe for humans and animals, has a very strong internally-absorbed insecticidal effect, can be absorbed into plants through stemsand leaves, can be transferred to unsprayed parts, and poisons the dendroctonus to cause death, and the effect of a mixed chemical agent is significantly better than the using effect of a single chemical agent; when the chemical agent is used for controlling the trunk damage by the dendroctonus, the chemical agent has very ideal environmental compatibility, avoids pollution to the environment andinfluence of the geographical environment on the control effect, has an obvious effect of repelling the dendroctonus, not only can repel the dendroctonus on a damaged tree, but also can prevent invasion of the dendroctonus into healthy pinus armandi.