294 results about "Nonanoic acid" patented technology

This invention provides methods and devices for spatially separating at least first and second components in a sample which in one exemplary embodiment comprises introducing the first and second components into a first microfluidic channel of a microfluidic device in a carrier fluid comprising a spacer electrolyte solution and stacking the first and second components by isotachophoresis between a leading electrolyte solution and a trailing electrolyte solution, wherein the spacer electrolyte solution comprises ions which have an intermediate mobility in an electric field between the mobility of the ions present in the leading and trailing electrolyte solutions and wherein the spacer electrolyte solution comprises at least one of the following spacer ions MOPS, MES, Nonanoic acid, D-Glucuronic acid, Acetylsalicyclic acid, 4-Ethoxybenzoic acid, Glutaric acid, 3-Phenylpropionic acid, Phenoxyacetic acid, Cysteine, hippuric acid, p-hydroxyphenylacetic acid, isopropylmalonic acid, itaconic acid, citraconic acid, 3,5-dimethylbenzoic acid, 2,3-dimethylbenzoic acid, p-hydroxycinnamic acid, and 5-br-2,4-dihydroxybenzoic acid, and wherein the first component comprises a DNA-antibody conjugate and the second component comprises a complex of the DNA-antibody conjugate and an analyte.

A high quality lubricant for hermetically sealed domestic air conditioner and refrigerator compressors, especially those using chlorine free hydrofluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some isopentanoic acid along with either or both of iso-nonanoic acid and dibasic acids such as adipic.

The invention relates to a new mixed micelle core-shell SiO2 / Fe3O4 nanometer solid phase extracting agent in the chemical analysis test instrument device field, which has the big specific surface area of the nanometer material, the strong magnetic separating property of the magnetic material, the good satiability of SiO2 shell layer and the good extraction property of the semi micelle and the absorption micelle, and is fit for the large scale batch preconditioning of bulk water sample, and has the small usage extracting agent, high efficient extraction, the simple operation, the high extracting speed, the friendly environment, the wide using range, the low cost and the reactivation property. Selecting bisphenol A(BPA), nonyl phenol(4-OP), octyl phenol (4-NP) as the represent of the hydrophobic pollution material and selecting perfluorine enanthic acid (PFHeA), perfluorooctanoic acid (PFOA), perfluorine octane sulfonic acid (PFOS), perfluorine n-nonanoic acid (PFDeA) or the like perfluorine compound as the represent of amphipathic nature pollution material, there are 0. 1g extracting agent and 50mg surface activator in 800ml environmental water simple, and the extracting ratio of the organic pollution materials is more than 90%.

There is provided a novel water-in-oil type emulsified cosmetic comprising a diester of neopentylglycol with isononanoic acid. Said cosmetic exhibits not only the refreshed feeling on use without unfavorable stickiness after application, but also proper oily feeling. There are obtained good affinity to the skin, little occurrence of creasing and / or make-up deterioration, no oily sheen upon the elapse of long periods of time after application, and little irritation to the skin and excellent safety to the skin. In addition, the present cosmetic is able to be removed with commercially available cleansing agents. Moreover, the dispersibility of pigments as well as the storage stability is excellent.A water-in-oil type emulsified cosmetic comprising (A) 10 to 60 parts by mass of a diester represented by the following formula (I):(B) 1.0 to 11 parts by mass of a nonionic surfactant, (C) 0.3 to 11 parts by mass of an oil-soluble and / or water-soluble thickener, (D) 0.1 to 30 parts by mass of fine particles, and (E) 5.0 to 75 parts by mass of water, wherein the total of (A), (B), (C), (D) and (E) is 100 parts by mass.

The present invention relates to radioactive magnetic fluids, process for preparing them and use thereof. Particularly, the present invention relates to the radioactive magnetic fluids for treatment or diagnosis of cancer, process for preparing them and use thereof. The radioactive magnetic fluids of the present invention include the component of Cu2+ which radiates a β-ray and γ-ray. The β radiation can effectively kill the tumor cells. Since the γ radiation are easily imaged with γ-camera, the magnetic fluids can be gathered to the treatment site with the radiograph under external magnetic field. Therefore, the radioactive magnetic fluids of the present invention can be used for treatment of cancer with minimal side effects. Also, the tightly bonded decanoic acid and nonanoic acid layer of the present invention not only increase particle-particle repulsion but also take hydrophilicity, to disperse homogeneously and stably the magnetic nanoparticles in water. Also, carboxylic acid of the surfactant is exposed to outside, to prevent the magnetic nanoparticles from being oxidized by air. Therefore, the radioactive magnetic fluids can be used as therapeutic drug or diagnostic reagent for cancer.

Provided are compositions for attracting and / or stimulating oviposition. The compositions comprise a suitable carrier and a bacterium capable of producing nonanoic acid, tetradecanoic acid, or methyl tetradecanoate; Bacillus thuringiensis; Lactococcus lactis; Klebsiella oxytoca; Shigella dysenteriae; Brevundimonas vesicularis; a supernatant of a culture of any of the these bacteria; nonanoic acid; tetradecanoic acid; or methyl tetradecanoate, or any combination thereof, at a concentration effective to attract the mosquito to a target. The compositions may be comprised within a kit or trap. Also provided are methods of attracting mosquitoes to a target.

A high quality lubricant for compressors operated during at least part of their compression cycle at temperatures above normal human comfort temperatures, such as most automotive air conditioners, especially those using chlorine free hydro-fluorocarbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some iso-pentanoic acid along with one or more of iso-nonanoic acid, isooctanoic acid, and dibasic acids such as adipic. When the mixture includes about 7% adipic and amounts of branched C8-9 and C5 monobasic acids in a ratio of at least 0.75:1.00, the esters formed have excellent solubility for paraffinic and naphthenic mineral oils and are therefore especially well suited for lubricating vehicle air conditioners formerly containing chlorine containing heat transfer fluids and mineral oil lubricants.

Aquaculture net cage antifouling paint comprises the following components of zinc acrylate resin, diisononyl phthalate, nano-silver powder, nonanoic acid vanillyl amide, zinc pyrithione, algaecide preventol A6, 10-35 parts of zinc oxide by weight, wetting dispersant, anti-settling agent, talcum powder and an organic solvent. The invention further discloses a preparation method of the antifouling paint. Compared with the prior art, the antifouling paint and the preparation method thereof have the advantages that the compounded antifouling agent has complementary advantages, the existing antifouling agent system is widened, excellent killing property for a plurality of marine fouling animals and algae is brought, no poison and no residue properties are realized. An antifouling coating has certain flexibility, and improves the adhesion, the mechanical performance and the durability.

The present invention provides a formula of a moisturizing lipstick. The formula of the moisturizing lipstick comprises hydrogenated cocoglycerides, tridecyl alcohol trimellitate, ethylhexyl palmitate, polyisobutylene, isononyl acid isononyl ester, hydrogenated polydecene, polyethylene, isohexadecane, diisostearyl malate pentaerythritol tetraisostearate, etc. The above raw materials are mixed according to a specific ratio, so that the formula of the moisturizing lipstick improves a skin moisturizing effect of the lipstick. Besides, a good viscosity control is conducted to improve moisture retention of lips by the lipstick, and the lipstick repairs deep layer skin and also is improved in gloss, clear and transparent in appearance, bright in color and luster, moisturized and smooth, good inmoisturizing performances and non-toxic and non-irritating to the skin of the lips.

The invention relates to a fatty acid composition, which is diluted at normal temperature and in cold water to form solution used for cleaning of sterilization, fungicide and antivirus. The fatty acid composition comprises at least the following components: component A: food fatty acid comprising at least octyl decanoic acid and nonanoic acid; component B: surfactant comprising alkane sulfonate; component C: acid. The fatty acid composition has the advantages that the fatty acid composition or the diluted solution thereof has good stability, bactericidal and antiviral activity under the water temperature of 4-20 DEG C, no phase separation or crystallization, thus having safer use performance, and active components are low in cost, having more broad-spectrum bactericidal activity which can kill various bacteria, epiphytes and viruses. The fatty acid composition or the diluted solution thereof can be used for sterilization, fungicide and antivirus, which has high-efficient and quick killing effect; the sterilizing rate can reach more than 99.999 percent with contact time less than 1 minute; The fatty acid composition or the diluted solution thereof also has strong cleaning ability, and can keep effective even in hard water; the killing ratio for poliovirus reaches 99.9999 percent and the poliovirus can be killed immediately.

The invention relates to the field of drug synthesis, and in particular relates to a preparation method of an antidepressant drug-vilazodone. The preparation method is characterized by comprising the following steps of: protecting a 1-location nitrogen atom of 5-cyano benzopyrrole used as an initial raw material through utilizing toluenesulfonyl, carrying out 3-location Friedel-Carfts acylation, and selectively reducing carbonyl into methylidyne so as to obtain 1-tosyl-3-(4-chlorobutyl)-5-cyano benzopyrrole; reacting the 1-tosyl-3-(4-chlorobutyl)-5-cyano benzopyrrole with 5-(piperazine-1-radical) benzofuran-2-nonanoic acid-ethyl ester hydrochloride, hydrolyzing through one step, and removing tosyl and ethyl at the same time so as to obtain 5-(4-(4-(5-cyan-1H-benzopyrrole-3-radical) butyl) piperazine-1-radical) benzofuran-2-carboxylic acid; finally, amidating so as to obtain vilazodone, and salifying vilazodone with hydrogen chloride so as to obtain hydrochloric acid vilazodone. The method can be used for overcoming a plurality of defects of a conventional synthetic method, and has the advantages of easiness in raw material acquisition, high yield, good selectivity, convenience in operation, suitability for industrial production and high application value.

The invention discloses a nursing agent for skin moisturizing and repairing. The nursing agent for skin moisturizing and repairing comprises the following components by mass percentage: 0.05 0.15% ofdisodium EDTA, 0.5-3.0% of nicotinamide, 2.0-5.5% of glycerin, 2.5-5.5% of propylene glycol, 0.05-0.35% of xanthan gum, 0.05-0.5% of sodium hyaluronate, 0.15-0.5% of p-hydroxyl acetophenone, 1.0-5.0%of caprylic / capric triglyceride, 1.0-3.0% of polydimethylsiloxane, 1.0-5.0% of isononyl isononanoate, 0.5-5.0% of jojoba seed oil, 0.5-2.5% of avocado tree fruit oil, 1.75-10.5% of repair essential oil, 0.05-0.5% of fullerenes, 0.35-2% of repairing essence, 0.2-3.5% of cetostearyl alcohol, 1.0-2.5% of cetearyl olivate, 1.0-2.5% of sorbitan olivate, 0.1-1.0% of lecithin, 0.5-5.0% of oligopeptide-1, 0.1-0.5% of D-panthenol, 0.5-2.5% of a Centella asiatica extract, 0.5-2.5% of 1,2-hexanediol, and the balance of deionized water. The product of the invention can quickly improve the moisture retention of the skin, obviously improves the dryness of the skin, increases the moisture content in the skin, and makes the skin appear young. .

A toxicological friendly antifreeze composition having improved thermal stability is provided. In one embodiment, the antifreeze composition comprises from 5 to 80 wt. % of an aqueous freezing point depressant selected from alkali metal salts of acetates, formates, proprionates, adipiates, and succinates, and mixtures thereof; 0.1 to 10 wt. % of at least one of a 2-ethylhexanoic acid, isononanoic acid and 3,5,5-trimethylhexanoic acid; and 0.1 to 10 wt. % of at least one of octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, neodecanoic acid, benzoic acid, 2-hydroxybenzoic acid, p-terbutylbenzoic acid, and mixtures thereof. In one embodiment, the composition is employed as a concentrate in admixture with 10 to 90 wt. % water.

The invention belongs to the field of water body pollution control, and relates to a preparation method and application of a slow release algistat based on compound allelochemical. The compound allelochemical slow release algistat is characterized in that three kinds of compound allelochemical including gallic acid, n-nonanoic acid and 2-methyl-acetoacetic ester (EMA) are selected for preparing the slow release algistat according to the proportion, a natural high-molecular compound, namely sodium alginate, is selected to be used as a slow release carrier, and a 3%-5% sodium alginate solution and a 3%-5% calcium chloride are subject to gelling forming to obtain the slow release algistat. By means of the preparation method and application, the time length of pesticide effects on restraining algae growth can be prolonged; and meanwhile, the problem that the slow release algistat cannot be effectively used due to flotation along with wind and sedimentation in the using process is solved.

The invention discloses color-variable printing ink capable of changing colors at different temperatures. The color-variable printing ink comprises cholesteryl nonanoate, C8 aliphatic polyoxyethylene ether, cholesteryl oleylcarbonate, cholesteryl benzoate, acrylate emulsion, 304 silicone emulsion, ethyecellulose, chloroform, isopropanol, gelatin, microcrystalline wax, Arabic gum and polyacrylamide. The printing ink prepared according to the invention can have the following five colors in total within a temperature range of 37 DEG C to 40 DEG C, namely, transparent, reddish orange, green, cyan and purple.

A silicone rubber sponge-forming emulsion composition is provided that, even when the quantity of reinforcing silica filler is increased, does not exhibit a decline in emulsion stability, avoids defects in cell morphology of the sponge, and avoids a substantial increase in hardness of the sponge. A method of producing a silicone rubber sponge from this composition is also provided. The A silicone rubber sponge-forming emulsion composition comprises (A) 100 weight parts of a liquid diorganopolysiloxane that has at least two silicon-bonded alkenyl groups in each molecule, (B) 1 to 50 weight parts of a reinforcing silica filler comprising (b1) a fumed silica and (b2) a precipitated silica in a (b1) / (b2) weight ratio of 0.01 / 1 to 30 / 1, (C) 50 to 250 weight parts of water that contains (c) a smectite clay, (D) 0.1 to 7 weight parts of a sorbitan fatty acid ester, (E) 0 to 10 weight parts of an isononanoic acid ester, (F) 0 to 10 weight parts of a Guerbet alcohol, and (G) a curing agent in a quantity sufficient to crosslink and cure component (A).

The invention discloses a concealer and a preparation method thereof. The concealer comprises glycerol, EDTA disodium, xanthan gum, magnesium sulfate, an emollient, an emulsifier, a stabilizer, a coloring agent, disteardimonium hectorite, a preservative and water, wherein the emollient is selected from cyclopentasiloxane, cyclohexanol siloxane, mineral oil, isononyl Isononanoate, polydimethylsiloxane, butylene glycol dicaprylate / dicaprate, and polyglyceryl-3 diisostearate; the emulsifier is selected from cetyl PEG / PPG-10 / 1 polydimethylsiloxane, PEG / PPG-15 / 15 polydimethylsiloxane, and sorbitan sesquioleate; the stabilizer is selected from lecithin, polyhydroxy stearic acid, isopropyl myristate, ethylhexyl palmitate, isostearic acid, and polyglyceryl-3 polyricinoleate; the coloring agent is selected from titanium dioxide, triethoxycaprylylsilane, CI77492, CI77491, and CI77499. The concealer has an effect of reducing the possibility of grease shining.

The invention discloses a preparation method of a clay-based composite phase-change energy storage deicing (snow melting) material. The preparation method is characterized in that a composite phase-change energy storage material is prepared from a low-temperature organic phase-change material and a clay material, wherein the low-temperature organic phase-change material is prepared by single-element or multi-element mixing of various organic phase-change materials and is then physically compounded with the treated clay to prepare the clay-based composite phase-change energy storage deicing (snow melting) material. The low-temperature organic phase-change material is selected from polyethylene glycol-300, polyethylene glycol-400, polyethylene glycol-500, polyethylene glycol-600, decyl alcohol, undecanol, dodecanol, heptylic acid, octanoic acid, nonanoic acid, capric acid, methyl laurate, methyl myristate, methyl palmitate, tetradecane, pentadecane, hexadecane, heptadecane, octodecane, nonadecane and the like. The clay material is selected from kaolinite, montmorillonite, bentonite, vermiculite, halloysite, sepiolite, attapulgite, perlite, diatomite, rectorite, zeolite, silicon dioxide, dolomite, calcite and illite. The prepared composite phase-change energy storage deicing (snow melting) material is proper in phase-change temperature (0-5 DEG C), high in phase-change latent heat and high in heat stability.

The invention discloses an algae inhibitor for verdigris microcystis aeruginosa. The algae inhibitor is composed of n-nonanoic acid and linoleic acid in the volume ratio of 1:1, the applicable concentration range of the algae inhibitor in verdigris microcystis aeruginosa ranges from 0.04mL / L to 0.08mL / L. Compared with the prior art, two different kinds of fatty acids, namely the n-nonanoic acid and the linoleic acid, are selected to be combined, after inhibition effects of the combined fatty acids are evaluated by means of three kinds of different evaluation systems, the result indicates that the combination of the fatty acids has excellent synergic inhibition effects indeed. Further, the algae inhibitor is low in cost, environment-friendly and safe.

The invention discloses a mixed fatty acid modified smell eliminating matt alkyd resin and a preparation method thereof. The mixed fatty acid modified smell eliminating matt alkyd resin comprises 6-10wt% of isocaprylic acid, 3-5wt% of isononanoic acid, 9-15wt% of oleic acid, 20-30wt% of polybasic acid anhydride, 18-25wt% of polyol, 25-33wt% of a solvent and 0.01-0.5wt% of an assistant. Low smell oleic acid with the oleic acid content of 50% or more is reasonably matched with isocaprylic acid or isononanoic acid in the above formula. Polyester produced in the invention has a high vitrification point, very good hardness, certain flexibility, good levelability and scratch resistance; and the dryness becomes better with the rising of the vitrification point, and a matt coating prepared by using the polyester as a base material can be coated multiple times to form a coat with extremely good transparency, good delustring effect and extremely good solvent release property, can be used as high grade smell eliminating matt alkyd resin with excellent performances, and can be widely used in the production of high grade furniture.

The invention discloses a honey essence having natural flavour of honey and a preparation method thereof; the honey essence is prepared from linalool oxide, glycerol triacetate, ethanol, propylene glycol, phenethanol, damascenone, ethyl maltol and honey base; the honey base is a composition of damascenone, rose geranium oil, 4-hydroxyl-2,5-dimethyl-3(2H) furanone, triethyl citrate, methyl anthranilate, vanillin, caproic acid, n-nonanoic acid, 2-acetylfuran, 2- methyl butyric acid, alpha-terpilenol, butyric acid, benzaldehyde, phenylethyl phenylacetate, phenethyl acetate, phenethyl butyrate and propylene glycol; the honey essence is prepared by mixing propylene glycol with ethyl maltol, heating, dissolving, cooling to room temperature and adding glycerol triacetate, ethanol, linalool oxide, phenethyl alcohol, damascenone and the honey base; and the honey essence disclosed by the invention has better honey sweet flavour.

A chemically amplified resist composition comprising a base polymer and an amine quencher in the form of a β-alanine, γ-aminobutyric acid, 5-aminovaleric acid, 6-aminocaproic acid, 7-aminoheptanoic acid. 8-aminooctanoic acid or 9-aminononanoic acid derivative having an unsubstituted carboxyl group has a high contrast of alkaline dissolution in rate before and after exposure and forms a pattern of good profile at a high resolution, minimal roughness and wide DOF.

The invention relates to an octanoic, nonanoic and decanoic (C8, 9, 10) fatty acids mixture with a pyrethroid. The invention also relates to methods of using the octanoic, nonanoic and decanoic (C8, 9, 10) fatty acids and pyrethroid mixture to achieve superior arthropod control.

The invention belongs to the field of pesticides, and particularly relates to a natural herbicide composition and application thereof. The natural herbicide composition is prepared from the following active ingredients in parts by weight: 1-90 parts of n-nonanoic acid and 1-90 parts of a pyroligneous solution. Compared with the conventional artificially synthesized herbicide sold in the market, the prepared natural herbicide composition provided by the invention has the characteristics of being safe, reliable, green, environment-friendly and better in weeding effect, and the like, and the prepared natural herbicide composition provided by the invention can be used for effective weeding.

The invention belongs to the technical field of food chemistry, and provides a method for measuring pyrethroid pesticides in grain by dispersion liquid micro-extraction-high performance liquid chromatography. Thymol or choline chloride is used as a hydrogen-bond acceptor, valproic acid, hexylic acid, heptanoic acid, caprylic acid, n-nonanoic acid or capric acid is used as a hydrogen-bond donor, the mole ratio of the hydrogen-bond acceptor to the hydrogen-bond donor is 1 / 5, 1 / 4, 1 / 3, 1 / 2, 1 / 1, 2 / 1, 3 / 1 or 4 / 1; a hydrophobic eutectic solvent formed by mixing the hydrogen-bond acceptor and the hydrogen-bond donor is used as an extraction agent, liquid micro-extraction is performed, and the pyrethroid pesticides in grain are measured by high performance liquid chromatography. The method provided by the invention has the advantages of being simple to operate, quick, sensitive, less usage of extraction agent, easy to collect, green and environment-friendly, can be used for detecting pyrethroid pesticides in a number of grain samples. The usage of harmful organic solvent can be avoided, and less extraction agent is used; and the method has the significant advantages of being simple and quick to operate, easy to collect, green and environment-friendly, and good in reproducibility.

The invention relates to a bioherbicide composition and application thereof and belongs to the field of agricultural chemicals. The bioherbicide composition is missible oil, wettable powder, emulsion in water and water dispersible granules prepared from active ingredients including nonanoic acid and acetic acid, minor ingredients including a solvent, a carrier and a surfactant as well as other additives. By weight, the active ingredients account for 10-97% of the bioherbicide composition, the surfactant accounts for 1-8% of the bioherbicide composition, and the carrier and the other additives account for 2-80% of the bioherbicide composition. The bioherbicide composition can be used for directed spraying of urban courtyards and crop fields to control and kill gramineae, cyperaceae and broadleaf weeds and is wide in weeding spectrum, quick to act, high in control efficiency, safe and the like.

The invention discloses anti-blue-light multi-effect repair eye cream and a preparation method thereof. The anti-blue-light multi-effect repair eye cream is prepared from the following ingredients: isohexadecane, isononyl isononanoate, crambe abyssinica seed oil, cetostearyl alcohol, phytosterol oleate, tocopherol acetate, propyl hydroxybenzoate, phenoxyethanol, triethanolamine, brown algae extract, theta-glucan, menthe piperita leaf extract, chrysanthellum indicum extract, purslane extract, radix sophorae extract, geranium pelargonium extract, glycerin, sodium benzoate, bisabolol, farnesol, butanediol, glycerin polyether-26, bio-saccharide gum-1, 0.2% of hydrolysis sclerotium gum, lecithin, allantoin and glucosylrutin. The natural extract is added for compound use, and the compounding ratio is limited, rich nourishing ingredients are contained, blue light can be resisted, moisture is replenished, the skin around the eyes is moisturized, the delicate skin is repaired, dryness and dehydration phenomena are smoothed, tightness, elasticity and moistening are achieved, fine lines are reduced, skin aging is delayed, and the eyes are beautiful.

A disclosed organic herbicide formed by mixing plant essential oil, an aliphatic acid and an organic acid comprises the raw materials in percent by mass: 1%-90% of plant essential oil, 1%-90% of the aliphatic acid, 1%-90% of the organic acid, 5%-50% of a surfactant, and 1%-25% of water. The plant essential oil is one or more substances selected from clove oil, cassia oil and lemon essential oil. The aliphatic acid is one or a mixture of caprylic acid, nonanoic acid, capric acid, undecanoic acid and lauric acid. The organic acid is one of acetic acid, citric acid, oxalic acid and formic acid. The employed materials are natural and completely harmless to human body, and can be completely degraded by soil without residue. By utilizing different types of herbicide compositions and through the mixed effect and mutual synergic effect of the compositions, the obtained organic herbicide possesses efficient weeding activity, also the usage amount of the herbicide is reduced, and the herbicide is relatively economic when being used.

The invention relates to the field of aviation lubricating oil, and provides an aviation base oil to solve the problems that high temperature stability and low temperature pumpability cannot be simultaneously considered in the conventional base oil and the like. The aviation base oil is prepared from n-valeric acid, hexanoic acid, heptanoic acid, nonanoic acid, pentaerythritol and trimethylolpropane. A preparation method comprises the following steps of: raising the temperature to 140 to 170 DEG C under the protection of inert gas, reacting for 5 to 8 hours under the condition that the temperature is kept between 140 and 170 DEG C, reducing the temperature, adding the n-valeric acid, the hexanoic acid, the heptanoic acid and the nonanoic acid, heating under the protection of the inert gas, raising the temperature, reacting for 10 to 16 hours at the temperature of between 150 and 220 DEG C, deacidifying, reducing the temperature to be less than 180 DEG C, and filtering to obtain a product. The product has good high temperature performance and high stability; meanwhile, the product also has excellent low temperature performance as well as high low temperature pumpability and good startup performance, and is suitable for industrialized production.