138 results about "Decanedioic acid" patented technology

The invention belongs to the technical field of polyurethane elastomers, and particularly relates to a high-static-rigidity high-damping low-pressure-change polyurethane elastomer and a preparation method thereof. Comprising a polyol component and an isocyanate component, and the polyol component comprises polyol A, a chain extender, a stabilizer, a hydrolysis-resistant agent and a catalyst; the isocyanate component is prepared from isocyanate, polyhydric alcohol B and branched chain unit alcohol; the polyol A comprises amine ether polyol and polytetrahydrofuran ether polyol; the polyhydric alcohol B comprises bio-based hydrolysis-resistant polyhydric alcohol and polytetrahydrofuran ether polyhydric alcohol; the bio-based hydrolysis-resistant polyol is prepared by carrying out a reaction on sebacic acid, 1, 2-propylene glycol and 1, 4-butanediol; the branched-chain unit alcohol is prepared from tetrahydrofuran and isooctanol through a reaction. By introducing the bio-based hydrolysis-resistant polyhydric alcohol and branched chain monohydric alcohol, the damping effect is remarkably enhanced, and on this basis, through formula adjustment and raw material screening, the product toughness is greatly improved, the compression set is reduced, and the performance of the product in heavy haul railway application is effectively optimized.

The utility model discloses a cracking kettle for preparing sebacic acid by cracking castor oil. The device is characterized in that a cracking kettle body is divided into an upper-layer kettle and a lower-layer kettle, and the upper-layer kettle and the lower-layer kettle are separated by a separation plate; a plurality of gas dispersion channels are distributed on the isolation plate; the gas dispersion channel is made of a non-sticky high-temperature-resistant material, the gas dispersion channel is a bevel channel, and the inlet end and the outlet end are symmetrically arranged up and down; a feeding channel is arranged above the cracking kettle body, an internal channel is arranged at the top in the cracking kettle body, a through hole is formed in the isolation plate, and the internal channel penetrates through the through hole of the isolation plate and is communicated with the lower-layer kettle; the feeding channel penetrates into the cracking kettle body and is communicated with the internal channel; the inner channel is a double-layer pipeline, the inner space is a stirring rod channel, and the outer space is a feed liquid channel; the stirring rod penetrates through the stirring rod channel and extends into the lower-layer kettle; the stirring paddle is spirally arranged at the lower end of the stirring rod. The gas outlet can be protected, the gas outlet is prevented from being blocked by non-gas products, and smooth output of the gas products is guaranteed.

The invention discloses an anti-aging poly (butylene terephthalate)-sebacate copolymer and a preparation method thereof, and belongs to the technical field of high polymer materials, the anti-aging poly (butylene terephthalate)-sebacate copolymer comprises the following preparation raw materials: binary acid, dihydric alcohol, a cross-linking agent, a catalyst, a stabilizer, an anti-hydrolysis agent and an antioxidant; by adding the cross-linking agent, the catalyst, the stabilizer, the anti-hydrolysis agent and the antioxidant, the damp-heat aging resistance stability of the PBSeT resin is remarkably improved, the shelf life of a PBSeT product is prolonged, and meanwhile, the PBSeT resin has a certain bio-based content, so that the PBSeT resin can be used as a high-temperature-resistant material for the high-temperature-resistant high-temperature-resistant material for the high-temperature-resistant high-temperature-resistant high-temperature-resistant material. The requirements of some fields on the bio-based content can be met, the problem that the PBAT resin does not contain the bio-based can be solved, and the PBAT resin has a wide application prospect.

The invention relates to a preparation method of a low-temperature-resistant anti-freezing PVC cable material, and belongs to the technical field of power cables. According to the cold-resistant PVC cable material disclosed by the invention, the cold resistance of the PVC cable material at-40 DEG C is realized by cooperating the low-polymerization-degree PVC with the cold-resistant plasticizer dioctyl sebacate, the nitrile rubber powder, the diisononyl phthalate and the polytetrafluoroethylene, and the dispersity and the uniformity of the material are remarkably improved and the mechanical property of the material is improved through ultrasonic-assisted mixing.

To provide a decorative sheet having higher weather resistance by preventing occurrence of delamination or the like.SOLUTION: There is provided a decorative sheet 10 obtained by laminating a base material layer 1, a pattern layer 2, an adhesive layer 3, a transparent resin layer 4, and a surface protective layer 5 in this order, wherein the adhesive layer 3 contains an adhesive resin and a curing agent and further contains an ultraviolet absorber and a light stabilizer, the ultraviolet absorber contains a reaction product of 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-hydroxyphenyl and [(C10-C16 alkyloxy)methyl]oxirane, the light stabilizer contains a reaction product of a decanedioic acid bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl) ester, 1,1-dimethylethyl hydroperoxide and octane and the amounts added of these are 0.5 pt.mass or more and 5 pts.mass or less, respectively based on 100 pts.mass of the adhesive resin.SELECTED DRAWING: Figure 1

The present disclosure relates to a flexible multi-layered material. An embodiment consistent with the disclosure has a plurality of poly(vinyl chloride)—PVC—layers, wherein at least one of the plurality of PVC layers is a foam layer, wherein each of the layers of the plurality of PVC layers comprises up to 60% (w / w) of a phthalate-free plasticizer, and wherein the phthalate-free plasticizer is selected from the group consisting of: phosphate, trimellitate, adipate, citrate, sebacate, polyester, vegetable oil, and mixtures thereof, and wherein the solubility of the phthalate-free plasticizer in the PVC is at least 13 (J·cm−3)1 / 2.

An environmentally friendly metal cutting oil with high load-bearing and high wear resistance, belonging to the technical field of metal cutting fluids. The cutting fluid is composed of diisooctyl sebacate, phosphate amine salt extreme pressure additives, borate series additives and sulfurized extreme pressure additives, the sulfurized extreme pressure additives are sulfurized fatty acid esters and dialkyl pentasulfide (Rc2540). The load-bearing capacity (Pb) of the cutting oil can reach more than 920N, and the low-load long-wear wear spot diameter (Db) can be less than 0.35 mm.

The invention provides aliphatic polyester and application thereof, the aliphatic polyester comprises dibasic acid residues and dihydric alcohol residues, the dibasic acid residues comprise the following residues: a1) 65-90 mol% of succinic acid residues based on 100 mol% of the total mole percentage of a1) and a2), and a2) 10-20 mol% of dihydric alcohol residues based on 100 mol% of the total mole percentage of a1) and a2); a2), 10-35 mol% of sebacic acid residues based on 100 mol% of the total mole percentage content of a1) and a2); the dihydric alcohol residues are selected from 1, 4-butanediol residues which are at least equal to the dibasic acid residues in molar weight; the aliphatic polyester contains an oligomer of which the number-average molecular weight measured by GPC is less than 1000, and the mass percentage content of the oligomer of which the number-average molecular weight measured by GPC is less than 1000 in the aliphatic polyester is 0.08-3.5 wt%. The packaging film prepared from the aliphatic polyester has good food contact performance and uncoiling performance.

The invention relates to the technical field of high polymer materials and protective coatings, and discloses a single-layer anti-ultraviolet heavy-duty powder coating as well as a preparation method and application thereof. The preparation method of the single-layer anti-ultraviolet heavy anti-corrosion powder coating comprises the following steps: adding carboxyl polyester resin, triglycidyl isocyanurate, modified nano silicon dioxide, modified chitosan, 2-(2H-benzotriazole-2-yl)-4, 6-di-tert-pentylphenol, bis (2, 2, 6, 6-tetramethyl-4-piperidinyl) sebacate, flaky aluminum powder, zinc phosphate, BYK-3920, 2-hydroxy-1, 2, 4-triazole-2-yl)-1, 3, 4-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5-triazole-2-yl)-1, 3, 5- The preparation method comprises the following steps: stirring and mixing 2, 2-diphenylethanone and gamma-aminopropyltriethoxysilane at room temperature at 300-350rpm for 10-15min to obtain a mixture, extruding the mixture through a double-screw extruder at the extrusion temperature of 110-120 DEG C and the screw rotation speed of 450-500rpm, and grinding to obtain the single-layer anti-ultraviolet heavy-duty anticorrosive powder coating. The single-layer anti-ultraviolet heavy anti-corrosion powder coating can be applied to metal base material protection. The coating prepared by the invention has good ultraviolet resistance and corrosion resistance.

The invention belongs to the technical field of asphalt production, and discloses high-elasticity modified asphalt which comprises a matrix, a plasticizer and a stabilizer, the plasticizer is selected from at least one of dioctyl phthalate, diethyl sebacate, diethyl adipate, dioctyl adipate, alkyl sulfonate and furfural extract oil; the stabilizer is selected from at least one of sulfur, tetramethylthiuram disulfide, maleic anhydride and m-phenylenediamine, the swelling capacity of SBS in the asphalt is improved to a certain extent through the plasticizer, and meanwhile, the stabilizer is used for resisting oxidative denaturation of the asphalt in the long-term use process; in addition, the invention further discloses a preparation method of the high-elasticity modified asphalt.

The present invention relates to the field of skin cosmetics, and in particular to a soothing, long-lasting, sun-protective isolation cream and its preparation method. The isolation cream's raw materials include butylene glycol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenylbenzimidazole sulfonic acid, butyloctanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane / polymethylsilane silsesquioxane crosspolymer, ethylhexyl triazone, p-hydroxyacetophenone, disteardimonium hectorite, aluminum hydroxide, Piper mesenteriae leaf / root / stem extract, Gentiana scabra extract, and water. The isolation cream prepared by the present invention has good soothing, long-lasting, and sun-protective effects, as well as excellent free radical resistance and moisturizing effects. It is easy to apply and can improve skin gloss to a certain extent.

The present invention relates to a cosmetic preparation comprising at least one mineral sunscreen filter, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, polyhydroxystearic acid, isostearic acid, polyglyceryl-2 oleate and polyglyceryl-2 stearate; and the use of the preparation for protection against sunlight.

The invention discloses a preparation method of a high-flatness silicon nitride substrate. The preparation method comprises the following steps: preparing organic glue, ball-milling and mixing, defoaming and aging, carrying out tape casting, blanking and applying isolation powder, carrying out low-temperature flattening treatment, discharging glue in air, carrying out pressure sintering, and removing the isolation powder. The prepared silicon nitride substrate is good in flatness, low in roughness and high in mechanical property. A composite plasticizer of di (2-ethylhexyl) terephthalate and dibutyl sebacate is adopted, so that the fracture toughness of the material is improved; the polyethyleneimine and sodium tripolyphosphate composite dispersing agent is adopted, so that the roughness of the material is reduced; the cyclohexanone and white oil composite homogenizing agent is adopted, so that the warping degree of the material is reduced, and the smoothness of the material is improved.

This invention discloses a method for preparing impact-resistant and cold-resistant polyvinyl chloride (PVC) conduit, belonging to the field of PVC material technology. In this invention, butyl rubber is complexed with dioctyl sebacate and active silica under the initiation of tert-butyl hydrogen peroxide. This complex acts as a flexible dispersed phase in the PVC matrix, effectively absorbing and dissipating impact energy and lowering the glass transition temperature of the material. This allows the conduit to maintain excellent toughness and crack resistance even at low temperatures. Furthermore, it works synergistically with impact modifiers in the system. Ethylene-vinyl acetate copolymer provides elastomer toughening, while maleic anhydride-styrene graft copolymer acts as a highly efficient compatibilizer and interfacial reinforcing agent. The compounded structure forms a toughening network, achieving toughening from molecular chain segment movement to microstructure, thus improving impact strength. Subsequent addition of reinforcing fibers of the same specification further enhances the strength of the conduit. Overall, this results in a PVC conduit with excellent strength, impact and cold resistance, and thermal properties.

The application discloses a manufacturing process of a stamping processing protective film, which comprises the following steps: step one, stirring and mixing zinc oxide, polysebacic acid-decanediol diol and dicyclohexyl carbodiimide at 50-60 DEG C to obtain material A; step two, putting 100 parts of low-density polyethylene with a melt index of 0.5-5 g / 10 min, metallocene linear low-density polyethylene with a melt index of 1.8-2 g / 10 min, oleic acid amide, zinc stearate, stearate and an antioxidant into a mixer, uniformly mixing and then extruding and granulating in a double-screw extruder to obtain material B; step three, putting material A, material B and terpolymer polypropylene into a banbury mixer, discharging after banburying for 10-30 min to obtain a master batch; and step four, blow molding the master batch to obtain a polyethylene base material layer. The protective film improves the elongation at break of the film and also improves the puncture resistance of the protective film.

The invention relates to the field of cosmetics for skin, in particular to soothing, makeup-holding and sun-screening makeup base cream and a preparation method of the soothing, makeup-holding and sun-screening makeup base cream. The sun screen is prepared from the following raw materials: butanediol, isododecane, polydimethylsiloxane, ethylhexyl salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, a vinyl polydimethylsiloxane / polymethylsilane silsesquioxane cross-linked polymer, ethylhexyl triazinone and p-hydroxyacetophenone, and the sun screen is prepared from the following raw materials: ethylene glycol, isododecane, butyl octanol salicylate, phenyl benzimidazole sulfonic acid, butyl octanol salicylate, diisopropyl sebacate, diisopropyl adipate, vinyl polydimethylsiloxane and polymethylsilane silsesquioxane. The traditional Chinese medicine composition is prepared from the following raw materials: disteardimonium hectorite, aluminum hydroxide, kava pepper leaf / root / stem extract, radix gentianae extract and water. The make-up base prepared by the invention has good soothing, makeup-holding and sunscreen effects, has excellent free radical resisting and moisturizing effects, is easy to smear, and improves the skin glossiness to a certain extent.

To provide a non-fire-spreading grease composition with excellent non-flammability and water resistance, and also to provide a bearing or gear containing the non-fire-spreading grease composition.SOLUTION: The non-fire-spreading grease composition according to the present invention comprises the following materials (a) to (d): (a) as a thickening agent, a diurea compound represented by the following formula (1): R1-NHCONH-R2-NHCONH-R3 (1) (wherein R2 represents an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 may be the same or different and represent an aliphatic hydrocarbon group having 8 to 20 carbon atoms or an aromatic hydrocarbon group having 6 to 15 carbon atoms, the proportion of aliphatic hydrocarbon groups in the total of R1 and R3 is 50 to 100 mol%); (b) a base oil having a kinematic viscosity of 300 mm2 / s or more at 40°C; (c) at least one selected from the group consisting of rice wax, carnauba wax, and montanic acid derivatives; and (d) at least one selected from the group consisting of organic sulfonic acid metal salts, sodium sebacate, and glycerin.SELECTED DRAWING: None

The invention belongs to the field of cables, and particularly relates to an aluminum alloy conductor cable suitable for a wind generating set, which sequentially comprises a cable core layer, a reinforcing layer, an insulating layer and a sheath layer from inside to outside, the cable core layer is of a stranded structure and is formed by arranging five layers of round aluminum alloy monofilaments with the diameter of 0.3-0.5 mm in a concentric circle layering mode. The reinforcing layer is an aramid fiber woven layer; the components of the insulating layer comprise ethylene propylene diene monomer, PP / EPDM type thermoplastic dynamic vulcanized rubber, a liquid olefin compatibilizer, a nano talc sheet, a peroxide cross-linking agent, an antiozonant and a flame-retardant smoke suppressant; and the sheath layer comprises the following components: chlorinated polyethylene, diisooctyl sebacate, nano magnesium hydroxide, epoxidized soybean oil, a barium-zinc stabilizer and an anti-UV agent. According to the cable, through an innovative cable core structure and a coating layer material formula, a traditional copper conductor is replaced by a high-cost-performance aluminum alloy conductor, and meanwhile, the performance requirement of wind power generation under a harsh dynamic working condition is met.

The invention provides polyester resin for a self-dusting and high-hardness powder coating as well as a preparation method and application of the polyester resin, and belongs to the technical field of powder coatings. The polyester resin is obtained by mainly polymerizing trimesic acid, N, N-bis (3-aminopropyl) methylamine, 1, 6-hexamethylenediamine, dodecanedioic acid, 2, 5-dimethyl-2, 5-hexanediol, 1, 3-malonic acid, sebacic acid, triethylene glycol, 2, 3-naphthalene dicarboxylic anhydride and the like which are used as main raw materials, and polyester resin 1 and polyester resin 2 which are greatly different in characteristic are respectively prepared by adopting a double-kettle combination mode. And then mixing at high temperature. Good matting and self-frosting effects can be achieved without adding a sand texture agent, and the hardness of a coating film is high.

The invention provides a biodegradable polyester polymer for an adhesive, which is prepared from a polyneopentyl sebacate oligomer, aiming at solving the problem that the existing polymer prepared by using a cancerogen isocyanate or using a polyhydric alcohol or adding a tackifier is non-biodegradable. The invention further provides the biodegradable polyester polymer for the adhesive, which is prepared from the polyneopentyl sebacate oligomer. The biodegradable polyester polymer has excellent solubility and storage stability, and the adhesive composition containing the biodegradable polyester polymer can exhibit excellent adhesive force and peel strength without adding an additional tackifier.

The invention belongs to the technical field of cable sheath materials, and particularly discloses a fireproof radio frequency cable for wireless communication and a preparation method thereof. The invention relates to a fireproof radio frequency cable for wireless communication, which comprises a copper core conductor, a ceramic fiber insulating layer, a copper strip embossing layer, a ceramic non-woven fabric layer, a steel strip wrapping layer, a high-temperature-resistant layer and a cable sheath, comprising the following raw materials: 50-60 parts of nitrile rubber, 22-25 parts of acrylate rubber, 13-16 parts of chlorinated polyethylene, 2-3 parts of a silane coupling agent, 17-19 parts of a composite reinforcing material, 1-2 parts of dioctyl sebacate, 1-3 parts of an antioxidant 1010, 5-8 parts of POE-g-GMA, 3-5 parts of a flame retardant and 2-4 parts of calcium stearate. The composite reinforcing material is composed of a silicon carbide compound, glass composite fibers and titanium dioxide. The durable, weather-proof and flame-retardant outer sheath is obtained, and is suitable for normal work in daily use and severe environments.

The application discloses a cold-resistant PVC conveying belt surface layer material and a light conveying belt and belongs to the technical field of PVC materials. The cold-resistant PVC conveying belt surface layer material comprises the following raw materials in parts by weight: 100 parts of PVC paste resin, 5-24 parts of a cold-resistant agent, 1.5-3 parts of an anti-aging agent, 12-23 parts of a fluorine-containing plasticizer, 3-8 parts of a fluorosilicon resin, 2-7 parts of a polyurethane elastomer, 2-6 parts of a flame retardant, 1-3 parts of nano calcium carbonate, 0.5-1.5 parts of an antioxidant, and 0.6-4 parts of a fluorosilicon surfactant. The cold-resistant PVC conveying belt surface layer material provided by the application can maintain excellent performance in a cold environment. The decanedicarboxylic acid dioctyl ester phase change material releases heat at low temperature, improving the cold resistance of the coating. In addition, the surface layer material is endowed with excellent anti-aging performance through the anti-freezing protection of glycerol, the antioxidant effect of cerium ions and the self-repairing performance of dopamine hydrochloride, so that the conveying belt can maintain stable performance in a low-temperature environment and effectively prolong the service life.

The invention belongs to the field of pouring resin, and particularly relates to bi-component pouring resin and a pouring method of a stator iron core. The double-component casting resin provided by the invention comprises a component A and a component B, wherein the component A comprises the following components: polyethylene glycol modified bisphenol A epoxy resin, polyether hyperbranched epoxy resin, an epoxy silane coupling agent KH-560, an epoxy silane coupling agent, first silica powder and second silica powder; the component B is prepared from the following components: methyl tetrahydrophthalic anhydride, polysebacic anhydride, a boron trichloride-n-octyl dimethyl amine compound, an epoxy group silane coupling agent KH-560, an epoxy group silane coupling agent A-187, first silicon micro powder and second silicon micro powder. The double-component casting resin provided by the invention is low in initial viscosity and long in gelation time, the operability of the casting process can be effectively improved, gaps are prevented from being formed, and a casting body formed after curing has relatively good glass transition temperature, cracking resistance and mechanical strength.

The invention relates to the technical field of high polymer materials, in particular to epoxy modified polyester resin, a preparation method thereof, an adhesive and a composite film. The preparation raw materials of the epoxy modified polyester resin comprise dibasic acid, dihydric alcohol, unsaturated monomers and modified monomers. The binary acid is selected from one or more of terephthalic acid, isophthalic acid, adipic acid, succinic acid, sebacic acid and 1, 4-cyclohexanedicarboxylic acid; the dihydric alcohol is selected from one or more of ethylene glycol, 1, 2-propylene glycol, neopentyl glycol and 1, 4-cyclohexanedimethanol; the unsaturated monomer is selected from one or more of maleic anhydride, itaconic acid and fumaric acid; the modified monomer is selected from glycidyl methacrylate; the number-average molecular weight of the epoxy modified polyester resin is 2500 to 4000; the number-average functionality of epoxy groups of the epoxy modified polyester resin is 3.5 to 4.5. The adhesive prepared from the epoxy modified polyester resin is resistant to high-temperature cooking and high in safety, has high bonding strength and flexibility, and is suitable for large-scale industrial production.

The application provides an aliphatic polyester, a polyester composition containing the same and application thereof, and belongs to the technical field of degradable polyester materials. The aliphatic polyester contains diacid residues and diol residues; the diacid residues contain the following residues: a1), 61.2-69.1 mol% of succinic acid residues based on 100 mol% of the total molar percentage content of a1) and a2); a2), 30.9-38.8 mol% of sebacic acid residues based on 100 mol% of the total molar percentage content of a1) and a2); the diol residues are selected from at least equimolar amount of 1,4-butanediol residues with the diacid residues; the mass percentage content of oligomers with a number average molecular weight < 650 in the aliphatic polyester is 1.09-3%; and the molecular weight distribution coefficient of the aliphatic polyester is 1.72-2.83. The aliphatic polyester has good high-speed film blowing forming performance, excellent opening performance after high-speed film blowing forming, and excellent puncture resistance.

The invention discloses an extraction agent as well as a preparation method and application thereof. The extraction agent comprises a phosphorus or phosphine compound extraction agent and an extraction inhibitor, the extraction inhibitor is a weak acid compound selected from nonyl phenol, octyl phenol, 3, 5-di-tert-butyl catechol, 4-tert-butyl catechol, 4-butyl catechol, capryloyl salicylic acid, azelaic acid, sebacic acid, dodecanedioic acid, 2-hexyldecanoic acid, lauric acid, decanoic acid, 2, 2 '-(1, 4-phenylene bis (oxy)) dibutyric acid, 2, 2'-(1, 4-phenylene bis (oxy)) divaleric acid, 2, 2 '-(1, 4-phenylene bis (oxy)) divaleric acid, 2, 2'-(1, 4-phenylene bis (oxy)) dibutyric acid, 2, 2 '-(1, 4-phenylene bis (oxy)) dibutyric acid, 2, 2'-( the organic solvent is at least one of 2, 2 '-(1, 4-phenylene bis (oxy)) dihexanoic acid, neodecanoic acid, 2, 2'-(1, 4-phenylene bis (oxy)) diheptanoic acid or 2, 2 '-(1, 4-phenylene bis (oxy)) dioctanoic acid. The extraction agent provided by the invention can effectively prevent an extraction system from generating emulsification or three phases, and can effectively improve the reverse extraction efficiency. In addition, the extraction agent can be designed and adjusted, the composition of the extraction agent can be adjusted according to the composition, element concentration and the like of the solution, and then efficient separation of metal elements is achieved.

The application discloses a kind of polysebacic acid terephthalate, polyester composition and its preparation method and application.The weight average molecular weight of the polysebacic acid terephthalate is 70000~155000, and the intrinsic viscosity is 1.20~1.45 dL / g.The specific weight average molecular weight and intrinsic viscosity of the polysebacic acid terephthalate can significantly improve the deformation resistance and stiffness of the film made of polyester composition in the case of high addition amount in polyester composition.

This invention relates to the field of polymer materials and protective coatings, and discloses a single-layer UV-resistant heavy-duty anti-corrosion powder coating, its preparation method, and its application. The preparation method of the single-layer UV-resistant heavy-duty anti-corrosion powder coating includes: carboxyl polyester resin, triglycidyl isocyanurate, modified nano-silica, modified chitosan, 2-(2H-benzotriazol-2-yl)-4,6-di-tert-amylphenol, bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, flake aluminum powder, and phosphorus... Zinc sulfate, BYK-392, 2-hydroxy-1,2-diphenyl ethyl ketone, and γ-aminopropyltriethoxysilane were mixed at room temperature with stirring at 300-350 rpm for 10-15 minutes to obtain a mixture. This mixture was then extruded using a twin-screw extruder at 110-120°C and a screw speed of 450-500 rpm. The mixture was then ground to obtain a single-layer UV-resistant heavy-duty anti-corrosion powder coating. This single-layer UV-resistant heavy-duty anti-corrosion powder coating can be applied to the protection of metal substrates. The coating prepared by this invention has excellent UV resistance and anti-corrosion properties.

An aliphatic or aliphatic-aromatic thermoplastic polyester resin is modified in the presence of a peroxide in an aqueous dispersion of the aliphatic or aliphatic-aromatic thermoplastic polyester resin at a temperature that is equal to or lower than a one-minute half-life temperature of the peroxide and that is in a range of 0 to 100° C. The resin may be a poly(3-hydroxyalkanoate) resin, polybutylene adipate terephthalate, polybutylene succinate adipate, polybutylene succinate, polybutylene sebacate terephthalate, polybutylene succinate adipate terephthalate, polycaprolactone, or polylactic acid.

The present invention relates to a method for producing a water-in-oil emulsion for cosmetics, in which a glycerol-in-oil emulsion is mixed with water in a storage container and shaken or stirred, the invention relates to a composition comprising a glycerol-in-oil emulsion comprising: a) glycerol, b) one or more lipids that are liquid at room temperature and atmospheric pressure, c) one or more waxes, d) one or more salts, e) polyglycerol-4 diisostearate / polyhydroxystearate / sebacate that has been emulsified at room temperature (INCI: polyglycerol-4 diisostearate / polyhydroxystearate / sebacate).