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3182 results about "Polyester resin" patented technology
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Polyester resins are unsaturated synthetic resins formed by the reaction of dibasic organic acids and polyhydric alcohols. Maleic Anhydride is a commonly used raw material with diacid functionality. Polyester resins are used in sheet moulding compound, bulk moulding compound and the toner of laser printers. Wall panels fabricated from polyester resins reinforced with fiberglass—so-called fiberglass reinforced plastic (FRP)—are typically used in restaurants, kitchens, restrooms and other areas that require washable low-maintenance walls. They are also used extensively in cured-in-place pipe applications. Departments of Transportation in the USA also specify them for use as overlays on roads and bridges. In this application they are known as PCO Polyester Concrete Overlays. These are usually based on isophthalic acid and cut with styrene at high levels—usually up to 50%. Polyesters are also used in anchor bolt adhesives though epoxy based materials are also used. Many companies have and continue to introduce styrene free systems mainly due to odor issues. Most polyester resins are viscous, pale coloured liquids consisting of a solution of a polyester in a monomer which is usually styrene..
Unsaturated polyester resin for imitation jade handicrafts and preparation method of unsaturated polyester resin
The invention discloses unsaturated polyester resin for imitation jade handicrafts and a preparation method thereof, and belongs to the technical field of polyester resin. Comprising the following components: diethylene glycol, methylpropanediol, propylene glycol, maleic anhydride, phthalic anhydride, an antioxidant, a polymerization inhibitor, paraffin, a stabilizer, an ultraviolet light absorber, a whitening agent and a diluent. The weight ratio of the propylene glycol to the methyl propylene glycol is (1.0-1.3): 1, and the methyl propylene glycol accounts for 20-22% of the total amount of the dihydric alcohol; the weight ratio of maleic anhydride to phthalic anhydride is (0.46-0.52): 1; the preparation method comprises 1) adding the raw materials and the antioxidant into a reactor, carrying out heating, carrying out heat preservation for 0.5-1.0 h and continuing heating, 2) carrying out a reaction for 2-3 h after heating, carrying out dehydration until an acid value is 20-25 mgKOH / g, and 3) carrying out cooling, adding the auxiliary agent and carrying out uniform mixing so that the unsaturated polyester resin is obtained.
Owner:SHANDONG WANGLIN NEW MATERIALS CO LTD +2
Preparation process of bamboo fiber graft modified full-biodegradable composite membrane material
The invention relates to the technical field of high polymer material preparation, and discloses a bamboo fiber graft modified full-biodegradable composite membrane material preparation process which comprises the following steps: firstly, performing hot mixing and cooling on dried bamboo fiber powder, anhydrous citric acid, choline chloride, activated zinc oxide and pentaerythritol to prepare a bamboo fiber modified premix; then mixing the biodegradable polyester resin with the premix; adding the mixture into an extruder, injecting epoxidized soybean oil into a barrel through a liquid metering device, and performing melt extrusion granulation under a vacuum exhaust condition; and finally carrying out blow molding to form the film. Through in-situ reaction extrusion of multi-component synergism, surface grafting of bamboo fibers, chain extension of a polyester matrix and interface chemical bonding of the bamboo fibers and the polyester matrix are achieved, interface compatibility is effectively improved, degradation of the material in the processing process is inhibited, and the mechanical property and thermal stability of the composite film material are remarkably improved; the process is efficient and environment-friendly, and the cost is controllable.
Owner:FUJIAN YANGZHU NEW MATERIALS TECHNOLOGY CO LTD
Waterproof anticorrosive paint as well as preparation method and application thereof
ActiveCN119410240ASimple processEasy to operate and controlAnti-corrosive paintsPolyurea/polyurethane coatingsPolymer scienceBoronic acid
The invention discloses a waterproof anticorrosive coating and a preparation method and application thereof, and relates to the technical field of coatings, and the waterproof anticorrosive coating is prepared from the following raw materials in parts by weight: 30-40 parts of carboxyl-terminated hyperbranched polyester resin, 20-30 parts of carboxyl-terminated functional polyamide, 10-15 parts of hyperbranched polyurethane containing epoxy groups, 15-20 parts of filler, 1-3 parts of (3, 6-diamino acridine-9-yl) boric acid, 1-3 parts of 1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5- the component A is prepared from the following components in parts by weight: 3-5 parts of 2, 3, 5-triglycidyl-S-triazinetrione, 1-2 parts of a coupling agent, 0.8-1.2 parts of a flatting agent and 0.6-1.3 parts of a defoaming agent; the carboxyl-terminated functional polyamide comprises a structural unit introduced by the following monomers: N-(4H-1, 2, 4-triazole-4-yl) diphenylamine-4, 4 '-dicarboxylic acid, and 3, 3'-diamino-4, 4 '-difluorodiphenyl sulfone. The coating is good in waterproof and anti-corrosion performance, high in adhesive force with a base material, sufficient in solvent resistance and aging resistance and long in service life.
Owner:HUIZHOU TIANHONG PAINTING CO LTD
Diffusion plate printing quantum dot ink and preparation method thereof
The invention relates to the field of quantum dot ink, and discloses diffusion plate printing quantum dot ink and a preparation method thereof.The diffusion plate printing quantum dot ink comprises acrylic resin, hyperbranched polyester resin, a quantum dot material, modified boron nitride, a reactive diluent, a photoinitiator, a wetting agent and a defoaming agent; the hyperbranched polyester resin is prepared by reacting hyperbranched polyester acrylate and a sulfydryl-terminated silicon-containing reaction monomer, wherein the hyperbranched polyester acrylate is prepared by reacting pentaerythritol with 2, 2-dimethylolpropionic acid and then carrying out esterification reaction with acrylic acid; the sulfydryl-terminated silicon-containing reaction monomer is prepared by reacting eugenol with 1, 1, 3, 3-tetramethyldisiloxane and then carrying out esterification reaction with 3-mercaptopropionic acid; the modified boron nitride is prepared by modifying a cationic polymer which is prepared by carrying out a Mannich reaction on triethylene tetramine, formaldehyde and acetone and then carrying out a condensation polymerization reaction with formaldehyde. After the ink prepared by the invention is cured, a coating film is high in hardness, adhesive force and heat conductivity coefficient, and good in flexibility, heat resistance and migration barrier property.
Owner:SHENZHEN CHENGYUXING PHOTOELECTRICITY CO LTD
High-strength low-density proppant as well as preparation method and in-situ generation method thereof
The invention discloses a high-strength low-density proppant as well as a preparation method and an in-situ generation method thereof. The proppant is prepared by compounding recycled glass fiber reinforced plastic powder or glass fiber powder with different meshes and recycled glass fiber reinforced plastic powder in different proportions and blending a styrene system / unsaturated polyester resin system in different proportions. The glass fiber reinforced plastic powder as the filler can improve the mechanical properties of the proppant, such as strength and toughness. The matrix is made of polystyrene or unsaturated polyester or other high polymer materials and is low in density. Therefore, the proppant has the characteristics of high strength and low density. The invention discloses a preparation method of a high-strength and low-density proppant, which can produce the high-strength and low-density proppant with uniform particle size distribution on a large scale by adopting a suspension polymerization method, and can efficiently recover a large amount of glass fiber reinforced plastic wastes. The suspension polymerization method is simple to operate, the produced proppant is high in roundness and sphericity, the mining cost of a coal-bed gas well can be reduced, and the yield of coal-bed gas can be increased.
Owner:ZHEJIANG UNIV OF TECH
Temperature-resistant high-strength powder coating and preparation method thereof
The invention discloses a temperature-resistant high-strength powder coating and a preparation method thereof, and belongs to the field of coatings. The invention relates to a temperature-resistant high-strength powder coating which is prepared from the following raw materials in percentage by weight: 40-50% of epoxy resin; 20-30% of polyester resin; 6-10% of a curing agent; 1-3% of a leveling agent; 1-2% of a filler; and the balance of pigment. According to the polyester resin, aliphatic diisocyanate reacts with polyether polyol and hydroxyl silicone oil to obtain a polyurethane prepolymer, and then the polyurethane prepolymer reacts with vinyl benzylamine, an acrylate monomer and an acrylic monomer to obtain the polyester resin. The powder coating has the advantage that the temperature resistance and the strength of the powder coating are improved.
Owner:GUANGDONG PUKETE POWDER COATINGS CO LTD
Unsaturated polyester resin for unmanned aerial vehicle fuselage and preparation method thereof
The invention discloses unsaturated polyester resin for an unmanned aerial vehicle fuselage and a preparation method of the unsaturated polyester resin, and relates to the field of high polymer materials. When the unsaturated polyester resin for the unmanned aerial vehicle fuselage is prepared, a flame-retardant monomer reacts with 2-hydroxy-5-(hydroxymethyl) benzaldehyde to prepare a modified flame-retardant monomer; reacting cellulose with acrylic acid to obtain pre-modified cellulose; the pre-modified cellulose, 1-allyl-1, 1, 3, 3-tetramethyldisiloxane and chloroplatinic acid are subjected to a reaction, and modified cellulose is prepared; maleic anhydride, 5-(1H-imidazole-1-yl)-1, 3-phthalic acid, propylene glycol and the modified flame-retardant monomer are subjected to a reaction, and pre-polyester is prepared; and stirring the pre-polyester, zinc chloride, modified cellulose, benzophenone peroxide and styrene to obtain the anti-aging coating. The prepared unsaturated polyester resin for the unmanned aerial vehicle fuselage has good anti-aging, self-repairing, flame-retardant and self-cleaning performance.
Owner:CHENGDU DA GIONEE SYNTHETIC MATERIALS CO LTD
Nano-montmorillonite reinforced unsaturated polyester resin-based composite material and preparation method thereof
The invention relates to the technical field of composite materials, in particular to a nano-montmorillonite reinforced unsaturated polyester resin based composite material and a preparation method thereof. Comprising the following raw materials in parts by weight: 60-85 parts of orthophthalic unsaturated polyester resin, 3-15 parts of nano montmorillonite, 1-5 parts of a polyfunctional group intercalator, 1-4 parts of an initiator, 0.5-2 parts of dimethylaniline and 0.5-3 parts of gamma-aminopropyltriethoxysilane. The polyfunctional intercalator interacts with interlayer ions and surface groups of the nano-montmorillonite through multiple functional groups of the polyfunctional intercalator, and is effectively inserted into the interlayer of the nano-montmorillonite, so that the interlayer spacing is obviously increased, and favorable conditions are provided for subsequent insertion and compounding of resin; the functional groups not only can chemically react with active groups of unsaturated polyester resin to form stronger chemical bonding, but also can enhance the interface bonding force between two phases through physical entanglement, so that the overall performance of the composite material is remarkably improved.
Owner:LAIYANG HONGAN CHEM CO LTD
High-hydrolysis-resistance glass fiber reinforced polyester material
The invention discloses a high-hydrolysis-resistance glass fiber reinforced polyester material, which is prepared from the following raw materials in parts by weight: 36 to 65 parts of mixed modified polyester resin, 9 to 25 parts of glass fiber, 6 to 11 parts of hydrolysis-resistant agent, 4 to 15 parts of toughening agent, 2 to 8 parts of buffering agent, 0.2 to 0.5 part of compatilizer, 0.1 to 1.0 part of lubricating agent and 3 to 10 parts of halogen-free flame retardant, the modified polyester resin comprises organic silicon modified polyester resin and acrylate modified polyester resin. The modified mixed polyester resin material is used as the raw material of the polyester material, so that the polyester material can fully combine the advantages of the organic silicon modified polyester resin and the polyacrylate modified polyester resin, and terminal carboxyl groups in a polyester molecular chain are reduced by using the mixed modified polyester resin, so that the hydrolysis reaction is inhibited, and the service life of the polyester material is prolonged. Therefore, the hydrolysis resistance of the polyester material is improved.
Owner:HANGZHOU ZETONG NEW MATERIAL TECH CO LTD
High-temperature-resistant and corrosion-resistant unsaturated polyester resin for grating and preparation method thereof
PendingCN119529192Aaccelerated corrosionImprove high temperature resistancePolymer scienceCross linker
The invention discloses high-temperature-resistant and corrosion-resistant unsaturated polyester resin for a grid and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The raw materials comprise the following components in parts by weight: 330 to 400 parts of isophthalic acid, 55 to 80 parts of 1, 4-cyclohexanedimethanol, 150 to 200 parts of ethylene glycol, 125 to 220 parts of first reaction stage propylene glycol, 0.2 to 0.6 part of a catalyst, 0.1 to 0.3 part of a first reaction stage antioxidant, 90 to 120 parts of second reaction stage propylene glycol, 30 to 50 parts of phthalic anhydride, 300 to 380 parts of maleic anhydride, 0.1 to 0.3 part of a second reaction stage antioxidant, 0.1 to 0.5 part of a polymerization inhibitor and 600 to 630 parts of a cross-linking agent. The high-temperature-resistant and corrosion-resistant unsaturated polyester resin for the grating has the characteristics of high corrosion resistance, high temperature resistance and high mechanical property, is low in cost and is suitable for being used as a raw material for manufacturing the grating.
Owner:HUBEI WANGLIN NEW MATERIAL TECH
Preparation method and application of super-weather-resistant HAA cured extinction polyester resin
ActiveCN119463146AImprove hydrolysis resistanceImprove high temperature resistanceFireproof paintsPowdery paintsPolymer sciencePtru catalyst
The invention relates to the technical field of polyester resin, and discloses a preparation method and application of super-weather-resistant HAA curing type extinction polyester resin, neopentyl glycol, a triazine phenyl imide diol monomer, binary acid, an esterification catalyst, an onium salt curing accelerator and the like are subjected to a reaction, and the super-weather-resistant HAA curing type extinction polyester resin is obtained. The triazine phenyl imide diol monomer has a phenyl imide ring and triazine ring structure with heat resistance and structural stability, is beneficial to improving the high temperature resistance and mechanical strength of a polyester resin powder coating paint film, shows higher impact resistance, contains a dialkyl side chain, and can be used for preparing the polyester resin powder coating after being introduced into a polyester molecular chain. The modified polyester resin can generate steric hindrance and shielding effects, inhibit contact between water molecules and ester bonds in polyester molecular chains and reduce hydrolysis reaction of ester groups, so that the hydrolysis resistance of the polyester resin is improved. And the paint film has the advantages of good ultraviolet aging resistance, high weather resistance and high gloss retention rate.
Owner:ANHUI YOCHON NEW MATERIALS TECHNOLOGY CO LTD
Preparation method of bio-based degradable water-based ink
The invention relates to the technical field of ink, and discloses a preparation method of bio-based degradable water-based ink, which comprises the following steps: carrying out esterification polymerization on vanillin-based spiro acetal diglycidyl ether and diacid to obtain bio-based polyester resin, mixing and dispersing the bio-based polyester resin, petroleum-based resin, pigment, auxiliary agent and the like to obtain the bio-based degradable water-based ink. The bio-based degradable water-based ink is prepared. The bio-based resin contains a plurality of hydrophilic hydroxyl groups, has good solubility and dispersibility in the water-based ink, and generates denser hydrogen bonds and other cross-linking effects with the acrylic resin, so that the hardness of the ink is improved. Meanwhile, the polar hydroxyl groups also greatly enhance the hydrogen bond bonding and anchoring effect between the paint film and the base material, so that the adhesive force is improved. In addition, easily-hydrolyzed spiral acetal bonds, polyester structural units and other degradable chemical bonds in molecular chains of the bio-based resin provide more attack sites for water and microorganisms, the degradation rate is increased, and the degradable function is achieved.
Owner:GUANGDONG JINLONGYUAN PRINTING MATERIAL CO LTD
Moisture absorption and sweat releasing fabric and preparation process thereof
The invention relates to the technical field of fabrics, in particular to a moisture absorption and sweat releasing fabric and a preparation process thereof.The preparation process includes the following steps that raw materials including, by weight, 35-40 parts of modified polyester silk, 20-25 parts of functional yarn and 8-12 parts of polyester fiber are weighed; a preparation method of the modified polyester yarn comprises the following steps: melting, blending and extruding polyester resin and a modifier according to a weight ratio of 100: 5; weaving the modified polyester yarns, the functional yarns and the polyester fibers into a knitted fabric body by using a circular knitting machine; setting the knitted fabric body at a high temperature of 115 DEG C for 50 seconds, and obtaining the moisture-absorbing and sweat-releasing fabric after setting is finished. According to the moisture absorption and sweat releasing fabric, the modified polyester yarn, the functional yarn and the polyester fiber are woven into the knitted fabric through the circular knitting machine, the modified polyester yarn is improved and optimized by matching polyester resin with the modifier, and the moisture absorption and sweat releasing performance, the elasticity and the wear resistance of the polyester yarn are enhanced through mutual matching and mutual assistance of the raw materials.
Owner:JINJIANG YALISA GARMENT CO LTD
TPEE synthetic brush wire and preparation method thereof
ActiveCN119956524AConjugated synthetic polymer artificial filamentsArtifical filament manufactureElastomerPolymer science
The invention relates to the field of thermoplastic elastomer materials, in particular to a TPEE synthetic brush wire and a preparation method thereof.The TPEE synthetic brush wire is prepared from, by weight, 55-75 parts of TPEE resin, 25-45 parts of polyester resin, 5-10 parts of compatilizer, 8-16 parts of modified polysiloxane, 12-24 parts of plasticizer, 1-3 parts of lubricant, 0.3-1 part of antioxidant and 0.6-1.2 parts of stabilizer. The TPEE resin and the polyester resin are used as main raw materials, the compatilizer, the modified polysiloxane and the plasticizer are added as auxiliary raw materials, and the lubricant, the antioxidant and the stabilizer are added as additives, so that the prepared brush wire not only has the advantages of proper hardness and rigidity and high strength, but also has better antibacterial performance.
Owner:SHENZHEN HUAZHIFEI TECH CO LTD
Silver paste, preparation method thereof and photovoltaic cell
InactiveCN119626628AImprove surface adhesionenhanced interactionNon-conductive material with dispersed conductive materialPhotovoltaic energy generationSilver pasteElectrical battery
The invention relates to silver paste, a preparation method thereof and a photovoltaic cell. The silver paste can be used for the photovoltaic cell. The preparation method of the silver paste comprises the following steps: adding composite resin into a solvent to form an organic carrier; adding silver powder and a cross-linking curing mixing agent into the organic carrier, and stirring to obtain initial silver paste; adjusting the viscosity of the initial silver paste and / or the fineness of the initial silver paste to obtain silver paste; wherein the composite resin comprises hydroxyl modified polyester resin. The silver paste prepared through the preparation method of the silver paste has high adhesive force, the working stability of a photovoltaic cell can be improved, and the service life of the photovoltaic cell can be prolonged.
Owner:XIAN RARE METAL MATERIALS RES INST CO LTD
High-corrosion-resistance powder coating and preparation method thereof
The invention discloses a high-corrosion-resistance powder coating and a preparation method thereof, and belongs to the technical field of powder coatings. Through modification of the resin system, the ultraviolet absorbent modified epoxy resin and the weather-resistant polyester resin are compounded, so that the ultraviolet resistance and the weather resistance of the resin system are remarkably improved, and the corrosion resistance reduction caused by light aging is avoided; the flake graphene forms an excellent physical barrier to block corrosion medium permeation, then chemical passivation of zinc phosphate is combined to inhibit electrochemical corrosion, the synergistic effect is achieved, the corrosion resistance is synergistically enhanced from the physical and chemical angles, the path of the corrosion medium is further prolonged in combination with the laminated structure of the glass flakes, and the corrosion resistance is improved. And meanwhile, the filler A and the filler B can also play a role in enhancing the mechanical strength of the coating, so that the powder coating with high corrosion resistance can be obtained on the whole.
Owner:WESDON RIVER POWDER PAINT SCI RES CO LTD
Outdoor hydrolysis-resistant polyester resin as well as preparation method and application thereof
ActiveCN119409959AImprove hydrolysis resistanceIncrease crosslink densityPowdery paintsPolyester coatingsPolymer scienceEthyl group
The invention relates to the technical field of polyester resin, and discloses outdoor hydrolysis-resistant polyester resin and a preparation method and application thereof.The outdoor hydrolysis-resistant polyester resin is prepared from, by weight, 30-38 parts of polyhydric alcohol, 48-50 parts of binary acid, 20.5-28.5 parts of acidolysis agent and 0.1-0.12 part of onium salt curing accelerator; according to the invention, 2-butyl-2-ethyl-1, 3-propylene glycol is used as polyol, and an alkyl side chain is introduced into polyester molecules to generate steric hindrance and shielding effects, so that water molecules are difficult to attack adjacent lipid bonds, and the hydrolysis resistance of the polyester resin is improved. 2, 2 '-[(2-hydroxy-3-phenoxy propyl) azadiyl] diethanol contains a benzene ring structure with thermal stability, and is crosslinked into a polyester molecular chain, so that the glass transition temperature of the polyester resin can be increased, the heat resistance can be improved, and the boiling water resistance of a resin coating can be improved.
Owner:ANHUI YOCHON NEW MATERIALS TECHNOLOGY CO LTD
Glass fiber surface treatment agent and preparation method thereof, glass fiber and application thereof
The present application provides a glass fiber surface treatment agent and a preparation method thereof, glass fiber and application. The glass fiber surface treatment agent includes an effective component and water, wherein the effective component accounts for 4.6-10.3% by weight of the glass fiber surface treatment agent; the effective component includes: 6.3-19.6% of silane coupling agent, 1.8-5.9% of surfactant, 3.4-7.8% of lubricant, 60.7-84.8% of film former, and 2.9-6.4% of auxiliary agent according to the weight percentage of the effective component; wherein the film former is an acrylic acid modified polyester resin and / or an organosilicon modified polyester resin. The glass fiber produced by the glass fiber surface treatment agent of the present application has excellent smoothness of use and mechanical properties of glass fiber reinforced plastics, and meets various use requirements of food-grade glass fiber reinforced plastic containers.
Owner:JUSHI GRP CO
Toner and image forming apparatus
A toner comprises toner particles and an external additive adhering to surfaces of the toner particles, wherein the toner particle includes a crystalline polyester resin and a wax, the external additive includes organic / inorganic composite fine particles and an associated silica having two or more primary particles being associated with each other, and the toner has a softening point of 110° C. or lower.
Owner:SHARP KK
Zero-silicon artificial board and manufacturing process thereof
The invention discloses a zero-silicon artificial board and a manufacturing process thereof. The zero-silicon artificial board is prepared by mixing the following components: modified powder, modified unsaturated polyester resin, a flexibilizer, white slurry, a curing agent and a coupling agent. Wherein nano calcium carbonate is subjected to surface chemical coating modification to obtain the modified powder, and the surface of the modified powder is provided with a high polymer layer. The modified unsaturated polyester resin is obtained by modifying unsaturated polyester resin with styrene. The weight ratio of the modified powder to the modified unsaturated polyester resin to the flexibilizer is (16-30): (6-10): 1, and the white slurry, the curing agent and the coupling agent account for 3.5%-5.8% of the total weight. The crystal-free silicon plate with good gloss and light transmission and excellent impact resistance can be manufactured, the modified powder is adopted as the filler to replace aluminum powder, the stone texture is better, the source is wide, and the manufacturing cost is reduced.
Owner:GUANGDONG OVERLAND CERAMICS CO LTD
Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus and method
An electrostatic charge image developing toner, an electrostatic charge image developer, a toner cartridge, a process cartridge, an image forming apparatus, and an image forming method, the electrostatic charge image developing toner having toner particles containing an amorphous polyester resin, a crystalline polyester resin, and cross-linked resin particles, the internal cross-linked resin particles are styrene-(meth) acrylic copolymer particles and have an average dispersion diameter of 100 nm or more and 300 nm or less, and when a 3 [mu] m * 3 [mu] m square region of 600 [pix] 600 [pix] is divided into n * n in a cross-sectional view of the toner particles, the average dispersion diameter of the internal cross-linked resin particles is 1 [mu] m or less, and the average dispersion diameter of the internal cross-linked resin particles is 1 [mu] m or less. When DAR (n) is the coefficient of variation of the area ratio of the added cross-linked resin particles with respect to the area of the divided regions in the n * n divided regions, and slopeF (16) is the slope of an approximate straight line in a dispersion plot plotted by changing n to 3, 4, 6, 8, 12, and 16 with log [1 / n] as the X axis and log [DAR (n)] as the Y axis, formula (1) is satisfied: 0.6 < = slopeF (16).
Owner:FUJIFILM BUSINESS INNOVATION CORP
Recycled bis(4-hydroxybutyl) terephthalate, method for preparing same, and polyester resin using same
PendingJP2025539273APreparation by ester-hydroxy reactionOrganic compound preparationPolymer sciencePolyester resin
The recycled bis(4-hydroxybutyl) terephthalate according to one embodiment has a low amount of residual ethylene glycol derivatives and can therefore be used as a polymerization raw material for high crystallinity engineering polyester products or biodegradable polyesters, offering superior qualities, for example, color.
Owner:SK CHEMICALS CO LTD
Automatic grinding production equipment for polyester resin for powder coating
The invention discloses automatic grinding production equipment for polyester resin for powder coating, and belongs to the technical field of powder coating production. The equipment comprises a grinding and screening barrel, a screening net, a grinding plate, a suction cavity and a feeding pipe, a screening groove is formed in the grinding and screening barrel, the screening net is installed in the screening groove, the grinding plate is configured to be driven to rotate in the grinding and screening barrel, and a gap is formed between the side wall of the grinding plate and the inner wall of the grinding and screening barrel; the side wall of the grinding plate and the inner wall of the grinding and screening barrel are combined to grind polyester resin in the gap, a push-pull piston is arranged in the suction cavity in a sliding mode, a suction pipe is connected to the suction cavity, the feeding pipe penetrates through one side wall of the grinding and screening barrel to extend into the grinding and screening barrel, and the push-pull piston is used for assisting the feeding pipe in feeding when sucking air flow. The invention particularly provides the automatic grinding production equipment for the polyester resin for the powder coating, which can reduce the size of the equipment, clean a screening net and assist feeding and discharging.
Owner:JIANGSU DAMIRUI NEW MATERIAL CO LTD
Polyester resin
An object of the invention is to provide a polyester resin with highly reduced gelation, in addition to high moldability, surface smoothness, transparency, mechanical properties, heat resistance, thermal oxidative degradation stability, and chemical resistance. A polyester resin comprising a constituent moiety derived from terephthalic acid as a dicarboxylic acid component and constituent moieties derived from each of ethylene glycol, 1,4-butanediol, and a compound represented by a given structure as an alcohol component, wherein the dicarboxylic acid component comprises from 85 mol % to 100 mol % of terephthalic acid, the alcohol component comprises from 85 mol % to 100 mol % of 1,4-butanediol based on a total amount of ethylene glycol and 1,4-butanediol, and the alcohol component comprises from 0.001 mass % to 5 mass % of the compound represented by the given structure in 100 mass % of the alcohol component.
Owner:TOYOBO CO LTD
Unsaturated polyester resin for reinforced core of optical cable and preparation method of unsaturated polyester resin
The invention discloses unsaturated polyester resin for an optical cable reinforcing core and a preparation method thereof, and belongs to the technical field of unsaturated polyester resin. The composition is composed of the following components: PG, IPA, a catalyst, maleic anhydride, AA, styrene, an antioxidant, a first polymerization inhibitor, a second polymerization inhibitor and a third polymerization inhibitor. The ratio of alcohol to acid is (1.08-1.12): 1; the activity is (3.4-3.8): 1; the molar ratio of AA to IPA is 1: (12-16); the preparation method comprises the following steps: 1) uniformly mixing propylene glycol, a catalyst and isophthalic acid; 2) raising the temperature, preserving the heat and raising the temperature again; cooling, sequentially adding a first polymerization inhibitor, maleic anhydride and adipic acid, heating, keeping the temperature, and heating again; 3) cooling and adding a second polymerization inhibitor, and 4) cooling and adding styrene, a third polymerization inhibitor and an antioxidant, uniformly mixing, and cooling to less than or equal to 60 DEG C to obtain the unsaturated polyester resin for the optical cable reinforcing core. The unsaturated polyester resin for the optical cable reinforcing core has the characteristics of high bending strength and high temperature resistance.
Owner:HUBEI WANGLIN NEW MATERIAL TECH +2
Dual curing UV tackifying adhesives and articles thereof
PendingCN119432262AGuaranteed paste effectgood adhesionFilm/foil adhesivesMacromolecular adhesive additivesAdhesive cementPolymer science
The invention relates to the technical field of adhesives, in particular to a dual-curing UV tackifying adhesive and a product thereof. The dual-curing UV tackifying adhesive is prepared from the following components in parts by weight: 73 to 92 parts of acrylate copolymer, 6 to 25 parts of UV polyester resin, 0.4 to 1.7 parts of thermal curing agent and 0.3 to 1 part of photoinitiator. According to the dual-curing UV tackifying adhesive disclosed by the invention, the components are compounded, so that the adhesive can be endowed with relatively low and appropriate bonding strength in a thermocuring stage, the bonding and positioning requirements are met, and the dual-curing UV tackifying adhesive can be stripped from an adhered object and has excellent reworkability; and after positioning, the bonding force between the adhesive and the pasted object is increased through UV illumination, so that the pasting effect of the adhesive on the pasted object is ensured.
Owner:CROWN TAICANG ADHESIVE PROD CO LTD
A polyurethane resin composition for display screen packaging and preparation method thereof
The invention discloses a polyurethane resin composition for display screen encapsulation, comprising the following raw materials in parts by weight: 20-25 parts of polyester resin, 10-15 parts of polyurethane resin, 45-50 parts of butanone, 6-10 parts of silane coupling agent KH560, 8-12 parts of flaky bentonite modified whisker agent, 5-10 parts of glass fiber regulator and 2-5 parts of nano lanthanum oxide agent. The polyurethane resin composition for display screen encapsulation of the invention uses polyester resin and polyurethane resin as base materials, and optimizes the interface of system raw materials by adding silane coupling agent KH560 as an interface regulator, and coordinates and synergizes the flaky bentonite modified whisker agent, glass fiber regulator and nano lanthanum oxide agent with each other, so that the bonding strength, water vapor barrier and cold and heat shock resistance of the product are coordinated and improved.
Owner:GUANGZHOU ZANCHEN NEW MATERIAL TECH CO LTD
Polyester composition and application thereof
The invention provides a polyester composition and application thereof. The polyester composition comprises the following components in parts by mass: 40-99.5 parts of polyester resin and 5-35 parts of a flame retardant, the flame retardant is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. According to the flame-retardant polyester composition, the specific flame retardant is introduced, so that the flame-retardant polyester composition plays an excellent and efficient flame-retardant effect, and the polyester composition has excellent flame-retardant property, high deflection, good toughness and bending property and excellent performance in the aspect of mechanical properties.
Owner:KINGFA SCI & TECH CO LTD +2
A polyester hot melt adhesive and its preparation method and application
The present invention provides a polyester hot melt adhesive and a preparation method and application thereof. The polyester hot melt adhesive comprises 50-60 parts of a first polyester resin, 10-20 parts of a second polyester resin and 20-30 parts of a third polyester resin in parts by weight; the raw materials for preparing the first polyester resin include aromatic dibasic acid, diol and polyamine; the raw materials for preparing the second polyester resin include aliphatic dibasic acid and aliphatic long-chain diol; the raw materials for preparing the third polyester resin include dibasic acid, diol and polypropylene grafted maleic anhydride. In the present invention, the polyester hot melt adhesive is compounded by three polyester resins with specific structures, so that the polyester hot melt adhesive has both excellent high temperature resistance and low temperature resistance, can be used for a long time under high and low temperature conditions, will not have debonding, film shrinkage, edge warping and other phenomena, has good high and low temperature cycle resistance, and has low construction viscosity, good adhesion to a variety of substrates, high adhesion, and a wide range of applications.
Owner:SUZHOU MACROOCEAN MATERIALS CO LTD
Degradable resin material, optical property regulator, optically-adjustable environment-friendly mulching film and processing method of optically-adjustable environment-friendly mulching film
The invention discloses a degradable resin material, an optical property regulator, an optically-adjustable environment-friendly mulching film and a processing method of the optically-adjustable environment-friendly mulching film, and belongs to the field of degradable environment-friendly materials. The invention provides a degradable polyester resin material with a novel structure, namely polycaprolactone-co-lactide. The degradable polyester resin material is formed by performing ring-opening copolymerization on epsilon-caprolactone and lactide under the catalytic action of a symmetric binuclear Schiff base complex; the ratio of the average chain segment length of caprolactone to the average chain segment length of lactide in the resin material is (2-2.2): (2-2.2), which is close to that of an alternating copolymer. The compound can be used as an optical property regulator, and preparation of an environment-friendly mulching film with adjustable optical properties such as ultraviolet light absorbance, infrared light transmittance and haze can be realized under the condition that no dye or other coloring additives are used.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES