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983 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..
Tackified adhesive film
PCT designated stageWO2026037440A1Non-macromolecular adhesive additivesFilm/foil adhesivesPolymer scienceAdhesive belt
The present invention relates to the technical field of tackified adhesive films and specifically to a tackified adhesive film. The tackified adhesive film comprises a substrate layer and a UV-tackified adhesive layer applied onto the substrate layer. The UV-tackified adhesive layer is prepared by using a modified polyester resin, which is obtained by the graft polymerization of a hydroxyl-terminated polyester resin, butyl methacrylate, and isocyanatoethyl methacrylate, as a main resin and mixing the main resin with a tackifying resin, a photo-curing agent and the like. The UV-tackified adhesive layer has relatively high cohesive strength and relatively good adhesion to a PET substrate. Before a UV-induced tackification reaction, an initial peel force is not significantly increased with the extension of standing time, so that an adhesive tape can be easily removed without causing damage and contamination such as residual adhesive to an adherend . After the UV-induced tackification reaction, the modified polyester resin can improve the bonding strength between the adhesive tape and the adherend.
Owner:BYE POLYMER MATERIAL CO LTD
A high performance coil powder coating and a method for its preparation
The application discloses a kind of high-performance coiled material powder coating and preparation method thereof, belong to powder coating technical field, the application is by the compounding of organosilicon modified epoxy resin and carboxyl-terminated polyester resin, after organosilicon modification, the segment of introduction-Si-O-Si in system has high flexibility, and synergistic effect with nano calcium carbonate, it is helpful to balance the adhesion and flexibility of coating, grafting modification graphene oxide, active chromium oxide is added again, can obviously improve the mechanical strength of coating;After then, phosphite group is grafted onto graphene oxide, and is applied in the present powder coating system, can form three-dimensional network structure in system, chemical bond effect, not only can improve its crosslinking stability in system, and the sheet structure of graphene oxide, also can play certain barrier property, can also give coating longer weather resistance, and active chromium oxide synergistic effect is further improved, and the weather resistance and corrosion resistance of coating.
Owner:TAIAN JIUZHOUHUI TECHNOLOGY CO LTD
toner
Provided is a toner that includes a toner particle containing a binder resin; and an external additive, wherein the binder resin contains a polyester resin A; when a content of the polyester resin A in the binder resin is taken as Wp (mass %), Wp is 50 mass % or more; when a content ratio of the monomer unit Uiso corresponding to isophthalic acid to all monomer units corresponding to polycarboxylic acids in the polyester resin A is taken as MIPA (mol %), MIPA is 40 mol % or more; the external additive contains inorganic fine powder; and the inorganic fine powder contains a silica fine particle having aluminum hydroxide on the surface thereof.
Owner:CANON KK
Corrosion-resistant and wear-resistant composite metal plate
PendingCN121732933AWelding/cutting auxillary devicesArc welding apparatusLap jointMetallic materials
The invention discloses a corrosion-resistant and wear-resistant composite metal plate, which relates to the technical field of composite metal materials, and is technically characterized by comprising the following steps: firstly, preparing a flux-cored wire, and preparing deposited metal components according to mass percent by using a specific low-carbon steel strip; then, a thick low-carbon steel plate or a low-alloy steel plate serves as a base plate, a double-layer structure is formed through a gradient surfacing technology, a transition layer is prepared according to the proportion, a main wear-resisting layer is formed by fusing and diffusing flux-cored wires and contains various high-hardness wear-resisting phases, the lap joint width is controlled, cooling is conducted, and a surfacing composite layer is formed; the surfacing composite layer is integrally leveled through a press machine, and a semi-finished product is obtained; and finally, mixing organic silicon modified polyester resin and the like to prepare a joint sealing agent, coating the semi-finished product for 3-4 layers, and curing to obtain a finished product. The wear-resistant layer is free of cracks, and the corrosion resistance of the base body is improved.
Owner:SUZHOU BALOT NEW MATERIAL TECH CO LTD
toner
A toner including: a toner particle; and an inorganic fine particle, wherein the inorganic fine particle contains a strontium titanate fine particle, a Si-containing protrusion portion is present at a surface of the strontium titanate fine particle, and the toner contains an amorphous polyester resin and an aluminum element at a surface of the toner particle.
Owner:CANON KK
UV-tackifiable adhesive tape and preparation method therefor
PCT designated stageWO2026026990A1Adhesive articlesPressure sensitive film/foil adhesivesPolymer scienceUV curing
A UV-tackifiable adhesive tape and a preparation method therefor. The UV-tackifiable adhesive tape comprises a substrate layer, a UV-tackifiable adhesive layer and a release film layer, wherein the substrate layer, the UV-tackifiable adhesive layer and the release film layer are sequentially laminated from bottom to top; and the UV-tackifiable adhesive layer comprises a modified polyester resin, a monofunctional UV photocuring monomer, a polyfunctional photocuring compound, a curing agent, a photoinitiator and a stabilizer. The UV-tackifiable adhesive layer comprises the modified polyester resin as a basic polymer, and the polyester resin can effectively improve the adhesion between the adhesive layer and a substrate before UV curing of the UV-tackifiable adhesive layer, improve the bonding strength between the UV-tackifiable adhesive layer having been UV-cured and an adhered object, and also enhance the high-temperature release force and weather resistance of the UV-tackifiable adhesive layer having been UV-cured.
Owner:BYE POLYMER MATERIAL CO LTD
Preparation process of adhesive tape with high stripping stability
PendingCN121592263AUsing mechanical meansOrganic non-macromolecular adhesivePolymer sciencePolyethylene terephthalate glycol
The invention discloses an adhesive tape with high stripping stability and a preparation process thereof. The adhesive tape comprises a PET (Polyethylene Terephthalate) base material subjected to corona treatment, an acrylic acid pressure-sensitive adhesive layer, a release layer and an antistatic liquid coating. The acrylic pressure-sensitive adhesive layer is composed of acrylate monomers, saturated polyester resin, bisphenol F, bisphenol A epoxy resin and amino resin. The preparation process comprises the steps of corona pretreatment of the polyethylene glycol terephthalate base material, coating of the antistatic liquid, coating of the pressure-sensitive adhesive, compounding of the release layer and curing treatment. The stripping force change rate of the adhesive tape after damp-heat aging and low-temperature aging is smaller than 5% and is far lower than the industrial standard, and the adhesive tape has excellent stripping stability, antistatic property and weather resistance and is suitable for the fields of electronic product protection, automobile paint spraying shielding and the like.
Owner:SHANGHAI BAO ZHONG BAO ADHESIVE PROD CO LTD
Hot melt adhesive sheet
This hot-melt adhesive sheet is provided with a base material and an adhesive layer laminated on at least one surface of the base material, the adhesive layer being formed from a hot-melt adhesive, the hot-melt adhesive comprising a crosslinked product of an adhesive composition containing a crosslinking agent, the adhesive composition comprising a polyester resin, an epoxy resin, and an isocyanate crosslinking agent, the epoxy resin contains a bisphenol-type epoxy resin and a rubber-modified epoxy resin, and the bisphenol-type epoxy resin has an epoxy equivalent weight of 450 g / eq or more and 1000 g / eq or less.
Owner:NITTO SHINKO KK
Weather-resistant polyester resin for low-temperature curing and preparation method thereof
The invention belongs to the field of polyester resins, and provides a weather-resistant polyester resin for low-temperature curing and a preparation method thereof. A three-step progressive design that a polyester prepolymer is terminated by silane and then is subjected to hydrolytic polycondensation with tetraethyl orthosilicate to construct an organic-inorganic covalent hybrid network is adopted; through cooperation of the condensation catalyst, the hindered amine light stabilizer and the ultraviolet absorbent, the mechanical properties that the pencil hardness reaches the HB level or above and the cross-cut test level is not higher than the first level under the low-temperature curing condition of not higher than 100 DEG C are achieved, and the long-term weather resistance that the color difference is not larger than 2.0 and the gloss retention rate is not lower than 80% after 500-hour artificial accelerated aging is achieved. The technical problems of poor storage stability and difficulty in consideration of high solid content and low viscosity caused by insufficient low-temperature curing capacity and non-uniform organic-inorganic hybridization of the traditional polyester resin are solved, and the polyester resin has wide application value in the fields of building coatings, automobile refinishing paints, wood coatings and the like with strict requirements on low-temperature curing and weather resistance.
Owner:WUXI CHANGCHUAN MATERIAL TECH CO LTD
Railway bridge foot plank made of high-strength light composite material
The invention belongs to the technical field of railway bridge ancillary facilities, and discloses a high-strength light composite material railway bridge foot plank which comprises a plane part at the top and hollow strip-shaped protrusions arranged in the length direction, and strip-shaped grooves opened downwards are formed between the protrusions so as to improve the bearing capacity and reduce the dead weight. The foot plank is formed by combining a resin matrix, an alkali-free glass fiber reinforced material, a flame retardant and an auxiliary agent, an unsaturated polyester resin system or an epoxy resin system is selected, and the connecting piece is of an S-shaped component or a hook type structure, so that rapid installation and reliable locking of the foot plank and the steel beam are achieved. The foot plank has the advantages of high strength, light weight, corrosion resistance, high weather resistance and the like, and is suitable for long-term safe use of railroad bridges.
Owner:GUOHUA YONGSHENG (SHANXI) NEW MATERIALS TECH CO LTD
Long-acting anticorrosive epoxy powder coating and preparation method thereof
The invention provides a long-acting anticorrosive epoxy powder coating and a preparation method thereof. The coating comprises epoxy resin, polyester resin, thiadiazole corrosion inhibitor loaded cerium-doped hydrotalcite composite particles, silane modified mica iron oxide, zinc phosphate, barium sulfate and the like. The core innovation lies in that 2-amino-5-(4-hydroxyphenyl)-1, 3, 4-thiadiazole corrosion inhibitor molecules are designed and synthesized, the molecules are loaded between cerium-doped magnesium-aluminum hydrotalcite nano container layers through an anion exchange method, corrosion environment pH responsive gradient release is achieved, a coating constructs a passive shielding, active corrosion inhibition and interface anchoring triple protection mechanism in the coating, and the corrosion resistance of the coating is improved. The neutral salt spray test resistance exceeds 2000h, and the coating is suitable for long-acting corrosion protection of iron accessories and cable bridges.
Owner:GUANGDONG DIANAN NEW MATERIAL TECH CO LTD
Heat-shrinkable polyester film
The present invention relates to a heat-shrinkable polyester film that exhibits a low value of shrink stress like Polyvinyl chloride resin film. Namely, the provided is a polyester heat-shrinkable film obtained from multiple amorphous polyester resins or the like that are reaction products of a polyvalent carboxylic acid and both a first polyalcohol having an alicyclic structure and a second polyalcohol not having an alicyclic structure, wherein the thermal shrink stress at 85° C. is below 6.8 MPa.
Owner:BONSET AMERICA CORP +1
Boiling-resistant highlight black powder coating
The invention discloses a boiling-resistant highlight black powder coating, and relates to the field of powder coatings. The boiling-resistant highlight black powder coating comprises the following raw materials in parts by weight: 30-45 parts of amide modified polyester resin; 25 to 35 parts of epoxy resin; 0.8 to 1.5 parts of a leveling agent; 0.3 to 0.6 part of a degassing agent; 0.8 to 1.2 parts of a brightening agent; 0.4 to 0.9 part of micro powder polyethylene wax; 1-2 parts of carbon black; 1-3 parts of a curing agent; 10-16 parts of stearic acid modified mica powder; and 10-16 parts of hollow glass beads. The boiling resistance and weather resistance of the thermosetting powder coating are improved, and the highlight black powder coating with good boiling resistance is prepared.
Owner:FOSHAN SHUNDE DISTRICT LANTIAN IND
Polyester resin blend
The present disclosure relates to a polyester resin blend. The polyester resin blend can provide a thick container with high transparency even if it contains recycled polyethylene terephthalate as well as virgin polyethylene terephthalate. In addition, the resin blend can be reused by itself, and is expected to be useful for providing continuously usable plastics that have been recently attracting attention.
Owner:SK CHEMICALS CO LTD
High-toughness bundling grating and production process thereof
The invention provides a high-toughness bundling grating and a production process of the high-toughness bundling grating. The composite material is prepared from the following raw materials in parts by weight: 32 to 42 parts of epoxy modified unsaturated polyester resin, 26 to 36 parts of alkali-free glass fiber, 7 to 11 parts of metallocene polyolefin, 5 to 9 parts of high-branching-degree polyolefin, 4 to 8 parts of ethylene propylene diene monomer, 2.5 to 5.5 parts of core-shell structure elastomer toughening agent, 1.5 to 4.5 parts of modified nano aluminum nitride-graphene composite filler, 0.7 to 1.1 parts of silane coupling agent and 0.5 to 0.9 part of antioxidant. 0.4 to 0.7 part of ultraviolet stabilizer, 0.4 to 0.8 part of calcium stearate and 0.1 to 0.3 part of conductive additive. According to the invention, the core-shell structure elastomer toughening agent realizes toughening without damaging strength through core-shell synergy, and the impact strength is improved by 40% or above; the modified nano aluminum nitride-graphene composite filler constructs a heat conduction-antistatic network, and the modified nano aluminum nitride-graphene composite filler and the metallocene polyolefin are matched with the high-branching-degree polyolefin and the ethylene propylene diene monomer to enhance low-temperature toughness and creep resistance.
Owner:HAINING ZHENYANG TEXTILE COMPOUND MATERIALS CO LTD
Heat-insulating powder coating as well as preparation method and application thereof
The invention relates to the technical field of coatings, and discloses a heat-insulating powder coating as well as a preparation method and application thereof. The heat insulation powder coating is prepared from the following preparation raw materials in parts by mass: 160 to 220 parts of organic silicon modified polyester resin, 10 to 30 parts of modified hollow glass beads, 30 to 70 parts of modified sericite powder, 40 to 60 parts of titanium dioxide, 3 to 5 parts of hydrophobic SiO2 aerogel and 10 to 20 parts of curing agent, wherein the organic silicon modified polyester resin is prepared by melting and blending weather-proof polyester resin and organic silicon resin according to the mass ratio of (4-9): 1; the temperature of melt blending is 90 to 130 DEG C. According to the coating, the excellent heat insulation performance that the solar reflectance is larger than or equal to 0.87 and the heat conductivity coefficient is smaller than or equal to 0.075 W / m.K is achieved, the excellent mechanical strength, adhesive force, impact resistance and long-acting weather resistance are achieved, and heat loads on the surfaces of building outer walls, industrial furnace shells, household appliances and the like can be remarkably reduced.
Owner:GUANGZHOU KINTE IND +1
Toner
A toner comprising a toner particle comprising a colorant, a binder resin, and calcium carbonate particles, wherein an amount of the colorant in the toner particle is from 1.0 to 20.0% by mass; the binder resin comprises a polyester resin; the polyester resin has an aromatic ring concentration of from 50 to 70 mol %; a surface of the calcium carbonate particles is coated with a fatty acid; an amount of the calcium carbonate particles in the toner particle is from 1.0 to 15.0% by mass; a number average particle diameter of the calcium carbonate particles is from 150 nm to 800 nm.
Owner:CANON KK
Toner and image forming method
To provide a toner that achieves both low-temperature fixation and storage stability in high-temperature environments. [Solution] A toner containing a graft polymer resin including a polyolefin resin and a styrene-based resin, a polyester resin, and a release agent, wherein when the toner heated to 50°C is measured by FTIR-ATR (total internal reflection absorption infrared spectroscopy), the peak intensity derived from the release agent is set to Wk-50 and the peak intensity derived from the polyester resin is set to RK-50; when the toner heated to 70°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-70 and the peak intensity derived from the polyester resin is set to RK-70; and when the toner heated to 90°C is measured by FTIR-ATR, the peak intensity derived from the release agent is set to Wk-90 and the peak intensity derived from the polyester resin is set to RK-90, the toner satisfies the following formulas (1) and (2). (Wk-70 / RK-70) / (Wk-50 / RK-50)≦1.1···(1) 1.5≦(Wk-90 / RK-90) / (Wk-50 / RK-50) (2)
Owner:RICOH CO LTD
Polyester resin for powder coating as well as preparation method and application of polyester resin
The invention belongs to the technical field of coatings, and particularly relates to polyester resin for a powder coating as well as a preparation method and application of the polyester resin. The polyester resin for the powder coating is prepared from the following raw materials: polyol, polyacid, polyamide acid oligomer and an acidifying agent. The polyamide acid oligomer is introduced in the synthesis of the polyester resin, an amide structure in the polyamide acid oligomer can improve the electrification property of polyester, the improvement of the electrification property is beneficial to improving the powdering rate of powder, and meanwhile, an N-H bond in the amide structure has relatively strong polarity and hydrogen-bond interaction; the wettability of the base material is obviously improved through the synergistic effect of the two. Therefore, the polyamide acid oligomer is introduced into the polyester resin and is combined with other components, so that the corner coverage rate of the powder coating can be obviously increased.
Owner:GUANGZHOU KINTE IND +1
Toner, developer, toner storage unit, image forming apparatus, image forming method, method for manufacturing printed materials, and method for manufacturing toner.
To provide a toner that offers excellent low-temperature fixation while simultaneously achieving both filming resistance in high-temperature, high-humidity environments and release properties during fixation. [Solution] A toner containing toner particles that include a polyester resin, an aromatic petroleum resin, and a mold release agent, A toner characterized in that, when the cross-section of the toner particles is observed with a scanning electron microscope, the domains of the release agent satisfy the following requirements. (Requirements) Each toner particle contains, on average, 2 to 8 release agent domains with a major axis of 400 nm or more and an aspect ratio of 0.7 or less calculated by the following formula (1). Aspect ratio = (Short diameter of release agent domain) / (Long diameter of release agent domain) Equation (1)
Owner:ETRIA CO LTD
Textured high-toughness polyester resin as well as preparation method and application thereof
The invention belongs to the technical field of coatings, and particularly relates to textured high-toughness polyester resin as well as a preparation method and application thereof. The textured high-toughness polyester resin is prepared from the following raw materials: polyol, polyacid, carboxyl silicone oil, a dynamic cross-linking agent, an acidolysis agent and carboxyl-terminated nitrile rubber. The dynamic cross-linking agent contains at least two carboxyl groups and one disulfide bond. Through the synergistic effect of the dynamic cross-linking agent, the carboxyl silicone oil and the carboxyl-terminated nitrile rubber, the problem that a traditional texture type powder coating is insufficient in toughness is solved, and the impact resistance, the flexibility, the low-temperature mechanical property and the self-repairing capacity of a coating are remarkably improved while clear textures are kept.
Owner:GUANGZHOU KINTE IND +1
Unsaturated polyester resin viscosity testing device
The utility model relates to the technical field of material testing, and discloses an unsaturated polyester resin viscosity testing device which comprises a fixing block and a support, a stirring assembly is arranged on the right side of the support, a connecting column is fixedly connected to the bottom of the fixing block, and a telescopic assembly is arranged in the connecting column; the stirring assembly comprises a motor fixedly connected to the right side of the support, and the driving end of the motor is rotationally connected with a second gear. According to the unsaturated polyester resin viscosity testing device, when the viscosity of resin needs to be detected, a second gear is driven to rotate through the driving end of a motor, the second gear drives two first gears through rotation, and the first gears drive a shell and a fixing plate in the rotation process to stir the viscosity of the resin; the viscosity of resin on the inner side of the water tank can be cleaned through the mounting blocks on the front side and the rear side of the shell and the brush during stirring, various components in the resin can be fully mixed through stirring, local concentration difference is avoided, and the viscosity detection is more accurate.
Owner:WUXI HENGDA AQUATIC EQUIP
Tinplate snap lid outer coating suitable for strong alkali sterilization process
The invention discloses a tinplate snap lid outer coating suitable for a strong alkali sterilization process, which comprises the following raw materials in percentage by weight: 40 to 60 percent of organic silicon modified polyester resin, 5 to 15 percent of amino resin, 5 to 15 percent of blocked isocyanate, 20 to 40 percent of solvent, 0.2 to 5.0 percent of wax powder, 0.01 to 0.5 percent of acid catalyst and 0.05 to 1.0 percent of defoaming agent. 0.5%-2.0% of an adhesion promoter, 0.01%-0.5% of a leveling agent; according to the organic silicon modified polyester resin, 2, 2, 4, 4-tetramethyl-1, 3-cyclobutanediol is introduced into polyester resin, and gamma-glycidyl ether oxypropyl trimethoxy silane is grafted into the polyester resin. The coating forms a protective coating on the surface of tinplate, has excellent mechanical properties, flexibility, machinability and water resistance, and can obviously improve the defects of the coating in high-temperature sterilization under a strong alkali condition.
Owner:FUJIAN HERUN PACKAGING COATING CO LTD
Floor with self-cleaning function and preparation method
PendingCN121495448APolyurea/polyurethane coatingsRadiation-absorbing paintsPolymer sciencePolyester resin
The invention relates to the field of floors, and particularly discloses a floor with a self-cleaning function and a preparation method.The floor comprises a main body layer, the top face of the main body layer is sequentially provided with a self-cleaning coating, an anti-fouling protection layer, a repairing function layer and a surface layer, and the self-cleaning coating is a nano composite coating; the anti-fouling protection layer is a polyurethane resin and super-hydrophobic substance mixed coating, the repairing function layer is a polyurethane resin and microcapsule mixed coating, repairing components are contained in microcapsules, the surface layer is a mixed coating of polyester resin, wear-resistant particles and an anti-ultraviolet additive, and the surface layer is a polyurethane resin and super-hydrophobic substance mixed coating. The floor with the self-cleaning function has the super-hydrophobic function, the self-cleaning function, the antifouling function, the wear-resisting function and the self-repairing function, and the high-performance requirement for the floor in the modern home and commercial environment is met.
Owner:ANHUI YOUSHENGMEI NEW MATERIAL TECH CO LTD
Polyester-based shrink film
A heat-shrinkable polyester film is provided, in which the loss coefficient and the like are controlled in a plurality of temperature regions, and which has excellent wrinkle resistance characteristics. The heat-shrinkable polyester film is a heat-shrinkable polyester film derived from a polyester resin composition containing 30% to 90% by weight of an amorphous polyester resin and 10% to 70% by weight of a crystalline polyester resin with respect to the total amount, in which (a) a loss coefficient obtained using a dynamic viscoelasticity measuring apparatus has a first loss coefficient peak in a temperature region of below 100° C.; (b) a loss coefficient obtained in the same manner has a second loss coefficient peak in a temperature region of 100° C. or higher; and (c) a heat shrinkage ratio obtained when the film is immersed in hot water at 80° C. for 10 seconds is 30% or more.
Owner:C I TAKIRON CORP +1
Method for preparing bis(glycol)terephthalate and polyester resin using same
PendingEP4458801A4Preparation by ester-hydroxy reactionPreparation by transesterificationPolymer sciencePolyester resin
Through a transesterification reaction in which a predetermined amount of bis(2-hydroxyethyl)terephthalate relative to glycol is fed in a divided or continuous manner, bis(glycol)terephthalate with a low residual amount of an ethylene glycol derivative is prepared, and polyester engineering products or biodegradable polyester products with high crystallinity can be produced therefrom.
Owner:SK CHEMICALS CO LTD
Aliphatic polyester, resin composition, method for producing a shaped article and aliphatic polyester, and block copolymer, resin composition and shaped article
This invention relates to: an aliphatic polyester containing structural units (a1) derived from an aliphatic diol having alkyl branches and a main chain having 3 or more carbon atoms and structural units (a2) derived from an aliphatic dicarboxylic acid, and satisfying specific conditions; a resin composition comprising the aliphatic polyester and a molded article thereof; a method for manufacturing the aliphatic polyester satisfying the specific structure and conditions; a block copolymer satisfying the specific structure and conditions; a resin composition comprising the block copolymer and a molded article thereof; and a method for manufacturing the block copolymer satisfying the specific structure and conditions (the specific structures and conditions are as described in the specification).
Owner:KURARAY CO LTD
Polyester resin composition and resin molded article
This polyester resin composition contains a polybutylene terephthalate resin, a recycled polyethylene terephthalate resin, a transesterification inhibitor, a carbodiimide compound, and an elastomer. The amount of terminal hydroxyl groups in the polybutylene terephthalate resin is 30-70 mmol / kg relative to the total amount of the polybutylene terephthalate resin and the recycled polyethylene terephthalate resin. The amount of the carbodiimide compound is 0.2-1.5 mass% relative to the total amount of the polyester resin composition. The amount of the elastomer is 3-15 mass% relative to the total amount of the polyester resin composition.
Owner:DAICEL CORP
High strength biodegradable co-polyester resin containing cyclic aliphatic monomer and preparing method of the same
The present disclosure relates to a co-polyester resin of a composition including dicarboxylic acid, wherein the composition includes C2-5 aliphatic diol and isosorbide in an amount of 70 mol to 97.5 mol and 2.5 mol to 30 mol, respectively, based on 100 mol of the dicarboxylic acid, and the dicarboxylic acid includes C2-6 aliphatic dicarboxylic acid and cyclic aromatic dicarboxylic acid.
Owner:RES & BUSINESS FOUND SUNGKYUNKWAN UNIV
Recycled polyester resin and article manufactured therefrom
The present invention relates to a recycled polyester resin and an article manufactured therefrom, wherein the recycled polyester resin comprises repeat unit A derived from a recycled raw material, and the recycled raw material comprises at least one of a recycled diol component and a recycled acid component. The recycled polyester resin can exhibit eco-friendliness while being excellent in quality such as heat resistance and color.
Owner:SK CHEMICALS CO LTD