456 results about "Urethane acrylate" patented technology

The invention provides LED-UV (Light Emitting Diode-Ultraviolet) curing ink as well as a preparation method and application thereof, and the LED-UV curing ink is prepared from the following components in parts by weight: 30 to 50 parts of modified polyurethane acrylate resin, 15 to 30 parts of modified epoxy acrylate resin, 10 to 15 parts of amino resin, 15 to 30 parts of acrylate monomer, 6 to 10 parts of photoinitiator, 1 to 3 parts of adhesion promoter, 2 to 4 parts of coupling agent, 0.5 to 1 part of defoaming agent and 1 to 2 parts of flatting agent. The modified polyurethane acrylate resin is hydroxyl and / or carboxyl modified polyurethane acrylate resin; the modified epoxy acrylate resin is polyurethane modified epoxy acrylate resin. After the ink is photo-cured, a paint film has good flexibility, adhesive force and chemical resistance; the hardness, the curing speed and the chemical resistance of a paint film can be improved; the adhesive force to a base material can be promoted; and the water resistance and the wine soaking resistance of a paint film are enhanced.

The invention discloses a full-spectrum protective anti-fingerprint resin lens and a preparation method thereof. The full-spectrum protective anti-fingerprint resin lens comprises a functionalized resin base material and a gradient composite functional coating. The base material takes polyurethane acrylate as a matrix, and nano cerium oxide, nano barium titanate and nano tungsten oxide functional particles are uniformly dispersed through in-situ polymerization, so that base material intrinsic protection on ultraviolet rays, harmful blue light and near-infrared light is realized. The gradient coating comprises an adhesion promoting layer, a full-spectrum repairing and protecting layer and an anti-fingerprint layer from inside to outside, a stable composite system is formed through chemical bonding, protection is further reinforced, and the lens is endowed with super-hydrophobic and oleophobic anti-fingerprint characteristics. Through the integrated design of base material modification and coating compounding, the technical problems that an existing lens is single in protection wave band, not lasting in performance and prone to being stained with fingerprints are solved, and meanwhile the lens has high light transmittance, low reflection, excellent wear resistance and impact resistance and excellent comprehensive performance.

The invention discloses a wear-resistant environment-friendly PET base material adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tapes, raw materials comprise a PET adhesive tape film and an EB curing modified adhesive, the surface of the modified PET adhesive tape film subjected to corona treatment is coated with the EB curing modified adhesive, then electron beam radiation curing is carried out, the absorbed dose of electron beams is 38-42 kGy, and the EB curing modified adhesive is prepared. And then cooling, rolling and curing to obtain the wear-resistant environment-friendly PET base material adhesive tape. The modified PET adhesive tape film is prepared from the following raw materials: PET resin and modified polyolefin elastomer master batch; the EB curing modified adhesive is prepared from the following raw materials: butyl acrylate, 2-ethylhexyl acrylate, tripropylene glycol diacrylate, acrylate resin, urethane acrylate and starch modified core-shell microsphere powder. According to the mode, a modification process is added in the preparation process of the PET adhesive tape film and the adhesive, and finally the environment-friendly PET base material adhesive tape with excellent comprehensive performance is prepared.

The invention discloses a wear-resistant coating and application thereof on a leather surface, and belongs to the technical field of leather finishing. The coating comprises a functionalized polyurethane-acrylate composite emulsion, a photoinitiator, an auxiliary agent and deionized water. Wherein the composite emulsion is prepared from hyperbranched polyester polyol, a dynamic bond chain extender and the like through prepolymerization, fluorine-containing grafting and in-situ sol-gel reaction, a hyperbranched skeleton provides mechanical support, double dynamic bonds endow a self-repairing function, in-situ nano-compounding enhances wear resistance, a diurea hydrogen bond enhances binding force, and a fluorine-containing side chain endows a coating with hydrophobic and stain-resistant performance; and preparing the coating by matching with a gradient curing process. The coating prepared by the invention has high wear resistance, efficient self-repairing property, firm adhesive force, excellent stain resistance and leather adaptation flexibility, and meets the actual requirements of middle and high-end leather finishing.

The invention belongs to the technical field of UV ink formula design and digital printing application, and particularly relates to scratch-resistant UV ink, a preparation method thereof and application of the scratch-resistant UV ink to digital printing. The scratch-resistant UV ink comprises the following raw materials in parts by weight: 15-25 parts of epoxy acrylate; 10 to 20 parts of polyurethane acrylate; 15 to 25 parts of a bifunctional monomer; 5-10 parts of a monomer with three functional groups and more than three functional groups; 3 to 5 parts of an alpha-hydroxy ketone photoinitiator; 2 to 4 parts of an acyl phosphorus oxide photoinitiator; 2 to 5 parts of organically modified nano silicon dioxide; 0.1 part to 0.5 part of a flatting agent; 0.5 to 1.5 parts of a dispersing agent; 10 to 15 parts of pigment; the bifunctional monomer is tripropylene glycol diacrylate; the monomer with three functional groups and more than three functional groups is trimethylolpropane triacrylate. The ink has pencil hardness greater than or equal to 3H and excellent flexibility, the adhesive force on substrates such as PC, PET, metal and the like reaches 0 level, the printing process is simplified, and the ink is suitable for digital printing in various scenes.

The invention discloses an organic silicon modified polyurethane-acrylate composite emulsion and a preparation method of the organic silicon modified polyurethane-acrylate composite emulsion, and relates to the technical field of polymer composite emulsions. Comprising the following raw materials: 70 to 120 parts of oligomer polyol with an average molecular weight of 500 to 2000, 5 to 15 parts of a composite organosilicon component, 40 to 80 parts of diisocyanate, 0.05 to 0.2 part of a catalyst, 2 to 5 parts of a hydrophilic chain extender, 3 to 6 parts of a self-crosslinking hydrophilic chain extender, 4 to 12 parts of a neutralizer, 2 to 8 parts of a water-based chain extender and 50 to 150 parts of an acrylate monomer. 1-5 parts of an acrylate functional monomer, 1-3 parts of a cross-linking agent, 2-8 parts of an emulsifier and 0.5-3 parts of an initiator; the organic silicon modified polyurethane-acrylate composite emulsion prepared by the invention has a composite core-shell structure taking organic silicon modified polyurethane as a core and an acrylate polymer as a shell, so that the emulsion can form a more compact and more stable three-dimensional cross-linked network during film formation, and the weather resistance, water resistance, mechanical strength and surface glossiness of a coating film are remarkably improved.

The invention discloses a protective base film for a polaroid and a preparation method of the protective base film, and belongs to the technical field of optical display equipment protective films. The protective base film comprises an antistatic PET base material layer and a self-adhesive layer, the antistatic PET base material layer is prepared by blending optical-grade PET slices and antistatic master batches, the master batches are prepared by taking ionic liquid dihydric alcohol as a comonomer, and the base film is endowed with lasting and stable intrinsic antistatic performance; the self-adhesive layer is formed by melting and blending a polyurethane acrylate prepolymer, a modified montmorillonite filler, other matrix materials and auxiliaries according to a specific ratio and carrying out an online UV curing process. Through innovative material design and an integrated forming process, the prepared protective base film has excellent optical transparency, lasting antistatic property, appropriate bonding strength, clean stripping property and outstanding damp-heat aging resistance, the comprehensive performance is remarkably superior to that of a traditional gluing protective film, and the production process is more environment-friendly and efficient.

The invention discloses a light-cured resin and a preparation method thereof, and an imprinting adhesive, and relates to the technical field of light-cured resins, the light-cured resin comprises the following components by weight: 30-40 parts of a urethane acrylate prepolymer; 20 to 30 parts of a multifunctional acrylate monomer; 1 to 4 parts of fluorine-containing acrylate; 1 to 2 parts of a photoinitiator; 0.9 to 1.2 parts of a flatting agent; the mass ratio of the flatting agent, the fluorine-containing acrylate and the coupling agent has a remarkable synergistic window, and strong covalent bonding is formed on a resin-substrate interface by utilizing the directional migration regulation and control effect of the flatting agent on the fluorine-containing acrylate and the coupling agent; according to the present invention, with the combination of the two components, the stress release during the demolding process only occurs on the template-resin interface so as to achieve the zero-layering demolding, and the other components are matched so as to provide the excellent mechanical property of the resin, the ultra-low demolding force, the high pattern fidelity and the long-term reliability at the same time, and the resin is suitable for the high-end manufacturing fields such as the high-precision optical element, the semiconductor packaging and the like.

The invention relates to the technical field of ink, in particular to modified filler environment-friendly ink and a preparation method thereof. The modified filler environment-friendly printing ink is prepared from the following raw materials in parts by mass: 20 to 40 parts of waterborne acrylic emulsion, 10 to 20 parts of polyurethane acrylate prepolymer, 1 to 5 parts of bis (trimethylolpropane) tetraacrylate, 10 to 20 parts of pentaerythritol tetraacrylate, 5 to 10 parts of mica powder, 1 to 2 parts of 3-aminopropyltriethoxysilane, 0.1 to 1 part of epoxy chloropropane and 5 to 10 parts of amino-terminated polyamidoamine. The coating is prepared from the following components in parts by weight: 1-2 parts of a photoinitiator, 1-3 parts of a dispersing agent, 1-2 parts of a reactive diluent, 1-2 parts of an organic silicon defoaming agent, 0.5-1.5 parts of a mildew preventive, 0.1-1 part of a thixotropic agent, 5-15 parts of pigment, 1-5 parts of kaolin, 5-10 parts of polyethylene wax and 1-5 parts of water. The obtained ink is good in dispersion stability, good in flexibility after being cured and excellent in adhesive force.

The invention provides a high-rheology lasting type coating and a preparation method of the high-rheology lasting type coating. The coating is prepared from the following raw materials: 6 to 12 parts of fluorosilicone grafted hyperbranched polyurethane core-shell functional microspheres, 2 to 5 parts of graphene-nano silicon dioxide composite rheological regulator, 25 to 35 parts of epoxy acrylate resin, 15 to 25 parts of polysiloxane modified waterborne polyurethane acrylate emulsion, 8 to 15 parts of filler, 0.8 to 1.6 parts of rheological agent, 1.8 to 7.1 parts of functional additive, 10 to 18 parts of solvent and 0.1 to 0.3 part of preservative. The obtained coating has high thixotropy, excellent long-acting durability and multiple protection effects of fire prevention, water prevention, pollution resistance and the like, and meanwhile, the fidelity of a coating mold pressing structure and the construction applicability can be guaranteed.

The application provides a plant oil modified fluorine-free anti-fingerprint transparent coating material and a preparation method and application thereof, and belongs to the technical field of anti-fingerprint coating materials.The plant oil modified fluorine-free anti-fingerprint transparent coating material is prepared from an organic silicon modified polyurethane acrylate prepolymer, plant oil, a photoinitiator, an organic solvent and hydrophobic nanoparticles, and is formed through ultraviolet light curing.The prepared organic silicon modified polymer coating has low surface energy and environmental protection, can be rapidly photocured to reach a surface dry state under ultraviolet light irradiation, improves production efficiency, and has transparency, excellent hydrophobic effect and anti-fingerprint performance.The results of the examples show that the water contact angle is more than 100 degrees, the light transmittance is more than 80 percent, and the anti-fingerprint performance of removing fingerprint marks by wiping with a paper towel for 3 times or less.

The application relates to the technical field of packaging cartons, and discloses a high-strength lightweight packaging carton and a preparation method thereof. The preparation steps are as follows: S1: uniformly mixing trihydroxy heptaoctyl poss, 3-bromopropylene, sodium carbonate and tetrahydrofuran, reacting at 50-60 DEG C for 3-5 h to obtain modified poss; S2: taking hexamethoxymethyl melamine, ethanol and the modified poss to prepare a modified etherified amino resin; S3: uniformly mixing the modified etherified amino resin, mercapto-modified silicon dioxide and a photoinitiator to obtain an additive; uniformly stirring acrylic emulsion, epoxy / acrylic core-shell emulsion, hyperbranched polyurethane acrylate and the additive to obtain reinforcing coating; and coating the reinforcing coating on the surface of the lightweight packaging carton, drying and curing to obtain the high-strength lightweight packaging carton.

The invention relates to an electron beam curing composition, a coating, a preparation method and a coating method thereof, and a coated product. The electron beam curing composition comprises the following substances in parts by mass: 50-65 parts of first resin, 15-25 parts of second resin, 12-20 parts of an active diluent monomer and 2-6 parts of an antistatic agent, wherein the first resin comprises at least one of aliphatic epoxy acrylate and polyester acrylate, and the functionality of the first resin is greater than or equal to 4; the second resin comprises aliphatic polyurethane acrylate, and the functionality of the second resin is 2. An electron beam curing system without a photoinitiator is adopted, first resin and second resin with preset functionality are compounded with an active diluting monomer according to preset compatibility, the mechanical property of a formed coating is optimized, the adhesive force between the coating and a base plate is improved, an antistatic agent can be compounded to form an antistatic coating, and the anti-static performance of the coating is improved. And the requirements of roll coating processing of transparent plates on the anti-static performance, the cleanliness and the durability of the coating can be met.

The application discloses a UV light-cured coating composition, a preparation method thereof and application thereof on an aluminum base. The UV light-cured coating composition comprises a UV light-cured primer and a UV light-cured topcoat. The UV light-cured primer is composed of polyurethane acrylate resin, first acrylate monomer, photoinitiator, adhesion promoter and wetting and leveling agent in a specific ratio, and can be directly cured on the surface of an aluminum base without pre-treatment to form a coating layer with excellent adhesion. The formula of the UV light-cured topcoat is optimized, so that when the topcoat is used in combination with the primer, the combination of the topcoat and the primer is effectively promoted, and the coating layer has excellent insulation performance. The UV light-cured coating composition provided by the application can form a composite coating layer with strong adhesion, excellent insulation performance and high stability on the surface of the aluminum base without pre-treatment such as laser texturing or chemical passivation.

The application discloses a wear-resistant coating and application thereof to a leather surface, and belongs to the technical field of leather finishing. The coating comprises a functional polyurethane-acrylate composite emulsion, a photoinitiator, an additive and deionized water. The composite emulsion is prepared through pre-polymerization, fluorine-containing grafting and in-situ sol-gel reaction of hyperbranched polyester polyol, dynamic bond chain extender and the like. The hyperbranched skeleton provides mechanical support, the double dynamic bonds endow the coating with self-repairing function, in-situ nano-composite enhances wear resistance, the double urea hydrogen bonds strengthen the bonding force, and the fluorine-containing side chains endow the coating with hydrophobic and stain-resistant properties. The coating is prepared by matching a gradient curing process. The coating prepared by the application has high wear resistance, efficient self-repairing property, firm adhesion, excellent stain resistance and leather-adaptive flexibility, and meets the actual needs of medium and high-end leather finishing.

The invention relates to the field of photocuring adhesives, and mainly relates to a UV adhesive for wig connection and a preparation method thereof. The UV adhesive for wig connection is prepared from the following components in parts by weight: 30 to 50 parts of urethane acrylate, 45 to 70 parts of first reactive diluent, 2 to 4 parts of photoinitiator and 2 to 4 parts of fumed silica, the first active diluent is prepared from two or a mixture of more than two of acryloyl morphine, 2-acrylic acid-2-(2-phenoxy ethyoxyl) ethyl ester, dicyclopentadiene acrylate and ethylene glycol dicyclopentenyl ether methacrylate. The preparation method comprises the following steps: mixing the components, heating in a water bath, and stirring to obtain the UV adhesive for wig connection. The UV adhesive for wig connection provided by the invention is low in odor, good in durability and good in matte effect.

The application discloses a kind of bio-based LED light-cured top-dipping pencil paint and its preparation method and application, including the following mass fraction of composition: epoxy acrylate: 27%~40%, epoxy soybean oil acrylate: 12%~15%, di-functional polyurethane acrylate: 8%~30%, dipropylene glycol diacrylate: 10%~20%, fumed silica: 0.2%~0.5%, inorganic filler: 10%~20%, photoinitiator: 5%~10%, auxiliary agent: 0.5%~1%. The pencil paint of the application meets the requirements of relevant laws and regulations for pencil paint export, the bio-based carbon content is greater than or equal to 15%, uses LED lamp to cure, is energy-saving and environment-friendly, the paint film has high flexibility, can be used for eyebrow pencil, and there is no risk of subsidence.

This invention discloses a polyurethane-based photocurable resin lens and its preparation method, relating to the field of optical resin lens technology. It is prepared from the following components in parts by weight: 30-40 parts of fluorosilicone block polyurethane acrylate oligomer, 10-20 parts of polythiol, 1-3 parts of photoinitiator, 0.05-0.1 parts of red pigment, 0.05-0.1 parts of blue pigment, 1-3 parts of additives, 0.5-2.5 parts of functional additives, 20-30 parts of reactive diluent, and 5-8 parts of other monomers; wherein the other monomers are 1,6-hexamethylene diisocyanate and 3,9-divinyl-2,4,8,10-tetraoxaspiro[5.5]undecane compounded in a mass ratio of (3-5):1. This lens, through optimized formulation, achieves a synergistic improvement in optical performance, mechanical properties, and environmental resistance.

This invention belongs to the field of UV-curable optical materials technology, specifically relating to a UV transfer optical adhesive, its preparation method, and its applications. The UV transfer optical adhesive comprises the following components in parts by weight: 25-45 parts of inorganic nano-modified polyurethane acrylate oligomer, 20-40 parts of silicone-modified acrylate oligomer, 25-50 parts of high-transparency acrylate monomer, 5-15 parts of easy-to-release UV-curable resin, 2-5 parts of photoinitiator, 0.2-1 part of leveling agent, and 0.2-1 part of defoamer. This invention solves the problems of poor release properties, high curing shrinkage, poor precision in replicating microstructures, and insufficient resistance to damp heat and yellowing in existing UV transfer adhesives, meeting the stringent requirements of UV optical adhesives in high-end fields such as optical brightening films, automotive displays, and new energy optical devices.

This invention provides a UV-curable coating composition, its preparation method, and its application. The UV-curable coating composition of this invention comprises the following components in parts by weight: 40-60 parts of silicone-modified polyurethane acrylate, 5-30 parts of cyclic ether acrylate or its derivatives, 2-10 parts of silane coupling agent, 30-80 parts of filler, and 0.5-5 parts of photoinitiator; wherein the reaction raw materials for the silicone-modified polyurethane acrylate include the following components in parts by weight: 15-30 parts of isocyanate, 20-100 parts of hydroxyl-terminated polydimethylsiloxane, 20-100 parts of aromatic polyester polyol, and 3-15 parts of end-capping agent. By using hydroxyl-terminated polydimethylsiloxane to modify the polyurethane acrylate, and simultaneously adding cyclic ether acrylate or its derivatives as diluent monomers to the coating composition, the resulting coating exhibits high resistance to damp heat, high strength, and high elasticity.

The invention provides photosensitive resin, an anti-dazzle film, a preparation method of the anti-dazzle film and a degradation method of the anti-dazzle film, and relates to photosensitive resin in the field of display and optical film materials. The photosensitive resin is prepared by reaction of raw materials including a urethane acrylate oligomer, an aziridine compound and an acrylic monomer, and the molecular structure of the photosensitive resin has a beta-amino ester bond and an ultraviolet-curable acrylate group. The degradable photosensitive resin is provided by introducing beta-amino ester bonds into the photosensitive resin, so that the anti-dazzle film prepared from the coating composition containing the photosensitive resin can be quickly hydrolyzed and degraded under a mild hydrothermal condition, the problem of pollution of a polymer coating in electronic waste is fundamentally solved, and the anti-dazzle film has the advantages of high anti-dazzle performance and the like. And the environmental problem caused by the method can be effectively relieved.

The invention discloses a high-temperature aging resistant UV mirror release agent and a preparation method thereof, and belongs to the technical field of release agents. The preparation method comprises the following steps: firstly, mixing 75-85 parts by weight of DA type polyurethane acrylate resin, 10-20 parts by weight of a reactive diluent and 3-5 parts by weight of a photoinitiator, then adding 0.3-0.8 part by weight of a leveling agent and 0.3-0.8 part by weight of fumed silica, mixing, and then defoaming to obtain the high-temperature aging resistant UV mirror release agent. The UV mirror surface release agent provided by the invention has good high-temperature aging resistance, can release internal stress of a polymer network through reversible fracture and re-formation of D-A bonds in a high-temperature environment, inhibits cross-linking density change caused by irreversible relaxation of chain segments, drives molecular chains to move and realizes microstructure healing, and has good application prospects. The completeness of the coating and the stability of the release force are ensured.

This invention relates to a polyurethane acrylate emulsion, its preparation method, and its application. The raw materials for preparing the polyurethane acrylate emulsion include, by weight, the following components: 1-10 parts by weight of an intermediate, 2-10 parts by weight of hydroxyl acrylate, 2-15 parts by weight of styrene, 3-10 parts by weight of alkyl acrylate, and 0.1-1 parts by weight of an initiator. The raw materials for preparing the intermediate include 5'-methoxy-2'-methylbiphenyl-3-carboxylic acid, glycidyl ether tert-carbonate, and diisocyanate. The polyurethane acrylate emulsion provided by this invention, through the design of its raw materials, can be used in tack coats and can significantly improve the drying speed and anti-tack properties of tack coats.

The invention relates to a semi-cured seam beautifying adhesive tape as well as a preparation method and application thereof. The semi-cured seam beautifying adhesive tape is prepared from the following raw materials in percentage by mass: 30 to 55 percent of polyurethane acrylate oligomer, 18 to 35 percent of reactive diluent, 5 to 20 percent of reworking adjusting monomer, 3 to 7 percent of photoinitiator, 1 to 3 percent of adhesion promoter, 0.5 to 1.5 percent of flatting agent and 0.2 to 0.8 percent of defoaming agent. The repair adjusting monomer comprises a soft monomer and / or a dynamic crosslinking monomer. The semi-cured seam beautifying adhesive tape provided by the invention is simple and convenient to construct and use, can be completed only by directly pressing the semi-cured seam beautifying adhesive tape into a tile seam and performing light curing, can be cleaned and replaced after being heated, is simple in construction and installation operation, convenient to clean and convenient to maintain in the later period, and can remarkably save time and labor cost.

The invention belongs to the technical field of photocuring materials, and particularly relates to an infrared-resistant welding photocuring adhesive and a preparation method thereof. The infrared-resistant welding photocuring adhesive is prepared from the following components in parts by weight: 30 to 50 parts of urethane acrylate, 5 to 25 parts of epoxy acrylate, 20 to 40 parts of acrylate monomer, 1 to 4 parts of free radical photoinitiator and 3 to 5 parts of adhesion promoter. The photocuring adhesive provided by the invention can still keep good adhesive strength after undergoing an infrared welding process, has good yellowing resistance, and meets the packaging requirements of solar cells.

The invention relates to the technical field of adhesives, and discloses an adhesive film capable of bonding UV curing ink and a preparation method of the adhesive film. According to the invention, the EVA composite adhesive is coated on the surface of the PET film base material layer, and then a layer of PET release film is covered, so that the adhesive film capable of bonding the UV curing ink is obtained. The EVA composite adhesive comprises EVA resin, an alkenyl monomer, methacrylamide glucose, an initiator, alkyl isocyanate and the like; the EVA composite adhesive layer contains a large number of hydroxyl groups and carbamate groups and has better adhesive property and peel strength with urethane acrylate, and the acrylic resin adhesive layer contains a heat-resistant furan ring structure, so that the heat resistance and thermal stability of the acrylic resin adhesive layer are improved.

The application relates to a UV conductive frame adhesive for bonding a flexible bendable substrate and a preparation method thereof, and the preparation raw materials comprise polyurethane acrylate, mixed acrylic monomers, a photoinitiator, a coupling agent and conductive fillers. The preparation method is as follows: mixing the polyurethane acrylate and the photoinitiator according to a proportion to obtain an active mixed system; adding the mixed acrylic monomers and the coupling agent to obtain an organic active system; adding the conductive fillers into the organic active system, mixing and obtaining conductive UV adhesive; adding 30% zirconium beads for grinding and vacuumizing, and the conductive frame adhesive is obtained. The UV conductive frame adhesive of the application uses mixed acrylic monomers as raw materials, has no ion risk, and specific proportion mixed monomers can adjust performance, adapt to flexible screens, and promote dispersion of conductive fillers; ATO as the filler has good dispersion, good light transmission, strong barrier and high cost performance; on the process, the zirconium beads grind ATO to preserve the crystal form, stabilize the conductive network and inhibit ion migration; the room temperature UV single-step curing has the advantages of free radical polymerization, is free of drying, and meanwhile, the polyurethane acrylate as a skeleton increases the durability.

A film-forming thermoset coating composition includes: (a) an aqueous medium; and Option 1 and / or Option 2 as follows: Option 1: (b1) polyurethane-acrylate core-shell particles including a polymeric acrylic core at least partially encapsulated by a polymeric shell including urethane linkages, where the polymeric shell includes an acid functional group and two or more hydrazide functional groups, where the polymeric shell is covalently bonded to at least a portion of the polymeric core; and (c1) (i) formaldehyde; (ii) polyformaldehyde; and / or (iii) a compound that generates formaldehyde; Option 2: (b2) polyurethane-acrylate core-shell particles including a polymeric acrylic core at least partially encapsulated by a polymeric shell including urethane linkages, where the polymeric shell includes an acid functional group and two or more N-methylolated hydrazide functional groups, where the polymeric shell is covalently bonded to at least a portion of the polymeric core.

The present application relates to a kind of water-based paint for leather surface waterproof, belong to coating technical field.The water-based paint is made of the following components: 80 parts polyether sulfone modified polyurethane-acrylate composite resin dispersion, 5 parts crosslinking agent polycarbodiimide, 10 parts anti-adhesive polydimethylsiloxane, 10 parts cosolvent dipropylene glycol methyl ether, 10 parts nano reinforcing material, 1.5 parts amino-terminated hyperbranched polyamide.Core resin dispersion is prepared by grafting onto polyurethane-acrylate skeleton through sulfonated polyether sulfone chemistry.The present application is prepared by unique resin chemical modification and nanocomposite technology, so that the obtained coating has excellent waterproofness, high adhesion, good mechanical strength and anti-aging property, especially suitable for high requirements such as automotive interior, furniture and other leather surface treatment, while meeting environmental protection requirements.

The application discloses a preparation process of high-adhesion EB electron beam curing display cover plate ink, and relates to the technical field of ink preparation. The process uses high-functionality acrylate monomers, polyurethane acrylate prepolymers and an interface coupling agent as main components, realizes excellent adhesion and abrasion resistance to glass and plastic substrates through electron beam irradiation and rapid curing, and meets the requirement of high light transmittance. The process overcomes the problems of insufficient adhesion and high residual monomer of the existing EB curing ink, improves the comprehensive performance of the EB curing ink, and is suitable for the field of high-end display cover plate printing and manufacturing.