325 results about "Acrylate polymer" patented technology

The invention discloses a long-chain alkyl acrylate polymer dispersion liquid which is composed of a long-chain alkyl acrylate polymer, alcoholic hydroxyl-terminated long-chain alkyl silicone oil, a surfactant, a cosolvent and water. The long-chain alkyl acrylate polymer at least comprises a long-chain alkyl acrylate monomer unit and a monomer unit containing an active hydroxyl group; and the alcoholic hydroxyl-terminated long-chain alkyl silicone oil accounts for 15-40% of the total mass of the long-chain alkyl acrylate polymer and the alcoholic hydroxyl-terminated long-chain alkyl silicone oil. The fluorine-free fabric finishing agent dispersion liquid is good in stability and excellent in continuous processing performance when waterproof processing is carried out on fabrics, and the fabrics treated by the fluorine-free fabric finishing agent dispersion liquid are excellent in waterproof performance and good in washability.

The invention discloses a modified acrylate emulsion adhesive as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The modified acrylate emulsion adhesive is prepared by adopting a semi-continuous emulsion polymerization method. The water-based adhesive is prepared from the following raw materials in parts by weight: 5-20 parts of water-based polyolefin, 50-200 parts of deionized water, 0.5-4 parts of an emulsifier, 20-50 parts of an acrylate monomer, 1-10 parts of an acrylic monomer, 0.2-1.5 parts of an initiator, 0-50 parts of styrene, 0.1-2 parts of a cross-linking agent and 0.5-15 parts of a neutralizer. The modified acrylate emulsion adhesive is obtained by taking the water-based polyolefin as a core structure of the emulsion and taking the acrylate polymer as a shell structure of the emulsion, and the adhesive has good compatibility with a polyolefin diaphragm and an electrolyte, so that the synergism of a lithium ion battery negative electrode, the electrolyte and the diaphragm is promoted; further, the electrochemical performance of the lithium ion battery is improved.

The invention provides a high-temperature-resistant and high-humidity-resistant double-sided tape for bonding a PC (Polycarbonate) base material. The high-temperature-resistant and high-humidity-resistant double-sided tape has a four-layer structure, namely a first adhesive layer, a reinforced body layer, a second adhesive layer and a release protective layer in sequence. The two adhesive layers are acrylate pressure-sensitive adhesives and comprise an acrylate polymer solution, tackifying resin, a zeolite molecular sieve and a cross-linking agent. The key of the pressure-sensitive adhesive is an acrylate polymer solution formula, the rigidity of a molecular chain is enhanced by introducing methyl methacrylate and isobornyl methacrylate, and the high-temperature adhesive strength is ensured; meanwhile, the acid values of the hydroxyl / carboxyl-containing monomer and the tackifying resin are controlled to reduce hydrophilic groups and improve moisture resistance, and the zeolite molecular sieve is used for adsorbing gas released by the PC base material under high temperature and high humidity to prevent the gas from damaging a bonding interface. According to the scheme, the process is simple, the cost is controllable, and the problem that the bonding force of the PC base material is reduced due to gas release in a high-temperature and high-humidity environment is effectively solved.

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 weather-resistant heat-insulation waterproof coating for an outer wall and a preparation method of the weather-resistant heat-insulation waterproof coating. The waterproof coating comprises the following components in parts by weight: 27-35 parts of modified acrylate polymer emulsion, 35-50 parts of composite filler, 5-10 parts of a curing system, 4-8 parts of a coalescing agent, 0.1-0.5 part of a defoaming agent, 0.3-0.8 part of a flatting agent, 0.2-0.6 part of a mildew preventive, 0.5-1.0 part of a thickening agent and 1-5 parts of a pH regulator, the modified acrylate polymer emulsion is prepared by carrying out pretreatment and silanization modification on cardanol and then carrying out monomer pre-emulsification and free radical polymerization. According to the waterproof coating provided by the invention, a Si-O-C network and a hindered amine free radical capture system are introduced, so that the weather resistance is improved; fluoride-nano silicon dioxide is used for constructing a roughness-low surface energy synergistic waterproof interface; acid-washed fly ash floating beads, silicon dioxide aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths so as to realize cross-scale porous filler heat preservation; the waterproof coating can serve in complex environments with large temperature difference fluctuation, acid rain and the like.

The invention discloses an optical adhesive with high light transmittance and high peel strength and a preparation method thereof. According to the method adopted by the invention, an alicyclic structure is introduced into a prepolymer (polyurethane acrylate high polymer), so that the viscosity of the optical adhesive is reduced, the movement of free radicals of a photoinitiator is facilitated, and the curing rate of the optical adhesive is improved. According to the method adopted by the invention, the molecular weight and distribution of the prepolymer are controlled through RAFT polymerization, and block copolymerization of urethane acrylate and monomers containing benzene rings and allyl ester is formed, so that soft and hard segments in the prepolymer (urethane acrylate high polymer) are reasonably distributed, and the mechanical property of the optical adhesive is improved; and the block copolymerization degree of the prepolymer (polyurethane acrylate high polymer) is improved.

The invention discloses an acrylate polymer, a preparation method thereof, a UV viscosity-reducing glue and a UV viscosity-reducing film. The acrylate polymer comprises the following raw materials in parts by weight: 125-690 parts of acrylate main glue, 5-30 parts of a modified monomer and 0.02-0.1 part of a catalyst, the modified monomer contains a carbon-carbon double bond and an isocyanate group; the acrylate main adhesive is prepared from the following raw materials in parts by weight: 5 to 30 parts of polyurethane acrylate prepolymer, 20 to 90 parts of soft monomer, 1 to 50 parts of hard monomer, 0.3 to 15 parts of functional monomer, 0.2 to 1.5 parts of thermal initiator and 100 to 500 parts of organic solvent. The UV viscosity-reducing glue is made of an acrylate polymer, and the UV viscosity-reducing film is made of the UV viscosity-reducing glue. The UV viscosity-reducing film has high viscosity before UV irradiation, the viscosity is rapidly reduced after UV irradiation, accurate control over the viscosity before and after UV irradiation is achieved, and the method is suitable for the high-precision transfer process of Mini LED chips.

The invention relates to the field of foam adhesive tapes, and particularly discloses a high-temperature-resistant acrylic foam adhesive tape and a production process thereof.The acrylic foam adhesive tape comprises an adhesive layer and a release paper layer, the adhesive layer is prepared by taking modified acrylate polymer as a base material and taking a foaming agent, a curing agent and a dispersing agent as auxiliary materials to be mixed in a solvent, and the release paper layer is prepared by taking the modified acrylate polymer as the base material and taking the foaming agent, the curing agent and the dispersing agent as the auxiliary materials; wherein the acrylate polymer is formed by crosslinking and curing a high-temperature-resistant monomer, a modified monomer, a hard monomer and a soft monomer under the action of an initiator, a phenyl sulfone structure and an imide ring in the high-temperature-resistant monomer can enhance the thermal stability of a main chain, meanwhile, thermal motion of a molecular chain is effectively inhibited, and the foam tape is endowed with excellent high-temperature resistance; a hydroxyapatite structure, a phosphate group and a silane bridging structure in the modified monomer can improve interfacial compatibility and enhance intermolecular cohesion at the same time, so that the foam tape is endowed with relatively high bonding strength and excellent tensile property.

A foaming cleansing composition includes 2.5% to 12.0% Benzoyl Peroxide, at least one acrylate polymer, Hyaluronic Acid, Niacinamide, a combination of anionic and amphoteric surfactants, expressly excluding alkyl polyglucosides, and water. The composition provides a unique textural feel as compared with existing benzoyl peroxide containing products, and in particular, is formulated as a light mousse-type architecture with viscosity which is retained on skin upon application and resists dripping, even in the shower. The composition is shelf stable and stable on application, demonstrating a viscosity of about 18-25 UD (Viscosity Rheomat M3 Spindle), and a pH about 5.5 to about 6.5.

A pressure sensitive adhesive composition containing a multimer of modified cyclodextrin; a pressure sensitive adhesive obtained from the pressure sensitive adhesive composition; and a pressure sensitive adhesive sheet having a pressure sensitive adhesive layer formed of the pressure sensitive adhesive. The multimer of modified cyclodextrin is preferably a dimer. The pressure sensitive adhesive is preferably an acrylic-based pressure sensitive adhesive and, in particular, preferably contains a crosslinked product obtained by crosslinking a (meth)acrylic ester polymer using a crosslinker.

The present invention pertains to a binder for a secondary battery positive electrode, to a method of preparation of said electrode and to its use in a secondary battery. The invention also relates to the secondary batteries manufactured by incorporating said electrode.

The invention discloses a photonic crystal film capable of being cured at room temperature, the photonic crystal film is formed by curing core-shell nanoparticles at room temperature, and the core-shell nanoparticles are composed of polystyrene nanoparticles serving as a core layer and acrylate polymers serving as a shell layer. According to the photonic crystal film capable of being cured at room temperature, the preparation method and the preparation equipment thereof, the photonic crystal film has the characteristics of a photonic crystal periodic structure, compared with traditional colored paper, chemical dyes are not needed to dye the photonic crystal film in the preparation process, a dispersion medium of the emulsion is water, the photonic crystal film is environmentally friendly, traditional heating curing or ultraviolet curing is not needed, and the cost is low. System curing depends on shell layer melting in the solvent evaporation process to achieve the physical cross-linking effect, the hydrophilic property of an acrylate polymer in the system is utilized, the colored paper can be well attached to a substrate and is not prone to moving, and compared with traditional colored paper, the preparation method is simple, and cumbersome steps and large instruments are not needed.

This invention discloses a water-based composite anti-corrosion coating for concrete and its preparation method, relating to the field of coatings. The invention utilizes a semi-continuous seed emulsion method, employing methyl methacrylate, butyl acrylate, acrylic acid, and the organosilicon monomer γ-methacryloyloxypropyltrimethoxysilane (γ-MPS) to obtain a water-based organosilicon-modified acrylate emulsion as the film-forming substance. Then, hydrophobically modified nano-silica is composited as a dopant filler, and the water-based composite anti-corrosion coating for concrete is obtained through physical blending. The coating prepared by this invention uses a water-based emulsion as the film-forming substance, resulting in low organic matter emissions and strong environmental friendliness. Furthermore, the inclusion of hydrophobically modified nano-silica strengthens the coating structure, while the cross-linking structure between the organosilicon-modified acrylate polymers imparts a certain degree of toughness. This combination of rigidity and flexibility results in excellent mechanical properties, while the hydrophobic structure prevents water molecule penetration and corrosion, giving the coating superior anti-corrosion performance.

The present invention provides a toner containing colored resin particles of a binder resin and a colorant and an external additive, the binder resin containing a carboxyl group-containing acrylate resin, and the external additive containing carboxyl group-containing acrylate polymer modified metal particles, and a method for preparing the same. By using the specific external additive and the adhesive resin, the prepared toner can still keep stable triboelectrification performance in a high-humidity environment, so that the problems of uneven image concentration and increase of bottom ash are avoided. In addition, the toner has good residual accumulation resistance, residual accumulation on the toner cartridge is reduced, the printing quality is improved, stable printing is still achieved in the high-speed printing process, and good image quality is obtained.

The application discloses a waterproof coating for outer wall weather resistance, heat insulation and heat preservation and a preparation method thereof. The waterproof coating comprises the following components in parts by weight: modified acrylate polymer emulsion 27-35 parts, composite filler 35-50 parts, curing system 5-10 parts, film forming aid 4-8 parts, defoaming agent 0.1-0.5 parts, leveling agent 0.3-0.8 parts, mildew-proof agent 0.2-0.6 parts, thickening agent 0.5-1.0 parts and pH regulator 1-5 parts. The modified acrylate polymer emulsion is prepared by pretreating and silanization modifying cardanol, monomer pre-emulsification and free radical polymerization. The waterproof coating provided by the application introduces Si-O-C network and hindered amine free radical capture system to improve weather resistance; fluorine compound-nano silicon dioxide constructs roughness-low surface energy synergistic waterproof interface; acid washing fly ash floating beads, silica aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths to realize cross-scale porous filler heat preservation; and the waterproof coating can serve in complex environments such as large temperature difference fluctuation and acid rain.

A urea-containing polyurethane acrylate resin is provided, which is prepared by: amide-forming the isocyanate groups in a polyurethane acrylate polymer with an amine compound to form urea groups, wherein the polyurethane acrylate polymer is prepared by reacting a hydroxyl-containing (meth)acrylate compound with a urethane prepolymer, the urethane prepolymer is prepared by reacting an isocyanate compound with a polyol compound, and the equivalent ratio of the isocyanate groups in the isocyanate compound to the hydroxyl groups in the polyol compound is 15:1 to 1:1. A urea-containing polyurethane acrylate resin, a composite material, and a method for preparing a composite material are also provided.

The present application belongs to the technical field of polymer adhesive material, and particularly relates to a resin composition for bonding polyolefin material and a preparation method thereof. The present application is prepared by formula screening optimization, and the ratio of the storage modulus E'30 at 30 DEG C to the storage modulus E'130 at 130 DEG C is greater than 100. The polyurethane resin is used in combination with butadiene-styrene copolymer with butadiene content greater than 60% and butadiene-styrene-vinylpyridine copolymer, so that the adhesive with good fusion and good adhesion to polyethylene base material is obtained. The allyl silicon modified pyridine monomer, allyl silicon modified carbazole monomer and lauryl acrylate are polymerized, and the prepared acrylate polymer is used in combination with the polyurethane resin. The pyridine group, tertiary butyl group, carbazole group and silicon atom in the acrylate polymer and the dodecyl group in the lauryl acrylate are used to improve the adhesion strength to the polyolefin base material.

The present invention provides a resin composition and an application thereof, the resin composition comprises a first composition, the first composition comprises a polyester acrylate polymer, (meth) acrylate, a first initiator and an inorganic filler, the resin composition can effectively inhibit warping of a packaging structure and offset of an electronic component, and the resin composition can be applied to packaging of electronic components. And the defects in the prior art are effectively overcome.

The invention discloses a preparation method of an alpha halogenated acrylate polymer with porous performance and narrow distribution. According to the method, an initiator does not need to be additionally added, and the yield can reach gt; the obtained halogenated acrylate polymer has the characteristics of porosity and narrow molecular weight distribution. The preparation of the alpha halogenated acrylate polymer material does not need additional addition of an initiator, and a polymer can be synthesized by using a one-pot method. The synthesized alpha-halogenated acrylate polymer has a degradable characteristic and a porous property, and can generate a porous fibrous structure during processing. The method is simple to operate and high in yield, the porous and narrow-distribution alpha-halogenated acrylate polymer can be obtained, and the method has application prospects in the fields of plastic processing, plastic green circulation and the like.

The invention discloses a perovskite quantum dot elastomer, a preparation method thereof and a display device. The elastomer comprises perovskite quantum dots and an allyl ester polymer protective layer matrix, the perovskite quantum dots are dispersed in the matrix, and the allyl acrylate polymer matrix coats the peripheries of the perovskite quantum dots to protect the perovskite quantum dots; the component of the perovskite quantum dot is CsPbX3, X is Cl or Br, the matrix of the allyl ester polymer protective layer is a butyl rubber-OOCCnH2n + 1 polymer, and the perovskite quantum dot is prepared through an in-situ chemical reaction. The allyl ester polymer chain forms a passivation layer on a perovskite quantum dot interface, surface traps are inhibited, and entry of H2O / O2 is prevented. The perovskite quantum dot elastomer has the advantages of good film-forming property, high fluorescence quantum efficiency, good stability, long fluorescence lifetime and adjustable light-emitting wavelength, and can be applied to the fields of backlight display and the like.

The invention provides an acrylate polymer for an OCA optical adhesive, a single-layer OCA optical adhesive with a gradient cross-linked structure and a preparation method and application, and relates to the technical field of optical adhesives, the oxygen inhibition effect in the UV curing process is ingeniously utilized, the gradient cross-linked structure with the upper portion being soft and the lower portion being hard is actively constructed in a single adhesive layer, and the single-layer OCA optical adhesive with the gradient cross-linked structure is obtained. Therefore, contradictory properties (such as softness / hardness, initial adhesion / high strength and filling / glue overflow resistance) are integrated, and the technical problem that the existing homogeneous OCA cannot give consideration to various properties is solved.

The invention provides polyacrylic acid alkyl ester latex, a preparation method thereof and ASA (acrylonitrile styrene acrylate) resin. Polymer films prepared from the polyalkyl acrylate latex have a wetting angle of 35 DEG to 75 DEG to pure water and an anchoring charge density of 0.2% to 6.0% by adding a hydrophilic monomer to copolymerize with the alkyl acrylate and hydrophilically modifying the polyalkyl acrylate polymer chain with a hydrophilic initiator. When the polyacrylic acid alkyl ester latex is subjected to subsequent emulsion graft polymerization, the tendency of the styrene-acrylonitrile copolymer entering the latex is increased, and the embedded styrene-acrylonitrile copolymer has an expansion effect on rubber and can improve the toughening efficiency of the rubber on one hand, and also increases the strength and modulus of the rubber on the other hand, so that the toughness of the rubber is improved. And the resin rigidity is improved. The ASA resin composition prepared from the polyacrylic acid alkyl ester latex has excellent impact strength and mechanical rigidity.

The invention belongs to the technical field of photoresist, and particularly relates to a triazinyl negative photoresist composition for an organic insulating film, which comprises the following components in parts by mass: 30-100 parts of a polymer containing a triazine structure; 5-65 parts of an unsaturated compound containing an olefinic bond; 0.005 to 10 parts of a surface active agent; 0.005 to 10 parts of an adhesion promoter; 0.005 to 30 parts of a free radical polymerization initiator; and 100 to 2000 parts of a solvent. According to the invention, a polyfunctional group triazine derivative participates in a free radical addition reaction, a poly (methyl) acrylate polymer containing a triazine structure is synthesized, and by regulating and controlling the type and number of functional groups of monomers participating in the reaction and the alkyl chain length and introducing aryl or naphthenic base, the polyfunctional group-containing poly (methyl) acrylate polymer is obtained. The hydrophilic-hydrophobic property, the temperature resistance and the chemical resistance of the polymer can be accurately adjusted.

The application discloses a bipolar group acrylate polymer-based dielectric elastomer material and a preparation method thereof, and belongs to the technical field of polymer synthesis. The method comprises the following steps: uniformly mixing hydroxybutyl acrylate and dichloromethane, adding organic acid and acylation catalyst, stirring and reacting, and obtaining a hydroxybutyl acrylate-based diester monomer after purification; then adding a crosslinking agent and a photoinitiator, uniformly mixing, and obtaining the bipolar group acrylate polymer-based dielectric elastomer material after solidification and crosslinking under ultraviolet light irradiation. The bipolar group acrylate polymer-based dielectric elastomer material is prepared by taking hydroxybutyl acrylate as a dielectric elastomer matrix, performing esterification reaction on the dielectric elastomer matrix with organic acid, and then adding a crosslinking agent to prepare a diester-based dielectric elastomer film. The bipolar group acrylate polymer-based dielectric elastomer material solves the problems of high elastic modulus and low dielectric constant, and improves the mechanical properties, driving performance and dielectric properties of the bipolar group acrylate polymer-based dielectric elastomer material.

The present disclosure provides a photopolymerizable composition. The photopolymerizable composition includes a) 40-60 parts by weight of a monofunctional (meth)acrylate monomer, per 100 parts of the total photopolymerizable composition; b) a photoinitiator; and c) a polymerization reaction product of components. A cured homopolymer of the monofunctional (meth)acrylate monomer has a glass transition temperature of 125 degrees Celsius or greater. The polymerization reaction product of components includes i) a diisocyanate; ii) a hydroxy functional methacrylate; iii) a polycarbonate diol; and iv) a catalyst. The polymerization reaction product includes a polyurethane methacrylate polymer. Often, the polycarbonate diol has a number average molecular weight of greater than 1,000 grams per mole (g / mol) or a weighted average of all polycarbonate diols present in the components has a Mn of greater than 1,000 g / mol; alternatively, the polyurethane methacrylate polymer has a weight average molecular weight of 8,000 g / mol or greater. An article is also provided including the photopolymerizable composition reaction product. Further, the present disclosure provides articles and methods of making articles. Methods are additionally provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.

The invention relates to an ultraviolet hardening adhesive, an adhesive tape and a preparation method and application of the ultraviolet hardening adhesive. The ultraviolet hardening adhesive comprises 100 parts by weight of a base polymer; 0.1 to 0.5 part by weight of a cross-linking agent; 10 to 30 parts by weight of a photocurable resin; 0.1 to 1.0 part by weight of a high-functionality monomer; 0.0001 to 0.1 part by weight of a crosslinking catalyst; 0.1 to 0.5 part by weight of a photopolymerization initiator; wherein the base polymer contains an acrylate polymer, the acrylate polymer contains a hydroxyl monomer or a carboxyl monomer, and the amount of the hydroxyl monomer or the carboxyl monomer per 100 parts by weight of the base polymer is not more than 5 parts by weight or the total amount of the hydroxyl monomer or the carboxyl monomer per 100 parts by weight of the base polymer is not more than 5 parts by weight. The ultraviolet-curable adhesive can be used for preparing an ultraviolet-curable adhesive layer, has ultralow initial adhesive strength and excellent cutting processability before curing, can quickly form a high-strength and high-reliability adhesive interface after light curing, and meets the dual requirements of high-precision lamination and long-term use of electronic equipment.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a high-adhesion high-temperature-resistant copper foil single-sided adhesive and a preparation method thereof. Comprising a copper foil and a pressure-sensitive adhesive which are laminated, the thickness of the copper foil is 12-30 [mu] m, the thickness of the pressure-sensitive adhesive is 10-30 [mu] m, the normal-temperature storage modulus is 200000-270000 Pa, the pressure-sensitive adhesive comprises an acrylate polymer and a terpene polymer, the acid value of the acrylate polymer is 16-22 mgKOH / g when the solid content is 21%, the normal-temperature storage modulus is 150000-180000 Pa, the acid value of the terpene polymer is 60-120 mgKOH / g, the softening point is 120-140 DEG C, and the temperature of the terpene polymer is 20-30 DEG C. The terpene polymer is obtained by free radical polymerization of a terpene monomer, a hard segment monomer and an acidic monomer under the action of an initiator. The copper foil single-sided adhesive prepared by the preparation method disclosed by the invention is thin in thickness and low in cost, and has excellent adhesion and warping resistance to foam.

The application discloses an acrylic ester polymer, a medical adhesive composition and a medical adhesive plaster. The acrylic ester polymer is at least copolymerized by an alkyl acrylate monomer, a carboxyl-containing monomer and a phase change monomer, and the carboxyl-containing monomer does not include the phase change monomer. The acrylic ester polymer has good tack holding force and good compatibility with oil-soluble drugs and water-soluble drugs, so that the pressure-sensitive adhesive layer prepared by mixing the acrylic ester polymer and a curing agent is used in the medical adhesive plaster, the medical adhesive plaster has good moisturizing effect, is beneficial to the absorption, retention and conduction of skin moisture, the medical adhesive plaster can keep the temperature of a pasted place, has good heat preservation effect, and therefore the medical adhesive plaster has good comfort, the pressure-sensitive adhesive layer of the medical adhesive plaster has good adhesion and is not easy to fall off from the skin or a base material, and the medical adhesive plaster has good compatibility with drugs and can play a role with the drugs.

This method for manufacturing a semiconductor device includes the steps of: preparing a laminate having a dicing-die bonding integrated film including a base material layer, a pressure-sensitive adhesive layer and an adhesive layer, and a plurality of semiconductor chips obtained by dicing a semiconductor wafer; dicing the adhesive layer by expanding the adhesive layer of the laminate under a cooling condition to manufacture a semiconductor chip with an adhesive piece; picking up the semiconductor chip with the adhesive piece from the pressure-sensitive adhesive layer; and bonding the semiconductor chip with the adhesive piece having the semiconductor chip and the adhesive piece to a support member via the adhesive piece. The adhesive layer contains a thermosetting resin component and an elastomer and may further contain an inorganic filler. The content of the inorganic filler is 0-5% by mass based on the total amount of a film adhesive. The elastomer includes a predetermined (meth) acrylate polymer.

The present invention concerns an aqueous radiation-curable polyurethane acrylate dispersion comprising: a) a polyurethane acrylate polymer which is the reaction product of: i) from 10 wt.% to 50 wt.% of an isocyanate monomer; ii) from 5 wt.% to 20 wt.% of a polyunsaturated monomer or polyunsaturated oligomer, which has an iodine value of at least 50 g of I2 / 100g of respectively polyunsaturated monomer or polyunsaturated oligomer, and at least one hydroxyl functional group; iii) from 10 wt.% to 55 wt.% of an acrylate functional oligomer which contains at least one (meth)acrylate group and at least one isocyanate-reactive group; and iv) from 1 wt.% to 10 wt. % of a dispersing agent which contains at least one isocyanate-reactive group and at least one group having a hydrophilizing action; dispersed in b) an aqueous continuous phase; and a coating composition and kit-of-parts with a drying agent; and a coated substrate.