213 results about "Acrylate polymer" patented technology

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 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.

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.

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.

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.

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 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 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.

This invention proposes an acrylate adhesive, its preparation method, and its application. The acrylate adhesive is a two-component adhesive comprising an acrylate polymer and a curing agent. The raw materials for preparing the acrylate polymer, by mass parts, include: 25-35 parts of soft monomer (A), 3-20 parts of hard monomer (B), 3-10 parts of functional monomer (C), 0.5-2 parts of cyclic (meth)acrylate monomer (D), 40-70 parts of solvent (E), and 0.05-0.1 parts of initiator (F). The acrylate polymer is prepared by a specific combination of the soft monomer, hard monomer, functional monomer, and cyclic (meth)acrylate monomer. The acrylate polymer and the curing agent are then used to prepare the acrylate adhesive. The adhesive exhibits high adhesion to the base fabric, water resistance, dry cleaning resistance, and reflective properties.

The invention relates to a two-component composition comprising: - a component A comprising: - a monofunctional (meth)acrylate monomer, and - a urethane (meth)acrylate polymer obtained without the use of isocyanate by means of a method comprising polycondensation by transurethanisation followed by a step of (meth)acrylate functionalisation, and - a component B comprising: - an initiator. The present invention also relates to the use of the two-component composition according to the invention as a coating or an adhesive. The present invention further relates to a method for assembling substrates, comprising: - coating at least one surface of the substrates to be assembled with the two-component composition according to the invention, then - bringing the substrates into contact, then - crosslinking the composition. Finally, the present invention relates to an article comprising the two-component composition according to the invention, the composition binding at least two substrates of the article.

A resin film for an optical film, the resin film containing a (meth) acrylate polymer and a carboxylic acid amide compound having an aromatic ring, the carboxylic acid amide compound being contained in an amount of 1000 ppm or more and 11000 ppm or less with respect to the (meth) acrylate polymer, the carboxylic acid amide compound being contained therein in the form of a crystal, and the (meth) acrylate polymer being a polymer having an aromatic ring. The crystal exhibits negative birefringence. Furthermore, a method for producing a resin film for an optical film, said method comprising a step for mixing a (meth) acrylate polymer and a carboxylic acid amide compound having an aromatic ring at a ratio of 1000 ppm to 11000 ppm (inclusive) with respect to the (meth) acrylate polymer; heating to a temperature not less than the softening temperature of the (meth) acrylate polymer and not more than the decomposition temperature of the (meth) acrylate polymer, and molding; and forming a thin film by cooling.

The invention relates to an aqueous polymer dispersion and its preparation. The dispersion comprises a styrene acrylate polymer, which is obtainable by free-radical polymerisation of 1-90 weight-% of monomer (a), which comprises at least one optionally substituted styrene; 10-99 weight-% of monomer (b), which comprises at least one alkyl (meth)acrylate, and 0-9 weight-% of monomer (c), which comprises at least one ethylenically unsaturated monomer, which is different from monomer (b). The polymerisation is conducted in a polymerisation medium comprising a cationic prepolymer, which is obtainable by free radical polymerisation of at least 10-55 weight-% of a monomer (i), which comprises at least one ethylenically unsaturated quaternary and / or tertiary amine, 35-90 weight-% of a monomer (ii), which comprises at least one optionally substituted styrene, and 0-55 weight-% of a monomer (iii), which comprises at least one alkyl (meth)acrylate. The oligomer content in the polymer dispersion is ≤1.4 weight-%, calculated from the dry polymer content.

An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.

The present invention relates to a liquid composition for filament winding comprising a monomer, a (meth)acrylic polymer and at least an initiator. In particular the present invention relates to a liquid composition for filament winding comprising a monomer, a (meth)acrylic polymer and at least one initiator or two initiators that have a different half life time, its process of polymerization, a system for the process of polymerization and an object obtained. The present invention also relates to a process for manufacturing thermoplastic composites, mechanical parts or structural elements made of composite material and to mechanical parts or structural elements made of composite material obtained via the process using such a liquid composition. The thermoplastic composite is a hollow body, and more preferably an axisymmetric hollow body.

The present invention contains an organic polymer (A) that has a reactive silicon group, a silane compound (B) that has a molecular weight of 1,500 or less, and a curing catalyst (C). The organic polymer (A) contains a (meth)acrylic acid ester polymer (A1). The silane compound (B) is represented by (R2)3-bX2 bSi-R3-Si(R2)3-bX2 b. R2 represents a monovalent hydrocarbon group having 1 to 20 carbon atoms, and X2 represents a hydroxyl group or a hydrolyzable group. b is 1, 2, or 3. R3 represents a divalent hydrocarbon group having 1 to 50 carbon atoms.

The present invention provides a semiconductor photoresist composition with excellent sensitivity and LER characteristics, as well as a pattern formation method utilizing the semiconductor photoresist composition. [Solution] The present invention relates to a semiconductor photoresist composition comprising an organometallic compound; a (meth)acrylate polymer containing at least one metal having a valency of 2 to 6; and a solvent, and a pattern formation method utilizing the same.

The invention provides a bi-component modified bone cement composition, a modified bone cement material and application thereof, and belongs to the technical field of biomedical materials. The bi-component modified bone cement composition comprises bone cement powder and modified bone cement liquid. Wherein the bone cement powder comprises the following components in percentage by mass: 98.5-99.99% of an acrylate polymer, 0.1-0.5% of an initiator, 0.1-0.5% of a stabilizer and the balance And 0.01 to 1.5% of an initiator. The modified bone cement liquid comprises a modifier and a bone cement liquid in a volume ratio of 1: (1-20). Wherein the bone cement liquid is prepared from the following components in percentage by mass: 94.5 to 99.98 percent of acrylate monomer; 0.01-5% of a stabilizing agent; 0.01%-1.5% of an accelerant; the modifier is polyethylene glycol.

Provided is an adhesive composition capable of forming an adhesive layer having high adhesiveness to an adherend after being cured.　A curable adhesive composition according to the present invention includes: an adhesive polymer; a polyfunctional cyclic ether compound having two or more cyclic ether groups per molecule; and an acid generator. The amount of the polyfunctional cyclic ether compound is 10-100 parts by mass relative to 100 parts by mass of the total amount of the adhesive polymer. The adhesive polymer preferably includes an acrylic polymer. The acrylic polymer preferably includes 0.5-10 mass% of a constituent unit derived from a carboxy group-containing monomer.

The present technology includes the use of pour point depressants to improve the low temperature viscosity of industrial gear lubricating compositions containing Group IV base oils. The present technology provides an industrial gear lubricating composition comprising a Group IV base oil, a sulfurized olefin, a phosphorus-containing agent, and a poly (meth) acrylate polymer pour point depressant.

A composite particle includes the reaction product of: A. a titanium dioxide particle having a surface that is functionalized with at least one R-OH group, wherein R is chosen from silicon, aluminum, zinc, and titanium; and B. a polymer that includes at least one Si-OR' group wherein R' is an alkyl group or H; wherein the polymer is attached to the surface of the titanium dioxide particle via an R-O- Si bond; and wherein the polymer is chosen from: (1) a comb polymer; an acrylate polymer comprising the at least one Si-OR' group, a core-shell polymer; and combinations thereof.